Looseness detection device for bolt and nut fastener

Abstract

The utility model discloses a looseness detection device for a bolt and nut fastener, which relates to the technical field of bolt and nut fastener detection and comprises a mounting box, an adjusting mechanism is arranged on one side of the bottom of the mounting box, a detection mechanism is arranged at the top of the mounting box, and a connecting plate is fixedly connected to the bottom end of the adjusting mechanism. A second through hole is formed in the top of the connecting plate in a penetrating manner; according to the looseness detection device for the bolt and nut fastener, when a nut is loosened, a rotating column rotates to drive a large gear to rotate, so that the rotating angle of a small gear is increased, a rotating shaft is driven to rotate, an infrared transmitter rotates, and when the infrared transmitter is opposite to an infrared receiver, a signal is detected, and looseness is found; the small looseness is amplified, the detection precision is improved, the manual detection means is avoided, a large amount of manpower is saved, the detection efficiency is greatly improved, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt nut fastener detection technical field, specifically is a loosening detection device of bolt nut fastener. BACKGROUND

[0002] Bolt nut fastener is convenient to use, is everywhere in daily production and life, is a commonly used connecting, fixed equipment part, and a large number of fasteners are installed in the track of large steel frame structure track and the track of hoisting cage in some important places, but these equipment will vibrate in the use process due to long-term continuous external force, which will inevitably cause the loosening of bolt nut fastener, and the loosening of fastener seriously affects the safety of materials and persons, so it is necessary to grasp the loosening condition of fastener in real time.

[0003] The current detection method is artificial inspection for all fasteners, and the fasteners are detected one by one by using wrench, but due to the large number of fasteners, artificial detection means needs to consume a lot of manpower and material resources, reduces the effective time of production operation, therefore we provide a loosening detection device of bolt nut fastener. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a loosening detection device of bolt nut fastener to solve the problem that the current detection method is proposed in the prior art, due to the large number of fasteners, artificial detection means needs to consume a lot of manpower and material resources, reduces the effective time of production operation.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a loosening detection device of bolt nut fastener, including installation box, the bottom side of installation box is provided with adjusting mechanism, the top of installation box is provided with detection mechanism, the bottom end of adjusting mechanism is fixedly connected with connecting plate, the top of connecting plate is penetrated and is provided with second through-hole.

[0006] Preferably, the detection mechanism includes a rotating column penetratingly and rotatably connected between the upper and lower sides of the inner cavity of the mounting box, a hexagonal groove is formed in the top middle portion of the rotating column, a first through-hole is formed in the bottom of the hexagonal groove, a large gear is fixedly connected to the outer side of the rotating column, a rotating shaft is penetratingly and rotatably connected between the upper and lower sides of the inner cavity of the mounting box, a small gear is fixedly connected to the outer side of the rotating shaft, the top end of the rotating shaft is fixedly connected with a rotating disc, a rotating ring is sleeved on the outer side of the rotating disc, an infrared emitter is fixedly connected to the top of the rotating ring, an infrared receiver is fixedly connected to one side of the top of the mounting box.

[0007] Preferably, the detection mechanism further comprises a contraction cavity opened on the outer side of the rotating disc, one side of the inside of the contraction cavity is fixedly connected with a connecting spring, one end of the connecting spring is fixedly connected with a clamping head, and the inner side wall of the rotating ring is uniformly provided with a clamping groove, so that the rotating ring can be positioned after being rotated, and the infrared emitter and the infrared receiver are conveniently dislocated.

[0008] Preferably, the clamping head is slidingly connected to the inside of the contraction cavity, and the end of the clamping head is provided with a hemispherical surface, and the clamping groove is a hemispherical groove, so that the clamping groove can extrude the clamping head to move the clamping head.

