A steel reinforcement strength testing device for construction engineering
By designing the clamp as two clamping blocks and setting limiting slots on the clamping blocks, and using a pneumatic structure to control the clamping blocks to hold the steel bars, the problem that existing clamps cannot fully fit the outer wall of the steel bars is solved, thus improving the stability and accuracy of steel bar tensile testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YILI NORTHWEST PRODUCT QUALITY INSPECTION CENTER CO LTD
- Filing Date
- 2025-01-13
- Publication Date
- 2026-05-26
AI Technical Summary
Existing clamps cannot fully fit the outer wall of the reinforcing bar, resulting in low clamping stability and affecting the tensile testing effect of the reinforcing bar.
The clamp is designed as two clamping blocks, each with a limiting slot one and a limiting slot two. The limiting slots are used to limit the rebar, and the clamping of the clamping blocks is controlled by a pneumatic structure to ensure that the clamping blocks are completely in contact with the rebar column.
This improves the clamping stability of the reinforcing bars, ensuring the accuracy and safety of the tensile testing of the reinforcing bars.
Smart Images
Figure CN224286544U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel bar strength testing technology, specifically to a steel bar strength testing device for building engineering. Background Technology
[0002] During the quality inspection of reinforcing bars, it is necessary to test their tensile strength, yield strength, and other properties. Among these tests, a testing machine is often used to test the tensile strength of the reinforcing bars.
[0003] However, the clamps on the testing machine cannot fully fit the outer wall of the steel bar when clamping it, resulting in low stability of the clamps holding the steel bar, and therefore, the tensile test results are not good. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a steel bar strength testing device for building engineering, which solves the problem that existing clamps cannot fully fit the outer wall of the steel bar when clamping it.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] In this utility model, the steel reinforcement strength testing device for building engineering includes a support base and multiple support columns installed on the support base;
[0009] A drive element is installed at one end of each of the support columns away from the support base;
[0010] The support base is also equipped with a lower positioning component and an upper positioning component. The lower positioning component and the upper positioning component are the same and are symmetrically arranged on multiple support columns.
[0011] A second pneumatic structure is installed on the side of the drive member near the upper positioning member. The drive member controls the upper positioning member to move closer to or away from the lower positioning member through the second pneumatic structure.
[0012] The lower positioning component has a tapered groove and a mounting groove, which are connected to each other.
[0013] A clamp is installed in the conical groove. The clamp includes two symmetrically arranged clamping blocks. The two clamping blocks are brought closer to each other or moved away from each other by an adjustment structure. The side of each clamping block that is close to the conical groove slides in contact with the conical groove. A vertically arranged limiting slot 1 is opened on the side of the two symmetrical clamping blocks that are close to each other. A limiting slot 2 that is connected to the limiting slot 1 is opened in the middle of each limiting slot 1.
[0014] The steel bars on the steel bars are located in the corresponding two limiting slots, and the two symmetrically arranged limiting slots are used to clamp the steel bars on the steel bars.
[0015] When clamped, the flange of the steel bar is located in the corresponding limiting groove.
[0016] Furthermore, the adjustment structure includes a pneumatic structure located in the mounting groove, and a push block is installed at one end of the pneumatic structure near the clamp.
[0017] The lower positioning component has a sliding groove that corresponds to the clamping block. Each clamping block has an insert block on the side near the sliding groove. Each clamping block is slidably connected to the lower positioning component through the corresponding insert block and sliding groove.
[0018] The lower end of each of the aforementioned inserts is connected to the lower positioning member via a corresponding reset spring;
[0019] When the clamping block slides, it slides at an angle along the inclined surface of the conical groove;
[0020] In the initial state, the two corresponding clamping blocks are in contact with the push block on the side closest to the push block.
[0021] Furthermore, each of the insert blocks is integrally formed with the corresponding clamping block, and the end of each insert block away from the mounting groove is located on the outside of the sliding groove;
[0022] Each of the outermost inserts has a groove on the side near the corresponding clamping block.
[0023] Furthermore, the conical groove is provided with limiting blocks that correspond one-to-one with the clamping blocks;
[0024] The pusher is located between the two corresponding limit blocks and is slidably connected to the limit blocks.
[0025] Furthermore, both the first pneumatic structure and the second pneumatic structure are cylinders.
