CN112228721B - Alarm device for highway toll station - Google Patents
Alarm device for highway toll station Download PDFInfo
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- CN112228721B CN112228721B CN202011482865.8A CN202011482865A CN112228721B CN 112228721 B CN112228721 B CN 112228721B CN 202011482865 A CN202011482865 A CN 202011482865A CN 112228721 B CN112228721 B CN 112228721B
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- Prior art keywords
- sliding
- rod
- fixed
- telescopic cylinder
- alarm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/74—Capstans
- B66D1/7489—Capstans having a particular use, e.g. rope ascenders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/32—Detent devices
- B66D5/34—Detent devices having latches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/027—Ceiling supports
Abstract
The invention relates to the field of highway safety equipment, in particular to an alarm device for a highway toll station, which comprises a shed frame and an alarm arranged on the shed frame, wherein a lifting mechanism is arranged on the shed frame, the alarm is arranged on the lifting mechanism, the lifting mechanism is used for driving the alarm to ascend or descend, an anti-falling mechanism and a speed limiting mechanism are arranged on the shed frame, the lifting mechanism is respectively in transmission connection with the anti-falling mechanism and the speed limiting mechanism, the anti-falling mechanism is used for preventing the alarm from suddenly falling off in the ascending or descending process, and the speed limiting mechanism is used for limiting the moving speed of the alarm in the ascending or descending process. This kind of alarm device for highway toll station realizes falling the alarm from the rack, need not artifical climbing to the rack on, also need not to utilize lifting means to promote the workman to reduce intensity of labour, the maintenance is maintained to the alarm to the convenience, improves the security moreover, also can not be influential to the traffic flow.
Description
Technical Field
The invention relates to the field of highway safety equipment, in particular to an alarm device for a highway toll station.
Background
Vehicles can pass through the high-speed toll station when entering or leaving the high speed, so that the safety protection of the high-speed toll station is very important. The existing alarm for improving the safety of the high-speed toll station is usually arranged on a shed frame of the high-speed toll station so as to find out dangerous conditions and send out an alarm in time. However, the alarm is installed at a high position, and when the alarm is maintained and repaired, a worker needs to climb onto a shed frame, which wastes time and labor, or a lifting device is used to lift a maintenance worker to the alarm, but the alarm is not convenient to maintain and repair due to the fact that vehicles at the high-speed toll station run over, which causes high danger and consumes too long time, and traffic jam is avoided, and the operation danger is high.
Disclosure of Invention
The invention aims to provide an alarm device for an expressway toll station, which solves the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: the alarm device for the highway toll station comprises a shed frame and an alarm arranged on the shed frame, wherein a lifting mechanism is arranged on the shed frame, the alarm is arranged on the lifting mechanism, the lifting mechanism is used for driving the alarm to ascend or descend, an anti-falling mechanism and a speed limiting mechanism are arranged on the shed frame, the lifting mechanism is in transmission connection with the anti-falling mechanism and the speed limiting mechanism respectively, the anti-falling mechanism is used for preventing the alarm from suddenly falling off in ascending or descending, and the speed limiting mechanism is used for limiting the moving speed of the alarm in the ascending or descending process.
Preferably, the lifting mechanism comprises a motor and a winding wheel, the motor is fixed on the upper surface of the shed frame, the winding wheel is connected to the upper surface of the shed frame in a rotating mode through a fixed shaft, the motor is in transmission connection with the winding wheel, a pull rope is wound on the winding wheel, one end of the pull rope is fixedly connected to the winding wheel, the other end of the pull rope is fixedly connected with the lifting seat, the alarm is fixed on the lifting seat, and the lifting seat is in transmission connection with the anti-falling mechanism and the speed limiting mechanism respectively.
Preferably, the slot has been seted up on the lateral wall of lift seat orientation rack, has seted up on the rack can with the corresponding ladder groove of slot, the inside in ladder groove is provided with two and inserted bars of electromagnetism board, inserted bar sliding connection is in the ladder inslot, and the outside one end in the directional ladder groove of inserted bar is the wedge form, and the wedge face is downward, the tip of the wedge form of inserted bar can peg graft in the slot.
