Counterweight frame structure for elevator transformation
By adding U-shaped brackets and fastening nuts to the outside of the side beams, the problem of mismatched guide rail spacing in old elevators was solved, achieving low-cost elevator retrofitting while maintaining existing production processes and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2026-03-20
AI Technical Summary
The spacing between the guide rails of old elevators is wider than the current standard, which makes the existing standard design inapplicable. Replacing the counterweight frame is costly, and existing renovation solutions have problems such as incalculable costs or the need for complex modifications to the counterweight frame.
A U-shaped bracket is installed on the outside of the side beam and a fastening nut is welded to meet the installation distance between the side beam and the guide rail, while maintaining the use of the existing upper and lower beams. The renovation of old elevators is achieved through detachable connection.
This approach meets the needs of retrofitting old elevators at low cost, maintains existing production processes, reduces retrofitting costs, and avoids the high cost of re-molding the heavy blocks.
Smart Images
Figure CN224015132U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to old elevator reconstruction technical field especially is related to a counterweight frame structure for elevator reconstruction. BACKGROUND
[0002] In order to guarantee the safety of residents, some old elevators need to be reconstructed because of high failure rate, high maintenance cost, high use risk, poor ride comfort, equipment aging and other reasons. Generally, the service life of elevator guide rails is relatively long, and the replacement cost is too high, so most people choose to keep the guide rails and replace the counterweight frame. However, with the development of the elevator industry for many years, technology is constantly innovated, and standards are constantly improved. The guide rail spacing of most old elevators is wider than the current standard, which makes some current standard designs not fully applicable to some old elevator structures. Therefore, the structure needs to be changed to meet this demand, which can also reduce the replacement cost.
[0003] For the above problems, there are generally two solutions: one is to prepare a counterweight frame for the target of reconstruction, but since the size of the counterweight frame changes, the size of the counterweight block also needs to change, which means that a new mold needs to be opened, and the cost is immeasurable. The second is still to use the existing counterweight frame, which avoids the problem of re-opening the mold for the counterweight block, but due to the size difference, the counterweight frame needs to be specifically changed.
[0004] Therefore, the utility model is urgently needed to provide a counterweight frame structure for elevator reconstruction. INVENTION CONTENTS
[0005] The utility model aims at providing a counterweight frame structure for elevator reconstruction, which compensates for the incoordination between the existing standard elevator and the old elevator at low cost through the structural design of the fixed support installed outside the side beam, and meets the reconstruction needs of the old elevator.
[0006] A counterweight frame structure for elevator reconstruction, comprising a counterweight frame, a U-shaped support is welded and installed on the outer side of the upper and lower ends of the counterweight frame, and a plurality of fastening nuts are welded at intervals on the outer side of the U-shaped support.
[0007] The U-shaped support comprises a connecting plate connected perpendicularly to the outer side of the counterweight frame, and an installation plate is connected correspondingly on the outer side of the two connecting plates, and each fastening nut is distributed at intervals on the installation plate.
[0008] Further, the counterweight frame comprises an upper beam and a lower beam arranged horizontally and at intervals, and two side beams arranged vertically are installed correspondingly at the two ends of the upper beam and the lower beam; the upper beam and the side beam, and the lower beam and the side beam are detachably connected by fasteners.
[0009] The U-shaped support is installed on the outer side of the upper and lower ends of the side beam.
[0010] Further, the fastener comprises a bolt or a rivet.
[0011] Further, the side beam comprises two side plates and an intermediate plate arranged in a U shape, and a U-shaped support is mounted outside the intermediate plate; the side plates extend to the side surface of the upper beam or the lower beam and are detachably connected with the upper beam or the lower beam through the fastener.
[0012] Further, the upper beam and the lower beam both meet the existing counterweight frame design standard.
[0013] Further, the width of the connecting plate is 120 mm.
[0014] Further, the type of the fastening nut is DIN929M8.
[0015] Further, the length of the upper beam and the lower beam is 800-1200 mm.
[0016] Further, the height of the side beam is 2600-3500 mm.
[0017] Further, the distance between each fastening nut is 63 mm.
[0018] Compared with the prior art, the counterweight frame structure for elevator reconstruction has the following advantages:
[0019] The counterweight frame structure for elevator reconstruction has the following advantages: the structure design of the side beam outside the installation of the fixed support is low in cost and can compensate for the incoordination between the existing standard elevator and the old elevator, the U-shaped support is installed outside the side beam and the fastening nut is welded, so that the installation distance between the side beam and the guide rail is met, the upper beam, the lower beam and the counterweight block under the existing standard can be used, the production process of the current elevator is maintained, and the reconstruction cost is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0021] Figure 1 It is a schematic view (perspective view) of the counterweight frame structure for elevator reconstruction in the utility model;
[0022] Figure 2 It is a schematic view (top view) of the side beam in the utility model.
[0023] Reference signs:
[0024] 1, side beam; 101, side plate; 102, middle plate; 3, U-shaped support; 301, connecting plate; 302, mounting plate; 4, fastening nut; 5, upper beam; 6, lower beam. DETAILED DESCRIPTION
[0025] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] As shown in Figure 1 , Figure 2 The present application provides a counterweight frame structure for elevator reconstruction, which comprises a counterweight frame, U-shaped supports 3 are welded and mounted on the outer sides of the upper and lower ends of the counterweight frame, and a plurality of fastening nuts 4 are welded at intervals on the outer sides of the U-shaped supports 3.
