CN209757180U - Folding positioning locking mechanism and electric loading stair climbing machine with same - Google Patents

Abstract

The utility model discloses a folding positioning locking mechanism, which comprises a rotating connecting seat, a fixed connecting seat and a locking component, wherein the rotating connecting seat and the fixed connecting seat are mutually pivoted around an axial line, and the locking component is associated between the rotating connecting seat and the fixed connecting seat; a plurality of first positioning clamping parts which are distributed circumferentially around the axis are formed on one side of the rotating connecting seat facing the fixed connecting seat, a plurality of second positioning clamping parts which are distributed circumferentially around the axis are formed on one side of the fixed connecting seat facing the rotating connecting seat, and the first positioning clamping parts and the second positioning clamping parts can be clamped and positioned in a separable way; when the locking assembly locks the rotating connecting seat and the fixed connecting seat to mutually abut and close together, the first positioning clamping part and the second positioning clamping part are mutually clamped and positioned; when the locking assembly releases the lock and releases the rotating connecting seat and the fixed connecting seat to be away from each other, the first positioning clamping part and the second positioning clamping part are separated from each other.

Description

Folding positioning locking mechanism and electric loading stair climbing machine with same

Technical Field

The utility model relates to a transport mechanical equipment's technical field especially relates to a folding location locking mechanical system and have electronic year thing stair climbing machine of this mechanism.

Background

At present, to the building that does not install the elevator, the goods still need adopt artifical transport along stair, when the goods is heavier or the volume is great, needs many people to assist just can transport, because the space of stairwell is limited, and it is inconvenient that many people coordinate during the transport, seriously influences handling efficiency, and takes place the accident easily. With the development of economy and the progress of society, many novel devices mainly saving manpower appear in the goods transportation industry, and one of the novel devices is an electric stair climbing machine.

However, the grip of the existing electric stair climbing machine for users to hold is generally fixed or folded on the frame of the electric stair climbing machine, wherein for the structure fixedly installed with the grip, when the electric stair climbing machine is not used and needs to be stored, a large storage space still needs to be occupied, so that the electric stair climbing machine is very inconvenient to store and transport; moreover, to the structure of handle folding installation, the handle often takes place to slide when the locking location for the latched position of handle can not stable location, causes the incident easily in the use, and the structure is very complicated moreover, unable producer and user's needs.

Therefore, there is a need for a folding positioning locking mechanism and an electric stair climbing machine with the same to overcome the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folding location locking mechanical system, this folding location locking mechanical system have simple structure, can conveniently fold and the stable firm advantage of locking location.

Another object of the utility model is to provide an electronic year thing machine of climbing building that carries has simple structure, can conveniently fold and the stable firm advantage of locking location.

In order to achieve the above object, the present invention provides a folding positioning locking mechanism, which includes a rotating connecting seat, a fixed connecting seat and a locking assembly, wherein the rotating connecting seat and the fixed connecting seat are pivotally connected to each other around an axis, the locking assembly is associated between the rotating connecting seat and the fixed connecting seat, and the locking assembly selectively locks the rotating connecting seat and the fixed connecting seat to be abutted against each other and closed together or releases the locking to release the rotating connecting seat and the fixed connecting seat from each other; a plurality of first positioning clamping parts which are circumferentially distributed around the shaft axis are formed on one side of the rotating connecting seat facing the fixed connecting seat, a plurality of second positioning clamping parts which are circumferentially distributed around the shaft axis are formed on one side of the fixed connecting seat facing the rotating connecting seat, and the first positioning clamping parts and the second positioning clamping parts can be detachably clamped, positioned and matched with each other; when the locking assembly locks the rotating connecting seat and the fixed connecting seat to mutually abut and close together, the first positioning clamping part and the second positioning clamping part are mutually clamped and positioned; when the locking assembly releases the lock and loosens the rotating connecting seat and the fixed connecting seat to be away from each other, the first positioning clamping part and the second positioning clamping part are separated from each other.

Preferably, one of the first positioning and engaging portion and the second positioning and engaging portion is a spherical protrusion, and the other of the first positioning and engaging portion and the second positioning and engaging portion is a spherical groove detachably engaged with the spherical protrusion.

Preferably, the locking assembly comprises locking rods, and the locking rods are arranged on the rotating connecting seat and the fixed connecting seat in a penetrating manner.

Preferably, the rotating connecting seat is provided with a first penetrating hole, the fixed connecting seat is provided with a second penetrating hole, and the locking rod is arranged in the first penetrating hole and the second penetrating hole in a clearance manner.

Preferably, one end of the locking rod is formed with a limit cap.

Preferably, the locking assembly further comprises a screwing lock handle, the screwing lock handle is in threaded connection with one end of the locking rod, which is far away from the limiting cap, and the rotating connecting seat and the fixed connecting seat are both located between the limiting cap and the screwing lock handle.

Preferably, one side of the rotating connecting seat, which is far away from the fixed connecting seat, is provided with a limiting groove, and the limiting cap is circumferentially positioned and clamped in the limiting groove.

Preferably, one side of the fixed connecting seat, which is far away from the rotating connecting seat, is provided with a limiting groove, and the limiting cap is circumferentially positioned and clamped in the limiting groove.

