A bolt device for high-speed rail with a loosening warning mechanism

Abstract

The present invention relates to the technical field of mechanical accessories, and specifically to a bolt device for high-speed railways with a loosening warning mechanism, which includes a bolt head. A threaded column is connected to the bottom end of the bolt head, and a connecting nut is screwed onto the threaded column. The threaded column is connected with: a first fixing component, which is located at the top end of the threaded column and is connected to the bottom surface of the bolt head. The first fixing component is used to lock and fix the top end of the threaded column; a second fixing component, which is connected to the connecting nut. The second fixing component is used to fix the connecting nut to prevent the connecting nut from rotating synchronously with the threaded column when the threaded column is screwed into the connecting nut. This bolt device uses two groups of fixing components and a locking mechanism in cooperation with a warning system. The pressure sensor monitors the tightening and loosening state of the bolt in real time. When the bolt becomes loose, corresponding measures can be taken in a timely manner to lock and fix the bolt, prevent the bolt from loosening, and handle it more promptly, avoiding the occurrence of potential safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical parts, and particularly to a bolt device for high-speed rail with a loosening warning mechanism. Background Technique

[0002] Railway transportation safety not only affects the production efficiency and economic benefits of the enterprise itself, but also has a significant impact on society and the economy. Railway transportation safety is a comprehensive manifestation of the normal operation order of the transportation production system and the intactness of transportation equipment. At present, the high-speed rail cause in our country is developing rapidly, which greatly facilitates people's travel. High-speed rail has higher requirements for safety, which requires more reliable bolts that can effectively prevent falling off. Due to the vibration effect during railway operation, various components used need to undergo a large number of experiments by relevant departments and pass the operation assessment to confirm their safety, durability and stability. Among them, the fastening bolts used in high-speed rail are in large quantities, and bolts are required for fixing at some important joints of high-speed rail. However, high-speed rail will generate continuous high-frequency vibrations during driving, which can easily cause common ordinary bolts to become loose, posing certain safety hazards. Therefore, improvements are needed. Summary of the Invention

[0003] The purpose of the present invention is to provide a bolt device for high-speed rail with a loosening warning mechanism to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A bolt device for high-speed rail with a loosening warning mechanism includes a bolt head. The bottom end of the bolt head is connected to a threaded column, and a connecting nut is screwed on the threaded column. The threaded column is connected with:

[0005] A first fixing component, which is located at the top end of the threaded column and connected to the bottom surface of the bolt head. The first fixing component is used to lock and fix the top end of the threaded column.

[0006] A second fixing component, which is connected to the connecting nut. The second fixing component is used to fix the connecting nut to prevent the connecting nut from rotating synchronously with the threaded column when the threaded column is screwed into the connecting nut.

[0007] Preferably, the connection between the top end of the threaded column and the bolt head is a connection part, and a cardridge is provided on the side wall of the connection part for one week.

[0008] Preferably, the first fixing component is embedded and installed on the upper surface of the bolt installation position. The first fixing component includes a first fixing ring. The threaded column passes through the center of the first fixing ring. A number of positioning blocks are provided on the side wall of the first fixing ring, and the positioning blocks are used for limiting the installation of the first fixing ring. A locking mechanism for preventing the threaded column from loosening and rotating back is provided inside the first fixing ring.

[0009] Preferably, the positioning block is fixedly installed in the installation groove at the corresponding position by glue or soldering.

[0010] Preferably, an annular groove is formed on the upper surface of the first fixing ring. The annular groove and the first fixing ring are coaxially arranged. An activity ring is movably arranged in the annular groove. A plurality of balls are installed on the upper surface of the activity ring. When the bolt is tightened, the bolt head moves downward, and the bottom surface of the bolt head presses against the activity ring and rotates. The balls can reduce the friction between the two and thus reduce wear. A plurality of connecting springs are connected to the bottom surface of the activity ring. Pressure sensors are connected to the bottoms of two of the connecting springs. When the bolt is installed, the bottom surface of the bolt head presses against the activity ring and applies pressure to the pressure sensors through the connecting springs. The pressure sensors monitor the pressure in real time.

