Embedded steel bar drawing tester

Abstract

The utility model discloses an embedded steel bar drawing tester which comprises an installation box, a hydraulic rod is fixedly installed in the installation box, one end of a piston rod of the hydraulic rod is rotatably provided with a tension strength tester used for carrying out a drawing test on an embedded steel bar, and the other end of the tension strength tester is fixedly provided with an embedded steel bar clamping and fixing assembly. The clamping end of the embedded steel bar clamping and fixing assembly extends out of the movable opening, the movable opening is formed in the lower surface of the mounting box, the control end of the embedded steel bar clamping and fixing assembly extends out of the sliding opening, and the sliding opening is formed in the upper surface of the mounting box. Through the design of the embedded steel bar clamping and fixing assembly, the tension strength tester and the hydraulic rod, workers do not need to use any tool in the process of carrying out the drawing test on the embedded steel bar, a large amount of mounting and dismounting time is saved, the efficiency of carrying out the drawing test on the embedded steel bar by the workers can be improved, and the working efficiency is improved. And the steel bars with various lengths can be compatibly extended, so that the practicability of the tester is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building material testing equipment, in particular to a pre-buried steel bar pulling tester. Background Art

[0002] The steel bar pull-out tester is a tool used to measure and test the pull-out force of anchor rods, embedded steel bars, etc. in concrete.

[0003] For example, a patent with the national authorized patent announcement number CN208902525U discloses a steel bar pulling tester, which is used in the field of building material testing equipment. It solves the technical problem that when the surface of the substrate is uneven, it is inconvenient to place the pulling instrument and accurate test results cannot be obtained. The main points of its technical solution are: it includes a hydraulic cylinder, a mounting base and a clamp; the hydraulic cylinder is fixedly arranged on the mounting base, the clamp is connected to the piston rod of the hydraulic cylinder, and the hydraulic cylinder and the mounting base are both provided with through holes for steel bars to pass through; an adjustment component is provided on the mounting base, the adjustment component includes a support block hinged to the mounting base, and the support blocks are evenly distributed along the circumferential direction of the mounting base; the support block is slidably connected with an adjustment rod along its length direction; the technical effect is: the steel bar pulling tester can be stably placed on the surface of the substrate through the adjustment component, so as to obtain accurate test results.

[0004] However, when the above-mentioned steel bar pull-out tester performs a pull-out test on the pre-buried steel bars, the operation is relatively complicated, which affects the test efficiency. Utility Model Content

[0005] The utility model aims to provide a pre-buried steel bar pulling tester to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pre-embedded steel bar pulling tester, an installation box, a hydraulic rod fixedly installed in the installation box, one end of the piston rod of the hydraulic rod is rotatably installed with a tensile strength tester for pulling out the pre-embedded steel bar, the other end of the tensile strength tester is fixedly installed with a pre-embedded steel bar clamping assembly, the clamping end of the pre-embedded steel bar clamping assembly extends from a movable opening, the movable opening is opened on the lower surface of the installation box, and the control end of the pre-embedded steel bar clamping assembly extends from a sliding opening, and the sliding opening is opened on the upper surface of the installation box.

[0008] Preferably, an anti-deflection guide plate is fixedly mounted on the lower surface of the installation box, and the anti-deflection guide plate is flush with the clamping end of the embedded steel bar clamping assembly.

[0009] Preferably, a control panel is fixedly mounted on the upper surface of the installation box, and the control panel is electrically connected to the tensile strength tester.

[0010] Preferably, a top support plate is fixedly mounted on one end of the installation box.

[0011] Preferably, the embedded steel bar clamping assembly includes a guide rail plate, which is slidably installed in the sliding opening, and connecting arms are rotatably installed at both ends of the guide rail plate, and a clamping claw is fixedly installed at one end of the connecting arm, and the clamping claw extends from the movable opening.

[0012] Preferably, a traction arm is rotatably mounted on one end of the connecting arm, a pulling plate is rotatably mounted between the other ends of the two groups of traction arms, the pulling plate is fixedly mounted on one end of the tensile strength tester, a rotating rod is rotatably mounted in the guide plate, a thread is provided on the upper end of the rotating rod, and the thread passes through the traction arm.

