Reinforcing steel bar tensile resistance detection equipment

Abstract

The utility model provides a steel bar tensile resistance detection device, which relates to the technical field of tensile resistance detection and comprises a base, a pull-down structure and an upper clamping structure. Side supporting plates are fixed to the left end and the right end of the upper side of the machine base, linear guide rails are arranged on the inner side faces of the side supporting plates, pull-down structures are slidably connected to the linear guide rails, the pull-down structures ascend and descend in the vertical direction, the upper ends of the side supporting plates are fixed to the lower portion of a top plate, and a tension detector is installed in the middle of the top plate. An upper clamping structure is hung below the tension detector, and a steel bar is stretched between the upper clamping structure and the pull-down structure; supporting feet are arranged at the four corners of the lower end face of the machine base, and a base plate is arranged on the upper end face of the machine base. The upper clamping structure is used for stably clamping the upper portion of the reinforcing steel bar, then the pull-down structure is used for stably clamping the lower portion of the reinforcing steel bar and stretching the lower portion downwards, the stretching direction is straight and stable, the tensile strength of the reinforcing steel bar can be detected more stably and accurately, and use is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of tensile strength detection, in particular to a steel bar tensile strength detection device. Background Art

[0002] As is known to all, a steel bar tensile strength detection device is a device for steel bar quality detection; in the specification of a steel bar tensile strength detection device of the prior art (publication number CN213813164U), it is mentioned that "the fixed frame is fixedly mounted on the top right part of the base, the top left part of the base is provided with two sets of dovetail slide rails, the mobile frame can be slid left and right on the two sets of dovetail slide rails, the fixed ends of the two sets of hydraulic cylinders are fixedly mounted on the left end bottom of the fixed frame, the display is fixedly mounted on the front part of the mobile frame, the pressure sensor is fixedly mounted on the right end bottom of the mobile frame, the infrared ranging probe is fixedly mounted on the right end upper part of the mobile frame, the pressure sensor is arranged corresponding to the hydraulic cylinder, and the two sets of limit fixing mechanisms are respectively arranged on the fixed frame and the mobile frame", but in the prior art, the steel bar needs to be squeezed and bent before being stretched, which is more complicated on the one hand, and the tensile direction of the steel bar after squeezing and bending is also unstable on the other hand, which affects the accuracy of tensile force detection and is not stable and reliable to use. Utility Model Content

[0003] In order to overcome the defects of the prior art, a steel bar tensile force testing device is now provided to solve the problem that in the prior art, the steel bars need to be extruded and bent before being stretched. On the one hand, the operation is more cumbersome, and on the other hand, the tensile direction of the steel bars after extrusion and bending is also unstable, which affects the accuracy of tensile force detection and is not stable and reliable to use.

[0004] In order to achieve the above-mentioned purpose, a steel bar tensile force testing device is provided, including a machine base, a pull-down structure and an upper clamping structure; side support plates are fixed to the left and right ends of the upper side of the machine base, and a linear guide rail is arranged on the inner side of the side support plate, and the pull-down structure is slidably connected to the linear guide rail, and the pull-down structure can be lifted and lowered in the vertical direction, the upper end of the side support plate is fixed under the top plate, and a tensile force detector is installed in the middle of the top plate, an upper clamping structure is suspended under the tensile force detector, and a steel bar is stretched between the upper clamping structure and the pull-down structure.

[0005] Furthermore, the four corners of the lower end surface of the machine base are provided with supporting feet, and the upper end surface of the machine base is provided with a pad, and the left and right parts of the upper end of the pad are provided with positioning rods, and the upper ends of the positioning rods are fixed in the upper fixing block.

[0006] Furthermore, a control panel is installed in the middle of the outer side surface of the side support plate on the right side of the base, and a liquid crystal display is arranged on the control panel.

[0007] Furthermore, the lower part of the tension detector is located in the lower frame, the lower frame is fixed to the middle of the lower end surface of the top plate, and an upper pull rod is provided at the lower end of the tension detector, and the lower end of the upper pull rod is fixed to the middle of the upper end of the upper clamping structure.

