Vibration reduction guide rail for elevator

Abstract

The utility model discloses a vibration reduction guide rail for an elevator, which is characterized by comprising a guide part (1) with a U-shaped cross section, guide surfaces (2) are formed on two sides of the guide part (1), two sides of an opening of the guide part (1) are firstly contracted inwards to form connecting parts (3) and then are bent outwards to form mounting parts (4), the inner side of the opening of the guide part (1) is filled with an adhesive tape (5), and the adhesive tape (5) extends to a position between the two connecting parts (3); the outer side end of the mounting part (4) is bent towards one side of the connecting part (3) to form a reinforcing rib (6); a plurality of silencing holes (7) are formed in the guide surface (2), and the rubber strips (5) extend into the silencing holes (7) and are flush with the guide surface (2); and the silencing holes (7) are distributed in two rows. The utility model has the advantages that the noise and the potential safety hazard can be reduced.

Description

Technical Field

[0001] The utility model belongs to the field of elevator guide rails, and particularly relates to a vibration damping guide rail for an elevator. Background Art

[0002] In an elevator, the guide rail is used to maintain the moving direction of the car / counterweight. The guide rail is slidably connected to the car / counterweight through a guide shoe, and the guide rail is connected to the elevator hoistway wall through a bracket. During the lifting and lowering process of the car / counterweight, the guide shoe collides with the guide rail, causing the guide rail to vibrate and generate frictional noise. Since the guide rail is connected to the hoistway wall at multiple points through the bracket, most of its positions are suspended and are more prone to resonance, further amplifying the noise. This noise will be transmitted to the rooms in the adjacent hoistway, disturbing the residents.

[0003] In existing elevators, the method of reducing the vibration noise of the guide rail is mainly carried out by improving the bracket, that is, adding a rubber block between the bracket and the guide rail. The rubber block absorbs the vibration energy of the guide rail to reduce the guide rail noise. However, the rubber block has the risk of aging. After the guide rail and the bracket are fixed, there is a large compressive stress on the rubber block, which further accelerates the aging of the rubber block. When the rubber block loses its elasticity, it is easy for the bracket and the guide rail to become loose, and the guide rail loses its guiding function for the car / counterweight, and certain safety hazards will be formed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a vibration damping guide rail for an elevator. The utility model has the advantages of reducing noise and safety hazards.

[0005] The technical solution of the utility model: A vibration damping guide rail for an elevator, including a U-shaped guiding part, two sides of the guiding part form guiding surfaces, both sides of the opening of the guiding part first contract inward to form connecting parts, and then bend outward to form mounting parts. A rubber strip is filled in the inner side of the opening of the guiding part, and the rubber strip extends between the two connecting parts.

[0006] In the foregoing vibration damping guide rail for an elevator, the outer end of the mounting part bends towards the connecting part to form a reinforcing rib.

[0007] In the foregoing vibration damping guide rail for an elevator, a plurality of sound-absorbing holes are provided on the guiding surface, the rubber strip extends into the sound-absorbing holes and is flush with the guiding surface.

[0008] In the foregoing vibration damping guide rail for an elevator, the sound-absorbing holes are arranged in two rows, and the two rows of sound-absorbing holes are staggered in the longitudinal direction of the guide rail.

[0009] In the foregoing vibration damping guide rail for an elevator, a plurality of mounting holes are provided on the connecting part, a gasket is provided on one side of the mounting hole, a damping pad is provided on the other side of the mounting hole, and a bolt passing through the gasket and the damping pad is provided in the mounting hole.

[0010] In the aforementioned vibration damping guide rail for elevator, the damping cushion block includes a first cushion plate and a second cushion plate. A rubber column is provided between the first cushion plate and the second cushion plate. A spiral spring is provided inside the rubber column. A sleeve is provided outside the rubber column. One end of the sleeve is fixed to the first cushion plate, and a compression positioning groove is formed between the other end of the sleeve and the second cushion plate.

[0011] In the aforementioned vibration damping guide rail for elevator, the spring is a rectangular spring.

[0012] In the aforementioned vibration damping guide rail for elevator, a positioning plug is provided at one end of the guiding part. The positioning plug is inserted into the guiding part. The cross-section of the positioning plug is U-shaped. The two arms of the positioning plug extend to the inside of the corresponding connecting part. A protruding strip is provided in the middle of the positioning plug, and the protruding strip does not exceed the guiding surface.

[0013] In the aforementioned vibration damping guide rail for elevator, a plurality of through grooves are provided on the outer peripheral surface of the positioning plug.