[0011] Preferably, a cavity is formed on the inner side wall of the first fixing ring. The locking mechanism includes a clamping column movably arranged in the cavity. One end of the clamping column facing the opening of the cavity is a pointed structure. A central push plate is arranged on the clamping column. A group of adsorption plates are fixedly arranged in the cavity. The central push plate is adsorbed on the adsorption plates. A top push spring is arranged in the cavity. The top push spring is sleeved on the other end of the clamping column, and a blocking frame is connected to the end of the top push spring. The blocking frame blocks the top push spring and the top push spring is in a compressed state. The blocking frame is fixed in the cavity through a connecting wire.

[0012] Preferably, the connecting wire will directly fuse when a certain value of current passes through it.

[0013] Preferably, the bolt device is used in cooperation with an early warning system. The early warning system includes an induction module, a signal adjustment module, a microcontroller, an alarm device, an emergency processing module and a control module; the induction module includes a pressure sensor; the signal adjustment module is used to receive the sensor signal sent by the pressure sensor, amplify, filter and linearize the sensor signal to make it suitable for the microcontroller to process; the microcontroller is used to process the sensor signal, execute algorithms and control the alarm logic; the alarm device is used for abnormal alarm; the emergency processing module is used to receive the control instruction signal sent by the microcontroller and then make corresponding emergency processing through the locking mechanism; the control module provides a user interface to display the current pressure value and allows the user to set the alarm threshold;

[0014] The pressure sensor senses the pressure of the bolt head on the lower part in real time. When the pressure value is greater than or equal to the threshold, it indicates that the bolt is in a tightened state. When the pressure sensed by the pressure sensor is less than the threshold, it indicates that the bolt is loose. The microcontroller receives the abnormal signal and makes abnormal handling. The alarm device issues an alarm to notify the abnormal situation. The emergency treatment module makes emergency treatment, passes an electric current through the connecting wire to fuse the connecting wire. After the connecting wire is fused, under the elastic force of the pushing spring, the blocking frame is pushed, and then the central push plate and the clamping column are pushed. The end of the clamping column abuts against the connecting part and is stuck in the corrugation to prevent the threaded column from rotating further and making the screw looser.

[0015] Preferably, a nut top ring is arranged at the upper end of the connecting nut. A docking groove is arranged inside the nut top ring, and a plurality of positioning grooves are formed on the inner side wall of the docking groove.

[0016] Preferably, the second fixing component and the first fixing component are installed in the same way. The second fixing component includes a second fixing ring. A protruding ring is arranged at the bottom of the second fixing ring. The protruding ring is correspondingly embedded in the docking groove. A plurality of positioning bumps are arranged on the side wall of the protruding ring. The positioning bumps are correspondingly stuck in the positioning grooves. A magnetic ring is arranged on the periphery of the protruding ring on the bottom surface of the second fixing ring. The top surface of the nut top ring is adsorbed on the magnetic ring.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] A high-speed rail bolt device with a loosening warning mechanism proposed by the present invention. The bolt device uses two groups of fixing components and a locking mechanism in cooperation with a warning system. The pressure sensor monitors the tightening and loosening state of the bolt in real time. When the bolt is loose, corresponding measures are taken in time, the bolt can be locked and fixed, preventing the bolt from loosening, the treatment is more timely, and the occurrence of potential safety hazards is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the bolt device of the present invention.

[0020] Figure 2 It is a schematic diagram of the connection structure of the threaded column of the present invention.

[0021] Figure 3 It is a schematic diagram of the top structure of the threaded column of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the first fixing component of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the movable ring of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the locking mechanism of the present invention.

[0025] Figure 7 This is a schematic structural diagram of the second fixing component of the present invention.

[0026] Figure 8 This is a schematic structural diagram of the connecting nut of the present invention.

