Safety interlocking device and method based on quick-opening blind plate

Abstract

An interlocking dished head 3 for a pressure vessel 1, the cylinder 1 having collar 2 for engaging the dished end 3. The end cap side wall has teeth 4 mesh with pinion gear cogs 5 to rotate tabs 32 on

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of quick-opening blind plates, and in particular to a safety interlocking device and method based on a quick-opening blind plate. BACKGROUND

[0002] A quick-opening blind plate is a mechanical device that is used on a circular opening of a pressure pipe or container and capable of achieving quick opening or closing; generally, the quick-opening blind plate is composed of components such as a cylinder flange, a head cover, a hook ring or a clamp, a sealing ring, a safety interlocking mechanism, an opening and closing mechanism, a rotating arm, and a short joint (when necessary); and a concept of the blind plate is that with a special structure, the difficulty of opening and closing an end cover is reduced, a time required for opening and closing the end cover is shortened, labor is then saved, and the production efficiency is improved.

[0003] The safety interlocking device is an essential main component in the blind plate, which is a safety device for ensuring that the quick-opening blind plate is not opened accidentally in a closed state; the blind plate typically includes a locking device and can only be unlocked by means of a specific operation, and accordingly a risk caused by accidental opening of the quick-opening blind plate is avoided; such a safety interlocking system can improve the safety and reliability of equipment operation.

[0004] In the process of using the safety interlocking device on a conventional quick-opening blind plate, when the quick-opening blind plate is located in a closed state in a pipe or container, the degree of sealing the pipe or container by the quick-opening blind plate cannot be ensured, resulting in that the performance of sealing the pipe or container by the safety interlocking device cannot be guaranteed; and if the pipe or container has a poor sealing performance or cannot be sealed when the quick-opening blind plate is closed, a medium inside the container or pipe is prone to leakage when the container or pipe is used, which will cause risks such as pollution or explosion, so that the device has large potential security issues in use, and the safety of the device during use is thus reduced. SUMMARY

[0005] In view of above situations, in order to overcome the defects of the conventional technology, the present disclosure provides a safety interlocking device and method based on a quick-opening blind plate to effectively solve the problems of the conventional technology.

[0006] In order to achieve the object described above, the present disclosure provides the following technical solutions. A safety interlocking device based on a quick-opening blind plate includes a high-pressure container, where a corotating collar is mounted on the high-pressure container, a locking cover plate is cooperatively connected to the corotating collar, the corotating collar and the locking cover plate are connected by means of a rotation direction calibration unit, and the rotation direction calibration unit is configured to adjust a closing direction of the locking cover plate; a plurality of cororating toothed ring segments are provided on an outer side wall of the locking cover plate, the cororating toothed ring segment is cooperatively connected to a corotating gear, and a directional normally-open seal assembly is provided on the corotating gear and configured to increase sealability during the connection of the corotating collar and the locking cover plate; the rotation direction calibration unit includes a rotation cylinder provided on the locking cover plate; a profiled rotation plate is provided on the rotation cylinder, a square rotation seat is rotatably mounted on the profiled rotation plate, guiding slide rods are symmetrically provided on a side surface of the square rotation seat, a guiding base plate is slidably provided on the guiding slide rods, the guiding base plate is connected to a corotating lock ring provided on the corotating collar, round corotating rods slidably are provided on the corotating lock ring, and two round corotating rods are jointly connected to an annular grooved bar; the guiding slide rod is sleeved with a guiding spring, one end of the guiding spring is connected to the square rotation seat, and another end is connected to the guiding base plate; a mechanical interlocking mechanism is provided on the guiding base plate, and the mechanical interlocking mechanism is configured to avoid a movement of the locking cover plate under an unsuitable condition from causing the high-pressure container to be in an open state.

[0007] Preferably, the directional normally-open seal assembly includes a corotating shaft provided on a corotating gear; the corotating shaft passes through a corotating base provided on the corotating collar to be connected to a first bevel gear, the first bevel gear is in meshed connection with a second bevel gear, and the second bevel gear is connected to a corotating threaded shaft provided on the corotating base; a lateral displacement block is threadedly mounted on the corotating threaded shaft, a U-shaped square plate is symmetrically provided on the lateral displacement block, round orienting rods are mounted on the U-shaped square plate, and the round orienting rods are slidably connected to the corotating base.

[0008] Preferably, a profiled extension rod is mounted on the U-shaped square plate, the two profiled extension rods are jointly connected to elastic sealing gaskets, and a plurality of elastic sealing gaskets are cooperatively connected to a joint of the corotating collar and the locking cover plate.

[0009] Preferably, a locking rotation limiter is further provided on the locking cover plate and includes a toothed slider provided on the outer side wall of the locking cover plate, a locking slider box is slidably provided on the toothed slider, a square locking plate is mounted on the locking slider box, and the square locking plate is cooperatively connected to the annular grooved bar; a circular mounting bracket is provided on the square locking plate, a driving motor is provided on the circular mounting bracket, an output end of the driving motor is connected to a speed reducer provided on the circular mounting bracket, a driving gear is provided on the speed reducer, and the driving gear is in meshed connection with the toothed slider; a plurality of driving lock blocks are provided on the locking cover plate, and the driving lock blocks are cooperatively connected to driven lock blocks provided in the corotating collar.

[0010] Preferably, the mechanical interlocking mechanism includes limiting rods symmetrically provided on a side surface of the guiding base plate, the two limiting rods are jointly slidably connected to a limiting slide plate, square limiting posts are mounted on the limiting slide plate, and the square limiting posts are cooperatively connected to a plurality of square limiting slots formed in the guide slide rods; the limiting rod is sleeved with a limit spring, one end of the limit spring is connected to a circular limiting plate, another end thereof is connected to the limiting slide plate, and an anti-shaking limiting assembly is connected to the limiting slide plate.

