CN209979218U - Bolt failure detection device - Google Patents
Bolt failure detection device Download PDFInfo
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- CN209979218U CN209979218U CN201920982519.2U CN201920982519U CN209979218U CN 209979218 U CN209979218 U CN 209979218U CN 201920982519 U CN201920982519 U CN 201920982519U CN 209979218 U CN209979218 U CN 209979218U
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Abstract
The utility model discloses a bolt failure detection device, include: the bolt is fixed on the connecting structure, an attraction part which is matched with the bolt for attraction is arranged outside the bolt, and the bolt falls along an attraction path under the action of attraction force of the attraction part when being separated from the connecting structure; a collision line in a tight state is arranged between the bolt and the adsorption part, and the collision line is intersected with the adsorption path; at least one of the two end parts of the wire collision is in triggering connection with the sensing unit; the sensing unit is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism. Through such design, when the bolt fatigue failure, drop from connection structure, alright drop to the adsorption element surface and adsorbed fixedly along the adsorption path under adsorption element's the adsorption affinity, hit the line of colliding simultaneously at the in-process that drops, hit the line and trigger the sensing unit, realize reporting to the police, realize the safety inspection and the recovery of bolt, simple structure, it is stable, effective.
Description
Technical Field
The utility model relates to a monitoring facilities technical field especially relates to bolt failure detection device.
Background
The bolt connection is widely used in the fields of buildings, bridges, mechanical equipment, steel structures, wind power generation assemblies and the like, the reliability of the bolt connection is critical to the continuous safe operation and the operation safety of the equipment, and the equipment damage or even the life safety is possibly threatened due to the failure of the key high-strength bolt connection. Particularly, high-strength bolts which are used in a complicated and severe environment need to bear dynamic load impact and environmental corrosion, the fatigue failure of the used connecting bolts is up to 85%, and the main failure mode of the bolts is fatigue.
However, in the prior art, the main measures taken for monitoring the bolt are manual inspection, periodic maintenance, and installation of a bolt monitoring system, for example, a fiber grating intelligent bolt monitoring system is adopted, the bolt tension change is sensed in real time by using a fiber strain monitoring technology, and a strain gauge technology, an ultrasonic technology and the like are also adopted in similar schemes. The above-mentioned techniques, during their use, present at least the technical problems identified by the skilled man:
1) through manual inspection, a worker needs to carefully inspect each bolt, a large amount of time is usually needed, and meanwhile, the labor cost is increased;
2) monitoring system through prior art monitors, and the most bolts that need change a large amount of installation sensors, and the installation is more complicated with the maintenance, and is with high costs, can not monitor comprehensively moreover.
Therefore, it is necessary to provide a bolt failure detection device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a bolt failure detection device, its installation is simple, and simple structure can be accurate detect the warning to the bolt failure to can collect the bolt that becomes invalid, prevent that it from falling into other key subassembly.
The utility model provides a bolt failure detection device, include:
a bolt failure detection apparatus comprising: a bolt 102 fixed on the connecting structure, wherein the outside of the bolt 102 is provided with a suction part 100 which is matched with the bolt 102 for suction, and when the bolt 102 is separated from the connecting structure, the bolt falls along a suction path 101 under the suction force of the suction part 100;
a collision line 301 in a tight state is arranged between the bolt 102 and the suction part 100, and the collision line 301 is intersected with the suction path 101;
at least one of the two end parts of the wire-striking 301 is in triggering connection with a sensing unit; the sensing unit is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism.
Through the design, when the bolt 102 is in fatigue failure, the bolt falls off from the connecting structure, can fall to the surface of the suction part 100 along the suction path 101 under the action of the suction force of the suction part 100 and is sucked and fixed, and simultaneously impacts the wire impact 301 in the falling process, and the wire impact 301 triggers the sensing unit to realize alarming and realize the safety detection and recovery of the bolt 102, so that the structure is simple, stable and effective.
Preferably, the attraction member 100 is a magnet, such as an electromagnet or a permanent magnet. Preferred permanent magnet, adsorption affinity is stable, receives outside electric power system to influence for a short time, and is fixed simple, can direct absorption on connection structure, current connection structure, for example the flange is mostly iron.
