Device for detecting pulling resistance of embedded steel bars in concrete structure engineering

Abstract

The utility model belongs to the field of detection, particularly relates to a device for detecting the pulling resistance of an embedded steel bar in concrete structure engineering, and provides the following scheme aiming at the problems that the existing embedded steel bar anchorage device is troublesome in disassembly process and can cause the jumping of parts in the disassembly process to increase the risk of personnel injury. A rocker is movably arranged at the top of the manual oil pump; a handle is fixedly arranged on one side of the hydraulic oil cylinder; the two ends of the connecting pipe are fixedly communicated with connectors; the fixing assembly is arranged on the hydraulic oil cylinder and is used for detecting and limiting the steel bar planting position; and the auxiliary assembly is arranged on the fixing assembly and used for dismantling the used fixing assembly. Through the arrangement of the auxiliary assembly, the embedded steel bar anchorage device can be conveniently disassembled, the disassembling process is easier, the risk that in the disassembling process, parts jump to cause personnel injury is reduced, the working time can be saved, and the working efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of rebar performance testing technology, and in particular to a device for testing the pull-out performance of rebar in concrete structure engineering. Background Technology

[0002] Rebar anchoring, also known as rebar planting, is a connection technology in seismic reinforcement of building structures that uses structural adhesive to lock and hold the rebar in place. It is the best choice for structural rebar anchoring reinforcement and heavy load fastening applications. Chemical rebar anchoring involves drilling holes in substrates such as concrete, walls, and rocks, and then injecting high-strength anchoring adhesive. After installation, the strength between the anchored rebar and the planting carrier needs to be tested using a testing device.

[0003] Current equipment for testing the pull-out resistance of rebar anchors in concrete structures relies on tools such as pliers or pry bars to find a fulcrum and apply force when disassembling the anchors. This process is cumbersome and can cause parts to fly off, increasing the risk of injury to personnel. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as cumbersome disassembly processes that can lead to components flying off during removal, increasing the risk of injury to personnel. The invention proposes a device for testing the pull-out resistance of rebar in concrete structure engineering.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for testing the pull-out performance of rebar in concrete structures includes:

[0007] A manual oil pump, wherein a rocker arm is movably mounted on the top of the manual oil pump, and an oil filling port is provided on the top of the manual oil pump;

[0008] A hydraulic cylinder, wherein a handle is fixedly provided on one side of the hydraulic cylinder;

[0009] A connecting pipe, both ends of which are fixedly connected to connectors, and the hydraulic cylinder and the manual oil pump are fixedly connected through the connectors of the connecting pipe;

[0010] A fixing component is mounted on a hydraulic cylinder and used to detect and limit the position of the rebar.

[0011] An auxiliary component is installed on the fixed component and is used to remove the fixed component after use.

[0012] In one possible design, the fixing assembly includes an anchor sleeve placed on top of the output end of the hydraulic cylinder, with two symmetrically arranged clamping blocks placed at the opening of the anchor sleeve, and the outer ring of each clamping block having a snap-fit ​​groove.

[0013] In one possible design, the auxiliary component includes a sleeve that can be disengaged and snapped into the outer ring snap groove of the two clamping blocks. A fixing rod is fixedly disposed on the top of the sleeve, a limit block is fixedly disposed on the top of the fixing rod, a sliding hammer is slidably disposed on the outside of the fixing rod, and anti-slip stripes are disposed on the outside of the sliding hammer.

[0014] In one possible design, the hydraulic cylinder is provided with a reaction support pad, and two limiting slots are symmetrically opened on the top two sides of the reaction support pad. Two limiting pins are symmetrically fixed on the bottom two sides of the hydraulic cylinder, and the limiting pins are adapted to the limiting slots.

[0015] In one possible design, a pressure relief switch is provided on one side of the manual oil pump, and a digital pressure gauge is fixedly installed on the top of the connection between the manual oil pump and the connecting pipe.

[0016] In one possible design, four rectangular brackets are fixedly installed on both sides of the manual oil pump, and rubber pads are fixedly installed at the bottom of each of the four brackets. A handle is fixedly installed on the top of the manual oil pump.

