A vibration damping and noise reduction device and system for elevators

Abstract

This utility model discloses a vibration damping and noise reduction device and system for elevators, relating to the field of elevator technology. It includes a base plate, side plates, a first damping member disposed in the middle of the side plates, two symmetrically arranged bent plates above the base plate, and a second damping member disposed on the two bent plates. The side plates are connected to the top of the base plate, and the bent plates are connected to the side plates. The first damping member includes an adjusting member. Both the first and second damping members include a locking member, bolts, and a buffer layer covering the bolt heads. The adjusting member and the locking member of the first damping member are respectively disposed on both sides of the side plates. The adjusting member is used to adjust the distance between the buffer layer of the first damping member and the base plate according to different types of car frame columns. The buffer layer of the first damping member abuts against the external car frame columns; the buffer layer of the second damping member abuts against the external car frame columns. Using this utility model, the vibration and noise generated between the car and the car frame columns can be effectively reduced, thereby improving the passenger riding experience.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to a vibration reduction and noise reduction device and system for elevators. Background Technology

[0002] In existing elevator systems, the car, as the core component carrying passengers or goods, directly affects the overall performance and passenger experience of the elevator through its connection to the car frame. In conventional elevator designs, for cost control and structural simplification, the top of the car is typically fixed with direct bolts – a "hard connection." While this connection method offers advantages such as convenient installation, high structural strength, and intuitive maintenance, it lacks effective vibration isolation and buffering structures. Vibrations generated by the car frame during operation, especially those from uneven guide rails, traction machine start-stop impacts, or rail joints, are transmitted to the car interior with almost no attenuation. This often results in significant operating noise and high-frequency vibrations in the car walls and floor, particularly noticeable during acceleration, braking, deceleration, and passage through landing joints. Over time, this vibration and noise not only affect passenger comfort but can also cause tension and anxiety in some passengers, lowering their overall evaluation of the elevator's quality.

[0003] To improve this situation, some mid-to-high-end elevator products have begun to introduce a "soft connection" design. For example, Chinese patent application CN105329758A, entitled "A Flexible Car Bottom Car", mentions that the bracket and the car bottom connecting plate are connected by a shock-absorbing device and a guide device. However, the shock-absorbing device is a shock-absorbing pad or a spring, so the shock-absorbing pad or spring is prone to failure after long-term use.

[0004] Furthermore, because different elevators use different car frame models, the distance between the car frame columns and the car body also varies. Existing elevator car frames, such as those described in Chinese patent application CN208814452U (utility model title: "A Car Vibration Damping Device for High-Speed ​​Elevators"), mention that the top sides of the car are connected to the columns on both sides via connectors, and a car top vibration damping rubber is provided between the contact surfaces of the connectors and the columns. Therefore, this vibration damping rubber cannot be adjusted according to the distance between the car frame columns and the car body, easily leading to a significant weakening of the vibration damping effect after wear, requiring frequent replacement of the vibration damping rubber, and failing to maximize the utilization of each piece of vibration damping rubber.

[0005] Therefore, there is an urgent need to design a vibration and noise reduction device and system that has good vibration reduction and noise reduction effects, high durability, strong stability, and is applicable to multiple types of elevators to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a shock absorption and noise reduction device for elevators that has good shock absorption and noise reduction effects, high durability, strong stability, and is applicable to multiple types of elevators.

[0007] To solve the above-mentioned technical problems, this utility model provides a vibration damping and noise reduction device for elevators, including a base plate, a side plate, a first vibration damper disposed in the middle of the side plate, two bent plates symmetrically disposed above the base plate, and a second vibration damper disposed on the two bent plates; the side plate is connected to the top of the base plate, and the bent plates are connected to the side plate; the first vibration damper includes an adjusting member; both the first and second vibration dampers include a locking member, a bolt, and a buffer layer covering the head of the bolt; the adjusting member and the locking member of the first vibration damper are respectively disposed on both sides of the side plate, the adjusting member is used to adjust the distance between the buffer layer of the first vibration damper and the base plate according to different styles of elevator frame columns, the locking member of the first vibration damper is used to lock the bolt of the first vibration damper on the side plate, and the buffer layer of the first vibration damper abuts against the external elevator frame column; the locking member of the second vibration damper is used to lock the bolt of the second vibration damper on the bent plate, and the buffer layer of the second vibration damper abuts against the external elevator frame column.