Preferably, the second electromagnetic plate is fixed at one end, far away from the inserting rod, inside the stepped groove, the end, pointing to the inside of the stepped groove, of the inserting rod is fixed with a convex ring, the convex ring can be in abutting-buckling contact with the stepped surface of the stepped groove, the second electromagnetic plate is connected with the inserting rod through a third spring, the inserting rod is made of a magnetic material, and the second electromagnetic plate can generate electromagnetic attraction to the inserting rod.
Preferably, the anti-falling mechanism comprises a sliding block, a third sliding barrel is fixed on the outer side wall of the sliding block, a first electromagnetic plate and a pin rod are arranged inside the third sliding barrel, the first electromagnetic plate is fixed at one end, away from an opening at the lower end of the third sliding barrel, the pin rod is connected to the third sliding barrel in a sliding mode, the first electromagnetic plate is connected with the pin rod through a fifth spring, the pin rod is made of a magnetic material, and the first electromagnetic plate can generate electromagnetic attraction force on the pin rod.
Preferably, anti-drop mechanism still includes two supports, two the support is fixed on the upper surface of rack, and two the support is fixed respectively at the both ends of slide bar one, and slider sliding connection is on slide bar one, and the slider is connected with the support through spring four, and a plurality of recesses have been seted up along the length direction of slide bar one on the slide bar one, and the lateral wall plug-in connection that the pin pole can run through the slider is in the recess that corresponds, and the dead axle rotates on the upper surface of rack to be connected with the wire wheel, and the wire takes turns to the winding and has been connected with the steel cable, and the both ends difference fixed connection slider and the seat that goes up and down.
Preferably, the speed limiting mechanism includes a telescopic cylinder, the both ends of the telescopic cylinder are respectively fixedly connected with the canopy frame and the lifting seat, a key switch is fixed on the inner side wall of one end of the telescopic cylinder close to the canopy frame, the key switch is electrically connected with the electromagnetic plate in a series connection mode, a push rod penetrates through the side wall of one end of the telescopic cylinder close to the canopy frame, the push rod can slide on the side wall of the telescopic cylinder, one end of the push rod, which is located inside the telescopic cylinder, can be abutted and buckled with the key switch, and one end of the push rod, which is located outside the telescopic cylinder, is fixed with.
Preferably, be fixed with the sliding sleeve on the inside roof of one end that the telescopic cylinder is close to the rack, the vertical direction setting of sliding sleeve, and the inside sliding connection of sliding sleeve has slide bar two, the upper end of slide bar two is connected with the inside roof of one end that the telescopic cylinder is close to the rack through spring six, the lower extreme of slide bar two is fixed with the bulb, the annular has been seted up on the periphery wall of ejector pin, the cross section of annular and the sphere looks adaptation of bulb, and the bulb can peg graft in the annular.
Preferably, an air inlet is formed in the side wall of one end, close to the shed frame, of the telescopic cylinder, a first sliding cylinder corresponding to the air inlet is fixed on the inner wall of the telescopic cylinder, a first sealing plunger is connected to the inside of the first sliding cylinder in a sliding mode and can block the air inlet, the first sealing plunger is connected with one end, far away from the air inlet, of the first sliding cylinder through a first spring, a through groove and an air hole are formed in the side wall of the first sliding cylinder, a first shifting rod is connected to the through groove in a sliding mode, the first shifting rod is fixedly connected to the first sealing plunger, and the first shifting rod can be in buckling contact.
Preferably, the side wall of one end, close to the shed frame, of the telescopic cylinder is further provided with a gas outlet, a second sliding cylinder corresponding to the gas outlet is fixed on the outer wall of the telescopic cylinder, a second sealing plunger is connected to the inside of the second sliding cylinder in a sliding manner and can seal the second sliding cylinder, the second sealing plunger is connected with one end, far away from the opening at the left end of the second sliding cylinder, in the second sliding cylinder through a second spring, and the side wall of the second sliding cylinder is provided with a gas hole.
