CN117823620A - High-precision pressure alarm - Google Patents
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- CN117823620A CN117823620A CN202410238867.4A CN202410238867A CN117823620A CN 117823620 A CN117823620 A CN 117823620A CN 202410238867 A CN202410238867 A CN 202410238867A CN 117823620 A CN117823620 A CN 117823620A
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Abstract
The invention relates to the technical field of alarm devices, in particular to a high-precision pressure alarm which is used for solving the problem that the detection result of the existing alarm is easy to deviate under vibration; the indicating mechanism obtains the value of the pressure sensor; judging the numerical range of the pressure sensor; deriving whether the indicating mechanism is executing an alarm; the indicating mechanism and the pressure sensor are both arranged outside the pressure space, so that the phenomenon that the acquired numerical value of the sensor deviates due to interference caused by equipment operation due to the fact that the sensor is directly arranged inside equipment to acquire pressure parameters by the traditional alarm is avoided, the pressure release mechanism can release pressure on the granulator, and the safety of equipment operation is improved.
Description
Technical Field
The invention relates to the technical field of alarm devices, in particular to a high-precision pressure alarm.
Background
In pressure vessel applications, a universal pressure alarm is a very important safety device. It is used to monitor the internal pressure of a pressure vessel in real time and to alarm when the pressure exceeds a preset safety threshold, so as to prevent dangerous situations such as rupture or explosion of the vessel due to overpressure.
The conventional general pressure alarm usually adopts a mechanical or electronic pressure sensor to trigger an alarm by sensing the pressure change of the pressure container, so that the pressure sensor of the conventional pressure alarm is usually installed inside the pressure container, and the types of stored objects or processed objects inside the pressure container for different purposes are different, and for storing certain pressure containers with stronger corrosiveness or larger vibration in the processing process, the pressure sensor is easily influenced when being installed inside the pressure container, so that the detection result is deviated, and the accuracy is reduced.
Disclosure of Invention
The invention provides a high-precision pressure alarm, which aims to solve the problem that the detection result of the existing alarm is easy to deviate under vibration.
In order to alleviate the technical problems, the technical scheme provided by the invention is as follows:
the high-precision pressure alarm comprises an indicating mechanism, wherein a pressure sensor is arranged at the lower part of the indicating mechanism; the indicating mechanism obtains the value of the pressure sensor; judging the numerical range of the pressure sensor; the indicating mechanism does not perform an alarm when the pressure sensor value is in a safe value range; recording the high pressure value duration when the pressure sensor value is in a high pressure value range, and executing an alarm by the indicating mechanism when the high pressure value duration reaches a threshold value; when the pressure sensor value is not lower than a dangerous value, the indicating mechanism executes an alarm; the safety value range, the high-voltage value range and the dangerous value are all preset values by a user.
Further, the pressure value obtained by the pressure sensor is assigned asThe safety value range is assigned asThe high voltage value range is assigned +.>The dangerous value is givenThe value is +.>The method comprises the steps of carrying out a first treatment on the surface of the High voltage value duration threshold value is assigned +.>The high-voltage value duration is assigned +.>The method comprises the steps of carrying out a first treatment on the surface of the Wherein (1)>When the pressure sensor value is in a safe value range, the indicating mechanism does not execute an alarm; />When the pressure sensor value is in the high pressure value range, the indicating means records the high pressure value duration +.>When->And->When the indication mechanism executes an alarm; />When the indication mechanism executes an alarm.
Still further, the device also comprises a pressure release mechanism; when the pressure exceeds the limit and does not reach the pressure bearing critical value, the pressure release mechanism intermittently releases pressure; and when the pressure is not lower than the dangerous value, the pressure release mechanism continuously releases the pressure, and the pressure release mechanism triggers the indicating mechanism.
Further, the pressure relief mechanism comprises a pressure relief cylinder, and a pressure relief pipe is communicated between the pressure relief cylinder and the pressure space; the pressure release cylinder is internally and slidably connected with an exhaust column, the side wall of the exhaust column is attached to the inner wall of the pressure release cylinder, an L-shaped hole is formed in the pressure release cylinder, and the lower opening and the upper opening of the L-shaped hole are respectively formed in the bottom wall and the side wall of the exhaust column; when the exhaust column moves upwards and the upper opening of the L-shaped hole moves out of the pressure release cylinder, pressure is released through the L-shaped hole.
