CN118753952A - A car bottom structure for improving elevator stability - Google Patents

Abstract

The present invention relates to the technical field related to the structure of elevator car bottom, and discloses a car bottom structure that is convenient for improving the stability of the elevator. The present invention includes a car bottom platform, the upper side of the car bottom platform is provided with a car door sill, and the bottom is provided with a car bottom bracket; a shock absorber is provided between the car bottom platform and the car bottom bracket; the car bottom bracket includes a lower beam and a rectangular frame composed of four bracket frames connected end to end in sequence. The present invention uses the geometric diagonal of the car bottom platform as a reference for the structural design of each car bottom component to perform a symmetrical design, so that the car bottom is subjected to reasonable force and has a stronger bearing capacity; the reinforcing ribs of the car bottom platform are designed by longitudinal and transverse layered superposition, so that the structure of the special-shaped car bottom platform becomes simple, and the difficulty of arranging the shock absorber is reduced, thereby improving the stability, reliability and comfort of the elevator operation; a new type of rubber spring is used to replace the traditional rectangular rubber spring as a shock absorbing mechanism for uniform distribution, and the concentrated force is converted into distributed force.

Description

A car bottom structure for improving elevator stability

Technical Field

The present invention relates to the technical field related to elevator car bottom structures, and in particular to a car bottom structure for improving the stability of an elevator.

Background Art

With the particularity of elevator shaft layout and orientation requirements in buildings on the market, there is an increasing demand for elevator car products that provide two entrance and exit areas at 90 degrees. In order to meet market demand, special-shaped cars such as hexagons and octagons have complex structures and are difficult to process. In order to save construction costs, the size of elevator shafts on the market is getting smaller and smaller, and the size of cars is getting larger and larger. The unreasonable structure also causes the depth of the shaft pit to increase. In short, the utilization rate of the shaft is required to be higher and higher, and the elevator car bottom, as an important component of the elevator, needs to develop a car bottom structure that adapts to the above situation.

In order to meet the unique needs of 90-degree double-way door opening, there are generally quadrilateral, pentagonal, hexagonal, octagonal and other car bottom structures, and the above car bottom structures generally have the following problems:

The quadrilateral structure maximizes the car area, but the shaft size is also required to be large, and the door opening size is limited. It is impossible to take into account the shaft utilization, car area and door opening size at the same time. The quadrilateral structure requires that the car guide rails be arranged outside the rectangular area of the car bottom platform. The components for installing the safety clamp need to extend outward, and the hall door sill must avoid the space occupied by the components. The outer edge of the door opening must be moved to the other side, and the door opening width will be limited, affecting the door opening size. At the same time, the diagonal space occupied by the car guide rails will also become larger, the shaft utilization rate will be reduced, and the construction cost will increase;

The pentagonal structure is similar to the quadrilateral structure, but it also brings another problem. The structure will form an asymmetric structure, causing uneven force, which will bring hidden dangers to the normal operation of the elevator. At the same time, it is difficult to lay out the vibration reduction mechanism of the car bottom.

The hexagonal structure has unreasonable arrangement of car guide rails, which leads to large corner sizes, limited car area and door opening size, reduced shaft utilization, increased construction costs, and difficult layout of the car bottom vibration damping mechanism, making the entire car bottom structure complicated;

The octagonal structure obviously cannot enlarge the car area and door opening size. At the same time, due to the increase in the degree of irregularity, the design and manufacturing difficulty of the car bottom parts increases, the pit depth increases, and the shaft utilization rate is not high, which increases the construction cost. The car bottom vibration reduction mechanism is difficult to lay out, and the car bottom structure becomes complicated. In summary, in order to solve the above problems, a car bottom structure that is convenient for improving the stability of the elevator is proposed.

Summary of the invention

The present invention provides a car bottom structure for improving the stability of an elevator, which solves the problems in the above-mentioned background technology.

The present invention solves the technical problem by adopting the following technical solutions:

A car bottom structure for improving the stability of an elevator comprises a car bottom platform, a car door sill is arranged on the upper side of the car bottom platform, and a car bottom bracket is arranged on the bottom; a shock absorbing member is arranged between the car bottom platform and the car bottom bracket;

The car bottom bracket includes a lower beam and four bracket frames connected end to end in sequence to form a rectangular frame, the rectangular frame is symmetrically indented with the geometric diagonal of the car bottom platform as the center, and one of the diagonals is arranged to coincide with the center line of the lower beam;

The shock absorbing member comprises a plurality of transverse reinforcing ribs arranged at intervals in the car bottom platform and a plurality of longitudinal reinforcing ribs arranged at intervals in sequence, the transverse reinforcing ribs are located below the longitudinal reinforcing ribs, and the transverse reinforcing ribs are arranged vertically in space therebetween, and a plurality of new rubber springs for shock absorbing the car bottom platform are uniformly arranged in sequence on the bottom surface of the transverse reinforcing ribs;

The side of the novel rubber spring away from the transverse reinforcing rib is arranged on the top surface of the car bottom bracket.