[0008] As an improvement to the above solution, the bending plate includes a first straight surface, a second straight surface, and an arc-shaped portion for connecting the first straight surface and the second straight surface; the first straight surface is connected to the side plate, and the bolt of the second shock absorber passes through the second straight surface.

[0009] As an improvement to the above scheme, the first plane and the second plane are perpendicular to each other.

[0010] As an improvement to the above solution, the locking member and bolt of the first shock absorber are respectively located on both sides of the side plate, and the screw of the first shock absorber passes through the side plate from one side and locks with the corresponding locking member; the locking member and bolt of the second shock absorber are respectively located on both sides of the corresponding bent plate, and the screw of the second shock absorber passes through the bent plate from one side and locks with the corresponding locking member.

[0011] As an improvement to the above solution, a reinforcing plate assembly is also included, which comprises several reinforcing plates symmetrically arranged on both sides of the base plate, with the side edges of the reinforcing plates sequentially connected to the first straight surface, the arc-shaped portion, and the second straight surface.

[0012] As an improvement to the above solution, the bolt has a boss at its end.

[0013] As an improvement to the above solution, the buffer layer is made of polyurethane material.

[0014] Accordingly, this utility model also provides a vibration reduction and noise reduction system, including at least two vibration reduction and noise reduction devices for elevators, a car, and two car frame columns, wherein the first and second vibration damping components on the vibration reduction and noise reduction devices abut against the car frame columns.

[0015] As an improvement to the above solution, a top plate support is provided above the car, and the top plate support is connected to the bottom plate.

[0016] The beneficial effects of implementing this utility model are as follows: In this invention, by setting a base plate and side plates, and connecting a bent plate to the side plates, a first shock absorber is installed on the side plates and a second shock absorber is installed on the bent plates. The first and second shock absorbers abut against the car frame columns, allowing for a flexible connection between the car and the car frame columns. This reduces noise and vibration caused by collisions between the car and the car frame columns during elevator operation. By setting an adjustment component on the first shock absorber, the distance between the buffer layer on the first shock absorber and the car frame column can be adjusted according to different types of car frame columns, preventing the shock absorber from being unable to effectively dampen vibrations due to being too far from the car frame column. Furthermore, this invention also includes a vibration damping and noise reduction system, which uses a top plate bracket on the top of the car to stably mount the vibration damping and noise reduction device on the car top. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the shock absorption and noise reduction device for elevators according to this utility model from one perspective; Figure 2 This is another perspective structural schematic diagram of the shock absorption and noise reduction device for elevators according to this utility model; Figure 3 This is a schematic diagram of the structure of the first shock absorber in the shock absorption and noise reduction device for elevators of this utility model; Figure 4 This is a schematic diagram of the vibration reduction and noise reduction system of this utility model from one perspective. Figure 5 This is a schematic diagram of the vibration reduction and noise reduction system of this utility model from another perspective. Detailed Implementation

[0018] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0019] See Figure 1 , Figure 1The present invention illustrates the specific structure of a vibration damping and noise reduction device for elevators, including a base plate 1, a side plate 2, a first damping member 31 disposed in the middle of the side plate 2, two bent plates 4 symmetrically disposed above the base plate 1, and second damping members 32 disposed on the two bent plates 4; the side plate 2 is connected to the top of the base plate 1, and the bent plates 4 are connected to the side plate 2; the first damping member 31 includes an adjusting member 36; both the first damping member 31 and the second damping member 32 include a locking member 33, a bolt 34, and a buffer layer 35 covering the head of the bolt 34; the adjusting member 36 and the first damping member 31... Locking parts 33 are respectively provided on both sides of the side plate 2. Adjusting parts 36 are used to adjust the distance between the buffer layer 35 of the first shock absorber 31 and the base plate 1 according to different styles of car frame columns 5. The locking parts 33 of the first shock absorber 31 are used to lock the bolts 34 of the first shock absorber 31 onto the side plate 2. The buffer layer 35 of the first shock absorber 31 abuts against the external car frame columns 5. The locking parts 33 of the second shock absorber 32 are used to lock the bolts 33 of the second shock absorber 32 onto the bending plate 4. The buffer layer 35 of the second shock absorber 32 abuts against the external car frame columns 5.