In order to achieve the above object, the electric stair climbing machine comprises a frame, a handle, wheels, a power supply device, a rotary driver and a stair climbing actuator, wherein the wheels are horizontally pivoted to the lower end of the frame, the power supply device is detachably mounted on the frame, the rotary driver is fixed on the frame, and the rotary driver is electrically connected to the power supply end of the power supply device; the stair climbing machine executing mechanism is arranged at the lower end of the frame and is in transmission connection with the output end of the rotary driver; the electric carrying stair climbing machine further comprises the folding positioning locking mechanism, the fixed connecting seat is fixedly connected to the upper end of the frame, and the handle is fixedly connected to the rotating connecting seat.

Preferably, the electric loading stair climbing machine further comprises an illuminating assembly, the illuminating assembly comprises an illuminating lamp and a lampshade, the illuminating lamp is fixedly arranged on the front side of the lower end of the frame, and the lampshade is fixedly covered on the illuminating lamp.

Compared with the prior art, the rotary connecting seat and the fixed connecting seat of the folding positioning locking mechanism are mutually pivoted around an axial line, the locking component is related between the rotary connecting seat and the fixed connecting seat, and the locking component can selectively lock the rotary connecting seat and the fixed connecting seat to be mutually abutted and closed together or release the lock to release the rotary connecting seat and the fixed connecting seat to be mutually far away; a plurality of first positioning clamping parts which are distributed circumferentially around the axis are formed on one side of the rotating connecting seat facing the fixed connecting seat, a plurality of second positioning clamping parts which are distributed circumferentially around the axis are formed on one side of the fixed connecting seat facing the rotating connecting seat, and the first positioning clamping parts and the second positioning clamping parts can be clamped and positioned in a separable way; when the locking assembly locks the rotating connecting seat and the fixed connecting seat to mutually abut and close together, the first positioning clamping part and the second positioning clamping part are mutually clamped and positioned; when the locking assembly releases the lock and releases the rotating connecting seat and the fixed connecting seat to be away from each other, the first positioning clamping part and the second positioning clamping part are separated from each other. When the locking assembly locks the rotating connecting seat and the fixed connecting seat to mutually abut and close together, the structure that the first positioning clamping part and the second positioning clamping part are mutually clamped and positioned can ensure that the rotating connecting seat and the fixed connecting seat are stably and firmly locked and positioned, prevent the sliding between the rotating connecting seat and the fixed connecting seat and avoid safety accidents in the use process; when the locking assembly releases the lock and loosens the rotating connecting seat and the fixed connecting seat to be away from each other, the first positioning clamping part and the second positioning clamping part are separated from each other, so that the rotating connecting seat and the fixed connecting seat can be operated to rotate to required positions, the occupied space is reduced, and the storage and the transportation are convenient; therefore, the folding positioning locking mechanism has the advantages of simple structure, convenient folding and stable and firm locking and positioning. Because the utility model discloses an electronic year thing machine of climbing building has the utility model discloses a folding location locking mechanical system, the event the utility model discloses an electronic year thing machine of climbing building also has simple structure, can conveniently fold and lock the stable firm advantage of location.

Drawings

Fig. 1 is a perspective view of the electric loading stair climbing machine of the present invention in the stair climbing mode.

Fig. 2 is a perspective view of the electric loading stair climbing machine of the present invention in the translation mode.

Fig. 3 is a schematic combined perspective view of the unfolding/folding fixing rod and the attached wheel supporting mechanism of the electric stair climbing machine.

Fig. 4 is an exploded schematic view of fig. 3.

Fig. 5 is a schematic view of fig. 4 from another perspective.

Fig. 6 is a combined three-dimensional schematic view of the handle, the first silica gel sleeve, the second silica gel sleeve, the first start button, the fixed connecting pipe, the fourth silica gel sleeve and the folding positioning locking mechanism of the electric loading stair climbing machine of the present invention.

Fig. 7 is an exploded schematic view of fig. 6.

Fig. 8 is a schematic view of fig. 7 from another perspective.

Fig. 9 is a perspective view of the combination of the rotary actuator and the stair climbing actuator of the electric stair climbing machine.

Fig. 10 is an exploded schematic view of fig. 9.

Fig. 11 is a schematic view of fig. 10 from another perspective.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout.

Referring to fig. 1 to 11, the electric stair climbing device 100 of the present invention includes a frame 10, a handle 20, wheels 30a, a power supply device 30b, a rotary driver 30c, a stair climbing actuator 40 and an auxiliary wheel supporting mechanism 50, wherein the handle 20 is disposed at an upper end of the frame 10, the wheels 30a are horizontally pivoted to a lower end of the frame 10, and in detail, the wheels 30a are pivoted to left and right sides of the lower end of the frame 10. Power supply unit 30b detachable installs on frame 10, and power supply unit 30b specifically is rechargeable battery, in order to give the utility model discloses an electronic year thing machine of climbing building 100 of climbing supplies power, can recycle, and it is convenient to change. The rotary actuator 30c is preferably a motor, and the rotary actuator 30c is fixed to the vehicle body frame 10, and the rotary actuator 30c is electrically connected to the power supply terminal of the power supply device 30 b. The stair climbing machine executing mechanism is arranged at the lower end of the vehicle frame 10, the stair climbing executing mechanism 40 is in transmission connection with the output end of the rotary driver 30c, and the rotary driver 30c drives the stair climbing executing mechanism 40 to operate so as to realize the stair climbing action. The auxiliary wheel supporting mechanism 50 comprises a supporting wheel assembly 51 and a locking assembly 52, the supporting wheel assembly 51 is rotatably arranged on the frame 10, and the supporting wheel assembly 51 and the wheel 30a are both positioned at the front side of the frame 10; the support wheel assembly 51 has a retracted position (shown in fig. 1) retracted to the frame 10 and a support position (shown in fig. 2) extended to the frame 10, the locking assembly 52 is associated between the frame 10 and the support wheel assembly 51, and the locking assembly 52 selectively locks the support wheel assembly 51 at the retracted position or at the support position. Then when carrying out stair and climbing the building, lock supporting wheel subassembly 51 in closing the position through locking subassembly 52 and close, the user grips handle 20 and makes the utility model discloses an electronic year thing climbs building machine 100 slope, makes the utility model discloses an electronic year thing climbs building machine 100 and adjusts to climbing the building mode as shown in figure 1, is supplied power for rotary actuator 30c by power supply unit 30b and drives the operation of climbing building actuating mechanism 40, can realize the utility model discloses an electronic year thing climbs building machine 100 and carries out stair and climb the building. When walking on the level land, lock in the support position through locking subassembly 52 with supporting wheel subassembly 51, frame 10 is put to the level, and wheel 30a and supporting wheel subassembly 51 can walk on the level land simultaneously, make the utility model discloses an electronic year thing climbs building machine 100 adjustment and switches to the translation mode as shown in fig. 2, realizes general the utility model discloses an electronic year thing climbs building machine 100 adjustment to walking on the level land is horizontal, can regard as dull and stereotyped shallow to use. Not only simple structure, service function is diversified moreover, can realize walking in the slope when stair climb the building, and the level walking when walking on the level land is adjusted according to the walking road conditions of difference and is switched over, has improved adaptability greatly, and the user uses more laborsaving convenience. Specifically, the following:

Referring to fig. 1 to 5, a horizontally disposed unfolding and folding fixing rod 11 is fixedly disposed on the frame 10, and the supporting wheel assembly 51 is rotatably disposed on the unfolding and folding fixing rod 11.

The supporting wheel assembly 51 includes a supporting frame 511 and a caster 512, the supporting frame 511 is rotatably disposed on the foldable fixing rod 11, the caster 512 is disposed on the supporting frame 511, in this embodiment, the caster 512 is preferably a universal caster, but not limited thereto. The unfolding and folding fixing rod 11 is provided with a folding locking part (not marked in the figures) and an unfolding locking part (not marked in the figures) which are perpendicular to each other, the locking component 52 is arranged on the support frame 511, and the locking component 52 can be selectively clamped and locked in the folding locking part or the unfolding locking part; when the locking component 52 is locked in the folding locking portion, the support frame 511 is located at the folding position, and is suitable for climbing stairs. When the locking member 52 is locked by engagement with the expansion locking portion, the support frame 511 is located at the expansion position, and the support frame 511 and the caster 512 support and move in a translational mode, thereby enabling walking on a flat ground.

In detail, in the present embodiment, the folding locking portion includes a first folding locking groove 111 opened on the unfolding fixing rod 11, the unfolding locking portion includes a first unfolding locking groove 113 opened on the unfolding fixing rod 11, and the first folding locking groove 111 and the first unfolding locking groove 113 are located in the same circumferential direction; the locking assembly 52 includes a first locking member 521 and a first elastic member 522, the first locking member 521 slides on the supporting frame 511 along a direction perpendicular to the telescopic fixing rod 11, the first elastic member 522 is preferably a spring, but not limited thereto, the first elastic member 522 abuts between the first locking member 521 and the supporting frame 511, and the first elastic member 522 constantly drives the first locking member 521 to move toward the direction close to the telescopic fixing rod 11; the first locking member 521 can be selectively locked in the first folding locking groove 111 or the first unfolding locking groove 113 in a clamping manner, and when the first locking member 521 is opposite to the first folding locking groove 111 or the first unfolding locking groove 113, the first locking member 521 can be automatically clamped in the first folding locking groove 111 or the first unfolding locking groove 113 through the elastic action of the first elastic member 522, so that the operation is more labor-saving and convenient. The first locking member 521 is locked to engage with the first folding locking groove 111 or the first unfolding locking groove 113 to lock the support frame 511 in the folding position or the support position, and the structure is simple and reasonable.

Meanwhile, the folding locking portion further includes a second folding locking groove 112 that is opened on the unfolding and folding fixing rod 11 and is spaced from the first folding locking groove 111, the unfolding locking portion further includes a second unfolding locking groove 114 that is opened on the unfolding and folding fixing rod 11, and the second folding locking groove 112 and the second unfolding locking groove 114 are located in the same circumferential direction; the locking component 52 further includes a second locking member 523 and a second elastic member 524, the second locking member 523 slides on the supporting frame 511 along a direction perpendicular to the telescopic fixing rod 11, the second elastic member 524 is preferably a spring, but not limited thereto, the second elastic member 524 abuts between the second locking member 523 and the supporting frame 511, and the second elastic member 524 constantly drives the second locking member 523 to move toward the direction close to the telescopic fixing rod 11; the second locking member 523 can be selectively locked to the second folding locking groove 112 or the second unfolding locking groove 114 in a clamping manner, and when the second locking member 523 is opposite to the second folding locking groove 112 or the second unfolding locking groove 114, the second locking member 523 can be automatically locked to the second folding locking groove 112 or the second unfolding locking groove 114 by the elastic force of the second elastic member 524, so that the operation is more labor-saving and convenient. The second locking member 523 locks the engaging and locking structure with the second folding locking groove 112 or the second unfolding locking groove 114, so as to further lock the support frame 511 at the folding position or the support position, and the structure is more secure and reliable.