[0017] In this application, upon initial use, the reaction support pad is engaged with the limit pin on the hydraulic cylinder via the limit slot. Then, the inspector grasps the handle and places the reaction support pad and hydraulic cylinder around the rebar. The connecting pipe is then connected to the manual oil pump via a connector, and the other end of the connecting pipe is connected to the hydraulic cylinder via the connector. The crank is then pressed, causing the output end of the hydraulic cylinder to extend 1-2 cm. The anchor sleeve is then placed around the rebar and aligned with the output end of the hydraulic cylinder. Two clamping blocks are then placed around the rebar and inside the anchor sleeve to fix and limit the connection between the anchor sleeve and the rebar. Pressing the crank then pressurizes the manual oil pump. During this pressurization process, the hydraulic cylinder is pressurized through the connecting pipe, causing the output end of the hydraulic cylinder to extend. Simultaneously with the extension of the hydraulic cylinder's output end... The anchor sleeve is pressed against and pushed to test the pull-out resistance of the rebar. The digital pressure gauge is observed. When the pressure reaches the set pressure, the rocker arm is stopped, and the pressure relief switch is turned to release the pressure inside the manual oil pump and hydraulic cylinder, causing the output end of the hydraulic cylinder to retract. The auxiliary component is then placed on the outside of the rebar, and the ferrule is inserted into the locking groove of the clamping block. The sliding hammer is then slid along the fixed rod towards the ferrule. Once it reaches the position, the sliding hammer is held and pulled backward until it hits the limit block. The impact force generated when the sliding hammer hits the limit block creates a pulling force on the clamping block through the ferrule, pulling the two clamping blocks out of the anchor sleeve. The auxiliary component, clamping block, and anchor sleeve are then removed from the rebar in sequence. Finally, the hydraulic cylinder and reaction support pad are removed from the rebar to complete the pull-out resistance test of the rebar.

[0018] This utility model has the following beneficial effects:

[0019] In this invention, by setting a fixing component, the anchor sleeve is fitted outside the rebar and fits against the output end of the hydraulic cylinder. Then, two clamping blocks are fitted outside the rebar and placed inside the anchor sleeve to fix and limit the anchor sleeve and the rebar. This can adapt to the applied tensile load and ensure that it does not loosen or fail. At the same time, it can limit the position of the hydraulic cylinder and ensure the stability of the rebar during the test.

[0020] In this utility model, by setting an auxiliary component, the ferrule is inserted into the snap-fit ​​groove of the clamping block. Then, the sliding hammer slides on the fixed rod in the direction of the ferrule. After reaching the position, the sliding hammer is held and pulled backward until it hits the limiting block. When the sliding hammer hits the limiting block, it generates an impact force, which in turn generates a pulling force on the clamping block through the ferrule, pulling the two clamping blocks out from the inside of the anchor sleeve. This facilitates the disassembly of the rebar anchor, makes the disassembly process easier, reduces the risk of personnel injury caused by parts flying during disassembly, and can improve assembly efficiency, save working time and improve work efficiency.

[0021] This utility model, through the setting of auxiliary components, facilitates the disassembly of rebar anchorages, making the disassembly process easier, reducing the risk of personnel injury caused by flying parts during disassembly, and saving working time and improving work efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a device for testing the pull-out performance of rebar in concrete structure engineering, as proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the overall disassembled structure of a device for testing the pull-out performance of rebar in concrete structure engineering proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of a manual oil pump structure for a device for testing the pull-out resistance of rebar in concrete structure engineering, as proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the auxiliary component structure of a device for testing the pull-out performance of rebar in concrete structure engineering, as proposed in this utility model.

[0026] In the diagram: 1. Manual oil pump; 101. Handle; 102. Bracket; 1021. Rubber pad; 103. Oil filling port; 104. Rocker arm; 105. Pressure relief switch; 106. Digital pressure gauge; 2. Hydraulic cylinder; 201. Handle; 202. Limit pin; 3. Connecting pipe; 301. Connector; 4. Anchor sleeve; 5. Clamping block; 501. Snap-fit ​​groove; 6. Sleeve; 7. Fixing rod; 8. Sliding hammer; 9. Limit block; 10. Reaction support pad; 1001. Limit slot. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1

[0029] Reference Figure 1-4 A detection device, comprising:

[0030] Manual oil pump 1, with a rocker arm 104 movably mounted on the top of the manual oil pump 1, and an oil filling port 103 mounted on the top of the manual oil pump 1;

[0031] Hydraulic cylinder 2, with a handle 201 fixedly installed on one side;

[0032] Connecting pipe 3, both ends of connecting pipe 3 are fixedly connected to connectors 301, and hydraulic cylinder 2 and manual oil pump 1 are fixedly connected through connectors 301 of connecting pipe 3;

[0033] A fixing component is mounted on the hydraulic cylinder 2 and is used to detect and limit the position of the rebar.

