Car frame suitable for household elevator

Abstract

The utility model belongs to the technical field of elevator car frames, and particularly relates to a car frame suitable for a home elevator. The utility model provides a car frame suitable for a household elevator, which comprises an upper beam structure fixedly connected with the upper surface of a car, a lower beam structure fixedly connected with the lower surface of the car, and a vertical beam structure of which the two ends are respectively connected with the upper beam structure and the lower beam structure, so that the car frame and the car are integrally arranged; and the hoistway space occupied by the car frame is further compressed, and certain reinforcing support is provided for operation of the car.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator carriages, and particularly relates to a carriage applicable to a household elevator. Background Art

[0002] Household elevators provide a convenient vertical transportation method for many villas and multi-family houses. Especially for the elderly, people with limited mobility, or parents with baby strollers, their importance is self-evident. It should be noted that the plane size of household elevators is reduced by about 15% compared with ordinary passenger elevators, and the pit depth is reduced by 40% on the premise of meeting safety standards. Therefore, while ensuring safety, it is necessary to compress the space of the top floor and the pit of the hoistway as much as possible.

[0003] A Chinese invention patent with the patent publication number CN118004862A and the publication date of March 27, 2024, discloses an elevator carriage structure, including a car, a car top, an upper beam assembly located above the car top, a car bottom assembly installed at the bottom of the car, a lower beam assembly installed at the bottom of the car bottom assembly, and vertical beams installed on both sides of the car. The lower ends of the vertical beams are installed on both sides of the car bottom assembly and the lower beam assembly, and the upper beam assembly is installed on the upper ends of the vertical beams; 2 anti-tension pulley structures are installed on the upper beam assembly; safety tongs are embedded at both ends of the lower beam assembly, and safety lifting devices connected to the safety tongs are arranged on both sides of the lower beam assembly. The safety lifting devices are in transmission connection with the governor wire rope.

[0004] The general usage method and advantages of the elevator carriage structure in this Chinese invention patent are as follows: The double anti-tension pulley structure partially hidden in the upper beam assembly increases the wire rope wrap angle for hanging, reduces the elevator structure of the machine room anti-tension pulley, and effectively reduces the height of the carriage; the car bottom assembly has a simple structure, improves the stiffness of the car bottom, and the integral structure of the safety tongs, safety lifting devices, and lower beam assembly enables good synchronization of the safety tongs lifting; it solves the space problem between the vertical beam and the car, effectively reduces the width size of the carriage, and reduces the hoistway size.

[0005] However, during the actual use of this elevator carriage structure, there are at least the following deficiencies, that is, the technical problems to be solved by the present utility model: The car and the carriage in the elevator carriage structure are separately arranged. For household elevators, it occupies the car top space and thus occupies part of the top floor space, resulting in a large amount of space waste.

[0006] Therefore, in summary, there is an urgent need for a household elevator carriage that can further compress the required space of the hoistway to solve such problems. Summary of the Utility Model

[0007] The present utility model provides a car frame applicable to a household elevator, which includes an upper beam structure fixedly connected to the upper surface of the car, a lower beam structure fixedly connected to the lower surface of the car, and vertical beam structures respectively connected to the upper beam structure and the lower beam structure at both ends, such that: the present utility model integrally sets the car frame and the car, further compresses the hoistway space occupied by the car frame, and provides certain enhanced support for the operation of the car.

[0008] The technical solution adopted by the present utility model to solve the above problems is: a car frame applicable to a household elevator, which includes an upper beam structure fixedly connected to the upper surface of the car, a lower beam structure fixedly connected to the lower surface of the car, and vertical beam structures respectively connected to the upper beam structure and the lower beam structure at both ends.

[0009] A further preferred technical solution lies in that: the upper beam structure includes an upper cross beam, two inverted U-shaped beams respectively arranged at both ends of the upper cross beam and slidably connected to the two side edges of the upper cross beam, a plurality of first positioning holes arranged on the inverted U-shaped beams, a plurality of second positioning holes arranged on the upper cross beam, and positioning pins arranged on the first positioning holes and connected to the second positioning holes.

[0010] A further preferred technical solution lies in that: the lower beam structure includes a lower cross beam, two U-shaped beams respectively arranged at both ends of the lower cross beam and slidably connected to the two side edges of the lower cross beam, a plurality of first through holes arranged on the U-shaped beams, a plurality of first threaded holes arranged on the lower cross beam, and first bolts arranged on the first through holes and connected to the first threaded holes.

