CN216951212U - Top cover type nut loosening intelligent early warning piece and integrated intelligent nut - Google Patents

Abstract

The utility model discloses a top cover type nut loosening intelligent early warning piece and an integrated intelligent nut. By adopting the technical scheme, the intelligent early warning piece for loosening the top cover type nut not only greatly reduces the processing difficulty and the assembly difficulty of parts of the alarm device, but also reduces the radial size of the early warning piece for loosening the nut, so that the intelligent early warning piece can be installed in a narrower installation space, the applicability is improved, meanwhile, the sealing and waterproof design is facilitated to be simplified, the alarm device can be better protected, and the service life is prolonged; the integral type early warning nut not only possesses not hard up all advantages of intelligent early warning spare of top cap formula nut, can directly realize threaded connection with the bolt cooperation moreover, has cancelled solitary nut, has reduced the quantity of spare part, has reduced the installation degree of difficulty, has promoted the installation effectiveness.

Description

Top cover type nut loosening intelligent early warning piece and integrated intelligent nut

Technical Field

The utility model relates to the technical field of threaded connection parts, in particular to a top cover type nut loosening intelligent early warning part and an integrated intelligent nut.

Background

The bolt and the nut are matched to form threaded connection, and the load borne by the bolt can fluctuate in the using process, so that the nut is likely to loosen after long-term use. For part of application scenarios, the nut is not acceptable to be loosened, and even slight loosening can bring about serious influence.

Therefore, various intelligent nuts are produced on the market, so that the small looseness of the nuts can be expected to be found in time, an alarm can be given out immediately, people can conveniently and quickly identify the nuts, and the nuts are overhauled and maintained. However, in practical application, some intelligent nuts install the alarm device in the circumferential direction of the base body, so that the alarm device is difficult to machine and assemble, and the alarm device is large in radial size and cannot be applied to narrow installation space.

It is urgent to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a top cover type nut loosening intelligent early warning piece and an integrated intelligent nut.

The technical scheme is as follows:

the utility model provides a not hard up intelligent early warning spare of top cap formula nut, includes device base member, alarm device and sets up the trigger structure in the device base member, and its main points lie in: an internal thread mounting hole matched with the bolt thread is formed in the end face of one end of the device base body, and the internal thread mounting hole is of a blind hole structure;

a top cover covers the end face of one end, far away from the internal thread mounting hole, of the device base body, the top cover and the device base body enclose to form a mounting cavity, and the alarm device is mounted in the mounting cavity;

when the device substrate is driven by the primary nut to rotate towards the direction of unscrewing the bolt, the triggering structure starts the alarm device.

Structure more than adopting sets up alarm device in the one end of device base member, not only greatly reduced the processing degree of difficulty and the assembly degree of difficulty of alarm device spare part, reduced the not hard up radial size of early warning piece of high sensitivity nut moreover to can install in more constrictive installation space, improve the suitability, still be favorable to simplifying simultaneously sealed waterproof design, can protect alarm device better, promote life.

Preferably, the method comprises the following steps: the alarm device comprises an alarm circuit board, a battery and a press switch, wherein the battery and the press switch are both arranged on the alarm circuit board, an alarm module is integrated on the alarm circuit board, the battery is used for supplying power to the alarm circuit board, and the press switch is located on one side, close to the device base body, of the alarm circuit board and used for starting the alarm module.

By adopting the structure, the device is simple and reliable.

Preferably, the method comprises the following steps: the device comprises a device body, a trigger structure, a plurality of push rod slideways, an elastic sealing gasket, a primary nut and a primary nut, wherein the trigger structure comprises push rod slideways which are respectively in one-to-one correspondence with the push switches, each push rod slideway is parallel to the axial direction of an internal thread mounting hole and penetrates through the end surfaces of two ends of the device body, each push switch respectively protrudes out of one end of the corresponding push rod slideway, a push rod which can slide along the push rod slideway is arranged in each push rod slideway, one end of each push rod, which is close to the corresponding push switch, is elastically supported on the elastic sealing gasket, the elastic sealing gasket is used for sealing the mounting cavity and can drive one end, which is far away from the corresponding push switch, of the corresponding push rod to protrude out of the corresponding end surface of the device body, so that each push rod is supported on the adjacent end surface of the primary nut;

when the primary nut is loosened, the primary nut rotates and is close to the device substrate, so that one or more ejector rods can be pressed, the pressing switch is pressed through the corresponding elastic sealing gasket, and the alarm module is started.

By adopting the structure, the trigger structure is simple and reliable, easy to assemble and low in cost.