In more detail, the supporting frame 511 includes a first supporting rod 5111, a second supporting rod 5112 and a connecting rod 5113, the first supporting rod 5111 and the second supporting rod 5112 are both vertically pivoted on the unfolding/folding fixing rod 11, and the connecting rod 5113 is vertically and fixedly connected between the first supporting rod 5111 and the second supporting rod 5112, so that the supporting frame 511 has a simple and compact structure. A first receiving groove 5111a is formed at one end of the first supporting rod 5111 close to the retractable fixing rod 11, the first locking member 521 slides in the first receiving groove 5111a, and the first elastic member 522 abuts between the first locking member 521 and the groove bottom of the first receiving groove 5111a, so that the first locking member 521 and the first elastic member 522 are mounted on the first supporting rod 5111, and the structure is simple and compact. A second receiving groove 5112a is formed at one end of the second supporting rod 5112 close to the retractable fixing rod 11, the second locking member 523 slides in the second receiving groove 5112a, and the second elastic member 524 abuts between the second locking member 523 and the groove bottom of the second receiving groove 5112a, so that the second locking member 523 and the second elastic member 524 are mounted on the second supporting rod 5112, and the structure is simple and compact. The locking assembly 52 further includes an operating rod 525, the operating rod 525 is vertically and fixedly connected between the first locking member 521 and the second locking member 523, so as to facilitate the operation of the first locking member 521 to disengage from the first foldable locking groove 111 or the first foldable locking groove 113 and the operation of the second locking member 523 to disengage from the second foldable locking groove 112 or the second foldable locking groove 114. The first support rod 5111 is provided with a first avoidance elongated hole 5111b communicated with the first accommodating groove 5111a, the second support rod 5112 is provided with a second avoidance elongated hole 5112b communicated with the second accommodating groove 5112a, and the operating rod 525 is arranged in the first avoidance elongated hole 5111b and the second avoidance elongated hole 5112b in a gap penetrating manner so as to provide enough moving space for the operating rod 525 and play a role in guiding, so that the structure is more reasonable. In detail, the casters 512 are disposed at both the end of the first supporting rod 5111 away from the foldable fixing rod 11 and the end of the second supporting rod 5112 away from the foldable fixing rod 11, so that the first supporting rod can move more stably in the translation mode.

Referring to fig. 1 to 2 and 5 to 7, in the present embodiment, the electric stair climbing device 100 further includes a folding positioning locking mechanism 60, and the handle 20 is rotatably adjusted by the folding positioning locking mechanism 60 and disposed on the upper end of the frame 10.

Specifically, the folding positioning locking mechanism 60 of the present invention includes a rotating connecting seat 61, a fixed connecting seat 62 and a locking assembly 63, wherein the rotating connecting seat 61 and the fixed connecting seat 62 are pivotally connected to each other around an axis, the locking assembly 63 is associated between the rotating connecting seat 61 and the fixed connecting seat 62, and the locking assembly 63 can selectively lock the rotating connecting seat 61 and the fixed connecting seat 62 to be abutted against each other and closed together or release the locking to release the rotating connecting seat 61 and the fixed connecting seat 62 to be away from each other; a plurality of first positioning clamping parts 611 distributed circumferentially around the axis are formed on one side of the rotating connection seat 61 facing the fixed connection seat 62, a plurality of second positioning clamping parts 621 distributed circumferentially around the axis are formed on one side of the fixed connection seat 62 facing the rotating connection seat 61, and the first positioning clamping parts 611 and the second positioning clamping parts 621 can be detachably clamped and positioned to be matched with each other; when the locking assembly 63 locks the rotating connection seat 61 and the fixed connection seat 62 to abut against each other and close together, the first positioning engaging portion 611 and the second positioning engaging portion 621 are engaged with each other for positioning; when the locking assembly 63 releases the lock and releases the rotating connection seat 61 and the fixed connection seat 62 to move away from each other, the first positioning engaging portion 611 and the second positioning engaging portion 621 are disengaged from each other. Then, when the locking assembly 63 locks the rotating connection seat 61 and the fixed connection seat 62 to abut against each other and close together, the structure in which the first positioning engaging portion 611 and the second positioning engaging portion 621 are engaged with each other to position can ensure that the locking and positioning between the rotating connection seat 61 and the fixed connection seat 62 are stable and firm, prevent the sliding between the rotating connection seat 61 and the fixed connection seat 62, and avoid safety accidents during use; when the locking assembly 63 releases the lock and releases the rotating connection seat 61 and the fixed connection seat 62 to be away from each other, the first positioning clamping part 611 and the second positioning clamping part 621 are separated from each other, so that the rotating connection seat 61 and the fixed connection seat 62 can be operated to rotate to a required position, the occupied space is reduced, and the storage and the transportation are convenient; therefore, the folding positioning locking mechanism 60 has the advantages of simple structure, convenient folding and stable and firm locking and positioning.

