Rapid detection device for tensile property of reinforcing steel bar

Abstract

The utility model discloses a rapid detection device for the tensile property of a steel bar, which relates to the technical field of steel bar performance detection and comprises a base and a tensile component arranged on the base and used for performing tensile detection on the steel bar, the stretching assembly comprises a two-way lead screw rotationally installed on the base, a movable plate is connected to the two-way lead screw in a threaded mode, a fixing base is fixedly installed on the side wall of the movable plate, a through hole allowing a steel bar to penetrate through is formed between the movable plate and the fixing base, and a clamping plate used for clamping and fixing the steel bar is arranged on the inner side of the fixing base in a sliding mode. According to the utility model, the problems of tedious operation steps and low reinforcement detection efficiency during reinforcement detection are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar performance detection, and specifically relates to a steel bar tensile performance rapid detection device. Background Art

[0002] Tensile strength is an essential guarantee item in the mechanical properties of steel bars, because tensile strength is the ultimate ability of steel bars to withstand static loads. It can indicate how much strength reserves the steel bars have after reaching the yield point, and is an important indicator for resisting plastic failure.

[0003] The existing patent (application number: CN202320447787.0) proposes a tensile performance testing device for component steel bars. Through the cooperation of a servo motor, a screw rod and a moving frame, the servo motor is started to drive the screw rod to rotate, thereby driving the threaded moving frame to move, and the steel bars can be stretched. However, in the actual process of testing the steel bars, the first step is to fix the steel bars, and the second step is to stretch the steel bars. At the same time, after the stretching test is completed, the steel bars need to be released and then removed from the detection device. The operation steps are relatively cumbersome, which reduces the efficiency of steel bar detection.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a device for quickly detecting the tensile properties of steel bars, so as to achieve the desired purpose of quickly detecting the steel bars.

[0006] In order to solve the above technical problems, the utility model provides a steel bar tensile performance rapid detection device, comprising: a base and a tensile component arranged on the base for tensile detection of steel bars;

[0007] It is characterized in that the stretching assembly includes a bidirectional screw rod rotatably installed on a base, a movable plate is threadedly connected to the bidirectional screw rod, a fixed seat is fixedly installed on the side wall of the movable plate, a through hole for steel bars to pass through is provided between the movable plate and the fixed seat, and a clamping plate for clamping and fixing the steel bars is slidably provided on the inner side of the fixed seat.

[0008] Furthermore, it also includes a connecting component, which includes a sliding rod slidably connected to the movable plate, a return spring is sleeved on the sliding rod, one end of the return spring is connected to the side wall of the splint, and the other end of the return spring is connected to the side wall of the movable plate, one end of the sliding rod is connected to a steel rope, and the sliding rod is fixed to the side wall of the splint by the steel rope, the other end of the sliding rod is fixedly connected to a connecting frame, and a resistance rod is fixedly connected to the top of the connecting frame.

[0009] Furthermore, a trapezoidal groove is provided on the fixing seat, the clamping plate is slidably arranged inside the trapezoidal groove, and a side of the clamping plate that is in contact with the trapezoidal groove is an inclined structure.

[0010] Furthermore, a side of the clamping plate away from the inner wall of the trapezoidal groove is provided with anti-slip texture.

[0011] Furthermore, a guide strip is provided on the inner wall of the trapezoidal groove, and a groove matched with the guide strip is provided on the side of the clamping plate that is in contact with the trapezoidal groove.

[0012] Furthermore, guide rails are symmetrically installed on the top of the base, and guide grooves adapted to the guide rails are opened on the movable plate.

[0013] Furthermore, a driving motor is fixedly mounted on the side wall of the base, and a driving end of the driving motor is fixedly connected to one end of the bidirectional lead screw.

[0014] Furthermore, two bidirectional screw rods are symmetrically arranged, and a synchronous wheel is fixedly installed on one end of each of the two bidirectional screw rods, and a synchronous belt is connected between the two synchronous wheels.

