A platform elevator

Abstract

The utility model discloses a platform type elevator, backpack frame includes the upper beam of upper end, and the upper beam is located the top of car, drive host computer, fifth guide wheel, fourth guide wheel and third guide wheel are arranged in turn in the top of upper beam from left to right, and fifth guide wheel is located the lower right of drive host computer, and fourth guide wheel is located the upper right of fifth guide wheel, first elevator steel band, second elevator steel band, third elevator steel band and fourth elevator steel band are hung on drive host computer, and one end is fixed on the counterweight through counterweight rope head, and the other end is in turn after winding fifth guide wheel and fourth guide wheel, and first elevator steel band, second elevator steel band, third elevator steel band winding third guide wheel, fourth elevator steel band winding third guide wheel are all fixed on upper beam. The utility model discloses backpack frame increases the upper beam structure, and the phenomenon of partial load will not appear, and elevator steel band increases four, and the safety factor of elevator is also further improved through the uniform distribution of guide wheel on the upper beam.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to a platform elevator. Background Technology

[0002] To ensure a good viewing experience, most existing platform elevators on the market use a backpack frame structure, similar to a forklift. The car is suspended on the backpack frame, which slides along guide rails under the constraint of guide shoes. The car top rollers (or suspension points) are all on the backpack frame columns, resulting in severe off-center loading. Furthermore, only two steel belts drive the elevator car via the counterweight, leading to a low safety factor. Utility Model Content

[0003] To overcome the aforementioned problems, the purpose of this utility model is to provide a platform elevator. The backpack frame structure adds an upper beam, and the elevator steel belt is increased to four, which are evenly distributed on the upper beam through guide wheels. This results in more even force distribution on the car, smoother operation, and further improvement in the elevator's safety factor.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a platform elevator, including a car, a backpack frame set on the outside of the car, a drive host, a counterweight and guide shoes, and also including a first elevator steel belt, a second elevator steel belt, a third elevator steel belt, a fourth elevator steel belt, a third guide wheel, a fourth guide wheel and a fifth guide wheel.

[0005] The backpack frame includes an upper beam at the top, which is located above the car.

[0006] The drive unit, the fifth guide wheel, the fourth guide wheel, and the third guide wheel are arranged sequentially from left to right above the upper beam. The fifth guide wheel is located to the lower right of the drive unit, and the fourth guide wheel is located to the upper right of the fifth guide wheel.

[0007] The first elevator steel belt, the second elevator steel belt, the third elevator steel belt, and the fourth elevator steel belt are suspended on the drive host. One end is fixed to the counterweight by the counterweight rope end, and the other end is successively wrapped around the fifth guide wheel and the fourth guide wheel. After the first elevator steel belt, the second elevator steel belt, and the third elevator steel belt are wrapped around the third guide wheel, and the fourth elevator steel belt is wrapped around the third guide wheel, they are all fixed to the upper beam.

[0008] Furthermore, the first elevator steel belt is fixed to the upper beam via the first rope end, the second elevator steel belt via the second rope end, the third elevator steel belt via the third rope end, and the fourth elevator steel belt via the fourth rope end.

[0009] Furthermore, it also includes a first guide wheel and a second guide wheel fixed to the upper beam. The first guide wheel is located to the lower right of the fourth guide wheel, and the second guide wheel is located below the third guide wheel. The first elevator steel belt is wound around the first guide wheel and then fixed to the upper beam via a first rope end; the second elevator steel belt is wound around the first guide wheel and then via a second rope end; the third elevator steel belt is wound around the second guide wheel and then via a third rope end; and the fourth elevator steel belt is wound around the second guide wheel and then via a fourth rope end. By winding around the first and second guide wheels, the first, second, third, and fourth elevator steel belts become horizontal, and are then fixed to the upper beam via the first, second, third, and fourth rope ends respectively, i.e., fixed to the backpack frame. This minimizes the requirements for the top layer, makes the product structure more compact, saves space occupied at the top of the elevator shaft, and is suitable for more demanding top layer heights.

[0010] The first elevator steel belt, the second elevator steel belt, the third elevator steel belt, and the fourth elevator steel belt are evenly distributed on the upper beam by the first guide wheel and the second guide wheel, so that the car is subjected to more even force and runs more smoothly.

[0011] Furthermore, the first guide wheel is a single wheel with two slots. The first elevator steel belt is wound around one of the slots, and the second elevator steel belt is wound around the other slot.

