Platform type elevator

Abstract

The platform type elevator is characterized in that a backpack frame comprises an upper beam at the upper end, and the upper beam is located above a lift car; the driving main machine, the fifth guide wheel, the fourth guide wheel and the third guide wheel are sequentially arranged above the upper beam from left to right, the fifth guide wheel is located on the lower right portion of the driving main machine, and the fourth guide wheel is located on the upper right portion of the fifth guide wheel. The first elevator steel belt, the second elevator steel belt, the third elevator steel belt and the fourth elevator steel belt are hung on the driving main machine, one ends are fixed on the counterweight through counterweight rope heads, and the other ends are wound on the fifth guide wheel and the fourth guide wheel in sequence; the first elevator steel belt, the second elevator steel belt and the third elevator steel belt are fixed to the upper beam after being wound around the third guide wheel, and the fourth elevator steel belt is fixed to the upper beam after being wound around the third guide wheel. The upper beam structure is additionally arranged on the knapsack frame, so that the unbalance loading phenomenon is avoided; the number of the elevator steel belts is increased to be four, the elevator steel belts are evenly distributed on the upper beam through the guide wheels, and the safety coefficient of the elevator is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a platform elevator. Background Art

[0002] To ensure a visually appealing cabin, existing platform elevators on the market generally utilize a backpack frame structure, similar to a forklift. The cabin is suspended from the backpack frame, which slides along the guide rails, restrained by guide shoes. The car's top sheaves (or suspension points) are located on the backpack frame's columns, resulting in severe unbalanced loading. Furthermore, the elevator car is driven by only two steel belts, which provide a low safety factor. Summary of the Invention

[0003] In order to overcome the above-mentioned problems, the purpose of the present invention is to provide a platform-type elevator, in which an upper beam is added to the backpack frame structure, and the number of elevator steel belts is increased to four. The elevator belts are evenly distributed on the upper beam through guide wheels, so that the car is more evenly stressed, the operation is smoother, and the safety factor of the elevator is further improved.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: a platform elevator, including a car, a backpack rack arranged outside the car, a drive main unit, a counterweight and a guide shoe, 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 rack includes an upper beam at an upper end, and the upper beam is located above the car;

[0006] The driving main unit, the fifth guide wheel, the fourth guide wheel and the third guide wheel are arranged above the upper beam from left to right, the fifth guide wheel is located at the lower right of the driving main unit, and the fourth guide wheel is located at 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 driving main unit, one end of which is fixed to the counterweight through a counterweight rope head, and the other end is wound around the fifth guide wheel and the fourth guide wheel in sequence. Then, the first elevator steel belt, the second elevator steel belt, the third elevator steel belt are wound around the third guide wheel, and the fourth elevator steel belt is wound around the third guide wheel and is fixed to the upper beam.

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

[0009] Furthermore, the invention further includes a first guide wheel and a second guide wheel fixed to the upper beam, wherein the first guide wheel is located to the right below the fourth guide wheel, and the second guide wheel is located below the third guide wheel. The first elevator steel belt is secured to the upper beam via a first rope end after being wound around the first guide wheel, the second elevator steel belt is secured to the upper beam via a second rope end after being wound around the first guide wheel, the third elevator steel belt is secured to the upper beam via a third rope end after being wound around the second guide wheel, and the fourth elevator steel belt is secured to the upper beam via a fourth rope end after being wound around the second guide wheel. By being wound around the first and second guide wheels, the first, second, third, and fourth elevator steel belts are turned horizontally and then secured to the upper beam, i.e., secured to the backpack frame, via the first, second, third, and fourth rope ends, respectively. This minimizes the requirements for the top floor, makes the product structure more compact, saves space at the top of the elevator shaft, and is suitable for more demanding top floor height requirements.

[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 through the first guide wheel and the second guide wheel, so that the car is more evenly stressed and runs more smoothly.

[0011] Furthermore, the first guide wheel is one and has 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, the third elevator steel belt is wound around one of the second guide wheels, and the fourth elevator steel belt is wound around the other second guide wheel.

[0013] Furthermore, the fourth guide wheel and the third guide wheel are at the same horizontal position.

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

[0015] Furthermore, it also includes a grating scale and a grating scale reader, the grating scale reader is fixed to the outside of the car through a bracket, the grating scale passes through the grating scale reader and is fixed to the shaft frame, and the grating scale is provided with holes of different sizes.