Preferably, a bolt housing case 200 is further provided outside the bolt 102, an opening into which the engagement bolt 102 is dropped is opened at an end portion of the bolt housing case 200 close to the bolt 102, and the suction member 100 is provided inside the bolt housing case 200. Such a design may allow bolt 102 to fall into bolt receiver 200 after it has been stripped, preventing bolt 102 from entering other components, which could have more serious consequences.
Preferably, one end of the wire-striking 301 is fixed, and the other end of the wire-striking 301 is connected with the sensing unit in a triggering manner; the area of the collision line 301 colliding with the bolt 102 is a collision section 3012, and two ends of the collision section 3012 are respectively guided and transited by a guide piece 302; the impact section 3012 is disposed within bolt housing box 200. With such a design, the impact section 3012 can be adjusted to an optimal position by the guide 302, so as to avoid the change of the position of the wire impact, which makes the impact impossible.
Preferably, the guide member 302 is a guide ring or a fixed pulley. Such a design is a further optimization of the solution.
Preferably, the guide 302 is a fixed pulley, and the suction path 101 is disposed perpendicular to a fixed pulley shaft. Due to the design, when the bolt 102 collides with the wire-striking 301, the wire-striking 301 can move under the guidance of the fixed pulley, the wire-striking drives the fixed pulley to rotate, the dynamic friction is converted into the static friction, the damage to the wire-striking is reduced, and the stability and the service life of the equipment are improved.
Preferably, one or two or more impact sections 3012 are arranged on a single impact wire 301, guide sections 3011 are arranged between adjacent impact sections 3012, and both ends of each guide section 3011 are transitionally guided with the impact sections 3012 through fixed pulleys; each impact segment 3012 mates with a bolt housing box 200 and suction member, each bolt housing box 200 corresponding in position to a bolt 102. Due to the design, a plurality of impact sections 3012 are connected in series on a single impact wire 301, so that a plurality of bolts 102 can be detected at the same time, the number of sensing units can be reduced, and the stability of the whole system is improved.
Preferably, the single collision line, the bolt storage box 200 matched with the single collision line, the suction part 100, the fixed pulley and the sensing unit form a sensing unit group; the detection device comprises one, two or more sensing unit groups, and each sensing unit group is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism. The design is suitable for detecting the bolts 102 in different areas under the condition that the number of the bolts 102 is large, and the application range of the detection system is widened.
Preferably, the sensing unit is a rope displacement sensor. Such design can realize the connection of wire collision trigger end portion through stay wire structure of stay cord displacement sensor, because stay cord displacement sensor is inside to be provided with the resilience structure, when wire collision 301 collides with bolt 102, stay cord displacement sensor can trigger, and stay cord displacement sensor transmits detected signal to alarm mechanism simultaneously, and the stay cord displacement sensor can rely on the resilience structure to recover the original state after the striking is accomplished.
Preferably, the sensing unit is a displacement sensor 340, the end of the wire-striking 301, which is engaged with the sensing unit, is a trigger end, the trigger end is connected to the outside through a spring 320, the wire-striking 301 is further fixed with a component 330 to be detected, and the component 330 to be detected is engaged with the displacement sensor 340 for detection. When the wire collision 301 collides with the bolt 102, the component 330 to be detected displaces along with the wire collision 301, meanwhile, the displacement sensor 340 detects a displacement signal and transmits the detection signal to the alarm mechanism, and after the collision is finished, the component 330 to be detected can be restored to the original position by the spring 320.
Preferably, the alarm mechanism comprises:
an alarm unit 401; and
the intermediate relay 402 is in communication connection with each sensing unit;
the alarm unit 401 is electrically connected to an intermediate relay 402.
With this configuration, a plurality of sensor units (sensor unit groups) can be connected to form one system. An intermediate relay 402 of the alarm mechanism receives the monitoring signal and closes an electric circuit of the alarm unit 401 under the driving of the monitoring signal;
the alarm unit 401 issues an alarm.
Compared with the prior art, the utility model discloses following beneficial effect has:
through the design, when the bolt 102 is in fatigue failure, the bolt falls off from the connecting structure, can fall to the surface of the suction part 100 along the suction path 101 under the action of the suction force of the suction part 100 and is sucked and fixed, and simultaneously impacts the wire impact 301 in the falling process, and the wire impact 301 triggers the sensing unit to realize alarming and realize the safety detection and recovery of the bolt 102, so that the structure is simple, stable and effective.
