CN219384392U - Low installation space rope end combination system for lifting height of home elevator car - Google Patents

Abstract

The utility model discloses a rope head combination system with low installation space for lifting the height of a home elevator car, which comprises a steel wire rope penetrating through a group of fixed pulleys at the top of the elevator car, wherein one end of the steel wire rope is connected with a traction machine, and the other end of the steel wire rope is connected with a rope head combination; at least one group of tensioning mechanisms is arranged between two adjacent fixed pulleys in the group of fixed pulleys on the top of the car, or at least one pair of tensioning mechanisms is arranged between the adjacent fixed pulleys. The elevator has the advantages of convenient installation and maintenance, reduced requirement of the elevator on the top space, higher elevator car manufacturing with the same top height, improved riding comfort, and being particularly suitable for the working condition that the household elevator well is a pitched roof and the like and has limited height space.

Description

Low installation space rope end combination system for lifting height of home elevator car

Technical Field

The utility model relates to an elevator structure technology, in particular to a rope end combination system with low installation space for lifting the height of a home elevator car.

Background

When the vertical lifting elevator is used, the hoisting ropes for pulling the elevator car are generally connected through rope head combinations, and the design of the rope head combinations is related to the safety of the elevator. The deviation of the tension of the hoisting wire rope from the average value should be specified to be not more than 5% in the elevator inspection and detection regulations. If the stress of the steel wire rope is stabilized without the steel wire rope terminating device, uneven abrasion of the traction sheave by the steel wire rope can be caused, and the traction capacity of the elevator is affected. Meanwhile, the tension of the steel wire rope can be adjusted through the rope head combination, and the elevator can be ensured to work in a good traction state no matter in new installation or daily maintenance.

The existing rope end combination is basically arranged in a vertical seat on the same line with the hanging steel wire rope: for example, the patent publication number CN108483185a, an elevator rope head assembly, which comprises a taper sleeve and a rope head pull rod, wherein a wedge block is arranged in the front part of the taper sleeve, two side plate walls of the front part of the taper sleeve are approximately wedge-shaped, and the top of the taper sleeve forms an arc top which is continuous with two side wall and is in an integral structure. As another example, the patent publication No. CN114162696a discloses an elevator rope end combination, which comprises a rope end pull rod, a buffer structure and a taper sleeve, wherein the buffer structure comprises a buffer block arranged on the rope end pull rod and a sleeve sleeved outside the buffer block, a cavity is arranged in the sleeve, a plurality of first solenoids with upward pipe openings are arranged in the buffer block, a second solenoid with upward pipe openings is arranged at the position above the corresponding first solenoids on the sleeve, and a third solenoid with upward pipe openings is arranged at the position below the corresponding first solenoids, when the first solenoids, the second solenoids and the third solenoids are electrified, the magnetic poles of the pipe openings of the first solenoids are opposite to the magnetic poles of the pipe openings of the second solenoids, and the magnetic poles of the pipe openings of the first solenoids are opposite to the magnetic poles of the pipe openings of the third solenoids, so that the traction rope is buffered in a magnetic suspension manner by electrifying the first solenoids, the second solenoids and the third solenoids.

In home elevators, especially some inclined roofs, the overhead space of the elevator hoistway is very limited, and often other components than the hoisting machine are difficult to arrange, as is conventional with such rope head combinations, there are problems with interference with the hoisting machine installation, or inability to adjust the tightness of the wire rope, etc., or lowering the car height or destroying the original building elements to leave necessary installation and maintenance space, which is of course undesirable.

Disclosure of Invention

The utility model aims to solve the problems and provide a rope head combination system with low installation space for improving the height of a home elevator car, which has the characteristics of reducing the requirement of an elevator on a top floor space or enabling the elevator car to be made higher by the same top floor height and the like.

The technical problems of the utility model are mainly solved by the following technical proposal: the rope head combination system is characterized by comprising a sheath, wherein the upper end of the sheath is provided with a hanging body, and a wedge-shaped block for fixing the steel rope is arranged in the sheath; at least one group of tensioning mechanisms is arranged between two adjacent fixed pulleys in the group of fixed pulleys on the top of the car, or at least one pair of tensioning mechanisms is arranged between the adjacent fixed pulleys.

In the low installation space rope end combination system for lifting the height of the home elevator car, preferably, the sheath is a symmetrical body taking the central line of the hanging steel wire rope as a symmetrical central line, a wedge block accommodating space is arranged in the sheath, and the wedge blocks are symmetrically arranged with the symmetrical central line.

