CN217756401U - Elevator car frame - Google Patents

Abstract

The utility model relates to an elevator technical field especially relates to elevator sedan-chair frame. An elevator car frame comprises an upper beam frame body, an upright post and a car top wheel assembly, wherein the upright post is connected with the upper beam frame body; the car top wheel assembly comprises an inner upper beam and a car top wheel which are connected with each other, and the inner upper beam is detachably connected with the upper beam frame body or the upright post. The utility model has the advantages that: when the maintenance and the replacement are carried out, a user only needs to detach the car top wheel assembly from the upper beam frame body or the upright post, so that the car top wheel can be replaced, the replacement is convenient, and the maintenance and replacement efficiency is improved.

Description

Elevator car frame

Technical Field

The utility model relates to an elevator technical field especially relates to elevator sedan-chair frame.

Background

The elevator comprises a counterweight, a traction system and a car, wherein the car comprises a car frame and a car body, and the traction system comprises a traction machine, a traction rope and a guide wheel. One end of the traction rope is connected with the counterweight, the other end of the traction rope bypasses a traction wheel and a guide wheel of the traction machine and then is connected with the car frame, and the traction rope is driven by the traction machine to realize the lifting of the car body.

Generally, a traction rope is connected with a car frame through a car top wheel, the car top wheel is installed on an upper beam of the car frame, and the traction rope is wound on the car top wheel to realize connection. At present, the traction rope has two types, namely a steel wire rope and a steel belt, wherein the steel belt is widely applied to the household elevator market. The car top wheel drives the car to move up and down repeatedly through the traction rope, and in the long-term operation process, the bearing of the car top wheel can be abraded to cause internal looseness, so that the car body vibrates and emits abnormal sound when in operation, and therefore the car top wheel needs to be maintained and replaced regularly.

The existing elevator car frame structure has the problems of inconvenient maintenance of car top wheels and low maintenance efficiency.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an elevator car frame that can be easily replaced for maintenance.

An elevator car frame comprises an upper beam frame body, a stand column and a car top wheel assembly, wherein the stand column is connected with the upper beam frame body; the car top wheel assembly comprises an inner upper beam and a car top wheel which are connected with each other, and the inner upper beam is detachably connected with the upper beam frame body or the upright post.

So set up, when maintaining and changing, the user only need pull down sedan-chair top wheel subassembly from the entablature framework or stand to take out from first opening, just can change the sedan-chair top wheel, it is convenient to change, thereby improves the efficiency of maintaining and changing.

In one embodiment, the ceiling wheel assembly is located within a horizontal projection area of the upper frame.

So set up, the inside space of roof beam framework is gone up to make full use of, saves the below space for this elevator sedan-chair frame is applicable to the narrow domestic elevator in well space.

In one embodiment, the elevator car frame further comprises a top plate assembly, and the top plate assembly is arranged above the first opening and detachably connected with the inner upper beam and the upper beam frame body respectively.

So set up, through roof plate subassembly realization interior upper beam and the connection between the upper beam framework.

In one embodiment, the top plate assembly includes a top plate and a shock absorber disposed between the top plate and the inner upper beam.

So set up, when the car vibrations, have the buffering surplus between roof and the interior entablature, reduce the sense of vibration, improve passenger's the comfort of taking.

In one embodiment, the inner upper beam is connected to the top plate through the shock absorbing member, the shock absorbing member includes a shock absorbing body and connecting plates located at both sides of the shock absorbing body, and the connecting plates are respectively connected to the top plate and the inner upper beam.

The shock absorption piece is used as a connecting mechanism of the inner upper beam and the top plate, so that the whole structure is simpler; because the shock absorber is softer, connect through the connecting plate, can strengthen the joint strength between shock absorber and roof and the interior upper beam.

In one embodiment, the top plate assembly further includes a fastening unit, and the top plate and the upper frame are connected by the fastening unit.

In one embodiment, the fastening unit includes a bolt and a nut, a limit pin is disposed at one end of the bolt, the bolt penetrates through the upper beam frame and the top plate and is in threaded connection with the nut, and the nut is located between the limit pin and the top plate.

Because the car body can produce vibrations in the course of the work, can take place to become flexible between nut and the bolt, the spacer pin can avoid the nut not hard up.