Preferably, a plurality of spring installation beams corresponding one-to-one to the transverse reinforcing ribs are provided in the car bottom bracket, and a plurality of installation holes for orderly installation of new rubber springs are provided in the spring installation beams.

Preferably, a compensation chain hanger for enhancing the strength of the car bottom bracket is also provided on the spring mounting crossbeam.

Preferably, a sill bracket is provided between the bottom of the car door sill and the car bottom platform, and the sill bracket is arranged at 90° and is arranged at the elevator entrance and exit door area.

Preferably, a weighing structure for weighing the weight in the elevator car is provided on the longitudinal reinforcing rib in a direction parallel to the center line of the lower beam.

Preferably, the weighing structure includes a switch mounting bracket arranged on the longitudinal reinforcement rib, a weighing switch is arranged in the switch mounting bracket, a weighing trigger device for triggering the weighing switch is symmetrically arranged at the center position of the lower beam, and the weighing trigger device is arranged corresponding to the weighing switch.

Preferably, a plurality of counterweights for adjusting the balance of the car bottom are provided on the frame of the car bottom bracket.

Preferably, a safety clamp and a safety clamp linkage mechanism are provided on the lower beam, and a car guide shoe is provided on the safety clamp.

The advantages and positive effects of the present invention are: the following beneficial effects can be achieved through the above structure;

1. The structural design of each part of the car platform is symmetrically designed based on the geometric diagonal of the car platform, so that the force on the car platform is reasonable and the load-bearing capacity of the car platform is stronger;

2. Use new rubber springs to replace traditional rectangular rubber springs as the shock absorbing mechanism and evenly distribute them, which not only changes the concentrated force into distributed force and improves the force condition, but also saves the need for additional rubber spring anti-jump and anti-failure devices because the new rubber spring's own structure can play a role in preventing jumping and failure;

3. The reinforcement ribs of the car bottom platform adopt a longitudinal and transverse layered superposition design, which simplifies the structure of the special-shaped car bottom platform, reduces the difficulty of arranging vibration damping parts, and improves the stability, reliability and comfort of elevator operation;

4. The car bottom bracket adopts a rectangular structure design and coincides a diagonal line with the center line of the lower beam. The safety clamp and its linkage mechanism are set on the lower beam, which makes the car bottom bracket structure simpler and the layout of the shock absorbing mechanism is also simple. Due to the reasonable structure and clear layers, the size of each component can be reduced, the pit depth is reduced, the manufacturing difficulty is reduced, and the processing cost and construction cost are saved.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic structural diagram of the present invention;

FIG2 is a side view of FIG1;

FIG3 is a schematic diagram of the overall structure of the car bottom bracket in FIG1 ;

FIG4 is a schematic diagram of the bottom structure of the car bottom platform in FIG1 ;

The symbols in the accompanying drawings are described as follows:

1. Car platform; 11. Car door sill; 111. Sill bracket; 12. Car bracket; 121. Longitudinal reinforcement ribs; 122. Transverse reinforcement ribs; 123. Compensation chain hanger; 13. Lower beam; 14. Safety clamp; 141. Safety clamp linkage mechanism; 15. Guide shoe; 16. Car floor plate;

2. Shock absorber; 21. New rubber spring; 211. Spring mounting beam; 212. Cable hanger.

3. Counterweight;

4. Weighing trigger device; 41. Weighing switch; 411. Switch mounting bracket.

DETAILED DESCRIPTION

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

Referring to Figures 1 to 4, with the particularity of the elevator shaft layout and orientation requirements in the buildings on the market, there is an increasing demand for elevator car products that provide two entrance and exit door areas at 90 degrees. In order to meet market demand, special-shaped cars such as hexagons and octagons have complex structures and are difficult to process. In order to save construction costs, the elevator shaft sizes on the market are getting smaller and smaller, and the car size requirements are getting larger and larger. The unreasonable structure also causes the depth of the shaft pit to increase. In short, the utilization rate of the shaft is required to be higher and higher, and the elevator car bottom, as an important component of the elevator, needs to develop a car bottom structure that adapts to the above situation.

