A bolt tightening detection device

Abstract

This utility model discloses a bolt tightening detection device, relating to the field of steel structure locking component detection technology. The utility model includes a screw, a connecting member on the surface of the screw, and a nut threadedly connected to the surface of the screw. A detection mechanism is provided on one side of the screw, including a V-shaped detection buckle disposed between the nut and the connecting member, a housing disposed on the top of the V-shaped detection buckle, and a scale plate fixedly connected to the rear side of the housing. This utility model, through the cooperation of the V-shaped detection buckle, spring, and scale plate, can intuitively and accurately reflect the bolt tightening state, avoiding measurement errors caused by sensor wear or insufficient power in traditional torque wrenches, thus improving the reliability of the detection results. The device has a simple structure, requires no electronic equipment or complex operation; operators only need to observe the scale value pointed to by the pointer to determine the tightening state, lowering the technical threshold and making it suitable for widespread use.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure locking component testing technology, and in particular relates to a bolt tightening testing device. Background Technology

[0002] Steel structures, as an important component of modern architecture, are widely used in high-rise buildings, large-span structures, bridges, and industrial plants due to their advantages such as light weight, high strength, and short construction period. However, during the installation of steel structures, the tightness of bolt connections directly affects the safety and stability of the overall structure. This is especially true in multi-story and high-rise steel structures, where testing devices are used to check the tightness of bolts.

[0003] Existing tightening testing devices are mostly torque wrenches, which determine whether a bolt has reached the predetermined tightening force by measuring the applied torque value. The testing accuracy of torque wrenches is easily affected by the condition of the instrument itself. For example, when the torque wrench's sensor is worn or damaged, its measurement results will deviate, leading to decreased testing accuracy and even potential misjudgments. Secondly, electronic torque wrenches rely on battery power. If the power is insufficient or the instrument runs out of power during testing, the testing work cannot proceed normally, seriously affecting the project schedule. Furthermore, the use of torque wrenches usually requires operators to have a certain level of experience and skill; otherwise, improper operation may affect the accuracy of the testing results.

[0004] To address this issue, we provide a bolt tightening detection device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a bolt tightening detection device, which solves the problem of strong dependence on torque wrench in the use of existing tightening detection devices by the cooperation of the detection mechanism and the fixing mechanism.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a bolt tightening detection device, comprising a screw, a connecting member on the surface of the screw, and a nut threadedly connected to the surface of the screw; a detection mechanism is provided on one side of the screw, the detection mechanism including a V-shaped detection buckle disposed between the nut and the connecting member, a housing disposed on the top of the V-shaped detection buckle, and a scale plate fixedly connected to the rear side of the housing; a fixing mechanism is provided on one side of the housing, the fixing mechanism including a fixing ring disposed on one side of the housing, and a vertical plate disposed on one side of the fixing ring.

[0008] The present invention is further configured such that the detection mechanism includes a spring fixedly connected to one side of the inside of the housing, a movable plate fixedly connected to one side of the spring, a movable rod fixedly connected to one side of the movable plate, and a pointer fixedly connected to one side of the movable rod.

[0009] The present invention is further configured such that the detection mechanism includes a groove formed on the top of the V-shaped detection buckle, and a rotating rod rotatably connected to one side inside the groove.

[0010] The present invention is further configured such that the fixing mechanism includes a limiting screw disposed on one side of the fixing ring and an anti-slip pad fixedly connected to one side of the fixing ring.

[0011] The present invention is further configured such that sliders are fixedly connected to the top and bottom of the movable plate, and the sliders are slidably connected to one side of the inside of the box.

[0012] The present invention is further configured such that a limiting block is fixedly connected to one side of the fixed ring, and the limiting plate is slidably connected to the vertical plate.

