CN110002323B - A load carrying device with adjustable rated load for standing stair lift - Google Patents

Abstract

The invention discloses a loading device with adjustable rated load for a standing type corridor elevator. The handrail is connected with the top of the second main body rack shell, the first main body rack shell and a driving part of the double-pedal retracting mechanism are arranged in the second main body rack shell, the double-pedal retracting mechanism comprises the driving part and a pedal part which are connected, the driving part drives the pedal part to retract and unfold, a rated load adjusting mechanism is arranged in the pedal part, and the rated load is adjusted according to different use requirements through the rated load adjusting mechanism. The invention can meet the requirements of different rated loads of the corridor elevator under different use scenes, simultaneously improves the convenience of the corridor elevator carrying device in early calibration and later maintenance, can realize folding, and has clear division of labor because the upper pedal is mainly used for judging whether the corridor elevator is overloaded and the lower pedal is mainly used for bearing, thereby reducing the deformation of the weighing device in the upper pedal and prolonging the service life of the carrying device.

Description

A load carrying device with adjustable rated load for standing stair lift

technical field

The invention relates to the field of corridor elevators, in particular to a standing platform type rated load adjustable load device for corridor elevators.

Background technique

According to data released by the National Bureau of Statistics on January 23, as of the end of 2018, the national population aged 60 and above reached 249.49 million, accounting for 17.9% of the total population, and the aging of China's population continues to deepen. At present, some elderly people live in some old buildings with floors below the seventh floor without elevators, and it is extremely inconvenient to travel up and down the stairs. The corridor elevator can effectively solve this problem. The corridor elevator is installed on the side of the corridor, and the foldable design of its carrier device will not occupy too much corridor space and will not have too much impact on the passage of the corridor.

At present, there are three kinds of carrying devices of corridor elevators widely implemented: standing platform type, seat type and wheelchair platform type.

SUMMARY OF THE INVENTION

In order to adapt to the requirements of corridor elevators with different rated loads in different usage scenarios, and at the same time improve the convenience of early calibration and post-maintenance of the corridor elevator load device, the present invention proposes an adjustable rated load for a standing corridor elevator cargo device.

The standing platform type carrier device in the present invention mainly includes two parts, one is the double-pedal retractable mechanism, the double-pedal retractable mechanism can not only realize folding, the upper pedal is mainly used for judging whether it is overloaded, and the lower pedal is mainly used for bearing load, which can Reduce the deformation of the weighing device and prolong the service life of the load device; second, the rated load adjustable mechanism can adapt to the needs of the corridor elevator with different rated loads in different usage scenarios, improving the early calibration of the corridor elevator load device and later maintenance. convenience.

The concrete technical scheme adopted by the present invention to solve its technical problems is:

The invention includes a handrail, a first main body frame casing, a second main body frame casing, a double-pedal retractable mechanism and a rated load adjustable mechanism; the handrail is connected with the top of the second main body frame casing, and the second main body frame casing The first main body frame shell and the driving part of the double-pedal retractable mechanism are installed inside. The double-pedal retractable mechanism includes a connected driving part and a pedal part. The driving part drives the retraction and unfolding of the pedal part. The rated load can be adjusted by the rated load adjustable mechanism, and the rated load can be adjusted according to different use requirements.

The drive part of the double-pedal retractable mechanism includes a motor drive assembly mainly composed of a servo motor, a motor bracket, a coupling, a screw rod, a nut block, and a screw nut seat, and a guide assembly mainly composed of a sliding rod and a sliding block. Axle seat; the servo motor is fixed on the casing of the first main body frame through the motor bracket, the output shaft of the servo motor is downwardly connected to the upper end of the screw rod through the coupling, and the upper end of the screw rod is fixed by the screw rod fixed on the casing of the first main body frame The base is supported and installed, the lower end of the screw is supported and installed by the screw support seat fixed on the shell of the first main body frame, the outer part of the screw is covered with a nut block through the threaded pair, the screw nut seat is fixedly sleeved outside the nut block, and the screw connector is fixed with the screw nut seat Connected; the upper end of the sliding rod is supported and installed by the sliding rod fixing seat fixed on the shell of the first main body frame, the lower end of the sliding rod is supported and installed by the sliding rod supporting seat fixed on the shell of the first main body frame, and the outside of the sliding rod is supported and installed by the sliding auxiliary sleeve. The sliding block, the sliding block and the sliding rod connecting piece are fixedly connected; the shaft seat is fixed on the bottom of the casing of the first main body frame.