Compared with the prior art, the invention has the beneficial effects that:
according to the alarm device, the alarm device is lowered from the shed frame through the lifting mechanism, manual climbing to the shed frame is not needed, and lifting equipment is not needed to lift workers, so that the labor intensity is reduced, the alarm device is convenient to maintain, the safety is improved, and traffic flow is not influenced;
according to the invention, the speed limiting mechanism limits the ascending or descending speed of the lifting seat, so that the safety of the lifting seat in the ascending or descending process is improved, the falling-off prevention mechanism prevents the lifting seat from falling off suddenly in the ascending or descending process, and the safety of the maintenance of the alarm is improved.
Drawings
FIG. 1 is a first schematic view of an assembly structure according to the present invention;
FIG. 2 is a second schematic view of the final assembly structure of the present invention;
FIG. 3 is a schematic cross-sectional view taken at A in FIG. 1;
FIG. 4 is a schematic cross-sectional view of a slider shaft according to the present invention;
FIG. 5 is a schematic cross-sectional view of FIG. 1 at B;
FIG. 6 is a schematic view of the structure of the key switch and the ejector rod of the present invention;
fig. 7 is an enlarged schematic view of the structure at C in fig. 5.
In the figure: 1. a shed frame; 2. a lifting seat; 3. an alarm; 4. a motor; 5. a winding wheel; 6. pulling a rope; 7. a support; 8. a first sliding rod; 9. a slider; 10. a fourth spring; 11. a third sliding cylinder; 12. a wire guide wheel; 13. a wire rope; 14. a telescopic cylinder; 15. a groove; 16. a first electromagnetic plate; 17. a fifth spring; 18. a pin rod; 19. a stepped groove; 20. a second electromagnetic plate; 21. a third spring; 22. inserting a rod; 23. a slot; 24. a key switch; 25. a top rod; 26. pressing a plate; 27. a second deflector rod; 28. an air inlet; 29. a first sliding cylinder; 30. a first spring; 31. a first sealing plunger; 32. a through groove; 33. a first deflector rod; 34. an air outlet; 35. a second sliding cylinder; 36. a second spring; 37. a second sealing plunger; 38. a sliding sleeve; 39. a second sliding rod; 40. a sixth spring; 41. a ball head; 42. and a ring groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a highway alarm device for toll station, including rack 1 and alarm 3 of setting on rack 1, be provided with elevating system on rack 1, alarm 3 sets up on elevating system, and elevating system is used for driving alarm 3 and rises or descend, set up anti-drop mechanism and speed limiting mechanism on rack 1, elevating system is connected with anti-drop mechanism and speed limiting mechanism transmission respectively, anti-drop mechanism is used for preventing alarm 3 from dropping suddenly rising or descending, speed limiting mechanism is used for limiting the alarm at the removal rate of rising or descending in-process.
In this embodiment, as shown in fig. 1 and fig. 2, the lifting mechanism includes a motor 4 and a winding wheel 5, the motor 4 is fixed on the upper surface of the canopy frame 1, the winding wheel 5 is connected on the upper surface of the canopy frame 1 in a fixed-axis rotation manner, the motor 4 is connected with the winding wheel 5 in a transmission manner, a pull rope 6 is wound on the winding wheel 5, one end of the pull rope 6 is fixedly connected to the winding wheel 5, the other end of the pull rope 6 is fixedly connected to the lifting seat 2, the alarm 3 is fixed on the lifting seat 2, and the lifting seat 2 is respectively connected with the anti-falling mechanism and the speed limiting mechanism in a transmission manner.
In this embodiment, as shown in fig. 1 and 3, a slot 23 is formed on a side wall of the lifting seat 2 facing the shelf 1, a stepped groove 19 corresponding to the slot 23 is formed on the shelf 1, a second electromagnetic plate 20 and an insertion rod 22 are arranged inside the stepped groove 19, the insertion rod 22 is slidably connected in the stepped groove 19, one end of the insertion rod 22 facing the outside of the stepped groove 19 is in a wedge shape, the wedge surface faces downward, and a wedge-shaped end of the insertion rod 22 can be inserted into the slot 23.
