Reinforcing steel bar stretching detection device with anti-falling function

Abstract

The utility model discloses a reinforcing steel bar stretching detection device with an anti-falling function, which comprises a working table, a driving mechanism is arranged at the top end of the working table, and a first clamping mechanism and a second clamping mechanism which are used for respectively fixing and clamping two ends of a reinforcing steel bar are arranged on the driving mechanism. The driving mechanism is used for driving the first clamping mechanism and the second clamping mechanism to linearly move in opposite directions in the Y-axis direction, mounting plates are arranged on the first clamping mechanism and the second clamping mechanism correspondingly, and electric push rods are mounted on the outer walls of the two sides of each mounting plate correspondingly. One end of the electric push rod penetrates through the outer wall of the mounting plate and is connected with a clamping block through a mounting block, and a first groove is formed in the center of the inner side wall of the clamping block. According to the utility model, not only can the steel bar be effectively prevented from falling off in the stretching detection process, but also the clamping block can be conveniently disassembled, assembled and replaced by a worker, and the disassembly and assembly operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to reinforcing steel bar tensile detection technical field, concretely is a reinforcing steel bar tensile detection device with anti -drop function. BACKGROUND

[0002] Reinforcing steel bar is an important component in modern building structure, it has the characteristics of high strength, high rigidity and high durability, can effectively improve the bearing capacity and stability of building structure, in building engineering, the dosage of reinforcing steel bar is huge, thus its quality is directly related to the safety and service life of building structure, the purpose of reinforcing steel bar tensile detection is to assess the quality and applicability of reinforcing steel bar through detecting the physical properties of reinforcing steel bar, including tensile strength, yield point and elastic modulus etc., through tensile detection, whether the strength of reinforcing steel bar meets the design requirement can be judged, reinforcing steel bar tensile detection usually adopts laboratory detection method, laboratory detection refers to carrying out tensile, compression, bending and various physical property tests to reinforcing steel bar in the laboratory to obtain accurate data.

[0003] Through the search, patent announcement No. CN212904263U discloses a reinforcing steel bar tensile strength detection device, relating to reinforcing steel bar strength detection technical field, the main purpose is to provide a reinforcing steel bar tensile strength detection device capable of blocking metal chips from entering the gap between the moving part and the chuck. The main technical scheme of the utility model is: a reinforcing steel bar tensile strength detection device, comprising: a base; a lifting component, a power component is arranged on the base, a rotating component is rotationally connected to the power component; a clamping component, comprising a fixed clamping component and a movable clamping component, the movable clamping component is rotationally connected to the rotating component, the fixed clamping component comprises a fixed block, a connecting protrusion, a clamping head, a limiting component, a first shielding component and a second shielding component, the middle part of the first shielding component covers the gap between the first connecting protrusion and the first clamping head, and the middle part of the second shielding component covers the gap between the second connecting protrusion and the second clamping head. The utility model is mainly used for detecting the tensile strength of reinforcing steel bar.

[0004] The existing reinforcing steel bar tensile detection device fixes and clamps the two ends of the reinforcing steel bar through the clamping structure and performs tensile operation on the reinforcing steel bar. During the tensile process, the reinforcing steel bar and the clamping structure may become loose or even fall off, affecting the safety of the reinforcing steel bar tensile detection by the staff. Therefore, a reinforcing steel bar tensile detection device with anti -drop function is designed. UTILITY MODEL CONTENTS

[0005] In view of the defects or deficiencies of the reinforcing steel bar tensile detection device, the utility model aims to provide a reinforcing steel bar tensile detection device with anti -drop function, which can effectively prevent the reinforcing steel bar from falling off during the tensile detection process, and facilitate the staff to disassemble and replace the clamping block.

[0006] To achieve the above-mentioned utility model purposes, the utility model adopts the following technical schemes:

[0007] The utility model provides a steel bar tensile detection device with anti -drop function, including the work head, the top of work head is provided with drive mechanism, be provided with first clamping mechanism and second clamping mechanism for fixing clamping respectively to the both ends of steel bar on drive mechanism, and drive mechanism is used for driving first clamping mechanism and second clamping mechanism in Y axle direction with opposite direction linear motion;

[0008] The first clamping mechanism and the second clamping mechanism are provided with the mounting plate, and the electric push rod is installed on the both sides of the outer wall of the mounting plate. One end of the electric push rod penetrates the outer wall of the mounting plate and is connected with the clamping block through the mounting block.