[0015] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0016] 1. In the utility model, the clamping plate can be pushed to slide to the outside of the trapezoidal groove by the resetting action of the resetting spring elastic force, thereby reducing the distance between the two clamping plates in the trapezoidal groove, and making the clamping plate close to the outer wall of the steel bar, so that the clamping plate can initially clamp and fix the steel bar. As the two movable plates continue to move away from each other, the clamping plate will be driven to slide in the trapezoidal groove by the pulling force of the steel bar. Since the trapezoidal groove is a trapezoidal structure with one end wide and the other end narrow, the distance between the two clamping plates in the trapezoidal groove will become closer and closer during the movement of the clamping plate. At this time, the clamping plate will clamp the steel bar tighter and tighter, and the staff does not need to manually fix the steel bar, thereby improving the efficiency of steel bar detection.

[0017] 2. In the utility model, the two movable plates are driven to move relative to each other by a bidirectional screw rod. As the two movable plates move, the two abutting rods abut against each other. As the movable plates continue to move relative to each other, the abutting rods can move in a direction away from the movable plates. When the abutting rods move, they drive the connecting frame and the sliding rod to move synchronously. The sliding rod can pull the clamping plate to slide inside the trapezoidal groove through the steel rope connected to its end. At this time, the distance between the two clamping plates located in the trapezoidal groove is increased, which is convenient for fixing the steel bars on the movable plates and improving the detection efficiency of the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0023] Numbers in the figure:

[0024] 1. Base; 2. Bidirectional screw rod; 3. Movable plate; 4. Fixed seat; 5. Through hole; 6. Trapezoidal groove; 7. Clamping plate; 8. Guide strip; 9. Sliding rod; 10. Reset spring; 11. Connecting frame; 12. Resistance rod; 13. Guide rail;

[0025] 14. Synchronous wheel; 15. Synchronous belt; 16. Driving motor.

[0026] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 4 As shown, the utility model provides a device for quickly detecting the tensile properties of steel bars.

[0031] Specifically, by Figure 1-4 The invention provides a method for detecting the tensile strength of a steel bar by using a base 1 and a tensile assembly arranged on the base 1; the tensile assembly comprises a bidirectional screw rod 2 rotatably mounted on the base 1, a movable plate 3 is threadedly connected to the bidirectional screw rod 2, a fixed seat 4 is fixedly mounted on the side wall of the movable plate 3, a through hole 5 for the steel bar to pass through is arranged between the movable plate 3 and the fixed seat 4, and a clamping plate 7 for clamping and fixing the steel bar is slidably arranged on the inner side of the fixed seat 4.

[0032] In the utility model, the steel bars can be fixed on the movable plate 3 by cooperating with the fixing seat 4 and the clamping plate 7 arranged on the movable plate 3, and the two movable plates 3 can be driven to move relative to or away from each other by the bidirectional screw rod 2. After the steel bars are fixed, the two movable plates 3 can move away from each other to realize the tensile test of the steel bars.

[0033] Furthermore, as a specific implementation of the utility model, the utility model provides a device for quickly detecting the tensile properties of steel bars.

[0034] Specifically, Figure 1-4 It also includes a connecting component, which includes a sliding rod 9 slidably connected to the movable plate 3, a reset spring 10 is sleeved on the sliding rod 9, one end of the reset spring 10 is connected to the side wall of the splint 7, and the other end of the reset spring 10 is connected to the side wall of the movable plate 3, one end of the sliding rod 9 is connected to a steel rope, the sliding rod 9 is fixed to the side wall of the splint 7 by the steel rope, the other end of the sliding rod 9 is fixedly connected to a connecting frame 11, and a resistance rod 12 is fixedly connected to the top of the connecting frame 11.

[0035] In the utility model, as the two movable plates 3 move relative to each other, the two abutting rods 12 abut against each other. As the movable plates 3 continue to move relative to each other, the abutting rods 12 can move in a direction away from the movable plates 3. When the abutting rods 12 move, they drive the connecting frame 11 and the sliding rod 9 to move synchronously. The sliding rod 9 can pull the clamping plate 7 to slide inside the trapezoidal groove 6 through the steel rope connected to its end. At this time, the distance between the two clamping plates 7 located in the trapezoidal groove 6 is increased, so that the steel bars can be conveniently installed on the movable plate 3.

