Embedded part drawing test device

Abstract

The utility model relates to the technical field of building component detection, and discloses an embedded part drawing test device, which comprises an embedded part main body, a base and a positioning frame, the positioning frame is arranged at the top position of the base, the embedded part main body consists of a connecting piece, a concrete block and a reinforcing steel bar, a first connecting assembly is arranged at the top of the base, and a second connecting assembly is arranged at the bottom of the base. The first connecting assembly comprises a connecting plate and a positioning rod, the first connecting assembly is connected with the embedded part body, a first air cylinder is installed on the top of the base, and a piston rod of the first air cylinder is connected to the outer wall of one side of the connecting plate; a second connecting assembly is arranged above the base and comprises a lifting plate, and symmetrically-arranged connecting rods are installed at the bottom of the lifting plate in a sliding mode. Compared with an existing embedded part drawing test device which can only carry out a drawing test in a single direction, the embedded part drawing test device can simulate the stress condition of the embedded part in actual use more truly, so that the test result has higher reliability and reference value.

Description

Technical Field

[0001] This utility model belongs to the field of building component testing technology, specifically, it relates to a pull-out test device for embedded parts. Background Technology

[0002] Embedded parts (precast embedded parts) are components that are pre-installed (buried) in concealed works. They are components that are placed during the pouring of the structure and are used for overlapping when building the superstructure to facilitate the installation and fixing of external engineering equipment foundations. Most embedded parts are made of metal.

[0003] In building construction, the installation quality of embedded parts directly affects the stability and safety of the entire building structure. Pull-out tests on embedded parts can simulate the stress conditions they experience in actual use and assess whether their load-bearing capacity meets design requirements. However, existing pull-out testing devices for embedded parts can only perform pull-out tests in one direction, failing to realistically simulate the stress conditions experienced by embedded parts in actual use, resulting in low reliability of the test results.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] An embedded part pull-out test device includes an embedded part body, a base and a positioning frame. The positioning frame is installed at the top of the base. The embedded part body is composed of a connector, a concrete block and a reinforcing bar. A first connecting assembly is provided at the top of the base. The first connecting assembly includes a connecting plate and a positioning rod. The first connecting assembly is connected to the embedded part body. A first cylinder is installed at the top of the base. The piston rod of the first cylinder is connected to the outer wall of one side of the connecting plate.

[0007] A second connecting assembly is provided above the base. The second connecting assembly includes a lifting plate. Symmetrically arranged connecting rods are slidably installed on the bottom of the lifting plate. A bearing plate is fixedly connected to the bottom end of the connecting rod. A symmetrically arranged arc-shaped positioning groove is opened on the opposite side of the bearing plate. The arc-shaped positioning groove is adapted to the reinforcing bar. A second cylinder is provided above the lifting plate. The piston rod at the bottom end of the second cylinder is connected to the outer wall of the top of the lifting plate.

[0008] In a preferred embodiment of this utility model, the positioning frame is installed at the top of the base, the concrete block is placed inside the positioning frame, and a symmetrically arranged limiting plate is fixedly connected to one side of the positioning frame, with the limiting plate in contact with the side of the concrete block.

[0009] In a preferred embodiment of this utility model, the connector has symmetrically arranged connecting holes, the positioning rod is slidably disposed on the inner wall of the connecting hole, the end of the positioning rod is provided with a threaded section, the threaded section extends to the outside of the connecting hole, and a fastening nut is screwed onto the threaded section, the fastening nut is in contact with the outer wall of one side of the connector.

[0010] In a preferred embodiment of this utility model, the top of the base is provided with symmetrically arranged sliding grooves, and the bottom outer wall of the connecting plate is fixedly connected with symmetrically arranged guide blocks. The guide blocks are slidably connected to the inner wall of the sliding grooves, and displacement sensors are installed on both the guide blocks and the lifting plate.

