Domestic elevator side counterweight driving structure

Abstract

The utility model discloses a household ladder side counterweight driving structure which comprises a cross beam, a main machine base is arranged at the bottom of one end of the cross beam, a beam base is arranged at the bottom of the other end of the cross beam, a bottom plate connected with the cross beam is arranged above the main machine base, a traction main machine is arranged on the bottom plate, and a first guide wheel and a second guide wheel are arranged on the cross beam. The height of the first guide wheel is lower than that of the second guide wheel, the height of the second guide wheel is consistent with that of the traction main machine, a traction belt is wound on the traction main machine, one end of the traction belt is connected with the counterweight, and the other end of the traction belt sequentially bypasses the traction main machine, the first guide wheel and the second guide wheel to be connected with the lift car. The elevator has the advantages of being compact in structure, reducing the number of the rope wheels, and improving the utilization rate of the top layer space of the hoistway and riding comfort.

Description

Technical Field

[0001] This utility model relates to an elevator drive structure, and more particularly to a side counterweight drive structure for a household elevator. Background Technology

[0002] A home elevator is an elevator installed in a private residence for the use of family members. It can greatly facilitate daily life in multi-story residential buildings, meet the vertical transportation needs of family members, especially the elderly, children or people with mobility impairments, and at the same time enhance the overall value and aesthetics of the house.

[0003] Traditional side-counterweight home elevators typically employ a traction ratio of 2:1 or 4:1 to reduce traction machine torque and cost, as illustrated in Chinese patent CN216997204U, which describes a traction machine arrangement mechanism for a side-counterweight home elevator. However, this 2:1 or 4:1 traction ratio elevator drive structure involves a large number of sheaves, resulting in a complex structure, cumbersome installation, and significant space occupation. This makes it difficult to further reduce the top floor height of the elevator shaft, forcing a reduction in the car's net height to meet overall installation requirements. Furthermore, the sheaves generate significant noise, severely impacting the elevator's passenger space and comfort. In addition, multiple sheaves cause the traction belt to bend repeatedly, making it prone to misalignment, leading to wear and shortening its lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a side counterweight drive structure for household elevators. This invention features a compact structure, reduced number of pulleys, improved utilization of the top floor space of the elevator shaft, and enhanced passenger comfort.

[0005] The technical solution of this utility model is as follows: A side counterweight drive structure for a household elevator includes a crossbeam, a main unit base at one end of the crossbeam, a beam base at the other end of the crossbeam, a base plate connected to the crossbeam above the main unit base, a traction main unit on the base plate, a first guide wheel and a second guide wheel on the crossbeam, the height of the first guide wheel being lower than the height of the second guide wheel, the height of the second guide wheel being the same as the height of the traction main unit, a traction belt wound around the traction main unit, one end of the traction belt being connected to the counterweight, and the other end of the traction belt sequentially passing around the traction main unit, the first guide wheel and the second guide wheel and connecting to the car.

[0006] In the aforementioned household ladder side counterweight drive structure, a first damping pad and a second damping pad are provided between the base plate and the main unit base. The first damping pad is located on the outside of the traction main unit, and the second damping pad is located below the crossbeam.

[0007] In the aforementioned household ladder side counterweight drive structure, a third vibration damping pad is provided between the crossbeam and the beam base.

[0008] In the aforementioned counterweight drive structure for a household elevator, a speed limiter base is provided on the beam base, and a car speed limiter with the same height as the traction host is provided on the speed limiter base.

[0009] In the aforementioned household ladder side counterweight drive structure, the main unit base is provided with three guide rails, and the beam base is provided with one guide rail.

[0010] In the aforementioned household ladder side counterweight drive structure, the bottom of the main unit base is provided with three side plates, and three guide rails are respectively installed on the three side plates. The main unit base, the bottom plate and the beam base are all provided with clearance notches for the installation of the guide rails.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The drive structure of this invention is rationally and compactly arranged, forming an integrated T-shaped structure with structural stability. A traction main unit and a second guide wheel, with roughly the same installation height, are mounted on the crossbeam, reducing the top-level space, increasing the upward movement space of the car frame, and improving the utilization rate of the top-level space in the hoistway. This invention adopts a 1:1 traction ratio, reducing the number of rope pulleys, simplifying installation and adjustment, reducing rope pulley noise, and decreasing the number of bends in the traction belt, thus extending the service life of the traction belt. The first guide wheel is located between the traction main unit and the second guide wheel, and its height is lower than that of the second guide wheel, which increases the wrap angle of the traction pulley and ensures traction force.

[0013] Therefore, this utility model features a compact structure, reduced number of rope pulleys, improved utilization of the top floor space of the shaft, and enhanced riding comfort. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the planar structure of this utility model.

[0016] Figure 3 This is a structural diagram of the clearance gap.