In this embodiment, as shown in fig. 3, the second electromagnetic plate 20 is fixed at an end of the stepped groove 19 far away from the insertion rod 22, a protruding ring is fixed at an end of the insertion rod 22 pointing to the inside of the stepped groove 19, and the protruding ring can be in abutting contact with the stepped surface of the stepped groove 19, the second electromagnetic plate 20 is connected with the insertion rod 22 through a third spring 21, the insertion rod 22 is made of a magnetic material, and the second electromagnetic plate 20 can generate an electromagnetic attraction force on the insertion rod 22.
In this embodiment, as shown in fig. 1, 2, and 4, the anti-falling mechanism includes a slider 9, a third sliding barrel 11 is fixed on an outer side wall of the slider 9, a first electromagnetic plate 16 and a pin 18 are disposed inside the third sliding barrel 11, the first electromagnetic plate 16 is fixed at an end of the third sliding barrel 11 away from an opening of the lower end 11 of the third sliding barrel, the pin 18 is slidably connected inside the third sliding barrel 11, the first electromagnetic plate 16 is connected with the pin 18 through a fifth spring 17, the pin 18 is made of a magnetic material, and the first electromagnetic plate 16 can generate an electromagnetic attraction force on the pin 18.
In this embodiment, as shown in fig. 1 and 2, the anti-falling mechanism further includes two brackets 7, the two brackets 7 are fixed on the upper surface of the canopy frame 1, the two brackets 7 are respectively fixed at two ends of the first sliding rod 8, the sliding block 9 is slidably connected to the first sliding rod 8, the sliding block 9 is connected to the brackets 7 through the fourth spring 10, a plurality of grooves 15 are formed in the first sliding rod 8 along the length direction of the first sliding rod 8, the pin 18 can penetrate through the side wall of the sliding block 9 and is inserted into the corresponding groove 15, the guide wheel 12 is rotatably connected to the upper surface of the canopy frame 1 in a fixed-axis manner, the steel cable 13 is wound on the guide wheel 12, and two ends of the steel cable 13 are respectively and fixedly connected to the sliding block 9 and the.
In this embodiment, as shown in fig. 1, fig. 2, and fig. 5, the speed limiting mechanism includes a telescopic tube 14, two ends of the telescopic tube 14 are respectively and fixedly connected to the canopy frame 1 and the lifting seat 2, a key switch 24 is fixed on an inner side wall of one end of the telescopic tube 14 close to the canopy frame 1, the key switch 24 is electrically connected to the first electromagnetic plate 16 in series, a push rod 25 penetrates through a side wall of one end of the telescopic tube 14 close to the canopy frame 1, the push rod 25 can slide on the side wall of the telescopic tube 14, one end of the push rod 25 located inside the telescopic tube 14 can be in abutting contact with the key switch 24, and one end of the push rod 25 located outside the telescopic tube 14 is fixed with a pressing plate 26.
In this embodiment, as shown in fig. 5, 6 and 7, a sliding sleeve 38 is fixed on the inner top wall of one end of the telescopic cylinder 14 close to the canopy frame 1, the sliding sleeve 38 is arranged in the vertical direction, a sliding rod II 39 is slidably connected inside the sliding sleeve 38, the upper end of the sliding rod II 39 is connected with the inner top wall of one end of the telescopic cylinder 14 close to the canopy frame 1 through a spring six 40, a ball head 41 is fixed at the lower end of the sliding rod II 39, a ring groove 42 is formed in the outer peripheral wall of the top rod 25, the cross section of the ring groove 42 is matched with the spherical surface of the ball head 41, and the ball head 41 can be.
In this embodiment, as shown in fig. 5 and 6, an air inlet 28 is formed in a side wall of one end of the telescopic cylinder 14 close to the canopy frame 1, a first sliding cylinder 29 corresponding to the air inlet 28 is fixed on an inner wall of the telescopic cylinder 14, a first sealing plunger 31 is slidably connected inside the first sliding cylinder 29, the first sealing plunger 31 can seal the air inlet 28, the first sealing plunger 31 is connected with one end of the first sliding cylinder 29 far from the air inlet 28 through a first spring 30, a through groove 32 and an air hole are formed in a side wall of the first sliding cylinder 29, a first shift lever 33 is slidably connected in the through groove 32, the first shift lever 33 is fixedly connected to the first sealing plunger 31, and the first shift lever 33 can be in abutting contact with a second shift lever 27 fixed on the.