[0026] (III) Beneficial Effects
[0027] This utility model provides a device for testing the strength of reinforcing steel bars used in construction engineering. Compared with the prior art, it has the following advantages:
[0028] By setting the clamp in the form of two clamping blocks, and setting a limiting slot one and a limiting slot two on each clamping block, the limiting slot one and the limiting slot two are used to limit the detected steel bar at the same time. When the clamping block clamps the steel bar, the steel bar flange is located in the corresponding limiting slot two, and the limiting slot one set on the clamping block is completely in contact with the steel bar column, thereby improving the stability of the clamping of the steel bar. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 A schematic diagram of a steel reinforcement strength testing device for building engineering.
[0031] Figure 2 for Figure 1 A perspective view of the lower positioning component 10 being mounted on the support base via a support column;
[0032] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0033] Figure 4 for Figure 2 Top view;
[0034] Figure 5 This is a diagram showing the state of the fixture as it slides along the conical groove 11.
[0035] Figure 6 This is a sectional view of the fixture mounted on the lower or upper locating member via a tapered groove.
[0036] Figure label:
[0037] 1. Support base; 10. Lower positioning component; 11. Conical groove; 111. Slide groove; 112. Limiting block; 113. Return spring; 12. Clamp; 121. Insert block; 122. Limiting groove one; 123. Limiting groove two; 13. Push block; 14. Mounting groove; 141. Pneumatic structure one; 2. Driving component; 20. Upper positioning component; 3. Pneumatic structure two; 4. Support column; 5. Reinforcing bar column; 50. Reinforcing bar flange. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0039] This application provides a steel bar strength testing device for building engineering, which solves the problem that existing clamps cannot fully fit the outer wall of the steel bar when clamping it, thereby improving the tensile testing effect of the steel bar.
[0040] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:
[0041] During the quality inspection of reinforcing bars, it is necessary to test their tensile strength, yield strength, and other properties. Among these tests, a testing machine is often used to test the tensile strength of the reinforcing bars.
[0042] However, the clamps on the testing machine cannot fully fit the outer wall of the reinforcing bar when clamping it, resulting in low stability of the clamps holding the reinforcing bar.
[0043] Research has found that, for example Figures 1-6 As shown, by setting the clamp in the form of two clamping blocks, and setting a limiting slot one and a limiting slot two on each clamping block, the limiting slot one and the limiting slot two are used to limit the detected steel bar at the same time. When the clamping block clamps the steel bar, the steel bar flange is located in the corresponding limiting slot two, and the limiting slot one set on the clamping block is completely in contact with the steel bar column, thereby improving the stability of the clamping of the steel bar.
[0044] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0045] Example:
[0046] like Figures 1-5 As shown, a steel reinforcement strength testing device for building engineering includes a support base 1 and a plurality of support columns 4 installed on the support base 1;
[0047] A drive element 2 is installed at one end of each of the support columns 4 away from the support base 1;
[0048] The support base 1 is also equipped with a lower positioning component 10 and an upper positioning component 20. The lower positioning component 10 and the upper positioning component 20 are the same and are symmetrically arranged on multiple support columns 4.
[0049] The driving component 2 is equipped with a pneumatic structure 3 on the side near the upper positioning component 20. The driving component 2 controls the upper positioning component 20 to move closer to or further away from the lower positioning component 10 through the pneumatic structure 3.
[0050] The lower positioning member 10 is provided with a tapered groove 11 and a mounting groove 14, and the tapered groove 11 and the mounting groove 14 are connected.
[0051] A clamp 12 is installed within the conical groove 11. The clamp 12 includes two symmetrically arranged clamping blocks. The two clamping blocks are adjusted to move closer to or further apart from each other via an adjustment mechanism, as shown in the example below. Figure 5 As shown, each clamping block slides in contact with the conical groove 11 on the side closest to the conical groove 11. The two symmetrical clamping blocks are provided with vertically arranged limiting slots 122 on the side close to each other. Each limiting slot 122 is provided with a limiting slot 2 123 that communicates with the limiting slot 122 in the middle.
[0052] The steel bar column 5 is located in the corresponding two limiting slots 122, and the two symmetrically arranged limiting slots 122 are used to clamp the steel bar column 5.
[0053] When clamped, the reinforcing bar flange 50 is located within the corresponding limiting groove 123.
[0054] By setting the clamp 12 in the form of two clamping blocks, and setting a limiting slot 122 and a limiting slot 2 123 on each clamping block, the limiting slot 122 and the limiting slot 2 123 are used to limit the detected steel bar. When the clamping block clamps the steel bar, the steel bar flange 50 is located in the corresponding limiting slot 2 123. The limiting slot 122 set on the clamping block is completely in contact with the steel bar column 5, which improves the stability of the clamp 12 clamping the steel bar.