[0034] An auxiliary component is installed on the fixed component and is used to remove the fixed component after use.

[0035] The above technical solution facilitates the connection between the hydraulic cylinder 2 and the manual oil pump 1 through the connector 301, while also enabling easy disassembly and transportation. By pressing the rocker arm 104 through the hydraulic cylinder 2, manual oil pump 1, and connecting pipe 3, the manual oil pump 1 is pressurized. During this pressurization process, the hydraulic cylinder 2 is pressurized through the connecting pipe 3, causing the output end of the hydraulic cylinder 2 to extend. Simultaneously, the output end of the hydraulic cylinder 2 abuts against and pushes against the anchor sleeve 4, thereby testing the pull-out resistance of the rebar. The fixed components can adapt to the applied tensile load and prevent loosening or failure. They also limit the position of the hydraulic cylinder 2, ensuring the stability of the rebar during testing. The auxiliary components facilitate the disassembly of the rebar anchor, making the disassembly process easier, reducing the risk of injury from flying parts during disassembly, and saving working time and improving work efficiency.

[0036] Reference Figure 2 and Figure 4 The fixing component includes an anchor sleeve 4 placed on top of the output end of the hydraulic cylinder 2. Two clamping blocks 5 are placed symmetrically at the opening of the anchor sleeve 4. The outer ring of the two clamping blocks 5 is provided with a snap-fit ​​groove 501.

[0037] The above technical solution achieves the following: by setting the anchor sleeve 4 and two clamping blocks 5, the anchor sleeve 4 is placed on the outside of the rebar and fits against the output end of the hydraulic cylinder 2. Then, the two clamping blocks 5 are placed on the outside of the rebar and placed inside the anchor sleeve 4 to fix and limit the anchor sleeve 4 and the rebar. This can adapt to the applied tensile load and ensure that it does not loosen or fail. At the same time, it can limit the position of the hydraulic cylinder 2 and ensure the stability of the rebar during the test.

[0038] Reference Figure 2 and Figure 4 The auxiliary component includes a sleeve 6 that can be disengaged and snapped into the outer ring snap groove 501 of the two clamping blocks 5. A fixing rod 7 is fixedly installed on the top of the sleeve 6, and a limit block 9 is fixedly installed on the top of the fixing rod 7. A sliding hammer 8 is slidably installed on the outside of the fixing rod 7, and anti-slip stripes are provided on the outside of the sliding hammer 8.

[0039] The above technical solution allows the clamping sleeve 6 to be inserted into the locking groove 501 of the clamping block 5 by setting the fixed rod 7, the sliding hammer 8, and the limiting block 9. Then, the sliding hammer 8 slides on the fixed rod 7 in the direction of the clamping sleeve 6. After reaching the position, the sliding hammer 8 is grasped and pulled backward until it hits the limiting block 9. When the sliding hammer 8 hits the limiting block 9, it generates an impact force, which in turn generates a pulling force on the clamping block 5 through the clamping sleeve 6, pulling the two clamping blocks 5 out of the inside of the anchor sleeve 4. This facilitates the disassembly of the rebar anchor, making the disassembly process easier, reducing the risk of personnel injury caused by parts flying during disassembly, improving assembly efficiency, saving working time and improving work efficiency. The anti-slip stripes increase the friction between the user's hand and the sliding hammer 8, preventing the hand from slipping off the sliding hammer 8 and causing unnecessary injury.

[0040] The hydraulic cylinder 2 is equipped with a reaction support pad 10. The top two sides of the reaction support pad 10 are symmetrically provided with two limit slots 1001. The bottom two sides of the hydraulic cylinder 2 are symmetrically fixed with two limit pins 202. The limit pins 202 are adapted to the limit slots 1001.

[0041] The above technical solution can achieve the supporting effect by setting the reaction support pad 10. At the same time, it will generate a reverse force during the operation and can transmit the pressure, thereby achieving the purpose of balancing the structure and ensuring its stability. By setting the limit pin 202 and the limit slot 1001, the reaction support pad 10 is connected to the limit pin 202 on the hydraulic cylinder 2 through the limit slot 1001, which facilitates the installation of the two.