[0011] Preferably, an actuating protrusion box is mounted on the limiting slide plate, the actuating protrusion box is cooperatively connected to an actuating recess provided on the guiding base plate, a movable contact pad is provided on the actuating recess, the movable contact pad is cooperatively connected to a stationary contact pad provided in the actuating protrusion box, the stationary contact pad is in contact with the movable contact pad by means of the connection of a control unit and electric telescopic components provided on the corotating lock ring, and output ends of the electric telescopic components are cooperatively connected in insertion slots in the square limiting posts; the control unit is connected to the corotating collar; the control unit is cooperatively connected to a pressure sensor provided in the locking cover plate.

[0012] Preferably, a guiding cylinder is mounted on the profiled rotation plate, the guiding cylinder is cooperatively connected to a circular guiding groove provided in the corotating lock ring, electrode slices are provided on the circular guiding groove and the guiding cylinder, and the electrode slices are by means of the connection of a control unit and a driving motor.

[0013] Preferably, anti-shaking limiting assembly includes a square fixing seat provided on the limiting slide plate, a steel cord is provided on the square fixing seat, and the steel cord bypasses a fixed pulley to be connected to a winding reel; the fixed pulley is connected to a multi-path base plate provided on the corotating lock ring; a driving rotation shaft is mounted on the winding reel, and the driving rotation shaft passes through the multi-path base plate to be connected to a rotary gear; a clockwork spring is mounted on the driving rotation shaft, and an end point of the clockwork spring is connected to the multi-path base plate.

[0014] Preferably, the rotary gear is in meshed connection with two displacement racks, and guide rails provided on the displacement racks are slidably connected to the multi-path base plate; the displacement rack is connected to a square stop plate by means of a profiled bent rod, two telescopic sleeves are symmetrically provided on the square stop plate, the two telescopic sleeves are jointly connected to an annular attachment plate, and the two annular attachment plates are cooperatively connected to an outer side wall of the high-pressure container; one of the square stop plates is connected to a stop block by means of an elastic connecting rod, and the stop block is cooperatively connected to the lock cover plate.

[0015] The present disclosure further provides a safety interlocking method based on a quick-opening blind plate. The method includes the steps: SI, moving a locking cover plate to a corotating collar by means of a rotation direction calibration unit;

[0016] S2, operating a locking rotation limiter to connect the locking cover plate to the corotating collar, in order to close a high-pressure container;

[0017] S3, avoiding a phenomenon of leakage of the high-pressure container under the action of a directional normally-open seal assembly; and

[0018] S4, providing a mechanical interlocking mechanism to avoid a risk caused by accidental opening of the locking cover plate.

[0019] Compared with the conventional technology, the present disclosure has the following beneficial effects: (1) The lateral displacement blocks perform limited movements on the corotating bases by means of the round orienting rods on the U-shaped square plates, the plurality of elastic sealing gaskets are thus moved toward the center of a circle of the high-pressure container under the action of the profiled extension rods, the plurality of elastic sealing gaskets then come into contact with a joint of the locking cover plate and the corotating collar, and the locking cover plate and the corotating collar are integrally connected under the action of the plurality of elastic sealing gaskets, so that the sealing performance of the high-pressure container is improved when the locking cover plate and the corotating collar are connected, the performance of sealing the high-pressure container during the use of the device is improved, the risks such as pollution or explosion caused by the leakage of a medium in the inside during use are avoided, the potential security issues of the device in use are reduced, and the safety of the device in use is thus reduced. Further, it should be noted that, when the elastic sealing gaskets are connected to the locking cover plate and the corotating collar, the sealing performance during the connection of the locking cover plate and the corotating collar can be increased, and a limiting role can also be played on the connection of the locking cover plate and the corotating collar; since the elastic sealing gaskets and contact surfaces of the locking cover plate and the corotating collar further have a certain friction force, a disengagement phenomenon of the locking cover plate during use is avoided, the locking cover plate and the corotating collar are then connected more tightly, and the limitations of the device during use are reduced.

[0020] (2) The two displacement racks meshed with the rotary gear perform limited opposite movements on the multi-path base plate, the two square stop plates perform opposite movements under the action of the profiled bent rod, the annular attachment plates come into contact with the outer side wall of the high-pressure container by means of the telescopic sleeves, and the telescopic sleeves are thus in a buffered state to connect the two annular attachment plates to the high-pressure container, thus avoiding a phenomenon of shaking thereof during use, and improving the stability of the device during use; also, the annular attachment plates is in contact with the high-pressure container, so that the strength of connection of the corotating collar and the high-pressure container is enhanced, errors at the joint of the corotating collar and the high-pressure container can be avoided, and the limitations of the device during use are reduced; it should be noted that when the limiting slide plate is moved outwardly, the two annular attachment plates are not in contact with the high-pressure container during the opposite movements, thereby driving the stop blocks to move without affecting the movement of the lock cover plate; when an operation of locking the lock cover plate and the corotating collar is completed, the locking cover plate is closely fit at the front of the corotating collar, and the opposite movements of the annular attachment plates drive the stop blocks to move such that the stop blocks come into contact with the side wall of the locking cover plate; by limiting the locking cover plate, the opening of the high-pressure container caused by accidental factors is avoided, the safety and the reliability of the device during use are further enhanced in multiple protection manners, and the large potential security issues during use are avoided.

