Counterweight frame of elevator

Abstract

The utility model relates to a counterweight frame of an elevator, which comprises an upper beam, a first upright post, a second upright post, a lower beam and a tension adjusting device, and the top of the first upright post is connected to the first end of the upper beam; the top of the second stand column is connected to the second end of the upper beam, and the second stand column and the first stand column extend in the vertical direction and are oppositely arranged; the bottom of the first stand column is connected to the first end of the lower beam. The bottom of the second stand column is connected to the second end of the lower beam. The tension adjusting device comprises a mounting shaft assembly, the tension adjusting device is rotatably mounted in the middle of the upper beam through the mounting shaft assembly, and at least two hoisting ropes extending in the vertical direction are mounted on the tension adjusting device on the two sides of the mounting shaft assembly respectively. The tension adjusting device on the counterweight frame can intuitively and timely find tension difference on the elevator hoist rope and adjust the tension difference, so that stable operation of an elevator is ensured, and comfort of taking the elevator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and more specifically, to a counterweight frame for an elevator. Background Art

[0002] With the development of society, elevators are more and more widely used in our daily life, bringing great convenience to our travel and improving the quality of life. During the operation of an elevator, the traction ropes are very crucial components. However, due to factors such as long-term use or wear, the tensions of multiple traction ropes may vary, and the imbalance of the traction rope tensions may cause the elevator to stop or swing abnormally, posing a great potential safety hazard.

[0003] Therefore, it is very important to be able to intuitively and timely detect the tension difference on the elevator traction ropes and make adjustments.

[0004] In particular, for a home elevator, the hoistway space of the home elevator is small, so a 1:1 rope winding structure is usually adopted, and the rope ends of the traction ropes are respectively installed on the upper parts of the counterweight and the car. In this case, the device that can intuitively and timely detect the tension difference on the elevator traction ropes and make adjustments cannot be too complex and cannot occupy a large space.

[0005] In view of this, there is an urgent need for an improved counterweight frame including a tension adjustment device.

[0006] The information disclosed in the background art part of the present utility model is only intended to increase the understanding of the overall background of the present utility model, and should not be regarded as an admission or any form of implication that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0007] The purpose of the present utility model is to provide a counterweight frame for an elevator including a tension adjustment device, which can intuitively and timely detect the tension difference on the elevator traction ropes and make adjustments.

[0008] According to one aspect of the present utility model, there is provided a counterweight frame for an elevator, which may include: an upper beam, a first upright column, a second upright column, a lower beam, and a tension adjustment device, wherein the top of the first upright column is connected to the first end of the upper beam; the top of the second upright column is connected to the second end of the upper beam, and the second upright column and the first upright column extend along the vertical direction and are arranged opposite to each other; the bottom of the first upright column is connected to the first end of the lower beam, and the bottom of the second upright column is connected to the second end of the lower beam; the tension adjustment device includes a mounting shaft assembly, and the tension adjustment device is rotatably mounted to the middle of the upper beam through the mounting shaft assembly, and at least two traction ropes extending in the vertical direction are respectively mounted to the tension adjustment device on both sides of the mounting shaft assembly.

[0009] The counterweight frame of the elevator described above, wherein the number of hoisting ropes can be set to two, and the two hoisting ropes are symmetrically mounted to the tension adjusting device with respect to the mounting shaft assembly; the upper beam may include a first plate member and a second plate member spaced apart from each other.

[0010] The counterweight frame of the elevator described above, wherein the tension adjusting device may further include: a mounting frame and a rope socket assembly. The mounting frame is disposed between the first plate member and the second plate member of the upper beam; the rope socket assembly is mounted to the mounting frame; the mounting shaft assembly passes through the mounting frame and is mounted to the first plate member and the second plate member of the upper beam; the number of rope socket assemblies is the same as the number of hoisting ropes, and each hoisting rope is fixed to a corresponding rope socket assembly.

[0011] The counterweight frame of the elevator described above, wherein the mounting frame may include: a mounting plate, a first side plate, a second side plate, and a plurality of connecting plates. The rope socket assembly is mounted to the mounting plate; the first side plate and the second side plate are disposed on opposite sides of the mounting plate and are parallel to each other; the plurality of connecting plates connect the first side plate and the second side plate.