[0009] The first recess is formed in the center of the inner side wall of the clamping block. The second recess is formed in the both sides of the inner side wall of the clamping block. The wedge-shaped block is arranged on the outer wall of one side of the clamping block. The other end of the wedge-shaped block is installed in the wedge-shaped groove. The wedge-shaped groove is formed in the outer wall of one side of the mounting block. The threaded holes are formed above and below the end wall of one end of the mounting block. The threaded column is arranged in the threaded hole of the mounting block. The threaded column is arranged on the end wall of one end of the rotary adjusting plate. The limit plate is sleeved outside the outer wall of the threaded column.

[0010] Preferably, the gap is formed between the outer wall of the wedge-shaped block and the groove wall of the wedge-shaped groove.

[0011] Preferably, the reduction motor is arranged on the drive mechanism. The reduction motor is installed on the top of the second mounting bracket. The second mounting bracket is installed on the top of the first mounting bracket. The first mounting bracket is installed on the rear end of the top of the workbench. The output shaft of the reduction motor penetrates the top of the second mounting bracket and is connected with the rotating shaft through the shaft coupling. The bottom end of the rotating shaft penetrates the bearing on the top of the first mounting bracket and is installed in the bearing seat. The bearing seat is arranged on the top of the workbench.

[0012] Preferably, the first moving plate and the second moving plate are arranged above and below the outer wall of the rotating shaft respectively. The left-handed thread and the right-handed thread are arranged above and below the outer wall of the rotating shaft respectively. The threaded holes are formed in the end wall center positions of the first moving plate and the second moving plate.

[0013] The slide rails are arranged on the both sides of the front end wall of the first mounting bracket.

[0014] Preferably, the left-handed thread on the outer wall of the rotating shaft is in threaded engagement connection with the threaded hole on the first moving plate. The right-handed thread on the outer wall of the rotating shaft is in threaded engagement connection with the threaded hole on the second moving plate.

[0015] Preferably, the two sides of the rear end face of the mounting plate are provided with connecting columns, the other end of the connecting column is provided with a sliding block, the other end of the sliding block is arranged on a sliding rail, and the sliding block and the sliding rail are in sliding connection.

[0016] Preferably, the mounting plate on the first clamping mechanism is arranged on the front end wall of the first moving plate, and the mounting plate on the second clamping mechanism is arranged on the front end wall of the second moving plate.

[0017] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0018] 1. In the utility model, through the cooperation of the clamping block, the first groove and the second groove, when the two ends of the reinforcing steel bar are fixed and clamped, the rib and the threaded rib on the reinforcing steel bar are located in the first groove and the second groove respectively, the electric push rod on the first clamping mechanism and the second clamping mechanism is started, and the two clamping blocks on the first clamping mechanism and the second clamping mechanism respectively fix and clamp the two ends of the reinforcing steel bar, when the driving mechanism is started to stretch and detect the reinforcing steel bar, the threaded rib on the reinforcing steel bar is located in the second groove, and the second groove on the clamping block limits the threaded rib on the reinforcing steel bar in the stretching direction during the stretching of the reinforcing steel bar, so that the loosening or even falling off of the reinforcing steel bar during the stretching is avoided, and the safety is improved.

[0019] 2. In the utility model, when the staff needs to replace the clamping block of different models, the staff only needs to rotate the rotary adjusting plate and remove the extrusion force of the rotary adjusting plate on the limiting plate, rotates the limiting plate by a certain angle, and then removes the wedge-shaped block on the clamping block from the wedge-shaped groove on the mounting block, when the staff needs to install the clamping block on the mounting block, the staff moves the wedge-shaped block on the clamping block into the wedge-shaped groove on the mounting block, rotates the limiting plate to limit the wedge-shaped block, rotates the rotary adjusting plate to cause a certain extrusion force of the rotary adjusting plate on the limiting plate, and the limiting plate limits the wedge-shaped block at this time, the installation of the clamping block is completed, so that the utility model is convenient for the staff to disassemble and replace the clamping block, and the disassembly and assembly operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide further understanding of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0021] Figure 1 is a whole three-dimensional structure schematic diagram of the present application Figure 1 .