[0020] It should be noted that by setting up a base plate 1 and a side plate 2, and connecting them to the side plate 2 with a bent plate 4, the first shock absorber 31 passes through the side plate 2 and the second shock absorber 32 passes through the bent plate 4, allowing a flexible connection between the top of the car 7 and the car frame column 5. This reduces the noise generated by the collision between the car 7 and the car frame column 5 during elevator operation. In actual use, the length of the bolt 34 of the first shock absorber 31 extending out of the side plate 2 can be controlled by twisting the adjusting component 36, so that the buffer layer 35 at its head can abut against the car frame column 5, maximizing the shock absorption and noise reduction effect of the first shock absorber 31. In addition, the adjusting component 36 can also be used to further fix the first shock absorber 31 to the base plate 1, preventing the locking component 33 from loosening between the base plate 1 when the impact force between the car 7 and the car frame column 5 is too large.

[0021] Specifically, the bending plate 4 includes a first straight surface 41, a second straight surface 42, and an arc-shaped portion 43 for connecting the first straight surface 41 and the second straight surface 42; the first straight surface 41 is connected to the side plate 2, and the bolt 34 of the second damping member 32 passes through the second straight surface 42. By setting the bending plate 4 as a straight surface, its contact area with the side plate 2 is maximized, and it is easy to manufacture. By setting the part connecting the first straight surface 41 and the second straight surface 42 as an arc shape, the arc design makes it easier to resist lateral movement when the bending plate 4 vibrates.

[0022] Furthermore, the first straight surface 41 and the second straight surface 42 are perpendicular to each other, so that the first shock absorber 31 and the second shock absorber 32 can both abut against the "U"-shaped car frame column 5 to improve the shock absorption effect.

[0023] Specifically, the locking element 33 and bolt 34 of the first damping component 31 are respectively located on both sides of the side plate 2. The screw of the first damping component 31 passes through the side plate 2 from one side and locks with the corresponding locking element 33. The locking element 33 and bolt 34 of the second damping component 32 are respectively located on both sides of the corresponding bent plate 4. The screw of the second damping component 32 passes through the bent plate 4 from one side and locks with the corresponding locking element 33. By setting the locking element 33 and the buffer layer 35 on both sides of the bent plate 4, a stable connection can be achieved between the damping component and the bent plate 4, making it less prone to loosening. Moreover, the locking element 33 is usually a nut, which is relatively easy to adjust, making it convenient for maintenance workers to operate during installation and maintenance.

[0024] See Figure 2 It also includes a reinforcing plate assembly 6, which includes several reinforcing plates 61 symmetrically arranged on both sides of the base plate 1. The sides of the reinforcing plates 61 are connected to the first straight surface 41, the arc-shaped part 43 and the second straight surface 42 in sequence, so that their shape is not easily changed by vibration.

[0025] See Figure 3 The bolt 34 has a boss 341 at its end. This allows maintenance personnel to use pliers to clamp the end of the bolt 34 to secure the shock absorber, and then tighten the locking part 33 with a wrench.

[0026] Preferably, the buffer layer 35 is made of polyurethane. Polyurethane has good elasticity, which can effectively reduce the noise when the car frame column 5 collides with the car 7.

[0027] It should be noted that other materials with good cushioning properties can also be used as the buffer layer 35 of this shock absorption and noise reduction device, but are not limited to this.

[0028] See Figure 4 and Figure 5 This utility model also provides a vibration reduction and noise reduction system, including two vibration reduction and noise reduction devices for elevators, a car 7, and two car frame columns 5. The first vibration damping component 31 and the second vibration damping component 32 on the vibration reduction and noise reduction device are both in contact with the car frame columns 5.

[0029] By installing this vibration damping and noise reduction device on both sides of the top of the car 7, there is a buffering effect between the car 7 and the car frame columns 5 on both sides, so as to reduce the noise generated during the operation of the elevator and the vibration generated on the car 7.

[0030] Preferably, a top plate support 8 is provided above the car 7, and the top plate support 8 is connected to the bottom plate 1. This allows the vibration damping and noise reduction device to be stably connected to the top of the car 7.

