Reinforcement cage length detection device

Abstract

The utility model relates to a reinforcement cage length detection device, which belongs to the technical field of building material detection, and comprises a measurement cylinder, a first chamber is arranged in the measurement cylinder, a second chamber is formed between the first chamber and the measurement cylinder, a detection ring is arranged in the second chamber, and the detection ring is connected with the measurement cylinder. A first cavity is formed in the measuring cylinder, a detection ring is arranged in the first cavity in a sleeving mode, a lead screw nut is welded to one side of the detection ring, a limiting sliding block is welded to the other side of the detection ring, two rectangular limiting holes are formed in the side face of the measuring cylinder, the two rectangular limiting holes are connected to the two ends of a U-shaped plate in a penetrating mode respectively, and the U-shaped plate is fixed to the side face of the detection ring. The device can measure the length of the reinforcement cage and the depth of the pile hole to be cast at the same time, so that the installation relation between the reinforcement cage and the pile hole meets engineering requirements, and the bearing capacity and reliability of the cast-in-place pile are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building material detection, in particular to a steel cage length detection device. Background Art

[0002] The steel cage is a component used to reinforce the concrete structure. It is welded or tied into a grid-like structure by steel bars. It is usually used in the production process of prefabricated reinforced concrete components at the construction site. It provides strong tensile strength and shear strength to prevent deformation and damage of the structure. At the construction site, the steel cage can effectively improve the stability and bearing capacity of the structure. Therefore, in order to improve the mechanical properties of the overall structure, the length of the steel cage is an important measurement parameter. The existing steel cage length detection method is the magnetic logging method. The detection principle is to accurately and intuitively reflect the buried length of the steel cage in the cast-in-place pile by measuring the changes in the earth's magnetic field in or near the steel cage; the traditional length detection equipment can only use an electromagnetic probe to detect the length of the steel cage in the cast-in-place pile. It is impossible to perform synchronous detection and determination on whether the steel cage itself and the pile hole depth before pouring can match, which makes the pouring error, and it is difficult to ensure the stability of the concrete pile foundation structure. If there is an error, rework is required, which wastes a lot of manpower and is not conducive to engineering construction needs. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and provides a reinforcement cage length detection device.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0005] The utility model provides a steel cage length detection device, which comprises a steel cage measuring mechanism and a pile hole detection mechanism:

[0006] The steel cage measuring mechanism comprises a measuring cylinder, a first chamber is arranged inside the measuring cylinder, a second chamber is formed between the first chamber and the measuring cylinder, a detection ring is installed in the second chamber, and the detection ring is sleeved outside the first chamber, a screw nut is welded on one side of the detection ring, and a limit slider is welded on the other side, two rectangular limit holes are opened on the side of the measuring cylinder, the two rectangular limit holes are respectively penetrated and connected to the two ends of the U-shaped plate, and the U-shaped plate is fixed to the side of the detection ring;

[0007] The pile hole detection mechanism includes a cable drum, one end of a conductive cable is wound on the cable drum, the other end of the conductive cable is provided with a magnetic probe, the magnetic probe is connected to a control system, and the conductive cable is passed around a fixed pulley, the fixed pulley is installed on a first cross bar, a second cross bar is installed on the side of the first cross bar, and the first cross bar and the second cross bar are fixed on a detection frame.

[0008] Furthermore, in a preferred embodiment of the present invention, the screw nut is connected to the screw, and the screw is vertically installed in the second chamber.

[0009] Furthermore, in a preferred embodiment of the present invention, one end of the screw rod is fixed to the bottom of the second chamber, and the other end is connected to the servo motor via a coupling.

[0010] Furthermore, in a preferred embodiment of the utility model, an acoustic wave sensor is arranged on the top of the first chamber, a displacement sensor is installed on the inner side of the detection ring, and the acoustic wave sensor and the displacement sensor are connected to a control system.

[0011] Furthermore, in a preferred embodiment of the present invention, the limit slider is connected to a limit rod, and the limit rod is vertically installed in the second chamber.

[0012] Furthermore, in a preferred embodiment of the present invention, two driving racks are provided at the top of the U-shaped plate.

[0013] Furthermore, in a preferred embodiment of the present invention, the two driving racks are respectively meshed with two gears, and the two gears are installed on both sides of the cable drum.

[0014] Furthermore, in a preferred embodiment of the present invention, the cable drum is installed on a cable drum base, and the cable drum base is fixed to the side of the measuring cylinder.

