CN112299204A

CN112299204A - Passenger elevator device capable of automatically adjusting air exhaust intensity according to pressure

Info

Publication number: CN112299204A
Application number: CN202011116706.6A
Authority: CN
Inventors: 吴舒仪
Original assignee: Pan'an Dezong Electronic Technology Co ltd
Current assignee: Pan'an Dezong Electronic Technology Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-02-02

Abstract

The invention relates to the field related to sensors, and discloses a passenger elevator device capable of automatically adjusting air exhaust intensity according to pressure, which comprises a main box, wherein an elevator car is arranged in the main box, the left end of the upper end wall of the elevator car is communicated with an upward-opening vent, the right end of the upper end wall of the elevator car is communicated with an upward-opening escape channel, and the right end wall of the vent is fixedly connected with an exhaust fan box. The safety of personnel is ensured.

Description

Passenger elevator device capable of automatically adjusting air exhaust intensity according to pressure

Technical Field

The invention relates to the field related to sensors, in particular to a passenger elevator device capable of automatically adjusting air exhaust intensity according to pressure.

Background

Ventilation is all taken a breath through the exhaust fan mostly in the present elevator car, in order to guarantee the circulation of air in the car, but the intensity of airing exhaust of most elevators all is the definite value, automatic start after the people advances the elevator promptly, automatic shutdown again after the people walks, thereby can't reach better ventilation effect because of the intensity of airing exhaust is not high when the number is more, will cause the waste of certain electric power again when the number is less simultaneously, and most elevators at present do not set up escape channel, thereby can't escape when taking place the accident in the car.

Disclosure of Invention

The invention aims to provide a passenger elevator device capable of automatically adjusting the air exhaust intensity according to the pressure, which can overcome the defects in the prior art, thereby improving the practicability of equipment.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a passenger elevator device capable of automatically adjusting air exhaust intensity according to pressure, which comprises a main body box, wherein an elevator car is arranged in the main body box, the left end of the upper end wall of the elevator car is communicated with an upward opening vent, the right end of the upper end wall of the elevator car is communicated with an upward opening escape channel, the right end wall of the vent is fixedly connected with an exhaust fan box, a transmission belt cavity extending rightwards into the main body box is arranged in the exhaust fan box, a speed adjusting cavity positioned at the right side of the vent is arranged at the lower side of the transmission belt cavity, a speed adjusting slider cavity positioned at the upper side of the elevator car is communicated with the lower end wall of the speed adjusting cavity, a conical friction wheel cavity is communicated with the right end wall of the speed adjusting cavity, a gear cavity positioned at the right side of the transmission belt cavity is arranged at the upper right side of the conical friction wheel cavity, and a fan main shaft extending downwards into the vent, end face fixedly connected with is located under the exhaust fan main shaft exhaust fan in the vent, fixedly connected with is located in the vent the filter screen of exhaust fan downside, the conveyer belt chamber is connected with downward extension in the end wall normal running fit down the speed governing intracavity and upwards extend to the speed governing integral key shaft of conveyer belt intracavity, the speed governing integral key shaft with power fit is connected with between the exhaust fan main shaft and is located the drive belt of conveyer belt intracavity, speed governing slider intracavity sliding fit is connected with the speed governing slider, speed governing integral key shaft internal spline fit is connected with downwardly extending and runs through the speed governing chamber extremely speed governing slider intracavity and with the speed governing main shaft that speed governing slider normal running fit connects.

On the basis of the technical scheme, the speed-regulating main shaft is fixedly connected with a friction wheel, a speed-regulating spring is fixedly connected between the lower end surface of the speed-regulating slide block and the lower end wall of the speed-regulating slide block cavity, the right side of the speed-regulating slide block cavity is provided with a sliding door cavity which is positioned at the lower side of the conical friction wheel cavity and extends rightwards to be communicated with the left end wall of the escape passage, the upper side of the sliding door cavity is provided with a motor which is positioned at the right side of the gear cavity and is fixedly connected with the main body box, the right side of the motor is provided with a switching friction wheel cavity, the right side of the switching friction wheel cavity is provided with a line wheel cavity positioned at the left side of the escape passage, the right end wall of the switching friction wheel cavity is communicated with a switching slide block cavity positioned at the lower side of the line, fixedly connected with triggers the magnetic path in the pressure plate, the pressure plate with the powerful spring that a plurality of evenly distributed of fixedly connected with set up between the end wall under the elevator car, elevator car right side end wall intercommunication is equipped with and is located the pull ring chamber of pressure plate upside, the terminal intercommunication of elevator car right side end wall downside is equipped with and is located the magnetism slider chamber of pressure plate downside, magnetism slider chamber upper end wall intercommunication is equipped with and is located the little stopper chamber of pressure plate downside.

