Device for detecting looseness of nut

Abstract

The utility model discloses a device for detecting looseness of a nut, belongs to the technical field of nut detection, and aims to solve the problems of limited application range and insufficient fixing stability of the conventional detection device. Sliding blocks are slidably connected into the sliding grooves, lantern rings are fixedly connected to the bottom ends of the sliding blocks, fixing mechanisms are fixedly connected to the bottom ends of the lantern rings, abutting blocks are fixedly connected to the side walls of the lantern rings, alarm lamps are fixedly connected to the upper ends of the supporting frames, lampshades are fixedly connected to the top ends of the supporting frames, and grooves are formed in the bottom ends of the supporting frames; the device for detecting looseness of the nut can be suitable for nuts of different sizes and models, the flexibility and adaptability of the device are improved, meanwhile, in the long-term use process, abrasion or deformation of the contact face between the clamping plate and the nut can be avoided, looseness of the nut caused by vibration is prevented, and the service life of the device is prolonged. And the long-term stability and reliability of the device are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of nut detection, in particular to a device for detecting the looseness of a nut. Background Art

[0002] Most equipment in the wind power industry will vibrate due to long-term external forces during use, which will cause the bolts and nuts to loosen. The loosening of nuts seriously affects the safety of materials and personnel, but the existing detection methods still have certain shortcomings in detection.

[0003] For example, a device for detecting loose nuts with announcement number CN213985641U can automatically detect the looseness of nuts, give warnings through the operation of an external alarm, and provide visual reminders for maintenance personnel, so that they can more conveniently perform the maintenance process. However, existing detection devices can only detect nuts of specific models. When nuts of different sizes are replaced, different models of devices are required, which increases the cost. At the same time, due to the limited contact area between the arc-shaped clamp and the outer wall of the nut, this fixing method is easily affected by external forces, causing the nut to loosen, affecting the detection results.

[0004] Therefore, a device for detecting the looseness of a nut is urgently needed to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a device for detecting nut loosening, so as to solve the problem raised by the above-mentioned background technology that the existing detection devices on the market can only detect nuts of specific models. When replacing nuts of different sizes, different models of devices are required, which increases the cost. At the same time, due to the limited contact area between the arc-shaped clamping plate and the outer wall of the nut, this fixing method is easily affected by external forces, resulting in loosening of the nut and affecting the detection results.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for detecting loose nuts, comprising a support frame, the inner surface of the support frame is provided with a thread, and is characterized in that it also includes: an open arc-shaped slide groove is opened at the bottom end of the support frame; and a slider is slidably connected in the slide groove, a collar is fixedly connected at the bottom end of the slider, and a fixing mechanism is fixedly connected at the bottom end of the collar, and a stop block is fixedly connected to the side wall of the collar, an alarm light is fixedly connected at the upper end of the support frame, and a lampshade is fixedly connected at the top end of the support frame, and a groove is opened at the bottom end of the support frame, a push rod is slidably connected in the groove, and the bottom end of the push rod extends through the groove and is fixedly connected to the top end of the matching block.

[0007] Preferably, the fixing mechanism includes: a fixing block, a threaded rod, a clamping plate and a rubber pad, the fixing block is fixedly arranged on a ring, and the threaded rod is connected to the inner thread of the ring, the left and right ends of the threaded rod both extend through the fixing block, and one end of the threaded rod is fixedly connected to the side wall of the clamping plate, and the end of the clamping plate away from the threaded rod is fixedly connected to the rubber pad.

[0008] Preferably, a plurality of the fixing blocks are arranged in a circular array about the center point of the ring, and the clamping plate is arranged in an arc-shaped structure.

[0009] Preferably, four of the stop blocks are provided, and an inclined surface is provided on the upper end surface of the stop block, and the four stop blocks are arranged in a circular array about the center point of the ring.

[0010] Preferably, a control switch is installed on the inner wall of the groove, and the control switch is aligned with the top of the push rod. There are four grooves, and the four grooves are symmetrically arranged in pairs. An inclined surface is provided on the matching block at the bottom end of the push rod, and the matching block corresponds to the stop block.

[0011] The support frame is provided with a button battery slot, and the button battery slot is connected with the alarm light through a cable.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the device for detecting nut loosening can be applied to nuts of different sizes and models, thus improving the flexibility and adaptability of the device. At the same time, during long-term use, the contact surface between the clamping plate and the nut can be prevented from being worn or deformed, and the nut can be prevented from being loosened due to vibration, thus ensuring the long-term stability and reliability of the device. The specific contents are as follows:

[0013] 1. A clamping plate and a rubber pad are provided. By rotating the threaded rod, the threaded rod is engaged with the thread of the fixed block, thereby driving the clamping plate and the rubber pad close to the outer wall of the nut. At this time, the rubber pad will first fit with the outer wall of the nut and deform under the extrusion of the clamping plate, thereby clamping the nut, so that the device can be suitable for nuts of different sizes and models, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the top-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 4 It is a schematic diagram of the side section structure of the utility model.