[0021] (3) The locking cover plate is pushed to perform the limited movement on the guiding base plate by means of the guiding slide rods, such that the guiding springs are in the buffered state until the guiding cylinder on the profiled rotation plate enters into the circular guiding groove, allowing the contact between the two electrode slices, which indicates that the locking cover plate has been moved into contact with the corotating collar at a suitable position, and a signal is thus sent to the control unit, which is used for alerting an operator to pay attention to avoid the failure of cover closing due to the fact that the locking cover plate and the corotating collar are not connected in place, and to avoid a mounting failure caused by a wrong mounting position; meanwhile, a signal is sent to the driving motor, such that the locking cover plate is mounted by the locking rotation limiter, the mounting process is almost automated, the working strength of personnel is reduced, and the mounting efficiency is thus improved; also, when the locking cover plate is moved toward the corotating collar, the square locking plate enters the annular grooved bar, such that the annular grooved bar performs a limited movement on the corotating collar by means of the round corotating rods, playing a supporting role on the locking cover plate without requiring the operator to perform the movement by holding another end of the locking cover plate with his / her hand, and reducing the limitations of the device in use; moreover, the operator does not need a specific alignment for the mounting, and a movement position during the mounting is guided, so that the phenomena such as the mounting failure caused by not-in-place mounting are avoided, and the effect of the device during use is improved; moreover, the poor sealing effect caused by the not-in-place connection of the locking cover plate and the corotating collar is avoided, the potential security issues during the use of the device are reduced, and the safety is improved.

[0022] (4) The square limiting posts are reset and moved to enter the square limiting slots, and the guiding slide rods are then limited, such that the locking cover plate cannot continue to move laterally. Even if the locking rotation limiter releases the limitation to the locking cover plate, the displacement of the locking cover plate does not cause the high-pressure container to be opened, which avoids the opening caused by the accidental factors, and the operator can be notified of the opening only after the pressure sensor in the high-pressure container detects that there is no pressure in the container, that is, after the pressure sensor detects complete pressure relief; meanwhile, after the limiting slide plate is reset and moved, the actuating protrusion box on the limiting slide plate enters the actuating recess on the guiding base plate, the stationary contact pad then comes into contact with the movable contact pad, and the contact of the two contact pads indicates that the guiding slide rods have been limited by the square limiting posts at this moment; in this case, after the control unit receives a signal sent due to the contact of the stationary contact pad and the movable contact pad, the electric telescopic components work, the output ends thereof are connected in the insertion slots in the square limiting posts to limit the square limiting posts, and the signal transmitted by the pressure sensor is received by the control unit; only after the control unit receives a safety signal transmitted by the pressure sensor, the operator can control the square limiting posts to release the limitation to the guiding slide rods by allowing the reset and movement of the electric telescopic components to disconnect the output ends thereof from the square limiting posts; when the pressure sensor monitors that there is still a pressure in the high-pressure container, the control unit cannot operate the electric telescopic components, so that the limitation to the square limiting posts remains all the time, the opening of the high-pressure container caused by the accidental factors or under unsafe conditions is avoided, the potential security issues and limitations of the device in use are reduced, the safety and the reliability of the device in use are also improved, and the phenomenon of accidental opening is avoided.

[0023] (5) The control unit starts the driving motor, allowing the output end thereof to drive the driving gears to rotate by the speed reducer, the driving gears are in a low-rotation-speed and high-torque rotating state at this moment and are thus meshed with the toothed sliders, such that the locking cover plate on the toothed sliders performs the limited movement on the locking slider boxes, then rotating the plurality of driven lock blocks on the locking cover plate to be behind the driving lock blocks, and thus limiting the locking cover plate in a current position; meanwhile, since the limited locking cover plate cannot be reset and moved, a resultant elastic force from the guiding springs in the buffered state causes the front sides of the driven lock blocks to abut against the rear sides of the driven lock blocks to strengthen a friction force of the driving lock blocks and the driven locking blocks in contact, and the locking cover plate and the corotating collar are thus connected more tightly; furthermore, a sealing ring is provided at the joint between the locking cover plate and the corotating collar, thereby ensuring the sealing performance of the high-pressure container in a closed state when the locking cover plate is connected to the corotating collar. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are intended to provide a further understanding of the present disclosure and constitute a part of this specification, are intended to explain the present disclosure together with the embodiments of the present disclosure and do not constitute a limitation on the present disclosure.

[0025] In the drawings: FIG. 1 is a first schematic diagram of an overall structure of the present disclosure.

[0026] FIG. 2 is a structural schematic diagram of a corotating collar of the present disclosure.

[0027] FIG. 3 is a structural schematic diagram of a square limiting pillar of the present disclosure.

[0028] FIG. 4 is a structural schematic diagram of a profiled extension rod of the present disclosure.

[0029] FIG. 5 is a structural schematic diagram of a stop block of the present disclosure.

[0030] FIG. 6 is a structural schematic diagram of a toothed slider of the present disclosure.

[0031] FIG. 7 is a structural schematic diagram of a profiled bent rod of the present disclosure.

[0032] FIG. 8 is a second schematic diagram of the overall structure of the present disclosure.

[0033] FIG. 9 is a structural schematic diagram of a rotation cylinder of the present disclosure.

[0034] FIG. 10 is a partially enlarged structural schematic view of part A in FIG. 4 of the present disclosure.

[0035] FIG. 11 is a structural schematic diagram of a square fixing seat of the present disclosure.

