CN213141084U - 8-shaped track structure for step - Google Patents

Abstract

The utility model relates to an 8-shaped track frame for a step ladder, which is arranged on the step ladder and is used for transporting objects, comprising a hauling rope, a power source, a track and a bracket; one of the two groups of rails is obliquely erected at the lower layer platform and the rest platform of the step ladder; the other track is obliquely erected at the rest platform and the upper platform; the two ends of each group of tracks are respectively provided with a fixed pulley and a base, and the hauling ropes are wound on the fixed pulleys, the tracks and the power source in an 8-shaped structure; a bracket is fixedly arranged on the hauling rope in each group of track rails and reciprocates along the track rails under the dragging of the hauling rope; the power source drives the hauling rope to realize the transportation of the object between the lower platform and the upper platform. The utility model discloses a "8" word track framework because the towline adopts "8" word winding fixed pulley, compares with prior art, has the linkage nature, only uses a power supply can realize the upper and lower floor transportation of turning back of object, has reduced the cost of step transportation equipment.

Description

8-shaped track structure for step

Technical Field

The utility model relates to a stair conveying equipment technical field especially relates to a "8" word track framework for step ladder.

Background

In the existing device for conveying the stairs on the upper floor and the lower floor of the multi-storey house, the structure design of a hoisting rope track is common. The dragging rope pulls the rotating track to be approximately oblate, so that the track is in a 0-shaped track structure. The problem of the 0 track structure is that: because the escalator can only run along a straight line and obliquely, if the direction is changed, a group of 0-shaped track frame is additionally arranged, and a power source is added, the cost of the escalator conveying equipment is increased.

It is therefore desirable to provide a low cost "8" track structure that can be used in a step ladder.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the above-mentioned shortcoming, the deficiency of prior art, the utility model provides an "8" word track framework for step ladder, it has solved the technical problem that current stair conveying equipment is with high costs.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

the embodiment of the utility model provides an "8" word track framework for step, install on the step for transport the object, including towline, power supply, two sets of isometric track and bracket, including towline, power supply, two sets of track and bracket;

one of the two groups of rails is obliquely erected at the lower layer platform and the rest platform of the step ladder; the other track is obliquely erected at the upper-layer platform and the rest platform; the two ends of each group of tracks are respectively provided with a fixed pulley and a fixed pulley base, and the hauling rope is wound on the fixed pulley in an 8-shaped structure;

each group of tracks is also provided with a bracket which reciprocates along the tracks under the dragging of the hauling rope;

the hauling rope is driven by the power source to realize the transportation of the object between the lower platform and the upper platform.

Optionally, the fixed pulleys comprise a first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley, the first fixed pulley is installed at a position where the track is close to the lower-layer platform, the second fixed pulley and the third fixed pulley are installed at a position where the track is close to the resting platform, and the fourth fixed pulley is installed at a position where the track is close to the upper-layer platform;

one end of the hauling rope sequentially rounds the first fixed pulley, the second fixed pulley, the fourth fixed pulley and the third fixed pulley and is connected with the other end of the hauling rope to form an 8-shaped framework in a closed mode, the power source is connected with the hauling rope in a winding mode to pull the hauling rope, and objects are conveyed between the lower-layer platform and the upper-layer platform through the object supporting frame connected with the hauling rope.

Optionally, the hauling ropes in the tracks between the first fixed pulley and the second fixed pulley and between the third fixed pulley and the fourth fixed pulley are in a linear tightening state and are respectively connected with the brackets arranged at the inner sides of the two groups of tracks.

Optionally, the 8-shaped track structure further includes a spring sleeve, the spring sleeve is disposed between the first fixed pulley and the power source, between the power source and the third fixed pulley, and between the second fixed pulley and the fourth fixed pulley, the hoisting rope penetrates through the spring sleeve, the spring sleeve is not disposed on the hoisting rope inside the track, and the spring sleeve is sleeved on the external hoisting rope to protect the hoisting rope.

Optionally, a grease is disposed inside the spring sleeve to reduce frictional resistance between the hoist rope and an inner wall of the spring sleeve.

Optionally, the 8-shaped track structure further comprises a base through which the fixed pulley is mounted on the track, and a sleeve cap provided at both ends of the spring sleeve for preventing grease leakage and dust from entering the inside of the spring sleeve, and the spring sleeve is mounted on the base through the sleeve cap.

Optionally, the spring sleeve is non-stretchable and non-compressible in a length direction for limiting the stretching and compressing of the length direction of the hoist rope.