[0027] In the figure: bolt head 1, threaded column 2, connecting portion 3, corrugation 301, first fixing ring 4, positioning block 5, movable ring 6, ball 7, connecting spring 8, pressure sensor 9, clamping post 10, central pushing plate 11, adsorption plate 12, top pushing spring 13, blocking frame 14, connecting wire 15, second fixing ring 16, protruding ring 17, positioning convex block 1701, magnetic ring 18, connecting nut 19, nut top ring 20, docking groove 21, positioning groove 2101. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a high-speed rail bolt device with a loosening warning mechanism, including a bolt head 1, the bottom end of the bolt head 1 is connected to a threaded column 2, and a connecting nut 19 is screwed on the threaded column 2. When using this bolt device, like a common bolt, place the bolt head 1 and the connecting nut 19 on both sides of the installation location, then pass the threaded column 2 through the installation hole and screw it into the connecting nut 19, just screw it in. Connected to the threaded column 2 are:

[0030] The first fixing component, which is located at the top end of the threaded column 2 and is connected to the bottom surface of the bolt head 1, and is used to lock and fix the top end of the threaded column 2;

[0031] The second fixing component, which is connected to the connecting nut 19, and is used to fix the connecting nut 19 to prevent the connecting nut 19 from rotating synchronously with the threaded column 2 when the threaded column 2 is screwed into the connecting nut 19.

[0032] The connection part between the top end of the threaded column 2 and the bolt head 1 is the connecting portion 3, and a corrugation 301 is provided on the circumferential side wall of the connecting portion 3.

[0033] The first fixing component is embedded and installed on the upper surface of the bolt installation position. The first fixing component includes a first fixing ring 4. The threaded column 2 passes through the center of the first fixing ring 4. A plurality of positioning blocks 5 are arranged on the side wall of the first fixing ring 4. The positioning blocks 5 are used for limiting and installing the first fixing ring 4. The positioning blocks 5 are fixedly installed in the installation grooves at corresponding positions by glue or soldering. The installation method is not fixed and can be easily removed. The electrical connection of all internal structures can be achieved by existing technologies. Therefore, no description of the circuit structure is made in the present invention.

[0034] An annular groove is formed on the upper surface of the first fixing ring 4. The annular groove and the first fixing ring 4 are coaxially arranged. A movable ring 6 is movably arranged in the annular groove. A plurality of balls 7 are installed on the upper surface of the movable ring 6. When the bolt is tightened, the bolt head 1 moves downward, and the bottom surface of the bolt head 1 presses against the movable ring 6 and rotates. The balls 7 can reduce the friction between the two and thus reduce wear. A plurality of connecting springs 8 are connected to the bottom surface of the movable ring 6. A pressure sensor 9 is connected to the bottom of two of the connecting springs 8. When the bolt is installed, the bottom surface of the bolt head 1 presses against the movable ring 6 and applies pressure to the pressure sensor 9 through the connecting springs 8. The pressure sensor 9 monitors the pressure in real time.

[0035] A locking mechanism for preventing the threaded column 2 from loosening and rotating is arranged in the first fixing ring 4. A cavity is formed on the inner side wall of the first fixing ring 4. The locking mechanism includes a clamping column 10 movably arranged in the cavity. One end of the clamping column 10 facing the opening of the cavity is a sharp-cornered structure. A central push plate 11 is arranged on the clamping column 10. A group of adsorption plates 12 are fixedly arranged in the cavity. The central push plate 11 is adsorbed on the adsorption plates 12. A top push spring 13 is arranged in the cavity. The top push spring 13 is sleeved on the other end of the clamping column 10, and a blocking frame 14 is connected to the end of the top push spring 13. The blocking frame 14 blocks the top push spring 13 and the top push spring 13 is in a compressed state. The blocking frame 14 is fixed in the cavity through a connecting wire 15. When a certain value of current passes through the connecting wire 15, it will directly fuse. The connecting wire 15 only needs to be able to fix the blocking frame 14 and will not be pushed off by the top push spring 13. The magnitude of the fusing current depends on the connecting wire 15.