On the basis of the technical scheme, the upper end wall of the conical friction wheel cavity is connected with a conical friction wheel shaft which upwards extends into the gear cavity and downwards extends into the conical friction wheel cavity, the conical friction wheel cavity which is concerned is internally provided with a conical friction wheel which is fixedly connected with the conical friction wheel shaft and is abutted against the conical friction wheel, the gear cavity is internally provided with a straight gear which is fixedly connected with the conical friction wheel shaft, the right end wall of the gear cavity is connected with an exhaust shaft which leftwards extends into the gear cavity and rightwards extends into the switching friction wheel cavity and is positioned at the upper side of the motor, the left side of the straight gear is connected with a bevel gear which is fixedly connected with the exhaust shaft in a power fit manner, the switching friction wheel cavity is internally provided with an exhaust friction wheel which is fixedly connected with the exhaust shaft, the right end wall of the switching friction wheel cavity is communicated with a line shaft which leftwards extends into the switching friction wheel cavity and rightwards extends, the utility model discloses a switch slider, including line wheel, line wheel intracavity, switching slider intracavity, the line wheel intracavity be equipped with line wheel axle fixed connection's line wheel, the right-hand member face fixedly connected with of motor extends to right switch the motor integral key shaft of friction wheel intracavity, switching slider intracavity sliding fit is connected with the switching slider, switching slider right-hand member face with fixedly connected with switches the slider spring between the switching slider chamber right-hand member wall.

On the basis of the technical scheme, the internal spline of the motor spline shaft is connected with a switching main shaft which extends rightwards to penetrate through the switching friction wheel cavity into the switching slide block cavity and is connected with the switching slide block in a rotating fit manner, the switching main shaft is fixedly connected with a main friction wheel which is abutted against the air exhaust friction wheel and can be abutted against the wire wheel friction wheel, the sliding door cavity is connected with a channel sliding door in a sliding fit manner, a sliding door spring is fixedly connected between the left end surface of the channel sliding door and the left end wall of the sliding door cavity, a channel limiting groove with an upward opening is arranged in the channel sliding door, a large limiting block which can correspond to the channel limiting groove is connected in the large limiting block cavity in a sliding fit manner, a large limiting block spring is fixedly connected between the upper end surface of the large limiting block and the upper end wall of the large limiting block cavity, the pull ring slider left end face fixedly connected with pull ring, pull ring slider right-hand member face with fixedly connected with pull ring slider spring between the pull ring chamber right-hand member wall, magnetic slider intracavity sliding fit be connected with can with trigger the magnetic slide that the magnetic path corresponds, be equipped with the ascending switching spacing groove of opening in the magnetic slide, little stopper intracavity sliding fit be connected with can with switch the little stopper that the spacing groove corresponds, little stopper up end with the little stopper spring of fixedly connected with between the little stopper chamber upper end wall.

On the basis of the technical scheme, a speed regulation pull rope is fixedly connected between the lower end surface of the speed regulation slide block and the lower end surface of the pressure plate, a slide door pull rope is fixedly connected between the left end surface of the channel slide door and the wire wheel, a switching pull rope is fixedly connected between the right end surface of the switching slide block and the right end surface of the magnetic slide block, a large limit block pull rope is fixedly connected between the upper end surface of the large limit block and the right end surface of the pull ring slide block, a small limit block pull rope positioned on the lower side of the large limit block pull rope is fixedly connected between the right end surface of the pull ring slide block and the upper end surface of the small limit block, the resultant force of the thrust of the strong spring is greater than the thrust of the speed regulation spring, the attraction force between the trigger magnetic block and the magnetic slide, the thrust of the large limiting block spring is greater than that of the pull ring slider spring.