In the present embodiment, the fixed connection base 62 is fixedly connected to the upper end of the frame 10, and the handle 20 is fixedly connected to the rotating connection base 61. Thereby realizing the rotatable adjustment of the grip 20 arranged at the upper end of the frame 10. When the locking assembly 63 is operated to release the lock and release the rotating connection seat 61 and the fixed connection seat 62 to be away from each other, the first positioning engaging portion 611 and the second positioning engaging portion 621 are disengaged from each other, so that the handle 20 can be operated to drive the rotating connection seat 61 to rotate around the fixed connection seat 62 to a desired position, and then when the locking assembly 63 is operated to lock the rotating connection seat 61 and the fixed connection seat 62 to be abutted against each other and closed together, the first positioning engaging portion 611 and the second positioning engaging portion 621 are engaged with each other to lock the position of the handle 20 relative to the frame 10, so that the handle 20 can be conveniently folded or unfolded and locked relative to the frame 10, when the electric loading stair climbing machine 100 of the present invention is not used and needs to be stored, the handle 20 is only required to be folded on the frame 10 to reduce the occupied space, thereby facilitating storage and transportation, and furthermore, when the handle 20 is locked and, the structure of the mutual clamping and positioning of the first positioning clamping part 611 and the second positioning clamping part 621 can ensure the stable and firm positioning of the handle 20 relative to the locking position of the frame 10, prevent slipping, avoid causing safety accidents in the use process, and has a very simple structure, thereby better meeting the requirements of manufacturers and users. Therefore, the electric loading stair climbing machine 100 of the present invention also has the advantages of simple structure, convenient folding, stable and firm locking and positioning.

Preferably, in the present embodiment, the first positioning engaging portions 611 and the second positioning engaging portions 621 are disposed in the same number and are uniformly distributed, so as to implement a one-to-one corresponding engaging and positioning structure, so as to enhance the stability of the engaging and positioning. Of course, in other embodiments, the number of the first positioning engaging portions 611 and the second positioning engaging portions 621 may be different, and the structure of engaging and positioning can be realized in the same manner, so that the description is omitted here.

Preferably, in this embodiment, the first positioning engaging portion 611 is a spherical protrusion, and the second positioning engaging portion 621 is a spherical recess detachably engaged with the spherical protrusion, so that the engaging and positioning structure between the rotating connection seat 61 and the fixed connection seat 62 is more compact and stable, and the sliding and loosening are not easy to occur. Of course, in another embodiment, the first positioning engaging portion 611 may be a spherical recess, and the second positioning engaging portion 621 is a spherical protrusion detachably engaged with the spherical recess in a mutually engaging and positioning manner, which can also achieve the engaging and positioning structure. Moreover, in other embodiments, the first positioning engaging portion 611 and the second positioning engaging portion 621 may also be selected from other structures capable of achieving mutual engaging and positioning cooperation, and therefore, the description thereof is omitted.

Furthermore, the locking assembly 63 includes a locking rod 631 and a tightening lock handle 632, wherein the locking rod 631 is disposed on the rotating connecting seat 61 and the fixed connecting seat 62. Specifically, a first penetrating hole 612 is formed in the rotating connection seat 61, a second penetrating hole 622 is formed in the fixed connection seat 62, and the locking rod 631 penetrates through the first penetrating hole 612 and the second penetrating hole 622 in a gap manner, so that the locking rod 631 penetrates through the rotating connection seat 61 and the fixed connection seat 62.

Furthermore, a limit cap 631a is formed at one end of the locking rod 631, the tightening lock handle 632 is screwed to the end of the locking rod 631 away from the limit cap 631a, and the rotating connection seat 61 and the fixed connection seat 62 are both located between the limit cap 631a and the tightening lock handle 632. That is, the rotating connection seat 61 and the fixed connection seat 62 are locked between the limiting cap 631a and the tightening lock handle 632 by rotating and tightening the tightening lock handle 632, so as to lock the rotating connection seat 61 and the fixed connection seat 62 to abut against each other and close together, and the first positioning engaging portion 611 and the second positioning engaging portion 621 are engaged with each other for positioning. And the first positioning engaging portion 611 and the second positioning engaging portion 621 are disengaged when the rotating connection base 61 and the fixed connection base 62 are separated from each other by rotating and loosening the tightening lock handle 632 to release the locking and loosening.

Preferably, in this embodiment, the limiting groove 613 is formed in the side of the rotating connecting seat 61 away from the fixed connecting seat 62, the limiting cap 631a is circumferentially positioned and engaged with the limiting groove 613, and the screwing lock 632 is correspondingly positioned on the side of the fixed connecting seat 62 away from the rotating connecting seat 61, so that the locking rod 631 can not be driven to rotate when the screwing lock 632 is operated to rotate, and the structure is more convenient and reasonable. Of course, in other embodiments, the limiting groove 613 can be selectively opened on a side of the fixed connection seat 62 away from the rotating connection seat 61, and the tightening lock handle 632 is correspondingly located on a side of the rotating connection seat 61 away from the fixed connection seat 62, so that the rotating connection seat 61 and the fixed connection seat 62 can be locked between the limiting cap 631a and the tightening lock handle 632 by rotating and tightening the tightening lock handle 632, and therefore, the description is omitted here.

Alternatively, in the present embodiment, the folding positioning locking mechanism 60 of the present invention includes two rotating connecting seats 61, two fixed connecting seats 62 and a set of locking components 63, that is, the two rotating connecting seats 61 and the two fixed connecting seats 62 share the same set of locking components 63. In detail, two rotating connection seats 61 are respectively fixedly connected to two ends of the handle 20, two fixed connection seats 62 are respectively fixedly connected to the left and right sides of the upper end of the frame 10, and a horizontal fixed connection pipe 64 is further fixedly connected between the two fixed connection seats 62 to reinforce the installation structure of the two fixed connection seats 62. The locking rod 631 is horizontally inserted into the first insertion hole 612 of the left rotary connecting seat 61, the second insertion hole 622 of the left fixed connecting seat 62, the fixed connecting tube 64, the second insertion hole 622 of the right fixed connecting seat 62, and the first insertion hole 612 of the right rotary connecting seat 61 in a clearance manner from left to right, the stop cap 631a is located in the stop groove 613 of the left rotary connecting seat 61, and the screwing lock 632 is located on the right of the right rotary connecting seat 61. The locking positioning and unlocking of the left rotary connecting seat 61 and the fixed connecting seat 62 and the right rotary connecting seat 61 and the fixed connecting seat 62 can be realized by the locking rod 631 and the screwing lock handle 632 of the group of locking assemblies 63, and the operation is simple and convenient. Of course, in other embodiments, the left rotary connecting seat 61 and the fixed connecting seat 62 are locked, positioned and unlocked by the locking rod 631 and the tightening lock handle 632 of one single group of locking assemblies 63, and the right rotary connecting seat 61 and the fixed connecting seat 62 are also locked, positioned and unlocked by the locking rod 631 and the tightening lock handle 632 of another single group of locking assemblies 63, which can also realize the structure of the upper end of the frame 10 for rotatably adjusting the grip 20, and therefore, the description is omitted here.