In the aforementioned rope end combination system with low installation space for lifting the height of the home elevator car, preferably, the wedge block has a reverse cone structure with a large upper part and a small lower part, the top is a cambered surface, and the bottom end of the wedge block penetrates through the sheath and is provided with a stop pin.

In the aforementioned rope end combination system with low installation space for lifting the height of the home elevator car, preferably, the tensioning mechanism comprises a stabilizing frame fixed at the top of the car, a tensioning wheel is arranged in the stabilizing frame, and the tensioning wheel is controlled to move up and down by a manual adjusting mechanism.

In the aforementioned low installation space rope end combination system for lifting the height of the home elevator car, preferably, the manual adjusting mechanism comprises an adjusting rod, a spring is arranged on the adjusting rod, a clamping head for clamping the tensioning wheel is arranged at one end of the adjusting rod, a mandrel is arranged at the center of the tensioning wheel, and the clamping head is located in the stabilizing frame.

In the aforementioned rope end combination system with low installation space for lifting the height of the home elevator car, preferably, two ends of the mandrel extend out of the clamping head, and two ends of the mandrel are matched with the guide grooves arranged on the stabilizing frame.

In the aforementioned rope head combination system with low installation space for lifting the height of the home elevator car, preferably, the suspension body is a fixed shaft structure, or a hole-chain rope combination structure, or a plate-plate bolt combination structure.

In the aforementioned low installation space rope hitch system for hoisting the height of a home elevator car, preferably the total height of the tensioning mechanism is lower than the total height of the fixed sheave.

The technical scheme is designed on the basis of the existing rope end combination, the running length of the steel wire rope penetrating through the fixed pulley at the top of the car is taken as a control object, and as one end of the steel wire rope is connected with the traction machine and cannot be changed, a suspension type rope end combination is designed in a limited space. The hanging rope end combination mainly meets the following conditions: firstly, the system is safe, namely, all components must meet the structural strength requirement; secondly, the requirements of simple and quick field assembly and installation technology are met; and thirdly, the low installation space requirement of the inclined roof of the home decoration elevator is met.

The device uses the side derrick or the guide rail of the elevator shaft as a suspension fulcrum of the rope head combination, so that all parts of the rope head combination are lower than the top end of the derrick or the guide rail, and the device is used for injecting: the top end of the derrick or the guide rail is the highest point in the elevator shaft, so that the upper part of the rope head combination can directly prop against a sloping roof or other limited space lower limits. The rope head combination takes the sheath as an upper connector and a lower connector, the hanging body at the top end of the rope head combination is positioned at the upper limit of the hanging auxiliary frame, and the steel wire rope which is vertically and downwards arranged is fixed by the sheath and the embedded wedge-shaped block.

On the basis of ensuring that the rope head combination has enough connection strength to the steel wire rope, a tensioning mechanism is arranged between the fixed pulleys on the top of the lift car, and the tension of the steel wire rope is adjusted by the tensioning mechanism by utilizing the height space occupied by the fixed pulleys on the top of the lift car.

Further, the tensioning mechanism of the system is matched with two adjacent fixed pulleys on the top of the car, and the trend of the steel wire ropes of the two adjacent fixed pulleys is tensioned when passing through the tensioning mechanism. The tensioning mechanism uses the car framework as a support like the fixed pulley, is similar to the fixed pulley in installation and maintenance, has high structural strength and large operation space, and is convenient in daily safety maintenance.

Still further, the height of straining device is than fixed pulley height low in this device, does not need to occupy car altitude space in addition, adopts manual adjustment mechanism, once only adjusts in place when the installation, also can carry out the disposable in place adjustment of wire rope tension when maintenance or periodic maintenance at every turn, and members such as regulation pole, spring, take-up pulley constitute and guarantee its sufficient structural strength and life.

The sheath and the wedge block in the device are symmetrical bodies, the central line of the suspended steel wire rope is a symmetrical central line, the natural vertical of the suspended steel wire rope is ensured, and the original technical installation requirement of rope head combination is met.

In addition, the suspension body in the scheme can select various structural forms according to the field working condition.

Compared with the prior art, the utility model has the beneficial effects that: the suspended rope head combination is designed, the structure of the lift car and the residual capacity of the top space are fully utilized to arrange the steel wire rope tensioning mechanism to jointly form a complete traction system, the installation and maintenance are convenient, the requirement of the lift on the top space is reduced, the same top height can be used for enabling the lift car to be manufactured higher, the riding comfort is improved, and the suspended rope head combination is particularly suitable for working conditions that the household lift well is a pitched roof and the like and has limited height space.