The invention has the beneficial effects that: this device utilizes the pressure plate to respond to human gravity in elevator car in real time, the variable speed effect of cooperation toper friction pulley and friction pulley simultaneously, thereby but the intensity of airing exhaust of automatically regulated exhaust fan, the number is more the intensity of airing exhaust is higher more, thereby air quality in the elevator car has been guaranteed, and can real-time detection elevator break down and produce the scram through triggering the magnetic path, the passageway sliding door that the while cooperation can be opened certainly, thereby personnel in the car of being convenient for can break away from inside the car smoothly when meeting emergency, personnel's safety has been guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view showing the overall structure of an elevator apparatus for passenger capable of automatically adjusting the intensity of discharged air according to the pressure according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

fig. 4 is an enlarged schematic view of the structure at C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The passenger elevator device capable of automatically adjusting air exhaust intensity according to pressure, which is described in conjunction with the attached drawings 1-4, comprises a main body box 10, an elevator car 11 is arranged in the main body box 10, a vent 13 with an upward opening is communicated with the left end of the upper end wall of the elevator car 11, an escape passage 25 with an upward opening is communicated with the right end of the upper end wall of the elevator car 11, an exhaust fan box 18 is fixedly connected with the right end wall of the vent 13, a transmission belt cavity 20 extending rightwards into the main body box 10 is arranged in the exhaust fan box 18, a speed adjusting cavity 29 positioned on the right side of the vent 13 is arranged on the lower side of the transmission belt cavity 20, a speed adjusting slider cavity 31 positioned on the upper side of the elevator car 11 is communicated with the lower end wall of the speed adjusting cavity 29, a conical friction wheel cavity 41 is communicated with the right end wall of the speed adjusting cavity 29, a gear cavity 43 positioned on the right side of, the lower end wall of the transmission belt cavity 20 is connected with an exhaust fan spindle 19 which extends downwards into the ventilation opening 13 and extends upwards into the transmission belt cavity 20 in a rotating fit manner, the lower end surface of the exhaust fan main shaft 19 is fixedly connected with an exhaust fan 12 positioned in the ventilation opening 13, a filter screen 14 positioned at the lower side of the exhaust fan 12 is fixedly connected in the ventilation opening 13, a speed regulation spline shaft 38 which extends downwards into the speed regulation cavity 29 and extends upwards into the transmission belt cavity 20 is connected in a rotationally matched manner on the lower end wall of the transmission belt cavity 20, the speed-regulating spline shaft 38 and the exhaust fan spindle 19 are in power fit connection with a transmission belt 21 positioned in the transmission belt cavity 20, the speed regulation slide block 32 is connected in the speed regulation slide block cavity 31 in a sliding fit mode, and the speed regulation main shaft 28 which extends downwards to penetrate through the speed regulation cavity 29 to the speed regulation slide block cavity 31 and is connected with the speed regulation slide block 32 in a rotating fit mode is connected in the speed regulation spline shaft 38 in a spline fit mode.

In addition, in one embodiment, a friction wheel 30 is fixedly connected to the speed-regulating main shaft 28, a speed-regulating spring 33 is fixedly connected between the lower end surface of the speed-regulating slide block 32 and the lower end wall of the speed-regulating slide block cavity 31, a sliding door cavity 37 is arranged on the right side of the speed-regulating slide block cavity 31 and located on the lower side of the conical friction wheel cavity 41 and extending rightwards to be communicated with the left end wall of the escape channel 25, a motor 23 is arranged on the upper side of the sliding door cavity 37 and located on the right side of the gear cavity 43 and fixedly connected with the main body box 10, a switching friction wheel cavity 44 is arranged on the right side of the motor 23, a line wheel cavity 53 located on the left side of the escape channel 25 is arranged on the right side of the switching friction wheel cavity 44, a switching slide block cavity 47 located on the lower side of the line wheel cavity 53 is communicated with the right end wall of the switching friction wheel cavity 44, sliding fit is connected with pressure plate 15 in elevator car 11, fixedly connected with triggers magnetic path 60 in the pressure plate 15, pressure plate 15 with strong spring 16 that a plurality of evenly distributed of fixedly connected with set up between 11 end walls under the elevator car, 11 right-hand member wall intercommunication of elevator car is equipped with and is located the pull ring chamber 68 of 15 upsides of pressure plate, 11 right-hand member wall downside of elevator car end wall terminal intercommunication is equipped with and is located the magnetic slide block chamber 64 of 15 downsides of pressure plate, the upper end wall intercommunication in magnetic slide block chamber 64 is equipped with and is located the little stopper chamber 63 of 15 downsides of pressure plate.