Referring to fig. 9 to 11, the stair climbing actuator 40 includes a pivot mounting seat 41, a rotating shaft 42, a first rotating arm 43, a second rotating arm 44, a first positioning sleeve 45a, a second positioning sleeve 45b, a locking screw 46, a first blocking piece 47a, a second blocking piece 47b, a first nut 48a and a second nut 48b, the pivot mounting seat 41 is fixed to a front side of a lower end of the frame 10, the rotating shaft 42 is horizontally pivoted to the pivot mounting seat 41, the rotary actuator 30c is preferably fixedly mounted on a top of the pivot mounting seat 41 to realize a structure that the rotary actuator 30c is fixed to the frame 10, the rotating shaft 42 is in transmission connection with an output end of the rotary actuator 30c, and the rotary actuator 30c is preferably in transmission connection with the rotating shaft 42 through a reducer (not shown in the figures) to enable the rotating shaft 42 to obtain a desired rotation speed and torque. The first rotating arm 43 is positioned and sleeved at the left end of the rotating shaft 42, and the second rotating arm 44 is positioned and sleeved at the right end of the rotating shaft 42; the first positioning sleeve 45a and the second positioning sleeve 45b are both sleeved on the rotating shaft 42, the first positioning sleeve 45a is located between the right side of the first rotating arm 43 and the left side of the pivot mounting seat 41, and the second positioning sleeve 45b is located between the left side of the second rotating arm 44 and the right side of the pivot mounting seat 41. Preferably, in the present embodiment, a first positioning groove 431 is formed on the right side of the first rotating arm 43 for positioning the first positioning sleeve 45a to prevent the first positioning sleeve 45a from sliding; a second positioning groove 441 for positioning the second positioning sleeve 45b is formed on the left side of the second rotating arm 44 to prevent the second positioning sleeve 45b from sliding. The locking screw 46 horizontally penetrates the rotating shaft 42, the first blocking piece 47a is sleeved at the left end of the locking screw 46, the first nut 48a is in threaded connection with the left end of the locking screw 46, and the first blocking piece 47a is located between the left side of the rotating shaft 42 and the right side of the first nut 48 a. The second blocking piece 47b is sleeved at the right end of the locking screw 46, the second nut 48b is screwed at the right end of the locking screw 46, and the second blocking piece 47b is located between the right side of the rotating shaft 42 and the left side of the second nut 48 b. The first positioning sleeve 45a and the first blocking piece 47a increase the clamping force on the first rotating arm 43, and the second positioning sleeve 45b and the second blocking piece 47b increase the clamping force on the second rotating arm 44, so that the first rotating arm 43 and the second rotating arm 44 are more stably mounted. Moreover, by the quick screwing connection of the first nut 48a and the second nut 48b, the clamping effect of the quick assembly and disassembly of the first rotating arm 43 and the second rotating arm 44 can be achieved. The first nut 48a and the second nut 48b are preferably anti-loose nuts, so that the locking structure is more stable and is not easy to loosen.

Preferably, in the present embodiment, a first positioning boss 421 is formed at the left end of the rotating shaft 42, a first positioning hole 433 is formed on the first rotating arm 43, and the first positioning hole 433 is positioned and sleeved on the first positioning boss 421; the right end of the rotating shaft 42 is formed with a second positioning protrusion 422, the second rotating arm 44 is formed with a second positioning hole 443, and the second positioning hole 443 is positioned and sleeved on the second positioning protrusion 422. The first positioning convex column 421 and the first positioning hole 433 are positioned in a polygonal matching manner, the second positioning convex column 422 and the second positioning hole 443 are also positioned in a polygonal matching manner, the number of the polygonal sides can be adjusted according to different load requirements, the required number of stress surfaces in the transmission process can be obtained, and accordingly the abrasion of parts can be reduced. Preferably, in the present embodiment, the reinforcing ribs 49a are formed on both the left and right sides of the first rotating arm 43 and the left and right sides of the second rotating arm 44, so as to improve the load strength of the first rotating arm 43 and the second rotating arm 44, and the structure is more firm.

alternatively, in this embodiment, the two ends of the first rotating arm 43 and the two ends of the second rotating arm 44 are both fixedly provided with the fixed wheels 49b, so that the first rotating arm 43 and the second rotating arm 44 can drive the fixedly provided fixed wheels 49b to rotate together to realize the stair climbing action. Of course, in other embodiments, the first rotating arm 43 and the second rotating arm 44 may also be selected to be used for driving a link mechanism type stair climbing driven structure to implement the stair climbing action, and the link mechanism type stair climbing driven structure is composed of a plurality of link mechanisms, and the specific structure thereof is well known to those skilled in the art, and therefore, will not be described herein again.