In one embodiment, the number of the car top wheels is two, the number of the inner upper beams is two, the two inner upper beams are arranged at intervals, the two sets of the car top wheels are arranged between the two inner upper beams and are respectively positioned at two ends of the two inner upper beams, and each set of the car top wheels is detachably connected with the two inner upper beams.

So set up, make things convenient for the dismantlement of sedan-chair top wheel.

In one embodiment, a support plate is arranged between the two inner upper beams.

The backup pad plays the supporting role to interior upper beam, prevents that interior upper beam warp because of the action of gravity.

In one embodiment, a platform is connected to the bottom of the upright, and the first opening is formed in the side face, far away from the platform, of the upper beam frame.

Compared with the prior art, the utility model provides an elevator sedan-chair frame is through setting up sedan-chair top wheel subassembly in the first open-ended vertical projection district of entablature framework to can dismantle the connection with entablature framework or stand in will, when maintaining and changing, the user only need pull down sedan-chair top wheel subassembly from the entablature framework or stand, takes out from first opening again, just can change the sedan-chair top wheel, and it is convenient to change, thereby improves the efficiency of maintaining and changing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the conventional technologies, the drawings required to be used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an explosion schematic view of an elevator car frame provided by the present invention;

FIG. 2 is a perspective view of the top wheel assembly mounted within the upper beam frame;

FIG. 3 is a top view of the top wheel assembly mounted within the upper beam frame;

FIG. 4 is a front view of the top wheel assembly mounted within the upper beam frame;

FIG. 5 is a side view of the top wheel assembly mounted within the upper beam frame;

figure 6 is a partial cross-sectional view of the top wheel assembly mounted within the upper beam frame;

FIG. 7 is a perspective view of the upper frame and the top plate assembly when connected;

FIG. 8 is a front view of the upper beam frame as it is connected to the top plate assembly;

FIG. 9 is a top view of the upper beam frame when connected to the top plate assembly;

FIG. 10 is a bottom view of the upper beam frame in connection with the top plate assembly;

figure 11 is a perspective view of the ceiling wheel assembly;

FIG. 12 is a front view of the top sheave assembly;

figure 13 is a top view of the top wheel assembly.

The symbols in the drawings represent the following meanings:

100. an elevator car frame; 10. a platform; 20. a column; 30. a car roof wheel assembly; 31. an inner upper beam; 311. second flanging; 312. a second reinforcing plate; 313. a support plate; 32. a car top wheel; 40. an upper beam frame body; 41. a first opening; 42. a second opening; 43. a side plate; 44. an end plate; 45. a first flanging; 46. a first reinforcing plate; 60. a top plate assembly; 61. a top plate; 611. third flanging; 62. a shock absorbing member; 621. a connecting plate; 622. a shock absorber; 63. a fastening unit; 631. a bolt; 632. a nut; 633. and a limiting pin.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The use of the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like in the description of the invention is for illustrative purposes only and does not denote a single embodiment.

Furthermore, 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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present disclosure, unless otherwise explicitly stated or limited, a first feature "on" or "under" a second feature may mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate 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 first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present invention provides an elevator car frame 100 installed in an elevator for installing a car body.

Specifically, the elevator car frame 100 includes a column 20 and a top wheel assembly 30, the top wheel assembly 30 being located at one end of the column 20.

The top wheel assembly 30 includes a top wheel 32, the top wheel 32 is connected to the elevator car frame 100 via a traction rope, the other end of the traction rope is connected to a counterweight (not shown), and the traction machine drives the traction rope to lift the car body. In the long-term operation process, the bearing of the car top wheel 32 can be worn to cause internal looseness, so that the car body vibrates and makes abnormal sound when in operation, and therefore, the car top wheel 32 needs to be maintained and replaced regularly. The top wheel 32 can be a steel pulley or sheave and the traction ropes can be steel belts or steel wire ropes.

In a home elevator, because a hoistway space is narrow, a car body is a platform 10, the platform 10 is arranged at one end of an upright post 20, and a car top wheel assembly 30 is arranged at one end of the upright post 20 far away from the platform 10.

In other types of elevators, the elevator car frame 100 further includes a cross member (not shown) disposed at an end of the column 20 remote from the top wheel assembly 30, and the car body is disposed within the elevator car frame 100.