[0009] Preferably, the first through hole and the second through hole have the same center, the bolt is conveniently inserted, the large gear is in meshing connection with the small gear, the upper and lower parts of the outer side of the rotating column are fixedly connected with a blocking ring to limit the rotating column, and the bottom of the rotating shaft is fixedly connected with a blocking disc to limit the rotating shaft.

[0010] Preferably, the adjusting mechanism comprises a sleeve fixedly connected to one side of the bottom of the mounting box, limit rods are fixedly connected to one side of the top of the connecting plate, a bearing is inlaid in one side of the top of the connecting plate and located between the two limit rods, a threaded cylinder is fixedly connected to the inner ring side wall of the bearing, a knob is fixedly connected to the outer side top of the threaded cylinder, and a screw rod is screwed in the inside of the threaded cylinder.

[0011] Preferably, the limit rods are slidingly connected to the inside of the sleeve, and the top end of the limit rods is fixedly connected with a baffle to prevent the limit rods from falling out of the sleeve, and the screw rod is screwed to the bottom of the mounting box.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] 1、The application, by means of the detection mechanism, after the nut is installed, the rotating ring is rotated, due to the tightening of the nut, the rotating ring is rotated on the outer side of the rotating disc, the clamping groove extrudes the clamping head, the clamping head is contracted, the infrared emitter and the infrared receiver are dislocated, when the nut is loosened, the rotating column is rotated, the large gear is rotated, the rotating angle of the small gear is increased, the rotating shaft is driven to rotate, the infrared emitter is rotated, when the infrared emitter and the infrared receiver are opposite, a signal is detected, so that the loosening is found, the slight loosening is amplified, the detection precision is improved, manual detection means is avoided, a large amount of manpower is saved, and the detection efficiency is greatly improved, time and labor are saved.

[0014] 2、The application utilizes the setting of the adjusting mechanism, drives the threaded cylinder to rotate through rotating the knob, utilizes the cooperation of the limiting rod and the sleeve to limit between the mounting box and the connecting plate, drives the screw rod to move when the threaded cylinder rotates, adjusts the distance between the mounting box and the connecting plate, is convenient for adjusting according to the thickness of the screwing object, is convenient for applying to various workpieces, and improves the applicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the first through hole opening structure schematic view of the utility model;

[0017] Figure 3 It is the adjusting mechanism structure schematic view of the utility model;

[0018] Figure 4 It is the connecting spring installation structure schematic view of the utility model;

[0019] Figure 5 It is the adjusting mechanism structure schematic view of the utility model.

[0020] Mark number in drawing: 100, mounting box; 200, adjusting mechanism; 210, sleeve; 220, limiting rod; 230, bearing; 240, threaded cylinder; 250, knob; 260, screw rod; 300, detection mechanism; 310, rotating column; 311, hexagonal groove; 312, first through hole; 320, large gear; 330, rotating shaft; 340, small gear; 350, rotating disc; 351, contraction cavity; 352, connecting spring; 353, clamp; 360, rotating ring; 361, clamping groove; 370, infrared emitter; 380, infrared receiver; 400, connecting plate; 410, second through hole. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Embodiment: as Figures 1-5The utility model provides a loose detection device of bolt nut fastener's technical scheme, including installation box 100, the bottom side of installation box 100 is provided with adjusting mechanism 200, the top of installation box 100 is provided with detection mechanism 300, the bottom fixedly connected of adjusting mechanism 200 has connecting plate 400, the top of connecting plate 400 is through and is provided with second through -hole 410.