[0011] In a preferred embodiment of the present invention, a mounting base is fixedly provided on the top outer wall of the base, the first cylinder is mounted on one side outer wall of the mounting base, an L-shaped mounting bracket is fixedly provided on the top of the base, and the second cylinder is mounted on the mounting bracket.

[0012] In a preferred embodiment of this utility model, a symmetrically arranged lifting track is fixedly connected to the top outer wall of the base, a connecting block is slidably arranged on the inner wall of the lifting track, the connecting block is fixedly connected to the outer walls of both sides of the lifting plate, a symmetrically arranged movable groove is opened at the bottom of the lifting plate, a connecting rod is slidably connected to the inner wall of the movable groove, a first bidirectional screw is rotatably installed on the inner side of the movable groove, and a reverse-arranged threaded hole is opened on the adjacent connecting rod, and the first bidirectional screw is screwed into the inner wall of the threaded hole.

[0013] In a preferred embodiment of this utility model, a positioning mechanism is provided on the positioning frame. The positioning mechanism includes a positioning plate and a transverse track. Two positioning plates and two transverse tracks are symmetrically arranged. The positioning plate is slidably connected to the top of the positioning frame, and the bottom of the positioning plate is in contact with the top of the concrete block. The transverse track is fixedly installed on the outer wall of the top of the base. An L-shaped guide rod is slidably arranged on the transverse track. The top end of each guide rod is connected to the outer wall of one side of the positioning plate. The same second bidirectional screw is rotatably installed on the transverse track. The two guide rods have second threaded holes arranged in opposite directions, and the second bidirectional screw is screwed into the inner wall of the second threaded hole. A knob is fixedly connected to the end of the second bidirectional screw.

[0014] In a preferred embodiment of this utility model, tension sensors are provided at the connection points of the connecting plate and the connecting member, as well as at the connection points of the bearing plate and the reinforcing bar, and the tension sensors are connected to a controller. The first cylinder, the second cylinder, and the displacement sensor are all connected to the controller.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention connects the first connecting component to the embedded part body via a first connecting component and a first cylinder, enabling pull-out testing of the embedded part body in the horizontal direction. Similarly, by connecting the second connecting component to the embedded part body via a second cylinder, pull-out testing of the embedded part body in the vertical direction is achieved. Compared to existing embedded part pull-out testing devices that can only perform pull-out testing in a single direction, this invention more realistically simulates the stress conditions of the embedded part in actual use, making the test results more reliable and valuable.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the overall structure of a pre-embedded part pull-out test device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the embedded part body and positioning mechanism of the embedded part pull-out test device of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the lifting plate and the lifting track of a pre-embedded part pull-out test device according to this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the second connecting component and the main body of the embedded part in a pre-embedded part pull-out test device of this utility model;

[0023] Figure 5 This is a schematic diagram of the lifting plate structure of a pre-embedded part pull-out test device according to the present invention.

[0024] In the diagram: 1. Embedded part body; 101. Connector; 102. Concrete block; 103. Reinforcing bar; 2. Base; 3. Positioning frame; 4. First cylinder; 5. Mounting seat; 6. First connecting assembly; 601. Connecting plate; 602. Positioning rod; 603. Threaded section; 604. Fastening nut; 7. Second connecting assembly; 701. Lifting plate; 702. Movable groove; 703. Connecting rod; 704. Bearing plate; 705. First bidirectional screw; 706. Arc-shaped positioning groove; 8. Positioning mechanism; 801. Positioning plate; 802. Transverse track; 803. Guide rod; 804. Second bidirectional screw; 805. Knob; 9. Limiting plate; 10. Guide block; 11. Mounting frame; 12. Second cylinder; 13. Lifting track; 14. Connecting block; 15. Connecting hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0026] like Figures 1 to 5 As shown