Referring to fig. 1, the electric stair climbing machine 100 further includes an illumination assembly 70, the illumination assembly 70 includes an illumination lamp (not shown) and a lampshade (not labeled in the figure), the illumination lamp is fixed on the front side of the lower end of the frame 10, and the lampshade is fixed to cover the illumination lamp, so as to provide illumination in the dark environment and improve the safety during the use. In this embodiment, the illumination assemblies 70 are disposed on both sides of the frame 10 to expand the illumination range and better satisfy the illumination requirement. Preferably, the electric loading stair climbing machine 100 of the present invention further comprises a mounting beam 80a and a control panel 80b, wherein the mounting beam 80a is horizontally fixed on the frame 10, and the mounting beam 80a is located between the wheel support mechanism 50 and the handle 20; control panel 80b and locate on installation roof beam 80a, control panel 80b electricity and connect in power supply unit 30b, rotary actuator 30c and light on, control panel 80b is last to be provided with the speed adjusting button (not marking in the figure) of control rotary actuator 30c rotational speed, control rotary actuator 30c forward reverse turn to switch over the button (not marking in the figure), control light switch's illumination button (not marking in the figure), control the rotational speed of driver rotational speed through speed adjusting button according to the user demand of reality, control through turning to switch over the button to rotary actuator 30c forward reverse turn to realize corresponding climbing up the building and climbing down the building according to climbing up and down the building demand, close or open the light through the illumination button according to the environment light and shade, and is more convenient to use. The specific structure of the control panel 80b is well known to those skilled in the art, and therefore, will not be described herein.

Referring to fig. 1, the electric stair climbing device 100 further includes an auxiliary handle 90, the auxiliary handle 90 is fixed on the frame 10, and the auxiliary handle 90 is located between the wheel supporting mechanism 50 and the handle 20 to provide the user with a plurality of positions for holding, thereby facilitating the use. Preferably, in the present embodiment, the grip 20 is sleeved with a first silica gel sleeve 211 and a second silica gel sleeve 212 for the user to hold, the second silica gel sleeve 212 is provided with a first start button 213, the auxiliary grip 90 is sleeved with a third silica gel sleeve 91 for the user to hold, the third silica gel sleeve 91 is provided with a second start button 92, and the first start button 213 and the second start button 92 are electrically connected to the power supply device 30b and the rotary driver 30 c. Pressing one of the first start button 213 and the second start button 92 starts the rotary driver 30c to drive the stair climbing actuator 40 to start operation; when the first start button 213 and the second start button 92 are released, the rotation of the rotary actuator 30c is stopped, and the stair climbing actuator 40 is stopped at the same time, so that the operation is more convenient, safe and reliable. Optionally, in this embodiment, the fourth silicone sleeve 641 is also sleeved on the fixing connection tube 64 for the user to hold, so that the user can hold more comfortably.

Please continue to refer to fig. 1, the utility model discloses an electronic year thing machine of climbing building 100 still includes the exhibition and receipts layer board 30d and fixed layer board 30e, exhibition and receipts layer board 30d is the dorsal part of locating the frame 10 lower extreme that can expand and receive the adjustment, exhibition and receipts layer board 30d has one and folds up in the folding position of frame 10 and one and expand in the bearing position of frame 10, when not using exhibition and receive layer board 30d, can rotate exhibition and receive layer board 30d to the folding position of folding up in frame 10, when needs use exhibition and receive layer board 30d, can rotate exhibition and receive layer board 30d to the bearing position of expanding in frame 10 and load the goods. The fixing support plate 30e is fixed on the back side of the frame 10, the fixing support plate 30e is located above the folding and unfolding support plate 30d, and the width of the fixing support plate 30e is larger than that of the frame 10, so that the bearing surface of the goods is increased, the goods with large bearing volume can be conveniently borne, and the frame 10 can be better protected.

The working principle of the electric stair climbing machine 100 of the present invention is explained in detail with reference to the accompanying drawings:

When the stair climbing action is carried out to needs, first-selected, pass through speed regulation button adjustment driver to required rotational speed according to the user demand of reality, climb up the building or reverse down the building for corotation through turning to switching button adjustment rotary driver 30c according to the building demand of climbing from top to bottom to and close or open the light through the illumination button according to the environment light and shade.

The utility model discloses an electronic year thing machine of climbing building 100 inclines, presses one of first start button 213 and second start button 92 again, starts rotary actuator 30c and drives first swinging boom 43 and the second swinging boom 44 that climbs building actuating mechanism 40 and begin to rotate the operation, can realize that electronic year thing machine of climbing building 100 carries out stair and climbs the building.

When needs are walked on the level ground, the action bars 525 through operation locking assembly 52 locks first bracing piece 5111 and second bracing piece 5112 of supporting wheel subassembly 51 in the support position to screw the lock 632 through rotating and adjust the position and the locking of handle 20 to perpendicular to frame 10, frame 10 is put to the level, and wheel 30a and supporting wheel subassembly 51 can walk on the level ground simultaneously, make the utility model discloses an electronic year thing machine of climbing 100 adjustment switches to the translation mode as shown in fig. 2, realizes will the utility model discloses an electronic year thing machine of climbing 100 adjusts to walking on the level ground is horizontal, can regard as dull and stereotyped shallow to use.