[0013] Preferably, a rotating handle is slidably mounted on one end of the rotating rod, and the rotating handle extends out from the sliding opening.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the design of the embedded steel bar clamping assembly, the hydraulic rod and the tensile strength tester, when the embedded steel bar is pulled out, the lower top of the installation box can be pressed on the upper surface of the root of the steel bar, so that the anti-deflection guide plate on the lower surface of the installation box is enclosed on both sides of the steel bar, which can avoid the installation box from being deflected during the pull-out test, and the embedded steel bar clamping assembly is set on the outer surface of the steel bar to clamp it, and then the hydraulic rod pulling tensile strength tester can be started, and the pulling tensile strength tester can pull the steel bar through the embedded steel bar clamping assembly, and at the same time, the installation box will touch one end of the wall through the top support plate to resist the pulling force, and at the same time, the tensile strength tester will transmit the pulling force value to the control panel for staff to observe, and it can be stopped when the pulling force reaches the qualified rate, and the staff does not need to use any tools in the process of pulling out the embedded steel bar, the operation is simple and convenient, which can improve the efficiency of the staff in pulling out the embedded steel bar, and it can be compatible with steel bars of various lengths, which increases the practicality of this tester.

[0016] 2. Through the design of the guide plate, pulling plate, connecting arm, clamping claw, rotating rod and rotating handle, after the lower surface of the installation box is placed on the upper end of the steel bar, the clamping claw extending from the movable mouth will also be sleeved on the outer periphery of the steel bar, and then the staff can rotate the rotating handle to drive the threaded part of the rotating rod to pull the pulling plate vertically downward, so that the pulling plate can pull the two sets of traction arms to tilt and rotate and shrink toward the middle, and at the same time, the other end of the traction arm will pull the connecting arm to rotate and close to the center at one end of the guide plate, so that the connecting arm can drive the two sets of clamping claws to move synchronously toward the center to clamp the steel bar, and the assembly operation is completed. And no tools are required, which reduces installation and debugging time and improves work efficiency. The staff can then hold the handle on the upper surface of the installation box and start the hydraulic rod to pull the tensile strength tester. The tensile strength tester can pull the steel bar through the clamp, and during the pulling process, the guide plate can slide to one end in the sliding mouth along with the length of the steel bar pulled out, so that the installation box and the steel bar can be simply combined together and a tensile test can be performed, saving a lot of installation and disassembly time. This can not only improve the efficiency of on-site work, but also help reduce delays caused by equipment assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic top view of the overall structure of the utility model;

[0018] Figure 2 It is a bottom view schematic diagram of the overall structure of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the overall structure side of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the hydraulic rod and the tensile strength tester of the utility model;

[0021] Figure 5 This is a schematic diagram of the control panel structure of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the embedded steel bar clamping assembly of the utility model.

[0023] In the figure: 1. Installation box; 101. Top support plate; 102. Sliding opening; 103. Anti-deflection guide plate; 104. Movable opening; 2. Control panel; 3. Embedded steel bar clamping assembly; 301. Guide plate; 302. Turn bar; 303. Turn handle; 304. Connecting arm; 305. Clamping claw; 306. Pulling arm; 307. Pulling plate; 4. Hydraulic rod; 5. Tensile strength tester. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6 , this embodiment provides the following technical solutions:

[0026] like Figure 1-Figure 5 As shown, a pre-embedded steel bar pulling tester comprises: a mounting box 1, a hydraulic rod 4 is fixedly installed in the mounting box 1, a tensile strength tester 5 for pulling out the pre-embedded steel bar is rotatably installed at one end of the piston rod of the hydraulic rod 4, a pre-embedded steel bar clamping assembly 3 is fixedly installed at the other end of the tensile strength tester 5, the clamping end of the pre-embedded steel bar clamping assembly 3 extends from a movable opening 104, the movable opening 104 is opened on the lower surface of the mounting box 1, and the control end of the pre-embedded steel bar clamping assembly 3 extends from a sliding opening 102, and the sliding opening 102 is opened on the upper surface of the mounting box 1.