Optionally, the power source is connected with a hoisting rope exposed outside the track and outside the spring sleeve in a winding manner, the winding connection part of the hoisting rope and the power source is not sleeved with the spring sleeve, the end part of the spring sleeve is respectively connected with the inlet end and the outlet end of the power source rack through sleeve caps, the exposed hoisting rope enters the inside of the power source and is connected with a main shaft or a variable speed wheel of the power source in a winding manner, and the main shaft or the variable speed wheel pulls the hoisting rope through friction force.

Optionally, the power source is a variable speed motor or a combination of a motor and a speed reducer, and the variable speed motor or the motor is powered by direct current or alternating current.

Optionally, the two sets of rails are mounted at the lower end positions of the stair railing rails or at the lower end positions of the stair side walls.

(III) advantageous effects

The utility model has the advantages that: the utility model discloses a "8" word track framework for step, because towline 5 adopts "8" word winding first fixed pulley 1, second fixed pulley 2, third fixed pulley 3 and fourth fixed pulley 4, for prior art, it has the linkage nature, only uses a power supply 13 can realize the upper and lower floor of object and turn back the transportation, has reached the technological effect that reduces step transportation equipment cost.

Drawings

Fig. 1 is a schematic front view of an 8-shaped track structure for a step ladder according to embodiment 1 of the present invention;

FIG. 2 is a left side view of the 8-track architecture of FIG. 1;

fig. 3 is a schematic connection diagram of the first fixed pulley 1 and the base 7 in fig. 1;

FIG. 4 is a schematic view of the assembly of the hoist rope 5, the spring sleeve 8 and the sleeve cap 9 of FIG. 1;

FIG. 5 is a schematic view of the power source 13 of FIG. 1 in winding communication with the hoist line 5;

fig. 6 is a left side view of an 8-shaped track structure for a step ladder according to embodiment 2 of the present invention.

[ description of reference ]

1: a first fixed pulley; 2: a second fixed pulley; 3: a third fixed pulley; 4: a fourth fixed pulley; 5: a hoisting rope; 6: a track; 7: a base; 8: a spring sleeve; 9: a casing cap; 10: a lower stage; 11: a resting platform; 12: an upper stage; 13: a power source; 14: a side wall; 15: a bracket.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings. As used herein, the terms "upper," "lower," "left," "right," and the like are used with reference to the orientation of FIG. 1.

Example 1:

referring to fig. 1 and 2, the present embodiment provides an 8-shaped track structure for a step ladder, which includes a first fixed pulley 1, a second fixed pulley 2, a third fixed pulley 3, a fourth fixed pulley 4, a hoist rope 5, two sets of equal-length tracks 6, two racks 15 and a power source 13. The object supporting frame 15 can be a carrying platform or a passenger platform, the passenger platform includes an armrest and a pedal, and if the object carrying platform is the carrying platform, a transfer device is further arranged at the position of the resting platform 11 for transferring objects. The carrier 15 may also be foldable for reducing the space occupied by the stairs. The bracket 15 is connected with the hauling ropes 5 at the inner sides of the two groups of equal-length rails 6, and the bracket 15 is driven by the hauling ropes 5 to reciprocate. First fixed pulley 1, second fixed pulley 2, third fixed pulley 3 and fourth fixed pulley 4 are installed and are close stair railing lower extreme position at the track, specifically, first fixed pulley 1 sets up and is close lower floor's platform 10 position department at track 6, and second fixed pulley 2 and third fixed pulley 3 set up and are close 11 position departments of half space at track 6, and fourth fixed pulley 4 sets up and is close upper platform 12 position department at track 6.

A group of rails 6 are respectively arranged between the first fixed pulley 1 and the second fixed pulley 2 and between the third fixed pulley 3 and the fourth fixed pulley 4, and a bracket 15 connected with the hauling rope 5 is also arranged at each group of rails 6. One end of the hauling rope 5 firstly passes through the first fixed pulley 1, secondly passes through the second fixed pulley 2, thirdly passes through the fourth fixed pulley 4, lastly passes through the third fixed pulley 3, is connected with the other end of the hauling rope 5, and is closed to form an 8-shaped framework. The hauling ropes 5 between the first fixed pulley 1 and the second fixed pulley 2 and between the third fixed pulley 3 and the fourth fixed pulley 4 are respectively arranged at the inner sides of the two groups of tracks 6, the part of the hauling ropes 5 are in a linear tightening state and are connected with the bracket 15, and objects are conveyed from the lower layer platform 10 to the upper layer platform 12 through the bracket 15. One of the two article holders 15 is mounted on the lowermost end of the rail 6 between the lower deck 10 and the resting deck 11, and the other article holder 15 is mounted on the uppermost end of the other rail 6 between the resting deck 11 and the upper deck 12.