[0023] Please refer to Figure 2 、 Figure 3 And Figure 4 , detection mechanism 300 includes the rotation column 310 between the upper side of the inner chamber of installation box 100 and the lower side and is connected, the top middle part of rotation column 310 is provided with hexagonal groove 311, the bottom of hexagonal groove 311 is through and is provided with first through -hole 312, the outside fixedly connected of rotation column 310 has big gear 320, the upper side of the inner chamber of installation box 100 and the lower side are through and are connected with the rotation of shaft 330, the outside fixedly connected of rotation shaft 330 has small gear 340, the top end fixedly connected of rotation shaft 330 has rotary disc 350, the outside of rotary disc 350 is sleeved with rotating ring 360, the top fixedly connected of rotating ring 360 has infrared emitter 370, the top side fixedly connected of installation box 100 has infrared receiver 380;Detection mechanism 300 still includes the contraction cavity 351 being provided in the outside of rotary disc 350, the inside one side fixedly connected of contraction cavity 351 has connecting spring 352, one end fixedly connected of connecting spring 352 has chuck 353, the inside wall of rotating ring 360 is evenly provided with clamping groove 361;Chuck 353 is slidably connected in the inside of contraction cavity 351, and the end of chuck 353 is provided with hemispherical surface, and clamping groove 361 is hemispherical groove;The center of first through -hole 312 and second through -hole 410 is same, big gear 320 is connected with small gear 340 between the meshing, the upper and lower parts fixedly connected of the outside of rotation column 310 have the baffle ring, the bottom fixedly connected of rotation shaft 330 has baffle disc;With the setting of detection mechanism 300, after nut installation is completed, rotating rotating ring 360, because nut is tightened, makes rotating ring 360 rotate outside rotary disc 350, makes chuck 353 extrude to chuck 353, makes chuck 353 contract, makes infrared emitter 370 and infrared receiver 380 misalign, when nut loosens, makes rotation column 310 rotate, drives big gear 320 to rotate, and makes small gear 340 rotation angle increase, thereby drive rotation shaft 330 to rotate, make infrared emitter 370 rotate, when infrared emitter 370 and infrared receiver 380 are opposite, detect signal, thereby discover loosening, amplify tiny loosening, improve the precision of detection, avoid using artificial detection means, save a large amount of manpower, make detection efficiency greatly improve, save time and effort.

[0024] Please refer to Figure 5The adjusting mechanism 200 comprises a sleeve 210 fixedly connected to one side of the bottom of the mounting box 100, limit rods 220 fixedly connected to one side of the top of the connecting plate 400, bearings 230 embedded in one side of the top of the connecting plate 400 and located between the two limit rods 220, a threaded cylinder 240 fixedly connected to the outer side of the top of the threaded cylinder 240, a knob 250 fixedly connected to the outer side of the top of the threaded cylinder 240, and a screw rod 260 screwed in the threaded cylinder 240; the limit rods 220 are slidingly connected to the inside of the sleeve 210, and the top end of the limit rod 220 is fixedly connected with a baffle; the screw rod 260 is screwed to the bottom of the mounting box 100; by rotating the knob 250, the threaded cylinder 240 is driven to rotate, the mounting box 100 and the connecting plate 400 are limited by the cooperation of the limit rods 220 and the sleeve 210, the screw rod 260 is driven to move when the threaded cylinder 240 rotates, and the distance between the mounting box 100 and the connecting plate 400 is adjusted, so that the thickness of the screwed object can be adjusted, a plurality of different workpieces can be applied, and the applicability of the device is improved.

[0025] In use, first, the knob 250 is rotated to drive the threaded cylinder 240 to rotate, the mounting box 100 and the connecting plate 400 are limited by the cooperation of the limit rods 220 and the sleeve 210, the screw rod 260 is driven to move when the threaded cylinder 240 rotates, the mounting box 100 and the connecting plate 400 are moved away from each other, the distance between the mounting box 100 and the connecting plate 400 is adjusted, then the connected object is placed between the mounting box 100 and the connecting plate 400, the knob 250 is reversely rotated to move the mounting box 100 and the connecting plate 400 close to each other, the object is clamped, then the nut is placed in the hexagonal groove 311, the bolt is passed through the second through hole 410 and the first through hole 312, the bolt and the nut are screwed, then the rotating ring 360 is rotated, the nut is tightened, the rotating ring 360 is rotated outside the rotating disc 350, the clamping groove 361 is pressed against the clamping head 353, the clamping head 353 is retracted, the infrared emitter 370 and the infrared receiver 380 are misaligned, when the clamping head 353 is aligned with the clamping groove 361, the clamping head 353 is embedded in the clamping groove 361 by the reset of the connecting spring 352, the rotating ring 360 is fixed, when the nut is loosened, the rotating column 310 is rotated, the large gear 320 is rotated, the angle of the small gear 340 is increased, the slight loosening is amplified, the rotating shaft 330 is rotated, the infrared emitter 370 is rotated, when the infrared emitter 370 is opposite to the infrared receiver 380, a signal is detected and transmitted to the computer, and the loosening is found.