Still further, still include the transmission stop gear, the said transmission stop gear includes the locking tooth, the said locking tooth dead axle rotates in the lateral part of the said exhaust column, there are teeth meshed with said locking tooth on the lateral wall of the said exhaust column; the transmission limiting mechanism further comprises a transmission rod, the transmission rod and the locking teeth are coaxially arranged, and a torsion spring is connected between the transmission rod and the locking teeth; the transmission rod is rotatably arranged at the side part of the exhaust column; when the transmission rod does not rotate, the exhaust column moves upwards and drives the locking teeth to rotate, so that the torsion spring stores energy; when the transmission rod rotates, the energy storage of the torsion spring is released.
Further, the upper part of the exhaust column is in linear sliding connection with a switching frame, and the lower part of the switching frame is connected with a first locking ring and a second locking ring; the locking teeth are coaxially connected with a rotating shaft, the rotating shaft slides in the first locking ring, and the transmission rod slides in the second locking ring; the rotary shaft is connected with a first conical locking piece, the transmission rod is connected with a second conical locking piece, the rotary shaft is locked when the first locking ring is abutted against the first conical locking piece, and the transmission rod is locked when the second locking ring is abutted against the second conical locking piece; the switching frame can switch and lock the rotating shaft or the transmission rod when in linear sliding.
Still further, be provided with first inclined plane on the exhaust column, be provided with the second inclined plane on the switching frame, when the exhaust column moved up, thereby first inclined plane laminating in the second inclined plane thereby the exhaust column promotes the switching frame removes.
Further, the indicating mechanism comprises an audible and visual alarm, the pressure vessel is connected with a mounting seat, and the audible and visual alarm is fixedly pivoted on the mounting seat; the installation seat is vertically and rotatably connected with a rotating rod, two ends of the rotating rod are respectively connected with a first cylindrical gear and a first bevel gear, the end part of the transmission rod is connected with a second bevel gear meshed with the first bevel gear, and the lower part of the audible and visual alarm is connected with a second cylindrical gear meshed with the first cylindrical gear; when the transmission rod is unlocked and releases the elasticity of the torsion spring, the transmission rod can rotate reciprocally and drive the audible and visual alarm to rotate reciprocally.
Furthermore, the switching frame is connected with two guide rods, the mounting seat is provided with a through hole matched with the guide rods, the guide rods are sleeved with springs, and two ends of each spring are respectively connected with the mounting seat and the switching frame.
Further, a magnet is connected to the mounting base, and when the switching frame is close to the magnet, the magnet attracts the switching frame.
The beneficial effects of the invention are analyzed as follows:
the high-precision pressure alarm comprises an indicating mechanism, wherein a pressure sensor is arranged at the lower part of the indicating mechanism; the indicating mechanism obtains the value of the pressure sensor; judging the numerical range of the pressure sensor; the indicating mechanism does not perform an alarm when the pressure sensor value is in a safe value range; recording the high pressure value duration when the pressure sensor value is in a high pressure value range, and executing an alarm by the indicating mechanism when the high pressure value duration reaches a threshold value; when the pressure sensor value is not lower than a dangerous value, the indicating mechanism executes an alarm; the safety value range, the high-voltage value range and the dangerous value are all preset values by a user.
The pressure value obtained by the pressure sensor is fed back to the indicating mechanism, the pressure sensor is arranged at the lower part of the indicating mechanism, the indicating mechanism is arranged outside the pressure container, so that the pressure sensor is not influenced by the internal space environment of the pressure container, when the indicating mechanism receives the pressure value of the pressure sensor, the pressure value is detected firstly, when the pressure value is in a safety range, the indicating mechanism does not execute warning operation, meanwhile, the value of the pressure sensor is continuously detected, when the pressure value rises to exceed the safety range, the indicating mechanism firstly detects whether the pressure value is in a high pressure range or the pressure value is not lower than a dangerous value, if the pressure value is not lower than the dangerous value, the indicating mechanism executes alarming action, when the pressure value is lower than the dangerous value and is in the high pressure range, the indicating mechanism counts the time that the pressure value is in the high pressure range, and when the time exceeds a threshold, the indicating mechanism executes alarming action.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described, and it is apparent that the drawings in the description below are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a logic diagram of an indication mechanism according to the present invention;
FIG. 2 is a schematic diagram of the whole structure of the present invention;
FIG. 3 is a schematic diagram of the whole structure of the present invention;
FIG. 4 is a schematic diagram of a pressure relief mechanism according to the present invention;
FIG. 5 is a schematic view of the indicating mechanism of the present invention;
FIG. 6 is a schematic view of the structure of the L-shaped hole of the present invention;
FIG. 7 is a schematic view of a driving limiting mechanism according to the present invention;
FIG. 8 is a schematic view of the structure of the locking tooth of the present invention;
FIG. 9 is a schematic view of the structure of the torsion spring of the present invention;
fig. 10 is a schematic structural view of the switch frame of the present invention.