In addition, in an embodiment, the upper end wall of the conical friction wheel cavity 41 is connected with a conical friction wheel shaft 39 which extends upwards into the gear cavity 43 and extends downwards into the conical friction wheel cavity 41 in a rotationally matched manner, a conical friction wheel 42 which is fixedly connected with the conical friction wheel shaft 39 and is abutted against the friction wheel 30 is arranged in the conical friction wheel cavity 41, a straight gear 40 which is fixedly connected with the conical friction wheel shaft 39 is arranged in the gear cavity 43, the right end wall of the gear cavity 43 is connected with an exhaust shaft 22 which extends leftwards into the gear cavity 43 and extends rightwards into the switching friction wheel cavity 44 and is positioned on the upper side of the motor 23 in a rotationally matched manner, the left side of the straight gear 40 is connected with a bevel gear 34 which is fixedly connected with the exhaust shaft 22 in a rotationally matched manner, the switching friction wheel cavity 44 is provided with an exhaust friction wheel 50 which is fixedly connected with the exhaust shaft 22, switch the right-hand member wall intercommunication of friction pulley chamber 44 and be equipped with extend left in switching friction pulley chamber 44 and extend right to the reel 52 in the reel chamber 53, the friction pulley 50 right side of airing exhaust be equipped with reel friction pulley 51 of reel 52 fixed connection, be equipped with in the reel chamber 53 with reel 54 of reel 52 fixed connection, motor 23 right-hand member face fixedly connected with extend right switch the motor integral key shaft 24 in the friction pulley chamber 44, switch slider intracavity 47 sliding fit and be connected with and switch slider 55, switch slider 55 right-hand member face with fixedly connected with switch slider spring 56 between the right-hand member wall of switch slider chamber 47.

In addition, in one embodiment, the internal spline of the motor spline shaft 24 is connected with a switching main shaft 46 which extends through the switching friction wheel cavity 44 to the switching slider cavity 47 rightwards and is connected with the switching slider 55 in a rotating fit manner, the switching main shaft 46 is fixedly connected with a main friction wheel 45 which is abutted against the exhaust friction wheel 50 and can be abutted against the wire wheel friction wheel 51, the sliding door cavity 37 is connected with a channel sliding door 26 in a sliding fit manner, a sliding door spring 36 is fixedly connected between the left end surface of the channel sliding door 26 and the left end wall of the sliding door cavity 37, a channel limiting groove 27 with an upward opening is arranged in the channel sliding door 26, a large limiting block 49 which can correspond to the channel limiting groove 27 is connected in a sliding fit manner in the large limiting block cavity 48, and a large limiting block spring 59 is fixedly connected between the upper end surface of the large limiting block 49 and the upper end wall of the large limiting block, sliding fit is connected with pull ring slider 70 in pull ring chamber 68, pull ring slider 70 left end face fixedly connected with pull ring 69, pull ring slider 70 right-hand member face with fixedly connected with pull ring slider spring 71 between the pull ring chamber 68 right-hand member wall, sliding fit is connected with in magnetism slider chamber 64 can with trigger the magnetism slider 66 that magnetic path 60 corresponds, be equipped with the ascending switching spacing groove 67 of opening in the magnetism slider 66, sliding fit is connected with in little stopper chamber 63 can with switch the little stopper 65 that spacing groove 67 corresponds, little stopper 65 up end with fixedly connected with little stopper spring 62 between the little stopper chamber 63 upper end wall.