[0022] Figure 2 is a whole three-dimensional structure schematic diagram of the present application Figure 2 .

[0023] Figure 3 is a structure schematic diagram of the first clamping mechanism and the second clamping mechanism of the present application Figure 1 .

[0024] Figure 4 is a structure schematic diagram of the first clamping mechanism and the second clamping mechanism of the present application Figure 2 .

[0025] Figure 5 is an explosion structure schematic diagram of the connecting structure between the mounting block and the clamping block of the present application Figure 1 .

[0026] Figure 6 is an explosion structure schematic diagram of the connecting structure between the mounting block and the clamping block of the present application Figure 2 .

[0027] Figure 7 is a structure schematic diagram of the driving mechanism of the present application.

[0028] In the drawings:

[0029] 100, driving mechanism; 110, speed reducer motor; 120, first mounting frame; 130, second mounting frame; 140, sliding rail; 150, first moving plate; 160, rotating shaft; 170, second moving plate; 180, bearing seat;

[0030] 200, first clamping mechanism; 210, mounting plate; 220, electric push rod; 230, mounting block; 240, clamping block; 250, connecting column; 260, sliding block;

[0031] 231, wedge-shaped groove; 232, threaded column; 233, rotating adjusting plate; 234, limiting plate;

[0032] 241, wedge-shaped block; 242, first recess; 243, second recess;

[0033] 300, second clamping mechanism;

[0034] 400, workbench. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0037] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] like Figures 1-7 As shown, a rebar tensile testing device with anti-detachment function includes a workbench 400. A drive mechanism 100 is provided at the top of the workbench 400. The drive mechanism 100 is provided with a first clamping mechanism 200 and a second clamping mechanism 300 for fixing and clamping the two ends of the rebar respectively. The drive mechanism 100 is used to drive the first clamping mechanism 200 and the second clamping mechanism 300 to move linearly in opposite directions in the Y-axis direction.

[0039] Both the first clamping mechanism 200 and the second clamping mechanism 300 are provided with mounting plates 210. Electric push rods 220 are installed on both outer walls of the mounting plates 210. One end of the electric push rod 220 passes through the outer wall of the mounting plate 210 and is connected to the clamping block 240 through the mounting block 230. When the electric push rod 220 is started, it can drive the mounting block 230 and the clamping block 240 to move linearly in a certain direction.

[0040] A first groove 242 is provided at the center of the inner sidewall of the clamping block 240. The first groove 242 is adapted to the ribs on the reinforcing bar. A second groove 243 is provided on both sides of the inner sidewall of the clamping block 240. The second groove 243 is adapted to the threaded bars or crescent bars or other protruding bars on the reinforcing bar. A wedge block 241 is provided on one outer wall of the clamping block 240. The other end of the wedge block 241 is installed in the wedge groove 231, and the wedge groove 231 is provided on one outer wall of the mounting block 230. Threaded holes are provided above and below one end wall of the mounting block 230. Threaded posts 232 are provided in the threaded holes of the mounting block 230. The threaded posts 232 are provided on the end wall of one end of the rotating adjustment plate 233. A limiting plate 234 is sleeved on the outer side of the outer wall of the threaded post 232. The limiting plate 234 is provided to limit the wedge block 241 in the wedge groove 231.

[0041] The outer wall of the wedge-shaped block 241 is in clearance fit with the groove wall of the wedge-shaped groove 231. The outer wall of the wedge-shaped block 241 is in clearance fit with the groove wall of the wedge-shaped groove 231, so that the worker can move the wedge-shaped block 241 into the wedge-shaped groove 231 or move the wedge-shaped block 241 out of the wedge-shaped groove 231.