[0036] In the figures: 1. High-pressure container; 2. Corotating collar; 3. Locking cover plate; 4. Corotating toothed ring segments; 5. Corotating gear; 6. Rotation cylinder; 7. Profiled rotation plate; 8. Square rotation seat; 9. Guiding slide rod; 10. Guiding base plate; 11. Corotating lock ring; 12. Round corotating rod; 13. Annular grooved bar; 14. Guiding spring; 15. Corotating shaft; 16. Corotating base; 17. First bevel gear; 18. Second bevel gear; 19. Corotating threaded shaft; 20. Lateral displacement block; 21. U-shaped square plate; 22. Round orienting rod; 23. Profiled extension rod; 24. Elastic sealing gasket; 25. Toothed slider; 26. Locking slider box; 27. Square locking plate; 28. Circular mounting bracket; 29. Driving motor; 30. Speed reducer; 31. Driving gear; 32. Driving lock block; 33. Driven lock block; 34. Limiting rod; 35. Limiting slide plate; 36. Square limiting post; 37. Square limiting slot; 38. Limit spring; 39. Actuating protrusion box; 40. Actuating recess; 41. Movable contact pad; 42. Stationary contact pad; 43. Control unit; 44. Electric telescopic component; 45. Guiding cylinder; 46. Circular guiding groove; 47. Electrode slice; 48. Square fixing seat; 49. Steel cord; 50. Fixed pulley; 51. Winding reel; 52. Multi-path base plate; 53. Driving rotation shaft; 54. Rotary gear; 55. Clockwork spring; 56. Displacement rack; 57. Profiled bent rod; 58. Square stop plate; 59. Telescopic sleeve; 60. Annular attachment plate; 61. Elastic connecting rod; 62. Stop block; and 63. Pressure sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Apparently, the embodiments described are merely some rather than all of the embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments that can be obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0038] As shown in FIGS. 1 to 11, an embodiment of the present disclosure includes a high-pressure container 1, a corotating collar 2 is mounted on the high-pressure container 1, a locking cover plate 3 is cooperatively connected to the corotating collar 2, and a combination of the corotating collar 2 and the locking cover plate 3 may be referred to as a quick-opening blind plate; the locking cover plate 3 and the corotating collar 2 are connected by means of a rotation direction calibration unit, and the rotation direction calibration unit is configured to adjust a closing direction of the locking cover plate 3; a plurality of cororating toothed ring segments 4 are provided on an outer side wall of the locking cover plate 3, the cororating toothed ring segments 4 are cooperatively connected to the corotating gear 5, and a directional normally-open seal assembly is provided on the corotating gear 5 and configured to increase sealability during the connection of the corotating collar 2 and the locking cover plate 3; the rotation direction calibration unit includes a rotation cylinder 6 provided on the locking cover plate 3, a profiled rotation plate 7 is provided on the rotation cylinder 6, and the locking cover plate 3 is rotatable on the profiled rotation plate 7 by means of the rotation cylinder 6; a square rotation seat 8 is rotatably mounted on the profiled rotation plate 7, the profiled rotation plate 7 is rotatable on the square rotation seat 8, guiding slide rods 9 are symmetrically provided on a side surface of the square rotation seat 8, a guiding base plate 10 is slidably provided on the guiding slide rods 9, the guiding base plate 10 is connected to a corotating lock ring 11 provided on the corotating collar 2, round corotating rods 12 are slidably provided on the corotating lock ring 11, and the two round corotating rods 12 are jointly connected to an annular grooved bar 13; the guiding slide rod 9 is sleeved with a guiding spring 14, one end of the guiding spring 14 is connected to the square rotation seat 8, and the other end is connected to the guiding base plate 10; a mechanical interlocking mechanism is provided on the guiding base plate 10, and the mechanical interlocking mechanism is configured to avoid a movement of the locking cover plate 3 under an unsuitable condition from causing the high-pressure container 1 to be in an open state; a guiding cylinder 45 is mounted on the profiled rotation plate 7, the guiding cylinder 45 is cooperatively connected to a circular guiding groove 46 provided in the corotating lock ring 11, electrode slices 47 are provided on the circular guiding groove 46 and the guiding cylinder 45, and the electrode slices 47 are in contact by means of the connection of a control unit 43 and a driving motor 29.

[0039] When the device is specifically used, under the action of the profiled rotation plate 7, a force is applied to the locking cover plate 3, the locking cover plate is allowed to perform a limited rotation on the square rotation seat 8 by means of the profiled rotation plate 7, the locking cover plate 3 is then rotated to a position where the locking cover plate is to the corotating collar 2, and at this time, the locking cover plate 3 is pushed to perform a limited movement on the guiding base plate 10 by means of the guiding slide rods 9, such that the guiding springs 14 are in a buffered state until the guiding cylinder 45 on the profiled rotation plate 7 enters into the circular guiding groove 46, allowing the contact between the two electrode slices 47, which indicates that the locking cover plate 3 has been moved into contact with the corotating collar 2 in place, and a signal is thus sent to the control unit 43, which is used for alerting an operator to pay attention to avoiding the failure of cover closing due to the fact that the locking cover plate 3 and the corotating collar 2 are not connected in place, and to avoid a mounting failure caused by a wrong mounting position meanwhile, a signal is sent to the driving motor 29, such that the locking cover plate 3 is mounted by a locking rotation limiter, the mounting process is almost automated, the working strength of personnel is reduced, and the mounting efficiency is thus improved; also, when the locking cover plate 3 is moved toward the corotating collar 2, a square locking plate 27 enters the annular grooved bar 13, such that the annular grooved bar 13 performs a limited movement on the corotating collar 11 by means of the round corotating rods 12, playing a supporting role on the locking cover plate 3 without requiring the operator to perform the movement by holding another end of the locking cover plate 3 with his / her hand, and reducing the limitations of the device in use; moreover, the operator does not need a specific alignment for the mounting, and a movement position during the mounting is guided, so that the phenomena such as the mounting failure caused by not-in-place mounting are avoided, and the effect of the device during use is improved; moreover, the poor sealing effect caused by the not-in-place connection of the locking cover plate 3 and the corotating collar 2 is avoided, potential security issues during the use of the device are reduced, and the safety is improved.

