Portable reinforcing steel sleeve connection quality detection auxiliary device

Abstract

The utility model belongs to the field of steel sleeve connecting quality detection auxiliary tool, concretely relates to a portable steel sleeve connecting quality detection auxiliary device, including two front and back corresponding mounting arms, and the right end between two mounting arms is fixedly connected with the connecting handle cover, the middle left side fixed connection of connecting handle cover has the locating rod, the locating rod is fixedly connected with the locating block, is equipped with the locating groove on the locating block, the left end of two mounting arms is connected with the mounting seat, two mounting seats are all connected with the mounting block, and two mounting blocks are all fixedly connected with the clamping seat. The portable steel sleeve connecting quality detection auxiliary device, positioning is carried out through the locating groove of locating block, and the transmitting probe and receiving probe of ultrasonic flaw detector can be driven to move stably through the movement of connecting handle cover, so that the waveform is more regular, and the detection result of ultrasonic flaw detector is effectively ensured.

Description

Technical Field

[0001] This utility model relates to a portable auxiliary device for detecting the quality of rebar sleeve connections, belonging to the field of auxiliary tools for detecting the quality of rebar sleeve connections. Background Technology

[0002] Rebar sleeve connection is a common rebar connection method in bridge construction, which involves threading two rebars together within the same rebar sleeve. To ensure the supporting strength of the rebars, the ends of the two rebars must fit together, i.e., be aligned. However, in actual construction, due to various reasons, the two rebars often do not align. Therefore, quality inspection of rebar sleeve connections is a crucial step in bridge construction. Currently, most quality inspections of rebar sleeve connections rely on manual pre-marking, followed by measurement with a ruler after connection. For example, Chinese utility model patent CN221781426U discloses a rapid quality inspection tool for straight thread rebar sleeve connections. However, the aforementioned existing technology suffers from low construction efficiency due to the need for pre-marking and measuring the two rebars. Furthermore, the lines are relatively thick, and the long installation period makes the pre-marked lines prone to wear, hindering measurement and observation during later quality inspections and increasing the risk of human error, thus affecting the judgment results.

[0003] To address this, some construction companies use ultrasonic flaw detectors. They move two probes close to the rebar sleeve, observing waveform changes and analyzing the differences to determine if the two rebars are aligned. However, since both probes are moved by hand, hand movements and varying speeds often cause significant waveform variations, affecting the judgment results. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a portable auxiliary device for detecting the quality of steel bar sleeve connections with a probe that can be moved smoothly.

[0005] The portable steel bar sleeve connection quality inspection auxiliary device of this utility model includes two front and rear corresponding mounting arms. A connecting handle is fixedly connected between the right ends of the two mounting arms. A positioning rod is fixedly connected to the left side of the middle part of the connecting handle. A positioning block is fixedly connected to the positioning rod. The positioning block is provided with a positioning groove. A mounting seat is connected to the left end of each of the two mounting arms. A mounting block is connected to each of the two mounting seats. A card seat is fixedly connected to each of the two mounting blocks.

[0006] Furthermore, the mounting base has a guide hole extending along the front-back direction, and a guide block is slidably connected inside the guide hole. A limit platform is fixedly connected to the outer end of the guide block, and a connecting screw is fixedly connected to the inner end of the guide block. The mounting block is fixedly connected to the connecting screw, and a spring is sleeved on the outer side of the connecting screw between the mounting base and the mounting block.

[0007] Furthermore, the mounting block and the connecting screw are connected by a thread.

[0008] Furthermore, the cross-sections of both the guide hole and the guide block are regular polygons.

[0009] Furthermore, the positioning groove is V-shaped, the top of the mounting arm is provided with a sliding groove in the left-right direction, the mounting seat is slidably connected in the sliding groove, and a mounting seat locking assembly is connected between the mounting seat and the mounting arm.

[0010] Furthermore, the mounting base locking assembly includes a locking screw, which is fixedly connected to the bottom of the mounting base. The mounting arm has a strip-shaped sliding hole corresponding to the sliding groove, and the lower end of the locking screw passes through the strip-shaped sliding hole and is threadedly connected to a locking sleeve.