[0008] Furthermore, an upper hanging plate is provided on the upper clamping structure, and a connecting rod is provided in the middle of the upper hanging plate, and two groups of side fixing plates are provided at both ends of the lower end surface of the upper hanging plate, and upper telescopic cylinders are installed in the two groups of side fixing plates on the same side, and the front end of the upper telescopic cylinder is fixed to the outside of the upper clamping jaws, and the two groups of upper clamping jaws are clamped on both sides of the upper part of the steel bar.

[0009] Furthermore, the left and right parts of the pull-down structure are both provided with guide sleeves, each set of guide sleeves is sleeved on the positioning rod on the same side, and sliders are provided at both ends of the left and right ends of the pull-down structure, the sliders are slidably connected to the linear guide rails on the same side, and lower support plates are fixed on the left and right parts of the upper end surface of the pull-down structure, and a cross arm plate is provided on the inner side surface of the lower support plate, and an installation groove is provided on the cross arm plate, and a ball bearing is installed in the installation groove.

[0010] Furthermore, multiple groups of lower telescopic cylinders are fixed on the lower support plate, and the front ends of the lower telescopic cylinders are fixed to the outside of the lower clamps, and the clamping surfaces of the lower clamps are provided with anti-slip linings, and the two groups of lower clamps are clamped on both sides of the lower part of the steel bar.

[0011] The beneficial effects of the utility model are:

[0012] 1. The linear guide rail of the utility model is provided to facilitate the sliding movement of the pull-down structure up and down thereon, and the positioning rod is provided for straight guidance, so that the pull-down structure can be lifted and lowered to maintain a straight and stable state, and the sliding is safe and reliable.

[0013] 2. In the utility model, the tension tester is suspended with an upper clamping structure. After the upper clamping structure clamps the upper part of the steel bar, the lower pull structure clamps the lower part of the steel bar and then stretches it downward. At this time, the tension tester can detect the tensile force of the lower pull structure pulling the steel bar downward, so as to reversely calculate the tensile strength of the steel bar, and the detection is more accurate and reliable.

[0014] 3. The utility model utilizes the telescopic activity of the upper telescopic cylinder at the lower part of the upper clamping structure to push and pull the upper clamping jaws to move, so that the upper part of the steel bar can be clamped conveniently with two groups of upper clamping jaws. The clamping is safe and stable, and the use is stable and reliable.

[0015] 4. The utility model utilizes the telescopic activity of the lower telescopic cylinder on the pull-down structure to drive the lower clamping jaw to move left and right, so that the lower clamping jaws on both sides can be used to stably clamp the lower part of the steel bar, and the bottom of the lower clamping jaw can be located on the rolling surface of the ball, so that the movement is safe and stable, which helps to ensure the firmness of the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is a front view schematic diagram of the pull-down structure of an embodiment of the utility model;

[0018] Figure 3 It is a top view schematic diagram of the pull-down structure of an embodiment of the utility model;

[0019] Figure 4 It is a front view schematic diagram of the upper clamping structure of an embodiment of the utility model.

[0020] In the figure: 1. base; 10. support foot; 11. pad; 12. side support plate; 13. linear guide; 14. positioning rod; 15. control panel; 16. LCD screen; 17. upper fixing block; 18. top plate; 19. lower sleeve; 2. tension tester; 20. upper pull rod; 3. steel bar; 4. pull-down structure; 40. guide sleeve; 41. slider; 42. lower support plate; 43. cross arm plate; 44. mounting groove; 45. ball bearing; 46. lower telescopic cylinder; 47. lower clamping claw; 48. anti-slip lining; 5. upper clamping structure; 50. connecting rod; 51. upper hanging plate; 52. side fixing plate; 53. upper telescopic cylinder; 54. upper clamping claw. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is further described in detail in combination with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the utility model. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present disclosure.

[0022] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0023] Figure 1 It is a front view schematic diagram of an embodiment of the utility model, Figure 2 This is a front view schematic diagram of the pull-down structure of the embodiment of the utility model. Figure 3 The schematic diagram of the pull-down structure of the utility model embodiment is a top view and Figure 4 It is a front view schematic diagram of the upper clamping structure of an embodiment of the utility model.