[0012] The counterweight frame of the elevator described above, wherein the first side plate and the second side plate may be respectively provided with circular rotation holes; the first plate member and the second plate member may be respectively provided with circular through holes; the positions of the rotation holes of the first side plate and the second side plate correspond to the positions of the through holes of the first plate member and the second plate member.

[0013] The counterweight frame of the elevator described above, wherein the mounting shaft assembly may include: a mounting shaft and a limiting plate. The mounting shaft is formed as a cylinder and sequentially passes through the second plate member, the second side plate, the first side plate, and the first plate member. A protrusion is provided on the outer peripheral surface of the first end portion of the mounting shaft, and a groove is provided on the outer peripheral surface of the second end portion of the mounting shaft; the limiting plate is fixed to the first plate member, and the lower end portion of the limiting plate is placed in the groove.

[0014] The counterweight frame of the elevator described above, wherein each rope socket assembly may include: a rope socket rod, a spring portion, and a rope socket nut. The first end portion of the rope socket rod passes through the mounting plate, and the second end portion of the rope socket rod is connected to the hoisting rope; the spring portion is sleeved on the rope socket rod and is located on the side of the mounting plate away from the hoisting rope; the rope socket nut is threadedly connected to the first end portion of the rope socket rod, and both ends of the spring portion respectively abut against the rope socket nut and the mounting plate.

[0015] The counterweight frame of the elevator described above, wherein the spring part may include: a spring seat and a compression spring, the spring seat is arranged adjacent to the rope socket nut; the compression spring is arranged between the spring seat and the mounting plate, and both ends of the compression spring respectively abut against the spring seat and the mounting plate.

[0016] The counterweight frame of the elevator described above, wherein the protruding part may be formed in a ring shape, and the outer diameter of the protruding part is greater than the inner diameter of the perforation; the mounting shaft is in clearance fit with the rotating hole; the limiting plate is fixed to the first plate member by a fastener.

[0017] The counterweight frame of the elevator described above, wherein the counterweight frame is for a household elevator with a winding ratio of 1:1.

[0018] According to another aspect of the present invention, there is provided a household elevator, which includes the counterweight frame described above.

[0019] The beneficial effect of the present invention is that: the tension difference on the elevator traction rope can be intuitively and timely detected and adjusted, ensuring the stable operation of the elevator and improving the comfort of taking the elevator. Description of the Drawings

[0020] Figure 1 A three-dimensional schematic diagram of the counterweight frame of the elevator according to the exemplary embodiment of the present invention from the first viewing angle.

[0021] Figure 2 A three-dimensional schematic diagram of the counterweight frame of the elevator according to the exemplary embodiment of the present invention from the second viewing angle.

[0022] Figure 3 A partial enlarged schematic diagram of the counterweight frame of the elevator according to the exemplary embodiment of the present invention.

[0023] Figure 4 A partial exploded schematic diagram of the tension adjustment device of the counterweight frame of the elevator according to the exemplary embodiment of the present invention.

[0024] Figure 5 An assembly schematic diagram of the mounting frame and the rope socket assembly according to the exemplary embodiment of the present invention.

[0025] Description of the Reference Numerals:

[0026] 1 Upper beam

[0027] 11 First plate member

[0028] 111 Perforation

[0029] 12 Second plate member

[0030] 121 Perforation

[0031] 2 First vertical column

[0032] 3 Second vertical column

[0033] 4 Lower beam

[0034] 5 Tension adjustment device

[0035] 51 Mounting shaft assembly

[0036] 511 Mounting shaft

[0037] 5111 Protrusion

[0038] 5112 Groove

[0039] 512 Limit plate

[0040] 52 Mounting frame

[0041] 521 Mounting plate

[0042] 522 First side plate

[0043] 5221 Rotation hole

[0044] 523 Second side plate

[0045] 5231 Rotation hole

[0046] 524 Connecting plate

[0047] 53 Rope end assembly

[0048] 531 Rope end rod

[0049] 532 Spring part

[0050] 5321 Spring seat

[0051] 5322 Compression spring

[0052] 533 Rope end nut. Specific embodiments

[0053] It should be understood that the drawings are not drawn to scale and show various features presented in a slightly simplified manner to illustrate the basic principles of the present invention. In the drawings of the present invention, the same reference numerals represent the same or equivalent parts of the present invention.