[0040] The directional normally-open seal assembly of this embodiment includes a corotating shaft 15 provided on a corotating gear 5, the corotating shaft 15 passes through a corotating base 16 provided on the corotating collar 2 to be connected to a first bevel gear 17, the first bevel gear 17 is in meshed connection with a second bevel gear 18, and the size matching of the first bevel gear 17 and the second bevel gear 18 can be selected according to an actual situation, which is used for setting different rotational speeds of a corotating threaded shaft 19; the second bevel gear 18 is connected to a corotating threaded shaft 19 provided on the corotating base 16; a lateral displacement block 20 is threadedly mounted on the corotating threaded shaft 19, a U-shaped square plate 21 is symmetrically provided on the lateral displacement block 20, round orienting rods 22 are mounted on the U-shaped square plate 21, and the round orienting rods 22 are slidably connected to the corotating base 16; the profiled extension rod 23 is mounted on the U-shaped square plate 21, the profiled extension rod 23 has an elastic effect, and when elastic sealing gaskets 24 are in contact with the corotating collar 2 and the locking cover plate 3, a downward movement of the lateral displacement block 20 causes the profiled extension rod 23 to be in a buffered state like the spring; and the two profiled extension rods 23 are jointly connected to the elastic sealing gaskets 24, and a plurality of elastic sealing gaskets 24 are cooperatively connected to a joint of the corotating collar 2 and the locking cover plate 3.

[0041] When the locking cover plate 3 is rotated by the locking rotation limiter, the four cororating toothed ring segments 4 on the locking cover plate rotate together therewith, then driving the corotating gears 5 meshed with the cororating toothed ring segments to rotate, such that the second bevel gears 18 rotate and meanwhile drive the corotating threaded shafts 19 to rotate, the lateral displacement blocks 20 connected threadedly are then moved, allowing the limited movement of the lateral displacement blocks on the corotating bases 16 by means of the round orienting rods 22 on the U-shaped square plates 21, the plurality of elastic sealing gaskets 24 are thus moved toward the center of a circle of the high-pressure container 1 under the action of the profiled extension rods 23, the elastic sealing gaskets 24 then come into contact with the joint of the locking cover plate 3 and the corotating collar 2, and the locking cover plate 3 and the corotating collar 2 are integrally connected under the action of the plurality of elastic sealing gaskets 24, so that the sealing performance of the high-pressure container 1 is improved when the locking cover plate 3 and the corotating collar 2 are connected, the performance of sealing the high-pressure container 1 during the use of the device is improved, the risks such as pollution or explosion caused by the leakage of a medium in the inside during use are avoided, the potential security issues of the device in use are reduced, and the safety of the device in use is thus reduced. Further, it should be noted that, when the elastic sealing gaskets 24 are connected to the locking cover plate 3 and the corotating collar 2, the sealing performance during the connection of the locking cover plate and the corotating collar can be increased, and a limiting role can also be played on the connection of the locking cover plate 3 and the corotating collar 2; since contact surfaces of the elastic sealing gaskets 24 and the locking cover plate and the corotating collar further have a certain friction force, a disengagement phenomenon of the locking cover plate 3 during use is avoided, the locking cover plate 3 and the corotating collar 2 are then connected more tightly, and the limitations of the device during use are thus reduced.

[0042] The locking rotation limiter is further provided on the locking cover plate 3 of this embodiment and includes a toothed slider 25 provided on the outer side wall of the locking cover plate 3, a locking slider box 26 is slidably provided on the toothed slider 25, and the locking slider box 26 is further connected to the toothed slider 25 by means of a friction force; a square locking plate 27 is mounted on the locking slider box 26, and the square locking plate 27 is cooperatively connected to the annular grooved bar 13; a circular mounting bracket 28 is provided on the square locking plate 27, a driving motor 29 is provided on the circular mounting bracket 28, an output end of the driving motor 29 is connected to a speed reducer 30 provided on the circular mounting bracket 28, a driving gear 31 is provided on the speed reducer 30, and the driving gear 31 is in meshed connection with the toothed slider 25; a plurality of driving lock blocks 32 are provided on the locking cover plate 3, the driving lock blocks 32 are cooperatively connected todriven lock blocks 33 provided in the corotating collar 2, and when the square locking plate 27 is not in contact with the annular grooved bar 13, it is indicated that the locking cover plate 3 is not to or in contact with the corotating collar 2; in this case, even though the operator accidentally touches the driving motor 29, the locking cover plate 3 is not caused to slide in the locking slider boxes 26 by means of the toothed sliders 25, thereby avoiding the failure of continuing to perform a mounting operation, which is caused by the phenomenon of misalignment of the driving lock blocks 32 on the locking cover plate 3 and the driven lock blocks 33 on an inner side of the corotating collar 2; only when the locking cover plate 3 is in contact with the corotating collar 2, the square locking plate 27 is supported, and at this moment, the locking cover plate 3 can be rotated by starting the driving motor 29, a protection role is played on the locking cover plate 3 during movement, and the safety of the device in use is improved.

[0043] After the locking cover plate 3 is aligned with the corotating collar 2 by means of the rotation direction calibration unit and the movement operation is completed, the plurality of driving lock blocks 32 on the locking cover plate 3 pass through gaps among the plurality of driven lock blocks 33 on the inner side of the corotating collar 2, and at this time, the driving lock blocks 32 are located behind the driven lock blocks 33 in position, the square locking plate 27 is located in the annular grooved bar 13 at this moment such that the square locking plate 27 is in a limited state; in this case, the control unit 43 starts the driving motor 29, such that the output end thereof drives the driving gears 31 to rotate by the speed reducer 30, the driving gears 31 are in a low-rotation-speed and high-torque rotating state at this moment and are thus meshed with the toothed sliders 25, allowing the locking cover plate 3 on the toothed sliders 25 to perform the limited movement on the locking slider boxes 26, then rotating the plurality of driven lock blocks 33 on the locking cover plate 3 to be behind the driving lock blocks 32, and thus limiting the locking cover plate 3 in a current position; meanwhile, since the limited locking cover plate 3 cannot be reset and moved, a resultant elastic force from the guiding springs 14 in the buffered state causes the front sides of the driven lock blocks 33 to abut against the rear sides of the driven lock blocks 33 to strengthen the friction force of the driving lock blocks and the driven locking blocks in contact, so that the locking cover plate 3 and the corotating collar 2 are tighter; furthermore, a sealing ring is provided at the joint between the locking cover plate 3 and the corotating collar 2, thereby ensuring the sealing performance of the high-pressure container 1 in the closed state when the locking cover plate 3 is connected to the corotating collar 2.