Drawings

Fig. 1 is a schematic diagram of an application example arrangement of the present utility model.

Fig. 2 is a schematic view of a partial enlarged structure at M in fig. 1.

Fig. 3 is a schematic diagram of a rope hitch assembly according to the present utility model.

Fig. 4 is a schematic structural view of an embodiment of a fixed shaft hanger of the present utility model.

Fig. 5 is a schematic diagram showing the structure of the present utility model in comparison with a conventional seat-type rope hitch.

Fig. 6 is a schematic view of a tensioning mechanism arrangement of the present utility model.

Fig. 7 is a schematic view of a tensioning mechanism according to the present utility model.

In the figure: 1. traction machine, 2, car, 3, roof floor, 4, rope head combination, 401, jacket, 402, wedge block, 403, suspension body, 5, suspension auxiliary frame, 6, derrick or guide rail, 7, wire rope, 8, fixed pulley, 9, tensioning mechanism, 901, stabilizer, 902, tensioning wheel, 903, clamping head, 904, adjusting rod, 905, spring, 906, mandrel, 907, tightening nut, 10, reversing wheel, 11, tensioning device.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

In the rope end combination system with low installation space for lifting the height of a home elevator car, a group of fixed pulleys 8 are arranged at the top of the elevator car 2, one end of a steel wire rope 7 is connected with a traction machine 1, and the other end of the steel wire rope is connected with a rope end combination 4 after the middle part bypasses the fixed pulleys 8. The rope head assembly 4 is suspended on a suspension auxiliary frame 5 at the top end of a derrick or a guide rail 6, as shown in fig. 1 and 2, the suspension auxiliary frame 5 is of an unequal-sided channel steel structure, one side of the suspension auxiliary frame is fixed on one side of the derrick or the guide rail 6 facing the wall surface, and then the rope head assembly 4 is fixed from the upper part to one side of the car 2.

The rope head combination 4 has a structure shown in fig. 3 and 4, and comprises a sheath 401, wherein the sheath 401 is formed by connecting two parallel plates, the upper half part is provided with a fixing hole of a hanging body 403, the lower half part is a laterally and peripherally closed flat conical accommodating space, and the flat conical accommodating space is used for assembling a wedge block 402 and a steel wire rope 7 compressed by the wedge block 402. The sheath 401 is a symmetrical body with the central line of the hanging steel wire rope 7 as a symmetrical central line, and the wedge-shaped blocks 402 are symmetrically arranged in the accommodating space with the symmetrical central line. The wedge block 402 is of a plate-type reverse cone structure with a large upper part and a small lower part, the top is an arc surface, and the bottom end of the wedge block penetrates through the sheath 401 and is provided with a backstop pin.

The suspension body 403 arranged at the upper end of the jacket 401 can be designed as follows according to the actual situation of the elevator shaft: if the fixed shaft hanging body is a fixed shaft penetrating through the fixing hole of the hanging body 403 at the upper half part of the sheath 401, the fixed shaft is simultaneously penetrating through the hanging hole on the hanging auxiliary frame 5; such as a hole-chain rope combined structure, namely, the rope end combination 4 is positioned on the suspension auxiliary frame 5 through the matching combination of holes, shafts, chains or steel wire ropes; the plate-plate bolt combined structure can be directly adopted, namely, the fixing holes of the hanging body 403 and the hanging auxiliary frame 5 are in butt joint and matched, and then the hanging auxiliary frame is connected by using a shaft pin or a group of bolts.

Further, a tensioning mechanism 9 is arranged in a group of fixed pulleys 8 on the top of the car 2, and likewise, the installation number of the tensioning mechanism 9 in the scheme can be determined according to the specification of the elevator, and the installation point is mainly selected between two adjacent fixed pulleys, as shown in fig. 6. Namely, one group or two groups of tensioning mechanisms 9 are arranged between two adjacent fixed pulleys; or a set of tensioning means 9 is provided between at least one pair of adjacent fixed pulleys of the plurality of adjacent fixed pulleys.