The pedal part of the double-pedal retractable mechanism includes a first joint bearing seat, a second joint bearing seat, an upper pedal, a hinge, and a lower pedal; the upper pedal and the lower pedal pass through the hinge on the side away from the first main body frame shell. Hinged, the upper pedal is fixed with a first joint bearing seat and a second joint bearing seat at the side part close to the first main body frame shell, and the first joint bearing seat and the second joint bearing seat are respectively connected with the screw connections of the motor drive assembly, The sliding rod connecting piece of the guide assembly is hinged, and the lower pedal is hinged through the third connecting shaft and the shaft seat at the side part close to the casing of the first main body frame.

The upper pedal is mainly composed of an upper pedal bottom plate and a moving plate, a rectangular groove is set in the middle of the upper pedal bottom plate, a moving plate is installed in the rectangular groove, and a rated load adjustable mechanism is installed between the bottom surface of the moving plate and the bottom of the rectangular groove; The load-adjustable mechanism includes four air springs, leaf springs, micro-switch groups and adjusting screw and nut mechanisms. The four air springs are evenly distributed near the four corners of the rectangular groove. The moving plate is connected to the top of the four air springs through screws. The bottom surface of the four air springs is fixed on the bottom plate of the upper pedal by screws, and the moving plate is used for people to stand or goods to be placed. There is a mounting groove on one side of the rectangular groove, and the micro switch group and adjustment are installed in the mounting groove. In the screw nut mechanism, one side of the spring sheet is fixed to the groove edge of the installation groove as the fixed end, and the other side of the spring sheet is elastically tilted and tilted as the elastic end.

The adjusting screw nut mechanism includes an adjusting nut and an adjusting screw; the middle of the adjusting screw is fitted with an adjusting nut through a threaded pair, the adjusting nut is fixed with a micro-switch group, the top surface of the micro-switch group protrudes upward above the installation groove, and the adjusting screw Both ends are installed on both ends of the installation groove of the upper pedal base plate through the support and positioning components.

The first joint bearing seat is hinged with the screw connecting piece through the first connecting shaft, the second joint bearing seat is hinged with the sliding rod connecting piece through the second connecting shaft, and the ends of the first joint bearing seat and the second joint bearing seat are provided with There is an external thread, and the external thread is screwed and fitted to the internal thread opened on the side of the upper pedal close to the casing of the first main body frame.

The hinge is a hinge, and the side edges of the bottom surface of the upper pedal and the side edges of the top surface of the lower pedal are hinged through two hinges.

The front side of the second main body frame shell in front of the screw rod and the sliding rod is provided with strip-shaped grooves, and two dust-proof strip brushes are arranged at the two strip-shaped grooves.

A bearing plate is arranged under the bottom surface of the axle seat, and the rear side of the bearing plate is fixed on the shell of the first main body frame; when the lower pedal is horizontal, the front side of the bearing plate and the rear side of the lower pedal are just in contact, so that the bearing plate is connected to the lower pedal. The supporting force of the horizontal force acts to support the lower pedal, which in turn supports the upper pedal.

The supporting and positioning assembly includes a sliding bearing, a sliding bearing seat and a circlip, the end of the adjusting screw is sleeved in the bearing hole of the sliding bearing seat through the sliding bearing, the sliding bearing seat is installed inside the bottom plate of the upper pedal, and the end of the adjusting screw passes through The circlip is installed after the circlip, and the sliding bearing is positioned through the circlip.

The adjusting screw is connected with a small foldable wrench at the end away from the housing of the first main body. The small wrench includes a small foldable wrench sleeve and a small foldable wrench handle. The adjusting screw is far away from the housing of the first main body. The end of the adjusting screw is in the shape of an outer hexagon, and the outer hexagonal end of the adjusting screw away from the shell of the first main body is inserted into the inner hexagonal hole at one end of the foldable small wrench sleeve, and the other end of the foldable small wrench sleeve and the foldable small wrench sleeve are matched. The wrench handle is hinged, the foldable small wrench handle rotates relative to the foldable small wrench sleeve to realize folding, and the foldable small wrench handle rotates vertically relative to the foldable small wrench sleeve and is embedded in the installation slot opened on the outer side of the upper pedal bottom plate middle.