Icon:
100. a granulator; 110. a feed pipe; 111. a feed pump; 120. a motor; 130. a discharge pipe; 200. a pressure release mechanism; 210. a mounting plate; 220. a pressure release cylinder; 230. an intermediate chamber; 231. a boss; 240. a pressure relief tube; 241. a filter screen; 250. an exhaust column; 251. an L-shaped aperture; 252. a first inclined surface; 300. an indication mechanism; 310. a mounting base; 320. an audible and visual alarm; 330. a second cylindrical gear; 340. a rotating rod; 350. a first cylindrical gear; 360. a first bevel gear; 370. a second bevel gear; 400. a transmission limiting mechanism; 410. a switching frame; 411. a first locking ring; 412. a second locking ring; 413. a second inclined surface; 420. a rotating shaft; 421. a first tapered locking piece; 430. locking teeth; 431. a circular ring; 432. a torsion spring; 440. teeth; 450. a transmission rod; 451. a second tapered locking piece; 460. a guide rod; 461. a spring; 470. and (3) a magnet.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in fig. 1, a high-precision pressure alarm comprises an indicating mechanism 300, wherein a pressure sensor is arranged at the lower part of the indicating mechanism 300; the indicating mechanism 300 obtains the pressure sensor value; judging the numerical range of the pressure sensor; the indicating mechanism 300 does not perform an alarm when the pressure sensor value is in the safe value range; recording a high pressure value duration when the pressure sensor value is in the high pressure value range, and when the high pressure value duration reaches a threshold value, instructing the mechanism 300 to execute an alarm; the indication mechanism 300 performs an alarm when the pressure sensor value is not lower than the hazard value; the safety value range, the high-voltage value range and the dangerous value are all preset values for users.
The working mechanism of the pressure alarm provided by the embodiment is as follows:
the pressure value obtained by the pressure sensor is fed back to the indicating mechanism 300, the pressure sensor is arranged at the lower part of the indicating mechanism 300, the indicating mechanism 300 is positioned outside the pressure container, so that the pressure sensor is not influenced by the internal space environment of the pressure container, when the indicating mechanism 300 receives the pressure value of the pressure sensor, the pressure value is detected firstly, when the pressure value is in a safe range, the indicating mechanism 300 does not execute warning operation, meanwhile, the numerical value of the pressure sensor is continuously detected, when the pressure value rises to be out of the safe range, the indicating mechanism 300 firstly detects whether the pressure value is in the high pressure range or the pressure value is not lower than a dangerous value, if the pressure value is not lower than the dangerous value, the indicating mechanism 300 executes alarming action, when the pressure value is lower than the dangerous value and is in the high pressure range, the indicating mechanism 300 counts the time that the pressure value is in the high pressure range, and when the time exceeds a threshold, the indicating mechanism 300 executes alarming action.
In the alternative of this embodiment, it is preferable that:
the value of the pressure obtained by the pressure sensor is assigned asThe security value range is assigned +.>High voltage value range assignmentIs->The risk value is assigned +.>The method comprises the steps of carrying out a first treatment on the surface of the High voltage value duration threshold value is assigned +.>The high-voltage value duration is assigned +.>The method comprises the steps of carrying out a first treatment on the surface of the Wherein (1)>When the pressure sensor value is in the safe value range, the indicating mechanism 300 does not perform an alarm;when the pressure sensor value is in the high pressure value range, the indicating means 300 records the high pressure value duration +.>When->And->When the indication mechanism 300 performs an alarm; />When the indication mechanism 300 executes an alarm.