[0011] Working principle and process:

[0012] In use, the transmitting and receiving probes of the ultrasonic flaw detector are respectively installed on the two mounting brackets. By holding the connecting sleeve, the positioning slot of the positioning block is locked onto the outer wall of the rebar sleeve. At this time, the transmitting and receiving probes are on opposite sides of the rebar sleeve. Then, keep the positioning slot in contact with the rebar sleeve and move the connecting sleeve along the axial direction of the rebar sleeve. This causes the transmitting and receiving probes to move axially along the outer wall of the rebar sleeve through the two sets of mounting arms, mounting bases, mounting blocks, and mounting brackets. By analyzing the waveform changes on the ultrasonic flaw detector, it can be determined whether the two rebars are aligned.

[0013] The advantages of this utility model compared with the prior art are:

[0014] The portable auxiliary device for detecting the quality of steel bar sleeve connections described in this utility model is positioned by the positioning groove of the positioning block. By moving the connecting sleeve, the transmitting and receiving probes of the ultrasonic flaw detector can be moved smoothly, thereby making the waveform more regular and effectively ensuring the detection results of the ultrasonic flaw detector. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 Enlarged view at point M;

[0017] Figure 3 This is a top view of the present invention;

[0018] Figure 4 yes Figure 3 Sectional view at point AA;

[0019] Figure 5 This is a schematic diagram of the structure of this utility model in use.

[0020] In the diagram: 1. Mounting arm; 2. Connecting grip; 3. Positioning rod; 4. Positioning block; 5. Positioning groove; 6. Mounting base; 7. Connecting screw; 8. Limiting platform; 9. Spring; 10. Mounting block; 11. Card seat; 12. Slide groove; 13. Strip-shaped sliding hole; 14. Locking screw; 15. Locking sleeve; 16. Guide hole; 17. Guide block; 18. Rebar; 19. Rebar sleeve; 20. Transmitting probe; 21. Receiving probe. Detailed Implementation

[0021] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0022] Example 1:

[0023] like Figure 1 , Figure 3 As shown, the portable steel bar sleeve connection quality inspection auxiliary device of this utility model includes two front and rear corresponding mounting arms 1. A connecting handle 2 is fixedly connected between the right ends of the two mounting arms 1. A positioning rod 3 is fixedly connected to the left side of the middle part of the connecting handle 2. A positioning block 4 is fixedly connected to the positioning rod 3. A positioning groove 5 is provided on the positioning block 4. A mounting seat 6 is connected to the left end of each of the two mounting arms 1. A mounting block 10 is connected to each of the two mounting seats 6. A card seat 11 is fixedly connected to each of the two mounting blocks 10.

[0024] When using, such as Figure 5 As shown, the transmitting probe 20 and receiving probe 21 of the ultrasonic flaw detector are respectively installed on two mounting bases 11. By holding the connecting sleeve 2, the positioning groove 5 of the positioning block 4 is clamped on the outer wall of the rebar sleeve 19. At this time, the transmitting probe 20 and the receiving probe 21 are on the two sides of the rebar sleeve 19. Then, the positioning groove 5 is kept in contact with the rebar sleeve 19, and the connecting sleeve 2 is moved along the axial direction of the rebar sleeve 19. Thus, the transmitting probe 20 and the receiving probe 21 are moved along the outer wall of the rebar sleeve 19 by the two sets of mounting arms 1, mounting base 6, mounting block 10 and mounting base 11. Thus, the difference in waveform changes on the ultrasonic flaw detector can be analyzed to determine whether the two rebars 18 are aligned.

[0025] Example 2:

[0026] like Figures 1 to 5 As shown, based on Example 1,

[0027] Furthermore, the mounting base 6 has a guide hole 16 extending along the front-rear direction. A guide block 17 is slidably connected within the guide hole 16. A limiting platform 8 is fixedly connected to the outer end of the guide block 17, and a connecting screw 7 is fixedly connected to the inner end of the guide block 17. The mounting block 10 is fixedly connected to the connecting screw 7, and a spring 9 is sleeved on the outer side of the connecting screw 7 between the mounting base 6 and the mounting block 10. Under the elastic restoring action of the spring 9, the mounting block 10 can maintain a tendency to move inward, thereby ensuring that the probe engaged on the clamping seat 11 is tightly attached to the outer wall of the rebar sleeve 19.