The beneficial effects of the present invention are embodied in:

The invention can adjust the rated load of the loading device of the corridor elevator, so as to meet the requirements of the corridor elevator having different rated loads in different usage scenarios;

The invention can improve the convenience of calibration in the early stage and maintenance in the later stage of the loading device of the elevator. The required rated load (for example: xkg) is placed on the pedal, and the rated load adjustable mechanism is adjusted. When the switch is touched, a corresponding electric When the signal is detected, the rated load at this time is judged to be xkg;

The invention proposes a standing elevator loading device with upper and lower pedals. The upper pedal detects the load and the lower pedal bears the load.

Description of drawings

Fig. 1 is the overall appearance schematic diagram of the present invention;

Fig. 2 is the structural representation of the load-bearing plate of the present invention;

Fig. 3 is the double-pedal retractable structure schematic diagram of the present invention;

Fig. 4 is the partial enlarged schematic diagram of the double-pedal retractable structure of the present invention;

Fig. 5 is the overall appearance schematic diagram of the working state of the present invention;

Fig. 6 is the overall appearance schematic diagram of the pedal mechanism of the present invention retracting process;

FIG. 7 is a schematic diagram of the overall appearance of the present invention in a folded and folded state.

Fig. 8 is the overall schematic diagram of the upper pedal structure of the present invention;

9 is a schematic diagram of the structure of the upper pedal of the present invention (removing the moving plate);

10 is a schematic diagram of the structure of the upper pedal of the present invention (removing the moving plate and the spring sheet);

Figure 11 is a partial cross-sectional view taken along line A-A of Figure 10;

In the figure, the handrail 1, the first main body frame shell 2, the second main body frame shell 3, the dust-proof strip brush 4; the double-pedal retractable mechanism 5, the servo motor 5-1, the motor bracket 5-2, the coupling 5-3, screw fixing seat 5-4, screw 5-5, screw support seat 5-6, upper pedal 5-7, hinge 5-8, lower pedal 5-9, sliding rod support seat 5-10, slider 5-11, sliding rod 5-12, sliding rod fixing seat 5-13, nut block 5-14, screw nut seat 5-15, screw connecting piece 5-16, first connecting shaft 5-17, first joint bearing Seat 5-18, third connecting shaft 5-19, shaft seat 5-20, second joint bearing seat 5-21, second connecting shaft 5-22, sliding rod connecting piece 5-23; rated load adjustable mechanism 6 , moving plate 6-1, upper pedal bottom plate 6-2, air spring 6-3, spring sheet 6-4, micro switch group 6-5, adjusting screw nut mechanism 6-6; adjusting screw 6-6-1, Adjusting nut 6-6-2, foldable small wrench sleeve 6-6-3, foldable small wrench handle 6-6-4, circlip 6-6-5, sliding bearing 6-6-6, sliding bearing seat 6-6-7; load bearing plate 7.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments.

As shown in Figures 1 and 2, the specific implementation of the present invention includes a handrail 1, a first main body frame shell 2, a second main body frame shell 3, a dust-proof strip brush 4, a double-pedal retractable mechanism 5, and an adjustable rated load. mechanism 6 and load-bearing plate 7; the handrail 1 is connected to the top of the second main body frame shell 3 through bolts and nuts, and the second main body frame shell 3 is equipped with the first main body frame shell 2 and the double pedal retractable mechanism 5. The driving part, the double-pedal retractable mechanism 5 includes a connected driving part and a pedal part, the pedal part of the double-pedal retractable mechanism 5 is located outside the second main body frame shell 3, and the driving part drives the retraction and unfolding of the pedal part. For people to step on it, a rated load adjustable mechanism 6 is installed inside the pedal part, and the rated load can be adjusted according to different use requirements through the rated load adjustable mechanism 6 .

The first main body frame shell 2 and the second main body frame shell 3 of the present invention are both installed on the side of the staircase, and the side of the staircase is provided with an upward and downward oblique lift drive device (for example, a transmission such as a ball screw and a motor can be used) device), the first main body frame shell 2 is fixed on the oblique lift drive device, and the oblique lift drive device drives the first main body frame shell 2 to drive the entire load device to move up and down in the oblique direction of the stairs.

