CN215326293U

CN215326293U - Corridor stair climbing auxiliary device

Info

Publication number: CN215326293U
Application number: CN202120286602.3U
Authority: CN
Inventors: 宁玮辰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-12-28
Anticipated expiration: 2031-02-01

Abstract

The utility model provides a corridor stair climbing auxiliary device which comprises a clamping mechanism capable of clamping a corridor escalator, a transmission mechanism capable of driving the clamping mechanism to clamp or loosen the corridor escalator, and handrails capable of driving the transmission mechanism; the handrail can drive the clamping mechanism to clamp or release the corridor escalator through the transmission mechanism; when the clamping mechanism clamps the corridor escalator, the clamping mechanism and the corridor escalator are in a clamping self-locking state, and the auxiliary device cannot move along the corridor escalator; when the fixture relaxes the stairway stairs, the auxiliary device can move along the stairway stairs. The utility model solves the problems of low safety, complex power supply, high cost and the like of the conventional electric driving stair climbing assistor, and also solves the potential safety hazard that the conventional unpowered driving device still needs to exert force to climb a stair through the legs of the old and is unstable in support.

Description

Corridor stair climbing auxiliary device

Technical Field

The utility model relates to an auxiliary device used when a corridor climbs a building, in particular to a corridor climbs the building auxiliary device which is arranged on a corridor escalator.

Background

Along with the high-quality development of economy in China, the urban construction is rapidly advanced, the residential supporting facilities are continuously improved, and the building climbing through the elevator and the escalator is very convenient and safe. However, most of the houses constructed at the end of the last century are not equipped with an elevator or escalator device due to the limitations of the design level and the economic level of the building structure. China enters an old society, and the old residences are generally used by the old. With the increase of age, the elderly have insufficient leg strength. However, when climbing stairs, the user mainly relies on leg strength to complete the exercise, which is very strenuous for the old. Therefore, the old people can not conveniently climb the stairs and are not safe, and the old people are one of the difficulties in daily life. On the other hand, with the continuous increase of overpasses and other infrastructures with stairs in cities, inconvenience is brought to the traveling of the old.

The conventional device for assisting the old to climb the stairs comprises an electric driving device and an unpowered driving device.

1. An electric drive device:

chinese patent CN 109898763 a discloses an assisting device for corridor going upstairs, which utilizes a power supply to drive a screw-type driving wheel to rotate, and utilizes screw-thread transmission to make the handrail mounted on the handrail frame move up and down along the track. The old man drives the handrail up and down by grabbing the handrail and pressing a button of the electric device. However, the device has a serious safety problem, and when the handrail is driven to move by an electric motor, the old people can fall down due to the fact that the moving speed of the old people cannot keep up with the speed of the handrail because the leg strength of the old people is insufficient, and even the life safety of the old people is threatened. Secondly, when such a device is charged, a power charging device is required to be arranged in the old residential area or the infrastructure such as an overpass, so that the cost is too high, and the device cannot be widely applied to all the infrastructures such as the old residential area or the overpass.

2. Unpowered drive arrangement:

chinese patent CN 106263330 a discloses a labor-saving crutch for self-help boarding. The labor-saving crutch consists of a pedal with half of the height of a step and a crutch arranged on the pedal. The old man can be one hand walking stick, and on only half footboard of ladder height was stepped on earlier to one foot, then another half height of same step was stepped on to another foot. This allows each step to be completed in two steps, each step using only half the leg force. Although the walking stick is labor-saving, the walking stick has more steps, and the walking stick can go upstairs by utilizing the leg strength of the old, so that the fundamental problem that the old is difficult to climb stairs is not solved. In addition, the labor-saving crutch may have unstable potential safety hazard when supported on the ground.

Disclosure of Invention

The utility model aims to provide a corridor stair climbing auxiliary device based on friction self-locking, aiming at overcoming the defects of the conventional corridor stair climbing auxiliary device. The device is used for solving the problems of low safety, complex power supply, high cost and the like of the conventional electric drive stair climbing assistor. And the potential safety hazard that the conventional unpowered driving device still needs to climb the building by applying force through the legs of the old and has unstable support is solved.