[0011] A further preferred technical solution lies in that: the vertical beam structure includes a column slidably arranged at both ends in the inverted U-shaped beam and the U-shaped beam respectively, a first connection hole and a second connection hole respectively arranged at the top end and the bottom end of the column, a first connecting rod passing through the first positioning hole and connected to the first connection hole, and a second connecting rod passing through the first through hole and connected to the second connection hole.

[0012] A further preferred technical solution lies in that: it further includes a diagonal tension rod structure arranged at the bottom corners of the car and connected to the column.

[0013] A further preferred technical solution lies in that: the diagonal tension rod structure includes a diagonal tension telescopic rod, a sliding structure hinged to the upper end of the diagonal tension telescopic rod and slidably connected to the column, and a rotating member arranged at the lower end of the diagonal tension telescopic rod and hinged to the bottom corner of the car.

[0014] A further preferred technical solution lies in that: the vertical beam structure further includes a sliding groove provided on the surface of the column parallel to the side wall of the car, a connecting groove provided on the surface of the column different from the surface where the sliding groove is provided and communicating with the sliding groove, and a second threaded hole provided on the inner wall of the sliding groove; the sliding structure includes a connecting block hinged to the upper end of the diagonal tension telescopic rod, passing through the connecting groove, and slidingly connected in the sliding groove, a second through hole penetrating through the connecting block, and a second bolt passing through the second through hole and screwed with the second threaded hole.

[0015] A further preferred technical solution lies in that: the diagonal tension telescopic rod includes an outer sleeve rod and an inner connecting rod slidably connected in the outer sleeve rod, a plurality of third threaded holes provided on the inner connecting rod, a plurality of third through holes provided on the outer sleeve rod, and a third bolt passing through the third through hole and connecting with the third threaded hole.

[0016] A further preferred technical solution lies in that: it further includes a positioning structure provided on the car for installing the upper cross beam or the lower cross beam.

[0017] A further preferred technical solution lies in that: the positioning structure includes a positioning column provided on the top or bottom of the car, a slot provided on the side end of the positioning column, and a plug board provided on the side end of the upper cross beam or the lower cross beam and connected with the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of Embodiment 1 of the present utility model;

[0019] Figure 2 It is a bottom view of Embodiment 1 of the present utility model;

[0020] Figure 3 It is a schematic diagram of Embodiment 1 of the present utility model;

[0021] Figure 4 It is a front view of Embodiment 2 of the present utility model;

[0022] Figure 5 It is a side view of Embodiment 3 of the present utility model;

[0023] Figure 6 It is a partial schematic diagram of Embodiment 3 of the present utility model;

[0024] Figure 7 It is a side view of Embodiment 4 of the present utility model.

[0025] In the figure, the meanings of the reference numerals are as follows:

[0026] Car a;

[0027] Upper beam structure 1, lower beam structure 2, vertical beam structure 3, diagonal tension rod structure 4, positioning structure 5;

[0028] Upper cross beam 11, inverted U-shaped beam 12, first positioning hole 13, second positioning hole 14, positioning pin 15, lower cross beam 21, U-shaped beam 22, first through hole 23, first threaded hole 24, first bolt 25, column 31, first connection hole 32, second connection hole 33, first connecting rod 34, second connecting rod 35, sliding groove 36, connection groove 37, second threaded hole 38, diagonal tension telescopic rod 41, sliding structure 42, rotating part 43, positioning column 51, slot 52, inserting plate 53;

[0029] Outer sleeve rod 411, inner connecting rod 412, third threaded hole 413, third through hole 414, third bolt 415, connection block 421, second through hole 422, second bolt 423. Specific embodiments

[0030] The following will describe in detail the embodiments of the present invention with reference to the accompanying drawings. The following is only a preferred embodiment of the present invention and does not limit the scope of the present invention.

[0031] The orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned in this specification are defined with respect to the structures shown in the respective drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may therefore change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0032] Embodiment 1

[0033] As shown in the attached Figures 1 - 3 drawing, a car frame applicable to a household elevator includes an upper beam structure 1 fixedly connected to the upper surface of the car a, a lower beam structure 2 fixedly connected to the lower surface of the car a, and a vertical beam structure 3 with both ends respectively connected to the upper beam structure 1 and the lower beam structure 2.

[0034] In this embodiment, the general usage method of the car frame applicable to a household elevator is as follows:

[0035] Fix the upper beam structure 1 as a reinforcing rib on the upper surface of the car a, with two sections extending outside the car a. It is used to connect the vertical beam structure 3 and can also be used as a car top clamping plate. Fix the lower beam structure 2 as a reinforcing rib on the lower surface of the car a, with both ends extending outside the car a. It can not only strengthen the strength of the car bottom but also connect the vertical beam structure 3; both the upper beam structure 1 and the lower beam structure 2 are arranged closely to the surface of the car, providing support for the car while minimizing the occupied top and pit hoistway space as much as possible.