[0015] Furthermore, in a preferred embodiment of the present invention, handles are provided on both sides of the second cross bar.

[0016] Furthermore, in a preferred embodiment of the present invention, a universal pulley is installed at the bottom of the detection frame.

[0017] The beneficial technical effects of the utility model are:

[0018] The steel cage is hoisted and inserted into the first chamber, and the control system operates the sonic sensor to locate the top of the steel cage. When the system receives the top position of the steel cage, it controls the servo motor to rotate forward, so that the lead screw drives the detection ring to move upward synchronously and at a uniform speed under the action of the lead screw nut until the detection ring moves to the top position of the steel cage. During the movement of the detection ring, the displacement sensor detects the length of the upward displacement of the detection ring, generates a measurement result of the length of the steel cage, and achieves the purpose of measuring the length of the steel cage body; when the detection ring gradually moves upward, the detection ring will drive the U-shaped plate to move upward synchronously, so the U-shaped plate will cause the driving rack to drive the gear to rotate when it moves upward. At this time, the rotation of the cable drum will pay out the conductive cable wound on it at a uniform speed, so that the magnetic probe extends to the bottom of the pile hole during the process of paying out the conductive cable, and then the magnetic probe detects the depth result of the pile hole, so as to achieve the purpose of synchronously detecting the depth of the pile hole, thereby improving the quality and efficiency of the steel cage length detection and the pile hole depth measurement, and having high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0022] Figure 3 It is a front view structural schematic diagram of the measuring tube of the utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of the U-shaped plate and the detection ring of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the second chamber of the utility model.

[0025] In the figure:

[0026] 1. Measuring tube; 2. First chamber; 3. Second chamber; 4. Detection ring; 5. Screw nut; 6. Limit slider; 7. Rectangular limit hole; 8. U-shaped plate; 9. Screw; 10. Coupling; 11. Servo motor; 12. Displacement sensor; 13. Limit rod; 14. Drive rack; 15. Gear; 16. Cable drum; 17. Cable drum base; 18. Conductive cable; 19. Magnetic probe; 20. Fixed pulley; 21. First cross bar; 22. Second cross bar; 23. Detection frame; 24. Handle; 25. Universal pulley; 26. Acoustic wave sensor. DETAILED DESCRIPTION

[0027] 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.

[0028] In the description of the utility model, the reference to "embodiment", "one embodiment", "some embodiments", or "other embodiments" indicates that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least some embodiments, but not necessarily all embodiments. Multiple occurrences of "embodiment", "one embodiment", or "some embodiments" do not necessarily all refer to the same embodiment. If the specification describes that a component, feature, structure or characteristic "may", "perhaps" or "can" be included, the specific component, feature, structure or characteristic is not necessarily included. If the specification or claim mentions "one" element, it does not mean that there is only one element. If the specification or claim mentions "another" element, it does not exclude the presence of more than one other element. In addition, specific features, structures, functions or characteristics can be combined in one or more embodiments in any suitable manner. For example, the first embodiment can be combined with the second embodiment, as long as the specific features, structures, functions or characteristics associated with the two embodiments are not mutually exclusive.

[0029] In the description of the present invention, unless otherwise specified, the use of ordinal adjectives such as "first", "second", and "third" to describe a common object only refers to different instances of the same object, and does not imply that the objects described in this way must adopt a given order, whether in time, space, order, or any other manner. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] Example

[0032] like Figure 1As shown, the present application provides a steel cage length detection device, which includes a steel cage measuring mechanism and a pile hole detection mechanism.

[0033] like Figure 1 , 3 As shown in Figures 4 and 5, the steel cage measuring mechanism includes a measuring cylinder 1, a first chamber 2 is arranged inside the measuring cylinder 1, a second chamber 3 is formed between the first chamber 2 and the measuring cylinder 1, a detection ring 4 is installed in the second chamber 3, and the detection ring 4 is sleeved on the outside of the first chamber 2, a screw nut 5 is welded on one side of the detection ring 4, and a limiting slider 6 is welded on the other side, two rectangular limiting holes 7 are provided on the side of the measuring cylinder 1, the two rectangular limiting holes 7 are respectively penetrated and connected to the two ends of a U-shaped plate 8, and the U-shaped plate 8 is fixed to the side of the detection ring 4.