The technical scheme of the utility model is as follows:

the corridor stair climbing auxiliary device comprises a clamping mechanism capable of clamping a corridor escalator (19), a transmission mechanism capable of driving the clamping mechanism to clamp or loosen the corridor escalator (19), and a handrail capable of driving the transmission mechanism;

the clamping mechanism comprises a left clamping piece and a right clamping piece, the shape of the part, matched with the corridor escalator (19), of the left clamping piece and the right clamping piece is matched with the shape of the cross section of the corridor escalator (19), and a gasket for increasing friction force is arranged on the part;

the handrail can drive the clamping mechanism to clamp or release the corridor escalator (19) through the transmission mechanism; when the clamping mechanism clamps the corridor escalator (19), the clamping mechanism and the corridor escalator (19) are in a clamping self-locking state, and the auxiliary device cannot move along the corridor escalator (19); when the clamping mechanism loosens the corridor escalator (19), the auxiliary device can move along the corridor escalator (19) and can automatically slide downwards along the corridor escalator (19) under the action of gravity.

The transmission mechanism and the clamping mechanism are arranged in the shell; the transmission mechanism is arranged on one side of a laminate in the shell, and the other side of the laminate is also provided with a roller (11); when the auxiliary device moves along the corridor escalator (19), the roller (11) moves along the corridor escalator (19), and the auxiliary device forms rolling fit with the corridor escalator (19) through the roller (11).

Furthermore, the transmission mechanism adopts a gear transmission mechanism and comprises a driving gear and a driven gear, the rotating shaft of the driving gear is fixed, the driving gear is fixedly connected with the left clamping piece, and the driven gear is fixedly connected with the right clamping piece; the handrail drives the driving gear to rotate around the rotating shaft of the handrail, so that the driven gear is driven to rotate forwards or backwards, the left clamping piece and the right clamping piece can move oppositely or back to back, and the corridor escalator (19) can be clamped or loosened.

Furthermore, the driving gear and the driven gear are gears with the same modulus, tooth number and tooth width and are in matched transmission through external meshing.

Furthermore, the transmission mechanism adopts a rocker transmission mechanism and comprises a driving rocker, two connecting rods and two driven rockers; the driving rocker is connected with the two connecting rods through a revolute pair, the two connecting rods are correspondingly connected with the two driven rockers through revolute pairs, and the driving rocker and the two driven rockers are arranged in the shell through a rotating shaft with fixed positions; the driving rocking bar is driven to rotate around the rotating shaft of the handrail, and then the connecting rod drives the two driven rocking bars to rotate around the rotating shaft of the handrail, so that the left clamping piece and the right clamping piece can move in the opposite direction or in the opposite direction, and the corridor escalator (19) can be clamped or loosened.

Furthermore, the handrail adopts a non-detachable folding structure and comprises a handrail rod, a handrail cylinder and a sleeve; the handrail cylinder is fixedly connected with the transmission mechanism; one end of the handrail rod is connected with one end of the handrail cylinder through a pin shaft, and the handrail rod can rotate around one end of the handrail cylinder through the pin shaft; the sleeve is sleeved at the position where the grab rail is connected with the handrail cylinder through the pin shaft, the side wall of the sleeve is provided with a slot, and the grab rail can be locked and released relative to the rotational freedom degree of the handrail cylinder by rotating the sleeve through the slot on the side wall of the sleeve.

Furthermore, the handrail adopts a detachable structure and comprises a handrail rod and a handrail cylinder; the handrail cylinder is fixedly connected with the transmission mechanism; one end of the handrail rod is connected with one end of the handrail cylinder in a threaded fit mode.

Advantageous effects

The utility model provides a corridor stair climbing auxiliary device, which solves the problems of low safety, complex power supply, high cost and the like of the conventional electric driving stair climbing auxiliary device, and also solves the potential safety hazard that the conventional unpowered driving device still needs to climb a building by applying force through legs of the old and is unstable in support.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of self-locking stress analysis of a gear transmission mechanism.

Fig. 2 is a front cross-sectional view of the geared non-detachable folding device in its operating state.

Fig. 3 is a front cross-sectional view of the geared non-detachable folding device in a non-operational state.

FIG. 4 is a front sectional view of the gear-driven detachable crutch device in an operating state.

FIG. 5 is a front cross-sectional view of the gear-driven detachable crutch device in a non-operating state.

FIG. 6 is a front sectional view of the dual-rocker clamping detachable crutch device in an operating state.

FIG. 7 is a front cross-sectional view of the dual-rocker clamping detachable crutch device in a non-operational state.

Fig. 8 is a front cross-sectional view of the dual-rocker grip non-detachable folding device in its operating state.