[0042] The driving mechanism 100 is provided with a speed reducer motor 110. The speed reducer motor 110 is installed at the top end of the second mounting frame 130, and the second mounting frame 130 is installed at the top end of the first mounting frame 120. The first mounting frame 120 is installed at the rear end of the top of the workbench 400. The output shaft of the speed reducer motor 110 penetrates the top end of the second mounting frame 130 and is connected with the rotating shaft 160 through a shaft coupling. The bottom end of the rotating shaft 160 penetrates the bearing on the top end of the first mounting frame 120 and is installed in the bearing seat 180. The bearing seat 180 is arranged at the top end of the workbench 400. When the speed reducer motor 110 is started, the rotating shaft 160 is driven to rotate forward or reverse.

[0043] The first moving plate 150 and the second moving plate 170 are arranged above and below the outer wall of the rotating shaft 160, respectively. The left-hand thread and the right-hand thread are arranged above and below the outer wall of the rotating shaft 160, respectively. Thread holes are formed in the center positions of the end walls of the first moving plate 150 and the second moving plate 170.

[0044] The front end wall of the first mounting frame 120 is provided with slide rails 140 on both sides.

[0045] The left-hand thread on the outer wall of the rotating shaft 160 is in threaded engagement connection with the thread hole on the first moving plate 150. The right-hand thread on the outer wall of the rotating shaft 160 is in threaded engagement connection with the thread hole on the second moving plate 170. When the rotating shaft 160 rotates forward or reverse, the first moving plate 150 and the second moving plate 170 move linearly on the outer wall of the rotating shaft 160. The moving directions of the first moving plate 150 and the second moving plate 170 are opposite, so that the first clamping mechanism 200 and the second clamping mechanism 300 can move linearly in opposite directions in the Y-axis direction.

[0046] The connecting columns 250 are installed on both sides of the rear end face of the mounting plate 210. The other ends of the connecting columns 250 are provided with sliding blocks 260. The other ends of the sliding blocks 260 are arranged on the slide rails 140. The sliding blocks 260 and the slide rails 140 are in sliding connection. The sliding blocks 260 and the slide rails 140 not only play a limiting and guiding role in the movement of the first clamping mechanism 200 and the second clamping mechanism 300, but also enhance the stability of the first clamping mechanism 200 and the second clamping mechanism 300 during movement.

[0047] The mounting plate 210 on the first clamping mechanism 200 is mounted on the front end wall of the first moving plate 150, and the mounting plate 210 on the second clamping mechanism 300 is mounted on the front end wall of the second moving plate 170.

[0048] Working principle: in use, when the two ends of the steel bar are fixed and clamped by the device, the worker makes the rib and the threaded rib on the steel bar respectively located in the first groove 242 and the second groove 243, and then starts the electric push rod 220 on the first clamping mechanism 200 and the second clamping mechanism 300, so that the two clamping blocks 240 on the first clamping mechanism 200 and the two clamping blocks 240 on the second clamping mechanism 300 respectively fix and clamp the two ends of the steel bar, when the worker starts the driving mechanism 100 to detect the stretching of the steel bar, the threaded rib on the steel bar is located in the second groove 243, and the second groove 243 on the clamping block 240 plays a limiting role on the threaded rib on the steel bar in the stretching direction, so as to avoid the loosening or even falling off of the steel bar during the stretching process, when the worker needs to replace the clamping block 240 of different models, the worker only needs to rotate the rotary adjusting plate 233 and remove the extrusion force of the rotary adjusting plate 233 on the limiting plate 234, then the worker rotates the limiting plate 234 by a certain angle, and then the worker can move the wedge-shaped block 241 on the clamping block 240 out of the wedge-shaped groove 231 on the mounting block 230, when the worker needs to install the clamping block 240 on the mounting block 230, the worker moves the wedge-shaped block 241 on the clamping block 240 into the wedge-shaped groove 231 on the mounting block 230, then the worker rotates the limiting plate 234 and makes the limiting plate 234 in the limiting direction of the wedge-shaped block 241, then the worker rotates the rotary adjusting plate 233 and makes the rotary adjusting plate 233 cause a certain extrusion force on the limiting plate 234, at this time, the limiting plate 234 plays a limiting role on the wedge-shaped block 241, and the installation of the clamping block 240 is completed, so that the worker can conveniently disassemble and replace the clamping block 240.