The values of the above assignments can be edited, and when the alarm is used, the assignment ranges are adjusted according to the parameters of the pressure container, so that the alarm can be suitable for pressure containers with different parameters and other equipment needing pressure monitoring.
As shown in fig. 2-10, the pressure vessel is provided with an indicating mechanism 300; the pressure release mechanism 200 and the indicating mechanism 300 are arranged outside the pressure container, a pressure sensor is arranged at the lower part of the indicating mechanism 300, and the pressure release mechanism 200 can move upwards and exert pressure on the pressure sensor; the indicating mechanism 300 obtains the pressure sensor value; judging the numerical range of the pressure sensor; the indicating mechanism 300 does not perform an alarm when the pressure sensor value is in the safe value range; recording a high pressure value duration when the pressure sensor value is in the high pressure value range, and when the high pressure value duration reaches a threshold value, instructing the mechanism 300 to execute an alarm; the indication mechanism 300 performs an alarm when the pressure sensor value is not lower than the hazard value; the safety value range, the high-voltage value range and the dangerous value are all preset values for users.
The working mechanism of the pressure container provided by the embodiment is as follows:
the indicating mechanism 300 and the pressure sensor are both arranged outside the pressure container, so that the phenomenon that the pressure sensor is interfered by equipment operation caused by the fact that the pressure parameter is acquired by the sensor in the equipment is avoided by the traditional alarm, the acquired value of the sensor is deviated due to the fact that the equipment operates, the pressure release mechanism 200 can release the pressure of the pressure container, the safety of the equipment operation is improved, the pressure sensor which can move and is close to the lower part of the indicating mechanism 300 when the pressure release mechanism 200 operates is improved, the moving distance is increased when the pressure in the pressure container is increased, when the pressure release mechanism 200 contacts the pressure sensor, if the pressure in the pressure container is continuously increased, the pressure caused by the pressure release mechanism 200 to the pressure sensor is also increased, the pressure sensor acquires the pressure of the pressure release mechanism 200 to the pressure to reflect the pressure in the pressure container, the indicating mechanism 300 determines whether to execute an alarm action according to the pressure caused by the pressure sensor by the pressure release mechanism 200, wherein when the pressure value is in a safety range, the pressure container can bear the pressure, the indicating mechanism 300 does not execute the alarm action, the pressure in the pressure container can be fluctuated when the pressure is in a high pressure value range due to the operation of the equipment, the indicating mechanism 300 counts the duration of the high pressure state of the pressure value when the pressure value range acquired by the pressure sensor is in the high pressure value range, if the high pressure state exists continuously and exceeds a time threshold, the indicating mechanism 200 can not release the pressure in the pressure container to the safety value range, at the moment, the indicating mechanism 300 executes the alarm operation, because the pressure release mechanism 200 operates when the pressure sensor receives the pressure, the pressure in the pressure container is excessively high when the pressure value is larger than or equal to a dangerous value, the indication mechanism 300 performs an alarm action on the horse, which is necessary for the malfunction or jam of the apparatus.
In the alternative of this embodiment, it is preferable that:
the indication mechanism 300 may emit an audible and visual signal; the pressure release mechanism 200 is communicated with the inner space of the pressure vessel; when the pressure in the pressure container exceeds the limit and does not reach the pressure bearing critical value of the pressure container, the pressure release mechanism 200 intermittently releases the pressure for the pressure container; when the pressure inside the pressure vessel is not lower than the dangerous value, the pressure release mechanism 200 continuously releases the pressure for the pressure vessel, and the pressure release mechanism 200 triggers the indicating mechanism 300.
The pressure vessel is provided with the inlet pipe 110, the inlet pipe 110 is connected with external materials and the pressure vessel, the inlet pump 111 on the inlet pipe 110 pumps the external materials into the pressure vessel, the motor 120 is connected with the crushing shaft in the pressure vessel to crush the materials, the processed feed is discharged through the discharge pipe 130, the valve is arranged on the discharge pipe 130, the feed in the pressure vessel has enough time to crush, the indicating mechanism 300 feeds back the running state of the pressure vessel, the pressure release mechanism 200 releases the pressure in the pressure vessel, after the pressure in the pressure vessel is increased to be higher than the proper pressure in the pressure vessel, the pressure release mechanism 200 operates, the pressure in the pressure vessel is intermittently released, the pressure is prevented from being too low while being released, the equipment is prevented from being damaged by high pressure, when the pressure in the equipment is too high, the pressure release mechanism 200 continuously operates, meanwhile, the indicating mechanism 200 is triggered to operate, the pressure release mechanism 200 continuously releases the pressure in the pressure vessel, the indicating mechanism 300 sends out an audible and visual signal to prompt, and the personnel to overhaul.