3 and 4, the driving part of the double-pedal retracting mechanism 5 includes a servo motor 5-1, a motor bracket 5-2, a coupling 5-3, a screw 5-5, a nut block 5-14, a screw The motor drive assembly composed of the nut seat 5-15, the guide assembly mainly composed of the sliding rod 5-12 and the slider 5-11, and the shaft seat 5-20; the servo motor 5-1 is fixed to the first through the motor bracket 5-2 On the main body frame shell 2, the output shaft of the servo motor 5-1 faces down through the coupling 5-3 and is coaxially connected to the upper end of the screw rod 5-5, and the upper end of the screw rod 5-5 is fixed on the first main body frame shell 2. The screw fixing base 5-4 is supported and installed, the lower end of the screw 5-5 is supported and installed by the screw support base 5-6 fixed on the housing 2 of the first main body frame, and the screw fixing base 5-4 and the screw support base 5-6 are both supported by bolts The nut is fixed on the housing 2 of the first main body frame, the screw 5-5 is sheathed with a nut block 5-14 through a threaded pair, the screw nut seat 5-15 is fixedly sheathed outside the nut block 5-14, and the screw connector 5-16 It is fixedly connected with the screw nut seat 5-15 by screws; the upper end of the sliding rod 5-12 is supported and installed by the sliding rod fixing seat 5-13 fixed on the first main body frame shell 2, and the lower end of the sliding rod 5-12 is fixed on the first main body frame shell 2. The sliding rod support seat 5-10 of the main frame shell 2 is supported and installed, the sliding rod fixing seat 5-13 and the sliding rod supporting seat 5-10 are fixed on the first main body frame shell 2 by bolts and nuts, and the sliding rod 5-12 A sliding block 5-11 is set on the outside through the sliding sub-suit, and the sliding block 5-11 is fixedly connected with the sliding rod connecting piece 5-23 by screws;

The pedal part of the double-pedal retractable mechanism 5 includes a first joint bearing seat 5-18, a second joint bearing seat 5-21, an upper pedal 5-7, a hinge 5-8, a lower pedal 5-9; the upper pedal 5-7 and the lower pedal 5-9 are hinged by hinges 5-8 at the side away from the first main body frame shell 2, and the upper pedal 5-7 is fixed with a first joint bearing seat 5 at the side close to the first main body frame shell 2 -18 and the second joint bearing seat 5-21, the first joint bearing seat 5-18 and the second joint bearing seat 5-21 are respectively connected with the screw connecting piece 5-16 of the motor drive assembly and the sliding rod connecting piece 5 of the guide assembly -23 is hinged, the lower pedal 5-9 is hinged at the side near the first main body frame shell 2 via the third connecting shaft 5-19 and the shaft seat 5-20.

The first joint bearing seat 5-18 is hinged with the screw connecting member 5-16 through the first connecting shaft 5-17, and the second joint bearing seat 5-21 is hinged with the sliding rod connecting member 5-23 through the second connecting shaft 5-22 , the ends of the first joint bearing seat 5-18 and the second joint bearing seat 5-21 are provided with external threads, and the external threads are screwed into the inner opening of the upper pedal 5-7 close to the side of the first main body frame shell 2 thread.

The hinge 5-8 is a hinge, and the top and bottom sides of the upper pedal 5-7 and the top and bottom sides of the lower pedal 5-9 are hinged through two hinges. The hinge 5-8 enables stacking and relative rotation of the upper pedal 5-7 and the lower pedal 5-9.

A strip groove is provided on the front side of the second main body frame shell 3 in front of the screw 5-5 and the sliding rod 5-12, and the strip groove of the screw 5-5 is used for the screw connector 5-16 and the first joint bearing seat 5-18 The hinge assembly formed with the first connecting shaft 5-17 moves through, and the strip groove of the sliding rod 5-12 is formed by the second joint bearing seat 5-21, the second connecting shaft 5-22 and the sliding rod connecting piece 5-23 The hinge assembly moves through the two strip grooves, and two dust strip brushes 4 are arranged at the two strip grooves. The dust strip brushes 4 can block the external dust from entering the second main body frame shell 3 and reduce the dust entering the internal space.

The upper pedal 5-7 is mainly composed of an upper pedal bottom plate 6-2 and a moving plate 6-1, a rectangular groove is set in the middle of the upper pedal bottom plate 6-2, and a moving plate 6-1 is installed in the rectangular groove, and the bottom surface of the moving plate 6-1 The rated load adjustable mechanism 6 is installed between the bottom of the rectangular groove and the groove; the rated load adjustable mechanism 6 includes four air springs 6-3, spring sheets 6-4, micro switch group 6-5 and adjustment screw nut mechanism 6 -6, the four air springs 6-3 are evenly arranged at the four corners of the rectangular groove, the moving plate 6-1 is connected to the top surface of the four air springs 6-3 by screws, and the four air springs (6-3 ) is connected with the upper pedal bottom plate (6-2) by screws, the moving plate 6-1 is used for people to stand or goods are placed, and the rectangular groove is opened on the side away from the first main body frame shell 2. Installation grooves , install the micro switch group 6-5 and the adjusting screw nut mechanism 6-6 in the installation groove, the spring sheet 6-4 is located above the micro switch group 6-5 and the adjusting screw nut mechanism 6-6, the spring sheet 6-4 One side is fixed to the installation groove and the groove side close to the first main body frame shell 2 is used as the fixed end, and the other side of the spring sheet 6-4 is elastically tilted and tilted as the elastic end, and is located in the installation groove away from the side. Above the edge of the groove on one side of the housing 2 of the first main body frame.