Drawings
Fig. 1 is a schematic view of a connection structure according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a connection structure according to embodiment 2 of the present invention;
fig. 3 is a schematic diagram of the detection distribution of a plurality of sensing unit groups in a single flange according to the present invention;
FIG. 4 is a system block diagram of a bolt failure detection arrangement;
fig. 5 is the logic diagram of the detection system and the whole wind power control of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Meanwhile, in the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be configured and operated in a specific orientation, and thus, are not to be construed as limiting the present application.
In addition, in the present application, "set up", "locate" and "be provided" may be provided as a fixed connection, may also be provided as an integral body, may also be provided as a detachable fixed connection, and those skilled in the art may select a suitable setting mode according to different situations.
The present invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 1, a bolt failure detection apparatus includes: a bolt 102 fixed on the connecting structure, wherein the outside of the bolt 102 is provided with a suction part 100 which is matched with the bolt 102 for suction, and when the bolt 102 is separated from the connecting structure, the bolt falls along a suction path 101 under the suction force of the suction part 100;
a collision line 301 in a tight state is arranged between the bolt 102 and the suction part 100, and the collision line 301 is intersected with the suction path 101;
at least one of the two end parts of the wire-striking 301 is in triggering connection with a sensing unit; the sensing unit is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism.
The attraction member 100 is a magnet.
One end of the wire collision 301 is fixed, and the other end of the wire collision 301 is in triggering connection with the sensing unit; the area of the collision line 301 colliding with the bolt 102 is a collision section 3012, and two ends of the collision section 3012 are respectively guided and transited by a guide piece 302; the impact section 3012 is disposed within bolt housing box 200.
The guide 302 is a guide ring or a fixed pulley. Bolt receiver 200 crosses magnet and tower section of thick bamboo or wall fastening, or fixed with glue, magnetic force size and glue are according to particular case lectotype. The stay wire in the protective box is supported as a fixed pulley, the size of the pulley is determined according to the size of the bolt 102 and the stay wire, for example, 4.2mm direct stay wire is adopted, 200kg of pulley is selected, the groove depth is 8mm, the narrowest part is 3mm, and a bearing 607 is adopted, and the specification can bear the bolt with the nut of 30mm-68mm and covers the main bolt used by wind power.
The guide member 302 is a fixed pulley, and the suction path 101 is disposed perpendicular to a fixed pulley shaft.
One or two or more impact sections 3012 are arranged on a single impact line 301, guide sections 3011 are arranged between adjacent impact sections 3012, and the end of each guide section 3011 is in transition guide with the impact section 3012 through a fixed pulley; each impact segment 3012 mates with a bolt housing box 200 and suction member, each bolt housing box 200 corresponding in position to a bolt 102.
The single collision line 301, the bolt storage box 200 matched with the single collision line, the attraction part 100, the fixed pulley and the sensing unit form a sensing unit group; the detection device comprises one, two or more sensing unit groups, and each sensing unit group is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism.
The sensor is characterized in that the sensing unit is a pull rope displacement sensor.
The device is characterized in that the sensing unit is a displacement sensor 340, the end part of the collision line 301 matched with the sensing unit is a trigger end part, the trigger end part is connected with the outside through a spring 320, a component 330 to be detected is further fixed on the collision line, and the component 330 to be detected is matched with the displacement sensor 340 for detection.
The alarm mechanism includes:
an alarm unit 401; and
the intermediate relay 402 is in communication connection with each sensing unit;
the alarm unit 401 is electrically connected to an intermediate relay 402.
Example 1
Referring to fig. 1 and 3, a bolt failure detection device includes: a bolt 102 fixed on the connecting structure, wherein the outside of the bolt 102 is provided with a suction part 100 which is matched with the bolt 102 for suction, and when the bolt 102 is separated from the connecting structure, the bolt falls along a suction path 101 under the suction force of the suction part 100;
a collision line 301 in a tight state is arranged between the bolt 102 and the suction part 100, and the collision line 301 is intersected with the suction path 101;
at least one of the two end parts of the wire-striking 301 is in triggering connection with a sensing unit; the sensing unit is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism.