Regarding the structure of the pressure release mechanism 200, specifically:
the pressure release mechanism 200 comprises a pressure release cylinder 220, and a pressure release pipe 240 is communicated between the pressure release cylinder 220 and the pressure container; the pressure release cylinder 220 is slidably connected with an exhaust column 250, the side wall of the exhaust column 250 is attached to the inner wall of the pressure release cylinder 220, an L-shaped hole 251 is formed in the side wall, and a lower opening and an upper opening of the L-shaped hole 251 are respectively formed in the bottom wall and the side wall of the exhaust column 250; when the air discharge column 250 moves up and the upper opening of the L-shaped hole 251 moves out of the pressure release cylinder 220, pressure is released through the L-shaped hole 251.
The pressure release cylinder 220 is connected to the outer wall of the pressure vessel through the mounting plate 210, the pressure in the pressure vessel is transferred to the pressure release cylinder 220 through the pressure release pipe 240, when the pressure in the pressure vessel is increased, the pressure transfer makes the exhaust column 250 move upwards in the pressure release cylinder 220, when the upper opening of the L-shaped hole 251 moves to the outside of the pressure release cylinder 220, the pressure is discharged through the L-shaped hole 251, after the pressure is reduced, the exhaust column 250 moves downwards, so that the upper opening of the L-shaped hole 251 is plugged again, and the pressure in the pressure vessel is not discharged any more.
In the alternative of this embodiment, it is preferable that:
the inner wall of the pressure release cylinder 220 is provided with a boss 231, the exhaust column 250 is positioned at the upper part of the boss 231, the lower part of the boss 231 is provided with a middle cavity 230, and the pressure release pipe 240 is communicated with the middle cavity 230.
The provision of the boss 231 allows the vent post 250 to be received and the intermediate chamber 230 provided for positional compensation of the transversely disposed pressure relief tube 240.
In the alternative of this embodiment, it is preferable that:
one end of the pressure release pipe 240 located inside the pressure vessel is connected with a filter screen 241.
The arrangement of the filter screen 241 prevents the feed powder in the pressure vessel from entering the pressure relief pipe 240, thereby avoiding the pressure relief pipe 240 from being blocked to affect the pressure relief.
Regarding the structure of the transmission limiting mechanism 400, specifically:
the device further comprises a transmission limiting mechanism 400, wherein the transmission limiting mechanism 400 comprises locking teeth 430, the locking teeth 430 are pivoted on the side part of the exhaust column 250, and teeth 440 meshed with the locking teeth 430 are arranged on the side wall of the exhaust column 250; the transmission limiting mechanism 400 further comprises a transmission rod 450, wherein the transmission rod 450 and the locking teeth 430 are coaxially arranged, and a torsion spring 432 is connected between the transmission rod 450 and the locking teeth 430; the transmission rod 450 is rotatably arranged at the side part of the exhaust column 250; when the transmission rod 450 does not rotate, the air discharging column 250 moves upwards and drives the locking tooth 430 to rotate, so that the torsion spring 432 stores energy; as the drive rod 450 rotates, the stored energy of the torsion spring 432 is released.
When the exhaust column 250 moves up, the locking teeth 430 are connected with the torsion springs 432 through the circular rings 431, the circular rings 431 are coaxially arranged with the transmission rod 450, the torsion springs 432 are arranged between the circular rings 431 and the transmission rod 450, the exhaust column 250 drives the locking teeth 430 to rotate through the teeth 440, at the moment, the locking teeth 430 rotate relative to the transmission rod 450, the torsion springs 432 deform, the deformed torsion springs 432 apply rotation to the locking teeth 430, and therefore when the pressure in the pressure container is released in a proper range, the force of the torsion springs 432 enables the exhaust column 250 not to move up for pressure relief.