Fig. 9 is a front cross-sectional view of a dual-rocker grip non-detachable folding device in an inoperative state.

Detailed Description

The corridor stair climbing auxiliary device provided by the utility model realizes the friction self-locking of the device by adopting a lever principle. The escalator handrail driving device comprises a clamping mechanism capable of clamping the escalator 19, a transmission mechanism capable of driving the clamping mechanism to clamp or loosen the escalator 19, and a handrail capable of driving the transmission mechanism. The transmission mechanism adopts a gear transmission or a double-rocker mechanism, and the handrail adopts a detachable crutch type or a non-detachable folding type.

The gear transmission is realized by external meshing of two gears with the same modulus, tooth number and tooth width. The clamping piece of the clamping mechanism is fixedly connected with the two gears, and the rubber piece is fixed on the clamping piece and is made into the same shape as the escalator, so that the contact area is increased.

For the non-detachable folding type handrail, the handrail rod is hinged with the handrail cylinder through the pin shaft, and the handrail rod can rotate in the vertical direction. The handrail cylinder is fixed on the end surface of the driving gear. The grab bar is folded and hung on one side of the staircase under the non-working state, and can be placed in a horizontal position when in use. And for the detachable crutch type, the handrail rod is connected with the handrail cylinder through threads. When in use, the handrail rod and the handrail cylinder are screwed. The detachable handrail pole can close as an organic whole with the walking stick of old man's trip: when climbing the building, the walking stick can be used as a handrail and can be used as a walking stick after being detached. The handrail cylinder is rotated by pulling or pushing the handrail rod, the handrail cylinder drives the gear and the clamping pieces to rotate together, the two externally meshed gears rotate in opposite directions, and the driven gear drives the clamping pieces fixedly connected with the driven gear to rotate in opposite directions, so that the two clamping pieces and the escalator are in a state of clamping, self-locking or loosening motion.

For the non-detachable folding type handrail, the sleeve is used as a locking device for rotation between the handrail rod and the handrail cylinder, the sleeve is provided with a slotted structure, and when the handrail rod is in a working state, in order to prevent the handrail rod from rotating to a vertical state again, the sleeve is rotated, so that the rotational freedom degree between the handrail rod and the handrail cylinder can be locked.

The gear transmission mechanism is fixed on a layer plate inside the shell, two gear shafts are fixed on one side of the layer plate, and the two gear shafts enable the gears to have determined positions. And a plurality of rollers are fixed on the other side of the laminate. The roller does not work when the clamping piece is clamped. When the clamping pieces are in a relaxed state, the device is integrally moved by pushing the grab bar, and the rollers can roll on the escalator to reduce the friction force during the integral movement.

The double-rocker mechanism is formed by connecting two connecting rods and three rockers through revolute pairs. The clamping piece is fixedly connected with the two driven rockers, and the rubber piece is fixed on the clamping piece and is made into the same shape as the escalator, so that the contact area is increased. Thereby make the initiative rocker rotate through pulling or pushing the handrail, the initiative rocker drives two connecting rods motion, two connecting rods drive two driven rockers and clamping piece and be in and press from both sides tight auto-lock or relax motion state. Three rocker shafts are fixed to one side of the layer plate, and the three rocker shafts enable the rockers to have determined positions.

And a plurality of corridor stair climbing auxiliary devices are arranged on the corridor escalator. After the old people climb the stairs, the pushing device moves downwards, and freely slides downwards to the bottom of the escalator along the escalator under the driving of the gravity of the device, so that the next old people can climb the stairs for use.

The utility model is described below with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1, F is the resultant force of the pulling force of the two hands when the old climbs the building; f_n1The extrusion force of the driving clip 6 and the escalator 19; f_n2The extrusion force of the driven clamping piece 7 and the escalator 19; f_t1Is the circumferential force of the driving gear 1; f_t2Is the circumferential force of the driven gear 2. Analyzing the stress of each component individually, and analyzing the components comprising the driving gear, the handrail and the driving clamping piece F, F_n1、F_t1The moments of the three forces are balanced. The stress analysis can obtain:

FL＝F_n1L′+F_t1r (1-1)

wherein L is the arm of force of the resultant force of the two hands; r is the gear radius; l' is the moment arm of the extrusion force.