Preferably, the method comprises the following steps: the trigger structure comprises a trigger ring piece which is rotatably arranged on the wall of the internal thread mounting hole, the trigger ring piece is sleeved on the bolt, and the friction force between the trigger ring piece and the bolt is greater than the friction force between the device substrate and the bolt;

a push rod slideway parallel to the rotation axis of the trigger ring piece is arranged in the device substrate, an elastic sealing gasket for sealing the installation cavity is arranged at one end of the push rod slideway, which is opposite to the push switch, a push rod capable of sliding along the push rod slideway is arranged in the push rod slideway, and one end of the push rod is elastically supported on the elastic sealing gasket;

the outer peripheral surface of the trigger ring piece is provided with a limit bump, the device substrate is provided with a section of rotary limit groove in sliding fit with the limit bump, one side of the limit bump, which is close to the ejector rod, is provided with a trigger ramp, the trigger ramp is provided with a trigger high position and a non-trigger low position, the height of the trigger high position protruding out of the trigger ring piece is higher than the height of the non-trigger low position protruding out of the trigger ring piece, and one end part of the ejector rod, which is far away from the elastic sealing gasket, is supported on the trigger ramp;

when the device substrate rotates towards the direction of screwing the bolt, the limiting lug is abutted against the rear end groove wall of the rotating limiting groove in the current rotating direction, at the moment, the end part of the ejector rod, far away from the elastic sealing gasket, is supported on a non-triggering low position, the elastic sealing gasket releases the press switch, and the alarm module stops; when the device substrate is driven by the primary nut to rotate reversely, the limiting convex block is abutted against the wall of the other end of the rotating limiting groove, the end part of the ejector rod, far away from the elastic sealing gasket, of one end is supported on the trigger high position, the elastic sealing gasket presses the press switch under the driving of the ejector rod, and the alarm module is started.

By adopting the structure, the elastic sealing gasket can be used as a driving force for driving the ejector rod to elastically reset, and the mounting cavity can be reliably sealed, so that the alarm device is completely sealed in the mounting cavity, and external impurities such as water, dust and the like can not enter the mounting cavity completely; moreover, the push switch can be completely positioned in the installation cavity and isolated from the outside relative to the contact switch; thereby through above improvement, ensured alarm device operational environment's stability and reliability to the corrosion resisting property and the life of nut not hard up early warning spare have been promoted by a wide margin.

Preferably, the method comprises the following steps: the trigger ramp at least comprises a matched inclined surface section which is obliquely arranged, the trigger high position is positioned at or close to one end of the matched inclined surface section, the non-trigger low position is positioned at or close to the other end of the matched inclined surface section, and the height of the matched inclined surface section which protrudes out of the trigger ring piece is gradually reduced from one end close to the trigger high position to one end close to the non-trigger low position.

Structure more than adopting, cooperation inclined plane section structure is level and smooth, not only can drive the ejector pin reliably and steadily, avoids taking place the jamming problem, and cooperation inclined plane section belongs to linear gradual change moreover, easily later stage according to the condition adaptability ground adjustment response precision.

Preferably, the method comprises the following steps: the two ends of the matched inclined plane section are respectively provided with a standby straight section and an alarm straight section, the heights of all positions of the standby straight section, which protrude out of the trigger ring piece, are the same, the non-trigger low position is arranged on the standby straight section, the heights of all positions of the alarm straight section, which protrude out of the trigger ring piece, are the same, and the trigger high position is arranged on the alarm straight section.

By adopting the structure, the standby straight section is designed, so that the ejector rod can be more reliably supported when the primary nut is not loosened, and the possibility of false alarm is reduced; through the design of the alarm straight section, when the alarm is given, the ejector rod can be supported more reliably, and the possibility of alarm accident relief is reduced.

Preferably, the method comprises the following steps: the trigger structure comprises a trigger ring piece which is rotatably arranged on the wall of the internal thread mounting hole, the trigger ring piece is sleeved on the bolt, and the friction force between the trigger ring piece and the bolt is greater than the friction force between the device substrate and the bolt;

the outer peripheral surface of the trigger ring piece is provided with a limiting lug, the device substrate is provided with a section of rotating limiting groove in sliding fit with the limiting lug, one end face of the limiting lug is provided with a fixed contact, and the groove wall at one end of the rotating limiting groove, which is adjacent to the fixed contact, is provided with a movable contact matched with the fixed contact;

when the device substrate rotates towards the direction of screwing the bolt, the limiting lug is abutted against the groove wall at one end of the rotating limiting groove far away from the movable contact so as to drive the fixed contact and the movable contact to keep separated, and the alarm device is stopped; when the device base body is driven by the primary nut to rotate reversely, the device base body drives the movable contact to move to be abutted against the fixed contact, and the alarm device is started.

By adopting the structure, the fixed contact and the movable contact are used as the switches of the alarm device, the structure is simple and reliable, the assembly is easy, the identification precision of the loosening of the primary nut is high, and the response is sensitive.

Preferably, the method comprises the following steps: the trigger ring piece can be locked on the bolt through a phase limiting structure, the phase limiting structure comprises a set screw, a set screw hole and a kidney-shaped hole, the set screw hole penetrates through the trigger ring piece in the radial direction, the kidney-shaped hole penetrates through the device substrate in the radial direction, the head of the set screw is in sliding fit with the kidney-shaped hole, the set screw hole is located on the inner side of the kidney-shaped hole and is in threaded fit with the set screw, and when the set screw penetrates through the kidney-shaped hole and the set screw hole in sequence and is locked on the bolt, the relative position of the trigger ring piece and the bolt can be locked.