[0036] The bolt device is used in conjunction with an early warning system, which includes an induction module, a signal conditioning module, a microcontroller, an alarm device, an emergency processing module, and a control module; the induction module includes a pressure sensor 9; the signal conditioning module is used to receive the sensor signal sent by the pressure sensor 9, amplify, filter, and linearize the sensor signal to make it suitable for processing by the microcontroller; the microcontroller is used to process the sensor signal, execute algorithms, and control the alarm logic; the alarm device is used for abnormal alarm; the emergency processing module is used to receive the control instruction signal sent by the microcontroller and then make corresponding emergency processing through the locking mechanism; the control module provides a user interface to display the current pressure value and allows the user to set the alarm threshold; the pressure sensor 9 senses the pressure of the bolt head 1 on the lower part in real time. When the pressure value is greater than or equal to the threshold, it indicates that the bolt is in a tightened state. When the pressure sensed by the pressure sensor 9 is less than the threshold, it indicates that the bolt is loose. The microcontroller receives the abnormal signal and makes abnormal processing. The alarm device issues an alarm to notify the abnormal situation. The emergency processing module makes emergency processing, passes an electric current through the connecting wire 15 to fuse the connecting wire 15. After the connecting wire 15 is fused, under the elastic force of the pushing spring 13, the blocking frame 14 is pushed, and then the central push plate 11 and the clamping column 10 are pushed. The end of the clamping column 10 abuts against the connecting part 3 and is stuck in the corrugation 301 to prevent the threaded column 2 from rotating further and making the screw looser.

[0037] A nut top ring 20 is provided at the upper end of the connecting nut 19. A docking groove 21 is provided in the nut top ring 20, and a plurality of positioning grooves 2101 are opened on the inner side wall of the docking groove 21. The installation method of the second fixing component and the first fixing component is the same. The second fixing component includes a second fixing ring 16. A protruding ring 17 is provided at the bottom of the second fixing ring 16. The protruding ring 17 is correspondingly embedded in the docking groove 21. A plurality of positioning protrusions 1701 are provided on the side wall of the protruding ring 17. The positioning protrusions 1701 are correspondingly stuck in the positioning grooves 2101. A magnetic ring 18 is provided on the periphery of the protruding ring 17 on the bottom surface of the second fixing ring 16. The top surface of the nut top ring 20 is adsorbed on the magnetic ring 18. When a common bolt is used, there will be a problem, that is, when tightening, the screw and the nut will rotate synchronously, which will make the connection not firm. Therefore, when the bolt device in the present invention is used, first, the connecting nut 19 and the protruding ring 17 are docked, and the nut top ring 20 is adsorbed on the magnetic ring 18 so that the positioning protrusions 1701 are correspondingly inserted into the positioning grooves 2101. At this time, when the threaded column 2 is rotated, the connecting nut 19 will not rotate therewith, making the connection more stable.

[0038] The bolt device is used in conjunction with the early warning system through two groups of fixing components and a locking mechanism. The pressure sensor 9 monitors the tightening and loosening state of the bolt in real time. When the bolt becomes loose, corresponding measures are taken in time, and the bolt can be locked and fixed to prevent the bolt from becoming loose. The treatment is more timely, avoiding the occurrence of potential safety hazards.