Analyzing the component formed by the driven gear and the driven clamping piece, F_n2、F_t2The moments of the two forces are balanced. The stress analysis can obtain:

F_t2r＝F_n2L′ (1-2)

F_t1and F_t2The pair of acting force and reacting force with the same magnitude and opposite directions. The simultaneous expression (1-1) and (1-2) can be obtained:

FL＝(F_n1+F_n2)L′ (1-3)

dynamic friction between the

rubber sheets

18, 20 on the two clips and the stairs 19:

F_f＝μ(F_n1+F_n2) (1-4)

where μ is the coefficient of friction between the

rubber sheets

18, 20 on the clips and the stairs 19, which is about 0.4.

The two expressions of simultaneous (1-3) (1-4) can be expressed as follows:

it can be seen that the kinetic friction force F is greater than the force arm L' of the squeezing force by 2.5 times_fIs always larger than the driving force F for driving the device to slide downwards, and the static friction force F is formed between the

rubber sheets

18 and 20 on the clamping sheets and the escalator 19_fThe driving force F is always equal, the device is in a friction self-locking state, and the device cannot slide downwards. The stress analysis principle of the device driven by the double-rocker clamping mechanism is similar to that of gear drive, and the device can also be in a self-locking state.

As shown in fig. 2, 3, 4 and 5, the transmission mode of the device is a pair of gear transmission. The handrail device is of a non-detachable folding type and a detachable crutch type. The driving gear 1 and the driven gear 2 are in transmission through external meshing, and the rotating directions of the driving gear 1 and the driven gear 2 are opposite. The shaft 3 is used to fix the position of the driving gear 1, and the shaft 4 is used to fix the position of the driven gear 2. The shaft 3 and the shaft 4 are fixed to one side of the layer 5. The driving clamping piece 6 and the driven clamping piece 7 are respectively fixed on the driving gear 1 and the driven gear 2.

Rubber sheets

18, 20 are fixed to the two clips, respectively, and are formed in the same shape as the escalator 19, increasing the contact area. The jaws move synchronously with the gear, both jaws make the whole device in a self-locking state by clamping the stairs 19, and both jaws make the whole device in a movable state by loosening the stairs 19. The handrail barrel 8 is fixed on the driving gear 1. The handrail cylinder 8 is rotated, and the driving gear 1 and the driving clip 6 rotate around the shaft 3. The driven gear 2 and the driven jaw 7 rotate around the shaft 4 in opposite directions. As shown in fig. 2 and 3, the armrest apparatus is of a non-detachable foldable type. The handrail rod 9 is hinged with the handrail cylinder 8. As shown in fig. 3, the grab bar 9 is rotated to the vertical state in the non-operating state. As shown in fig. 2, the grab bar 9 rotates to a horizontal state during operation, and when the grab bar 9 is pushed, the grab barrel 8, the driving gear 1, the driving clip 6, the driven gear 2 and the driven clip 7 simultaneously move correspondingly. The sleeve 10 is arranged at the position where the handrail rod 9 is hinged with the handrail barrel 8. When the grab bar 9 is in the working state, the grab bar 9 can be clamped in the vertical direction by rotating the sleeve 10 by 90 degrees in order to prevent the grab bar 9 from rotating to the vertical state again. The other side of the layer plate 5 is fixed with a plurality of rollers 11. The rollers 11 are in direct contact with the stairs 19. When the driving clamping piece 6 and the driven clamping piece 7 are clamped, the whole device is in a clamping self-locking state. When the driving clamping piece 6 and the driven clamping piece 7 are loosened, the whole device is in a movable state. The shell 12 is fixedly connected with the bottom plate 13 and covers the driving gear 1, the driven gear 2, the shaft 3, the shaft 4, the layer plate 5, the driving clamping piece 6 and the driven clamping piece 7. When the two clamping pieces are in a relaxed state, the grab bar 9 is pushed, and when the grab barrel 8 contacts the hole wall of the shell 12, the whole device moves, and the roller 11 rolls on the staircase.

In specific implementation, the elderly go up stairs to lift the grab bar 9 from the vertical state of fig. 3 to the horizontal state of fig. 2. And the sleeve 10 is rotated to the position shown in fig. 2, the rotated sleeve 10 can prevent the grab bar 9 from rotating to the vertical state again. The handrail rod 9 is pushed upwards, the handrail cylinder 8 drives the driving gear 1 and the driving clamping piece 6 to move clockwise, the driven gear 2 and the driven clamping piece 7 which are meshed with each other are driven to move anticlockwise, the two clamping pieces are in a loosening state, the whole device is in a moving state, and when the handrail cylinder 8 contacts the hole wall of the shell 12, the roller 11 rolls upwards on the escalator 19 to drive the whole device to slide upwards. When the escalator ascends to a step, the handrail rod 9 is pulled downwards, the handrail cylinder 8 drives the driving gear 1 and the driving clamping piece 6 to do anticlockwise motion, the driven gear 2 and the driven clamping piece 7 which are meshed with each other are in clockwise motion, the two clamping pieces and the escalator are in a clamping and self-locking state, and the whole escalator can not slide downwards due to self-locking. The old man grasps the grab rail 9 by both hands, and both arms exert force to assist in slowly ascending the stairs.