[0027] An anti-deflection guide plate 103 is fixedly installed on the lower surface of the installation box 1 , and the anti-deflection guide plate 103 is flush with the clamping end of the embedded steel bar clamping assembly 3 .

[0028] A control panel 2 is fixedly mounted on the upper surface of the installation box 1 , and the control panel 2 is electrically connected to the tensile strength tester 5 .

[0029] A top support plate 101 is fixedly mounted on one end of the installation box 1 .

[0030] Through the design of the embedded steel bar clamping assembly 3, the hydraulic rod 4 and the tensile strength tester 5, when the embedded steel bar is pulled out, the lower top of the installation box 1 can be pressed on the upper surface of the root of the steel bar, so that the anti-deflection guide plate 103 on the lower surface of the installation box 1 is surrounded on both sides of the steel bar, which can avoid the installation box 1 from being deflected during the pull-out test, and the embedded steel bar clamping assembly 3 can be put on the outer surface of the steel bar to clamp it, and then the hydraulic rod 4 can be started to pull the tensile strength tester 5, and the tensile strength tester 5 can be pulled through the embedded steel bar clamping assembly 3 to pull the steel bar. Rebar, and at the same time, the installation box 1 will touch one end of the wall through the top support plate 101 to resist the pulling force, and at the same time, the tensile strength tester 5 will transmit the value of the pulling force to the control panel 2 for the staff to observe. When the pulling force reaches the qualified rate, it can be stopped. In the process of pulling the embedded steel bars, the staff does not need to use any tools, and the operation is simple and convenient, which can improve the efficiency of the staff in pulling the embedded steel bars, and can be compatible with steel bars extended in various lengths, thereby increasing the practicality of this tester.

[0031] like Figure 6 As shown, the embedded steel bar clamping assembly 3 includes a guide plate 301, which is slidably installed in the sliding opening 102, and connecting arms 304 are rotatably installed at both ends of the guide plate 301. A clamping claw 305 is fixedly installed at one end of the connecting arm 304, and the clamping claw 305 extends from the movable opening 104.

[0032] A traction arm 306 is rotatably mounted on one end of the connecting arm 304, a pulling plate 307 is rotatably mounted between the other ends of the two sets of traction arms 306, the pulling plate 307 is fixedly mounted on one end of the tensile strength tester 5, a rotating rod 302 is rotatably mounted in the guide plate 301, a thread is provided on the upper end of the rotating rod 302, and the thread passes through the traction arm 306.

[0033] A rotating handle 303 is slidably mounted on one end of the rotating rod 302 , and the rotating handle 303 extends out from the sliding opening 102 .

[0034] Through the design of the guide plate 301, the pulling plate 307, the connecting arm 304, the clamping claw 305, the rotating rod 302 and the rotating handle 303, after the lower surface of the installation box 1 is placed on the upper end of the steel bar, the clamping claw 305 extending from the movable opening 104 will also be sleeved on the outer periphery of the steel bar, and then the staff can rotate the rotating handle 303 to drive the threaded part of the rotating rod 302 to pull the pulling plate 307 to move vertically downward, so that the pulling plate 307 can pull the two sets of traction arms 306 to tilt and rotate and shrink toward the middle, and at the same time, the other end of the traction arm 306 will pull the connecting arm 304 to rotate and close to the center at one end of the guide plate 301, so that the connecting arm 304 can drive the two sets of clamping claws 305 to move synchronously toward the center. The steel bars are clamped by the clamping operation, that is, the assembly operation is completed without the need to use any tools, thereby reducing the installation and debugging time and improving work efficiency. The staff can then hold the handle on the upper surface of the installation box 1 and start the hydraulic rod 4 to pull the tensile strength tester 5. The tensile strength tester 5 can pull the steel bars through the clamping claws 305, and during the pulling process, the guide plate 301 can slide to one end in the sliding opening 102 along with the length of the steel bars pulled out, so that it can simply combine the installation box 1 with the steel bars and perform a tensile test, saving a lot of installation and disassembly time. This can not only improve the efficiency of on-site work, but also help reduce delays caused by equipment assembly and disassembly.