In the alternative of this embodiment, it is preferable that:
the switching frame 410 is connected to the upper part of the exhaust column 250 in a linear sliding manner, and the first locking ring 411 and the second locking ring 412 are connected to the lower part of the switching frame 410; the locking teeth 430 are coaxially connected with a rotating shaft 420, the rotating shaft 420 slides in the first locking ring 411, and the transmission rod 450 slides in the second locking ring 412; the rotating shaft 420 is connected with a first conical locking piece 421, the transmission rod 450 is connected with a second conical locking piece 451, the rotating shaft 420 is locked when the first locking ring 411 is abutted against the first conical locking piece 421, and the transmission rod 450 is locked when the second locking ring 412 is abutted against the second conical locking piece 451; the switching frame 410 can switch the locking shaft 420 or the driving rod 450 when sliding linearly.
In the initial state, the first locking ring 411 is not abutted with the first conical locking piece 421, the second locking ring 412 is abutted with the second conical locking piece 451, at this time, the rotating shaft 420 connected with the locking teeth 430 can rotate, the transmission rod 450 is not rotated, when the exhaust column 250 moves up and pushes the switching frame 410, the rotating shaft 420 is locked, the transmission rod 450 is unlocked, the locking teeth 430 are not rotated when the rotating shaft 420 is locked, the exhaust column 250 is limited by the locking teeth 430, at this time, the exhaust column 250 is not moved any more, the pressure in the pressure container is continuously discharged through the L-shaped hole 251, and after the transmission rod 450 is unlocked, the transmission rod 450 rotates due to the action of the torsion spring 432, so that the force of the torsion spring 432 is released, and the torsion force applied to the locking teeth 430 is reduced.
In the alternative of this embodiment, it is preferable that:
the exhaust column 250 is provided with a first inclined plane 252, the switching frame 410 is provided with a second inclined plane 413, and when the exhaust column 250 moves upwards, the first inclined plane 252 is attached to the second inclined plane 413 so that the exhaust column 250 pushes the switching frame 410 to move.
The continuous increase of pressure increases the distance that the air discharge column 250 moves upwards, and when the air discharge column 250 moves upwards to the highest position, the first inclined surface 252 is attached to the second inclined surface 413, so that the air discharge column 250 pushes the switching frame 410, and at this time, the switching frame 410 moves laterally.
Regarding the structure of the indicating mechanism 300, specifically:
the indicating mechanism 300 comprises an audible and visual alarm 320, the pressure vessel is provided with a mounting seat 310, the mounting seat 310 can be directly connected with the pressure vessel, shock absorption is arranged at the connecting part of the two, the influence of the vibration of the pressure vessel on the indicating mechanism 300 is reduced, the mounting seat 310 can be directly arranged outside and is not rigidly connected with the pressure vessel, so that the indicating mechanism 300 is basically not influenced by the vibration of the pressure vessel, the influence of the pressure sensor is reduced, and the audible and visual alarm 320 is pivoted on the mounting seat 310; a rotating rod 340 is vertically and rotatably connected to the mounting seat 310, a first cylindrical gear 350 and a first bevel gear 360 are respectively connected to two ends of the rotating rod 340, a second bevel gear 370 meshed with the first bevel gear 360 is connected to the end part of the transmission rod 450, and a second cylindrical gear 330 meshed with the first cylindrical gear 350 is connected to the lower part of the audible and visual alarm 320; when the transmission rod 450 is unlocked and the elasticity of the torsion spring 432 is released, the transmission rod 450 can rotate reciprocally and drive the audible and visual alarm 320 to rotate reciprocally.
The air exhaust column 250 moves up to the highest place to squeeze and trigger the switch of the control audible and visual alarm 320, when the locking of the transmission rod 450 is released, the action of the torsion spring 432 enables the transmission rod 450 to rotate, thereby the transmission rod 450 drives the audible and visual alarm 320 to rotate through the rotary rod 340, the sounding direction on the audible and visual alarm 320 is fixed towards the office position of the maintainer when the audible and visual alarm 320 stops rotating, the maintainer can be timely prompted, and when the audible and visual alarm 320 is initially started, the transmission rod 450 is in a rotating state and drives the audible and visual alarm 320 to rotate, at the moment, the audible and visual alarm 320 rotates and enables the sound of the audible and visual alarm 320 to transversely and comprehensively diffuse, so that nearby people in a workshop can be timely prompted to ensure timely treatment of accidents, and when no people are nearby, the sound of the audible and visual alarm 320 is right to the maintainer office after the elastic release of the torsion spring 432 is finished, the pressure release mechanism 200 is continuously operated, and the pressure in the pressure container can be avoided from continuously increasing to cause accidents.