In order to meet the unique needs of 90-degree double-way door opening, there are generally quadrilateral, pentagonal, hexagonal, octagonal and other car bottom structures, and the above car bottom structures generally have the following problems:

The quadrilateral structure maximizes the car area, but the shaft size is also required to be large, and the door opening size is limited, and the shaft utilization, car area, and door opening size cannot be taken into account at the same time. The quadrilateral structure requires that the car guide rails be arranged outside the rectangular area of the car bottom platform 1, and the components for installing the safety clamp 14 need to extend outward. The hall door sill must avoid the space occupied by the component, and the outer edge of the door opening must be moved to the other side. The door opening width will be limited, affecting the door opening size. At the same time, the diagonal space occupied by the car guide rails will also become larger, the shaft utilization rate will be reduced, and the construction cost will increase;

The pentagonal structure is similar to the quadrilateral structure, but it also brings another problem. The structure will form an asymmetric structure, causing uneven force, which will bring hidden dangers to the normal operation of the elevator. At the same time, it is difficult to lay out the vibration reduction mechanism of the car bottom.

The hexagonal structure has unreasonable layout of car guide rails, which leads to large corner sizes, limited car area and door opening size, reduced shaft utilization, increased construction costs, and difficult layout of the car bottom vibration damping mechanism, making the entire car bottom structure complicated;

The octagonal structure obviously cannot make the car area and door opening size larger. At the same time, due to the increase in the degree of irregularity, the design and manufacturing difficulty of the car bottom parts increases, the pit depth increases, and the utilization rate of the shaft is not high, which increases the construction cost. The car bottom vibration reduction mechanism is difficult to lay out, and the car bottom structure becomes complicated. In summary, in order to solve the above problems, a car bottom structure that is convenient for improving the stability of the elevator is proposed; it includes a car bottom platform 1, the upper side of the car bottom platform 1 is provided with a car door sill 11, and the bottom is provided with a car bottom bracket 12; a shock absorbing member 2 is provided between the car bottom platform 1 and the car bottom bracket 12;

The car bottom bracket 12 includes a lower beam 13 and four bracket frames connected end to end in sequence to form a rectangular frame, the rectangular frame is symmetrically indented with the geometric diagonal of the car bottom platform 1 as the center, and one of the diagonals is arranged to coincide with the center line of the lower beam 13;

The shock absorbing member 2 comprises a plurality of transverse reinforcing ribs 122 arranged at intervals in the car bottom platform 1 and a plurality of longitudinal reinforcing ribs 121 arranged at intervals in sequence, the transverse reinforcing ribs 122 are located below the longitudinal reinforcing ribs 121, and the transverse reinforcing ribs 122 are arranged vertically in space therebetween, and a plurality of new rubber springs 21 for shock absorbing the car bottom platform 1 are uniformly arranged in sequence on the bottom surface of the transverse reinforcing ribs 122;

The new rubber spring 21 is arranged on the top surface of the car bottom bracket 12 at one side away from the transverse reinforcing rib 122; the above structure can achieve the following beneficial effects;

1. The structural design of each component of the car bottom is symmetrically designed based on the geometric diagonal of the car bottom platform 1, so that the force on the car bottom is reasonable and the load-bearing capacity of the car bottom is stronger;

2. The new rubber spring 21 is used to replace the traditional rectangular rubber spring as the shock absorbing mechanism and is evenly distributed. It not only changes the concentrated force into a distributed force and improves the force condition, but also saves the need for an additional rubber spring anti-jump and anti-failure device because the new rubber spring 21 itself can play an anti-jump and anti-failure role;

3. The reinforcing ribs of the car bottom platform 1 are designed with longitudinal and transverse layered superposition, which simplifies the structure of the special-shaped car bottom platform 1, reduces the difficulty of arranging the vibration-absorbing parts, and improves the stability, reliability and comfort of the elevator operation;

4. The car bottom bracket 12 adopts a rectangular structure design and a diagonal line coincides with the center line of the lower beam 13. The safety clamp 14 and its linkage mechanism are arranged on the lower beam 13, which makes the structure of the car bottom bracket 12 simpler from complex. At the same time, the layout of the shock absorbing mechanism is also simple. Due to the reasonable structure and clear layers, the size of each component can be reduced, the pit depth is reduced, the manufacturing difficulty is reduced, and the processing cost and construction cost are saved.

It should be noted that the purpose of setting the above-mentioned longitudinal reinforcement ribs 121 and transverse reinforcement ribs 122 is to adopt a criss-cross reinforcement rib layered stacking design to transform the special-shaped structure into a rectangular structure, the complex structure into a simple structure, and make the car bottom platform 1 structure simple and compact, and have a strong bearing capacity.