3-7, the working process of the entire double-pedal retractable mechanism 5 is as follows: the rotation of the servo motor 5-1 drives the rotation of the screw 5-5, and the nut block 5-14 on the screw 5-5 moves up and down vertically, Make the end of the upper pedal 5-7 connected with the nut block 5-14 close to the end of the second main body frame shell 3 to move up and down linearly, the sliding rod 5-12 provides the support of the other end, the lower pedal 5-9 and the upper pedal 5-7 It is hinged through a hinge 5-8 and rotates around a third connecting shaft 5-19 fixed to the first main body frame shell 2. The nut block 5-14 moves on the screw 5-5, which is a moving pair. The upper pedal 5-7 and the lower pedal 5-9 are hinged, which is a rotating pair. The lower pedal 5-9 is around the third connecting shaft 5-19. Rotation is the rotation pair. The entire double-pedal retractable mechanism 5 is equivalent to a crank-slider mechanism, the nut block 5-14 is equivalent to the slider for driving, the upper pedal 5-7 is equivalent to the connecting rod, the lower pedal 5-9 is equivalent to the crank, the first main body The rack housing 2 corresponds to a rack. The double-pedal retractable mechanism can not only realize folding, but also because the upper pedal is mainly used to judge whether overloading, the lower pedal is mainly used to bear the load, and the division of labor is clear, which can reduce the deformation of the weighing device in the upper pedal and prolong the service life of the loading device. .

8-11, the adjusting screw nut mechanism 6-6 includes an adjusting nut 6-6-2 and an adjusting screw 6-6-1; the middle of the adjusting screw 6-6-1 is fitted with the adjusting nut 6-6- 2. The micro switch group 6-5 is fixed on the adjusting nut 6-6-2. The top surface of the micro switch group 6-5 slightly protrudes above the installation groove, and both ends of the adjusting screw 6-6-1 are supported by The positioning components are installed at both ends of the installation groove of the upper pedal base plate 6-2.

The present invention drives the micro switch group 6-5 to move between the fixed end of the spring sheet 6-4 and the elastic end of the spring sheet 6-4 by adjusting the screw 6-6-1, and then adjusts the relative position of the micro switch group 6-5. the gap between the spring pieces 6-4, and then adjust the movement amount of the spring piece 6-4 pressed down by the moving plate 6-1 to contact the micro switch group 6-5, and then adjust the corresponding movement when the moving plate 6-1 is pressed down. rated load.

Specifically: when the moving plate 6-1 is standing or the goods are placed, the moving plate 6-1 will have a relative displacement along the upper and lower height directions relative to the upper pedal bottom plate 6-2, and the moving plate 6-1 and the spring sheet 6-4 are Line contact, the moving plate 6-1 that moves downward will press down the spring sheet 6-4, the micro switch group 6-5 is fixed with the adjusting screw nut mechanism 6-6 by screws, and the micro switch group 6-5 is fixedly connected with the adjusting screw nut mechanism 6-6. 5. Adjust along the position of the adjusting screw 6-6-1, and then adjust the gap distance between the micro switch group 6-5 and the spring plate 6-4.

When the spring plate 6-4 is pressed down until it contacts and presses the micro switch group 6-5, it means overload.

The closer the micro switch group 6-5 is to the fixed end of the spring sheet 6-4, the smaller the gap distance is, and the weight object on the moving plate 6-1 is easy to press down, so that the spring sheet 6-4 presses down and contacts the micro switch group 6 -5, so the rated load is smaller. The closer the micro switch group 6-5 is to the elastic end of the spring sheet 6-4, the larger the gap distance, and the weight object on the moving plate 6-1 is not easy to press down, so that the spring sheet 6-4 presses down and contacts the micro switch group 6-5, so the rated load is larger.