[0055] like Figures 1-6 As shown, the adjustment structure includes a pneumatic structure 141 located in the mounting groove 14, and a pusher 13 is installed at one end of the pneumatic structure 141 near the clamp 12.
[0056] The lower positioning member 10 is provided with a sliding groove 111 corresponding to each clamping block. Each clamping block is provided with an insert 121 on the side near the sliding groove 111. Each clamping block is slidably connected to the lower positioning member 10 through the corresponding insert 121 and the sliding groove 111.
[0057] The lower end of each of the insert blocks 121 is connected to the lower positioning member 10 via a corresponding reset spring 113;
[0058] When the clamping block slides, it slides at an angle along the inclined surface of the conical groove 11;
[0059] In the initial state, the two corresponding clamping blocks are in contact with the push block 13 on the side closest to the push block 13.
[0060] By setting the adjustment structure in the form of a pneumatic structure 141 and a pusher block 13, the pneumatic structure 141 drives the pusher block 13 to push the two corresponding clamping blocks synchronously, controlling the two clamping blocks to move closer or further away from each other, thereby adjusting the upper limit slots 122 of the two clamping blocks to form clamping slots with different inner diameters, which are used to fix steel bars 5 with different inner diameters.
[0061] like Figures 2-3 as well as Figures 5-6 As shown, each of the insert blocks 121 is integrally formed with the corresponding clamping block, and the end of each insert block 121 away from the mounting groove 14 is located on the outside of the sliding groove 111;
[0062] Each of the outermost inserts 121 has a groove on the side near the corresponding clamping block.
[0063] By setting the insert 121 on the clamping block, the side of the insert 121 away from the mounting groove 14 is set on the outside of the slide groove 111, and a groove is set on the insert 121 located on the outside, so as to facilitate the hand to pull the clamping block during maintenance.
[0064] like Figures 2-3 as well as Figures 5-6 As shown, the conical groove 11 is provided with limiting blocks 112 that correspond one-to-one with the clamping blocks;
[0065] The pusher block 13 is located between the two corresponding limit blocks 112 and is slidably connected to the limit blocks 112.
[0066] By setting two limit blocks 112, the limit blocks 112 limit the push block 13 to push the two clamping blocks, thereby improving the stability of the push block 13 in the process of pushing the clamping blocks.
[0067] Specifically, both pneumatic structure 141 and pneumatic structure 23 are cylinders or other telescopic components.
[0068] The entire device is connected to an external control box for the numerical control operation of pneumatic structure 141 and pneumatic structure 3.
[0069] During operation, the reinforcing bar is placed into the clamping groove formed by the two clamping blocks of the lower positioning piece 10;
[0070] When the reinforcing bar is placed, the reinforcing bar flange 50 is located within the corresponding limiting slot 123. Then, the pneumatic structure 141 is controlled to drive the pusher block 13 to synchronously push the two corresponding clamping blocks. The two clamping blocks slide along the inclined surface of the conical groove 11, thereby bringing the two clamping blocks closer together. Specifically, as shown below... Figure 5 As shown, this completes the clamping of the reinforcing bar by the two clamping blocks;
[0071] After the lower positioning component 10 clamps the steel bar, the limiting groove 122 set on the corresponding clamping block is completely fitted with the steel bar column 5, which improves the stability of the two clamping blocks when clamping the steel bar.
[0072] Then, the upper positioning member 20 is brought close to the reinforcing bar by the pneumatic structure 23, and the upper positioning member 20 is used to clamp the upper end of the reinforcing bar. When the upper positioning member 20 contacts the reinforcing bar, since the upper positioning member 20 is the same as the lower positioning member 10 and is symmetrically arranged, the upper positioning member 20 is adjusted according to the way the lower positioning member 10 clamps the reinforcing bar until the upper positioning member 20 completes the clamping of the reinforcing bar.
[0073] Finally, the upper positioning component 20 is controlled by the pneumatic structure 23 to pull the steel bar upward until the steel bar breaks, thus completing the tensile strength test of the steel bar and transmitting the detected data to the display screen of the control box.
[0074] After the test is completed, the control pneumatic structure 141 drives the push block 13 to return to its original position, and the clamping block also returns to its original position under the action of the return spring 113, releasing the clamp 12 from the steel bar, and taking the broken steel bar out from the lower positioning member 10 and the upper positioning member 20 respectively.
[0075] It should be noted that the rebar tensile testing device is an improvement on the existing tensile testing machine. Therefore, how to use the numerical control operation of the control box to complete the detection and transmission of tensile data is an existing technology. This application mainly focuses on improving the lower positioning part 10, the upper positioning part 20 and the clamp 12 in the testing machine to improve the stability of the rebar tensile process.