Furthermore, the new rubber spring 21 in the shock absorber 2 is installed in the transverse reinforcing rib 122, and the position at the other end for installing the new rubber spring 21 needs to be determined. In this embodiment, the car bottom bracket 12 is provided with a plurality of spring mounting beams 211 corresponding to the transverse reinforcing rib 122 one by one, and the spring mounting beam 211 is provided with a plurality of mounting holes for orderly installing the new rubber spring 21; by setting the spring mounting beam 211 and the mounting hole, the new rubber spring 21 can be stably installed between the two, and can play an important shock absorbing effect.

In addition, in order to further improve the strength and stability of the entire car bottom bracket 12, in the specific embodiment of the present invention, the spring mounting beam 211 is also provided with a compensation chain hanger for enhancing the strength of the car bottom bracket 12; the compensation chain hanger and the beam both increase the strength of the car bottom bracket 12, and the beam also undertakes the load transfer of the car bottom platform 1; accordingly, an accompanying cable hanger is provided on the beam to facilitate the orderly installation of the entire elevator structure.

It should also be noted that the rectangular frame composed of the four bracket frames mentioned above, which are connected end to end, is distributed vertically as shown in Figure 3, and one of the diagonals is arranged to coincide with the center line of the lower beam 13. The purpose of this arrangement is to transform the heterogeneous structure into a simple rectangular structure.

Accordingly, in order to make the entire car bottom bracket 12 better adapt to the balance during use, in this embodiment, a plurality of counterweight blocks 3 for adjusting the balance of the car bottom are provided on the frame of the car bottom bracket 12; the setting of the counterweight blocks 3 can make the car bottom bracket 12 better adapt to various situations.

Furthermore, the size of the car bottom bracket 12 is reduced and reasonably indented, the complex special-shaped structure is changed into a simple rectangular structure, and the accompanying cable hanger 212 and the compensation chain hanger are both arranged thereon, so as to reduce the manufacturing difficulty and save material costs.

It should be noted that the car bottom bracket 12 adopts a rectangular structure design and a diagonal line coincides with the center line of the lower beam 13, and the safety clamp 14 and its linkage mechanism are arranged on the lower beam 13, so that the structure of the car bottom bracket 12 is simplified from complex, and the layout of the shock absorbing mechanism is also simple. Due to the reasonable structure and clear layers, the size of each component can be reduced, the pit depth is reduced, the manufacturing difficulty is reduced, and the processing cost and construction cost are saved.

It is worth mentioning that a safety clamp 14 and a safety clamp 14 linkage mechanism are provided on the lower beam 13, and a car guide shoe 15 is provided on the safety clamp 14; the above-mentioned structure can further ensure the orderly operation of the entire elevator.

Furthermore, in addition to the above-mentioned structure, the briefing platform in the present embodiment is also provided with a car floor plate 16. As shown in Figures 1 and 2, the corners of the car floor plate 16 are equilaterally symmetrical with the geometric diagonal of the car floor platform 1 as the center. After the corners are rounded, the special-shaped car floor plate 16 can be approximately regarded as a rectangle. In order to install the car wall and reduce the processing time of the car wall hole, the frame of the car floor platform 1 is retracted into the entire car wall thickness to form a frame structure frame similar to the car floor plate 16. The reinforcing ribs in the frame frame are based on the longitudinal and transverse center lines of the approximate rectangle, and are symmetrically and evenly arranged in longitudinal and transverse layered superpositions to form a frame structure, and a number of new rubber springs 21 are evenly distributed on the transverse reinforcing ribs 122. This not only increases the strength of the car floor plate 16 and improves the bearing capacity, but also makes the layout of the rubber springs simple, flexible, and more reasonable through the longitudinal and transverse changes of the reinforcing ribs, thereby improving the vibration reduction effect.

In addition, the longitudinal reinforcement 121 is provided with a weighing structure for weighing the weight in the elevator car in a direction parallel to the center line of the lower beam 13; specifically, the structure of the above-mentioned weighing structure is: the weighing structure includes a switch mounting bracket 411 arranged on the longitudinal reinforcement 121, and a weighing switch 41 is arranged in the switch mounting bracket 411, and a weighing trigger device 4 for triggering the weighing switch 41 is symmetrically arranged at the center position of the lower beam 13, and the weighing trigger device 4 is arranged corresponding to the weighing switch 41; through the setting of the weighing structure, the weight of the goods carried in the elevator car can be sensed and weighed in real time to avoid overloading of passengers or goods. This part of the structure is relatively mature in the prior art, so it will not be repeated.