[0017] The markings in the attached diagram are as follows: 1. Crossbeam; 11. First guide wheel; 12. Second guide wheel; 13. Third damping pad; 2. Main unit base; 21. Traction main unit; 211. Floor plate; 22. Traction belt; 23. Counterweight; 24. Car; 25. First damping pad; 26. Second damping pad; 27. Side plate; 3. Beam base; 31. Speed ​​limiter base; 32. Car speed limiter; 33. Clearance gap; 4. Guide rail. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Example:

[0021] like Figures 1-3 As shown, a side counterweight drive structure for a household elevator includes a crossbeam 1. A main unit base 2 is provided at the bottom of one end of the crossbeam 1, and a beam base 3 is provided at the bottom of the other end of the crossbeam 1. A base plate 211 connected to the crossbeam 1 is provided above the main unit base 2. A traction main unit 21 is provided on the base plate 211. A first guide wheel 11 and a second guide wheel 12 are provided on the crossbeam 1. The height of the first guide wheel 11 is lower than the height of the second guide wheel 12, and the height of the second guide wheel 12 is the same as the height of the traction main unit 21. A traction belt 22 is wound around the traction main unit 21. One end of the traction belt 22 is connected to the counterweight 23, and the other end of the traction belt 22 passes through the traction main unit 21, the first guide wheel 11 and the second guide wheel 12 in sequence and is connected to the car 24.

[0022] The drive structure of this utility model is reasonably and compactly arranged, and the whole is an integrated T-shaped structure with stable structure. The traction host 21 and the second guide wheel 12 with basically the same installation height are set on the crossbeam 1, which reduces the top floor space, increases the space for the car frame to move upward, and improves the utilization rate of the top floor space of the hoistway. The first guide wheel 11 is located between the traction host 21 and the second guide wheel 12, and the height of the first guide wheel 11 is lower than the height of the second guide wheel 12, which can increase the wrap angle of the traction wheel and improve the traction force.

[0023] This invention uses a 1:1 traction ratio, reduces the number of rope pulleys, lowers the complexity of installation and adjustment, effectively reduces rope pulley noise, and reduces the number of bends in the traction belt 22, thereby increasing the service life of the traction belt 22.

[0024] A first damping pad 25 and a second damping pad 26 are provided between the base plate 211 and the main unit base 2. The first damping pad 25 is located on the outside of the traction main unit 21, and the second damping pad 26 is located below the crossbeam 1.

[0025] A third vibration damping pad 13 is provided between the crossbeam 1 and the beam base 3.

[0026] The base plate 211 and the main unit base 2, as well as the crossbeam 1 and the main unit base 2, are softly connected through the first vibration damping pad 25 and the second vibration damping pad 26. The crossbeam 1 and the beam base 3 are softly connected through the third vibration damping pad 13, thereby effectively reducing the vibration transmitted from the traction main unit 21 and the guide wheel to the guide rail 4, and improving the lifting stability of the car 24 and the riding comfort.

[0027] The beam base 3 is equipped with a speed limiter base 31, and the speed limiter base 31 is equipped with a car speed limiter 32 at the same height as the traction host 21. The installation height of the car speed limiter 32 is basically consistent with the installation height of the traction host 21, which can effectively increase the space for the car frame to move upward and improve the utilization rate of the top floor space of the hoistway.

[0028] The main unit base 2 is equipped with three guide rails 4, and the beam base 3 is equipped with one guide rail 4. According to the layout of this drive structure, all the load-bearing capacity on the crossbeam 1 is evenly distributed to the four guide rails 4, thereby improving structural stability.

[0029] The base of the main unit 2 has three side plates 27 at its bottom, and three guide rails 4 are respectively installed on the three side plates 27. The main unit base 2, the bottom plate 211, and the beam base 3 are all provided with clearance notches 33 for the installation of the guide rails 4. The clearance notches 33 can increase the travel space of the guide shoe moving upward, further reduce the top layer space, and improve the utilization rate of the shaft space.

[0030] The parts of this utility model not described in detail are existing technologies and therefore will not be specifically described here.

Claims

1. A side counterweight drive structure for a household ladder, characterized in that: The system includes a crossbeam (1), a main unit base (2) at one end of the crossbeam (1), a beam base (3) at the other end of the crossbeam (1), a base plate (211) connected to the crossbeam (1) above the main unit base (2), a traction main unit (21) on the base plate (211), a first guide wheel (11) and a second guide wheel (12) on the crossbeam (1), the height of the first guide wheel (11) being lower than the height of the second guide wheel (12), the height of the second guide wheel (12) being the same as the height of the traction main unit (21), a traction belt (22) wrapped around the traction main unit (21), one end of the traction belt (22) being connected to the counterweight (23), and the other end of the traction belt (22) sequentially passing around the traction main unit (21), the first guide wheel (11) and the second guide wheel (12) and connecting to the car (24).

2. The side counterweight drive structure for a household ladder according to claim 1, characterized in that: A first damping pad (25) and a second damping pad (26) are provided between the base plate (211) and the main unit base (2). The first damping pad (25) is located on the outside of the traction main unit (21), and the second damping pad (26) is located below the crossbeam (1).

3. The side counterweight drive structure for a household ladder according to claim 1, characterized in that: A third vibration damping pad (13) is provided between the crossbeam (1) and the beam base (3).

4. The side counterweight drive structure for a household ladder according to claim 1, characterized in that: The beam base (3) is provided with a speed limiter base (31), and the speed limiter base (31) is provided with a car speed limiter (32) at the same height as the traction host (21).

5. A side counterweight drive structure for a household ladder according to claim 1, characterized in that: The main unit base (2) is provided with three guide rails (4), and the beam base (3) is provided with one guide rail (4).

6. A side counterweight drive structure for a household ladder according to claim 5, characterized in that: The bottom of the main unit base (2) is provided with three side plates (27), and three guide rails (4) are respectively installed on the three side plates (27). The main unit base (2), the base plate (211) and the beam base (3) are all provided with clearance notches (33) for the installation of guide rails (4).

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