The tensioning mechanism 9 comprises a stabilizing frame 901 fixed at the top of the car 2, as shown in fig. 7, the stabilizing frame 901 is of a lower opening half-frame structure, guide grooves are formed in the inner sides of vertical plates at two sides, and the stabilizing frame 901 is directly welded to an I-shaped groove at the top of the car in practical application. The stabilizing frame 901 is provided with a tensioning wheel 902, and the tensioning wheel 902 is controlled to move up and down by a manual adjusting mechanism. Specifically, the manual adjustment mechanism includes an adjusting rod 904, a spring 905 is arranged on the adjusting rod 904, the spring 905 is positioned above the stabilizing frame 901, two ends of the spring 905 are provided with pressing springs, a tightening nut 907 is arranged at the top end of the adjusting rod 904, a clamping head 903 for clamping the tensioning wheel 902 is arranged at the lower end of the adjusting rod 904, a mandrel 906 is arranged at the center of the tensioning wheel 902, the clamping head 903 is positioned in the stabilizing frame 901, two ends of the mandrel 906 extend out of the clamping head 903 for a small section, and the small sections at two ends of the mandrel are matched with guide grooves arranged in the stabilizing frame 901. The overall height of the tensioning means 9 is lower than the overall height of the fixed pulley 8.

The height of the tensioning sheave 902 can be adjusted by tightening the nut 907 in the tensioning mechanism 9 at the time of elevator installation or at the time of maintenance after a certain period of use, whereby tension adjustment of the wire rope 7 is performed.

Compared with the traditional seat type rope end combination, as shown in fig. 5, under the condition that the roof floor 3 is not movable and the total height of the elevator shaft is unchanged, compared with the traditional rope end combination system, the embodiment can use more space with H height, and the H height can make the elevator car higher in design, so that the inner cavity is more open. And in the conventional elevator shaft height range, the situation of insufficient top space height can be completely met.

The foregoing embodiments are illustrative of the present utility model, and not intended to be limiting, and any simple structure or the like of the present utility model without departing from the principles of the present utility model is within the scope of the present utility model.

Claims (8)

1. The low installation space rope head combination system for lifting the height of the home elevator car comprises a steel wire rope (7) penetrating through a group of fixed pulleys (8) at the top of the elevator car (2), one end of the steel wire rope is connected with a traction machine (1), and the other end of the steel wire rope is connected with a rope head combination (4), and the low installation space rope head combination system is characterized in that the rope head combination comprises a sheath (401), a hanging body (403) is arranged at the upper end of the sheath, and a wedge-shaped block (402) for fixing the steel wire rope is arranged in the sheath; at least one group of tensioning mechanisms (9) is arranged between two adjacent fixed pulleys in a group of fixed pulleys (8) at the top of the car, or at least one pair of tensioning mechanisms are arranged between the adjacent fixed pulleys.

2. The rope hitch system with low installation space for lifting the height of a home elevator car according to claim 1, wherein the jacket (401) is a symmetrical body with the center line of the hanging wire rope (7) as a symmetrical center line, and the accommodating space of the wedge block (402) is provided in the jacket, and the wedge block is symmetrically arranged with the symmetrical center line.

3. The rope hitch system with low installation space for lifting the height of a home elevator car according to claim 1, wherein the wedge block (402) has a reverse taper structure with a large top and a small bottom, the top is a cambered surface, and the bottom end of the wedge block passes through the jacket (401) and is provided with a backstop pin.

4. The rope hitch system with low installation space for lifting the height of a home elevator car according to claim 1, characterized in that the tensioning mechanism (9) comprises a stabilizing frame (901) fixed on the top of the car (2), in which a tensioning wheel (902) is arranged, which is controlled by a manual adjusting mechanism to move up and down.

5. The rope hitch system with low installation space for lifting the height of a home elevator car according to claim 4, wherein the manual adjustment mechanism comprises an adjustment lever (904) provided with a spring (905), one end of the adjustment lever is provided with a clamping head (903) for clamping a tensioning wheel (902), the center of the tensioning wheel is provided with a mandrel (906), and the clamping head is positioned in a stabilizing frame (901).

6. The low installation space rope hitch system for elevating a height of a home elevator car of claim 5, wherein two ends of the spindle (906) extend beyond the chuck (903) and the two ends of the spindle mate with guide grooves provided on the stabilizer (901).

7. A low installation space rope hitch system for lifting the height of a home elevator car as claimed in claim 1 or 2 or 3, characterized in that the hanging body (403) is a fixed shaft structure, or a hole-chain rope combination structure, or a plate-plate bolt combination structure.

8. A low installation space rope hitch system for hoisting the height of a home elevator car as claimed in claim 1, characterized in that the total height of the tensioning means (9) is lower than the total height of the fixed sheave (8).