[0034] like Figure 4 , 5 As shown, the screw nut 5 is connected to the screw 9, and the screw 9 is vertically installed in the second chamber 3.

[0035] like Figure 1 , 4 As shown in , 5 , one end of the screw rod 9 is fixed to the bottom of the second chamber 3 , and the other end is connected to the servo motor 11 through a coupling 10 .

[0036] like Figure 1 , 2 As shown in FIG. 4 , an acoustic wave sensor 26 is provided on the top of the first chamber 2, and a displacement sensor 12 is installed on the inner side of the detection ring 4. The acoustic wave sensor 26 and the displacement sensor 12 are connected to a control system.

[0037] It should be noted that before detecting the length of the steel cage, first, the servo motor 11 is controlled to drive the screw 9 to rotate in the opposite direction, thereby driving the screw nut 5 to move downward, thereby driving the detection ring 4 to be placed at the bottom of the second chamber 3 to complete the detection preparation action; then the measurement is started, and the unfilled steel cage is lifted and inserted into the first chamber 2 through the existing crane equipment. At this time, the control system operates the acoustic wave sensor 26 to emit acoustic waves to locate and obtain the top position of the steel cage, generate the top position of the steel cage, and transmit the top position of the steel cage back to the control system. When the system receives the top position of the steel cage The servo motor 11 is controlled to rotate forward at the same time, so that the driving screw 9 rotates forward synchronously, thereby driving the screw nut 5 to gradually move upward at a uniform speed. The screw nut 5 then drives the detection ring 4 to move upward at a uniform speed until the detection ring 4 moves to the top position of the steel cage. During the movement of the detection ring 4, the displacement sensor 12 detects and records the length of the upward displacement of the detection ring 4 to generate a measurement result of the steel cage length, thereby achieving the purpose of measuring the length of the steel cage body, providing accurate data for pile foundation pouring, and being able to further analyze the supporting performance and bearing capacity of the steel cage, and improve the stability and strength of the cast-in-place pile.

[0038] like Figure 4 , 5 As shown, the limiting slider 6 is connected to the limiting rod 13 , and the limiting rod 13 is vertically installed in the second chamber 3 .

[0039] It should be noted that the detection ring 4 is driven by the servo motor 11 in the second chamber 3 to achieve up and down movement, but the detection ring 4 is a ring structure, and deflection and jitter are prone to occur during the up and down movement, which causes certain interference to the measurement of the displacement sensor 12, thereby causing errors in the length measurement results; therefore, a limit slider is provided on the detection ring 4, and the limit slider 6 slides on the limit rod 13 during the movement, which can greatly improve the measurement stability of the detection ring 4, avoid deflection and jitter during the measurement of the displacement sensor 12, and thus ensure the accuracy of the length measurement results, and improve the quality and efficiency of the steel cage length detection.

[0040] like Figure 1 , 2 As shown in Figure 3, the pile hole detection mechanism includes a cable drum 16, one end of a conductive cable 18 is wound on the cable drum 16, the other end of the conductive cable 18 is provided with a magnetic probe 19, the magnetic probe 19 is connected to a control system, and the conductive cable 18 is passed around a fixed pulley 20, the fixed pulley 20 is installed on a first cross bar 21, a second cross bar 22 is installed on the side of the first cross bar 21, and the first cross bar 21 and the second cross bar 22 are fixed on a detection frame 23.

[0041] like Figure 1 , 2As shown in Figure 3, two driving racks 14 are provided at the top of the U-shaped plate 8.

[0042] like Figure 1 , 2 As shown, the two driving racks 14 are respectively meshed with two gears 15 , and the two gears 15 are installed on both sides of the cable drum 16 .

[0043] like Figure 2 As shown, the cable drum 16 is installed on a cable drum base 17 , and the cable drum base 17 is fixed to the side of the measuring cylinder 1 .

