Improved elevator
By adding return rope wheels and opening rope holes in the elevator, the problems of high construction difficulties and environmental pollution have been solved, and a rapid and low-cost elevator upgrade has been achieved.
Patent Information
- Application Number
- CN202422534814.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-18
AI Technical Summary
When renovating old elevators in the existing technology, the load-bearing beams of the original machine room need to be removed, resulting in high construction difficulty, serious dust and noise pollution, long construction period, and affecting residents' lives.
By setting a set of first return rope wheels on the top of the car and two second return rope wheels on the top of the counterweight body, and opening a rope hole in the elevator shaft, retaining the original building structure and adding traction components to achieve the transformation of a 1:1 elevator into a 2:1 elevator.
Protect the original building structure to the greatest extent, reduce construction damage, shorten construction cycle, reduce costs, avoid dust and noise pollution, and reduce construction interference to residents' lives.
Smart Images
Figure CN223213611U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of elevators, in particular to a modified elevator. Background Art
[0002] After a long period of use, elevators become outdated and need to be replaced to ensure passenger safety and transport efficiency. For example, converting an old 1:1 elevator to a new 2:1 elevator typically requires dismantling existing elevator components.
[0003] Taking into account the equipment cost, the current renovation of old 1:1 elevators usually adopts the method of retaining the guide rails, guide rail brackets and other components to update them into new 2:1 elevators. Figure 4 As shown in Figure 5, it is a schematic diagram of the layout of a 1:1 elevator. Figure 6 and Figure 7 The following is a schematic diagram of the layout of a 2:1 elevator. Due to the significant differences in the layout and structure between a 1:1 elevator and a 2:1 elevator, the conventional approach is to remove the original load-bearing beams in the machine room and re-arrange the layout. Figure 8 and Figure 9 The figure below shows a schematic diagram of a 2:1 elevator layout after retrofitting a conventional 1:1 old elevator. This requires destroying the existing civil engineering structure, which is not only difficult to construct but also creates significant dust and noise pollution. It also requires secondary renovation of the existing building, which takes a long time and seriously disrupts residents' daily lives. Further improvements are therefore possible. Summary of the Invention
[0004] In order to solve the problems existing in the background technology, the utility model proposes a modified elevator.
[0005] A modified elevator comprises an elevator shaft and a car, wherein an elevator machine room is provided in the elevator shaft, first guide rail brackets are fixedly installed on the left and right side walls of the elevator shaft, a car guide rail is fixedly installed on the other end of the first guide rail bracket, and the car is slidably connected to the car guide rail; two groups of second guide rail brackets are fixedly installed on the rear side wall of the elevator shaft, counterweight guide rails are fixedly installed on the opposite sides of the two groups of second guide rail brackets, a counterweight body is slidably connected between the two groups of counterweight guide rails, a first return pulley is provided on the top of the car, two groups of second return pulleys are provided on the top of the counterweight body, and a traction assembly is connected to the first return pulley and the second return pulley.
[0006] Based on the above, the traction assembly includes a first rope head beam, two groups of second rope head beams, a traction wheel, a guide wheel and a first steel wire rope, the first rope head beam is fixedly installed on the inner wall of the elevator room, and the first rope head beam is located directly above the car, the two groups of second rope head beams are fixedly installed on the inner wall of the elevator room, and the two groups of second rope head beams are located directly above the counterweight body; the traction wheel and guide wheel are installed on the inner wall of the elevator room, and the traction wheel and guide wheel are located directly above between the car and the counterweight body, and the guide wheel is located on the rear lower side of the traction wheel; one end of the first steel wire rope is fixedly installed on the bottom of the first rope head beam, passes around the lower surface of the first return rope pulley, then passes around the traction wheel, and finally fits on the right side of the guide wheel, the other end of the first wire rope is fixedly installed with two groups of second steel wire ropes, the two groups of second wire ropes extend downward from between the two groups of second return rope pulleys and pass around the lower surfaces of the two groups of second return rope pulleys, the other ends of the two groups of second wire ropes are fixedly installed on the bottom of the two groups of second rope head beams respectively, and the traction machine is fixedly installed at the center of the traction wheel.
[0007] Based on the above, three first rope holes and two second rope holes are opened on the floor of the machine room of the elevator shaft. The two groups of the second rope holes are used for the first steel wire rope to pass through, and the three first rope holes are used for the two groups of the second steel wire rope to pass through.