[0039] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bolt device for high-speed railway with a loosening warning mechanism, comprising a bolt head, a threaded column connected to the bottom end of the bolt head, and a connecting nut screwed on the threaded column, characterized in that: The threaded column is connected with: The first fixing component is located at the top of the threaded column and connected to the bottom surface of the bolt head. The first fixing component is used to lock and fix the top of the threaded column. The first fixing component is embedded in the upper surface of the bolt installation location. The first fixing component includes a first fixing ring. The threaded column passes through the center of the first fixing ring. A plurality of positioning blocks are arranged on the side wall of the first fixing ring. The positioning blocks are used to limit the installation of the first fixing ring. A locking mechanism is arranged inside the first fixing ring to prevent the threaded column from loosening and rotating. The inner side of the first fixing ring A cavity is opened on the wall, and the locking mechanism includes a card column movably arranged in the cavity, and one end of the card column facing the cavity opening is a pointed structure, a central push plate is arranged on the card column, and a group of adsorption plates are fixedly arranged in the cavity, and the central push plate is adsorbed on the adsorption plate, and a push spring is arranged in the cavity, and the push spring is sleeved on the other end of the card column, and a blocking frame is connected to the end of the push spring, and the blocking frame blocks the push spring and the push spring is in a compressed state, and the blocking frame is fixed in the cavity by a connecting wire, and the connecting wire will be directly melted when a certain value of current passes through it; The bolt device is used in conjunction with an early warning system, which includes a sensing module, a signal conditioning module, a microcontroller, an alarm device, an emergency processing module and a control module; the sensing module includes a pressure sensor; the signal conditioning module is used to receive the sensor signal sent by the pressure sensor, amplify, filter, and linearize the sensor signal to make it suitable for processing by the microcontroller; the microcontroller is used to process the sensor signal, execute the algorithm, and control the alarm logic; the alarm device is used for abnormal alarm; the emergency processing module is used to receive the control command signal sent by the microcontroller, and then make corresponding emergency processing through the locking mechanism; the control module provides the user The interface displays the current pressure value and allows the user to set the alarm threshold. The pressure sensor senses the pressure of the bolt head on the bottom in real time. When the pressure value is greater than or equal to the threshold, it indicates that the bolt is in a tightened state. When the pressure sensed by the pressure sensor is less than the threshold, it indicates that the bolt is loose. The microcontroller receives the abnormal signal and performs abnormal processing. The alarm device issues an alarm to inform of the abnormal situation. The emergency processing module performs emergency processing and passes current to the connecting wire to fuse the connecting wire. After the connecting wire fuses, the blocking frame is pushed under the action of the push spring elastic force, thereby pushing the center push plate and the clamping column. The end of the clamping column abuts against the connecting part and is stuck in the clamping corrugation to prevent the threaded column from continuing to rotate and making the screw looser. The second fixing component is connected to the connecting nut and is used to fix the connecting nut to prevent the connecting nut from rotating synchronously with the threaded column when the threaded column is screwed into the connecting nut.

2. A high-speed railway bolt device with a loosening warning mechanism according to claim 1, characterized in that: The connection between the top end of the threaded column and the bolt head is a connection part, and a corrugation is provided on a peripheral side wall of the connection part.

3. A high-speed railway bolt device with a loosening warning mechanism according to claim 1, characterized in that: The positioning block is fixedly installed in the installation groove at the corresponding position by glue or soldering.

4. A high-speed railway bolt device with a loosening warning mechanism according to claim 1, characterized in that: An annular groove is provided on the upper surface of the first fixed ring, the annular groove and the first fixed ring are coaxially arranged, a movable ring is movably arranged in the annular groove, and a plurality of ball bearings are installed on the upper surface of the movable ring. When the bolt is tightened, the bolt head moves downward, and the bottom surface of the bolt head is pressed tightly against the movable ring and rotates. The ball bearings can reduce the friction between the two and thus reduce wear. A plurality of connecting springs are connected to the bottom surface of the movable ring, and pressure sensors are connected to the bottom of two of the connecting springs. When the bolt is installed, the bottom surface of the bolt head presses the movable ring and applies pressure to the pressure sensor through the connecting spring, and the pressure sensor monitors the pressure in real time.

5. A high-speed railway bolt device with a loosening warning mechanism according to claim 1, characterized in that: The upper end of the connecting nut is provided with a nut top ring, a docking groove is provided inside the nut top ring, and a plurality of positioning grooves are opened on the inner side wall of the docking groove.

6. A high-speed railway bolt device with a loosening warning mechanism according to claim 1, characterized in that: The second fixing component is installed in the same manner as the first fixing component. The second fixing component includes a second fixing ring. A protruding ring is arranged at the bottom of the second fixing ring. The protruding ring is correspondingly embedded in the docking groove. A plurality of positioning protrusions are arranged on the side wall of the protruding ring. The positioning protrusions are correspondingly stuck in the positioning groove. A magnetic ring is arranged on the periphery of the protruding ring on the bottom surface of the second fixing ring, and the top surface of the nut top ring is adsorbed on the magnetic ring.

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