[0014] Compared with the prior art, in the present utility model, a rubber strip is provided inside the guide rail. The rubber strip is used to reduce the amplitude of the guide rail and absorb vibration energy, thereby reducing the vibration noise of the guide rail itself. By providing a damping cushion block on the guide rail to replace the rubber block connecting bracket, the spring and rubber column in the damping cushion block are used to absorb vibration energy, preventing the vibration of the guide rail from being transmitted to the hoistway wall through the bracket and reducing the resonance noise of the hoistway wall. Even if the rubber column ages, the spring can still ensure that the connection between the guide rail and the bracket is firm, and the guide rail will not become loose, reducing potential safety hazards. By reducing the vibration noise of the guide rail itself and the resonance noise of the hoistway wall, the present utility model can significantly reduce the noise impact on the adjacent rooms of the hoistway during the operation of the elevator. It is measured that the room noise can be reduced by about 3 dB. In summary, the present utility model has the advantages of reducing noise and potential safety hazards. Description of the Drawings

[0015] Figure 1 is a cross-sectional schematic diagram of the present utility model.

[0016] Figure 2 is a structural schematic diagram of the damping cushion block.

[0017] Figure 3 is a three-dimensional schematic diagram when the positioning plug is matched with the guide rail.

[0018] Figure 4 is a structural schematic diagram of the positioning plug.

[0019] The markings in the attached drawings are as follows: 1 - guiding part, 2 - guiding surface, 3 - connecting part, 4 - mounting part, 5 - rubber strip, 6 - reinforcing rib, 7 - sound-absorbing hole, 8 - mounting hole, 9 - gasket, 10 - damping cushion block, 11 - bolt, 12 - first backing plate, 13 - second backing plate, 14 - rubber column, 15 - spring, 16 - sleeve, 17 - compression positioning groove, 18 - positioning plug-in, 19 - through groove, 20 - clamping strip. Detailed implementation mode

[0020] The present utility model will be further described below in conjunction with the attached drawings and embodiments, but it shall not be used as the basis for restricting the present utility model.

[0021] Embodiment. A vibration damping guide rail for an elevator, as Figure 1 shown, includes a guiding part 1 with a U-shaped cross-section. Guiding surfaces 2 are formed on both sides of the guiding part 1. Both sides of the opening of the guiding part 1 first contract inward to form a connecting part 3, and then bend outward to form a mounting part 4. A rubber strip 5 made of rubber material is filled inside the opening of the guiding part 1, and the rubber strip 5 extends between the two connecting parts 3. The outer end of the mounting part 4 bends towards the connecting part 3 to form a reinforcing rib 6. The guiding part 1, the connecting part 3, the mounting part 4 and the reinforcing rib 6 are formed by sheet metal bending. The rubber strip 5 enables the guide rail to have a soft inner core inside, which can absorb the vibration energy of the guide rail, thereby reducing vibration noise, and the sound-absorbing principle is the same as that of damping asphalt.

[0022] A plurality of sound-absorbing holes 7 are provided on the guiding surface 2. The rubber strip 5 extends into the sound-absorbing holes 7 and is flush with the guiding surface 2. The sound-absorbing holes 7 are formed by punching. The sound-absorbing holes 7 destroy the sound wave transmission path and play a role in reducing noise. The rubber strip 5 can be formed by first sealing both ends of the guide rail and the outer ends of the sound-absorbing holes 7, and then pouring rubber raw materials for natural vulcanization.

[0023] The sound-absorbing holes 7 are arranged in two rows, and the two rows of sound-absorbing holes 7 are staggered in the longitudinal direction of the guide rail. The two rows of sound-absorbing holes 7 are staggered to avoid a significant reduction in the bending resistance of the guide rail caused by too many sound-absorbing holes 7 on the same cross-section.

[0024] A plurality of mounting holes 8 are provided on the connecting part 3. A gasket 9 is provided on one side of the mounting hole 8, a damping cushion block 10 is provided on the other side of the mounting hole 8, and a bolt 11 passing through the gasket 9 and the damping cushion block 10 is provided in the mounting hole 8.

[0025] The damping cushion block 10 includes a first backing plate 12 and a second backing plate 13. A rubber column 14 is provided between the first backing plate 12 and the second backing plate 13. A spiral spring 15 is provided inside the rubber column 14. Both ends of the spring 15 are flat and contact the first backing plate 12 and the second backing plate 13 respectively. The spring 15 is a rectangular spring and has the advantage of high rigidity. A sleeve 16 is provided outside the rubber column 14. One end of the sleeve 16 is fixed to the first backing plate 12. The sleeve 16 and the first backing plate 12 are integrally formed by sheet metal stamping. A compression positioning groove 17 is formed between the other end of the sleeve 16 and the second backing plate 13.