[0008] Based on the above, the two groups of the second return rope pulleys are bilaterally symmetrical about the center of the counterweight body.
[0009] Based on the above, two groups of load-bearing beams distributed on the left and right are fixedly installed on the inner wall of the elevator room. The first rope head beam, two groups of second rope head beams, guide wheels, and traction machines are all arranged on the two groups of load-bearing beams. The first rope head beam, two groups of second rope head beams, guide wheels, and traction machines are fixedly installed on the inner wall of the elevator room through the load-bearing beams.
[0010] Based on the above, the first return pulley is located at the center of the top of the car.
[0011] The present invention has substantial features and progress compared with the prior art. Specifically, the present invention can complete the work of converting a 1:1 elevator into a 2:1 elevator by arranging a group of first return rope pulleys on the top of the car, arranging two groups of second return rope pulleys on the top of the counterweight body, and excavating two groups of first rope holes and two groups of second rope holes. It protects the original building civil engineering structure to the greatest extent, does not change the original stress structure, and has almost no destructive construction to the original building. It has the advantages of a short installation design cycle, convenient and fast construction, a short construction period, effectively reducing the project construction cost, almost no generation of construction waste, no dust pollution and noise pollution to the environment, and no disturbance to the public during the construction process. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the elevator shaft plan layout of the present utility model.
[0013] Figure 2 It is a schematic diagram of the plane layout of the computer room of the present utility model.
[0014] Figure 3 It is a structural diagram of the traction assembly of the utility model.
[0015] Figure 4 It is a schematic diagram of the hoistway plan layout of a 1:1 elevator in the prior art.
[0016] Figure 5 It is a schematic diagram of the plane layout of the machine room of a 1:1 elevator in the prior art.
[0017] Figure 6 It is a schematic diagram of the hoistway plan layout of a 2:1 elevator in the prior art.
[0018] Figure 7 It is a schematic diagram of the plane layout of the machine room of a 2:1 elevator in the prior art.
[0019] Figure 8 The diagram is a schematic diagram of the hoistway layout for converting a 1:1 elevator into a 2:1 elevator in the prior art.
[0020] Figure 9 The diagram is a plan view of the machine room layout for converting a 1:1 elevator into a 2:1 elevator in the prior art.
[0021] DESCRIPTION OF REFERENCE NUMERALS: 100, elevator shaft; 200, elevator car; 300, first guide rail bracket; 400, elevator car guide rail; 500, second guide rail bracket; 600, counterweight guide rail; 700, counterweight body; 800, traction assembly; 900, first rope hole; 1000, second rope hole; 1100, load-bearing beam; 201, first return rope pulley; 701, second return rope pulley;
[0022] 801. First rope head beam; 802. Second rope head beam; 803. Traction sheave; 804. Guide sheave; 805. First steel wire rope; 806. Second steel wire rope; 807. Traction machine. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] like Figure 1-Figure 3As shown, a modified elevator includes an elevator shaft 100 and a car 200. An elevator machine room is provided within the elevator shaft. First guide rail brackets 300 are fixedly mounted on the left and right side walls of the elevator shaft 100. Car guide rails 400 are fixedly mounted on the other ends of the first guide rail brackets 300. The car 200 is slidably connected to the car guide rails 400, and the car 200 is guided by the car guide rails 400. Two sets of second guide rail brackets 500 are fixedly mounted on the rear side wall of the elevator shaft 100. Counterweight guide rails 600 are fixedly mounted on opposite sides of the two sets of second guide rail brackets 500. A counterweight body 700 is slidably connected between the two sets of counterweight guide rails 600, and the counterweight body 700 is guided by the counterweight guide rails 600.
[0025] A first return sheave 201 is installed on top of the car 200, located at the center of the car's top. Two sets of second return sheaves 701 are installed on top of the counterweight 700, symmetrically about the center of the counterweight. The traction assembly 800 is connected to the first and second return sheaves 201 and 701. The first guide rail bracket 300, car guide rail 400, second guide rail bracket 500, and counterweight guide rail 600 are retained components from the original 1:1 old elevator.
[0026] When in use, the traction assembly 800 includes a first rope head beam 801, two sets of second rope head beams 802, a traction wheel 803, a guide wheel 804 and a first steel rope 805. The first rope head beam 801 is fixedly mounted on the inner wall of the elevator room, and the first rope head beam 801 is located directly above the car 200. The two sets of second rope head beams 802 are fixedly mounted on the inner wall of the elevator room, and the two sets of second rope head beams 802 are located directly above the counterweight body 700.