[0054] Reference will now be made in detail to various embodiments of the present invention, examples of which are shown in the accompanying drawings and described below. Although the present invention will be described in conjunction with the exemplary embodiments of the present invention, it will be understood that this specification is not intended to limit the present invention to those exemplary embodiments. On the contrary, the present invention is intended to cover not only the exemplary embodiments of the present invention, but also various alternative forms, modifications, equivalents, and other embodiments included within the spirit and scope of the present invention as defined by the appended claims.

[0055] The specific structures and functions of the embodiments of the present invention disclosed herein are described only for the purpose of illustrating the embodiments of the present invention. Without departing from the spirit and important features of the present invention, the present invention can be implemented in many different forms. Therefore, the embodiments of the present invention are disclosed only for the purpose of illustration and should not be construed as limiting the present invention.

[0056] Although terms such as "first" and "second" may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the teachings of the present invention, the first element discussed below may be referred to as the second element. Similarly, the second element may also be referred to as the first element.

[0057] Certain terms are used throughout the application documents of the present invention to refer to specific system components. As those skilled in the art will recognize, the same components can generally be referred to by different names, and thus the application documents of the present invention are not intended to distinguish components that are different only in name but not in function. In the documents of the present invention, the terms "including", "comprising", and "having" are used in an open-ended form and should therefore be interpreted to mean "including but not limited to...".

[0058] Hereinafter, the exemplary embodiments of the present invention will be described more specifically with reference to the accompanying drawings.

[0059] Figure 1 A three-dimensional schematic view of the counterweight frame of an elevator according to an exemplary embodiment of the present invention from a first viewing angle, Figure 2 A three-dimensional schematic view of the counterweight frame of an elevator according to an exemplary embodiment of the present invention from a second viewing angle, Figure 3 A partially enlarged schematic view of the counterweight frame of an elevator according to an exemplary embodiment of the present invention, Figure 4 A partially exploded schematic view of the tension adjustment device of the counterweight frame of an elevator according to an exemplary embodiment of the present invention, Figure 5Assembly schematic diagram of the installation frame and the rope end assembly for an exemplary embodiment of the present utility model.

[0060] Referring to Figures 1 to 5 , the present utility model relates to a counterweight frame of an elevator. The counterweight frame of the elevator may include an upper beam 1, a first upright column 2, a second upright column 3, a lower beam 4, and a tension adjusting device 5. Among them, the top of the first upright column 2 may be connected to the first end of the upper beam 1, that is, the left end shown in the figure; the top of the second upright column 3 may be connected to the second end of the upper beam 1, that is, the right end shown in the figure. The second upright column 3 and the first upright column 2 extend along the vertical direction and are arranged opposite to each other; the bottom of the first upright column 2 may be connected to the first end of the lower beam 4, that is, the left end shown in the figure, and the bottom of the second upright column 3 may be connected to the second end of the lower beam 4, that is, the right end shown in the figure; the tension adjusting device 5 may include a mounting shaft assembly 51. The tension adjusting device 5 is rotatably mounted to the middle of the upper beam 1 through the mounting shaft assembly 51. At least two hoisting ropes extending in the vertical direction are respectively mounted to the tension adjusting device 5 on both sides of the mounting shaft assembly 51.

[0061] According to an exemplary embodiment of the present utility model, the upper beam 1, the first upright column 2, the second upright column 3, and the lower beam 4 may be formed by profiles or steel plates. The connection between the upper beam 1 and the first upright column 2 and the second upright column 3 may adopt connection methods such as welding, bolts, and riveting. The connection between the lower beam 4 and the first upright column 2 and the second upright column 3 may also adopt connection methods such as welding, bolts, and riveting.

[0062] In the shown example, the upper beam 1 is connected to the first upright column 2 and the second upright column 3, and the lower beam 4 is connected to the first upright column 2 and the second upright column 3 by bolts, thereby forming a generally rectangular frame structure.