[0027] A pull-out testing device for embedded parts includes an embedded part body 1, a base 2, and a positioning frame 3. The positioning frame 3 is installed at the top of the base 2. The embedded part body 1 is composed of a connector 101, a concrete block 102, and a reinforcing bar 103. The positioning frame 3 is installed at the top of the base 2, and the concrete block 102 is placed inside the positioning frame 3. A symmetrically arranged limiting plate 9 is fixedly connected to one side of the positioning frame 3, and the limiting plate 9 contacts the side of the concrete block 102. A first connecting assembly 6 is provided at the top of the base 2. The first connecting assembly 6 includes a connecting plate 601 and a positioning rod 602. The first connecting assembly 6 is connected to the embedded part body 1. The connector 101 has symmetrically arranged connecting holes 15. The positioning rod 602 is slidably disposed on the inner wall of the connecting hole 15. The end of the positioning rod 602 is provided with a threaded section 603, which extends to the outside of the connecting hole 15. A fastening nut 604 is screwed onto the threaded section 603. The mother 604 contacts the outer wall of one side of the connector 101. The top of the base 2 is provided with symmetrically arranged sliding grooves. The bottom outer wall of the connecting plate 601 is fixedly connected with symmetrically arranged guide blocks 10. The guide blocks 10 are slidably connected to the inner wall of the sliding groove. Displacement sensors are installed on both the guide blocks 10 and the lifting plate 701. The top of the base 2 is equipped with a first cylinder 4. The piston rod of the first cylinder 4 is connected to the outer wall of one side of the connecting plate 601. The top outer wall of the base 2 is fixedly provided with a mounting seat 5. The first cylinder 4 is installed on the outer wall of one side of the mounting seat 5. The first connecting assembly 6 is connected to the embedded part body 1. The first cylinder 4 is started to work. In cooperation with the set guide blocks 10, the first connecting assembly 6 is moved. A horizontal pulling force is applied to the embedded part body 1 through the connecting plate 601. The tension sensor measures the magnitude of the tension in real time. The displacement sensor measures the displacement of the guide block 10. Pull-out test of the embedded part body 1 can be realized in the horizontal direction.

[0028] A second connecting assembly 7 is provided above the base 2. The second connecting assembly 7 includes a lifting plate 701. Symmetrically arranged connecting rods 703 are slidably installed on the bottom of the lifting plate 701. A bearing plate 704 is fixedly connected to the bottom end of the connecting rods 703. A symmetrically arranged arc-shaped positioning groove 706 is opened on the opposite side of the bearing plate 704. The arc-shaped positioning groove 706 is adapted to the reinforcing bar 103. A symmetrically arranged lifting rail 13 is fixedly connected to the outer wall of the top of the base 2. A connecting block 14 is slidably arranged on the inner wall of the lifting rail 13. The connecting block 14 is fixedly connected to the outer walls on both sides of the lifting plate 701. A symmetrically arranged movable groove 702 is opened at the bottom of the lifting plate 701. The connecting rods 703 are slidably connected to the inner wall of the movable groove 702. A first bidirectional screw 705 is rotatably installed on the inner side of the movable groove 702. Adjacent connecting rods 703 have reverse-oriented threaded holes, and the first bidirectional screw 705 is screwed into the inner wall of the threaded hole. A second cylinder 12 is provided above the lifting plate 701. The piston rod at the bottom of the second cylinder 12 is connected to the top outer wall of the lifting plate 701. An L-shaped mounting bracket 11 is fixedly provided on the top of the base 2. The second cylinder 12 is mounted on the mounting bracket 11, connecting the second connecting assembly 7 to the embedded part body 1. When the second cylinder 12 is started, it works in conjunction with the lifting rail 13 and the connecting block 14 to drive the second connecting assembly 7 to move vertically, thereby applying a vertical pulling force to the embedded part body 1. The tension sensor measures the magnitude of the tension in real time, and the displacement sensor measures the displacement of the guide block 10, enabling a pull-out test of the embedded part body 1 in the vertical direction.