In the alternative of this embodiment, it is preferable that:
the switching frame 410 is connected with two guide rods 460, the mounting seat 310 is provided with through holes matched with the guide rods 460, the guide rods 460 are sleeved with springs 461, and two ends of each spring 461 are respectively connected with the mounting seat 310 and the switching frame 410.
The guide rod 460 positions the movement of the switching frame 410, and the spring 461 pushes the switching frame 410 elastically, so that the locking effect of the transmission rod 450 in the initial state is ensured, and the locking teeth 430 can apply a restoring force to the exhaust column 250.
In the alternative of this embodiment, it is preferable that:
the mounting base 310 is connected with a magnet 470, and when the switching frame 410 approaches the magnet 470, the magnet 470 attracts the switching frame 410.
After the switching frame 410 is pushed by the exhaust column 250, the switching frame 410 can be close to the magnet 470, and at this time, the magnet 470 adsorbs the switching frame 410, so that the position of the switching frame 410 is fixed, and the locking effect on the rotating shaft 420 is ensured, so that the position of the exhaust column 250 is locked, and the pressure in the pressure container is ensured to be released stably.
Example two
The pressure alarm in the first embodiment of the invention can be applied to the granulator 100, the pressure release mechanism 200 of the pressure alarm is communicated with the granulator 100, and the indicating mechanism 300 is externally arranged outside the granulator 100;
in the production process, the granulator 100 needs to bear a certain pressure, and in the production process, due to various reasons, such as too high feeding speed, overload of a driving device, equipment blockage and the like, the internal pressure of the equipment is possibly increased rapidly, a sensor is usually arranged in the equipment to obtain the internal pressure of the equipment, the vibration of the inside of the granulator 100 is large in operation, the sensor is easy to damage or deviation of a detection result under vibration, so that the alarm cannot timely send out an alarm, the granulator 100 adopts the alarm of the first embodiment, the situation that the vibration of the inside of the granulator 100 is large in operation, the sensor is easy to damage or deviation of the detection result under vibration is easy to occur, and the alarm cannot timely send out an alarm is caused;
in addition, the alarm can also be used for a feed packaging device.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limited thereto; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A high-precision pressure alarm is characterized in that;
the device comprises an indicating mechanism (300), wherein a pressure sensor is arranged at the lower part of the indicating mechanism (300);
the indicating mechanism (300) obtains the pressure sensor value;
judging the numerical range of the pressure sensor;
-the indication means (300) does not perform an alarm when the pressure sensor value is in a safe value range;
recording the high pressure value duration when the pressure sensor value is in a high pressure value range, and when the high pressure value duration reaches a threshold value, the indication mechanism (300) performs an alarm;
-the indication means (300) perform an alarm when the pressure sensor value is not lower than a dangerous value;
the safety value range, the high-voltage value range and the dangerous value are all preset values by a user.
2. The high-accuracy pressure alarm of claim 1, wherein;
the pressure value obtained by the pressure sensor is assigned asThe safety value range is assigned as +.>The high voltage value range is assigned +.>The risk value is assigned +.>；
High voltage value duration threshold assignment asThe high-voltage value duration is assigned +.>；
Wherein,when the pressure sensor value is in a safe value range, the indication mechanism (300) does not execute an alarm;
when the pressure sensor value is at a high pressure value-range, said indication means (300) recording said high voltage value duration +.>When->And->-said indication means (300) executing an alarm when;
when the indication mechanism (300) performs an alarm.
3. The high-accuracy pressure alarm of claim 1, wherein;
also comprises a pressure release mechanism (200);
when the pressure exceeds the limit and does not reach the pressure bearing critical value, the pressure release mechanism (200) intermittently releases pressure;
when the pressure is not lower than the dangerous value, the pressure release mechanism (200) continuously releases pressure, and the pressure release mechanism (200) triggers the indicating mechanism (300).