[0044] It should be noted that when measuring the steel cage itself, the depth detection of the pile hole to be poured can be carried out simultaneously. First, the magnetic probe 19 is placed flush with the entrance of the pile hole. When the detection ring 4 gradually moves upward, the detection ring 4 will drive the U-shaped plate 8 to move upward synchronously, and under the restriction of the rectangular limit hole 7, the upward movement of the U-shaped plate 8 is a directional movement; the U-shaped plate 8 then drives the two driving racks 14 to move upward. Since each driving rack 14 is meshed with the gears 15 on both sides of the cable drum 16, the gears 15 will rotate when the driving rack 14 moves upward. Thereby, the cable drum 16 rotates on the cable drum base 17, and the cable drum 16 will pay out the conductive cable 18 wound on it at a uniform speed downward, so that the magnetic probe 19 extends toward the bottom of the pile hole during the paying out of the conductive cable 18, and then the magnetic probe 19 detects the depth of the pile hole, thereby achieving the purpose of synchronously detecting the depth of the pile hole, providing accurate pile hole depth data for pile foundation pouring, ensuring that the relationship between the depth of the pile hole and the length of the steel cage meets the pouring requirements, improving the bearing capacity and reliability of the cast-in-place pile, and reducing the incidence of accidents caused by quality problems in the pouring of the steel cage.

[0045] like Figure 1 As shown, handles 24 are provided on both sides of the second cross bar 22 .

[0046] like Figure 1 As shown, a universal pulley 25 is installed at the bottom of the detection frame 23.

[0047] It should be noted that when detecting the pile hole depth, the position of the magnetic probe 19 needs to be adjusted to ensure the accuracy of the detection result. However, most of the traditional steel cage length detection devices are not equipped with moving parts and cannot be moved and adjusted. Therefore, the pile hole depth results detected by the traditional detection device have large errors, which is not conducive to the staff's further analysis of the pouring project; therefore, when the staff needs to adjust the detection point of the magnetic probe 19, the detection frame can be pushed by the handle 24, and the detection frame 23 moves smoothly under the action of the universal pulley 25, so as to achieve the purpose of adjusting the detection position of the magnetic probe 19, improve the accuracy of the steel cage length measurement and pile hole depth detection results, avoid excessive errors that lead to incorrect analysis of the pouring project by the staff, and improve the quality of steel cage length detection. In addition, the device is small in size and can be moved to any detection site, saving time and effort, improving the portability of the device, breaking the detection limitations, and having a simple structure and easy assembly, and high reliability.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A steel cage length detection device, comprising a steel cage measurement mechanism and a pile hole detection mechanism, characterized in that: The steel cage measuring mechanism comprises a measuring cylinder, a first chamber is arranged inside the measuring cylinder, a second chamber is formed between the first chamber and the measuring cylinder, a detection ring is installed in the second chamber, and the detection ring is sleeved outside the first chamber, a screw nut is welded on one side of the detection ring, and a limit slider is welded on the other side, two rectangular limit holes are opened on the side of the measuring cylinder, the two rectangular limit holes are respectively penetrated and connected to the two ends of the U-shaped plate, and the U-shaped plate is fixed to the side of the detection ring; The pile hole detection mechanism includes a cable drum, one end of a conductive cable is wound on the cable drum, the other end of the conductive cable is provided with a magnetic probe, the magnetic probe is connected to a control system, and the conductive cable is passed around a fixed pulley, the fixed pulley is installed on a first cross bar, a second cross bar is installed on the side of the first cross bar, and the first cross bar and the second cross bar are fixed on a detection frame.

2. A steel cage length detection device according to claim 1, characterized in that: The screw nut is connected to the screw, and the screw is vertically installed in the second chamber.

3. A steel cage length detection device according to claim 2, characterized in that: One end of the screw rod is fixed to the bottom of the second chamber, and the other end is connected to the servo motor through a coupling.

4. A steel cage length detection device according to claim 1, characterized in that: An acoustic wave sensor is arranged on the top of the first chamber, a displacement sensor is installed on the inner side of the detection ring, and the acoustic wave sensor and the displacement sensor are connected to a control system.

5. A steel cage length detection device according to claim 1, characterized in that: The limiting slide block is connected to the limiting rod, and the limiting rod is vertically installed in the second chamber.

6. A steel cage length detection device according to claim 1, characterized in that: Two driving racks are arranged on the top of the U-shaped plate.

7. A steel cage length detection device according to claim 6, characterized in that: The two driving racks are respectively meshed with two gears, and the two gears are installed on both sides of the cable winding drum.

8. A steel cage length detection device according to claim 7, characterized in that: The cable drum is installed on a cable drum base, and the cable drum base is fixed on the side of the measuring cylinder.

9. A steel cage length detection device according to claim 1, characterized in that: Handles are arranged on both sides of the second crossbar.

10. A steel cage length detection device according to claim 1, characterized in that: A universal pulley is installed at the bottom of the detection frame.

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