[0049] The preferred embodiments of the utility model are described above, and the utility model is not limited to the above. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A rebar tensile testing device with anti-detachment function, comprising a workbench (400), characterized in that: The top of the workbench (400) is provided with a drive mechanism (100), and the drive mechanism (100) is provided with a first clamping mechanism (200) and a second clamping mechanism (300) for fixing and clamping the two ends of the steel bar respectively. The drive mechanism (100) is used to drive the first clamping mechanism (200) and the second clamping mechanism (300) to move linearly in opposite directions in the Y-axis direction. The first clamping mechanism (200) and the second clamping mechanism (300) are both provided with mounting plates (210). Electric push rods (220) are installed on both outer walls of the mounting plates (210). One end of the electric push rod (220) passes through the outer wall of the mounting plate (210) and is connected to the clamping block (240) through the mounting block (230). The clamping block (240) has a first groove (242) at the center of its inner sidewall. The clamping block (240) has a second groove (243) on both sides of its inner sidewall. A wedge block (241) is provided on one side of the outer wall of the clamping block (240). The other end of the wedge block (241) is installed in a wedge groove (231), and the wedge groove (231) is located on one side of the outer wall of the mounting block (230). Threaded holes are provided above and below one end wall of the mounting block (230), and a threaded post (232) is provided in the threaded hole on the mounting block (230). The threaded post (232) is located on the end wall of one end of the rotating adjustment plate (233), and a limiting plate (234) is sleeved on the outer side of the outer wall of the threaded post (232).

2. The rebar tensile testing device with anti-detachment function according to claim 1, characterized in that: The outer wall of the wedge block (241) and the groove wall of the wedge groove (231) are in clearance fit.

3. The rebar tensile testing device with anti-detachment function according to claim 1, characterized in that: The drive mechanism (100) is equipped with a geared motor (110), which is mounted on the top of the second mounting bracket (130), and the second mounting bracket (130) is mounted on the top of the first mounting bracket (120). The first mounting bracket (120) is mounted on the rear end of the top of the workbench (400). The output shaft of the geared motor (110) passes through the top of the second mounting bracket (130) and is connected to the rotating shaft (160) through a coupling. The bottom end of the rotating shaft (160) passes through the bearing on the top of the first mounting bracket (120) and is mounted in the bearing seat (180). The bearing seat (180) is located on the top of the workbench (400).

4. The rebar tensile testing device with anti-detachment function according to claim 3, characterized in that: The upper and lower sides of the outer wall of the rotating shaft (160) are respectively provided with a first moving plate (150) and a second moving plate (170). The upper and lower sides of the outer wall of the rotating shaft (160) are respectively provided with a left-hand thread and a right-hand thread. The center of the end wall of the first moving plate (150) and the second moving plate (170) are both provided with threaded holes. The first mounting bracket (120) has slide rails (140) on both sides of its front wall.

5. The rebar tensile testing device with anti-detachment function according to claim 4, characterized in that: The left-hand thread on the outer wall of the rotating shaft (160) is threadedly engaged with the threaded hole on the first moving plate (150), and the right-hand thread on the outer wall of the rotating shaft (160) is threadedly engaged with the threaded hole on the second moving plate (170).

6. The rebar tensile testing device with anti-detachment function according to claim 1, characterized in that: Connecting posts (250) are installed on both sides of the rear end face of the mounting plate (210). A slider (260) is installed on the other end of the connecting post (250). The other end of the slider (260) is set on the slide rail (140), and the slider (260) and the slide rail (140) are slidably connected.

7. The rebar tensile testing device with anti-detachment function according to claim 1, characterized in that: The mounting plate (210) on the first clamping mechanism (200) is mounted on the front wall of the first moving plate (150), and the mounting plate (210) on the second clamping mechanism (300) is mounted on the front wall of the second moving plate (170).

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