[0044] The mechanical interlocking mechanism of this embodiment includes limiting rods 34 symmetrically provided on a side surface of the guiding base plate 10, the two limiting rods 34 are jointly slidably connected to a limiting slide plate 35, square limiting posts 36 are mounted on the limiting slide plate 35, and the square limiting posts 36 are cooperatively connected to a plurality of square limiting slots 37 formed in the guide slide rods 9; the limiting rod 34 is sleeved with a limit spring 38, one end of the limit spring 38 is connected to a circular limiting plate, the other end thereof is connected to the limiting slide plate 35, and an anti-shaking limiting assembly is connected to the limiting slide plate 35; an actuating protrusion box 39 is mounted on the limiting slide plate 35, the actuating protrusion box 39 is cooperatively connected to an actuating recess 40 provided on the guiding base plate 10, a movable contact pad 41 is provided on the actuating recess 40, the movable contact pad 41 is cooperatively connected to a stationary contact pad 42 provided in the actuating protrusion box 39, the stationary contact pad 42 is in contact with the movable contact pad 41 by means of the connection of the control unit 43 and electric telescopic components 44 provided on a corotating lock ring 11, and output ends of the electric telescopic components 44 are cooperatively connected to insertion slots in the square limiting posts 36; the control unit 43 is connected to the corotating collar 2; and the control unit 43 is cooperatively connected to a pressure sensor 63 provided in the locking cover plate 3, and the pressure sensor 63 is configured to monitor a pressure value in the high-pressure container 1.

[0045] After the rotation direction calibration unit has adjusted the position of the locking cover plate 3, the locking cover plate 3 is to the corotating collar 2 in position at this time and is moved to allow the fit and contact of the locking cover plate 3 and the corotating collar 2; after the locking connection of the locking cover plate 3 to the corotating collar 2 is completed by operating the locking rotation limiter, the limit springs 38 previously in the buffered state are reset by releasing the limiting slide plate 35 previously drawn outwardly, then driving the square limiting posts 36 on the limiting slide plate 35 to reset and move and then enter the square limiting slots 37, thus limiting the guiding slide rods 9, such that the locking cover plate 3 cannot continue to move laterally. Even if the locking rotation limiter releases the limitation to the locking cover plate 3, the displacement of the locking cover plate 3 does not cause the high-pressure container 1 to be opened, which avoids opening caused by accidental factors, and the operator can be notified of the opening only after the pressure sensor 63 in the high-pressure container 1 detects that there is no pressure in the container, that is, after the pressure sensor 63 detects complete pressure relief; meanwhile, after the limiting slide plate 35 is reset and moved, the actuating protrusion box 39 on the limiting slide plate enters the actuating recess 40 on the guiding base plate 10, the stationary contact pad 42 then comes into contact with the movable contact pad 41, and the contact of the two contact pads indicates that the guiding slide rods 9 have been limited by the square limiting posts 36 at this moment; in this case, after the control unit 43 receives a signal sent due to the contact of the stationary contact pad 42 and the movable contact pad 41, the electric telescopic components 44 work, the output ends thereof are connected to the insertion slots in the square limiting posts 36 to limit the square limiting posts 36, and the signal transmitted by the pressure sensor 63 is received by the control unit 43; only after the control unit 43 receives a safety signal transmitted by the pressure sensor 63, the operator can control the square limiting posts 36 to release the limitation to the guiding slide rods 9 by allowing the reset and movement of the electric telescopic components 44 to disconnect the output ends thereof from the square limiting posts 36; when the pressure sensor 63 monitors that there is still a pressure in the high-pressure container 1, the control unit 43 cannot operate the electric telescopic components 44, so that the limitation to the square limiting posts 36 remains all the time, the opening of the high-pressure container 1 caused by the accidental factors or under unsafe conditions is avoided, the potential security issues and limitations of the device in use are reduced, the safety and the reliability of the device in use are also improved, and the phenomenon of accidental opening is avoided.

[0046] The anti-shaking limiting assembly of this embodiment includes a square fixing seat 48 provided on the limiting slide plate 35, a steel cord 49 is provided on the square fixing seat 48, a specific cable material used is selected according to an actual situation, the steel cord 49 bypasses a fixed pulley 50 to be connected to a winding reel 51, and a limiting mechanism is provided on the fixed pulley 50 to avoid the situation that the steel cord 49 cannot fit with the fixed pulley 50 during use; the fixed pulley 50 is connected to a multi-path base plate 52 provided on the corotating lock ring 11; a driving rotation shaft 53 is mounted on the winding reel 51, and the driving rotation shaft 53 passes through the multi-path base plate 52 to be connected to a rotary gear 54; a clockwork spring 55 is mounted on the driving rotation shaft 53, an elastic force of the clockwork spring 55 is greater than that of a telescopic sleeve 59, and an end point of the clockwork spring 55 is connected to the multi-path base plate 52; the rotary gear 54 is in meshed connection with two displacement racks 56, and guide rails provided on the displacement racks 56 are slidably connected to the multi-path base plate 52; the displacement rack 56 is connected to a square stop plate 58 by means of a profiled bent rod 57, two telescopic sleeves 59 are symmetrically provided on the square stop plate 58, the two telescopic sleeves 59 are jointly connected to an annular attachment plate 60, and a surface of the annular attachment plate 60 has a rubber pad, so that the friction force during the contact of the annular attachment plate and the high-pressure container 1 can be increased, and shaking can be avoided; two annular attachment plates 60 are cooperatively connected to an outer side wall of the high-pressure container 1; one of the square stop plates 58 is connected to a stop block 62 by means of an elastic connecting rod 61, the stop block 62 is cooperatively connected to the lock cover plate 3, and the stop block 62 can be attached to the outer side wall of the lock cover plate 3.