By adopting the structure, the trigger ring piece can be reliably locked through the fastening screw and the fastening screw hole, and the head of the fastening screw is in sliding fit with the kidney-shaped hole to avoid interference and clamping stagnation when the device substrate is loosened along with the primary nut; moreover, the requirement on the material of the trigger ring piece is very low, and the trigger ring piece can be driven by a little acting force of the bolt as long as the device substrate rotates towards the direction of screwing the bolt, so that the trigger ring piece can be made of hard plastics and other materials, the manufacturing cost is reduced, the screwing process of the nut loosening early warning piece arranged on the bolt and the original nut is very light and labor-saving, and the assembly difficulty is greatly reduced; meanwhile, after the device substrate is installed in place, the triggering ring piece is completely locked on the bolt through the phase limiting structure, and even if the primary nut only slightly loosens, the triggering ring piece cannot be driven by the substrate, so that the alarm device can be triggered in time, and the sensitivity is extremely high.

Preferably, the method comprises the following steps: and one end of the device base body, which is close to the native nut, is provided with a fastener for connecting the native nut.

By adopting the structure, the synchronous rotation of the device substrate and the native nut is ensured, so that the micro-rotation of the native nut is accurately identified.

The utility model provides an integral type intelligent nut, its main points lie in: the intelligent early warning device comprises a nut base body and the top cover type nut loosening intelligent early warning piece, wherein one end face of the nut base body is fixedly connected with the adjacent end face of the device base body.

By adopting the structure, the intelligent early warning device has the advantages of not only having all the advantages of the top cover type nut loosening intelligent early warning piece, but also being capable of directly realizing threaded connection with the bolt in a matching mode, canceling independent nuts, reducing the number of parts, reducing the installation difficulty and improving the installation efficiency.

Compared with the prior art, the utility model has the beneficial effects that:

by adopting the top cover type nut loosening intelligent early warning piece and the integrated intelligent nut in the technical scheme, the warning device is arranged at one end of the device base body by the top cover type nut loosening intelligent early warning piece, so that the processing difficulty and the assembly difficulty of parts of the warning device are greatly reduced, and the radial size of the high-sensitivity nut loosening early warning piece is reduced, so that the warning device can be installed in a narrower installation space, the applicability is improved, meanwhile, the sealing and waterproof design is facilitated to be simplified, the warning device can be better protected, and the service life is prolonged; integral type intelligence nut not only possesses top cap formula nut not hard up all advantages of intelligent early warning piece, can directly realize threaded connection with the bolt cooperation moreover, has cancelled solitary nut, has reduced the quantity of spare part, has reduced the installation degree of difficulty, has promoted the installation effectiveness.

Drawings

FIG. 1 is a cross-sectional view of a first embodiment of a top-hat nut loosening intelligent warning device in cooperation with a bolt and a native nut;

FIG. 2 is a schematic structural diagram of a first embodiment of an intelligent warning device for looseness of a top-cover nut;

FIG. 3 is a cross-sectional view of a second embodiment of the top-cover-type nut loosening intelligent early warning component in cooperation with a bolt and a primary nut;

fig. 4 is a schematic view of a matching relationship between a limiting bump and a rotation limiting groove of a second embodiment of the intelligent warning element for looseness of the top-cover nut under the condition of no looseness;

fig. 5 is a schematic view of a fitting relationship between a limiting projection and a rotation limiting groove of a second embodiment of the top-cap-type nut loosening intelligent early warning member under a loosening condition;

FIG. 6 is a schematic view showing a matching relationship between the ejector rod and the trigger ramp of the second embodiment of the intelligent warning device for loosening of the top-cover nut under the condition of no loosening;

FIG. 7 is a schematic view showing a matching relationship between the ejector rod and the trigger ramp of the second embodiment of the intelligent warning device for loosening of the top-cover nut under the loosening condition;

FIG. 8 is a schematic structural view of a first embodiment of the integrated intelligent nut;

FIG. 9 is a cross-sectional view of a third embodiment of the top-cover-type nut loosening intelligent early warning component in cooperation with a bolt and a native nut;

fig. 10 is a schematic view of a fitting relationship between a limiting projection and a rotation limiting groove of a third embodiment of the intelligent warning element for loosening of the top-cover nut under the condition of not loosening;

fig. 11 is a schematic view of a fitting relationship between a limiting projection and a rotation limiting groove of a third embodiment of the intelligent warning element for loosening of the top-cover nut under a loosening condition;

FIG. 12 is a schematic structural view of a second embodiment of the integrated intelligent nut;

fig. 13 is an external structural schematic diagram of a second embodiment of the top-cover nut loosening intelligent early warning device and a third embodiment of the top-cover nut loosening intelligent early warning device;

fig. 14 is an explosion diagram of a device substrate, a connecting piece and a fastening piece in a second embodiment of the top-cover nut loosening intelligent early warning piece and a third embodiment of the top-cover nut loosening intelligent early warning piece;

fig. 15 is a schematic view of a matching relationship between a device substrate and a fastening member when a second embodiment of the top-cover nut loosening intelligent warning device or a third embodiment of the top-cover nut loosening intelligent warning device is connected with a primary nut;

fig. 16 is a schematic diagram of a matching relationship between a device substrate and a fastening member when the second embodiment of the top-cover nut loosening intelligent warning device or the third embodiment of the top-cover nut loosening intelligent warning device is not connected with a primary nut.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

First embodiment of the top cover type nut loosening intelligent early warning piece:

as shown in fig. 1 and 2, the intelligent warning device for loosening of the top-cover nut mainly comprises a device base body 1, a warning device 6 and a triggering structure arranged in the device base body 1. The device base body 1 is of a hexagonal prism structure, rotation is facilitated through a wrench, and operation is simplified. An internal thread mounting hole 11 in threaded fit with the bolt 5 is formed in one end face of the device base body 1, and the internal thread mounting hole 11 is of a blind hole structure.