[0027] The traction sheave 803 and guide sheave 804 are mounted on the inner wall of the elevator machine room, with a traction machine 807 fixedly mounted at the center of the traction sheave 803. Two sets of load-bearing beams 1100, distributed left and right, are fixedly mounted on the inner wall of the elevator machine room. The first rope head beam 801, two sets of second rope head beams 802, guide sheave 804, and traction machine 807 are all mounted on the two sets of load-bearing beams 1100. The first rope head beam 801, two sets of second rope head beams 802, guide sheave 804, and traction machine 807 are fixedly mounted to the inner wall of the elevator machine room via the load-bearing beams 1100. The first rope head beam 801 is fixedly set between the two groups of load-bearing beams 1100, the two groups of second rope head beams 802 are respectively set on the two groups of load-bearing beams 1100, the traction machine 807 is installed on the load-bearing beam 1100 on the left, and the guide wheel 804 is set on the load-bearing beam 1100 on the right, and the load-bearing beam 1100 on the left is the original load-bearing beam 1100 of the old elevator in a 1:1 ratio.
[0028] The traction sheave 803 and guide sheave 804 are located directly above and between the car 200 and the counterweight body 700, with the guide sheave 804 located at the rear lower side of the traction sheave 803. One end of the first steel rope 805 is fixedly mounted to the bottom of the first rope end beam 801. It passes under the first return pulley 201, then over the traction sheave 803, and finally abuts against the right side of the guide sheave 804. Two sets of second steel ropes 806 are fixedly mounted to the other end of the first steel rope 805. These two sets of second steel ropes 806 extend downward between the two sets of second return pulleys 701 and pass under their lower surfaces. The other ends of the two sets of second steel ropes 806 are respectively fixedly mounted to the bottoms of the two sets of second rope end beams 802. This completes the installation of the first steel rope 805 and the second steel rope 806.
[0029] The elevator shaft 100's machine room floor features three first rope holes 900 and two second rope holes 1000. The two sets of second rope holes 1000 are used to pass through the first steel rope 805, while the three first rope holes 900 are used to pass through the two sets of second steel ropes 806. This allows for the first and second steel ropes 805 and 806 to avoid unnecessary movement. The center first rope hole 900 is an original hole from the original 1:1 elevator.
[0030] Therefore, when converting an old 1:1 elevator into a 2:1 elevator, it is only necessary to add one set of first return rope pulleys 201 and two sets of second return rope pulleys 701, and to drill two sets of second rope holes 1000 and two sets of first rope holes 900. This can protect the original building structure from damage to the greatest extent.
[0031] In the prior art, Figure 4-Figure 9 As shown, compared Figure 4 and Figure 6 From the hoistway plan layout diagram, it is found that the counterweight center (vertical direction) of the 1:1 elevator is completely coincident with the center (vertical direction) of the car. The offset between the counterweight center (vertical direction) and the center (vertical direction) of the car of the 2:1 elevator is P = D1 / 2 (i.e. half the diameter of the return sheave).
[0032] contrast Figure 5 and Figure 7 The schematic diagram of the computer room layout shows:
[0033] The 2:1 elevator machine room layout is much more complicated than the 1:1 machine room layout. Figure 7 The center line of the middle wheel (car return rope wheel, traction wheel, guide wheel) coincides with the center line of the car and is tangent to the outer circle of the return rope wheel. Figure 6 It can be seen that the center line of the wheel (car top return rope wheel, traction wheel, guide wheel) (i.e. Figure 4The center line of the left / right load-bearing beam arrangement) is also offset from the center of the counterweight pulley by D1 / 2 (that is, half the diameter of the counterweight return rope pulley), while the center line of the left / right load-bearing beam arrangement of a 1:1 elevator completely coincides with the center of the counterweight, and the 2:1 elevator machine room plan layout has more car rope head beams and counterweight rope head beams than the 1:1 machine room plan layout.
[0034] Based on the above situation, if a 1:1 elevator is converted to a 2:1 elevator, a machine room is required:
[0035] a. Dig out holes for installing the counterweight rope head beam;
[0036] b. Remove the original load-bearing beams and drill holes for the left and right load-bearing beams according to the 2:1 equipment room layout;
[0037] Figure 8-Figure 9 This is a schematic diagram of the layout of a conventional 1:1 old elevator that retains its guide rails, guide rail brackets and other components and is updated to a 2:1 elevator.