In this embodiment, as shown in fig. 5 and 6, a gas outlet 34 is further formed in a side wall of one end of the telescopic cylinder 14 close to the canopy frame 1, a second sliding cylinder 35 corresponding to the gas outlet 34 is fixed on an outer wall of the telescopic cylinder 14, a second sealing plunger 37 is slidably connected inside the second sliding cylinder 35, the second sliding cylinder 35 can be plugged by the second sealing plunger 37, the second sealing plunger 37 is connected with one end, far away from an opening at the left end of the second sliding cylinder 35, in the second sliding cylinder 35 through a second spring 36, and a gas hole is formed in a side wall of the second sliding cylinder 35.
The use method and the advantages of the invention are as follows: when the alarm device for the highway toll station is used, the working process is as follows:
the method comprises the following steps: as shown in fig. 1, 3, 5 and 7, in an initial state, the ejector rod 25 is in abutting contact with the key switch 24, at this time, the key switch 24 is in a communication state, the ball 41 is located in the annular groove 42, the ejector rod 25 can be always in abutting contact with the key switch 24 through the annular groove 42, the pin rod 18 is inserted into the corresponding groove 15 on the sliding rod one 8, the slot 23 corresponds to the stepped groove 19, and the wedge-shaped end of the insertion rod 22 is inserted into the slot 23;
when the alarm needs to be dropped for maintenance and repair, the motor 4, the first electromagnetic plate 16 and the second electromagnetic plate 20 are electrified, the first electromagnetic plate 16 generates electromagnetic attraction on the pin rod 18 after being electrified, so that the pin rod 18 moves upwards to be away from the groove 15 and compresses the fifth spring 17 at the same time, the fifth spring 17 obtains restoring force, the second electromagnetic plate generates electromagnetic attraction on the plug rod 22 after being electrified, so that the plug rod 22 is away from the plug slot 23 and compresses the third spring 21 at the same time, the third spring 21 obtains restoring force, and the limitation of the anti-falling mechanism on the lifting seat 2 is removed;
the motor 4 is electrified to work and then drives the winding wheel 5 to rotate, so that the winding wheel 5 can pay off a pull rope 6, the lifting seat 2 can drive the alarm 3 to move downwards under the action of the gravity of the lifting seat 2 and the alarm 3, the alarm 3 can be lowered from the shed frame 1 without manually climbing onto the shed frame 1 or lifting workers by using lifting equipment, the labor intensity is reduced, the alarm 3 is convenient to maintain, the safety is improved, the traffic flow cannot be influenced, and the motor 4, the first electromagnetic plate 16 and the second electromagnetic plate 20 are powered off after the alarm 3 is lowered;
after the maintenance and repair of the alarm 3 are finished, the motor 4, the first electromagnetic plate 16 and the second electromagnetic plate 20 are electrified again, so that the motor 4 drives the winding wheel 5 to rotate reversely, thereby leading the winding wheel 5 to rotate reversely and winding the pull rope 6, leading the lifting seat 2 to ascend to the shed frame 1, and the slot 23 on the lifting seat 2 corresponds to the stepped slot 19 and powers off the motor 4, the first electromagnetic plate 16 and the second electromagnetic plate 20, so that the second electromagnetic plate 20 does not generate electromagnetic attraction, no electromagnetic attraction is generated on the inserted link 22, and under the action of the restoring force of the spring III 21, the wedge-shaped end of the inserted link 22 is inserted into the slot 23, so that the inserted link 22 has supporting force effect on the lifting seat 2, thereby reducing the pulling force of the lifting seat 2 and the alarm 3 on the pull rope 6, thereby reducing the load on the pull rope 6, prolonging the service life of the pull rope 6 and improving the safety of the lifting seat 2;