As shown in Figure 2, a bearing plate 7 is provided under the bottom surface of the axle base 5-20, and the rear side of the bearing plate 7 is fixed on the first main body frame shell 2; when the lower pedal 5-9 is horizontal, the front side of the bearing plate 7 and The rear side of the lower pedal 5-9 just touches, thereby realizing the supporting force of the bearing plate 7 on the horizontal direction force of the lower pedal 5-9, supporting the lower pedal 5-9, and then supporting the upper pedal 5-7.

As shown in Figure 11, the support and positioning assembly includes a sliding bearing 6-6-6, a sliding bearing seat 6-6-7 and a retaining spring 6-6-5, and the end of the adjusting screw 6-6-1 passes through the sliding bearing 6-6 -6 is sleeved in the bearing hole of the sliding bearing seat 6-6-7, the sliding bearing seat 6-6-7 is installed inside the upper pedal bottom plate 6-2, and the end of the adjusting screw 6-6-1 passes through the retaining ring 6- After 6-5, install the circlip 6-6-5, and position the sliding bearing 6-6-6 through the circlip 6-6-5.

The adjusting screw 6-6-1 is connected with a small foldable wrench at the end away from the first main body frame shell 2, and the small foldable wrench includes a small foldable wrench sleeve 6-6-3 and a small foldable wrench handle 6- 6-4, the end of the adjusting screw 6-6-1 away from the first main body frame shell 2 is an outer hexagon, and the outer hexagonal end of the adjustment screw 6-6-1 away from the first main body frame shell 2 is inserted into the The 6-6-3 end of the foldable wrench socket 6-6-3 fits in the inner hexagonal hole, the other end of the foldable small wrench socket 6-6-3 is hinged with the foldable small wrench handle 6-6-4, and the foldable small wrench handle 6 -6-4 rotates relative to the foldable small wrench sleeve 6-6-3 to realize folding, and the foldable small wrench handle 6-6-4 is embedded in the vertical rotation state relative to the foldable small wrench sleeve 6-6-3 in the installation slot opened on the outer side of the upper pedal base plate 6-2.

When it is necessary to adjust the rated load (for example, during pre-calibration and later maintenance), take out the foldable small wrench handle 6-6-4 from the upper pedal bottom plate 6-2, and turn the foldable small wrench handle 6-6-4 end. The rotation of the adjusting screw 6-6-1 can be realized by the part, and the adjusting nut 6-6-2 can move linearly on the adjusting screw 6-6-1, so as to realize the linear movement of the micro switch group 6-5.

After the rated load is adjusted, rotate and reset the foldable small wrench handle 6-6-4 to the upper pedal bottom plate 6-2 to realize folding. 2 magnets attract each other, saving space and convenience.

The working principle process of the present invention is as follows:

Corridor elevators have different load ratings in different usage scenarios. For example, different motors and different users have different load ratings. In the present invention, according to actual needs, in the early calibration of the elevator loading device in the corridor, the micro switch group 6-5 is located at the highest position of the spring plate 6-4, and the weight of the target rated load is placed on the moving plate of the upper pedal 5-7. On 6-1, the moving plate 6-1 moves down, and the spring sheet 6-4 in contact with the moving plate 6-1 is pressed down. By rotating the foldable wrench handle 6-6-4, adjust the screw nut mechanism 6-6. Under the movement form conversion, the micro switch group 6-5 is moved until the micro switch group 6-5 is pressed by the spring plate 6-4, then a switch signal is transmitted to the control system, and it is judged that the calibration is completed at this time.

Due to the deformation of the parts, the corridor elevator needs to be regularly repaired in the later period. The rated load can be set directly by adjusting the micro switch group 6-5 through the method of pre-calibration.

When the load carrying device is not in operation, it is in the state of FIG. 7 . When the user presses the button of the elevator elevator, the elevator elevator will move to the user's position. When it arrives, the servo motor 5-1 rotates forward, driving the nut block 5-14 and the upper pedal 5-7 to move down, and the lower pedal 5- 9 also moves downwards around the third connecting axis 5-19, cf. FIG.

After the upper pedal 5-7 and the lower pedal 5-9 are flat, the user stands at the moving plate 6-1 of the upper pedal 5-7, and the rated load adjustment mechanism 6 will compare the user's weight with the rated load. If it is overloaded, it cannot be started; if it is not overloaded, after the user stands firm and presses the start button, the loading device moves forward through an external drive.

When the use is completed, leave the pedal, the servo motor 5-1 will reverse, drive the nut block 5-14 and the upper pedal 5-7 to move upward, and the lower pedal 5-9 will also move upward around the third connecting shaft 5-19, refer to Figure 6, the last two are flush and vertical, saving space, refer to Figure 7. This completes a working cycle of the cargo device.