The end face of one end of the device base body 1, far away from the internal thread mounting hole 11, is covered with a top cover 19, the top cover 19 and the device base body 1 surround to form a mounting cavity 18, and the alarm device 6 is mounted in the mounting cavity 18. Specifically, the alarm device 6 comprises an alarm circuit board 61, and a battery 62 and a push switch 63 both arranged on the alarm circuit board 61, wherein an alarm module is integrated on the alarm circuit board 61, the battery 62 is used for supplying power to the alarm circuit board 61, and the push switch 63 protrudes out of one side of the alarm circuit board 61 close to the device base body 1 and is used for starting the alarm module.

Set up alarm device 6 in the installation cavity 18 of device base member 1 one end, not only greatly reduced the processing degree of difficulty and the assembly degree of difficulty of alarm device spare part, reduced the not hard up radial dimension of early warning piece of high sensitivity nut moreover to can install in more constrictive installation space, improve the suitability, still be favorable to simplifying sealed waterproof design simultaneously, can protect alarm device 6 better, promote life.

At least one push switch 63 is provided, in this embodiment, the push switches 63 are preferably multiple, and the push switches 63 are uniformly distributed on the alarm circuit board 61 along the circumferential direction. Therefore, the triggering structure comprises ejector rod slide ways 17 which are respectively in one-to-one correspondence with the push switches 63, each ejector rod slide way 17 is parallel to the axial direction of the internal thread mounting hole 11 and penetrates through the end surfaces of the two ends of the device base body 1, each push switch 63 is respectively positioned at one end of the corresponding ejector rod slide way 17, ejector rods 3 which can slide along the ejector rod slide ways are respectively arranged in the ejector rod slide ways 17, one ends, close to the corresponding push switches 63, of the ejector rods 3 are elastically supported on the elastic sealing gaskets 4, and one ends, far away from the corresponding push switches 63, of the corresponding ejector rods 3 are driven by the elastic sealing gaskets 4 to protrude out of the corresponding end surfaces of the device base body 1, so that the ejector rods 3 are supported on the adjacent end surfaces of the native nuts 9. Elastic sealing pad 4 both is used for sealed installation cavity 18, is used for driving ejector pin 3 again and keeps away from push switch 63, and simultaneously, ejector pin 3 can overcome elastic sealing pad 4's resistance under native nut 9's effect, presses push switch 63, and ejector pin 3 is close to the one end of elastic sealing pad 4 promptly, can drive elastic sealing pad 4 and warp to press push switch 63.

Therefore, when the primary nut 9 becomes loose, the primary nut 9 rotates while approaching the device base 1, so that one or more push rods 3 can be pressed to press the push switch 63 through the corresponding elastic sealing gasket 4, and the alarm module is activated, that is: any push switch 63 is pressed and the alarm module is activated.

Further, the ring piece center hole 21 is preferably an internal thread hole in threaded fit with the bolt 5, and can be better matched with the bolt 5, so that clamping stagnation is reduced, and the integral installation of the top cover type nut loosening early warning piece is easier.

Referring to fig. 14-16, a fastener 8 capable of moving axially is disposed at one end of the device substrate 1 close to the primary nut 9, the fastener 8 has a fastener central through hole 81 coaxial with the internal thread mounting hole 11, a gap is left between the fastener central through hole 81 and the bolt 5, a hexagonal recessed groove 82 adapted to the primary nut 9 is formed in an end surface of the fastener 8 far from the device substrate 1, one end of the fastener 8 close to the device substrate 1 has fastener one-way teeth 83 surrounding the fastener central through hole 81, and one end of the device substrate 1 close to the fastener 8 has substrate one-way teeth 14 adapted to the fastener one-way teeth 83.

Since the fastener 8 can freely move in the axial direction of the device base body 1 when no external force is applied. Therefore, when the high-precision nut loosening warning element does not lock the primary nut 9, the one-way helical teeth 14 of the base body are separated from the one-way helical teeth 83 of the fastener, and at this time, the device base body 1 can freely rotate in two directions relative to the fastener 8.

When the fastener 8 is about to lock the primary nut 9, the end face of one end of the primary nut 9 is embedded into the hexagonal sunk groove 82, the fastener 8 is connected with the primary nut 9, so that the two rotate synchronously, at the moment, the primary nut 9 can drive the one-way helical teeth 14 of the base body of the fastener 8 to be meshed with the one-way helical teeth 83 of the fastener, so that the device base body 1 can only rotate in one direction relative to the direction of the fastener 8 close to the primary nut 9, and the device base body 1 can only lock the primary nut 9 more and more through the fastener 8, and cannot rotate reversely.

Furthermore, the end of the device base body 1, which is far away from the alarm device 6, is provided with a connecting piece 15, and the fastening piece 8 is axially movably mounted on the device base body 1 through the connecting piece 15, so that the device base body is simple and reliable.