[0028] Furthermore, the mounting block 10 and the connecting screw 7 are connected by a thread. The mounting block 10 can be disassembled, thereby facilitating the maintenance of the components.

[0029] Furthermore, the cross-sections of the guide hole 16 and the guide block 17 are both regular polygons, and in this embodiment, they are regular hexagons. This arrangement can ensure that the guide hole 16 and the guide block 17 can move smoothly in the axial direction and will not rotate relative to each other in the radial direction, thereby preventing the card holder 11 from deflecting.

[0030] Furthermore, the positioning groove 5 is V-shaped, and the top of the mounting arm 1 is provided with a sliding groove 12 along the left-right direction. The mounting seat 6 is slidably connected in the sliding groove 12, and a mounting seat locking assembly is connected between the mounting seat 6 and the mounting arm 1. It can be applied to steel bar sleeves 19 of different diameters.

[0031] Furthermore, the mounting base locking assembly includes a locking screw 14, which is fixedly connected to the bottom of the mounting base 6. A strip-shaped sliding hole 13 corresponding to the sliding groove 12 passes through the mounting arm 1. The lower end of the locking screw 14 passes through the strip-shaped sliding hole 13 and is threadedly connected to a locking sleeve 15. The mounting base 6 can be loosened and locked by turning the locking sleeve 15. The structure is simple and the operation is convenient.

[0032] It should be noted that in the description of this utility model, the terms "inner", "outer", "left", "right", "front", "rear", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not require that this utility model must be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model.

Claims

1. A portable auxiliary device for inspecting the quality of rebar sleeve connections, characterized in that: It includes two front and rear corresponding mounting arms (1), a connecting sleeve (2) is fixedly connected between the right ends of the two mounting arms (1), a positioning rod (3) is fixedly connected to the left side of the middle part of the connecting sleeve (2), a positioning block (4) is fixedly connected to the positioning rod (3), a positioning groove (5) is provided on the positioning block (4), a mounting seat (6) is connected to the left end of the two mounting arms (1), a mounting block (10) is connected to the two mounting seats (6), and a card seat (11) is fixedly connected to the two mounting blocks (10).

2. The portable auxiliary device for detecting the quality of rebar sleeve connections according to claim 1, characterized in that: The mounting base (6) has a guide hole (16) extending along the front-back direction. A guide block (17) is slidably connected inside the guide hole (16). A limiting platform (8) is fixedly connected to the outer end of the guide block (17), and a connecting screw (7) is fixedly connected to the inner end of the guide block (17). The mounting block (10) is fixedly connected to the connecting screw (7), and a spring (9) is sleeved on the outer side of the connecting screw (7) between the mounting base (6) and the mounting block (10).

3. The portable auxiliary device for detecting the quality of rebar sleeve connections according to claim 2, characterized in that: The mounting block (10) and the connecting screw (7) are connected by a thread.

4. The portable auxiliary device for detecting the quality of rebar sleeve connections according to claim 2, characterized in that: The cross-sections of the guide hole (16) and the guide block (17) are both regular polygons.

5. The portable auxiliary device for detecting the quality of rebar sleeve connections according to any one of claims 1 to 4, characterized in that: The positioning groove (5) is V-shaped, and the top of the mounting arm (1) is provided with a sliding groove (12) in the left and right direction. The mounting seat (6) is slidably connected in the sliding groove (12), and a mounting seat locking assembly is connected between the mounting seat (6) and the mounting arm (1).

6. The portable auxiliary device for detecting the quality of rebar sleeve connections according to claim 5, characterized in that: The mounting base locking assembly includes a locking screw (14), which is fixedly connected to the bottom of the mounting base (6). The mounting arm (1) has a strip-shaped sliding hole (13) corresponding to the sliding groove (12). The lower end of the locking screw (14) passes through the strip-shaped sliding hole (13) and is threadedly connected to a locking sleeve (15).

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