[0036] Compared with the prior art, the technical solution of this embodiment has the following advantages: integrating the car frame and the car further compresses the hoistway space occupied by the car frame, making it more suitable for household elevators.

[0037] Embodiment Two

[0038] The difference between this embodiment and Embodiment One is that the size of the car frame is adjustable, making it applicable to more sizes of household elevators. As shown in the appendix, the details are as follows: Figure 4 as follows:

[0039] The upper beam structure 1 includes an upper cross beam 11, two inverted U-shaped beams 12 arranged at both ends of the upper cross beam 11 and slidably connected to the two side edges of the upper cross beam 11 respectively, a plurality of first positioning holes 13 arranged on the inverted U-shaped beams 12, a plurality of second positioning holes 14 arranged on the upper cross beam 11, and a positioning pin 15 arranged on the first positioning holes 13 and connected to the second positioning holes 14; the lower beam structure 2 includes a lower cross beam 21, two U-shaped beams 22 arranged at both ends of the lower cross beam 21 and slidably connected to the two side edges of the lower cross beam 21 respectively, a plurality of first through holes 23 arranged on the U-shaped beams 22, a plurality of first threaded holes 24 arranged on the lower cross beam 21, and a first bolt 25 arranged on the first through holes 23 and connected to the first threaded holes 24; the vertical beam structure 3 includes a column 31 slidably arranged at both ends in the inverted U-shaped beam 12 and the U-shaped beam 22 respectively, a first connection hole 32 and a second connection hole 33 arranged at the top end and the bottom end of the column 31 respectively, a first connecting rod 34 passing through the first positioning holes 13 and connected to the first connection hole 32, and a second connecting rod 35 passing through the first through holes 23 and connected to the second connection hole 33.

[0040] In this embodiment, the frame size for fixing the car formed by the upper beam structure 1, the lower beam structure 2, and the vertical beam structure 3 is adjustable. The upper cross beam 11 and the lower cross beam 21 are fixedly welded on the surface of the car. During on-site installation, the positions of the inverted U-shaped beam 12 relative to the upper cross beam 11 and the U-shaped beam 22 relative to the lower cross beam 21 are adjusted according to the actual hoistway space and layout, and then the fixing is completed by installing the columns 31. Two inverted U-shaped beams 12 are arranged at both ends of one upper cross beam 11 to form an upper cross beam group, and two U-shaped beams 22 are arranged at both ends of one lower cross beam 21 to form a lower cross beam group. One upper cross beam group, one lower cross beam group, and two columns 31 respectively arranged on both sides of the car and connecting the two ends of the upper and lower cross beam groups together form a single-sided frame around the surface of the car. Multiple single-sided frames can be arranged on the surface of the car to provide stronger stability. The specific on-site installation operations are as follows: Slide the inverted U-shaped beams 12 at both ends of the upper cross beam 11 to appropriate positions, insert the positioning pins 15 through the first positioning holes 13 and the second positioning holes 14. Preferably, multiple positioning pins 15 are connected to improve the stability of the installation. Similarly, slide the U-shaped beams 22 at both ends of the lower cross beam 21 to appropriate positions, screw the first bolt 25 through the first through hole 23 and the first threaded hole 24. Multiple first bolts 25 can be set to ensure stability. Finally, slide the column 31 to an appropriate position in the relative groove parts of the U-shaped beam 22 and the inverted U-shaped beam 12, insert the first connecting rod 34 into the first positioning hole 13 and the first connection hole 32 for connection. The second connection hole 33 is a threaded hole, and the second connecting rod 35 is a threaded rod. The second connecting rod 35 passes through the first through hole 23 and is screwed with the second connection hole 33.

[0041] Compared with the prior art, the technical solution of this embodiment has the advantage that it can be applied to home elevators of various sizes and can be adjusted according to the on-site installation conditions, maximizing the utilization rate of the hoistway.

[0042] Embodiment Three

[0043] In this embodiment, on the basis of Embodiment Two, a diagonal tension rod structure for providing enhanced support is added. As shown in the attachment Figures 5 - 6 as follows:

[0044] The car frame applicable to a home elevator further includes a diagonal tension rod structure 4 arranged at the bottom corners of the car a and connected to the column 31. The diagonal tension rod structure 4 includes a diagonal tension telescopic rod 41, a sliding structure 42 hinged to the upper end of the diagonal tension telescopic rod 41 and slidably connected to the column 31, and a rotating member 43 arranged at the lower end of the diagonal tension telescopic rod 41 and hinged to the bottom corner of the car a.