The second embodiment of the intelligent early warning part for looseness of the top cover type nut:

referring to fig. 3 to 7, the main structure of the present embodiment is the same as that of the first embodiment of the top-cover nut loosening intelligent warning device, and the difference is the triggering structure: the trigger structure comprises a trigger ring piece 2 which is rotatably arranged on the wall of the internal thread mounting hole 11, the trigger ring piece 2 is sleeved on the bolt 5, and the friction force between the trigger ring piece 2 and the bolt 5 is greater than the friction force between the device substrate 1 and the bolt 5. In this embodiment, the ring center hole 21 of the trigger ring 2 is in threaded or friction fit with the bolt 5.

Be provided with in the device base member 1 with the parallel ejector pin slide 17 of the 2 axis of rotation of trigger ring spare, the ejector pin slide 17 is close to the one end of the push switch 63 of alarm device 6 and is provided with elastic sealing pad 4, promptly: the end of the ram slide 17 provided with the elastic packing 4 faces the push switch 63. The push rod slide way 17 is provided with a push rod 3 which can slide along the push rod slide way, and one end of the push rod 3 is elastically supported on the elastic sealing gasket 4. The elastic sealing gasket 4 is used for sealing the installation cavity 18 and driving the ejector rod 3 to be far away from the press switch 63, meanwhile, the ejector rod 3 can overcome the resistance of the elastic sealing gasket 4 under the action of other external forces, the press switch 63 is pressed, namely, one end of the ejector rod 3, which is close to the elastic sealing gasket 4, can drive the elastic sealing gasket 4 to deform, and the press switch 63 is pressed.

The outer peripheral surface of the trigger ring member 2 is provided with a limiting bump 22, and the device substrate 1 is provided with a section of rotation limiting groove 12 in sliding fit with the limiting bump 22, so that the rotation angle of the device substrate 1 relative to the trigger ring member 2 can be limited through the sliding fit of the limiting bump 22 and the rotation limiting groove 12. Meanwhile, a trigger ramp 221 is arranged on one side, close to the ejector rod 3, of the limiting bump 22, the trigger ramp 221 is provided with a trigger high position and a non-trigger low position, the height of the trigger high position protruding out of the trigger ring piece 2 is higher than the height of the non-trigger low position protruding out of the trigger ring piece 2, and one end portion, far away from the elastic sealing gasket 4, of the ejector rod 3 is supported on the trigger ramp 221, so that relative rotation of the device base body 1 and the trigger ring piece 2 can be converted into linear motion.

Therefore, when the device substrate 1 rotates towards the direction of screwing the bolt 5, because the ring central hole 21 of the trigger ring 2 is in threaded fit or friction fit with the bolt 5, at the beginning, the device substrate 1 rotates relative to the trigger ring 2, then the limit bump 22 is abutted against the rear end groove wall of the rotation limit groove 12 in the current rotation direction, the device substrate 1 drives the trigger ring 2 to rotate synchronously, at the moment, one end part of the ejector rod 3 far away from the elastic sealing gasket 4 is supported on a non-trigger low position, the elastic sealing gasket 4 releases the press switch 63, namely the press switch 63 is not stressed, and the alarm module stops.

When the device base member 1 is driven by the native nut 9 to rotate reversely, the native nut 9 can drive the device base member 1 to rotate relative to the bolt 5 synchronously, namely, the device base member 1 rotates reversely, at the moment, the limiting lug 22 is abutted against the other end groove wall of the rotating limiting groove 12, the end part of the ejector rod 3 far away from the elastic sealing gasket 4 is supported on the trigger high position, the elastic sealing gasket 4 presses the press switch 63 under the driving of the ejector rod 3, and the alarm module is started.

Referring to fig. 4-7, the trigger ramp 221 at least includes a matching inclined section 221a disposed obliquely, the trigger high position is located at or near one end of the matching inclined section 221a, the non-trigger low position is located at or near the other end of the matching inclined section 221a, the height of the matching inclined section 221a protruding from the trigger ring 2 gradually decreases from the end near the trigger high position to the end near the non-trigger low position, and the matching inclined section 221a has a smooth structure, so that the ejector rod 3 can be stably and reliably driven, the jamming problem is avoided, and the matching inclined section 221a is linearly gradually changed, so that the response accuracy can be adaptively adjusted in the later period according to the situation.

Furthermore, a standby straight section 221b and an alarm straight section 221c are respectively arranged at two ends of the matching inclined section 221a, the positions of the standby straight section 221b protruding out of the trigger ring member 2 are the same in height, the non-trigger low position is arranged on the standby straight section 221b, the positions of the alarm straight section 221c protruding out of the trigger ring member 2 are the same in height, and the trigger high position is arranged on the alarm straight section 221 c. By designing the standby straight section 221b, when the primary nut 9 is not loosened, the ejector rod 3 can be supported more reliably, and the possibility of false alarm is reduced; through designing the straight section 221c of reporting to the police, when reporting to the police, can carry out more reliable support to ejector pin 3, reduce the possibility that takes place the unexpected relief of warning.