As shown in fig. 4 and 5, the gear transmission device can also be matched with a detachable handrail, one end of the handrail rod 9 is provided with an external thread, and the inside of the handrail cylinder 8 is provided with an internal thread. As shown in fig. 4, the grab bar 9 is screwed into the grab barrel 8 during operation. As shown in fig. 5, the grab bar 9 is screwed out of the grab tube 8 during non-operation, and the grab bar 9 can be used as a crutch for the elderly to walk.

As shown in fig. 6, 7, 8 and 9, the transmission mode is a double-rocker transmission mechanism. The handrail device is of a non-detachable folding type and a detachable crutch type. The driving rocker 17 is connected with the connecting rod 14 and the connecting rod 15 through a revolute pair. The connecting rod 14 is connected with the driven rocker 2 through a revolute pair, and the connecting rod 15 is connected with the driven rocker 1 through a revolute pair. The clamping piece 6 is fixed on the driven rocker 1, and the clamping piece 7 is fixed on the driven rocker 2. The rubber sheet 18 is fixed to the two clips and is formed in the same shape as the escalator 19, increasing the contact area. The shaft 3, the shaft 4 and the shaft 16 are fixed on one side of the layer plate 5, the shaft 3 is fixed at the position of the driven rocker 1, the shaft 4 is fixed at the position of the driven rocker 2, and the shaft 16 is fixed at the position of the driving rocker 17. The handrail drum 8 is fixed on the active rocker 17. The handrail barrel 8 is pushed, the driving rocker 17 rotates around the shaft 16, the connecting

rods

14 and 15 drive the driven

rockers

2 and 1 to move, the driven rockers 1 rotate around the shaft 3, and the driven rockers 2 rotate around the shaft 4. The clamping piece 6 and the clamping piece 7 are in a clamping self-locking or loosening motion state along with the rotation of the driven rocker 1 and the driven rocker 2. As shown in fig. 6, the armrest apparatus is a detachable crutch type. One end of the handrail rod 9 is provided with an external thread, and an internal thread is arranged in the handrail cylinder 8. When the handrail machine works, the handrail rod 9 is screwed into the handrail cylinder 8. As shown in fig. 7, the grab bar 9 can be unscrewed when not in operation. The other side of the layer plate 5 is fixed with a plurality of rollers 11. The rollers 11 are in direct contact with the stairs 19. When the clamping piece 6 and the clamping piece 7 are clamped, the whole device is in a clamping state, and the roller 11 does not work. When the clamping piece 6 and the clamping piece 7 are loosened, the whole device is in a movable state, the roller 11 starts to work, and the device is moved integrally by pushing the grab bar 9. The shell 12 is fixedly connected with the bottom plate 13 and covers the driving rocker 17, the connecting rod 14, the connecting rod 15, the driven rocker 1, the driven rocker 2, the clamping piece 6, the clamping piece 7 and the laminated plate 5. When the two clamping pieces are in a relaxed state, the grab bar 9 is pushed, and when the grab barrel 8 contacts the hole wall of the shell 12, the whole device is driven to move.

When the handrail is used, the old people go upstairs to screw the handrail rod 9 into the handrail cylinder 8. The handrail rod 9 is pushed upwards, the handrail barrel 8 drives the driving rocker 17 to do clockwise motion around the shaft 16, the connecting rod 15 drives the driven rocker 1 to do anticlockwise motion around the shaft 3, the connecting rod 14 drives the driven rocker 2 to do clockwise motion around the shaft 4, the two clamping pieces are in a loosening state, the whole device is in a movable state, and when the handrail barrel 8 contacts the hole wall of the shell 12, the whole device slides upwards along the escalator 19 through the roller 11. When the device ascends to a step, the handrail rod 9 is pulled downwards, the handrail barrel 8 drives the driving rocker 17 to move anticlockwise around the shaft 16, the connecting rod 15 drives the driven rocker 1 to move clockwise around the shaft 3, the connecting rod 14 drives the driven rocker 2 to move anticlockwise around the shaft 4, the two clamping pieces are in a clamping state, the whole device cannot slide downwards due to self-locking, and the whole device is in an unmovable state. The old man grasps the grab rail 9 by both hands, and both arms exert force to assist in slowly ascending the stairs.