step two: as mentioned in the first step, when the lifting seat 2 moves down, the lifting seat 2 applies a pulling force to the telescopic cylinder 14, and the telescopic cylinder 14 is extended, so that the volume inside the telescopic cylinder 14 becomes larger, and a suction force is generated, external air applies a pressure to the first sealing plunger 31 through the air inlet 28, so that the first sealing plunger 31 compresses the first spring 30, so that the first spring 30 obtains a restoring force, and the first sealing plunger 31 is far away from the air inlet 28, so that the external air enters the telescopic cylinder 14 through the air holes on the air inlet 28 and the first sliding cylinder 29, and as the first sealing plunger 31 does not seal the air inlet 28, a certain suction force needs to be generated inside the telescopic cylinder 14, and the reaction force of the suction force to the lifting seat 2 can be known according to the newton's third law, so that the damping of the lifting seat 2 is increased, so that the descending of the lifting seat 2 is limited, and the descending speed of the lifting seat 2 is prevented from, dangerous accidents are caused, the instantaneous load on the pull rope 6 is reduced, and the service life of the pull rope 6 is prolonged;
when the lifting seat 2 moves upwards, the lifting seat 2 applies pressure to the telescopic cylinder 14, and the telescopic cylinder 14 is shortened, so that the volume inside the telescopic cylinder 14 is reduced, air inside the telescopic cylinder 14 applies pressure to the sealing plunger II 37 through the air outlet 34, so that the sealing plunger II 37 compresses the spring II 36, the spring II 36 obtains a restoring force, the sealing plunger II 37 is far away from the air outlet 34, so that the air inside the telescopic cylinder 14 is exhausted out of the telescopic cylinder 14 through the air outlet 34 and the air holes in the sliding cylinder II 35, the reaction force of the pressure generated inside the telescopic cylinder on the lifting seat 2 increases the damping of the lifting seat 2, so that the lifting of the lifting seat 2 is limited, the phenomenon that the lifting seat 2 is not easily and rapidly stopped due to the inertia generated when the uppermost end needs to be stopped due to the large lifting and great descending speed of the lifting seat 2 is avoided, and dangerous accidents are avoided, the telescopic cylinder 14 can guide the lifting and descending of the lifting seat 2, so that the lifting seat 2 is prevented from being inclined in the lifting and descending processes;
when the telescopic cylinder 14 is not telescopic, the first sealing plunger 31 seals the air inlet 28 and the second sealing plunger 37 seals the air outlet 34 under the action of restoring forces of the first spring 30 and the second spring 36, so that external impurities are prevented from entering the telescopic cylinder 14;
step three: as shown in the first step and the second step, after the first electromagnetic plate 16 is powered off, the first electromagnetic plate 16 does not generate electromagnetic attraction to the pin 18, so that the pin 18 is inserted into the corresponding groove 15 under the action of the restoring force of the fifth spring 17, the slider 9 cannot slide on the first sliding rod 8, the slider 9 plays a role in preventing falling off of the lifting seat 2 through the steel cable 13, when the lifting seat 2 is lifted or lowered, the pull rope 6 is suddenly broken, the lifting seat 2 is rapidly moved downwards under the action of self-weight, so that a larger pulling force is generated on the telescopic cylinder 14, and a larger suction force is generated in the telescopic cylinder 14, as shown in fig. 6, the suction force enables the first sealing plunger 31 to drive the first shift lever 33 to approach the second shift lever 27, when the first shift lever 33 is in abutting contact with the second shift lever 27, and the second shift lever 27 drives the ejector rod 25 to be far away from and not in contact with the key switch 24, so that the key switch 24 is in a, and then the first electromagnetic plate 16 is powered off, and electromagnetic suction force is not generated on the pin rod 18, so that the pin rod 18 is inserted into the groove 15 under the action of restoring force of the fifth spring 17, and the movable sliding block 9 cannot slide on the first sliding rod 8, so that the sliding block 9 pulls the lifting seat 2 through the steel cable 13 to stop falling, and therefore the lifting seat 2 is prevented from suddenly falling off in the ascending or descending process, the safety of maintenance of the lifting seat 2 is improved, after an accident is relieved, the pressing plate 26 is pressed by a hand, the ejector rod 25 is pushed to be in abutting contact with the key switch 24, the key switch 24 is communicated again, the second sliding rod 39 drives the ball 41 to be located in the annular groove 42 under the action of the sixth spring 40, and the ejector rod 25 can be in abutting contact with the key switch 24 all the time through the annular groove 42.