Referring to fig. 3, the push rod slideway 17 includes a slideway main section 171, one end of the slideway main section 171 close to the push switch 63 is expanded to form a switch accommodating section 172 adapted to the push switch 63, the push switch 63 protrudes into the switch accommodating section 172, and the elastic sealing gasket 4 is installed at a step of a boundary between the slideway main section 171 and the switch accommodating section 172. Both guaranteed the position of push switch 63, guaranteed the reliable cooperation of push switch 63, elastic sealing pad 4 and ejector pin 3, can install elastic sealing pad 4 more reliably again, further promote sealed reliability.

Further, the one end export that slide main part 171 is close to trigger ring spare 2 is the cambered surface structure that the radius reduces gradually, through such design, can carry on spacingly to ejector pin 3, avoids 2 too big application of force to trigger ring spare, makes trigger ring spare 2 take place the jamming scheduling problem, ensures the stability of whole operation.

Referring to fig. 3 and 13, the trigger ring 2 can be locked on the bolt 5 through a phase-defining structure, the phase-defining structure includes a set screw 7, a set screw hole 23 penetrating the trigger ring 2 in the radial direction, and a kidney-shaped hole 13 penetrating the device substrate 1 in the radial direction, the kidney-shaped hole 13 extends in the circumferential direction of the device substrate 1, and the length of the kidney-shaped hole 13 in the circumferential direction of the device substrate 1 is longer than that of the set screw hole 23. The head of the set screw 7 is in sliding fit with the kidney-shaped hole 13, and the set screw hole 23 is positioned on the inner side of the kidney-shaped hole 13 and is in threaded fit with the set screw 7. When the set screw 7 passes through the kidney-shaped hole 13 and the set screw hole 23 in sequence and is locked on the bolt 5, the relative positions of the trigger ring 2 and the bolt 5 can be locked. Therefore, when the primary nut 9 is loosened, the device substrate 1 rotates a certain angle relative to the trigger ring 2, and through the design of the kidney-shaped hole 13, the head of the set screw 7 is displaced in the kidney-shaped hole 13, so that interference and clamping stagnation can be avoided.

Due to the fact that the set screw 7 is arranged, the requirement on the material of the trigger ring piece 2 is very low, and the trigger ring piece 2 can be driven by a little acting force of the bolt 5 as long as the device base body 1 rotates towards the direction of screwing the bolt 5 is ensured, so that the trigger ring piece 2 can be made of hard plastics and other materials, the manufacturing cost is reduced, the screwing-in process of the top cover type nut looseness early warning piece arranged on the bolt 5 and the primary nut 9 is light and labor-saving, and the assembling difficulty is greatly reduced.

Embodiment three of the top cover type nut loosening early warning part:

referring to fig. 9 to 11, the main structure of the present embodiment is the same as that of the first embodiment of the top-cover nut loosening intelligent warning device, and the difference is the triggering structure:

the trigger structure comprises a trigger ring piece 2 which is rotatably arranged on the wall of the internal thread mounting hole 11, the trigger ring piece 2 is sleeved on the bolt 5, and the friction force between the trigger ring piece 2 and the bolt 5 is greater than the friction force between the device substrate 1 and the bolt 5. In this embodiment, the ring center hole 21 of the trigger ring 2 is in threaded fit or friction fit with the bolt 5, and the trigger ring 2 can be locked on the bolt 5 by the phase-defining structure. The outer peripheral surface of the trigger ring member 2 is provided with a limiting bump 22, and the device substrate 1 is provided with a section of rotation limiting groove 12 in sliding fit with the limiting bump 22, so that the rotation angle of the device substrate 1 relative to the trigger ring member 2 can be limited through the sliding fit of the limiting bump 22 and the rotation limiting groove 12. Meanwhile, a fixed contact is arranged on the end face of one end of the limiting lug 22, and a movable contact matched with the fixed contact is arranged on the groove wall of one end of the rotation limiting groove 12 adjacent to the fixed contact.

Therefore, when the device base body 1 rotates towards the direction of screwing the bolt 5, the phase limiting structure unlocks the trigger ring member 2, because the ring member center hole 21 of the trigger ring member 2 is in threaded fit or friction fit with the bolt 5, at the beginning, the device base body 1 rotates relative to the trigger ring member 2, then the limiting lug 22 is abutted against the groove wall at one end of the rotation limiting groove 12 far away from the movable contact, the device base body 1 drives the trigger ring member 2 to rotate synchronously, at the moment, the fixed contact and the movable contact are kept separated, and the alarm device 6 stops.

Correspondingly, when the device base body 1 is driven by the primary nut 9 to rotate reversely, the phase limiting structure locks the trigger ring 2, the primary nut 9 can drive the device base body 1 to rotate relative to the bolt 5 synchronously, namely, the device base body 1 rotates reversely, at the moment, the device base body 1 drives the movable contact to move to be abutted against the fixed contact, and the alarm device 6 is started.

The alarm device 6 comprises an alarm circuit board 61 and a battery 62 for supplying power to the alarm circuit board 61, an alarm module is integrated on the alarm circuit board 61, and the alarm module and the battery 62 are connected in series between the movable contact and the fixed contact. When the movable contact contacts with the fixed contact, the alarm module is started; when the movable contact is separated from the fixed contact, the alarm module is stopped. Therefore, when the movable contact and the fixed contact are separated, the whole alarm device is in a power-off state, the electric power of the battery 62 cannot be lost, the electric power of the battery 62 is only naturally attenuated, and the service life of the alarm ring piece triggered by loosening of the nut is prolonged.