[0063] In an exemplary embodiment of the present utility model, the number of hoisting ropes is set to two, and the two hoisting ropes are symmetrically mounted to the tension adjusting device 5 with respect to the mounting shaft assembly 51. However, those skilled in the art should understand that the number of hoisting ropes is not limited thereto.

[0064] Furthermore, the upper beam 1 may include a first plate member 11 and a second plate member 12 spaced apart from each other. Referring to Figure 1 . The first plate member 11 and the second plate member 12 may be formed into flat plate shapes. The first upright column 2 and the second upright column 3 may be positioned between the first plate member 11 and the second plate member 12 and connected to the first plate member 11 and the second plate member 12.

[0065] According to an exemplary embodiment of the present utility model, the tension adjustment device 5 may further include: a mounting frame 52 and a rope end assembly 53. Among them, the mounting frame 52 is disposed between the first plate member 11 and the second plate member 12 of the upper beam 1. The rope end assembly 53 is mounted to the mounting frame 52. The mounting shaft assembly 51 passes through the mounting frame 52 and is mounted to the first plate member 11 and the second plate member 12 of the upper beam 1. The number of the rope end assemblies 53 is the same as the number of the traction ropes. Each traction rope is fixed to the corresponding rope end assembly 53.

[0066] In the illustrated example, the number of the rope end assemblies 53 is set to two. With reference to Figure 5 .

[0067] Furthermore, the mounting frame 52 may include: a mounting plate 521, a first side plate 522, a second side plate 523, and a plurality of connecting plates 524. Among them, the rope end assembly 53 is mounted to the mounting plate 521. The first side plate 522 and the second side plate 523 are disposed on opposite sides of the mounting plate 521 and are parallel to each other. The plurality of connecting plates 524 connect the first side plate 522 and the second side plate 523.

[0068] More specifically, one end of each of the plurality of connecting plates 524 is connected to the first side plate 522, and the other end is connected to the second side plate 523.

[0069] In the illustrated example, the number of the plurality of connecting plates 524 is set to five, and the plurality of connecting plates 524 are spaced apart from each other. However, those skilled in the art should understand that the number of the connecting plates is not limited thereto. According to the actual application situation, any number of connecting plates can be set.

[0070] Through the arrangement of the plurality of connecting plates, the overall strength of the mounting frame can be enhanced.

[0071] Preferably, the first side plate 522 and the second side plate 523 are parallel to the first plate member 11 and the second plate member 12 of the upper beam 1.

[0072] In addition, the first side plate 522 and the second side plate 523 are respectively provided with circular rotation holes 5221, 5231, and the first plate member 11 and the second plate member 12 are respectively provided with circular through holes 111, 121. Among them, the positions of the rotation holes 5221, 5231 of the first side plate 522 and the second side plate 523 correspond to the positions of the through holes 111, 121 of the first plate member 11 and the second plate member 12.

[0073] In an embodiment of the present utility model, the inner diameters of the rotation holes 5221, 5231 of the first side plate 522 and the second side plate 523 may be slightly larger than the inner diameters of the through holes 111, 121 of the first plate member 11 and the second plate member 12.

[0074] In another embodiment of the present invention, the inner diameters of the rotating holes 5221 , 5231 of the first side plate 522 and the second side plate 523 may be equal to the inner diameters of the through holes 111 , 121 of the first plate 11 and the second plate 12 .

[0075] The mounting shaft assembly 51 may include: a mounting shaft 511 and a limiting plate 512, wherein the mounting shaft 511 is formed into a cylindrical shape and passes through the second plate 12, the second side plate 523, the first side plate 522 and the first plate 11 in sequence, a protrusion 5111 is provided on the outer peripheral surface of one end of the mounting shaft 511, and a groove 5112 is provided on the outer peripheral surface of the other end of the mounting shaft 511; the limiting plate 512 is fixed to the first plate 11, and the lower end of the limiting plate 512 is placed in the groove 5112.

[0076] In detail, the installation shaft 511 may sequentially pass through the through hole 121 of the second plate 12 , the rotation hole 5231 of the second side plate 523 , the rotation hole 5221 of the first side plate 522 , and the through hole 111 of the first plate 11 .