[0024] Reference Figures 1 to 4 As shown, the utility model provides a steel bar tensile force detection device, including a machine base 1, a pull-down structure 4 and an upper clamping structure 5; side support plates 12 are fixed to the left and right ends of the upper side of the machine base 1, and a linear guide rail 13 is provided on the inner side of the side support plate 12, and the pull-down structure 4 is slidably connected to the linear guide rail 13, and the pull-down structure 4 can be lifted and lowered in the vertical direction, the upper end of the side support plate 12 is fixed under the top plate 18, and a tensile force detector 2 is installed in the middle of the top plate 18, the upper clamping structure 5 is suspended under the tensile force detector 2, and a steel bar 3 is stretched between the upper clamping structure 5 and the pull-down structure 4.

[0025] In this embodiment, feet 10 are provided at the four corners of the lower end surface of the base 1, and a pad 11 is provided on the upper end surface of the base 1, and positioning rods 14 are provided on the left and right parts of the upper end of the pad 11, and the upper ends of the positioning rods 14 are fixed in the upper fixed block 17; a control panel 15 is installed in the middle part of the outer side surface of the side support plate 12 on the right side of the base 1, and a liquid crystal display screen 16 is provided on the control panel 15.

[0026] As a preferred embodiment, the linear guide rail 13 in the utility model is provided to facilitate the pull-down structure 4 to slide up and down thereon, and the positioning rod 14 is provided for straight guidance, so that the pull-down structure 4 can be lifted and lowered to remain straight and stable, and the sliding is safe and reliable.

[0027] In this embodiment, the lower part of the tension tester 2 is located in the lower sleeve frame 19, the lower sleeve frame 19 is fixed to the middle of the lower end surface of the top plate 18, and an upper pull rod 20 is provided at the lower end of the tension tester 2, and the lower end of the upper pull rod 20 is fixed to the middle of the upper end of the upper clamping structure 5.

[0028] As a preferred embodiment, the tension tester 2 in the utility model is suspended with an upper clamping structure 5. After the upper clamping structure 5 clamps the upper part of the steel bar 3, the lower pull-down structure 4 clamps the lower part of the steel bar 3 and then stretches it downward. At this time, the tension tester 2 can detect the tensile force of the lower pull-down structure 4 pulling the steel bar 3 downward, thereby reversely calculating the tensile strength of the steel bar 3, and the detection is more accurate and reliable.

[0029] In this embodiment, an upper hanging plate 51 is provided on the upper clamping structure 5, and a connecting rod 50 is provided in the middle of the upper hanging plate 51, and two groups of side fixing plates 52 are provided at both ends of the lower end surface of the upper hanging plate 51, and upper telescopic cylinders 53 are installed in the two groups of side fixing plates 52 on the same side, and the front ends of the upper telescopic cylinders 53 are fixed to the outside of the upper clamping jaws 54, and the two groups of upper clamping jaws 54 are clamped on both sides of the upper part of the steel bar 3.

[0030] As a preferred embodiment, the utility model utilizes the telescopic activity of the upper telescopic cylinder 53 at the bottom of the upper clamping structure 5 to push and pull the upper clamping jaws 54 to move, so as to facilitate the use of two groups of upper clamping jaws 54 to clamp the upper part of the steel bar 3, and the clamping is safe and stable, and the use is stable and reliable.

[0031] In this embodiment, the left and right parts of the pull-down structure 4 are both provided with guide sleeves 40, and each group of guide sleeves 40 is sleeved on the positioning rod 14 on the same side, and the left and right ends of the pull-down structure 4 are both provided with sliders 41, and the sliders 41 are slidably connected to the linear guide rails 13 on the same side, and the left and right parts of the upper end surface of the pull-down structure 4 are fixed with lower support plates 42, and the inner side surface of the lower support plate 42 is provided with a cross arm plate 43, and the cross arm plate 43 is provided with an installation groove 44, and the installation groove 44 is installed with a ball 45; multiple groups of lower telescopic cylinders 46 are fixed on the lower support plate 42, and the front end of the lower telescopic cylinder 46 is fixed to the outside of the lower clamp 47, and the clamping surface of the lower clamp 47 is provided with an anti-slip lining 48, and the two groups of lower clamps 47 are clamped on both sides of the lower part of the steel bar 3.

[0032] As a preferred embodiment, the utility model utilizes the telescopic activity of the lower telescopic cylinder 46 on the pull-down structure 4 to drive the lower clamping jaw 47 to move left and right, so that the lower clamping jaws 47 on both sides can be used to stably clamp the lower part of the steel bar 3, and the bottom of the lower clamping jaw 47 can be located on the rolling surface of the ball 45, so that its movement is safe and stable, which helps to ensure the firmness of the clamping.