[0012] Furthermore, there are two second guide wheels, with the third elevator steel belt wrapped around one of the second guide wheels and the fourth elevator steel belt wrapped around the other second guide wheel.

[0013] Furthermore, the fourth guide wheel is at the same horizontal position as the third guide wheel.

[0014] Furthermore, this also includes electronic safety clamps.

[0015] Furthermore, it also includes a grating ruler and a grating ruler reading head. The grating ruler reading head is fixed to the outside of the car by a bracket. The grating ruler passes through the grating ruler reading head and is fixed to the hoistway frame. The grating ruler is provided with holes of different sizes.

[0016] Furthermore, the upper end of the grating ruler is provided with a spring buckle, which is fixed to the shaft frame by the upper bracket, and the lower end of the grating ruler is provided with a spring, which is fixed to the shaft frame by the lower bracket.

[0017] The beneficial effects of this utility model are:

[0018] The backpack frame of this utility model adds an upper beam structure. The upper beam is set above the car, which will not cause uneven load, making the operation more stable and the comfort better.

[0019] This utility model increases the number of elevator steel belts to four, which are evenly distributed on the upper beam through connection with the fifth guide wheel, the fourth guide wheel and the third guide wheel, making the car more evenly stressed and further improving the safety factor of the elevator.

[0020] Another structure of this utility model adds a first guide wheel and a second guide wheel so that the first rope head, the second rope head, the third rope head and the fourth rope head on the upper beam are arranged horizontally, which minimizes the requirements for the top floor, makes the product structure more compact, saves the space occupied at the top of the elevator shaft, and is suitable for more demanding top floor heights. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the platform elevator in Embodiment 1.

[0022] Figure 2 for Figure 1 A top-view diagram of the actual structure of a platform elevator;

[0023] Figure 3 This is a schematic diagram showing the position of the grating ruler in Embodiment 1;

[0024] Figure 4 This is a structural schematic diagram of the platform elevator in Embodiment 2;

[0025] Figure 5 for Figure 4 A schematic diagram of the actual structure of a platform elevator;

[0026] Figure 6 for Figure 5 Top view.

[0027] In the diagram: 101, First rope end; 102, Second rope end; 103, Third rope end; 104, Fourth rope end; 2, Counterweight rope end; 301, First elevator steel belt; 302, Second elevator steel belt; 303, Third elevator steel belt; 304, Fourth elevator steel belt; 401, First guide wheel; 402, Second guide wheel; 403, Third guide wheel; 404, Fourth guide wheel; 405, Fifth guide wheel; 5, Drive unit; 6, Backpack frame; 601, Upper beam; 7, Car; 8, Counterweight; 9, Guide shoe; 10, Electronic safety clamp; 11, Grating ruler; 12, Shaft frame; 13, Upper support; 14, Spring buckle; 15, Spring; 16, Lower support; 17, Grating ruler reading head. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0029] This utility model discloses a platform elevator, including a car 7, a backpack frame 6 disposed outside the car 7, a drive unit 5, a counterweight 8, and guide shoes 9. It also includes a first elevator steel belt 301, a second elevator steel belt 302, a third elevator steel belt 303, a fourth elevator steel belt 304, a third guide wheel 403, a fourth guide wheel 404, and a fifth guide wheel 405. The backpack frame 6 includes an upper beam 601 located above the car 7. The drive unit 5, the fifth guide wheel 405, the fourth guide wheel 404, and the third guide wheel 403 are arranged sequentially from left to right above the upper beam 601. Wheel 405 is located to the lower right of drive host 5, and fourth guide wheel 404 is located to the upper right of fifth guide wheel 405; first elevator steel belt 301, second elevator steel belt 302, third elevator steel belt 303 and fourth elevator steel belt 304 are suspended on drive host 5, one end is fixed to counterweight 8 by counterweight rope head 2, and the other end is successively wrapped around fifth guide wheel 405 and fourth guide wheel 404. After the first elevator steel belt 301, second elevator steel belt 302 and third elevator steel belt 303 are wrapped around third guide wheel 403, and the fourth elevator steel belt 304 is wrapped around third guide wheel 403, they are all fixed to upper beam 601.