[0016] Furthermore, a spring buckle is provided at the upper end of the grating ruler and is fixed to the well frame through an upper bracket, and a spring is provided at the lower end of the grating ruler and is fixed to the well frame through a lower bracket.

[0017] The beneficial effects of the present invention are:

[0018] The backpack rack of the present invention is equipped with an upper beam structure, which is arranged above the car, so that there will be no unbalanced load, and the operation is more stable and more comfortable.

[0019] The elevator steel belts of the present invention are increased to four and are evenly distributed on the upper beam through the connection with the fifth guide wheel, the fourth guide wheel and the third guide wheel. The force on the car is more evenly distributed, and the safety factor of the elevator is further improved.

[0020] Another structure of the present invention increases the first guide wheel and the 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, thereby minimizing the requirements for the top floor, making the product structure more compact, saving the space occupied at the top of the elevator shaft, and being suitable for more demanding top floor heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the platform elevator of Example 1;

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

[0023] Figure 3 Schematic diagram of the position of the grating ruler in Example 1;

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

[0025] Figure 5 for Figure 4 Schematic diagram of the physical structure of a platform elevator;

[0026] Figure 6 for Figure 5 Top view of .

[0027] In the figure: 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, driving host; 6, backpack frame; 601, upper beam; 7, car; 8, counterweight; 9, guide shoe; 10, electronic safety clamp; 11, grating scale; 12, hoistway frame; 13, upper bracket; 14, spring buckle; 15, spring; 16, lower bracket; 17, grating scale reader. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below 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 precise definition of the protection scope of the present invention.

[0029] The present invention discloses a platform elevator, comprising a car 7, a backpack frame 6 arranged outside the car 7, a driving main unit 5, a counterweight 8 and a guide shoe 9, and further comprising 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, and the upper beam 601 is located above the car 7; the driving main unit 5, the fifth guide wheel 405, the fourth guide wheel 404 and the third guide wheel 403 are arranged in sequence from left to right above the upper beam 601, and the fifth guide wheel 405 is located at the lower right side of the driving main unit 5, and the fourth guide wheel 404 is located at the upper right side 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 driving main unit 5, one end of which is fixed to the counterweight 8 through 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 on the upper beam 601.

[0030] Example 1:

[0031] See also Figure 1-Figure 2 The present embodiment discloses a platform elevator, comprising a car 7, a backpack frame 6 arranged outside the car 7, a driving main unit 5, a counterweight 8, a guide shoe 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, and the upper beam 601 is located above the car 7; the driving main unit 5, the fifth guide wheel 405, the fourth guide wheel 404 and the third guide wheel 403 are arranged in sequence from left to right above the upper beam 601, and the fifth guide wheel 405 is located at the driving main unit. At the lower right side of the main machine 5, the fourth guide wheel 404 is located at the upper right side 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 driving main machine 5, one end is fixed to the counterweight 8 through the counterweight rope head 2, and the other end is wound around the fifth guide wheel 405 and the fourth guide wheel 404 in turn, and the first elevator steel belt 301 is fixed to the upper beam 601 through the first rope head 101, the second elevator steel belt 302 is fixed to the second rope head 102, the third elevator steel belt 303 is fixed to the third rope head 103, and the fourth elevator steel belt 304 is fixed to the fourth rope head 104.

[0032] The fourth guide wheel 404 and the third guide wheel 403 of the present invention can be arranged at the same horizontal position.

[0033] The present invention may further include an electronic safety clamp 10. The electronic safety clamp 10 may adopt common structures and models in the prior art. Models include 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 of different speeds and loads. The selection is based on the specific speed and load. For example, the electronic safety clamp model AK06AZ / BZ has a rated speed of ≤2.5 m / s, a total allowable mass of 600-3200 kg, and a guide rail width of 9-19 mm.

[0034] Since the electronic safety clamp eliminates the speed limiter and tensioning device structures on the traditional mechanical safety clamp, the electronic safety clamp has a simpler product structure than the mechanical safety clamp, and the space occupied by the speed limiter and tensioning device can be compressed, further improving space utilization.