In the embodiment, the fixed contact and the movable contact are both copper sheets, so that the corrosion resistance is good, and the device is stable and reliable. And the copper sheets are anchored on the side parts of the limiting lug 22 or the rotary limiting groove 12 through rivets and then bent and attached to the corresponding ends.

Furthermore, in the embodiment, the fixed contact and the movable contact are both copper sheets, so that the corrosion resistance is good, and the stability and reliability are high. And the copper sheets are anchored on the side parts of the limiting lug 22 or the rotary limiting groove 12 through rivets and then bent and attached to the corresponding ends.

Integral type intelligent nut embodiment one:

referring to fig. 8, an integrated intelligent nut includes a nut base 10 and the second embodiment of the top-cover nut loosening warning device, where an end face of one end of the nut base 10 is fixedly connected to an adjacent end face of the device base 1. Integral type intelligence nut not only possesses all advantages of the not hard up early warning piece of high accuracy nut, can directly realize threaded connection with 5 cooperations of bolt moreover, has cancelled solitary nut, has reduced the quantity of spare part, has reduced the installation degree of difficulty, has promoted the installation effectiveness.

Further, the device base body 1 is of a cylindrical structure, the nut base body 10 is of a hexagonal prism structure, and the nut base body 10 is assembled and disassembled, so that damage caused by acting force applied to the device base body 1 during disassembly is avoided.

In addition, the nut base body 10 is provided with a central threaded hole 101, the aperture of the central threaded hole 101 is equal to the apertures of the internal thread mounting hole 11 and the ring piece central hole 21, and the connection reliability of the integrated intelligent nut and the bolt can be effectively improved.

Embodiment two of integrated intelligent nut:

referring to fig. 12, the main structure of the first embodiment of the integrated intelligent nut is the same as that of the first embodiment of the integrated intelligent nut, and the difference is that: the first embodiment of the integrated intelligent nut comprises a nut base body 10 and the third embodiment of the top cover type nut looseness early warning component.

And a waterproof gasket 16 is arranged between the trigger ring 2 and the nut base body 10, the waterproof gasket 16 plays a sealing role on the device base body 1, water and impurities are prevented from entering the device base body 1, and the running reliability of the integrated intelligent nut is guaranteed.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and that those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a top cap formula nut is not hard up intelligent early warning piece, includes device base member (1), alarm device (6) and sets up the trigger structure in device base member (1), its characterized in that: an internal thread mounting hole (11) in threaded fit with the bolt (5) is formed in the end face of one end of the device base body (1), and the internal thread mounting hole (11) is of a blind hole structure;

a top cover (19) covers the end face of one end, far away from the internal thread mounting hole (11), of the device base body (1), the top cover (19) and the device base body (1) surround to form a mounting cavity (18), and the alarm device (6) is mounted in the mounting cavity (18);

when the device base body (1) is driven by the primary nut (9) to rotate towards the direction of unscrewing the bolt (5), the triggering structure starts the alarm device (6).

2. The intelligent early warning piece for loosening of the top cover type nut as claimed in claim 1, wherein: alarm device (6) are including warning circuit board (61) and all set up battery (62) and press the switch (63) on warning circuit board (61), the integration has alarm module on warning circuit board (61), battery (62) are used for supplying power to warning circuit board (61), press the switch (63) protrusion in warning circuit board (61) be close to the one side of device base member (1) for start alarm module.

3. The intelligent early warning piece for loosening of the top cover type nut as claimed in claim 2, wherein: at least one push switch (63) is arranged, the trigger structure comprises ejector rod slide ways (17) which are respectively in one-to-one correspondence with the push switches (63), each ejector rod slide way (17) is parallel to the axial direction of the internal thread mounting hole (11), and penetrates through the end faces of the two ends of the device base body (1), each press switch (63) is respectively positioned at one end of the corresponding ejector rod slide way (17), the push rod slideways (17) are all provided with push rods (3) which can slide along the push rod slideways, one end of the ejector rod (3) close to the corresponding push switch (63) is elastically supported on an elastic sealing gasket (4), the elastic sealing gasket (4) is used for sealing the installation cavity (18), and can drive one end of the corresponding ejector rod (3) far away from the corresponding press switch (63) to protrude out of the corresponding end surface of the device base body (1), so that each ejector rod (3) is supported on the adjacent end surface of the original nut (9);

when the primary nut (9) is loosened, the primary nut (9) rotates and simultaneously approaches the device base body (1), so that one or more ejector rods (3) can be pressed, the pressing switch (63) is pressed through the corresponding elastic sealing gasket (4), and the alarm module is started.