[0047] When the limiting slide plate 35 is reset and moved, it is indicated that the position of the locking cover plate 3 needs to be limited; when the locking cover plate 3 has been connected to the corotating collar 2 by means of the locking rotation limiter, the reset and movement of the limiting slide plate 35 allow the clockwork spring 55 to be in a reset state under the action of the steel cord 49, the fixed pulley 50 and the winding reel 51, and the winding reel 51 then resets and rotates, driving the rotary gear 54 to rotate by driving the driving rotation shaft 53, such that the two displacement racks 56 meshed with the rotary gear perform limited opposite movements on the multi-path base plate 52, the two square stop plates 58 perform opposite movements under the action of the profiled bent rod 57, the annular attachment plates 60 come into contact with the outer side wall of the high-pressure container 1 by means of the telescopic sleeves 59, and the telescopic sleeves 59 are thus in a buffered state to connect the two annular attachment plates 60 to the high-pressure container 1, thus avoiding the phenomenon of shaking thereof during use, and improving the stability of the device during use; also, the annular attachment plates 60 are in contact with the high-pressure container 1, so that the strength of connection of the corotating collar 2 and the high-pressure container 1 is enhanced, errors at the joint of the corotating collar and the high-pressure container can be avoided, and the limitations of the device during use are reduced; it should be noted that when the limiting slide plate 35 is moved outwardly, the two annular attachment plates 60 are not in contact with the high-pressure container 1 during the opposite movements, thereby driving the stop blocks 62 to move without affecting the movement of the lock cover plate 3; when an operation of locking the lock cover plate and the corotating collar 2 is completed, the locking cover plate 3 is closely fit at the front of the corotating collar 2, and the opposite movements of the annular attachment plates 60 drive the stop blocks 62 to move such that the stop blocks come into contact with the side wall of the locking cover plate 3; by limiting the locking cover plate, the opening of the high-pressure container 1 caused by the accidental factors is avoided, the safety and the reliability of the device during use are further enhanced in multiple protection manners, and the large potential security issues during use are avoided.

[0048] The present disclosure further provides a safety interlocking method based on a quick-opening blind plate. The method includes the steps: SI, moving a locking cover plate 3 to a corotating collar 2 by means of a rotation direction calibration unit;

[0049] S2, operating a locking rotation limiter to connect the locking cover plate 3 and the corotating collar 2, in order to close a high-pressure container 1;

[0050] S3, avoiding a phenomenon of leakage of the high-pressure container 1 under the action of a directional normally-open seal assembly;

[0051] S4, providing a mechanical interlocking mechanism to avoid a risk caused by the accidental opening of the locking cover plate 3.

[0052] It should be noted that in this specification, relative terms such as “first” and “second” are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that such an actual relationship or order exists between these entities or operations. Moreover, the terms “include”, “comprise”, or any other variants thereof are intended to cover a non-exclusive inclusion, so that a process, a method, an article, or a device that includes a list of elements not only includes those elements but also includes other elements that are not listed, or further includes elements inherent to such a process, method, article, or device.

[0053] Although embodiments of the present disclosure have been shown and described, it will be appreciated by those of ordinary skill in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principle and spirit of the present disclosure, and the scope of the present disclosure is defined by the appended claims and their equivalents.

Claims

1. A safety interlocking device based on a quick-opening blind plate, comprising: a high-pressure container (1), a corotating collar (2) being mounted on the high-pressure container (1), and a locking cover plate (3) being cooperatively connected to the corotating collar (2), wherein the corotating collar (2) and the locking cover plate (3) are connected by means of a rotation direction calibration unit, and the rotation direction calibration unit is configured to adjust a closing direction of the locking cover plate (3); whereina plurality of cororating toothed ring segments (4) are provided on an outer side wall of the locking cover plate (3), the cororating toothed ring segments (4) are cooperatively connected to the corotating gear (5), and a directional normally-open seal assembly is provided on the corotating gear (5) and configured to increase sealability during the connection of the corotating collar (2) and the locking cover plate (3);the rotation direction calibration unit comprises a rotation cylinder (6) provided on the locking cover plate (3), a profiled rotation plate (7) is provided on the rotation cylinder (6), a square rotation seat (8) is rotatably mounted on the profiled rotation plate (7), guiding slide rods (9) are symmetrically provided on a side surface of the square rotation seat (8), a guiding base plate (10) is slidably provided on the guiding slide rods (9), the guiding base plate (10) is connected to a corotating lock ring (11) provided on the corotating collar (2), round corotating rods (12) are slidably provided on the corotating lock ring (11), and two round corotating rods (12) are jointly connected to an annular grooved bar (13); and the guiding slide rod (9) is sleeved with a guiding spring (14), one end of the guiding spring (14) is connected to the square rotation seat (8), and another end is connected to the guiding base plate (10); a mechanical interlocking mechanism is provided on the guiding base plate (10), and the mechanical interlocking mechanism is configured to avoid a movement of the locking cover plate (3) under an unsuitable condition from causing the high-pressure container (1) to be in an open state.