[0026] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A loosening detection device of a bolt-nut fastener, characterized by: Including the installation box (100), the bottom side of the installation box (100) is provided with an adjusting mechanism (200), the top of the installation box (100) is provided with a detection mechanism (300), the bottom end of the adjusting mechanism (200) is fixedly connected with a connecting plate (400), and the top of the connecting plate (400) is provided with a second through hole (410); The detection mechanism (300) includes a rotating column (310) rotatably connected between the upper and lower sides of the inner cavity of the installation box (100), a hexagonal groove (311) is formed in the top middle portion of the rotating column (310), a first through hole (312) is formed in the bottom of the hexagonal groove (311), a large gear (320) is fixedly connected to the outer side of the rotating column (310), a rotating shaft (330) is rotatably connected between the upper and lower sides of the inner cavity of the installation box (100), a small gear (340) is fixedly connected to the outer side of the rotating shaft (330), a rotating disc (350) is fixedly connected to the top end of the rotating shaft (330), a rotating ring (360) is sleeved to the outer side of the rotating disc (350), an infrared emitter (370) is fixedly connected to the top of the rotating ring (360), and an infrared receiver (380) is fixedly connected to one side of the top of the installation box (100).

2. A bolt and nut fastener loosening detection device according to claim 1, characterized in that: The detection mechanism (300) further includes a contraction cavity (351) formed in the outer side of the rotating disc (350), a connecting spring (352) is fixedly connected to the inner side of the contraction cavity (351), one end of the connecting spring (352) is fixedly connected with a clamping head (353), and the inner side wall of the rotating ring (360) is uniformly provided with a clamping groove (361).

3. A bolt and nut fastener loosening detection device according to claim 2, characterised in that: The clamping head (353) is slidingly connected to the inside of the contraction cavity (351), and the end portion of the clamping head (353) is provided with a hemispherical surface, and the clamping groove (361) is a hemispherical groove.

4. A bolt and nut fastener loosening detection device according to claim 1, characterized in that: The centers of the first through hole (312) and the second through hole (410) are the same, the large gear (320) and the small gear (340) are in meshing connection, the upper and lower portions of the outer side of the rotating column (310) are fixedly connected with a blocking ring, and the bottom of the rotating shaft (330) is fixedly connected with a blocking disc.

5. A bolt and nut fastener loosening detection device according to claim 1, characterized in that: The adjusting mechanism (200) includes a sleeve (210) fixedly connected to the bottom side of the installation box (100), limit rods (220) are fixedly connected to the top side of the connecting plate (400) in a symmetrical manner, a bearing (230) is embedded in the top side of the connecting plate (400) and located between the two limit rods (220), a threaded cylinder (240) is fixedly connected to the inner ring side wall of the bearing (230), a knob (250) is fixedly connected to the outer side top of the threaded cylinder (240), and a screw rod (260) is screwed in the threaded cylinder (240).

6. A bolt and nut fastener loosening detection device according to claim 5, characterised in that: The limit rods (220) are slidingly connected to the inside of the sleeve (210), and the top end of the limit rod (220) is fixedly connected with a baffle, and the screw rod (260) is screwed in the bottom of the installation box (100).

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