In addition, in one embodiment, a speed regulation pull rope 17 is fixedly connected between the lower end surface of the speed regulation slider 32 and the lower end surface of the pressure plate 15, a sliding door pull rope 35 is fixedly connected between the left end surface of the channel sliding door 26 and the reel 54, a switching pull rope 57 is fixedly connected between the right end surface of the switching slider 55 and the right end surface of the magnetic slider 66, a large stopper pull rope 58 is fixedly connected between the upper end surface of the large stopper 49 and the right end surface of the pull ring slider 70, a small stopper pull rope 61 located below the large stopper pull rope 58 is fixedly connected between the right end surface of the pull ring slider 70 and the upper end surface of the small stopper 65, the resultant force of the thrust forces of the strong springs 16 is greater than the thrust force of the speed regulation springs 33, and the attractive force between the trigger magnetic block 60 and the magnetic slider 66, the thrust of the small stopper spring 62 is greater than the thrust of the tab slider spring 71, and the thrust of the large stopper spring 59 is greater than the thrust of the tab slider spring 71.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

As shown in fig. 1-4, when the device of the present invention is in an initial state, the triggering magnetic block 60 and the magnetic slider 66 are in a disengaged state, the switching limiting groove 67 and the small limiting block 65 are in a disengaged state, the large limiting block 49 and the channel sliding door 26 are in an abutting state, the large limiting block spring 59 is in a compressed state, the sliding door pull rope 35 is in a relaxed state, the sliding door spring 36 is in a relaxed state, the channel sliding door 26 and the right end wall of the escape channel 25 are in an abutting state, that is, the escape channel 25 is in a closed state, the switching pull rope 57 is in a relaxed state, and the main friction wheel 45 and the exhaust friction wheel 50 are in an abutting; sequence of mechanical actions of the whole device: when the elevator car air-exhausting and ventilating device starts to work, the motor 23 is started to drive the motor spline shaft 24 to rotate, so that the switching main shaft 46 is driven to rotate, the switching main shaft 46 drives the air exhausting shaft 22 to rotate through the air exhausting friction wheel 50, the air exhausting shaft 22 drives the straight gear 40 to rotate through the bevel gear 34, the straight gear 40 drives the conical friction wheel 42 to rotate through the conical friction wheel shaft 39, so that the speed adjusting main shaft 28 is driven to rotate, so that the speed adjusting spline shaft 38 is driven to rotate, the speed adjusting spline shaft 38 drives the exhaust fan main shaft 19 to rotate through the transmission belt 21, so that the exhaust fan 12 is driven to rotate, so that air in the elevator car 11 is continuously exhausted to the outside through the filter screen 14 and the; when the number of people in the elevator increases, the pressure plate 15 will move downwards by a corresponding distance against the thrust of the strong spring 16 under the weight of the people, so that the speed regulating pull rope 17 is in a relaxed state at the moment, the speed regulating slide block 32 drives the friction wheel 30 to move upwards through the speed regulating main shaft 28 under the thrust action of the speed regulating spring 33, so that the position at which the friction wheel 30 abuts against the tapered friction wheel 42 is changed, and the transmission ratio between the friction wheel 30 and the tapered friction wheel 42 is changed, so that the rotation speed of the conical friction wheel 42 driving the friction wheel 30 to rotate is increased, and finally the rotation speed of the exhaust fan 12 is increased, thereby quickening the air circulation in the elevator cage 11, realizing the effect of correspondingly changing the air exhaust intensity according to the pressure generated by the gravity of the human body, the air exhaust strength of the elevator car can be correspondingly changed according to the number of people, so that the air quality in the elevator is ensured; when the elevator is in failure and stops suddenly, at this time, the pressure generated by the human body due to inertia will make the pressure plate 15 overcome the thrust of the strong spring 16 and move downwards to make the trigger magnetic block 60 correspond to the magnetic slider 66 exactly, so that the magnetic slider 66 is moved leftwards by the attraction of the trigger magnetic block 60 to make the small stopper 65 correspond to the switching stopper groove 67 exactly, and at this time, the magnetic slider 66 cannot move, so that the switching pull rope 57 is in a tensioned state at this time, so that the switching slider 55 will overcome the thrust of the switching slider spring 56 and drive the main friction wheel 45 to move rightwards through the switching main shaft 46 to abut against the pulley friction wheel 51 exactly, so that the main friction wheel 45 drives the pulley friction wheel 51 to rotate, the pulley 51 drives the pulley 54 to rotate through the pulley shaft 52, so that the sliding door pull rope 35 is tensioned gradually at this time, so that the passage sliding door 26 will overcome the thrust of the sliding door spring 36 and move, therefore, the passage sliding door 26 cannot move at the moment, and the motor 23 is automatically closed at the moment, so that the escape passage 25 is in an open state at the moment, and therefore when an emergency occurs, trapped persons can conveniently escape from the interior of the elevator through the escape passage 25; when the trouble is relieved, pull ring 69 is pulled leftwards at this moment, thereby drive pull ring slider 70 and move leftwards, thereby make big stopper stay cord 58 and little stopper stay cord 61 be in taut state, thereby make little stopper 65 rebound and switch spacing groove 67 and break away from, thereby make magnetism slider 66 move rightwards to initial condition, thereby switch stay cord 57 this moment and be in state of relaxing, thereby main friction pulley 45 moves leftwards to be in the butt state with exhaust friction pulley 50, big stopper 49 rebound and the spacing groove 27 of passageway breaks away from simultaneously, thereby passageway sliding door 26 receives the thrust of sliding door spring 36 to move rightwards to get back to initial condition this moment, escape channel 25 is in the closed condition promptly.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a can be according to pressure automatically regulated passenger elevator device of intensity of airing exhaust, includes the main part case, its characterized in that: the elevator car is arranged in the main box, the left end of the upper end wall of the elevator car is communicated with a vent with an upward opening, the right end of the upper end wall of the elevator car is communicated with an escape passage with an upward opening, the right end wall of the vent is fixedly connected with an exhaust fan box, the exhaust fan box is internally provided with a transmission belt cavity extending to the right in the main box, the lower side of the transmission belt cavity is provided with a speed regulation cavity positioned on the right side of the vent, the lower end wall of the speed regulation cavity is communicated with a speed regulation slider cavity positioned on the upper side of the elevator car, the right end wall of the speed regulation cavity is communicated with a conical friction wheel cavity, the upper right side of the conical friction wheel cavity is provided with a gear cavity positioned on the right side of the transmission belt cavity, the lower end wall of the transmission belt cavity is connected with an exhaust fan spindle extending downwards into the vent and extending upwards into the transmission, fixedly connected with is located in the vent the filter screen of exhaust fan downside, drive belt cavity lower extreme wall normal running fit is connected with downwardly extending to speed governing intracavity and upwards extend to the speed governing integral key shaft of drive belt intracavity, the speed governing integral key shaft with power fit is connected with between the exhaust fan main shaft and is located the drive belt of drive belt intracavity, speed governing slider intracavity sliding fit is connected with the speed governing slider, speed governing integral key shaft internal spline fit is connected with downwardly extending and runs through the speed governing chamber extremely the speed governing slider intracavity and with the speed governing main shaft that the speed governing slider normal running fit is connected.