The attraction member 100 is a magnet.
One end of the wire collision 301 is fixed, and the other end of the wire collision 301 is in triggering connection with the sensing unit; the area of the collision line 301 colliding with the bolt 102 is a collision section 3012, and two ends of the collision section 3012 are respectively guided and transited by a guide piece 302; the impact segment 3012 is disposed within the receiver 200 of the bolt 102.
The guide 302 is a guide ring or a fixed pulley.
The guide member 302 is a fixed pulley, and the suction path 101 is disposed perpendicular to a fixed pulley shaft.
One or two or more impact sections 3012 are arranged on a single impact line 301, guide sections 3011 are arranged between adjacent impact sections 3012, and two ends of each guide section 3011 are in transition guide with the impact sections 3012 through fixed pulleys; each impact segment 3012 mates with one bolt 102 receiver 200 and suction member, each bolt receiver 200 corresponding in position to one bolt 102.
The single collision line 301, the bolt storage box 200 matched with the single collision line, the attraction part 100, the fixed pulley and the sensing unit form a sensing unit group; the detection device comprises one, two or more sensing unit groups, and each sensing unit group is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism.
The sensing unit is a pull rope displacement sensor.
Referring to fig. 4, the alarm mechanism includes:
an alarm unit 401; and
the intermediate relay 402 is in communication connection with each sensing unit;
the alarm unit 401 is electrically connected to an intermediate relay 402.
The application field is the field of bolt connection and wide application, such as the fields of buildings, bridges, mechanical equipment, steel structures, wind power generation assemblies and the like; taking wind power generation equipment as an example, the wind blades are connected with the hub through flanges, and the flanges are connected through a plurality of high-strength bolts.
Because the number of the bolts connected between each wind blade and the hub can reach about 50, the bolts can be divided into four areas, and monitoring is realized through four colliding wires;
a single collision line 301 sequentially penetrates through the plurality of bolt storage boxes 200, holes for accommodating the single collision line 301 to penetrate through are formed in the side walls of the bolt storage boxes 200, a permanent magnet suction block is fixed at the bottom or the side face of each bolt storage box 200, the opening end of each bolt storage box 200 corresponds to the position of a bolt 102, and a collision section 3012 is arranged between the opening end of each bolt storage box 200 and the permanent magnet suction block;
one end of the wire collision 301 is fixed with the flange, the other end (trigger end) is connected with the trigger end of the pull rope displacement sensor, and the pull rope displacement sensor is fixed on the flange;
when the bolt 102 falls off, the bolt is adsorbed by the permanent magnet adsorption block, runs along the adsorption path 101, impacts the wire collision 301, the trigger end of the wire collision 301 pulls the pull rope displacement sensor, the pull rope displacement sensor sends a detection signal to the intermediate relay 402, the intermediate relay 402 of the alarm mechanism receives the monitoring signal, and the electric circuit of the alarm unit 401 is closed under the driving of the monitoring signal;
the alarm unit 401 issues an alarm. The detector can control the wind power equipment to stop, or automatically control the wind power equipment to stop through a reasonable programming system. The sensing signals in the sensing unit can be configured and selected according to the type of the sensor, the output voltage is 24V voltage, the relay can be driven, sound and light alarm is generated, and the wind power safety link can be accessed through the intermediate relay 402.
Referring to fig. 5, each sensing unit belongs to or logic, and as long as one area has the bolt 102 falling off, the whole system generates an alarm.
The pull rope displacement sensor in the system has the following model: the displacement sensor is a WXY31-0404-A1 pull rope displacement sensor provided by Taizhou Quantum electronics, Inc., of course, other types can be selected, and the sensor is not limited in the application.
The types of the relay are as follows: the JYB-714 may be of other types, which is not limited in this application.
The types of the alarm units are as follows: the LTE-1101L may be of other types, which is not limited in this application.
Example 2
Referring to fig. 2 and 3, a bolt failure detection device includes: a bolt 102 fixed on the connecting structure, wherein the outside of the bolt 102 is provided with a suction part 100 which is matched with the bolt 102 for suction, and when the bolt 102 is separated from the connecting structure, the bolt falls along a suction path 101 under the suction force of the suction part 100;
a collision line 301 in a tight state is arranged between the bolt 102 and the suction part 100, and the collision line 301 is intersected with the suction path 101;
at least one of the two end parts of the wire-striking 301 is in triggering connection with a sensing unit; the sensing unit is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism.