[0077] In another embodiment of the utility model, when the inner diameter of the rotating holes 5221, 5231 is equal to the inner diameter of the through holes 111, 121, a rotating recess can be formed at the position of the mounting shaft 511 corresponding to the rotating holes 5221, 5231, and the rotating recess is formed in a recessed manner on the outer peripheral surface of the mounting shaft 511, so as to facilitate the rotation of the mounting frame 52 around the mounting shaft 511.

[0078] In an exemplary embodiment of the present invention, the protrusion 5111 is formed in a ring shape, and the ring-shaped protrusion 5111 is protrudingly formed on the outer peripheral surface of one end of the installation shaft 511 along the circumferential direction of the installation shaft 511, and the outer diameter of the protrusion 5111 is larger than the inner diameter of the through hole 121.

[0079] In another embodiment of the utility model, the protrusion may be formed in the form of a block protruding in the radial direction of the installation shaft on the outer circumferential surface of one end of the installation shaft. However, those skilled in the art should understand that the form of the protrusion should not be limited to this, and any other form that can achieve the same effect is acceptable, and will not be listed one by one in this article.

[0080] The groove 5112 is formed on the outer circumferential surface of the other end portion of the installation shaft 511 to be recessed to a predetermined depth in the circumferential direction of the installation shaft 511 .

[0081] The installation shaft 511 is loosely matched with the rotating holes 5221 and 5231 , and the limiting plate 512 can be fixed to the first plate 11 by fasteners (such as bolts).

[0082] When there are differences in the tension on the hoisting ropes, the mounting frame 52 can rotate around the mounting shaft 511. In this form similar to a "see-saw", the tension differences on the elevator hoisting ropes can be visually and promptly detected.

[0083] Each rope socket assembly 53 may include: a rope socket rod 531, a spring portion 532, and a rope socket nut 533. Among them, one end of the rope socket rod 531 can pass through the mounting plate 521, and the other end of the rope socket rod 531 can be connected to the hoisting rope; the spring portion 532 can be sleeved on the rope socket rod 531 and is located on the side of the mounting plate 521 away from the hoisting rope; the rope socket nut 533 can be threadedly connected to one end of the rope socket rod 531, and both ends of the spring portion 532 respectively abut against the rope socket nut 533 and the mounting plate 521.

[0084] With reference to Figure 5 , the lower end portion of the rope socket rod 531 passes through the mounting plate 521, and the upper end portion of the rope socket rod 531 is connected to the hoisting rope; the spring portion 532 is sleeved on the section of the lower end portion of the rope socket rod 531 that passes through the mounting plate 521; the rope socket nut 533 is threadedly connected to the lower end portion of the rope socket rod 531.

[0085] In particular, a section of external thread with a predetermined length (not shown) is provided on the lower end portion of the rope socket rod 531, an internal thread (not shown) is provided on the inner circumferential surface of the rope socket nut 533, and the internal thread of the rope socket nut 533 cooperates with the external thread section of the rope socket rod 531, so that the hoisting rope can be installed on the mounting frame 52.

[0086] In addition, when there are differences in the tension on the hoisting ropes, by adjusting the position of the rope socket nut 533 on the external thread section of the rope socket rod 531, the tension on the hoisting ropes can be restored to a balanced state, ensuring the stable operation of the elevator and improving the comfort of taking the elevator.

[0087] Furthermore, the spring portion 532 may include: a spring seat 5321 and a compression spring 5322. Among them, the spring seat 5321 is arranged adjacent to the rope socket nut 533; the compression spring 5322 is arranged between the spring seat 5321 and the mounting plate 521, and both ends of the compression spring 5322 respectively abut against the spring seat 5321 and the mounting plate 521. With reference to Figure 5 .

[0088] In another embodiment of the present utility model, spring seats may be respectively provided at both ends of the compression spring.

[0089] The counterweight frame of the elevator of the present utility model can be used for a household elevator with a rope winding ratio of 1:1, and it has the advantages of simple structure, being able to visually and promptly detect and adjust the tension differences on the elevator hoisting ropes.

[0090] The foregoing description of the specific exemplary embodiments of the present invention has been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and it is obvious that many modifications and variations are possible in light of the above teachings. The selection and description of the exemplary embodiments are intended to explain certain principles of the invention and its practical application so that those skilled in the art can make and utilize the various exemplary embodiments of the invention, as well as its different alternative forms and modifications. The scope of the invention is intended to be defined by the appended claims and their equivalents.