It can be seen from the above implementation that the present invention can adapt to the requirements of corridor elevators with different rated loads in different usage scenarios, and at the same time improves the convenience of early calibration and later maintenance of the corridor elevator load device. The double-pedal retractable mechanism can not only realize folding, but also because the upper pedal is mainly used to judge whether overloading, the lower pedal is mainly used to bear the load, and the division of labor is clear, which can reduce the deformation of the weighing device in the upper pedal and prolong the service life of the loading device. .

Claims (7)

1. A load carrying device with an adjustable rated load for a standing corridor elevator, characterized in that it comprises a handrail (1), a first main body frame casing (2), a second main body frame casing (3), The double-pedal retractable mechanism (5) and the rated load adjustable mechanism (6); the handrail (1) is connected with the top of the second main body frame shell (3), and the second main body frame shell (3) is provided with a first A main body frame shell (2) and the driving part of the double-pedal retracting mechanism (5), the dual-pedal retracting mechanism (5) includes a connected driving part and a pedal part, and the driving part drives the retracting and unfolding of the pedal part, A rated load adjustable mechanism (6) is installed inside the pedal part, and the rated load is adjusted according to different use requirements through the rated load adjustable mechanism (6); The driving part of the double-pedal retracting mechanism (5) mainly consists of a servo motor (5-1), a motor support (5-2), a coupling (5-3), a screw (5-5), a nut The motor drive assembly composed of the block (5-14), the screw nut seat (5-15), the guide assembly mainly composed of the sliding rod (5-12) and the sliding block (5-11), and the shaft seat (5-20) ;The servo motor (5-1) is fixed on the first main body frame shell (2) through the motor bracket (5-2), and the output shaft of the servo motor (5-1) faces down through the coupling (5-3) Coaxially connected with the upper end of the screw (5-5), the upper end of the screw (5-5) is supported and installed by the screw fixing seat (5-4) fixed on the first main body frame shell (2), and the lower end of the screw (5-5) It is supported and installed by the screw support seat (5-6) fixed on the first main body frame shell (2). 15) The fixed sleeve is outside the nut block (5-14), and the screw connector (5-16) is fixedly connected with the screw nut seat (5-15); the upper end of the sliding rod (5-12) is fixed to the first main body frame by The sliding rod fixing seat (5-13) of the casing (2) is supported and installed, and the lower end of the sliding rod (5-12) is supported and installed by the sliding rod supporting seat (5-10) fixed on the casing (2) of the first main body frame, The sliding rod (5-12) is provided with a sliding block (5-11) through a sliding pair. The sliding block (5-11) is fixedly connected with the sliding rod connecting piece (5-23); the shaft seat (5-20) is fixed on the bottom of the first main body rack shell (2); The pedal part of the double-pedal retracting mechanism (5) comprises a first joint bearing seat (5-18), a second joint bearing seat (5-21), an upper pedal (5-7), a hinge (5-8) ), a lower pedal (5-9); the upper pedal (5-7) and the lower pedal (5-9) are hinged on the side away from the first main body frame shell (2) through a hinge (5-8), and the upper pedal (5-9) (5-7) A first joint bearing seat (5-18) and a second joint bearing seat (5-21) are fixed on the side close to the first main body frame shell (2), and the first joint bearing seat (5-21) is fixed. -18) and the second joint bearing seat (5-21) are respectively hinged with the screw connecting piece (5-16) of the motor drive assembly and the sliding rod connecting piece (5-23) of the guide assembly, and the lower pedal (5-9) Hinged through the third connecting shaft (5-19) and the shaft seat (5-20) at the side part close to the first main body frame shell (2); The upper pedal (5-7) is mainly composed of an upper pedal bottom plate (6-2) and a moving plate (6-1), a rectangular groove is formed in the middle of the upper pedal bottom plate (6-2), and the moving plate (6) is installed in the rectangular groove. -1), a rated load adjustable mechanism (6) is installed between the bottom surface of the moving plate (6-1) and the bottom of the rectangular groove; the rated load adjustable mechanism (6) includes four air springs (6-3) , spring sheet (6-4), micro switch group (6-5) and adjusting screw nut mechanism (6-6), four air springs (6-3) are evenly arranged in the rectangular groove near the four corners, The moving plate (6-1) is connected to the top surfaces of the four air springs (6-3) through screws, and the bottom surfaces of the four air springs (6-3) are fixed to the upper pedal bottom plate (6-2) through