The attraction member 100 is a magnet.
One end of the wire collision 301 is fixed, and the other end of the wire collision 301 is in triggering connection with the sensing unit; the area of the collision line 301 colliding with the bolt 102 is a collision section 3012, and two ends of the collision section 3012 are respectively guided and transited by a guide piece 302; the impact section 3012 is disposed within bolt housing box 200.
The guide 302 is a guide ring or a fixed pulley.
The guide member 302 is a fixed pulley, and the suction path 101 is disposed perpendicular to a fixed pulley shaft.
One or two or more impact sections 3012 are arranged on a single impact line 301, guide sections 3011 are arranged between adjacent impact sections 3012, and two ends of each guide section 3011 are in transition guide with the impact sections 3012 through fixed pulleys; each impact segment 3012 mates with a bolt housing box 200 and suction member, each bolt housing box 200 corresponding in position to a bolt 102.
The single collision line 301, the bolt storage box 200 matched with the single collision line, the attraction part 100, the fixed pulley and the sensing unit form a sensing unit group; the detection device comprises one, two or more sensing unit groups, and each sensing unit group is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism.
The sensing unit is a displacement sensor 340, the end part of the wire-striking 301 matched with the sensing unit is a trigger end part, the trigger end part is connected with the outside through a spring 320, a component 330 to be detected is further fixed on the wire-striking 301, and the component 330 to be detected is matched with the displacement sensor 340 for detection.
Referring to fig. 4, the alarm mechanism includes:
an alarm unit 401; and
the intermediate relay 402 is in communication connection with each sensing unit;
the alarm unit 401 is electrically connected to an intermediate relay 402.
A single collision wire 301 sequentially penetrates through the plurality of bolt storage boxes 200, through holes for accommodating the collision wires to penetrate through are formed in the side walls of the bolt storage boxes 200, permanent magnet suction blocks are fixed at the bottom or the side faces of each bolt storage box 200, the open ends of the bolt storage boxes 200 correspond to the positions of the bolts 102, and the collision sections 3012 are located between the open ends of the bolt storage boxes 200 and the permanent magnet suction blocks;
one end of the wire-striking 301 is fixed with the flange, the other end (the trigger end) is connected with the flange through a spring 320, and the component to be detected 330 is fixed on the wire-striking close to the trigger end;
when the bolt 102 falls off, the bolt is adsorbed by the permanent magnet adsorption block, runs along the adsorption path 101, impacts the wire crash 301, the trigger end of the wire crash 301 pulls the spring 320, the component to be detected 330 (preferably a detection plate) moves, the displacement sensor 340 detects a movement signal, the displacement sensor 340 sends a detection signal to the intermediate relay 402, the intermediate relay 402 of the alarm mechanism receives a monitoring signal, and an electric circuit of the alarm unit 401 is closed under the driving of the monitoring signal;
the alarm unit 401 issues an alarm. The detector can control the wind power equipment to stop.
The sensing signals in the sensing unit can be configured and selected according to the type of the sensor, the output voltage is 24V voltage, the relay can be driven, sound and light alarm is generated, and the wind power safety link can be accessed through the intermediate relay 402.
Referring to fig. 5, each sensing unit belongs to or logic, and as long as one area has the bolt 102 falling off, the whole system generates an alarm.
The displacement sensor 340 in the system is a proximity switch, a displacement sensor, a position sensor and the like, and the technology includes but is not limited to mechanical type, photoelectric type, magnetic induction type and ultrasonic type; it should be noted that the proximity switch is preferably of a model PRL12-4DN, the displacement sensor is preferably of a model LK-G85, Keyence, Japan, and the position sensor is preferably of a model SP3-25, although other models may be selected, which is not limited in this application.
The types of the relay are as follows: the JYB-714 may be of other types, which is not limited in this application.
The types of the alarm units are as follows: the LTE-1101L may be of other types, which is not limited in this application.