Referring to fig. 3 and 4, a first fixed pulley 1, a second fixed pulley 2, a third fixed pulley 3, and a fourth fixed pulley 4 are respectively mounted on both ends of two sets of equal-length rails 6 through a base 7. Spring sleeves 8 are sleeved outside the portions of the hoisting ropes 5 between the first fixed pulley 1 and the third fixed pulley 3 and between the second fixed pulley 2 and the fourth fixed pulley 4 for protecting the exposed hoisting ropes 5. The spring sleeve 8 is filled with grease to reduce frictional resistance. Both ends of the spring sleeve 8 are provided with sleeve caps 9, and the sleeve caps 9 can prevent lubricating grease from leaking and prevent dust from entering the spring sleeve 8. At the same time the spring bushing 8 can also be mounted on the base 7 by means of a bushing cap 9, the spring bushing 8 being non-stretchable and compressible for the hoist rope 5, the hoist rope 5 being tight in relation to the spring bushing 8, the spring bushing 8 only limiting the stretching and compression in the length direction of the hoist rope 5, there being no stiffness in the other directions, so that the hoist rope 5 appears loose and easy to arrange.

The power source 13 may be a motor and speed reducer combination, or may be a variable speed motor, which may be powered by direct current or alternating current. The power source 13 can be arranged between the first fixed pulley 1 and the third fixed pulley 3 or between the second fixed pulley 2 and the fourth fixed pulley 4, and the installation position is not in the way of preventing the pedestrians from normally getting on or off the stairs. The power source 13 is winded and connected with a part of the hoist rope 5 between the first fixed pulley 1 and the third fixed pulley 3 or between the second fixed pulley 2 and the fourth fixed pulley 4, and is used for driving the hoist rope 5 to rotate. Referring to fig. 5, the winding connection part of the hoist rope 5 and the power source 13 is not provided with a spring sleeve 8, the end part of the spring sleeve 8 is respectively connected with the inlet end and the outlet end of the frame of the power source 13 through a sleeve cap 9, the exposed hoist rope 5 enters the inside of the power source 13 to be wound and connected with a main shaft or a change gear of the power source 13, and the main shaft or the change gear drives the hoist rope 5 through friction. The number of the spring sleeves 8 is three, the spring sleeves are respectively sleeved on the outer surfaces of the hoisting rope 5 between the first fixed pulley 1 and the power source 13, the hoisting rope 5 between the power source 13 and the third fixed pulley 3 and the hoisting rope 5 between the second fixed pulley 2 and the fourth fixed pulley 4, and sleeve caps 9 are arranged at two ends of each spring sleeve 8.

Example 2:

referring to fig. 6, the present embodiment provides another "8" track structure for a step, on the basis of embodiment 1, the installation positions of the first fixed pulley 1, the second fixed pulley 2, the third fixed pulley 3, the fourth fixed pulley 4 and the two sets of tracks 6 are changed to be installed at the lower end position of the stair sidewall 14, and at the same time, a simple handrail is added on the stair sidewall 14, and the length of the hoist rope 5 is properly extended. The part of the hoisting ropes 5 between the first fixed sheave 1 and the third fixed sheave 3 and between the second fixed sheave 2 and the fourth fixed sheave 4 is arranged against the wall surface of the side wall 14. The power source 13 is preferably mounted at the corner of the resting platform 11 so as not to prevent the pedestrians from going up and down the stairs normally.

The utility model discloses a working process that is used for "8" word track framework of step ladder: when going upstairs, the power source 13 is started to pull the hauling rope 5, the object positioned at the lower platform 10 is conveyed to the point B at the upper end of the lower track 6 by the object support frame 15 at the point A at the lower end of the lower track 6, and then the object is transferred to the rest platform 11; at this time, the article support rack 15 at the point D of the upper end of the upper layer track 6 in the linkage state moves to the point C of the lower end of the upper layer track 6 at equal distance; when an object moves from the rest platform 11 to the object support frame 15 at the point C at the lower end of the upper-layer track 6, the power source 13 is started reversely again to drive the hauling rope 5 to run, the object is conveyed back from the point C at the lower end of the upper-layer track 6 to the point D at the upper end of the upper-layer track 6, and finally the object is transferred to the upper-layer platform 12, and meanwhile, the object support frame 15 at the point B moves back to the point A with equal length under the linkage action. Similarly, when going downstairs, the running track of the hauling rope 5 is unchanged, and the object is conveyed from the point D to the point C by the object support frame 15 and then conveyed from the point B to the point A. Thus, the purpose of going upstairs and downstairs transportation is achieved.