[0038] In this solution, the car guide rails and counterweight guide rails are not removed, and the original layout structure (1:1 structure, the center of the car and the center of the counterweight completely coincide) is retained. It is transformed into a 2:1 structure and return pulleys are added to the upper part of the car and counterweight. At this time, the outer circle of the return pulley cannot coincide with the center line of the wheels (car top return pulley, traction pulley, guide pulley). However, in order to ensure normal traction conditions, it is necessary to at least adjust the angle of the guide pulley and traction pulley, and at the same time, the left / right load-bearing beams are arranged at an angle, and the inclination angle is usually 8°-10°.
[0039] This solution requires designers to carry out a large number of non-standard designs when designing specific solutions, which increases the difficulty of design. In addition, the original load-bearing beams need to be removed, holes need to be re-drilled, and the load-bearing beams need to be rearranged, which will cause a lot of dust pollution and noise pollution. Due to the need for oblique arrangement, the original load-bearing beams are not long enough, and new load-bearing beams need to be distributed, which also increases the equipment cost to a certain extent. For installation and construction, the difficulty of laying out the lines and positioning also reduces the installation accuracy to a certain extent, and has an adverse effect on the subsequent operation effect. The re-drilled holes also need to be backfilled and renovated twice, which takes a long construction period and seriously interferes with the normal life of residents.
[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A modified elevator, characterized by: The elevator shaft comprises an elevator machine room, wherein the elevator shaft is provided with a first guide rail bracket fixedly mounted on both left and right side walls of the elevator shaft, and a car guide rail is fixedly mounted on the other end of the first guide rail bracket, and the car is slidably connected to the car guide rail; Two sets of second guide rail brackets are fixedly installed on the rear side wall of the elevator shaft, and counterweight guide rails are fixedly installed on opposite sides of the two sets of second guide rail brackets. The counterweight body is slidably connected between the two sets of counterweight guide rails. A first return pulley is provided on the top of the car, and two sets of second return pulleys are provided on the top of the counterweight body. The first return pulley and the second return pulley are connected to a traction assembly.
2. The modified elevator according to claim 1, characterized in that: The traction assembly includes a first rope head beam, two sets of second rope head beams, a traction wheel, a guide wheel and a first steel rope, wherein the first rope head beam is fixedly mounted on the inner wall of the elevator machine room and is located directly above the car, and the two sets of second rope head beams are fixedly mounted on the inner wall of the elevator machine room and are located directly above the counterweight body; The traction sheave and guide sheave are mounted on the inner wall of the elevator machine room, a traction machine is fixedly mounted at the center of the traction sheave, and the traction sheave and guide sheave are located directly above the car and the counterweight body, and the guide sheave is located at the rear lower side of the traction sheave; One end of the first steel wire rope is fixedly installed on the bottom of the first rope head beam, passes around the lower surface of the first return rope pulley, then passes around the traction wheel, and finally fits to the right side of the guide wheel. The other end of the first steel wire rope is fixedly installed with two groups of second steel wire ropes. The two groups of second steel wire ropes extend downward from between the two groups of second return rope pulleys and pass around the lower surfaces of the two groups of second return rope pulleys. The other ends of the two groups of second steel wire ropes are respectively fixedly installed on the bottom of the two groups of second rope head beams.
3. The modified elevator according to claim 2, characterized in that: Three first rope holes and two second rope holes are provided on the floor of the machine room of the elevator shaft. The two groups of the second rope holes are used for passing the first steel wire ropes, and the three first rope holes are used for passing the two groups of the second steel wire ropes.
4. The modified elevator according to claim 1, characterized in that: The two groups of the second return rope pulleys are symmetrical about the center of the counterweight body.
5. The modified elevator according to claim 2, characterized in that: Two groups of load-bearing beams distributed on the left and right are fixedly installed on the inner wall of the elevator room. The first rope head beam, two groups of second rope head beams, guide wheels, and traction machines are all arranged on the two groups of load-bearing beams. The first rope head beam, two groups of second rope head beams, guide wheels, and traction machines are fixedly installed on the inner wall of the elevator room through the load-bearing beams.
6. The modified elevator according to claim 1, characterized in that: The first return sheave is located at the top center of the car.