4. A high accuracy pressure alarm according to claim 3, wherein;
the pressure relief mechanism (200) comprises a pressure relief cylinder (220), and a pressure relief pipe (240) is communicated between the pressure relief cylinder (220) and the pressure space;
an exhaust column (250) is connected in a sliding manner in the pressure release cylinder (220), the side wall of the exhaust column (250) is attached to the inner wall of the pressure release cylinder (220), an L-shaped hole (251) is formed in the pressure release cylinder, and a lower opening and an upper opening of the L-shaped hole (251) are respectively formed in the bottom wall and the side wall of the exhaust column (250);
when the vent column (250) moves up and the upper opening of the L-shaped hole (251) moves out of the pressure release cylinder (220), pressure is released through the L-shaped hole (251).
5. The high-accuracy pressure alarm of claim 4, wherein;
the device further comprises a transmission limiting mechanism (400), wherein the transmission limiting mechanism (400) comprises locking teeth (430), the locking teeth (430) are pivoted on the side part of the exhaust column (250), and tooth teeth (440) meshed with the locking teeth (430) are arranged on the side wall of the exhaust column (250);
the transmission limiting mechanism (400) further comprises a transmission rod (450), the transmission rod (450) and the locking teeth (430) are coaxially arranged, and a torsion spring (432) is connected between the transmission rod (450) and the locking teeth (430);
the transmission rod (450) is rotatably arranged at the side part of the exhaust column (250);
when the transmission rod (450) does not rotate, the exhaust column (250) moves upwards and drives the locking teeth (430) to rotate, so that the torsion spring (432) stores energy;
when the transmission rod (450) rotates, the energy storage of the torsion spring (432) is released.
6. The high-accuracy pressure alarm of claim 5, wherein;
the upper part of the exhaust column (250) is in linear sliding connection with a switching frame (410), and the lower part of the switching frame (410) is connected with a first locking ring (411) and a second locking ring (412);
the locking teeth (430) are coaxially connected with a rotating shaft (420), the rotating shaft (420) slides in the first locking ring (411), and the transmission rod (450) slides in the second locking ring (412);
the rotating shaft (420) is connected with a first conical locking block (421), the transmission rod (450) is connected with a second conical locking block (451), the rotating shaft (420) is locked when the first locking ring (411) is abutted to the first conical locking block (421), and the transmission rod (450) is locked when the second locking ring (412) is abutted to the second conical locking block (451);
the switching frame (410) can switch the locking rotating shaft (420) or the transmission rod (450) when sliding linearly.
7. The high-accuracy pressure alarm of claim 6, wherein;
be provided with first inclined plane (252) on exhaust column (250), be provided with second inclined plane (413) on switch frame (410), when exhaust column (250) are moved up, first inclined plane (252) laminating in thereby second inclined plane (413) exhaust column (250) promote switch frame (410) removal.
8. The high-accuracy pressure alarm of claim 6, wherein;
the indicating mechanism (300) comprises an audible and visual alarm (320), the pressure vessel is connected with a mounting seat (310), and the audible and visual alarm (320) is fixedly pivoted on the mounting seat (310);
a rotating rod (340) is vertically and rotatably connected to the mounting seat (310), a first cylindrical gear (350) and a first bevel gear (360) are respectively connected to two ends of the rotating rod (340), a second bevel gear (370) meshed with the first bevel gear (360) is connected to the end part of the transmission rod (450), and a second cylindrical gear (330) meshed with the first cylindrical gear (350) is connected to the lower part of the audible and visual alarm (320);
when the transmission rod (450) is unlocked and the elasticity of the torsion spring (432) is released, the transmission rod (450) can rotate reciprocally and drive the audible and visual alarm (320) to rotate reciprocally.
9. The high-accuracy pressure alarm of claim 8, wherein;
the switching frame (410) is connected with two guide rods (460), the mounting seat (310) is provided with through holes matched with the guide rods (460), the guide rods (460) are sleeved with springs (461), and two ends of each spring (461) are respectively connected with the mounting seat (310) and the switching frame (410).
10. The high-accuracy pressure alarm of claim 9, wherein;
the mounting seat (310) is connected with a magnet (470), and when the switching frame (410) is close to the magnet (470), the magnet (470) adsorbs the switching frame (410).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410238867.4A CN117823620B (en) | 2024-03-04 | 2024-03-04 | High-precision pressure alarm |
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| CN202410238867.4A CN117823620B (en) | 2024-03-04 | 2024-03-04 | High-precision pressure alarm |
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| CN117823620B (en) | 2024-06-11 |
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