[0029] In a specific embodiment, a positioning mechanism 8 is provided on the positioning frame 3. The positioning mechanism 8 includes a positioning plate 801 and a transverse track 802. Two positioning plates 801 and two transverse tracks 802 are symmetrically arranged. The positioning plate 801 is slidably connected to the top position of the positioning frame 3, and the bottom of the positioning plate 801 is in contact with the top of the concrete block 102. The transverse track 802 is fixedly installed on the top outer wall of the base 2. An L-shaped guide rod 803 is slidably arranged on the transverse track 802, and the top end of the guide rod 803 is connected to one side of the outer wall of the positioning plate 801. A second bidirectional screw 804 is rotatably mounted on the transverse track 802. Two guide rods 803 have second threaded holes arranged in opposite directions, and the second bidirectional screw 804 is screwed into the inner wall of the second threaded hole. A knob 805 is fixedly connected to the end of the second bidirectional screw 804. Tension sensors are provided at the connection between the connecting plate 601 and the connecting piece 101, as well as at the connection between the bearing plate 704 and the reinforcing bar 103. The tension sensors are connected to a controller. The first cylinder 4, the second cylinder 12, and the displacement sensor are all connected to the controller.

[0030] The implementation principle of the embedded part pull-out test device in this embodiment is as follows: In specific use, the embedded part body 1 is placed on the positioning frame 3 so that the concrete block 102 is in contact with the side of the limiting plate 9. Then, the second bidirectional screw 804 is rotated by the knob 805. The second bidirectional screw 804 drives the two guide rods 803 to move relative to each other, so that the two guide rods 803 drive the two positioning plates 801 to move relative to each other until the bottom of the two positioning plates 801 is in contact with the top of the concrete block 102, thus forming a positioning effect on the embedded part body 1.

[0031] After the embedded part body 1 is positioned, when performing a horizontal pull test, the connecting plate 601 is moved to contact the side of the connector 101, and then the positioning rod 602 is inserted into the connecting hole 15 on the connector 101, so that the threaded section 603 extends to the outside of the connecting hole 15. Then, the fastening nut 604 is screwed onto the threaded section 603, and the fastening nut 604 contacts the outer wall of one side of the connector 101, forming a fixed connection between the connector 101 and the connecting plate 601, thus completing the fixed connection between the embedded part body 1 and the first connecting assembly 6. Then, the first cylinder 4 is started to work, and the guide block 10 is set to drive the first connecting assembly 6 to move. A horizontal pulling force is applied to the embedded part body 1 through the connecting plate 601. The pulling force sensor measures the magnitude of the pulling force in real time, and the displacement sensor measures the displacement of the guide block 10. The data is transmitted to the controller for processing.

[0032] After the embedded part body 1 is positioned, during the vertical pull test, the bearing plate 704 is moved to the side of the reinforcing bar 103 so that the arc-shaped positioning groove 706 is aligned with the reinforcing bar 103. Then, the first bidirectional screw 705 is rotated, which drives the two connecting rods 703 to move relative to each other. The two connecting rods 703 drive the two bearing plates 704 to move relative to each other, so that the arc-shaped positioning grooves 706 on the opposite side of the two bearing plates 704 come into contact with the outer wall of the reinforcing bar 103, forming a fixed connection between the reinforcing bar 103 and the bearing plate 704. This completes the fixed connection between the embedded part body 1 and the second connecting assembly 7. Then, the second cylinder 12 is started to work, which, together with the set lifting rail 13 and connecting block 14, drives the second connecting assembly 7 to move vertically, so that a vertical pulling force is applied to the embedded part body 1. Similarly, the tension sensor measures the magnitude of the tension in real time, and the displacement sensor measures the displacement of the guide block 10. The data is transmitted to the controller for processing.