2. A passenger elevator apparatus capable of automatically adjusting the intensity of discharged air according to the pressure as set forth in claim 1, wherein: the speed-regulating main shaft is fixedly connected with a friction wheel, a speed-regulating spring is fixedly connected between the lower end face of the speed-regulating slide block and the lower end wall of the speed-regulating slide block cavity, the right side of the speed-regulating slide block cavity is provided with a sliding door cavity which is positioned at the lower side of the conical friction wheel cavity and extends rightwards to be communicated with the left end wall of the escape passage, the upper side of the sliding door cavity is provided with a motor which is positioned at the right side of the gear cavity and is fixedly connected with the main box, the right side of the motor is provided with a switching friction wheel cavity, the right side of the switching friction wheel cavity is provided with a wire wheel cavity positioned at the left side of the escape passage, the right end wall of the switching friction wheel cavity is communicated with a switching slide block cavity positioned at the lower side of the wire wheel cavity, the upper end wall of the sliding, the pressure plate with the powerful spring that a plurality of evenly distributed of fixedly connected with set up between the end wall under the elevator car, elevator car right side end wall intercommunication is equipped with and is located the pull ring chamber of pressure plate upside, the terminal intercommunication of elevator car right side end wall downside is equipped with and is located the magnetism slider chamber of pressure plate downside, magnetism slider chamber upper end wall intercommunication is equipped with and is located the little stopper chamber of pressure plate downside.