The existing elevator car frame has the problems of inconvenient maintenance and replacement of the car top wheel and low efficiency.

Referring to fig. 2 and 3, in order to solve the above problems, the elevator car frame 100 of the present invention further includes an upper frame 40, a first opening 41 is disposed on one side of the upper frame 40, the car top wheel assembly 30 further includes an inner upper beam 31, the inner upper beam 31 is connected to the car top wheel 32, the upper frame 40 is connected to the column 20, the car top wheel assembly 30 is disposed in the vertical projection area of the first opening 41, and the inner upper beam 31 is detachably connected to the column 20 or the upper frame 40. In maintenance and replacement, the top wheels 32 can be replaced by detaching the top wheel assemblies 30 from the upper frame 40 or the columns 20, so that the replacement is convenient, and the maintenance and replacement efficiency is improved. The vertical projection area of the first opening 41 refers to a projection in the up-down direction of the first opening 41.

Further, the car top wheel assembly 30 is located in the horizontal projection area of the upper beam frame 40, that is, the car top wheel assembly 30 is located inside the upper beam frame 40, so that the space inside the upper beam frame 40 can be fully utilized, the lower space of the upper beam frame 40 is saved, the structure is compact, and the application scene of the elevator car frame 100 is expanded, for example, the elevator car frame 100 of the present embodiment can be applied to a household elevator with a narrow hoistway.

In one embodiment, the first opening 41 of the upper frame 40 is disposed at a side away from the platform 10, so that a maintenance person can perform maintenance and replacement operations on the top of the car, thereby facilitating the operation. In this embodiment, when the top wheel assembly 30 is detachably connected to the vertical column 20, openings need to be provided on both sides of the upper frame 40, that is, the upper frame 40 is hollow, so that the top wheel assembly 30 can be taken out without being blocked.

The side of the upper beam frame 40 far away from the first opening 41 is provided with a second opening 42, that is, the upper beam frame 40 is a hollow structure with openings on both sides, so as to reduce the load of the upright post 20.

Referring to fig. 7, the upper frame 40 includes two side plates 43 and two end plates 44, and the two side plates 43 and the two end plates 44 are connected in sequence to form a square. Both sides of curb plate 43 and end plate 44 all are equipped with first turn-ups 45, and curb plate 43 and end plate 44 are connected through first turn-ups 45, and first turn-ups 45 not only plays the reinforcing effect, still plays the connection effect.

In one embodiment, the upper frame 40 is rectangular, and the length of the side plate 43 is longer than that of the end plate 44, so that the side plate 43 is easily deformed due to load, and the first reinforcing plate 46 is provided on the side plate 43 to reinforce the strength of the side plate 43, thereby alleviating the deformation problem of the side plate 43. In other embodiments, the first reinforcing plate 46 may be provided on the end plate 44, and the first reinforcing plate 46 may be provided on both the side plate 43 and the end plate 44.

In one embodiment, two first reinforcing plates 46 are provided on one side plate 43, but the number of the first reinforcing plates 46 may be adjusted according to the length of the side plate 43.

The first reinforcing plate 46 is provided outside the upper frame 40, and can provide a mounting space for the ceiling wheel 32 and the inner upper frame 31, and prevent the reinforcing plate from interfering with the ceiling wheel 32 and the inner upper frame 31.

Referring to fig. 11, in one embodiment, there are two sets of top wheels 32, the two sets of top wheels 32 are respectively disposed at two ends of the inner upper beam 31, there are two top wheels 32 in each set, and in other embodiments, the number of the top wheels 32 can be adjusted according to different specifications of the elevator.

In order to strengthen the fastness of sedan-chair top wheel 32 installation, interior upper beam 31 also sets up to two, and two interior upper beams 31 intervals set up, and sedan-chair top wheel 32 is in two between the upper beam 31, and two interior upper beams 31 all are connected with upper beam framework 40 or stand 20, strengthen connection fastness and stability.

The inner upper beam 31 is provided with a second flanging 311, and the second flanging 311 plays a role in reinforcement.

Preferably, the second flange 311 is disposed on a side of the inner upper beam 31 away from the platform 10, so that the inner upper beam 31 is connected by the second flange 311, thereby enhancing convenience and firmness of connection.