[0045] In this embodiment, in order to enhance the rigidity of the car frame and adjust the levelness of the car frame, a diagonal tie rod structure 4 is provided between the bottom corners of the car a and the vertical beam structure 3. The rotating member 43 is preferably symmetrically arranged at the corner ends of the side wall of the car a parallel to the column 31. The rotating member 43 is hinged to the diagonal tie telescopic rod 41. The upper end of the diagonal tie telescopic rod 41 is hinged to the sliding structure 42 on the column 31, so that the angle and installation position of the diagonal tie rod structure 4 can be adjusted, and the maximum structural bearing capacity can be achieved.

[0046] As a preference of this embodiment, the vertical beam structure 3 further includes a sliding groove 36 provided on the surface of the column 31 parallel to the side wall of the car a, a connecting groove 37 provided on the surface of the column 31 different from the surface where the sliding groove 36 is provided and communicating with the sliding groove 36, and a second threaded hole 38 provided on the inner wall of the sliding groove 36; the sliding structure 42 includes a connecting block 421 hinged to the upper end of the diagonal tie telescopic rod 41, passing through the connecting groove 37, and slidably connected in the sliding groove 36, a second through hole 422 penetrating through the connecting block 421, and a second bolt 423 passing through the second through hole 422 and screwed to the second threaded hole 38; the diagonal tie telescopic rod 41 includes an outer sleeve rod 411 and an inner connecting rod 412 slidably connected in the outer sleeve rod 411, a plurality of third threaded holes 413 provided on the inner connecting rod 412, a plurality of third through holes 414 provided on the outer sleeve rod 411, and a third bolt 415 passing through the third through hole 414 and connected to the third threaded hole 413.

[0047] In this embodiment, a sliding groove 36 is provided on the surface of the column 31 parallel to the side wall of the car. A connecting groove 37 is provided on the side wall of the sliding groove 36. A second threaded hole 38 is provided on the inner bottom surface of the sliding groove 36 for fixing the position of the sliding structure 42. While the sliding connection block 421 is moving, the relative positions of the outer sleeve rod 411 and the inner connecting rod 412 change. When the connecting block 421 reaches the appropriate position, the second bolt 423 passes through the second through hole 422 and is screwed to the second threaded hole 38. Subsequently, the third bolt 415 passes through the third through hole 414 and is screwed to the third threaded hole 413 to fix the length of the diagonal tie telescopic rod 41. It should be noted that the rotating member 43 and the connecting block 421 are not in the same plane. Therefore, the rotating member 43 is a universal rotating member to achieve the effective connection of the diagonal tie telescopic rod 41; the rotating member 43 includes a first rotating shaft provided on the surface of the bottom corner of the car, a sleeve sleeved on the first rotating shaft, an extension rod extending outward from the side end of the sleeve, and a second rotating shaft perpendicular to the first rotating shaft provided at the end of the extension rod. The two ends of the second rotating shaft are connected with a U-shaped rotating plate, wherein the opening of the U-shaped rotating plate faces the second rotating shaft, and the end far away from the opening is hinged to the diagonal tie telescopic rod 41. The combined action of the first rotating shaft and the second rotating shaft realizes the multi-angle rotation of the rotating member 43.

[0048] Compared with the prior art, the technical solution of this embodiment has the following advantages: the cable-stayed telescopic rod structure with adjustable position and length effectively avoids the inclination of the car caused by the load position, and further improves the stiffness of the car frame.

[0049] Embodiment 4

[0050] Based on the above embodiment, in this embodiment, the car frame is set as a detachable and flexible installation structure, as shown in the attached Figure 7 figure, and the specific details are as follows:

[0051] The car frame applicable to a home elevator further includes a positioning structure 5 arranged on the car a for installing the upper crossbeam 11 or the lower crossbeam 21; the positioning structure 5 includes a positioning column 51 arranged on the top or bottom of the car a, a slot 52 arranged on the side end of the positioning column 51, and a plug board 53 arranged on the side end of the upper crossbeam 11 or the lower crossbeam 21 and connected to the slot 52.

[0052] In this embodiment, the car frame is detachably connected to the car. The positioning column 51 on the surface of the car is fixedly connected to the surface of the car body. Multiple plug boards 53 can be arranged on the side ends of the upper crossbeam 11 and the lower crossbeam 21. The plug board 53 is inserted into the slot 52 on the positioning column 51 to form a fixation. To ensure the stability of the crossbeam, the slot 52 is preferably a through slot, and the length of the plug board 53 is greater than the inner wall depth of the slot 52.