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an alarm device for highway toll station, includes rack (1) and alarm (3) of setting on rack (1), its characterized in that: the alarm device is characterized in that a lifting mechanism is arranged on the canopy frame (1), the alarm device (3) is arranged on the lifting mechanism, the lifting mechanism is used for driving the alarm device (3) to ascend or descend, an anti-falling mechanism and a speed limiting mechanism are arranged on the canopy frame (1), the lifting mechanism is in transmission connection with the anti-falling mechanism and the speed limiting mechanism respectively, the anti-falling mechanism is used for preventing the alarm device (3) from suddenly falling off in ascending or descending, and the speed limiting mechanism is used for limiting the moving speed of the alarm device in the ascending or descending process; the lifting mechanism comprises a motor (4) and a winding wheel (5), the motor (4) is fixed on the upper surface of the shed frame (1), the winding wheel (5) is fixedly connected to the upper surface of the shed frame (1) in a rotating mode, the motor (4) is in transmission connection with the winding wheel (5), a pull rope (6) is wound on the winding wheel (5), one end of the pull rope (6) is fixedly connected to the winding wheel (5), the other end of the pull rope (6) is fixedly connected with a lifting seat (2), the alarm (3) is fixed on the lifting seat (2), and the lifting seat (2) is in transmission connection with an anti-falling mechanism and a speed limiting mechanism respectively; the anti-falling mechanism comprises a sliding block (9), a third sliding barrel (11) is fixed on the outer side wall of the sliding block (9), a first electromagnetic plate (16) and a pin rod (18) are arranged inside the third sliding barrel (11), the first electromagnetic plate (16) is fixed at one end, far away from an opening at the lower end of the third sliding barrel (11), in the third sliding barrel (11), the pin rod (18) is connected in the third sliding barrel (11) in a sliding mode, the first electromagnetic plate (16) is connected with the pin rod (18) through a fifth spring (17), the pin rod (18) is made of a magnetic material, and the first electromagnetic plate (16) can generate electromagnetic suction on the pin rod (18);
the anti-falling mechanism further comprises two supports (7), the two supports (7) are fixed on the upper surface of the shed frame (1), the two supports (7) are fixed at two ends of a first sliding rod (8) respectively, the sliding block (9) is connected to the first sliding rod (8) in a sliding mode, the sliding block (9) is connected with the supports (7) through a fourth spring (10), a plurality of grooves (15) are formed in the first sliding rod (8) in the length direction of the first sliding rod (8), the pin rod (18) can penetrate through the side wall of the sliding block (9) and can be inserted into the corresponding grooves (15), a guide wire wheel (12) is rotatably connected to the upper surface of the shed frame (1) in a fixed shaft mode, a steel cable (13) is wound on the guide wire wheel (12), and two ends of the steel cable (13) are fixedly connected with the sliding block (9) and the lifting seat (2) respectively.
2. The warning device for the expressway toll station according to claim 1, wherein: slot (23) have been seted up on going up and down seat (2) on the lateral wall towards rack (1), set up on rack (1) can with slot (23) corresponding ladder groove (19), the inside in ladder groove (19) is provided with electromagnetic plate two (20) and inserted bar (22), inserted bar (22) sliding connection is in ladder groove (19), and the outside one end in the directional ladder groove (19) of inserted bar (22) is the wedge form, and the wedge face is downward, the tip of the wedge form of inserted bar (22) can be pegged graft in slot (23).