4. The intelligent warning piece for looseness of a top-cover nut according to claim 2, wherein: the trigger structure comprises a trigger ring piece (2) rotatably mounted on the wall of the internal thread mounting hole (11), the trigger ring piece (2) is sleeved on the bolt (5), and the friction force between the trigger ring piece (2) and the bolt (5) is greater than the friction force between the device substrate (1) and the bolt (5);

an ejector rod slide way (17) parallel to the rotation axis of the trigger ring piece (2) is arranged in the device substrate (1), an elastic sealing gasket (4) used for sealing the installation cavity (18) is arranged at one end, facing the push switch (63), of the ejector rod slide way (17), an ejector rod (3) capable of sliding along the ejector rod slide way is arranged in the ejector rod slide way (17), and one end of the ejector rod (3) is elastically supported on the elastic sealing gasket (4);

the outer peripheral surface of the trigger ring piece (2) is provided with a limit bump (22), the device base body (1) is provided with a section of rotary limit groove (12) in sliding fit with the limit bump (22), one side, close to the ejector rod (3), of the limit bump (22) is provided with a trigger ramp (221), the trigger ramp (221) is provided with a trigger high position and a non-trigger low position, the height of the trigger high position protruding out of the trigger ring piece (2) is higher than the height of the non-trigger low position protruding out of the trigger ring piece (2), and one end part, far away from the elastic sealing gasket (4), of the ejector rod (3) is supported on the trigger ramp (221);

when the device base body (1) rotates towards the direction of screwing the bolt (5), the limiting bump (22) is abutted against the rear end groove wall of the rotating limiting groove (12) in the current rotating direction, at the moment, the end part of the ejector rod (3) far away from one end of the elastic sealing gasket (4) is supported on a non-trigger low position, the elastic sealing gasket (4) releases the press switch (63), and the alarm module stops; when the device base body (1) is driven by the primary nut (9) to rotate reversely, the limiting convex block (22) is abutted to the wall of the other end of the rotating limiting groove (12), the end part of one end, far away from the elastic sealing gasket (4), of the ejector rod (3) is supported on the trigger high position, the elastic sealing gasket (4) presses the press switch (63) under the driving of the ejector rod (3), and the alarm module is started.

5. The intelligent warning piece for looseness of a top-cover nut according to claim 4, wherein: the trigger ramp (221) at least comprises a matched inclined surface section (221a) which is obliquely arranged, the trigger high position is located at or close to one end of the matched inclined surface section (221a), the non-trigger low position is located at or close to the other end of the matched inclined surface section (221a), and the height of the matched inclined surface section (221a) protruding out of the trigger ring piece (2) is gradually reduced from one end close to the trigger high position to one end close to the non-trigger low position.

6. The intelligent warning piece for looseness of a top-cover nut of claim 5, wherein: the two ends of the matched inclined plane section (221a) are respectively provided with a standby straight section (221b) and an alarm straight section (221c), the heights of all positions of the standby straight section (221b) protruding out of the trigger ring piece (2) are the same, the non-trigger low position is arranged on the standby straight section (221b), all positions of the alarm straight section (221c) protruding out of the trigger ring piece (2) are the same, and the trigger high position is arranged on the alarm straight section (221 c).

7. The intelligent warning piece for looseness of a top-cover nut according to claim 1, wherein: the trigger structure comprises a trigger ring piece (2) rotatably mounted on the wall of the internal thread mounting hole (11), the trigger ring piece (2) is sleeved on the bolt (5), and the friction force between the trigger ring piece (2) and the bolt (5) is greater than the friction force between the device substrate (1) and the bolt (5);

the outer peripheral surface of the trigger ring piece (2) is provided with a limiting lug (22), the device base body (1) is provided with a section of rotary limiting groove (12) in sliding fit with the limiting lug (22), one end face of the limiting lug (22) is provided with a fixed contact, and the groove wall of one end, adjacent to the fixed contact, of the rotary limiting groove (12) is provided with a movable contact matched with the fixed contact;

when the device base body (1) rotates towards the direction of screwing the bolt (5), the limiting lug (22) is abutted against the groove wall of one end of the rotating limiting groove (12) far away from the movable contact to drive the fixed contact and the movable contact to keep separated, and the alarm device (6) is stopped; when the device base body (1) is driven by the primary nut (9) to rotate reversely, the device base body (1) drives the movable contact to move to be abutted against the fixed contact, and the alarm device (6) is started.

8. The intelligent warning piece for looseness of the top-cover nut according to claim 4 or 7, wherein: the trigger ring piece (2) can be locked on the bolt (5) through a phase limiting structure, the phase limiting structure comprises a set screw (7), a set screw hole (23) penetrating through the trigger ring piece (2) in the radial direction and a kidney-shaped hole (13) penetrating through the device base body (1) in the radial direction, the kidney-shaped hole (13) extends along the circumferential direction of the device base body (1), the head of the set screw (7) is in sliding fit with the kidney-shaped hole (13), the set screw hole (23) is located on the inner side of the kidney-shaped hole (13) and in threaded fit with the set screw (7), and when the set screw (7) penetrates through the kidney-shaped hole (13) and the set screw hole (23) in sequence and is locked on the bolt (5), the relative position of the trigger ring piece (2) and the bolt (5) can be locked.

9. The intelligent warning piece for looseness of the top-cover nut according to claim 4 or 7, wherein: one end of the device base body (1) close to the native nut (9) is provided with a fastener (8) used for connecting the native nut (9).

10. The utility model provides an integral type intelligence nut which characterized in that: the intelligent early warning device for the looseness of the top-cover nut comprises a nut base body (10) and the intelligent early warning device for looseness of the top-cover nut in any one of claims 1, 2, 4, 5, 6, 7 and 8, wherein one end face of the nut base body (10) is fixedly connected with the adjacent end face of the device base body (1).

Images