2. The safety interlocking device based on the quick-opening blind plate according to claim 1, wherein the directional normally-open seal assembly comprises a corotating shaft (15) provided on a corotating gear (5); the corotating shaft (15) passes through a corotating base (16) provided on the corotating collar (2) to be connected to a first bevel gear (17), the first bevel gear (17) is in meshed connection with a second bevel gear (18), and the second bevel gear (18) is connected to a corotating threaded shaft (19) provided on the corotating base (16); and a lateral displacement block (20) is threadedly mounted on the corotating threaded shaft (19), a U-shapedsquare plate (21) is symmetrically provided on the lateral displacement block (20), round orienting rods (22) are mounted on the U-shaped square plate (21), and the round orienting rods (22) are slidably connected to the corotating base (16).

3. The safety interlocking device based on the quick-opening blind plate according to claim 2, wherein a profiled extension rod (23) is mounted on the U-shaped square plate (21), two profiled extension rods (23) are jointly connected to elastic sealing gaskets (24), and a plurality of elastic sealing gaskets (24) are cooperatively connected to a joint of the corotating collar (2) and the locking cover plate (3).

4. The safety interlocking device based on the quick-opening blind plate according to claim 1, wherein a locking rotation limiter is further provided on the locking cover plate (3) and comprises a toothed slider (25) provided on the outer side wall of the locking cover plate (3), a locking slider box (26) is slidably provided on the toothed slider (25), a square locking plate (27) is mounted on the locking slider box (26), and the square locking plate (27) is cooperatively connected to the annular grooved bar (13); a circular mounting bracket (28) is provided on the square locking plate (27), a driving motor (29) is provided on the circular mounting bracket (28), an output end of the driving motor (29) is connected to a speed reducer (30) provided on the circular mounting bracket (28), a driving gear (31) is provided on the speed reducer (30), and the driving gear (31) is in meshed connection with the toothed slider (25); and a plurality of driving lock blocks (32) are provided on the locking cover plate (3), and the driving lock blocks (32) are cooperatively connected to driven lock blocks (33) provided in the corotating collar (2).

5. The safety interlocking device based on the quick-opening blind plate according to claim 1, wherein the mechanical interlocking mechanism comprises limiting rods (34) symmetrically provided on a side surface of the guiding base plate (10), two limiting rods (34) are jointly slidably connected to a limiting slide plate (35), square limiting posts (36) are mounted on the limiting slide plate (35), and the square limiting posts (36) are cooperatively connected to a plurality of square limiting slots (37) formed in the guide slide rods (9); and the limiting rod (34) is sleeved with a limit spring (38), one end of the limit spring (38) is connected to a circular limiting plate, another end thereof is connected to the limiting slide plate (35), and an anti-shaking limiting assembly is connected to the limiting slide plate (35).

6. The safety interlocking device based on the quick-opening blind plate according to claim5, wherein an actuating protrusion box (39) is mounted on the limiting slide plate (35), the actuating protrusion box (39) is cooperatively connected to an actuating recess (40) provided on the guiding base plate (10), a movable contact pad (41) is provided on the actuating recess (40), the movable contact pad (41) is cooperatively connected to a stationary contact pad (42) provided in the actuating protrusion box (39), the stationary contact pad (42) is in contact with the movable contact pad (41) by means of the connection of a control unit (43) and electric telescopic components (44) provided on the corotating lock ring (11), and output ends of the electric telescopic components (44) are cooperatively connected in insertion slots in the square limiting posts (36); the control unit (43) is connected to the corotating collar (2); and the control unit (43) is cooperatively connected to a pressure sensor (63) provided in the locking cover plate (3).

7. The safety interlocking device based on the quick-opening blind plate according to claim 1, wherein a guiding cylinder (45) is mounted on the profiled rotation plate (7), the guiding cylinder (45) is cooperatively connected to a circular guiding groove (46) provided in the corotating lock ring (11), electrode slices (47) are provided on the circular guiding groove (46) and the guiding cylinder (45), and the electrode slices (47) are in contact by means of the connection of a control unit (43) and a driving motor (29).

8. The safety interlocking device based on the quick-opening blind plate according to claim 5, wherein anti-shaking limiting assembly comprises a square fixing seat (48) provided on the limiting slide plate (35), a steel cord (49) is provided on the square fixing seat (48), and the steel cord (49) bypasses a fixed pulley (50) to be connected to a winding reel (51); the fixed pulley (50) is connected to a multi-path base plate (52) provided on the corotating lock ring (11); a driving rotation shaft (53) is mounted on the winding reel (51), and the driving rotation shaft (53) passes through the multi-path base plate (52) to be connected to a rotary gear (54); and a clockwork spring (55) is mounted on the driving rotation shaft (53), and an end point of the clockwork spring (55) is connected to the multi-path base plate (52).

9. The safety interlocking device based on the quick-opening blind plate according to claim 8, wherein the rotary gear (54) is in meshed connection with two displacement racks (56), guide rails provided on the displacement racks (56) are slidably connected to the multi-path base plate (52); the displacement rack (56) is connected to a stop square plate (58) by means of a profiled bent rod (57), two telescopic sleeves (59) are symmetrically provided on the square stop plate(58), the two telescopic sleeves (59) are jointly connected to an annular attachment plate (60), and the two annular attachment plates (60) are cooperatively connected to an outer side wall of the high-pressure container (1); and one of the square stop plates (58) is connected to a stop block (62) by means of an elastic connecting rod (61), and the stop block (62) is cooperatively connected to the locking cover plate (3).

10. A safety interlocking method based on a quick-opening blind plate, which uses a safety interlocking device based on a quick-opening blind plate of claim 4, the method comprising the steps:SI, moving a locking cover plate (3) to a corotating collar (2) by means of a rotation direction calibration unit;S2, operating a locking rotation limiter to connect the locking cover plate (3) to the corotating collar (2), in order to close a high-pressure container (1);S3, avoiding a phenomenon of leakage of the high-pressure container (1) under the action of a directional normally-open seal assembly; andS4, providing a mechanical interlocking mechanism to avoid a risk caused by the accidental opening of the locking cover plate (3).

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