screws. (6-1) is used for people to stand or goods to be placed. A mounting groove is opened on one side of the rectangular groove, and the micro switch group (6-5) and the adjusting screw nut mechanism (6-6) are installed in the mounting groove. One side of the spring sheet (6-4) is fixed to the groove edge of the installation groove as a fixed end, and the other side of the spring sheet (6-4) is elastically tilted up as an elastic end; When the spring plate (6-4) is pressed down until it contacts and presses the micro switch group (6-5), it means overload; The adjusting screw nut mechanism (6-6) includes an adjusting nut (6-6-2) and an adjusting screw (6-6-1); the middle part of the adjusting screw (6-6-1) is fitted with an adjusting nut ( 6-6-2), fix the micro switch group (6-5) on the adjusting nut (6-6-2), the top surface of the micro switch group (6-5) protrudes above the installation groove, adjust the screw Both ends of (6-6-1) are installed on both ends of the installation groove of the upper pedal base plate (6-2) through the support and positioning components. 2. A load carrying device with adjustable rated load for a standing stair lift according to claim 1, characterized in that: the first joint bearing seat (5-18) passes through the first connecting shaft ( 5-17) is hinged with the screw connecting piece (5-16), the second joint bearing seat (5-21) is hinged with the sliding rod connecting piece (5-23) through the second connecting shaft (5-22), and the first joint The ends of the bearing seat (5-18) and the second joint bearing seat (5-21) are provided with external threads, and the external threads are screwed and fitted to the side of the upper pedal (5-7) close to the housing (2) of the first main body frame Internal thread opened at the top. 3. A kind of loading device with adjustable rated load for standing stair lift according to claim 1, characterized in that: the hinge (5-8) is a hinge, and the upper pedal (5-7) ) The side of the bottom side and the side of the top side of the lower pedal (5-9) are hinged by two hinges. 4. A load carrying device with adjustable rated load for standing stair lift according to claim 1, characterized in that: the screw (5-5) and the sliding rod (5-12) in front of The front side of the housing (3) of the second main body frame is provided with strip-shaped grooves, and two dust-proof strip brushes (4) are arranged at the two strip-shaped grooves. 5. The load-bearing device with adjustable rated load for a standing corridor elevator according to claim 1, characterized in that: a load-bearing plate (7) is provided under the bottom surface of the shaft seat (5-20) , the rear side of the load-bearing plate (7) is fixed on the first main body frame shell (2); when the lower pedal (5-9) is horizontal, the front side of the load-bearing plate (7) and the rear side of the lower pedal (5-9) are just contact, thereby realizing the supporting force of the bearing plate (7) on the horizontal direction force of the lower pedal (5-9), supporting the lower pedal (5-9), and further supporting the upper pedal (5-7). 6 . The load-carrying device with adjustable rated load for a standing stair lift according to claim 1 , wherein the support and positioning assembly comprises a sliding bearing (6-6-6), a sliding bearing The seat (6-6-7) and the retaining spring (6-6-5), the end of the adjusting screw (6-6-1) is sleeved on the sliding bearing seat (6-6-6) through the sliding bearing (6-6-6) 7), the sliding bearing seat (6-6-7) is installed inside the upper pedal bottom plate (6-2), and the end of the adjusting screw (6-6-1) passes through the retaining ring (6-6-5). ) and then install the circlip (6-6-5), and position the sliding bearing (6-6-6) through the circlip (6-6-5). 7. A load carrying device with an adjustable rated load for a standing stair lift according to claim 1, characterized in that: the adjusting screw (6-6-1) is far away from the first main body frame The end of the shell (2) is connected with a small foldable wrench, and the small foldable wrench includes a small foldable wrench sleeve (6-6-3), a small foldable wrench handle (6-6-4), and an adjusting screw (6-6-4). -6-1) The end part far away from the first main body frame shell (2) is hexagonal, and the outer hexagonal end of the adjusting screw (6-6-1) away from the first main body frame shell (2) is inserted into the Fit in the inner hexagonal hole at one end of the foldable small wrench socket (6-6-3), and the other end of the foldable small wrench socket (6-6-3) is hinged with the foldable small wrench handle (6-6-4), The foldable small wrench handle (6-6-4) rotates relative to the foldable small wrench socket (6-6-3) to realize folding, and the foldable small wrench handle (6-6-4) is opposite to the foldable small wrench socket (6-6-3) is embedded in the installation groove opened on the outer side of the upper pedal bottom plate (6-2) in a state of vertical rotation.

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