The utility model discloses a "8" word track framework for step, because towline 5 adopts "8" word winding first fixed pulley 1, second fixed pulley 2, third fixed pulley 3 and fourth fixed pulley 4, for prior art, it has the linkage nature, can only use a power supply 13 can realize the transportation of turning back of the upper and lower floor of object, has reached the technological effect that reduces step transportation equipment cost.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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

Claims (10)

1. An "8" track structure for a stairway, mounted on the stairway, for transporting objects, characterized in that: comprises a hauling rope (5), a power source (13), two groups of tracks (6) with equal length and a bracket (15);

one of the two groups of rails (6) is obliquely erected at the lower layer platform (10) and the rest platform (11) of the step ladder; the other track (6) is obliquely erected at the upper-layer platform (12) and the rest platform (11); the two ends of each group of tracks (6) are respectively provided with a fixed pulley and a fixed pulley base (7), and the hauling rope (5) is wound on the fixed pulley in an 8-shaped structure;

a lifting rope in each group of track rails (6) is also provided with a bracket (15), and the bracket (15) reciprocates along the track rails (6) under the dragging of the lifting rope (5);

the hauling rope (5) is driven by the power source (13) to realize the transportation of the object between the lower layer platform (10) and the upper layer platform (12).

2. The "8" word track architecture of claim 1, wherein: the fixed pulleys comprise a first fixed pulley (1), a second fixed pulley (2), a third fixed pulley (3) and a fourth fixed pulley (4), the first fixed pulley (1) is installed at the position, close to a lower-layer platform (10), of a track (6), the second fixed pulley (2) and the third fixed pulley (3) are installed at the position, close to a resting platform (11), of the track (6), and the fourth fixed pulley (4) is installed at the position, close to an upper-layer platform (12), of the track (6);

one end of the hauling rope (5) sequentially rounds the first fixed pulley (1), the second fixed pulley (2), the fourth fixed pulley (4) and the third fixed pulley (3) and is connected with the other end of the hauling rope (5) to form an 8-shaped framework in a closed mode, the power source (13) is connected with the hauling rope (5) in a winding mode and used for hauling the hauling rope (5), and the object is conveyed between the lower-layer platform (10) and the upper-layer platform (12) through the object support (15) connected with the hauling rope (5).

3. The "8" word track architecture of claim 2, wherein: the hauling ropes (5) in the tracks (6) between the first fixed pulley (1) and the second fixed pulley (2) and between the third fixed pulley (3) and the fourth fixed pulley (4) are in a linear tightening state and are respectively connected with the object holders (15) arranged on the inner sides of the two groups of tracks (6).

4. The "8" word track architecture of claim 2, wherein: the 8-shaped framework further comprises spring sleeves (8), the spring sleeves (8) are arranged between the first fixed pulley (1) and the power source (13), between the power source (13) and the third fixed pulley (3) and between the second fixed pulley (2) and the fourth fixed pulley (4), the hoisting rope (5) penetrates through the spring sleeves (8), the hoisting rope (5) inside the track is not provided with the spring sleeves (8), and the outside hoisting rope (5) is sleeved with the spring sleeves (8) and used for protecting the hoisting rope (5).

5. The "8" word track architecture of claim 4, wherein: lubricating grease is arranged inside the spring sleeve (8) and used for reducing the friction resistance between the hauling rope (5) and the inner wall of the spring sleeve (8).

6. The "8" word track architecture of claim 4, wherein: the 8-shaped framework further comprises a base (7) and a sleeve cap (9), the fixed pulley is installed on the track (6) through the base (7), the sleeve caps (9) are arranged at two ends of the spring sleeve (8) and used for preventing lubricating grease from leaking and preventing dust from entering the spring sleeve (8), and the spring sleeve (8) is installed on the base (7) through the sleeve cap (9).

7. The "8" word track architecture of claim 6, wherein: the spring sleeve (8) is non-stretchable and non-compressible in the length direction for limiting the stretching and compression in the length direction of the hoisting rope (5).

8. The "8" word track architecture of claim 6, wherein: the power source (13) is connected with the hoisting rope (5) exposed outside the track (6) and outside the spring sleeve (8) in a winding mode, the spring sleeve (8) is not required to be sleeved on the winding connection portion of the hoisting rope (5) and the power source (13), the end portion of the spring sleeve (8) is connected with the inlet end and the outlet end of the rack of the power source (13) through a sleeve cap (9), the exposed hoisting rope (5) enters the power source (13) to be connected with a main shaft or a variable speed wheel of the power source (13) in a winding mode, and the main shaft or the variable speed wheel pulls the hoisting rope (5) through friction force.

9. The "8" word track architecture of claim 8, wherein: the power source (13) is a variable speed motor or a combination of the motor and a speed reducer, and the variable speed motor or the motor adopts direct current or alternating current for power supply.

10. The "8" word track architecture of any one of claims 1-9, wherein: the two groups of rails (6) are arranged at the lower end of the hand rails of the stair or at the lower end of the side wall (14) of the stair.

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