[0030] Example 1:

[0031] See Figures 1-2 This embodiment discloses a platform elevator, including a car 7, a backpack frame 6 disposed outside the car 7, a drive unit 5, a counterweight 8, guide shoes 9, a first elevator steel belt 301, a second elevator steel belt 302, a third elevator steel belt 303, a fourth elevator steel belt 304, a third guide wheel 403, a fourth guide wheel 404, and a fifth guide wheel 405; the backpack frame 6 includes an upper beam 601 at the upper end, which is located above the car 7; the drive unit 5, the fifth guide wheel 405, the fourth guide wheel 404, and the third guide wheel 403 are arranged sequentially from left to right above the upper beam 601, and the fifth guide wheel 405 is located above the drive unit 7. The fourth guide wheel 404 is located to the right and above the fifth guide wheel 405 at the lower right of the main unit 5. The first elevator steel belt 301, the second elevator steel belt 302, the third elevator steel belt 303 and the fourth elevator steel belt 304 are suspended on the drive main unit 5. One end is fixed to the counterweight 8 by the counterweight rope head 2, and the other end is wound around the fifth guide wheel 405 and the fourth guide wheel 404 in sequence. The first elevator steel belt 301 is fixed to the upper beam 601 by the first rope head 101, the second elevator steel belt 302 by the second rope head 102, the third elevator steel belt 303 by the third rope head 103 and the fourth elevator steel belt 304 by the fourth rope head 104.

[0032] The fourth guide wheel 404 and the third guide wheel 403 of this utility model can be set to be at the same horizontal position.

[0033] This utility model can also be equipped with an electronic safety clamp 10. The electronic safety clamp 10 can adopt common structures and models in the prior art, including models AH01, AH01Z, AH02Z, AH03Z, AH04, AH04Z, AK01AF / AC, AK01BF / BC, AK01ZA, AK01ZB, AK04, AK05, AK05Z, AK06A / B, AK06AZ / BZ and AK07. These models of safety clamps are suitable for elevators with different speeds and loads. The selection depends on the specific speed and load. For example, the electronic safety clamp of model AK06AZ / BZ has a rated speed ≤2.5m / s, a total permissible mass of 600-3200kg, and a guide rail width of 9-19mm.

[0034] Because electronic safety clamps eliminate the speed limiter and tensioning device found in traditional mechanical safety clamps, their structure is simpler compared to mechanical safety clamps. The space occupied by the speed limiter and tensioning device can be reduced, further improving space utilization.

[0035] See Figure 3 This utility model can also be equipped with a grating ruler 11 and a grating ruler reading head 17. The grating ruler reading head 17 is fixed to the outside of the car 7 by a bracket. The grating ruler 11 passes through the grating ruler reading head 17 and is provided with a spring buckle 14 at the upper end. It is fixed to the shaft frame 12 by an upper bracket 13. The grating ruler 11 is provided with a spring 15 at the lower end and is fixed to the shaft frame 12 by a lower bracket 16. The grating ruler 11 is tightened by the spring 15. The grating ruler 11 is provided with holes of different sizes. When the car 7 is driven by the system, the grating ruler reading head 17 will read the data of the holes on the grating ruler 11. After the car 7 completes the shaft rectification once, the data will be recorded. It is equivalent to the physical position of the elevator at each point being recorded. After the system is debugged, the elevator can realize the instructions issued by the system through this device. The elevator car is accurately positioned, the leveling is precise, there will be no misalignment, and it is safe and reliable.

[0036] Example 2:

[0037] See Figures 4-6The difference between this embodiment and Embodiment 1 is that it also includes a first guide wheel 401 and a second guide wheel 402 fixed to the upper beam 601. The first guide wheel 401 is located to the lower right of the fourth guide wheel 404, and the second guide wheel 402 is located below the third guide wheel 403. The first elevator steel belt 301 is wound around the first guide wheel 401 and passes through the first rope end 101; the second elevator steel belt 302 is wound around the first guide wheel 401 and passes through the second rope end 102; the third elevator steel belt 303 is wound around the second guide wheel 402 and passes through the third rope end 103; and the fourth elevator steel belt 304 is wound around the second guide wheel 402 and passes through the fourth rope end 104, all of which are fixed to the upper beam 601. There is one first guide wheel 401 with two slots. The first elevator steel belt 301 is wound around one slot, and the second elevator steel belt 302 is wound around the other slot. There are two second guide wheels 402. The third elevator steel belt 303 is wrapped around one of the second guide wheels 402, and the fourth elevator steel belt 304 is wrapped around the other second guide wheel 402.