[0029] The U-shaped support 3 comprises a connecting plate 301 connected perpendicularly to the outer side of the counterweight frame, and a mounting plate 302 is connected to the outer side of the two connecting plates 301, and each fastening nut 4 is distributed at intervals on the mounting plate 302.
[0030] The counterweight frame structure for elevator reconstruction provided by the utility model makes up for the incoordination between the existing standard elevator and the old elevator at low cost through the structural design of the fixed support installed outside the side beam, and since the old elevator guide rail spacing is wider than the current standard, the mounting spacing between the side beam and the guide rail is met by installing the U-shaped support outside the side beam and welding the fastening nut, so that the upper beam, the lower beam and the counterweight under the existing standard can continue to be used, the production process of the current elevator is maintained on the basis of meeting the reconstruction needs of the old elevator, and the reconstruction cost is greatly reduced.
[0031] As shown in Figure 1 , Figure 2 , the counterweight frame comprises the upper beam 5 and the lower beam 6 arranged horizontally and at intervals, and two side beams 1 arranged vertically and installed at both ends of the upper beam 5 and the lower beam 6; the upper beam 5 and the side beam 1 and the lower beam 6 and the side beam 1 are detachably connected through fasteners.
[0032] The U-shaped support 3 is installed on the outer side surface of the upper end and the lower end of the side beam 1.
[0033] In the embodiment, the fastener comprises a bolt or a rivet.
[0034] As shown in Figure 1 , Figure 2 , the side beam 1 comprises two side plates 101 and an intermediate plate 102 arranged in a U shape, and the U-shaped support 3 is installed on the outer side of the intermediate plate 102; the side plate 101 extends to the side surface of the upper beam 5 or the lower beam 6 and is detachably connected with the upper beam 5 or the lower beam 6 through the fastener.
[0035] In the embodiment, the upper beam 5 and the lower beam 6 both meet the existing counterweight design standard.
[0036] In the embodiment, the width of the connecting plate 301 is 120mm.
[0037] In the embodiment, the model of the fastening nut 4 is DIN929M8.
[0038] In the embodiment, the length of the upper beam 5 and the lower beam 6 is 800-1200mm.
[0039] In the embodiment, the height of the side beam 1 is 2600-3500mm.
[0040] In the embodiment, the spacing of each fastening nut 4 is 63mm.
[0041] The use of the utility model comprises the following steps:
[0042] 1) connect the lower beam 6 and the two side beams 1 through the fastener respectively;
[0043] 2) according to the elevator use requirement, stack the counterweight on the lower beam 6 in sequence;
[0044] 3) The upper beam 5 is installed above the two side beams 1 by fasteners;
[0045] 4) The counterweight frame is connected with the guide rail of the old elevator by the fastening nuts 4 on the U-shaped support 3, so that the installation condition of the old elevator is met, and the transformation cost of the old elevator is saved to the maximum.
[0046] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A counterweight frame structure for elevator retrofitting, characterized in that: The counterweight frame is provided, and U-shaped brackets (3) are welded and installed on the outer sides of the upper and lower ends of the counterweight frame. Multiple fastening nuts (4) are welded at intervals on the outer sides of the U-shaped brackets (3). The U-shaped bracket (3) includes a connecting plate (301) that is perpendicularly connected to the outer side of the counterweight frame. The outer sides of the two connecting plates (301) are connected to mounting plates (302), and fastening nuts (4) are distributed at intervals on the mounting plates (302).
2. The counterweight frame structure for elevator retrofitting according to claim 1, characterized in that: The counterweight frame includes a horizontally spaced upper beam (5) and a lower beam (6), with vertically arranged side beams (1) installed at both ends of the upper beam (5) and the lower beam (6); the upper beam (5) and the side beam (1), and the lower beam (6) and the side beam (1) are detachably connected by fasteners. The U-shaped bracket (3) is installed on the outer sides of the upper and lower ends of the side beam (1).
3. The counterweight frame structure for elevator retrofitting according to claim 2, characterized in that: Fasteners include bolts or rivets.
4. The counterweight frame structure for elevator retrofitting according to claim 3, characterized in that: The side beam (1) includes two side plates (101) and a middle plate (102) arranged in a U-shape, and a U-shaped bracket (3) is installed on the outside of the middle plate (102); the side plate (101) extends to fit against the side surface of the upper beam (5) or the lower beam (6) and is detachably connected to the upper beam (5) or the lower beam (6) by fasteners.
5. The counterweight frame structure for elevator retrofitting according to claim 4, characterized in that: Both the upper beam (5) and the lower beam (6) meet the existing counterweight frame design standards.
6. The counterweight frame structure for elevator retrofitting according to claim 5, characterized in that: The width of the connecting plate (301) is 120mm.
7. The counterweight frame structure for elevator retrofitting according to claim 6, characterized in that: The fastening nut (4) is of model number DIN929M8.
8. The counterweight frame structure for elevator retrofitting according to claim 7, characterized in that: The lengths of the upper beam (5) and the lower beam (6) are 800-1200mm.
9. The counterweight frame structure for elevator retrofitting according to claim 8, characterized in that: The height of the side beam (1) is 2600-3500mm.
10. The counterweight frame structure for elevator retrofitting according to claim 9, characterized in that: The spacing between each fastening nut (4) is 63mm.