Compared with the prior art, because the rotating connecting seat 61 and the fixed connecting seat 62 of the folding positioning locking mechanism 60 of the present invention are pivotally connected to each other around an axis, the locking component 63 is associated between the rotating connecting seat 61 and the fixed connecting seat 62, the locking component 63 can selectively lock the rotating connecting seat 61 and the fixed connecting seat 62 to abut against each other and close together or release the locking to release the rotating connecting seat 61 and the fixed connecting seat 62 to be away from each other; a plurality of first positioning clamping parts 611 distributed circumferentially around the axis are formed on one side of the rotating connection seat 61 facing the fixed connection seat 62, a plurality of second positioning clamping parts 621 distributed circumferentially around the axis are formed on one side of the fixed connection seat 62 facing the rotating connection seat 61, and the first positioning clamping parts 611 and the second positioning clamping parts 621 can be detachably clamped and positioned to be matched with each other; when the locking assembly 63 locks the rotating connection seat 61 and the fixed connection seat 62 to abut against each other and close together, the first positioning engaging portion 611 and the second positioning engaging portion 621 are engaged with each other for positioning; when the locking assembly 63 releases the lock and releases the rotating connection seat 61 and the fixed connection seat 62 to move away from each other, the first positioning engaging portion 611 and the second positioning engaging portion 621 are disengaged from each other. Then, when the locking assembly 63 locks the rotating connection seat 61 and the fixed connection seat 62 to abut against each other and close together, the structure in which the first positioning engaging portion 611 and the second positioning engaging portion 621 are engaged with each other to position can ensure that the locking and positioning between the rotating connection seat 61 and the fixed connection seat 62 are stable and firm, prevent the sliding between the rotating connection seat 61 and the fixed connection seat 62, and avoid safety accidents during use; when the locking assembly 63 releases the lock and releases the rotating connection seat 61 and the fixed connection seat 62 to be away from each other, the first positioning clamping part 611 and the second positioning clamping part 621 are separated from each other, so that the rotating connection seat 61 and the fixed connection seat 62 can be operated to rotate to a required position, the occupied space is reduced, and the storage and the transportation are convenient; therefore, the folding positioning locking mechanism 60 has the advantages of simple structure, convenient folding and stable and firm locking and positioning. Because the utility model discloses an electronic year thing machine of climbing building 100 has the utility model discloses a folding location locking mechanical system 60, the event the utility model discloses an electronic year thing machine of climbing building 100 also has simple structure, can conveniently fold and the stable firm advantage of locking location.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims (10)

1. A folding positioning locking mechanism is characterized by comprising a rotating connecting seat, a fixed connecting seat and a locking assembly, wherein the rotating connecting seat and the fixed connecting seat are mutually pivoted around an axial line; a plurality of first positioning clamping parts which are circumferentially distributed around the shaft axis are formed on one side of the rotating connecting seat facing the fixed connecting seat, a plurality of second positioning clamping parts which are circumferentially distributed around the shaft axis are formed on one side of the fixed connecting seat facing the rotating connecting seat, and the first positioning clamping parts and the second positioning clamping parts can be detachably clamped, positioned and matched with each other; when the locking assembly locks the rotating connecting seat and the fixed connecting seat to mutually abut and close together, the first positioning clamping part and the second positioning clamping part are mutually clamped and positioned; when the locking assembly releases the lock and loosens the rotating connecting seat and the fixed connecting seat to be away from each other, the first positioning clamping part and the second positioning clamping part are separated from each other.

2. A fold positioning and locking mechanism as recited in claim 1, wherein one of said first and second positioning engaging portions is a ball-shaped protrusion and the other of said first and second positioning engaging portions is a ball-shaped recess releasably engageable with said ball-shaped protrusion.

3. A folding positioning locking mechanism as claimed in claim 1 wherein said locking assembly includes a locking bar, said locking bar passing through both said rotatable connecting base and said stationary connecting base.

4. A folding positioning locking mechanism as claimed in claim 3, wherein said rotating connecting seat is provided with a first through hole, said fixed connecting seat is provided with a second through hole, and said locking rod is inserted into said first through hole and said second through hole with a gap therebetween.

5. A fold detent lock mechanism according to claim 3, wherein a stop cap is formed at one end of said lock lever.

6. A fold positioning and locking mechanism as recited in claim 5, wherein said locking assembly further comprises a twist lock knob threadably connected to an end of said locking bar remote from said stop cap, said rotatable connector base and said stationary connector base being disposed between said stop cap and said twist lock knob.

7. A folding positioning and locking mechanism as claimed in claim 6, wherein a limiting groove is formed on a side of the rotating connecting seat away from the fixed connecting seat, and the limiting cap is circumferentially positioned and engaged in the limiting groove.

8. A folding positioning and locking mechanism as claimed in claim 6, wherein a limiting groove is formed on a side of the fixed connecting seat away from the rotating connecting seat, and the limiting cap is circumferentially positioned and engaged in the limiting groove.

9. An electric loading stair climbing machine comprises a frame, a handle, wheels, a power supply device, a rotary driver and a stair climbing executing mechanism, wherein the wheels are horizontally pivoted at the lower end of the frame; the stair climbing machine executing mechanism is arranged at the lower end of the frame and is in transmission connection with the output end of the rotary driver; characterized in that the electric loading stair climbing machine further comprises a folding, positioning and locking mechanism according to any one of claims 1 to 8, the fixed connecting seat is fixedly connected to the upper end of the frame, and the handle is fixedly connected to the rotating connecting seat.

10. The electric stair climbing machine with loading material according to claim 9, further comprising an illumination assembly, wherein the illumination assembly comprises an illumination lamp and a lampshade, the illumination lamp is fixedly arranged at the front side of the lower end of the frame, and the lampshade is fixedly covered on the illumination lamp.