[0038] By wrapping around the first guide wheel 401 and the second guide wheel 402, the first elevator steel belt 301, the second elevator steel belt 302, the third elevator steel belt 303, and the fourth elevator steel belt 304 are turned to a horizontal state, and then fixed to the upper beam 601 by the first rope end 101, the second rope end 102, the third rope end 103, and the fourth rope end 104 respectively, that is, fixed to the backpack frame 6. This minimizes the requirements for the top floor, makes the product structure layout more compact, saves the space occupied at the top of the elevator shaft, and is suitable for more demanding top floor heights.

[0039] The first elevator steel belt 301, the second elevator steel belt 302, the third elevator steel belt 303, and the fourth elevator steel belt 304 are evenly distributed on the upper beam 601 by the first guide wheel 401 and the second guide wheel 402, so that the car 7 is subjected to more even force and runs more smoothly.

[0040] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A platform elevator, comprising a car (7), a backpack rack (6) disposed outside the car (7), a drive unit (5), a counterweight (8), and guide shoes (9), characterized in that: It also includes a first elevator steel belt (301), a second elevator steel belt (302), a third elevator steel belt (303), a fourth elevator steel belt (304), a third guide wheel (403), a fourth guide wheel (404), and a fifth guide wheel (405); The backpack frame (6) includes an upper beam (601) at the top, which is located above the car (7); The drive host (5), the fifth guide wheel (405), the fourth guide wheel (404) and the third guide wheel (403) are arranged from left to right above the upper beam (601), the fifth guide wheel (405) is located to the lower right of the drive host (5) and the fourth guide wheel (404) is located to the upper right of the fifth guide wheel (405); The first elevator steel belt (301), the second elevator steel belt (302), the third elevator steel belt (303), and the fourth elevator steel belt (304) are suspended on the drive host (5). One end is fixed to the counterweight (8) by the counterweight rope head (2), and the other end is wound around the fifth guide wheel (405) and the fourth guide wheel (404) in sequence. After the first elevator steel belt (301), the second elevator steel belt (302), and the third elevator steel belt (303) are wound around the third guide wheel (403), and the fourth elevator steel belt (304) is wound around the third guide wheel (403), they are all fixed to the upper beam (601).

2. The platform elevator according to claim 1, characterized in that: The first elevator steel belt (301) is fixed to the upper beam (601) through the first rope end (101), the second elevator steel belt (302) through the second rope end (102), the third elevator steel belt (303) through the third rope end (103), and the fourth elevator steel belt (304) through the fourth rope end (104).

3. The platform elevator according to claim 1, characterized in that: It also includes a first guide wheel (401) and a second guide wheel (402) fixed on the upper beam (601). The first guide wheel (401) is located to the lower right of the fourth guide wheel (404), and the second guide wheel (402) is located below the third guide wheel (403). The first elevator steel belt (301) is wrapped around the first guide wheel (401) and passes through the first rope end (101), the second elevator steel belt (302) is wrapped around the first guide wheel (401) and passes through the second rope end (102), the third elevator steel belt (303) is wrapped around the second guide wheel (402) and passes through the third rope end (103), and the fourth elevator steel belt (304) is wrapped around the second guide wheel (402) and passes through the fourth rope end (104), all of which are fixed on the upper beam (601).

4. The platform elevator according to claim 3, characterized in that: The first guide wheel (401) is one with two slots. The first elevator steel belt (301) is wound around one of the slots, and the second elevator steel belt (302) is wound around the other slot.

5. The platform elevator according to claim 3, characterized in that: There are two second guide wheels (402), the third elevator steel belt (303) is wrapped around one of the second guide wheels (402), and the fourth elevator steel belt (304) is wrapped around the other second guide wheel (402).

6. The platform elevator according to claim 2, 3, 4, or 5, characterized in that: The fourth guide wheel (404) is at the same horizontal position as the third guide wheel (403).

7. The platform elevator according to claim 6, characterized in that: It also includes electronic safety clamps (10).

8. The platform elevator according to claim 7, characterized in that: It also includes a grating ruler (11) and a grating ruler reading head (17). The grating ruler reading head (17) is fixed to the outside of the car (7) by a bracket. The grating ruler (11) passes through the grating ruler reading head (17) and is fixed on the hoistway frame (12). The grating ruler (11) is provided with holes of different sizes.

9. The platform elevator according to claim 8, characterized in that: The upper end of the grating ruler (11) is provided with a spring buckle (14), which is fixed to the shaft frame (12) by the upper bracket (13). The lower end of the grating ruler (11) is provided with a spring (15), which is fixed to the shaft frame (12) by the lower bracket (16).

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