[0035] According to the above technical scheme, the working steps of this scheme are summarized and sorted out: when testing the pre-buried steel bar pulling, the lower top of the installation box 1 can be pressed on the upper surface of the root of the steel bar, so that the anti-deflection guide plate 103 on the lower surface of the installation box 1 is surrounded on both sides of the steel bar, and at the same time, the clamping claw 305 extending from the movable opening 104 will also be sleeved on the outer periphery of the steel bar, and then the staff can rotate the handle 303 to drive the threaded part of the rotating rod 302 to pull the pulling plate 307 vertically downward, so that the pulling plate 307 can pull the two sets of traction arms 306 to tilt and rotate and shrink toward the middle, and at the same time, the other end of the traction arm 306 will pull the connecting arm 304 on the guide plate One end of 301 rotates toward the center, so that the connecting arm 304 can drive the two sets of clamps 305 to move toward the center synchronously to clamp the steel bar, that is, the assembly operation is completed, and then the hydraulic rod 4 can be started to pull the tensile strength tester 5, and the tensile strength tester 5 can pull the steel bar through the clamp 305, and at the same time, the installation box 1 will touch one end of the wall through the top support plate 101 to resist the pulling force, and at the same time, the tensile strength tester 5 will transmit the pulling force value to the control panel 2 for observation by the staff, and it can be stopped when the pulling force reaches the qualified rate, that is, the pulling test of the embedded steel bar is completed.

[0036] In summary: during the pull-out test of the embedded steel bars, the staff does not need to use any tools, which saves a lot of installation and disassembly time, can improve the efficiency of the staff in the pull-out test of the embedded steel bars, and can be compatible with steel bars extended to various lengths, increasing the practicality of this tester.

[0037] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pre-buried steel bar pull-out tester, characterized in that: include: An installation box (1) is provided, wherein a hydraulic rod (4) is fixedly installed in the installation box (1), a tensile strength tester (5) for performing a pull-out test on pre-embedded steel bars is rotatably installed on one end of the piston rod of the hydraulic rod (4), a pre-embedded steel bar clamping assembly (3) is fixedly installed on the other end of the tensile strength tester (5), a clamping end of the pre-embedded steel bar clamping assembly (3) extends from a movable opening (104), the movable opening (104) is provided on the lower surface of the installation box (1), and a control end of the pre-embedded steel bar clamping assembly (3) extends from a sliding opening (102), the sliding opening (102) is provided on the upper surface of the installation box (1).

2. The pre-buried steel bar pulling tester according to claim 1, characterized in that: An anti-deflection guide plate (103) is fixedly mounted on the lower surface of the installation box (1), and the anti-deflection guide plate (103) is flush with the clamping end of the embedded steel bar clamping assembly (3).

3. The pre-buried steel bar pulling tester according to claim 1, characterized in that: A control panel (2) is fixedly mounted on the upper surface of the installation box (1), and the control panel (2) is electrically connected to the tensile strength tester (5).

4. The pre-buried steel bar pulling tester according to claim 3, characterized in that: A top support plate (101) is fixedly mounted on one end of the installation box (1).

5. The pre-buried steel bar pulling tester according to claim 1, characterized in that: The embedded steel bar clamping assembly (3) comprises a guide rail plate (301), the guide rail plate (301) is slidably mounted in the sliding opening (102), connecting arms (304) are rotatably mounted at both ends of the guide rail plate (301), a clamping claw (305) is fixedly mounted at one end of the connecting arm (304), and the clamping claw (305) extends from the movable opening (104).

6. The pre-buried steel bar pulling tester according to claim 5, characterized in that: A traction arm (306) is rotatably mounted on one end of the connecting arm (304), a pulling plate (307) is rotatably mounted between the other ends of the two groups of traction arms (306), the pulling plate (307) is fixedly mounted on one end of the tensile strength tester (5), a rotating rod (302) is rotatably mounted in the guide plate (301), the upper end of the rotating rod (302) is provided with a thread, and the thread passes through the traction arm (306).

7. The pre-buried steel bar pulling tester according to claim 5, characterized in that: A rotating handle (303) is slidably mounted on one end of the rotating rod (302), and the rotating handle (303) extends out from the sliding opening (102).

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