[0033] The utility model can effectively solve the problem in the prior art that the steel bars need to be squeezed and bent before being stretched, which is more complicated on the one hand and unstable in the tensile strength direction of the steel bars after being squeezed and bent on the other hand, affecting the accuracy of tensile strength detection and making the use unstable and unreliable. The utility model utilizes an upper clamping structure to stably clamp the upper part of the steel bar, and then uses a lower pull-down structure to stably clamp the lower part of the steel bar and stretch it downward, and the stretching direction is straight and stable, making the detection of the tensile strength of the steel bar more stable and accurate, and safe and reliable to use.

[0034] The above embodiments are used to explain the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claims for protection shall be included in the protection scope of the present invention.

Claims

1. A steel bar tensile force detection device, characterized in that: The invention comprises a machine base (1), a pull-down structure (4) and an upper clamping structure (5); side support plates (12) are fixed to both left and right ends of the upper side of the machine base (1), and a linear guide rail (13) is arranged on the inner side surface of the side support plate (12); the pull-down structure (4) is slidably connected to the linear guide rail (13), and the pull-down structure (4) can be lifted and lowered in a vertical direction; the upper end of the side support plate (12) is fixed under a top plate (18), and a tension detector (2) is installed in the middle of the top plate (18); an upper clamping structure (5) is suspended under the tension detector (2), and a steel bar (3) is stretched between the upper clamping structure (5) and the pull-down structure (4).

2. A steel bar tensile force detection device according to claim 1, characterized in that: The four corners of the lower end surface of the machine base (1) are provided with supporting feet (10), and the upper end surface of the machine base (1) is provided with a pad (11), and the upper left and right parts of the pad (11) are provided with positioning rods (14), and the upper ends of the positioning rods (14) are fixed in the upper fixing block (17).

3. A steel bar tensile force detection device according to claim 1, characterized in that: A control panel (15) is installed at the middle of the outer side surface of the side support plate (12) on the right side of the machine base (1), and a liquid crystal display screen (16) is arranged on the control panel (15).

4. A steel bar tensile force detection device according to claim 1, characterized in that: The lower part of the tension detector (2) is located in the lower sleeve frame (19), the lower sleeve frame (19) is fixed to the middle part of the lower end surface of the top plate (18), and the lower end of the tension detector (2) is provided with an upper pull rod (20), and the lower end of the upper pull rod (20) is fixed to the middle part of the upper end of the upper clamping structure (5).

5. A steel bar tensile force detection device according to claim 1, characterized in that: The upper clamping structure (5) is provided with an upper hanging plate (51), and a connecting rod (50) is provided in the middle of the upper hanging plate (51), and two groups of side fixing plates (52) are provided at both left and right ends of the lower end surface of the upper hanging plate (51), and upper telescopic cylinders (53) are installed in the two groups of side fixing plates (52) on the same side, and the front ends of the upper telescopic cylinders (53) are fixed to the outside of the upper clamping claws (54), and the two groups of upper clamping claws (54) clamp on both sides of the upper part of the steel bar (3).

6. A steel bar tensile force detection device according to claim 1, characterized in that: The left and right parts of the pull-down structure (4) are both provided with guide sleeves (40), each set of guide sleeves (40) is sleeved on the positioning rod (14) on the same side, and the left and right ends of the pull-down structure (4) are both provided with sliders (41), the sliders (41) are slidably connected to the linear guide rail (13) on the same side, and the left and right parts of the upper end surface of the pull-down structure (4) are both fixed with lower support plates (42), the inner side surface of the lower support plate (42) is provided with a cross arm plate (43), the cross arm plate (43) is provided with a mounting groove (44), and a ball bearing (45) is installed in the mounting groove (44).

7. A steel bar tensile force detection device according to claim 6, characterized in that: A plurality of groups of lower telescopic cylinders (46) are fixed on the lower support plate (42), and the front ends of the lower telescopic cylinders (46) are fixed to the outside of the lower clamping jaws (47), and the clamping surfaces of the lower clamping jaws (47) are provided with anti-slip linings (48), and the two groups of lower clamping jaws (47) are clamped on both sides of the lower part of the steel bar (3).

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