[0036] Furthermore, as another specific implementation of the utility model, the utility model provides a device for quickly detecting the tensile properties of steel bars.

[0037] Specifically, Figure 1-4 It is shown that a trapezoidal groove 6 is provided on the fixing seat 4, and a clamping plate 7 is slidably arranged inside the trapezoidal groove 6, and a side where the clamping plate 7 is in contact with the trapezoidal groove 6 is an inclined structure.

[0038] In the present invention, in order to ensure that the distance between the two clamping plates 7 can be changed when the clamping plates 7 slide on the fixing seat 4 .

[0039] Furthermore, as a specific implementation of the utility model, the utility model provides a device for quickly detecting the tensile properties of steel bars.

[0040] Specifically, Figure 4 It is shown that a side of the clamping plate 7 away from the inner wall of the trapezoidal groove 6 is provided with anti-slip textures.

[0041] In the present invention, in order to increase the friction between the clamping plate 7 and the steel bar.

[0042] Furthermore, as a specific implementation of the utility model, the utility model provides a device for quickly detecting the tensile properties of steel bars.

[0043] Specifically, Figure 1 It is shown that a guide strip 8 is provided on the inner wall of the trapezoidal groove 6 , and a groove matched with the guide strip 8 is provided on the side where the clamping plate 7 is in contact with the trapezoidal groove 6 .

[0044] In the utility model, in order to guide the sliding of the clamping plate 7, the sliding stability of the clamping plate 7 in the trapezoidal groove 6 is improved.

[0045] Furthermore, as a specific implementation of the utility model, the utility model provides a device for quickly detecting the tensile properties of steel bars.

[0046] Specifically, Figure 1 It is shown that guide rails 13 are symmetrically installed on the top of the base 1 , and guide grooves adapted to the guide rails 13 are opened on the movable plate 3 .

[0047] In the utility model, in order to improve the stability of the movable plate 3 sliding on the base 1.

[0048] Furthermore, as a specific implementation of the utility model, the utility model provides a device for quickly detecting the tensile properties of steel bars.

[0049] Specifically, Figure 1 It is shown that a driving motor 16 is fixedly mounted on the side wall of the base 1 , and a driving end of the driving motor 16 is fixedly connected to one end of the bidirectional screw rod 2 .

[0050] In the utility model, in order to facilitate driving the bidirectional screw rod 2 to rotate.

[0051] Furthermore, as a specific implementation of the utility model, the utility model provides a device for quickly detecting the tensile properties of steel bars.

[0052] Specifically, Figure 2 It is shown that two bidirectional screw rods 2 are symmetrically arranged, and a synchronous wheel 14 is fixedly installed on one end of each of the two bidirectional screw rods 2, and a synchronous belt 15 is connected between the two synchronous wheels 14 for transmission.

[0053] In the utility model, the two bidirectional screw rods 2 can be rotated synchronously through the transmission cooperation of the synchronous wheel 14 and the synchronous belt 15. The two bidirectional screw rods 2 can make the movement of the movable plate 3 more stable.