[0031] As can be seen from the above, the vibration damping and noise reduction device for elevators of this utility model, through the use of the first damping component 31 and the second damping component 32, enables a flexible connection between the elevator car 7 and the car frame column 5, reducing the noise generated by the car 7 and the car frame column 5 during elevator operation, thereby improving the passenger riding experience. By setting an adjusting component 36 on the second damping component 32, the distance between the buffer layer 35 and the base plate 1 can be adjusted according to different models of car frame columns 5, and the second damping component 32 and the base plate 1 can be further fixed to prevent the locking component 33 from loosening between the base plate 1 when the impact force between the car 7 and the car frame column 5 is too large. By setting a boss 341 at the end of the bolt 34, maintenance personnel can use pliers to clamp the end of the bolt 34 to fix the damping component, and then use a wrench to tighten the locking component 33 to fix the damping component to the bending plate 4.

[0032] In addition, this utility model also includes a vibration damping and noise reduction system. By connecting each vibration damping component to the car frame column 5, the connection stability between the car frame column 5 and the elevator car top is ensured. By connecting the base plate 1 to the top plate support 8 of the car 7, the car 7 can be connected to the car frame column 5, thereby achieving a flexible connection between the car 7 and the car frame column 5 through the use of this vibration damping and noise reduction device.

[0033] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this invention, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A vibration damping and noise reduction device for elevators, characterized in that, It includes a base plate, side plates, a first shock absorber disposed in the middle of the side plates, two bent plates symmetrically disposed above the base plate, and a second shock absorber disposed on the two bent plates; The side plate is connected to the top of the bottom plate, and the bent plate is connected to the side plate; The first shock absorber includes an adjusting component; Both the first and second shock absorbers include a locking element, a bolt, and a buffer layer covering the head of the bolt; The adjusting component and the locking component of the first shock absorber are respectively provided on both sides of the side plate. The adjusting component is used to adjust the distance between the buffer layer of the first shock absorber and the bottom plate according to different styles of car frame columns. The locking component of the first shock absorber is used to lock the bolt of the first shock absorber on the side plate. The buffer layer of the first shock absorber abuts against the external car frame column. The locking member of the second shock absorber is used to lock the bolts of the second shock absorber to the bending plate, and the buffer layer of the second shock absorber abuts against the external car frame column.

2. The vibration damping and noise reduction device for elevators as described in claim 1, characterized in that, The bending plate includes a first straight surface, a second straight surface, and an arc-shaped portion for connecting the first straight surface and the second straight surface; The first straight surface is connected to the side plate, and the bolts of the second shock absorber pass through the second straight surface.

3. The vibration damping and noise reduction device for elevators as described in claim 2, characterized in that, The first plane and the second plane are perpendicular to each other.

4. The vibration damping and noise reduction device for elevators as described in claim 1, characterized in that, The locking element and bolt of the first shock absorber are respectively located on both sides of the side plate. The screw of the first shock absorber passes through the side plate from one side and locks with the corresponding locking element. The locking element and bolt of the second shock absorber are respectively located on both sides of the corresponding bent plate. The screw of the second shock absorber passes through the bent plate from one side and locks with the corresponding locking element.

5. The vibration damping and noise reduction device for elevators as described in claim 2, characterized in that, It also includes a reinforcing plate assembly, which comprises several reinforcing plates symmetrically arranged on both sides of the base plate, with the side edges of the reinforcing plates sequentially connected to the first straight surface, the arc-shaped portion, and the second straight surface.

6. The vibration damping and noise reduction device for elevators as described in claim 1, characterized in that, The bolt has a boss at its end.

7. The vibration damping and noise reduction device for elevators as described in claim 1, characterized in that, The buffer layer is made of polyurethane.

8. A vibration damping and noise reduction system, characterized in that, It includes at least two shock-absorbing and noise-reducing devices for elevators as described in any one of claims 1 to 7, a car, and two car frame columns, wherein the first shock absorber and the second shock absorber on the shock-absorbing and noise-reducing device abut against the car frame columns.

9. The vibration reduction and noise reduction system as described in claim 8, characterized in that, The car is provided with a top plate support, which is connected to the bottom plate.

Images