[0042] Reference Figure 3 A pressure relief switch 105 is provided on one side of the manual oil pump 1, and a digital pressure gauge 106 is fixedly installed at the top of the connection between the manual oil pump 1 and the connecting pipe 3.

[0043] The above technical solution can facilitate the release of pressure between the manual oil pump 1 and the hydraulic cylinder 2 by setting the pressure relief switch 105, and facilitate the viewing of the pressure applied by the manual oil pump 1 and the hydraulic cylinder 2 by setting the digital pressure gauge 106.

[0044] This application can be used in the field of testing the pull-out performance of rebar in concrete structure engineering, and can also be used in other fields applicable to this application.

[0045] Example 2

[0046] An improvement upon Example 1: A device for testing the pull-out performance of rebar in concrete structures, which applies to the technical field of devices for testing the pull-out performance of rebar in concrete structures, see reference. Figure 1-3The manual oil pump 1 has four rectangular brackets 102 fixedly installed on both sides, and rubber pads 1021 are fixedly installed at the bottom of each of the four brackets 102. A handle 101 is fixedly installed on the top of the manual oil pump 1.

[0047] The above technical solution provides mounting holes on all four brackets 102, allowing the manual oil pump 1 to be fixed as needed. Each of the four rubber pads 1021 has mounting holes corresponding to the mounting holes on the four brackets 102, facilitating the fixing of the manual oil pump 1. The rubber pads 1021 also help to keep the bottom of the manual oil pump 1 away from the ground, preventing friction and damage, and providing a buffering effect.

[0048] However, as is well known to those skilled in the art, the working principles and wiring methods of the manual oil pump 1, the digital pressure gauge 106, and the hydraulic cylinder 2 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the pull-out performance of a planted bar in a concrete structure engineering, characterized in that, Include: Manual oil pump (1), the top of the manual oil pump (1) is movably provided with a rocker (104), and the top of the manual oil pump (1) is provided with an oil filling port (103); Hydraulic oil cylinder (2), one side of the hydraulic oil cylinder (2) is fixedly provided with a handle (201); The connecting pipe (3) is fixedly communicated with the connecting head (301) at both ends, and the hydraulic oil cylinder (2) and the manual oil pump (1) are fixedly communicated through the connecting head (301) of the connecting pipe (3); The fixing assembly is arranged on the hydraulic oil cylinder (2) and is used for detecting the position of the anchor bar and limiting; The auxiliary assembly is arranged on the fixing assembly and is used for removing the fixing assembly after use, the fixing assembly includes an anchor sleeve (4) arranged on the top of the output end of the hydraulic oil cylinder (2), two clamping blocks (5) symmetrically arranged at the opening of the anchor sleeve (4), a clamping groove (501) is formed in the outer circle of the two clamping blocks (5), the auxiliary assembly includes a clamping sleeve (6) which can be disconnected and clamped in the clamping groove (501) of the outer circle of the two clamping blocks (5), a fixing rod (7) is fixedly arranged on the top of the clamping sleeve (6), a limiting block (9) is fixedly arranged on the top end of the fixing rod (7), a sliding hammer (8) is slidably arranged on the outside of the fixing rod (7), and anti-skid stripes are arranged on the outside of the sliding hammer (8).

2. The device for detecting the pull-out performance of the planted steel bar in the concrete structure engineering according to claim 1, characterized in that, The hydraulic oil cylinder (2) is provided with a counterforce supporting pad (10), two limiting clamping grooves (1001) are symmetrically formed in the top of the counterforce supporting pad (10), two limiting pins (202) are symmetrically fixedly arranged at the bottom of the hydraulic oil cylinder (2), and the limiting pins (202) are matched with the limiting clamping grooves (1001).

3. The device for detecting the pull-out performance of the planted steel bar in the concrete structure engineering according to claim 1, characterized in that, A pressure relief switch (105) is arranged on one side of the manual oil pump (1), and a digital pressure gauge (106) is fixedly arranged on the top of the connection between the manual oil pump (1) and the connecting pipe (3).

4. The device for detecting the pull-out performance of the planted steel bar in the concrete structure engineering according to claim 3, characterized in that, Four supports (102) are fixedly arranged on both sides of the manual oil pump (1) in a rectangular shape, rubber pads (1021) are fixedly arranged on the bottom of the four supports (102), and a handle (101) is fixedly arranged on the top of the manual oil pump (1).

Images