[0018] In the figure: 1, support frame; 2, slide groove; 3, slider; 4, ring; 5, stop block; 6, fixing mechanism; 601, fixing block; 602, threaded rod; 603, clamping plate; 604, rubber pad; 7, warning light; 701, button battery slot; 9, lampshade; 10, groove; 11, push rod; 12, matching block. DETAILED DESCRIPTION

[0019] 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.

[0020] Example 1: Please refer to Figure 1-Figure 4 As shown, the utility model provides a technical solution: a device for detecting the looseness of a nut, comprising a support frame 1, wherein the inner surface of the support frame 1 is provided with threads.

[0021] This technical solution utilizes the setting of the support frame 1. When the nut is tested for anti-loosening, the support frame 1 is placed on the screw rod, and then the support frame 1 is screwed, so that the support frame 1 drives the ring 4 and the fixing mechanism 6 to move downward at the same time. When the fixing mechanism 6 moves to align with the nut, the fixing mechanism 6 is used to fix the nut to complete the installation.

[0022] Embodiment 2: The technical content disclosed in this embodiment is an improvement made on the basis of the above-mentioned embodiment 1. The existing detection device can only detect nuts of a specific type. When replacing nuts of different sizes, different types of devices are required, which increases the cost. At the same time, due to the limited contact area between the arc-shaped clamping plate and the outer wall of the nut, this fixing method is easily affected by external forces, causing the nut to loosen and affecting the detection results. The technical solution is as follows Figure 1 and Figure 3As shown, a fixing mechanism 6 of a detection device is disclosed, wherein an open arc-shaped slide groove 2 is provided at the bottom end of the support frame 1, and a slider 3 is slidably connected in the slide groove 2, a collar 4 is fixedly connected at the bottom end of the slider 3, and a fixing mechanism 6 is fixedly connected at the bottom end of the collar 4, wherein the fixing mechanism 6 comprises: a fixing block 601, a threaded rod 602, a clamping plate 603 and a rubber pad 604, wherein the fixing block 601 is fixedly arranged on the collar 4, and the threaded rod 602 is threadedly connected in the collar 4, both left and right ends of the threaded rod 602 extend through the fixing block 601, and one end of the threaded rod 602 is fixedly connected to the side wall of the clamping plate 603, and one end of the clamping plate 603 away from the threaded rod 602 is fixedly connected to the rubber pad 604, a plurality of fixing blocks 601 are arranged in a circular array about the center point of the collar 4, and the clamping plate 603 is arranged in an arc-shaped structure.

[0023] In this technical solution, Figure 3 As shown, by utilizing the setting of the threaded rod 602, the rotating threaded rod 602 is threadedly engaged with the fixed block 601, driving the clamping plate 603 and the rubber pad 604 to move closer to or away from each other, thereby clamping nuts of different sizes and models. At the same time, the clamping plate 603 and the rubber pad 604 can fit tightly with one side of the nut to prevent the nut from loosening, thereby improving the accuracy of detection.

[0024] Its use is as Figure 1 According to the technical solution shown, first, when the fixing mechanism 6 moves to be aligned with the nut, the fixing block 601 will be aligned with the outer wall of the nut. Since the nut is usually arranged in a hexagonal structure, the fixing block 601 will be aligned with the edges of the nut one by one. Then, the threaded rod 602 is rotated, and the threaded rod 602 is threadedly engaged with the fixing block 601, thereby driving the clamping plate 603 to approach the nut. Then, the rubber pad 604 on the side of the clamping plate 603 will first fit with the outer wall of the nut. At this time, the threaded rod 602 is continued to be rotated, so that the clamping plate 603 squeezes the rubber pad 604 to deform, thereby clamping the nut.