It should be noted that the embodiments of the present invention are written in a progressive manner, and the differences from the previous embodiments are mainly described, and the same parts in the embodiments may refer to the previous embodiments.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (12)
1. A bolt failure detection device, comprising: the bolt (102) is fixed on the connecting structure, the outside of the bolt (102) is provided with a suction part (100) which is matched with the bolt (102) for suction, and the bolt (102) falls along the suction path (101) under the suction force of the suction part (100) when being separated from the connecting structure;
a collision line (301) in a tight state is arranged between the bolt (102) and the suction part (100), and the collision line (301) is intersected with the adsorption path (101);
at least one of the two end parts of the wire collision (301) is in triggering connection with the sensing unit; the sensing unit is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism.
2. A bolt failure detection arrangement as claimed in claim 1, characterised in that the attractive member (100) is a magnet.
3. The bolt failure detecting device according to claim 2, wherein a bolt housing case (200) is further provided outside the bolt (102), an end portion of the bolt housing case (200) near the bolt (102) is provided with an opening into which the mating bolt (102) falls, and the suction member (100) is provided inside the bolt housing case (200).
4. The bolt failure detection device according to claim 3, wherein one end of the wire strike (301) is fixed, and the other end is in triggering connection with the sensing unit; the collision area of the collision line (301) and the bolt (102) is a collision section (3012), and two ends of the collision section (3012) are respectively guided and transited through a guide piece (302); the impact section (3012) is arranged in the bolt storage box (200).
5. The bolt failure detection device according to claim 4, characterized in that the guide (302) is a guide ring or a fixed pulley.
6. The bolt failure detection device according to claim 5, wherein the guide member (302) is a fixed pulley, and the suction path (101) is disposed perpendicular to a fixed pulley axle.
7. The bolt failure detection device according to claim 6, wherein one or two or more impact sections (3012) are arranged on a single impact line (301), guide sections (3011) are arranged between adjacent impact sections (3012), and two ends of each guide section (3011) are in transition guide with the impact sections (3012) through fixed pulleys; each impact section (3012) is matched with one bolt storage box (200) and the attraction part, and each bolt storage box (200) corresponds to one bolt (102) in position.
8. The bolt failure detection device according to claim 7, wherein the single wire (301) and the bolt housing box (200), the suction part (100), the fixed pulley and the sensing unit matched with the single wire form a sensing unit group; the detection device comprises one, two or more sensing unit groups, and each sensing unit group is in communication connection with the alarm mechanism and transmits the monitoring signal to the alarm mechanism.
9. The bolt failure detection apparatus of any one of claims 1 to 8, wherein the sensing unit is a pull rope displacement sensor.
10. The bolt failure detection device according to any one of claims 1 to 8, wherein the sensing unit is a displacement sensor (340), the end of the striker wire engaged with the sensing unit is a trigger end, the trigger end is connected with the outside through a spring (320), the striker wire is further fixed with a component (330) to be detected, and the component (330) to be detected is engaged with the displacement sensor (340) for detection.
11. The bolt failure detection device of claim 9, wherein the alarm mechanism comprises:
an alarm unit (401); and
the intermediate relay (402), the intermediate relay (402) is connected with each sensing unit in a communication mode;
the alarm unit (401) is electrically connected with the intermediate relay (402).
12. The bolt failure detection device of claim 10, wherein the alarm mechanism comprises:
an alarm unit (401); and
the intermediate relay (402), the intermediate relay (402) is connected with each sensing unit in a communication mode;
the alarm unit (401) is electrically connected with the intermediate relay (402).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982519.2U CN209979218U (en) | 2019-06-27 | 2019-06-27 | Bolt failure detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920982519.2U CN209979218U (en) | 2019-06-27 | 2019-06-27 | Bolt failure detection device |
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| CN209979218U true CN209979218U (en) | 2020-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160772A (en) * | 2019-06-27 | 2019-08-23 | *** | A kind of bolt failure detection device |
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- 2019-06-27 CN CN201920982519.2U patent/CN209979218U/en not_active Withdrawn - After Issue
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160772A (en) * | 2019-06-27 | 2019-08-23 | *** | A kind of bolt failure detection device |
| CN110160772B (en) * | 2019-06-27 | 2024-04-19 | *** | Bolt failure detection device |
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