Claims

1. A pull-out testing device for embedded parts, comprising an embedded part body, a base, and a positioning frame, characterized in that, The positioning frame is installed at the top of the base. The main body of the embedded part is composed of connectors, concrete blocks and steel bars. A first connecting assembly is provided at the top of the base. The first connecting assembly includes a connecting plate and a positioning rod. The first connecting assembly is connected to the main body of the embedded part. A first cylinder is installed at the top of the base. The piston rod of the first cylinder is connected to the outer wall of one side of the connecting plate. A second connecting assembly is provided above the base. The second connecting assembly includes a lifting plate. Symmetrically arranged connecting rods are slidably installed on the bottom of the lifting plate. A bearing plate is fixedly connected to the bottom end of the connecting rod. A symmetrically arranged arc-shaped positioning groove is opened on the opposite side of the bearing plate. The arc-shaped positioning groove is adapted to the reinforcing bar. A second cylinder is provided above the lifting plate. The piston rod at the bottom end of the second cylinder is connected to the outer wall of the top of the lifting plate.

2. The pre-embedded part pull-out test device according to claim 1, characterized in that, The positioning frame is installed at the top of the base, the concrete block is placed inside the positioning frame, and a symmetrically arranged limiting plate is fixedly connected to one side of the positioning frame, the limiting plate being in contact with the side of the concrete block.

3. The pre-embedded part pull-out test device according to claim 1, characterized in that, The connector has symmetrically arranged connecting holes. The positioning rod is slidably disposed on the inner wall of the connecting hole. The end of the positioning rod is provided with a threaded section. The threaded section extends to the outside of the connecting hole. A fastening nut is screwed onto the threaded section. The fastening nut contacts the outer wall of one side of the connector.

4. The pre-embedded part pull-out test device according to claim 1, characterized in that, The base has symmetrically arranged sliding grooves on its top, and symmetrically arranged guide blocks are fixedly connected to the bottom outer wall of the connecting plate. The guide blocks are slidably connected to the inner wall of the sliding grooves, and displacement sensors are installed on both the guide blocks and the lifting plate.

5. The pre-embedded part pull-out test device according to claim 1, characterized in that, A mounting base is fixedly provided on the top outer wall of the base. The first cylinder is mounted on one side of the outer wall of the mounting base. An L-shaped mounting bracket is fixedly provided on the top of the base, and the second cylinder is mounted on the mounting bracket.

6. The pre-embedded part pull-out test device according to claim 1, characterized in that, The base has symmetrically arranged lifting rails fixedly connected to its top outer wall. Connecting blocks are slidably arranged on the inner wall of the lifting rails. The connecting blocks are fixedly connected to the outer walls of both sides of the lifting plate. The bottom of the lifting plate has symmetrically arranged movable grooves. Connecting rods are slidably connected to the inner wall of the movable grooves. A first bidirectional screw is rotatably installed inside the movable grooves. Adjacent connecting rods have reverse-arranged threaded holes, and the first bidirectional screw is screwed into the inner wall of the threaded hole.

7. The pre-embedded part pull-out test device according to claim 1, characterized in that, The positioning frame is equipped with a positioning mechanism, which includes a positioning plate and a transverse track. Two positioning plates and two transverse tracks are symmetrically arranged. The positioning plate is slidably connected to the top of the positioning frame, and the bottom of the positioning plate is in contact with the top of the concrete block. The transverse track is fixedly installed on the outer wall of the top of the base. An L-shaped guide rod is slidably arranged on the transverse track. The top end of each guide rod is connected to the outer wall of one side of the positioning plate. The same second bidirectional screw is rotatably installed on the transverse track. The two guide rods have second threaded holes arranged in opposite directions, and the second bidirectional screw is screwed into the inner wall of the second threaded hole. A knob is fixedly connected to the end of the second bidirectional screw.

8. The pre-embedded part pull-out test device according to claim 4, characterized in that, Tension sensors are installed at the connection points of the connecting plate and the connecting parts, as well as at the connection points of the bearing plate and the reinforcing bars. The tension sensors are connected to a controller, and the first cylinder, the second cylinder, and the displacement sensor are all connected to the controller.

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