[0013] The present invention is further configured such that a connecting rod is fixedly connected to the bottom of the movable rod, and a connecting bracket is threadedly connected to the surface of the connecting rod.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model, through the cooperation of a V-shaped detection buckle, spring, and scale plate, can intuitively and accurately reflect the tightening status of bolts, avoiding measurement errors caused by sensor wear or insufficient power in traditional torque wrenches, thus improving the reliability of the detection results. The device has a simple structure and does not rely on electronic equipment or complex operations. Operators only need to observe the scale value pointed to by the pointer to judge the tightening status, which lowers the technical threshold and is suitable for widespread use.

[0016] 2. This utility model, through the setting of springs and movable mechanisms, enables the device to automatically reset after completing one test, allowing for repeated use and saving costs and time. The design of the rotating rod effectively reduces the friction between the nut and the V-shaped detection buckle, extending the service life of the device and ensuring the smoothness of the testing process. The design of the limiting screw, anti-slip pad, and limiting block in the fixing mechanism ensures the stability of the device during the testing process and avoids testing errors caused by loosening.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a bolt tightening detection device.

[0020] Figure 2 This is a diagram showing the removed state of a retaining ring in a bolt tightening detection device.

[0021] Figure 3 This is a cross-sectional view of the housing in a bolt tightening detection device.

[0022] Figure 4 This is a cross-sectional view of a V-shaped detection buckle in a bolt tightening detection device.

[0023] Figure 5 This is a rear view of a bolt tightening detection device.

[0024] In the attached diagram: 1. Screw; 2. Connector; 3. Nut; 4. V-shaped detection buckle; 5. Box body; 6. Scale plate; 7. Fixing ring; 8. Vertical plate; 9. Spring; 10. Movable plate; 11. Movable rod; 12. Pointer; 13. Groove; 14. Rotating rod; 15. Limit screw; 16. Anti-slip pad; 17. Connecting rod; 18. Connecting frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-5 This utility model is a bolt tightening detection device, including a screw 1, a connector 2 on the surface of the screw 1, and a nut 3 threadedly connected to the surface of the screw 1. When the connector 2 is connected to other structures, it is locked by the nut 3. A detection mechanism is provided on one side of the screw 1. The detection mechanism includes a V-shaped detection buckle 4 set between the nut 3 and the connector 2. The bottom of the V-shaped detection buckle 4 contacts the connector 2. A box 5 is set on the top of the V-shaped detection buckle 4. A scale plate 6 is fixedly connected to the rear side of the box 5. A fixing mechanism is provided on one side of the box 5. The fixing mechanism includes two fixing rings 7 set on one side of the box 5. The fixing rings 7 are symmetrically arranged front and back on one side of the vertical plate 8. The top of the fixing rings 7 is flush with the top of the screw 1. The vertical plate 8 is set on one side of the fixing rings 7 and is fixedly connected to the box 5.

[0028] Example 2

[0029] Please see Figures 1-5Based on Embodiment 1, the detection mechanism further includes a spring 9 fixedly connected to one side of the inside of the housing 5, a movable plate 10 fixedly connected to one side of the spring 9, a movable rod 11 fixedly connected to one side of the movable plate 10, and a pointer 12 fixedly connected to one side of the movable rod 11. The end of the movable rod 11 away from the movable plate 10 passes through the housing 5 and connects to the pointer 12 on the side away from the movable plate 10. The detection mechanism also includes a groove 13 opened on the top of the V-shaped detection buckle 4, and a rotating rod 14 rotatably connected to one side of the inside of the groove 13. The rotating rod 14 is rotatably connected to one side of the inside of the groove 13 through a bearing. The fixing mechanism also includes a limiting screw 15 set on one side of the fixing ring 7. The limiting screw 15 is threadedly connected to the front fixing ring 7. The two fixing rings 7 are... The limit screw 15 is fixed and limited, and the limit screw 15 is threaded with a limit cap. The limit cap is located behind the rear fixing ring 7. The anti-slip pad 16 is fixedly connected to one side of the fixing ring 7. The anti-slip pad 16 is in close contact with the screw 1. The top and bottom of the movable plate 10 are fixedly connected with sliders. The sliders are slidably connected to one side of the inside of the box 5. The top and bottom of the inside of the box 5 are provided with sliding grooves that match the sliders. The fixed ring 7 is fixedly connected to one side of the limit block. The limit plate is slidably connected to the vertical plate 8. The vertical plate 8 is provided with a limit groove that matches the limit block. The bottom of the movable rod 11 is fixedly connected with a connecting rod 17. The surface of the connecting rod 17 is threaded with a connecting bracket 18. The bottom of the connecting bracket 18 is fixedly connected to the V-shaped detection buckle 4.