3. A passenger elevator apparatus capable of automatically adjusting the intensity of discharged air according to the pressure as set forth in claim 1, wherein: the upper end wall of the conical friction wheel cavity is connected with a conical friction wheel shaft which upwards extends into the gear cavity and downwards extends into the conical friction wheel cavity, the conical friction wheel cavity which is complained with the conical friction wheel shaft which is fixedly connected with the conical friction wheel shaft and is abutted against the conical friction wheel is arranged in the gear cavity, a straight gear which is fixedly connected with the conical friction wheel shaft is arranged in the gear cavity, the right end wall of the gear cavity is connected with an exhaust shaft which leftwards extends into the gear cavity and rightwards extends into the switching friction wheel cavity and is positioned at the upper side of the motor, the left side of the straight gear is connected with a bevel gear which is fixedly connected with the exhaust shaft in a power fit manner, the switching friction wheel cavity is provided with an exhaust friction wheel which is fixedly connected with the exhaust shaft, the right end wall of the switching friction wheel cavity is communicated with a line shaft which leftwards extends into the switching friction wheel cavity and, the utility model discloses a switch slider, including line wheel, line wheel intracavity, switching slider intracavity, the line wheel intracavity be equipped with line wheel axle fixed connection's line wheel, the right-hand member face fixedly connected with of motor extends to right switch the motor integral key shaft of friction wheel intracavity, switching slider intracavity sliding fit is connected with the switching slider, switching slider right-hand member face with fixedly connected with switches the slider spring between the switching slider chamber right-hand member wall.

4. A passenger elevator apparatus capable of automatically adjusting the intensity of discharged air according to the pressure as set forth in claim 3, wherein: the switching main shaft extends rightwards to penetrate through the switching friction wheel cavity into the switching slider cavity and is connected with the switching slider in a rotating fit manner, the switching main shaft is fixedly connected with a main friction wheel which is abutted against the exhaust friction wheel and can be abutted against the wire wheel friction wheel, the sliding door cavity is connected with a channel sliding door in a sliding fit manner, a sliding door spring is fixedly connected between the left end surface of the channel sliding door and the left end wall of the sliding door cavity, a channel limiting groove with an upward opening is arranged in the channel sliding door, a large limiting block which can correspond to the channel limiting groove is connected in a sliding fit manner in the large limiting block cavity, a large limiting block spring is fixedly connected between the upper end surface of the large limiting block and the upper end wall of the large limiting block cavity, a pull ring slider is connected in a sliding fit manner in the pull ring cavity, and a pull ring is fixedly connected on, the pull ring slider right-hand member face with fixedly connected with pull ring slider spring between the pull ring chamber right-hand member wall, magnetism slider intracavity sliding fit be connected with can with the magnetism slider that triggers the magnetic path and correspond, be equipped with the ascending switching spacing groove of opening in the magnetism slider, little stopper intracavity sliding fit be connected with can with switch the little stopper that the spacing groove corresponds, little stopper up end with the little stopper spring of fixedly connected with between the little stopper chamber upper end wall.

5. A passenger elevator apparatus capable of automatically adjusting the intensity of discharged air according to the pressure as set forth in claim 2, wherein: a speed regulating pull rope is fixedly connected between the lower end surface of the speed regulating slide block and the lower end surface of the pressure plate, a sliding door pull rope is fixedly connected between the left end surface of the channel sliding door and the wire wheel, a switching pull rope is fixedly connected between the right end surface of the switching slide block and the right end surface of the magnetic slide block, a large limiting block pull rope is fixedly connected between the upper end surface of the large limiting block and the right end surface of the pull ring sliding block, a small limit block pull rope positioned on the lower side of the large limit block pull rope is fixedly connected between the right end surface of the pull ring slide block and the upper end surface of the small limit block, the resultant force of the thrust of the powerful spring is greater than the thrust of the speed regulating spring, the attraction force between the trigger magnetic block and the magnetic slide block is greater than the thrust of the switching slide block spring, the thrust of the small limiting block spring is greater than that of the pull ring slider spring, and the thrust of the large limiting block spring is greater than that of the pull ring slider spring.