[0053] Compared with the prior art, the technical solution of this embodiment has the following advantages: it has a more flexible installation method and is more suitable for factory mass production.

[0054] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the technical field, various modifications can be made without departing from the purpose of the present invention. These are all non-creative modifications and are protected by the Patent Law as long as they are within the scope of the claims of the present invention.

Claims

1. A car frame suitable for a home elevator, characterized in that: It comprises an upper beam structure (1) fixedly connected to the upper surface of a car (a), a lower beam structure (2) fixedly connected to the lower surface of the car (a), and a vertical beam structure (3) with two ends respectively connected to the upper beam structure (1) and the lower beam structure (2).

2. A car frame suitable for a home elevator according to claim 1, characterized in that: The upper beam structure (1) comprises an upper crossbeam (11), two inverted U-shaped beams (12) arranged at both ends of the upper crossbeam (11) and respectively slidably connected to two side edges of the upper crossbeam (11), a plurality of first positioning holes (13) arranged on the inverted U-shaped beam (12), a plurality of second positioning holes (14) arranged on the upper crossbeam (11), and positioning pins (15) arranged on the first positioning holes (13) and connected to the second positioning holes (14).

3. A car frame suitable for a home elevator according to claim 2, characterized in that: The lower beam structure (2) comprises a lower cross beam (21), two U-shaped beams (22) arranged at both ends of the lower cross beam (21) and respectively slidably connected to two side edges of the lower cross beam (21), a plurality of first through holes (23) arranged on the U-shaped beam (22), a plurality of first threaded holes (24) arranged on the lower cross beam (21), and first bolts (25) arranged on the first through holes (23) and connected to the first threaded holes (24).

4. A car frame suitable for a home elevator according to claim 3, characterized in that: The vertical beam structure (3) comprises a column (31) with two ends slidably arranged in the inverted U-shaped beam (12) and the U-shaped beam (22), respectively, a first connecting hole (32) and a second connecting hole (33) respectively arranged on the top and bottom ends of the column (31), a first connecting rod (34) passing through the first positioning hole (13) and connected to the first connecting hole (32), and a second connecting rod (35) passing through the first through hole (23) and connected to the second connecting hole (33).

5. A car frame suitable for a home elevator according to claim 4, characterized in that: It also includes a diagonal tie rod structure (4) which is arranged at the bottom corner of the car (a) and connected to the column (31).

6. A car frame suitable for a home elevator according to claim 5, characterized in that: The inclined-stayed rod structure (4) comprises an inclined-stayed telescopic rod (41), a sliding structure (42) hingedly arranged at the upper end of the inclined-stayed telescopic rod (41) and slidably connected to the column (31), and a rotating member (43) arranged at the lower end of the inclined-stayed telescopic rod (41) and hingedly connected to the bottom corner of the car (a).

7. A car frame suitable for a home elevator according to claim 6, characterized in that: The vertical beam structure (3) also includes a slide groove (36) arranged on a surface of the column (31) parallel to the side wall of the car (a), a connecting groove (37) arranged on a surface of the column (31) different from the surface of the slide groove (36) and connected to the slide groove (36), and a second threaded hole (38) arranged on the inner wall of the slide groove (36); the sliding structure (42) includes a connecting block (421) hingedly arranged at the upper end of the inclined telescopic rod (41), passing through the connecting groove (37) and slidably connected to the slide groove (36), a second bolt (423) penetrating a second through hole (422) arranged on the connecting block (421), passing through the second through hole (422) and being threadedly connected to the second threaded hole (38).

8. A car frame suitable for a home elevator according to claim 6, characterized in that: The oblique telescopic rod (41) comprises an outer rod (411) and an inner rod (412) slidably connected to the outer rod (411), a plurality of third threaded holes (413) provided on the inner rod (412), a plurality of third through holes (414) provided on the outer rod (411), and a third bolt (415) passing through the third through holes (414) and connected to the third threaded holes (413).

9. A car frame suitable for a home elevator according to claim 3, characterized in that: It also includes a positioning structure (5) arranged on the car (a) and used for installing the upper crossbeam (11) or the lower crossbeam (21).

10. A car frame suitable for a home elevator according to claim 9, characterized in that: The positioning structure (5) comprises a positioning column (51) arranged on the top or bottom of the car (a), a slot (52) arranged on the side end of the positioning column (51), and a plug plate (53) arranged on the side end of the upper crossbeam (11) or the lower crossbeam (21) and connected to the slot (52).

Images