[0035] See also Figure 3 The present invention can also be provided with a grating ruler 11 and a grating ruler reader 17. The grating ruler reader 17 is fixed to the outside of the car 7 through a bracket. The grating ruler 11 passes through the grating ruler reader 17. A spring buckle 14 is provided at the upper end and fixed to the shaft frame 12 through the upper bracket 13. A spring 15 is provided at the lower end of the grating ruler 11 and fixed to the shaft frame 12 through the lower bracket 16. The grating ruler 11 is tightened by the spring 15. The grating ruler 11 is provided with holes of different sizes. The car 7 is driven to run through the system. The grating ruler reader 17 will read the data of the holes on the grating ruler 11. After the car 7 is rectified and the shaft is run throughout once, the data will be recorded, which is equivalent to the physical position of the elevator at each point being recorded. After the system debugging is completed, the elevator can implement the instructions issued by the system through the device. The elevator car is scaled and positioned, the leveling is accurate, there will be no staggered layer phenomenon, and it is safe and reliable.

[0036] Example 2:

[0037] See also Figure 4-Figure 6This embodiment differs from Example 1 in that it further 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 right below 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 then passes through the first rope end 101; the second elevator steel belt 302 is wound around the first guide wheel 401 and then passes through the second rope end 102; the third elevator steel belt 303 is wound around the second guide wheel 402 and then passes through the third rope end 103; and the fourth elevator steel belt 304 is wound around the second guide wheel 402 and then passes through the fourth rope end 104. All of these are fixed to the upper beam 601. The first guide wheel 401 is single and has two notches. The first elevator steel belt 301 is wound around one notch, and the second elevator steel belt 302 is wound around the other notch. There are two second guide wheels 402 , the third elevator steel belt 303 is wound around one of the second guide wheels 402 , and the fourth elevator steel belt 304 is wound around the other second guide wheel 402 .

[0038] By winding 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 into a horizontal state, and then fixed to the upper beam 601 through the first rope head 101, the second rope head 102, the third rope head 103 and the fourth rope head 104 respectively, that is, fixed to the backpack frame 6, thereby minimizing the requirements for the top floor, making the product structure more compact, saving the space occupied at the top of the elevator shaft, and being 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 through the first guide wheel 401 and the second guide wheel 402 , so that the car 7 is more evenly stressed and runs more smoothly.

[0040] The above embodiments are only for illustrating the technical concept and features of the present invention. Its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A platform elevator comprising a car (7), a backpack rack (6) arranged outside the car (7), a driving main unit (5), a counterweight (8) and a guide shoe (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 upper end, and the upper beam (601) is located above the car (7); The driving main unit (5), the fifth guide wheel (405), the fourth guide wheel (404) and the third guide wheel (403) are arranged in sequence from left to right above the upper beam (601), the fifth guide wheel (405) is located at the lower right of the driving main unit (5), and the fourth guide wheel (404) is located at 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 driving main unit (5), one end of which is fixed to the counterweight (8) through the counterweight rope head (2), and the other end of which 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 after 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 on the upper beam (601) through the first rope end (101), the second elevator steel belt (302) is fixed on the upper beam (601) through the second rope end (102), the third elevator steel belt (303) is fixed on the upper beam (601) through the third rope end (103), and the fourth elevator steel belt (304) is fixed on the upper beam (601) through the fourth rope end (104).

3. The platform elevator according to claim 1, characterized in that: The invention also includes a first guide wheel (401) and a second guide wheel (402) fixed on the upper beam (601), wherein the first guide wheel (401) is located at 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 then passes through the first rope head (101); the second elevator steel belt (302) is wound around the first guide wheel (401) and then passes through the second rope head (102); the third elevator steel belt (303) is wound around the second guide wheel (402) and then passes through the third rope head (103); and the fourth elevator steel belt (304) is wound around the second guide wheel (402) and then passes through the fourth rope head (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 and has two notches. The first elevator steel belt (301) is wound around one of the notches, and the second elevator steel belt (302) is wound around the other notch.

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 wound around one of the second guide wheels (402), and the fourth elevator steel belt (304) is wound 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) and the third guide wheel (403) are at the same horizontal position.

7. The platform elevator according to claim 6, characterized in that: Also included is an electronic safety clamp (10).

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

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 well frame (12) through an upper bracket (13); the lower end of the grating ruler (11) is provided with a spring (15), which is fixed to the well frame (12) through a lower bracket (16).

Images