As shown in fig. 8 and 9, the dual rocker clamping mechanism can also be used with non-detachable foldable armrests. As shown in fig. 9, the grab bar 9 is in a vertical state in a non-operating state. As shown in fig. 8, the grab bar 9 is in a horizontal state when it is operated.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims

1. The utility model provides a corridor auxiliary device that upstairs which characterized in that: the escalator handrail driving device comprises a clamping mechanism capable of clamping a corridor escalator, a transmission mechanism capable of driving the clamping mechanism to clamp or loosen the corridor escalator, and a handrail capable of driving the transmission mechanism;

the clamping mechanism comprises a left clamping piece and a right clamping piece, the shape of the part, matched with the corridor escalator, of the left clamping piece and the right clamping piece is matched with the shape of the cross section of the corridor escalator, and a gasket for increasing friction force is arranged on the part;

the handrail can drive the clamping mechanism to clamp or release the corridor escalator through the transmission mechanism; when the clamping mechanism clamps the corridor escalator, the clamping mechanism and the corridor escalator are in a clamping self-locking state, and the auxiliary device cannot move along the corridor escalator; when the clamping mechanism loosens the corridor escalator, the auxiliary device can move along the corridor escalator and can automatically slide downwards along the corridor escalator under the action of gravity;

the transmission mechanism and the clamping mechanism are arranged in the shell; the transmission mechanism is arranged on one side of a laminate in the shell, and the other side of the laminate is also provided with a roller; when the auxiliary device moves along the corridor escalator, the roller moves along the corridor escalator, and the auxiliary device is in rolling fit with the corridor escalator through the roller.

2. A corridor upstairs assisting device according to claim 1, wherein: the transmission mechanism adopts a gear transmission mechanism and comprises a driving gear and a driven gear, the positions of the rotating shafts of the driving gear and the driven gear are fixed, the driving gear is fixedly connected with the left clamping piece, and the driven gear is fixedly connected with the right clamping piece; the handrail drives the driving gear to rotate around the rotating shaft of the handrail, the driven gear is driven to rotate forwards or backwards, the left clamping piece and the right clamping piece can move oppositely or back to back, and the corridor escalator can be clamped or loosened.

3. A corridor upstairs assisting device according to claim 2, wherein: the driving gear and the driven gear are gears with the same modulus, tooth number and tooth width and are in external meshing fit transmission.

4. A corridor upstairs assisting device according to claim 1, wherein: the transmission mechanism adopts a rocker transmission mechanism and comprises a driving rocker, two connecting rods and two driven rockers; the driving rocker is connected with the two connecting rods through a revolute pair, the two connecting rods are correspondingly connected with the two driven rockers through revolute pairs, and the driving rocker and the two driven rockers are arranged in the shell through a rotating shaft with fixed positions; the driving rocking bar is driven to rotate around the rotating shaft of the handrail, and then the connecting rod drives the two driven rocking bars to rotate around the rotating shaft of the handrail, so that the left clamping piece and the right clamping piece can move oppositely or oppositely, and the corridor escalator can be clamped or relaxed.

5. A corridor upstairs assisting device according to claim 1, wherein: the handrail adopts a non-detachable folding structure and comprises a handrail rod, a handrail cylinder and a sleeve; the handrail cylinder is fixedly connected with the transmission mechanism; one end of the handrail rod is connected with one end of the handrail cylinder through a pin shaft, and the handrail rod can rotate around one end of the handrail cylinder through the pin shaft; the sleeve is sleeved at the position where the grab rail is connected with the handrail cylinder through the pin shaft, the side wall of the sleeve is provided with a slot, and the grab rail can be locked and released relative to the rotational freedom degree of the handrail cylinder by rotating the sleeve through the slot on the side wall of the sleeve.

6. A corridor upstairs assisting device according to claim 1, wherein: the handrail adopts a detachable structure and comprises a handrail rod and a handrail tube; the handrail cylinder is fixedly connected with the transmission mechanism; one end of the handrail rod is connected with one end of the handrail cylinder in a threaded fit mode.