It should be noted that a sill bracket 111 is provided between the bottom of the car door sill 11 and the car bottom platform 1. The sill bracket 111 is arranged at 90 degrees and is arranged at the elevator entrance and exit door area. This arrangement is for the purpose of facilitating the formation of a double-way door opening.

In addition, the same structure of the above car bottom structure can meet both wide car requirements and deep car requirements, as described below:

Most of the car size requirements on the market are for regular cars and deep cars. The traditional car bottom structure is designed by setting several rows of rubber springs in the depth direction between the car bottom platform and the car bottom bracket, and two rows of rubber springs in the width direction to meet the requirements of regular cars and deep cars. This structure is not applicable to the requirements of wide cars.

Correspondingly, in response to the above problems, the present invention cleverly arranges rubber spring mounting beams on the car bottom platform and the car bottom bracket respectively, so that the arrangement of the vibration reduction mechanism becomes flexible, and several rows of rubber springs can be arranged in the width direction of the car according to the width size of the car, and in the depth direction of the car, several rows of rubber spring mounting beams can be simultaneously added to the car bottom bracket and the car bottom platform according to the depth size of the car, and several rows of rubber springs can be arranged, so that the same structure can meet both the requirements of a wide car and a deep car.

It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific implementation manners, and any other implementation manners derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims (8)

1. The utility model provides a structure at bottom of sedan-chair convenient to promote elevator stability, includes platform (1) at bottom of the sedan-chair, its characterized in that: the upper side of the car bottom platform (1) is provided with a car door sill (11), and the bottom of the car bottom platform is provided with a car bottom bracket (12); a damping piece (2) is arranged between the car bottom platform (1) and the car bottom bracket (12);

The car bottom bracket (12) comprises a rectangular frame formed by a lower beam (13) and four bracket frames which are sequentially connected end to end, wherein the rectangular frame is symmetrically arranged in a retracting manner by taking a geometric diagonal line of the car bottom platform (1) as a center, and one diagonal line is overlapped with the central line of the lower beam (13);

The damping piece (2) comprises two transverse reinforcing ribs (122) which are arranged in the car bottom platform (1) at intervals and a plurality of longitudinal reinforcing ribs (121) which are sequentially distributed at intervals, wherein the transverse reinforcing ribs (122) are arranged below the longitudinal reinforcing ribs (121) and are vertically distributed in space, and a plurality of novel rubber springs (21) for damping the car bottom platform (1) are sequentially and uniformly arranged on the bottom surface of the transverse reinforcing ribs (122);

one side of the novel rubber spring (21) away from the transverse reinforcing rib (122) is arranged on the top surface of the car bottom bracket (12).

2. The car bottom structure convenient for improving the stability of an elevator according to claim 1, wherein: a plurality of spring mounting cross beams (211) which are in one-to-one correspondence with the transverse reinforcing ribs (122) are arranged in the car bottom bracket (12), and a plurality of mounting holes for orderly mounting novel rubber springs (21) are formed in the spring mounting cross beams (211).

3. The car bottom structure convenient for improving the stability of an elevator according to claim 2, wherein: and the spring mounting cross beam (211) is also provided with a compensation chain hanging frame (123) for enhancing the strength of the car bottom bracket (12).

4. The car bottom structure convenient for improving the stability of an elevator according to claim 1, wherein: a sill bracket (111) is arranged between the bottom of the car door sill (11) and the car bottom platform (1), and the sill bracket (111) is arranged at 90 degrees and is arranged at the elevator entrance and exit door zone.

5. The car bottom structure convenient for improving the stability of an elevator according to claim 1, wherein: the longitudinal reinforcing ribs (121) are arranged in the parallel direction of the central line of the lower beam (13) and are provided with weighing structures for weighing the weight in the elevator car.

6. The elevator car bottom structure for facilitating elevator stability improvement according to claim 5, wherein: the weighing structure comprises a switch mounting bracket (411) arranged on the longitudinal reinforcing rib (121), a weighing switch (41) is arranged in the switch mounting bracket (411), a weighing trigger device (4) for triggering the weighing switch (41) is symmetrically arranged at the center position of the lower beam (13), and the weighing trigger device (4) is correspondingly arranged with the weighing switch (41).

7. The car bottom structure convenient for improving the stability of an elevator according to claim 1, wherein: the frame of the car bottom bracket (12) is provided with a plurality of balancing weights (3) for adjusting the balance of the car bottom.

8. The car bottom structure convenient for improving the stability of an elevator according to claim 1, wherein: the lower beam (13) is provided with a safety tongs (14) and a safety tongs (14) linkage mechanism, and the safety tongs (14) are provided with a car guide shoe (15).