The second flange 311 extends in a direction away from the top wheel 32, and the second flange 311 is prevented from interfering with the top wheel 32.

The side of the inner upper beam 31 far away from the car top wheel 32 is provided with a second reinforcing plate 312, the second reinforcing plate 312 is abutted to the second flanging 311, and the second reinforcing plate 312 not only plays a role in reinforcing, but also plays a role in supporting the second flanging 311.

In one embodiment, two second flanges 311 are disposed on one inner upper beam 31 and disposed on two sides of the inner upper beam 31, respectively, to further reinforce the strength of the inner upper beam 31, and two ends of the second reinforcing plate 312 abut against the second flanges 311 on two sides, respectively.

In one embodiment, two top wheels 32 and two inner top beams 31 are enclosed to form a rectangular structure, and two second reinforcing plates 312 are disposed on one inner top beam 31. In other embodiments, the number of the second reinforcing plates 312 can be adjusted according to the length of the inner upper beam 31.

Referring to fig. 12 and 13, a support plate 313 is disposed between the two inner upper beams 31, two ends of the support plate 313 are respectively connected to the two inner upper beams 31, and the support plate 313 supports the inner upper beams 31 to prevent the inner upper beams 31 from being deformed due to gravity.

In one embodiment, support plate 313 is "U" shaped to facilitate a bolted connection to inner upper beam 31.

In one embodiment, there are two support plates 313, and the two support plates 313 are spaced apart. In other embodiments, the number of the support plates 313 can be adaptively adjusted according to the length of the inner upper beam 31.

The elevator car frame 100 further includes a top plate assembly 60, wherein the top plate assembly 60 is disposed above the first opening 41 and detachably connected to the inner top rail 31 and the top rail frame 40, that is, the inner top rail 31 is detachably connected to the top rail frame 40 through the top plate assembly 60.

Referring to fig. 6 and 10, the top plate assembly 60 includes a top plate 61 and a shock absorbing member 62, the top plate 61 is disposed above the first opening 41 of the upper frame 40, and the shock absorbing member 62 is disposed between the top plate 61 and the inner upper frame 31. Because the car body can produce vibrations in the moment of starting or stopping, through set up bumper shock absorber 62 between roof 61 and interior upper beam 31 for have the buffering allowance between roof 61 and the interior upper beam 31, reduce the sense of vibration, improve passenger's the riding comfort. The shock absorbing members 62 may be made of a softer material such as rubber, silicone, spring, or plastic.

The two ends of the top plate 61 are respectively connected with the first flanges 45 of the two side plates 43 to enhance the connection firmness.

In one embodiment, the two top plates 61 are arranged at intervals, so that the connection strength can be enhanced, materials can be saved, the weight of the whole elevator car frame 100 can be reduced, and a maintenance worker can easily move the top plates 61 when detaching the top plates 61. In other embodiments, the number of the top plates 61 can be adjusted adaptively according to the weight of the car top wheels 32 and the inner upper beam 31, and the length of the upper beam frame 40.

Referring to fig. 5, the third flanges 611 are disposed on two sides of the top plate 61, and the third flanges 611 play a role in reinforcement.

The third turned edge 611 extends in a direction away from the ceiling wheel 32, and prevents the third turned edge 611 from interfering with the upper frame 40.

The shock-absorbing member 62 comprises two shock-absorbing bodies 622 and two connecting plates 621, the two connecting plates 621 are respectively arranged on two sides of the shock-absorbing bodies 622, two ends of each connecting plate 621 are respectively arranged in a protruding mode relative to two side faces of the shock-absorbing bodies 622, two ends of each connecting plate 621 close to the top plate 61 are connected with the top plate 61, and two ends of each connecting plate 621 close to the inner upper beam 31 are connected with the inner upper beam 31. It can be understood that since the shock absorbing body 622 is soft, the connection strength between the shock absorbing body 622 and the top plate 61 can be enhanced by the connection plate 621. The connecting plate 621 and the top plate 61, and the connecting plate 621 and the inner upper beam 31 may be connected by a bolt, a snap, etc.

With the development of the elevator industry, users have higher and higher requirements on elevators, particularly household elevators, and the installation space of the household elevators is relatively narrow. To this end, the utility model discloses set up the bumper piece 62 and set up for the terminal surface indentation setting of first opening 41 department, or, the terminal surface that keeps away from interior upper beam 31 with bumper piece 62 sets up to flush with the terminal surface of first opening 41 department to reduce the headroom of car.