[0030] The working principle of this utility model is as follows: The connector 2 and the component to be fastened are stacked on the screw 1, and the nut 3 is tightened to a preliminary fixed state. Then, the device is securely installed on the top of the screw 1 using a fixing mechanism, ensuring that the V-shaped detection buckle 4 is located between the nut 3 and the connector 2. Continuing to tighten the nut 3, the nut 3 compresses the V-shaped detection buckle 4. The V-shaped detection buckle 4, through the connecting bracket 18 and the movable rod 11, drives the pointer 12 to move, simultaneously stretching the spring 9. The displacement of the pointer 12 on the scale plate 6 visually reflects the change in tightening force. When the pointer 12 points to the preset scale value, it indicates that the nut 3 has reached the required tightening force. At this point, tightening the nut 3 is stopped, and the detection is complete.

[0031] After the test is completed, the fixing mechanism is released and the device is removed. The elastic restoring force of spring 9 drives the V-shaped detection buckle 4 and pointer 12 to reset, preparing for the next test. During the tightening of nut 3, the rotation of rod 14 effectively reduces the friction between nut 3 and V-shaped detection buckle 4, ensuring a smooth testing process and accurate results. Through the ingenious design of the mechanical structure, rapid and accurate detection of bolt tightening status is achieved, solving the problem of strong reliance on traditional torque wrenches, and demonstrating significant practicality and promotional value.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bolt tightening detection device, comprising a screw (1), characterized in that: The screw (1) is provided with a connector (2) on its surface, and a nut (3) is threaded onto the surface of the screw (1); A detection mechanism is provided on one side of the screw (1). The detection mechanism includes a V-shaped detection buckle (4) located between the nut (3) and the connector (2), a box (5) located on the top of the V-shaped detection buckle (4), and a scale plate (6) fixedly connected to the rear side of the box (5). A fixing mechanism is provided on one side of the box (5). The fixing mechanism includes a fixing ring (7) provided on one side of the box (5) and a vertical plate (8) provided on one side of the fixing ring (7).

2. The bolt tightening detection device according to claim 1, characterized in that: The detection mechanism also includes a spring (9) fixedly connected to one side of the inside of the housing (5), a movable plate (10) fixedly connected to one side of the spring (9), a movable rod (11) fixedly connected to one side of the movable plate (10), and a pointer (12) fixedly connected to one side of the movable rod (11).

3. The bolt tightening detection device according to claim 1, characterized in that: The detection mechanism also includes a groove (13) opened on the top of the V-shaped detection buckle (4) and a rotating rod (14) rotatably connected to one side inside the groove (13).

4. The bolt tightening detection device according to claim 1, characterized in that: The fixing mechanism also includes a limiting screw (15) disposed on one side of the fixing ring (7) and an anti-slip pad (16) fixedly connected to one side of the fixing ring (7).

5. A bolt tightening detection device according to claim 2, characterized in that: The top and bottom of the movable plate (10) are fixedly connected to sliders, which are slidably connected to one side of the inside of the box (5).

6. The bolt tightening detection device according to claim 4, characterized in that: A limiting block is fixedly connected to one side of the fixed ring (7), and the limiting plate is slidably connected to the vertical plate (8).

7. A bolt tightening detection device according to claim 2, characterized in that: The bottom of the movable rod (11) is fixedly connected to a connecting rod (17), and a connecting bracket (18) is threaded onto the surface of the connecting rod (17).

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