[0054] Working principle: The bidirectional screw rod 2 is driven to rotate by the driving motor 16. The rotation of the bidirectional screw rod 2 can drive the two movable plates 3 connected with the thread to move horizontally relative to or away from each other along the bidirectional screw rod 2. When in use, the two movable plates 3 are first driven to move relative to each other by the bidirectional screw rod 2. As the two movable plates 3 move, the two abutting rods 12 abut against each other. As the movable plates 3 continue to move relative to each other, the abutting rods 12 can move in the direction away from the movable plates 3. When the abutting rods 12 move, they drive the connecting frame 11 and the sliding rod 9 to move synchronously. The sliding rod 9 can pull the clamping plate 7 to slide inside the trapezoidal groove 6 through the steel rope connected to its end. At this time, the distance between the two clamping plates 7 located in the trapezoidal groove 6 increases, and then the steel bar is inserted from the through hole 5 and placed between the two movable plates 3, and then the two-way screw rod is used to 2 drives the two movable plates 3 to move away from each other. As the movable plates 3 move, the two abutting abutting rods 12 separate. At this time, the clamping plate 7 can be pushed to slide to the outside of the trapezoidal groove 6 under the elastic restoring action of the restoring spring 10, thereby reducing the distance between the two clamping plates 7 located in the trapezoidal groove 6, and making the clamping plate 7 close to the outer wall of the steel bar, so that the clamping plate 7 can initially clamp and fix the steel bar. As the two movable plates 3 continue to move away from each other, the clamping plate 7 will be driven to slide in the trapezoidal groove 6 by the tensile force of the steel bar. Since the trapezoidal groove 6 is a trapezoidal structure with one end wide and the other end narrow, the distance between the two clamping plates 7 located in the trapezoidal groove 6 will become closer and closer during the movement of the clamping plate 7. At this time, the clamping plate 7 will clamp the steel bar more and more tightly, and as the two movable plates 3 move away from each other, the steel bar can be stretched.

[0055] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A rapid detection device for tensile properties of steel bars, comprising: A base (1) and a tensile component arranged on the base (1) for performing tensile testing on a steel bar; The invention is characterized in that the stretching assembly comprises a bidirectional screw rod (2) rotatably mounted on a base (1), a movable plate (3) is threadedly connected to the bidirectional screw rod (2), a fixed seat (4) is fixedly mounted on the side wall of the movable plate (3), a through hole (5) for steel bars to pass through is provided between the movable plate (3) and the fixed seat (4), and a clamping plate (7) for clamping and fixing the steel bars is slidably provided on the inner side of the fixed seat (4).

2. A rapid detection device for tensile properties of steel bars according to claim 1, characterized in that: The invention also comprises a connecting component, wherein the connecting component comprises a slide bar (9) slidably connected to the movable plate (3), a return spring (10) is sleeved on the slide bar (9), one end of the return spring (10) is connected to the side wall of the clamp plate (7), and the other end of the return spring (10) is connected to the side wall of the movable plate (3), one end of the slide bar (9) is connected to a steel rope, and the slide bar (9) is fixed to the side wall of the clamp plate (7) by the steel rope, and the other end of the slide bar (9) is fixedly connected to a connecting frame (11), and a resisting rod (12) is fixedly connected to the top of the connecting frame (11).

3. A rapid detection device for tensile properties of steel bars according to claim 1, characterized in that: The fixing seat (4) is provided with a trapezoidal groove (6), the clamping plate (7) is slidably arranged inside the trapezoidal groove (6), and the side of the clamping plate (7) that is in contact with the trapezoidal groove (6) is an inclined surface structure.

4. A rapid detection device for tensile properties of steel bars according to claim 3, characterized in that: The side of the clamping plate (7) away from the inner wall of the trapezoidal groove (6) is provided with anti-slip patterns.

5. A rapid detection device for tensile properties of steel bars according to claim 3, characterized in that: The inner wall of the trapezoidal groove (6) is provided with a guide strip (8), and the side of the clamping plate (7) that is in contact with the trapezoidal groove (6) is provided with a groove that matches the guide strip (8).

6. A rapid detection device for tensile properties of steel bars according to claim 1, characterized in that: A guide rail (13) is symmetrically mounted on the top of the base (1), and a guide groove matching the guide rail (13) is provided on the movable plate (3).

7. A rapid detection device for tensile properties of steel bars according to claim 1, characterized in that: A driving motor (16) is fixedly mounted on the side wall of the base (1), and a driving end of the driving motor (16) is fixedly connected to one end of the bidirectional screw rod (2).

8. A rapid detection device for tensile properties of steel bars according to claim 1, characterized in that: Two bidirectional screw rods (2) are symmetrically arranged, one end of each of the two bidirectional screw rods (2) is fixedly mounted with a synchronous wheel (14), and a synchronous belt (15) is connected between the two synchronous wheels (14) for transmission.

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