Referring to fig. 9, the top plate assembly 60 further includes a fastening unit 63, and the top plate 61 and the upper frame 40 are detachably connected by the fastening unit 63.

Referring to fig. 4 and 8, in an embodiment, the fastening unit 63 includes a bolt 631 and a nut 632, and the bolt 631 passes through the upper frame 40 and the top plate 61 respectively and is in threaded connection with the nut 632. One end of the bolt 631 is provided with a limit pin 633, the nut 632 is located between the top plate 61 and the limit pin 633, and the limit pin 633 is used for preventing the nut 632 from loosening. It can be understood that the bolt 631 is connected to the top plate 61 and the upper frame 40, the bolt 631 receives a large force, the nut 632 is loosened from the bolt 631 by vibration during movement of the car, and the nut 632 can be effectively prevented from being loosened by the limit pin 633.

In an embodiment, the bolt 631 is a pin bolt 631, and one end of the pin bolt 631 is provided with a pin hole, and the pin hole is directly provided with the limit pin 633 without additionally processing the pin hole.

In maintenance or replacement of the ceiling wheel 32, the ceiling wheel assembly 30 is detached from the inner upper frame 31 or the column 20, taken out of the first opening 41, and after the ceiling wheel 32 is replaced, attached to the inner upper frame 31, and then integrally attached to the upper frame 40 or connected to the column 20. Easy dismounting can improve and change and maintenance efficiency.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An elevator car frame is characterized by comprising an upper beam frame body (40), a stand column (20) and a car top wheel assembly (30), wherein the stand column (20) is connected with the upper beam frame body (40);

a first opening (41) is formed in one side of the upper beam frame body (40), the car top wheel assembly (30) is located in a vertical projection area of the first opening (41), the car top wheel assembly (30) comprises an inner upper beam (31) and a car top wheel (32) which are connected with each other, and the inner upper beam (31) is detachably connected with the upper beam frame body (40) or the upright column (20).

2. The elevator car frame of claim 1, wherein said top sheave assembly (30) is located within a horizontal projection of said upper beam frame (40).

3. The elevator car frame of claim 1, further comprising a top plate assembly (60), wherein the top plate assembly (60) is disposed above the first opening (41) and is detachably connected to the inner upper beam (31) and the upper beam frame (40), respectively.

4. The elevator car frame of claim 3, wherein said top plate assembly (60) comprises a top plate (61) and a shock absorber (62), said shock absorber (62) being disposed between said top plate (61) and said inner upper beam (31).

5. The elevator car frame according to claim 4, wherein the inner upper beam (31) is connected to the top plate (61) through the shock absorbing members (62), the shock absorbing members (62) comprise shock absorbing bodies (622) and connecting plates (621) located on both sides of the shock absorbing bodies (622), and the connecting plates (621) are respectively connected to the top plate (61) and the inner upper beam (31).

6. The elevator car frame according to claim 4, wherein said top plate assembly (60) further comprises a fastening unit (63), and said top plate (61) and said upper beam frame (40) are connected by said fastening unit (63).

7. The elevator car frame according to claim 6, wherein the fastening unit (63) comprises a bolt (631) and a nut (632), one end of the bolt (631) is provided with a limit pin (633), the bolt (631) penetrates through the upper beam frame (40) and the top plate (61) and is in threaded connection with the nut (632), and the nut (632) is located between the limit pin (633) and the top plate (61).

8. The elevator car frame according to claim 1, wherein the number of the top wheels (32) is two, the number of the inner upper beams (31) is two, the two inner upper beams (31) are arranged at intervals, the two sets of top wheels (32) are arranged between the two inner upper beams (31) and are respectively positioned at two ends of the two inner upper beams (31), and each set of top wheels (32) is detachably connected with the two inner upper beams (31).

9. The elevator car frame according to claim 8, wherein a support plate (313) is provided between the two inner upper beams (31).

10. The elevator car frame according to claim 8, wherein a platform (10) is connected to the bottom of the pillar (20), and the first opening (41) is opened in a side surface of the upper beam frame (40) away from the platform (10).

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