[0026] One end of the guiding part 1 is provided with a positioning plug 18. The positioning plug 18 is inserted into the guiding part 1. The cross-section of the positioning plug 18 is U-shaped. The two arms of the positioning plug 18 extend to the inside of the corresponding connecting part 3. A protruding strip 20 is provided in the middle of the positioning plug 18. The protruding strip 20 does not exceed the guiding surface 2.

[0027] A plurality of through grooves 19 are provided on the outer peripheral surface of the positioning plug 18. The positioning plug 18 is made of reinforced PA66. The advantages of PA66 are good anti-aging property, good toughness, high strength and certain self-lubricity.

[0028] Usage method: Multiple guide rails are spliced and used. Adjacent guide rails are connected by the positioning plug 18 to keep the guiding surfaces 2 on adjacent guide rails aligned.

[0029] The bolt 11 is connected to the hoistway wall of the elevator through a bracket to fix the guide rail. After the bolt 11 is tightened, the first backing plate 12 contacts the sleeve 16 and the compression positioning groove 17 disappears. Then loosen the bolt 11 by about one turn to avoid the first backing plate 12 contacting the sleeve 16. The advantage of doing this is that after installation, the heights of all the damping cushion blocks 10 are the same, with good consistency. At the same time, it avoids excessive compression of the rubber and delays the aging speed. Even if the rubber ages, the spring 15 still plays a supporting role to avoid loosening of the guide rail. The vibration of the guide rail to the hoistway wall passes through the rubber column 14 and the spring 15, and the vibration energy is absorbed to avoid resonance noise of the hoistway wall.

[0030] The U-shaped structure of the positioning plug 18 makes the positioning plug 18 elastic. The vibration direction of the guide rail is horizontal. When one guide rail vibrates under the friction of the guide shoe and the vibration force is transmitted to the adjacent guide rail, the positioning plug 18 can absorb a certain amount of vibration energy, reduce the resonance amplitude of the adjacent guide rail, and further reduce the noise.

Claims

1. A vibration-damping guide rail for an elevator, characterized in that: The invention comprises a guide portion (1) having a U-shaped cross section, wherein two sides of the guide portion (1) form guide surfaces (2), both sides of the opening of the guide portion (1) are first contracted inwards to form a connecting portion (3), and then bent outwards to form a mounting portion (4), and the inner side of the opening of the guide portion (1) is filled with a rubber strip (5), and the rubber strip (5) extends between the two connecting portions (3).

2. The vibration-damping guide rail for an elevator according to claim 1, characterized in that: The outer end of the mounting portion (4) is bent toward one side of the connecting portion (3) to form a reinforcing rib (6).

3. The vibration-damping guide rail for an elevator according to claim 1, characterized in that: The guide surface (2) is provided with a plurality of silencer holes (7), and the rubber strip (5) extends into the silencer holes (7) and remains flush with the guide surface (2).

4. The vibration-damping guide rail for an elevator according to claim 3, characterized in that: The muffler holes (7) are arranged in two rows, and the two rows of muffler holes (7) are staggered in the long direction of the guide rail.

5. The vibration-damping guide rail for an elevator according to claim 1, characterized in that: The connecting portion (3) is provided with a plurality of mounting holes (8), a gasket (9) is provided on one side of the mounting hole (8), a damping pad (10) is provided on the other side of the mounting hole (8), and a bolt (11) passing through the gasket (9) and the damping pad (10) is provided in the mounting hole (8).

6. The vibration-damping guide rail for an elevator according to claim 5, characterized in that: The damping pad (10) comprises a first pad (12) and a second pad (13), a rubber column (14) is provided between the first pad (12) and the second pad (13), a spiral spring (15) is provided in the rubber column (14), a sleeve (16) is provided on the outside of the rubber column (14), one end of the sleeve (16) is fixed to the first pad (12), and a compression positioning groove (17) is formed between the other end of the sleeve (16) and the second pad (13).

7. The vibration-damping guide rail for an elevator according to claim 6, characterized in that: The spring (15) is a rectangular spring.

8. The vibration-damping guide rail for an elevator according to claim 7, characterized in that: A positioning plug-in (18) is provided at one end of the guide portion (1), the positioning plug-in (18) is inserted into the guide portion (1), the cross section of the positioning plug-in (18) is U-shaped, the two arms of the positioning plug-in (18) extend to the inner side of the corresponding connecting portion (3), and the middle part of the positioning plug-in (18) is provided with a clamping strip (20) protruding outwards, and the clamping strip (20) does not exceed the guide surface (2).

9. The vibration-damping guide rail for an elevator according to claim 8, characterized in that: A plurality of through grooves (19) are provided on the outer peripheral surface of the positioning plug-in unit (18).

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