[0025] Embodiment 3: The technical content disclosed in this embodiment is a further improvement made on the basis of the above-mentioned embodiment 1 and embodiment 2. When looseness occurs, it can provide a visual reminder for the maintenance personnel, so that the maintenance personnel can perform the maintenance process more conveniently. In order to further solve this technical problem, this technical solution is as follows: Figure 2 and Figure 4As shown, an alarm mechanism of a detection device is disclosed, wherein a stopper 5 is fixedly connected to the side wall of a collar 4, an alarm light 7 is fixedly connected to the upper end of the support frame 1, and a lampshade 9 is fixedly connected to the top of the support frame 1, and a groove 10 is provided at the bottom end of the support frame 1, a push rod 11 is slidably connected in the groove 10, and the bottom end of the push rod 11 extends through the groove 10 and is fixedly connected to the top of a matching block 12, four stoppers 5 are provided, and an inclined surface is provided on the upper end surface of the stopper 5, and the four stoppers 5 are arranged in a circular array about the center point of the collar 4, a control switch is installed on the inner wall of the groove 10, and the control switch is aligned with the top of the push rod 11, four grooves 10 are provided, and the four grooves 10 are symmetrically arranged in pairs, an inclined surface is provided on the matching block 12 at the bottom end of the push rod 11, and the matching block 12 corresponds to the stopper 5, and a button battery slot 701 is provided on the support frame 1, and the button battery slot 701 is connected to the alarm light 7 through a cable.

[0026] In this technical solution, Figure 2 As shown, by utilizing the arrangement of the stop block 5 and the matching block 12, when the nut becomes loose, the stop block 5 will rotate driven by the collar 4, thereby squeezing the matching block 12, causing the matching block 12 to move upward, and driving the push rod 11 to move through the matching block 12, turning on the switch connected to the alarm light 7, causing the alarm light 7 to sound an alarm. The structure is simple, the detection accuracy is high, and it is easy to carry and install.

[0027] Its use is as Figure 4 According to the technical solution shown, when the nut is loosened due to vibration, the nut will drive the fixed block 601 to rotate, and the fixed block 601 will drive the collar 4 to rotate, so that the slider 3 on the collar 4 slides along the slide groove 2, and then the collar 4 will drive the stop block 5 to rotate, so that the stop block 5 squeezes the matching block 12, and the matching block 12 squeezed will slide along the inclined surface of the upper end of the stop block 5, so that the push rod 11 is pushed upward in the groove 10 through the stop block 5, and the push rod 11 squeezes the switch in the groove 10, so that the alarm light 7 sounds an alarm;

[0028] After the nut is reset, the stop block 5 is reset, and the matching block 12 moves downward under the action of its own gravity, so that the push rod 11 is separated from the switch, and the warning light 7 stops flashing.

[0029] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for detecting nut loosening, comprising a support frame (1), wherein the inner surface of the support frame (1) is provided with threads, and wherein: Also includes: The bottom end of the support frame (1) is provided with an open arc-shaped slide groove (2); a slider (3) is slidably connected in the slide groove (2); a collar (4) is fixedly connected to the bottom end of the slider (3); a fixing mechanism (6) is fixedly connected to the bottom end of the collar (4); a stop block (5) is fixedly connected to the side wall of the collar (4); an alarm light (7) is fixedly connected to the top end of the support frame (1); a lampshade (9) is fixedly connected to the top end of the support frame (1); a groove (10) is provided at the bottom end of the support frame (1); a push rod (11) is slidably connected in the groove (10); and the bottom end of the push rod (11) extends through the groove (10) and is fixedly connected to the top end of the matching block (12).

2. A device for detecting nut loosening according to claim 1, characterized in that: The fixing mechanism (6) comprises: a fixing block (601), a threaded rod (602), a clamping plate (603) and a rubber pad (604); the fixing block (601) is fixedly arranged on the collar (4); the collar (4) is internally threadedly connected to the threaded rod (602); both left and right ends of the threaded rod (602) extend through the fixing block (601); one end of the threaded rod (602) is fixedly connected to a side wall of the clamping plate (603); and one end of the clamping plate (603) away from the threaded rod (602) is fixedly connected to the rubber pad (604).

3. A device for detecting nut loosening according to claim 2, characterized in that: A plurality of the fixing blocks (601) are arranged in a circular array about the center point of the collar (4), and the clamping plate (603) is arranged in an arc-shaped structure.

4. A device for detecting nut loosening according to claim 1, characterized in that: Four of the stop blocks (5) are provided, and an inclined surface is provided on the upper end surface of the stop block (5), and the four stop blocks (5) are arranged in a circular array about the center point of the collar (4).

5. The device for detecting nut loosening according to claim 1, characterized in that: A control switch is installed on the inner wall of the groove (10), and the control switch is aligned with the top of the push rod (11). There are four grooves (10), and the four grooves (10) are symmetrically arranged in pairs. An inclined surface is provided on the matching block (12) at the bottom end of the push rod (11), and the matching block (12) corresponds to the stop block (5).

6. The device for detecting nut loosening according to claim 1, characterized in that: The support frame (1) is provided with a button battery slot (701), and the button battery slot (701) is connected to the alarm light (7) via a cable.

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