[0076] Specifically, depending on actual needs, a protective net can be installed on the detection device to prevent safety hazards caused by the splashing of debris generated by the breakage of steel bars.
[0077] In summary, compared with existing technologies, it has the following beneficial effects:
[0078] 1. By setting the clamp 12 in the form of two clamping blocks, and setting a limiting slot 122 and a limiting slot 23 on each clamping block, the limiting slot 122 and the limiting slot 23 simultaneously limit the detected steel bar. When the clamping block clamps the steel bar, the steel bar flange 50 is located in the corresponding limiting slot 2 123. The limiting slot 122 set on the clamping block is completely in contact with the steel bar column 5, which improves the stability of the clamp 12 clamping the steel bar.
[0079] 2. By setting the adjustment structure in the form of a pneumatic structure 141 and a pusher block 13, the pneumatic structure 141 drives the pusher block 13 to push the two corresponding clamping blocks synchronously, controlling the two clamping blocks to move closer or further away from each other, thereby adjusting the upper limit slots 122 of the two clamping blocks to form clamping slots with different inner diameters, which are used to fix steel bars 5 with different inner diameters.
[0080] 3. By setting the insert 121 on the clamping block, the side of the insert 121 away from the mounting groove 14 is set on the outside of the slide groove 111, and a groove is set on the insert 121 located on the outside, so as to facilitate the hand to pull the clamping block during maintenance.
[0081] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0082] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A device for testing the strength of reinforcing steel bars used in construction engineering, characterized in that, Includes a support base (1) and multiple support columns (4) installed on the support base (1); A drive element (2) is installed at one end of each of the support columns (4) away from the support base (1); The support base (1) is also equipped with a lower positioning component (10) and an upper positioning component (20), the lower positioning component (10) and the upper positioning component (20) are the same and are symmetrically arranged on multiple support columns (4); The drive member (2) is equipped with a pneumatic structure two (3) on the side near the upper positioning member (20). The drive member (2) controls the upper positioning member (20) to move closer to or further away from the lower positioning member (10) through the pneumatic structure two (3). The lower positioning member (10) is provided with a tapered groove (11) and a mounting groove (14), and the tapered groove (11) and the mounting groove (14) are connected. A clamp (12) is installed in the conical groove (11). The clamp (12) includes two symmetrically arranged clamping blocks. The two clamping blocks are brought closer to each other or moved away from each other by an adjustment structure. The side of each clamping block that is close to the conical groove (11) slides against the conical groove (11). The side of the two symmetrical clamping blocks that are close to each other is provided with a vertically arranged limiting slot one (122). The middle of each limiting slot one (122) is provided with a limiting slot two (123) that is connected to the limiting slot one (122). The steel bar column (5) is located in the corresponding two limiting slots (122), and the two symmetrically arranged limiting slots (122) are used to clamp the steel bar column (5). When clamped, the reinforcing bar flange (50) is located in the corresponding limiting groove (123).
2. The reinforcing bar strength detection device for construction work according to claim 1, wherein The adjustment structure includes a pneumatic structure (141) located in the mounting groove (14), and a push block (13) is installed at one end of the pneumatic structure (141) near the clamp (12); The lower positioning member (10) is provided with a sliding groove (111) corresponding to each clamping block. Each clamping block is provided with an insert (121) on the side near the sliding groove (111). Each clamping block is slidably connected to the lower positioning member (10) through the corresponding insert (121) and the sliding groove (111). The lower end of each of the aforementioned inserts (121) is connected to the lower positioning member (10) via a corresponding return spring (113); When the clamping block slides, it slides at an angle along the inclined surface of the conical groove (11); In the initial state, the two corresponding clamping blocks are in contact with the push block (13) on the side closest to the push block (13).
3. The reinforcing bar strength detection device for construction work according to claim 2, characterized in that, Each of the inserts (121) is integrally formed with the corresponding clamping block, and the end of each insert (121) away from the mounting groove (14) is located on the outside of the slide groove (111); Each of the outermost inserts (121) has a groove on the side near the corresponding clamp.
4. The reinforcing bar strength detection device for construction work according to claim 2, characterized in that, The conical groove (11) is provided with limiting blocks (112) that correspond one-to-one with the clamping blocks; The push block (13) is located between the two corresponding limit blocks (112) and is slidably connected to the limit blocks (112).
5. The reinforcing bar strength detection device for construction work according to claim 2, wherein Both the first pneumatic structure (141) and the second pneumatic structure (3) are cylinders.