3. The warning device for the expressway toll station according to claim 2, wherein: the one end of inserted bar (22) is kept away from in ladder groove (19) inside to electromagnetic plate two (20), the inside one end in the directional ladder groove (19) of inserted bar (22) is fixed with the bulge loop, and the bulge loop can support with the ladder face in ladder groove (19) and detain the contact, electromagnetic plate two (20) are connected with inserted bar (22) through three (21) of spring, and inserted bar (22) adopt magnetic material to make, electromagnetic plate two (20) can produce electromagnetic attraction to inserted bar (22).
4. The warning device for the expressway toll station according to claim 1, wherein: the speed limiting mechanism comprises a telescopic cylinder (14), the two ends of the telescopic cylinder (14) are fixedly connected with a shed frame (1) and a lifting seat (2) respectively, a key switch (24) is fixed on the inner side wall of one end, close to the shed frame (1), of the telescopic cylinder (14), the key switch (24) is electrically connected with a first electromagnetic plate (16) in a series connection mode, a push rod (25) penetrates through the side wall of one end, close to the shed frame (1), of the telescopic cylinder (14), the push rod (25) can slide on the side wall of the telescopic cylinder (14), one end, located inside the telescopic cylinder (14), of the push rod (25) can be in abutting-buckling contact with the key switch (24), and a pressing plate (26) is fixed at one end, located outside the telescopic cylinder (14), of the push rod (25).
5. The warning device for the expressway toll station according to claim 4, wherein: telescopic cylinder (14) are fixed with sliding sleeve (38) on being close to the inside roof of one end of rack (1), sliding sleeve (38) vertical direction sets up, and the inside sliding connection of sliding sleeve (38) has slide bar two (39), the upper end of slide bar two (39) is connected through spring six (40) and telescopic cylinder (14) the inside roof of one end that is close to rack (1), the lower extreme of slide bar two (39) is fixed with bulb (41), annular (42) have been seted up on the peripheral wall of ejector pin (25), the cross section of annular (42) and the sphere looks adaptation of bulb (41), and bulb (41) can peg graft in annular (42).
6. The warning device for the expressway toll station according to claim 4, wherein: the greenhouse frame is characterized in that an air inlet (28) is formed in the side wall of one end, close to the greenhouse frame (1), of the telescopic cylinder (14), a first sliding cylinder (29) corresponding to the air inlet (28) is fixed on the inner wall of the telescopic cylinder (14), a first sealing plunger (31) is connected to the inside of the first sliding cylinder (29) in a sliding mode, the first sealing plunger (31) can seal the air inlet (28), the first sealing plunger (31) is connected with one end, far away from the air inlet (28), of the first sliding cylinder (29) through a first spring (30), a through groove (32) and an air hole are formed in the side wall of the first sliding cylinder (29), a first deflector rod (33) is connected to the through groove (32) in a sliding mode, the first deflector rod (33) is fixedly connected to the first sealing plunger (31), and the first deflector rod (33) can be in abutting-buckling contact with a second deflector rod.
7. The warning device for the expressway toll station according to claim 6, wherein: the gas outlet (34) is further formed in the side wall of one end, close to the shed frame (1), of the telescopic cylinder (14), a sliding cylinder II (35) corresponding to the gas outlet (34) is fixed to the outer wall of the telescopic cylinder (14), a sealing plunger II (37) is connected to the inside of the sliding cylinder II (35) in a sliding mode, the sliding cylinder II (35) can be plugged by the sealing plunger II (37), the sealing plunger II (37) is connected with the end, away from the left end opening of the sliding cylinder II (35), of the sliding cylinder II (35) through a spring II (36), and a gas hole is formed in the side wall of the sliding cylinder II (35).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482865.8A CN112228721B (en) | 2020-12-16 | 2020-12-16 | Alarm device for highway toll station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482865.8A CN112228721B (en) | 2020-12-16 | 2020-12-16 | Alarm device for highway toll station |
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| CN112228721A CN112228721A (en) | 2021-01-15 |
| CN112228721B true CN112228721B (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011482865.8A Active CN112228721B (en) | 2020-12-16 | 2020-12-16 | Alarm device for highway toll station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112843353B (en) * | 2021-03-05 | 2022-03-25 | 中南大学湘雅医院 | Portable intelligent stomach tube drainage device |
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| CN112228721A (en) | 2021-01-15 |
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