[0091] Unless otherwise specifically stated or otherwise understood within the context in which it is used, conditional language such as "able to", "can", "may", or "could" generally is intended to convey that certain embodiments can, but need not, include certain features and / or elements. Thus, such conditional language generally is not intended to imply that one or more embodiments are in any way required to include the said features and / or elements.

Claims

1. A counterweight frame of an elevator, characterized in that: include: Upper beam; a first column, a top of which is connected to the first end of the upper beam; A second column, a top of which is connected to the second end of the upper beam, the second column and the first column extending in a vertical direction and arranged opposite to each other; A lower beam, wherein the bottom of the first column is connected to the first end of the lower beam, and the bottom of the second column is connected to the second end of the lower beam; as well as The tension adjusting device comprises a mounting shaft assembly, through which the tension adjusting device can be rotatably mounted to the middle part of the upper beam, and at least two traction ropes extending in the vertical direction are respectively mounted to the tension adjusting device on both sides of the mounting shaft assembly.

2. The counterweight frame of an elevator according to claim 1, characterized in that: The number of the traction ropes is set to two, and the two traction ropes are mounted to the tension adjustment device symmetrically with respect to the mounting shaft assembly; The upper beam includes a first plate and a second plate that are spaced apart from each other.

3. The counterweight frame of an elevator according to claim 2, characterized in that: The tension adjustment device further comprises: A mounting frame disposed between the first plate member and the second plate member of the upper beam; and a rope head assembly mounted to the mounting frame; Wherein, the mounting shaft assembly is mounted to the first plate member and the second plate member of the upper beam through the mounting frame; The number of rope head assemblies is the same as the number of traction ropes, and each traction rope is fixed to a corresponding rope head assembly.

4. The counterweight frame of an elevator according to claim 3, characterized in that: The mounting frame comprises: a mounting plate to which the rope head assembly is mounted; A first side plate and a second side plate, the first side plate and the second side plate being disposed on opposite sides of the mounting plate and parallel to each other; and A plurality of connecting plates connect the first side plate and the second side plate.

5. The counterweight frame of an elevator according to claim 4, characterized in that; The first side plate and the second side plate are respectively provided with a circular rotation hole; The first plate and the second plate are respectively provided with circular perforations; The positions of the rotating holes of the first side plate and the second side plate correspond to the positions of the through holes of the first plate member and the second plate member.

6. The counterweight frame of an elevator according to claim 5, characterized in that: The mounting shaft assembly comprises: a mounting shaft formed in a cylindrical shape and sequentially passing through the second plate, the second side plate, the first side plate, and the first plate, a first end portion of the mounting shaft having a protrusion disposed on an outer circumferential surface, and a second end portion of the mounting shaft having a groove disposed on an outer circumferential surface; and A limiting plate is fixed to the first plate, and a lower end portion of the limiting plate is placed in the groove.

7. The counterweight frame of an elevator according to claim 6, characterized in that: Each rope head assembly includes: A rope head rod, a first end of which passes through the mounting plate, and a second end of which is connected to the traction rope; a spring portion, which is sleeved on the rope head rod and is located on a side of the mounting plate away from the traction rope; and A rope head nut is threadedly connected to the first end of the rope head rod, and two ends of the spring portion are respectively against the rope head nut and the mounting plate.

8. The counterweight frame of an elevator according to claim 7, characterized in that: The spring portion comprises: a spring seat disposed adjacent to the rope nut; and A compression spring is arranged between the spring seat and the mounting plate, and two ends of the compression spring abut against the spring seat and the mounting plate respectively.

9. The counterweight frame of an elevator according to claim 6, characterized in that: The protrusion is formed in a ring shape, and the outer diameter of the protrusion is larger than the inner diameter of the through hole; The installation shaft is clearance-matched with the rotation hole; The limiting plate is fixed to the first plate by a fastener.

10. The counterweight frame of an elevator according to any one of claims 1 to 9, characterized in that: The counterweight frame is used for a home elevator with a roping ratio of 1:1.

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