Elevator safety gear with guide rail cleaning function
By introducing a spray assembly and cleaning shovel into the elevator safety brake, combined with a liquid level sensor and a light sensor, the problem of reduced braking performance of the elevator safety brake caused by foreign objects such as dust and oil has been solved, achieving stable braking and safety assurance of the elevator in complex environments.
Patent Information
- Application Number
- CN202521063452.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-27
AI Technical Summary
In complex environments, the braking performance of elevator safety brakes can be reduced due to foreign objects such as dust and oil, affecting the safety and reliability of the elevator.
An elevator safety clamp with guide rail cleaning function was designed, including a spray assembly and a cleaning shovel. The guide rail and brake wedge are cleaned by spraying cleaning fluid and using the cleaning shovel. Automatic monitoring and control are achieved by combining a liquid level sensor and a light sensor.
It effectively improves the adaptability and braking performance of elevator safety clamps in complex environments, ensuring that elevators can be effectively stopped under any circumstances, protecting equipment and personnel safety, and avoiding spray system failure due to insufficient cleaning fluid.
Smart Images
Figure CN224677568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator safety clamp technology, and in particular to an elevator safety clamp with guide rail cleaning function. Background Technology
[0002] Elevator safety brakes, as key equipment ensuring the safe operation of elevators, achieve their braking function through the friction between brake wedges and guide rails. However, in practical applications, the elevator shaft environment is complex and harsh. Dust, sand, and other contaminants easily adhere to the surfaces of the wedges and guide rails, altering the friction parameters between them and leading to a decrease in braking force or even failure of the safety brake. In particular, the sliding guide shoes and lubrication systems used in low-speed elevators are prone to dust and sand mixing with the lubricating oil, forming a greasy mixture that further affects braking performance. While the roller guide shoes used in high-speed elevators do not require lubrication, the guide rails are prone to corrosion after prolonged stops, and the aging rubber layer on the rollers can also hinder effective braking. Utility Model Content
[0003] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide an elevator safety clamp with a guide rail cleaning function, which has the advantage of being able to clean the guide rail, thereby avoiding the decrease in the braking effect of the elevator safety clamp due to foreign objects remaining on the guide rail.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: An elevator safety clamp with guide rail cleaning function, comprising: The clamp base has a mounting cavity; A braking assembly, wherein the braking assembly is disposed within the mounting cavity and connected to the caliper seat; A spray assembly is disposed in the mounting cavity and connected to the clamp seat; A cleaning shovel, which is positioned below and connected to the braking assembly.
[0005] Compared with existing technologies, this application, through the installation of a spray assembly and a cleaning shovel, can clean the guide rails and braking components, effectively improving the adaptability and braking performance of the safety clamp in complex environments, ensuring that the elevator can be effectively stopped when the guide rails are heavily soiled, and protecting the safety of equipment and personnel.
[0006] As a preferred embodiment of this utility model, the braking assembly includes: Two guide blocks are disposed opposite each other in the mounting cavity and movably connected to the clamp seat, and a guide rail is located between the two guide blocks; Braking wedges, each of the guide blocks is provided with at least one braking wedge.
[0007] As a preferred embodiment of this utility model, the cleaning shovel is disposed on the bottom wall of the brake wedge, with the bottom of the cleaning shovel facing the guide rail.
[0008] By adopting the above-mentioned scheme, a cleaning shovel is installed on the bottom wall of the brake wedge. When the safety caliper performs the braking action, the cleaning shovel moves closer to the guide rail along with the brake wedge and contacts the guide rail surface before the brake wedge. This effectively removes foreign matter such as oil, grease, and adhesive from the guide rail surface, creating a clean braking track for the brake wedge and improving braking performance.
[0009] As a preferred embodiment of this utility model, the spray assembly includes: A liquid storage tank, wherein the liquid storage tank is disposed within the mounting cavity and connected to the clamp seat; A spray pump, wherein the spray pump is mounted on the liquid storage tank and is connected to the liquid storage tank; A nozzle bracket is disposed within the mounting cavity and connected to the clamp seat. A nozzle is disposed on the nozzle bracket and connected to the spray pump via a spray pipe. The position of the nozzle corresponds to the position of the guide rail.
[0010] By adopting the above solution, the high-pressure cleaning fluid can be sprayed onto the guide rail and brake wedges through the installation of the reservoir, spray pump and nozzles, to remove oil stains, grease and other foreign objects from the surface of the brake wedges and guide rails, and to eliminate the influence of foreign objects on the braking performance of the safety caliper.
[0011] As a preferred embodiment of this utility model, a liquid level sensor is provided inside the liquid storage tank.
[0012] By adopting the above solution and setting up a liquid level sensor, the liquid level of the cleaning fluid in the storage tank can be effectively monitored. When the liquid level of the cleaning fluid is lower than the preset height, the staff can be notified in time and replenish the cleaning fluid, thus avoiding the problem of spray component failure due to insufficient cleaning fluid.
[0013] As a preferred embodiment of the present invention, it further includes a sensor assembly, which is disposed within the mounting cavity and connected to the clamp seat.
[0014] By adopting the above solution and setting up the sensor components, the surface condition of the guide rail and brake wedge can be monitored in real time, providing a basis for starting the spray system, realizing intelligent cleaning, and improving cleaning efficiency and effect.
[0015] As a preferred embodiment of this utility model, the sensor assembly includes a sensor bracket and a light sensor. The sensor bracket is disposed in the mounting cavity and connected to the clamp seat. The light sensor is disposed on the sensor bracket and is used to detect the surface of the guide rail and the surface of the brake wedge.
[0016] By adopting the above solution and setting up optical sensors, the oil and grease on the surface of the guide rail and brake wedge can be effectively detected, providing data support for the precise control of the spray assembly and ensuring the targeted and effective cleaning.
[0017] As a preferred embodiment of the present invention, the clamp base includes a base plate and a top plate, and at least two side plates are provided between the base plate and the top plate. The side plates are respectively connected to the top plate and the base plate, and an installation cavity is formed between the top plate and the base plate.
[0018] The elevator safety clamp with guide rail cleaning function described above has the following beneficial effects: The cleaning shovel and spray assembly effectively clean the surfaces of the guide rails and brake wedges, solving the problem of reduced braking performance caused by foreign matter such as dust, oil, grease, and adhesive. This improves the adaptability and reliability of the safety clamp in complex environments, ensuring the elevator can be effectively stopped under any circumstances, thus protecting the safety of equipment and personnel. Simultaneously, the liquid level sensor in the storage tank prevents the spray system from failing due to insufficient cleaning fluid, ensuring the continuous effectiveness of the cleaning function. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of an elevator safety clamp with guide rail cleaning function according to this utility model; Figure 2 This is a front view of an elevator safety clamp with guide rail cleaning function according to the present invention; Figure 3 for Figure 2 Sectional view at point AA; In the diagram: 1. Clamp seat; 11. Base plate; 12. Top plate; 13. Side plate; 2. Braking assembly; 21. Guide block; 22. Braking wedge; 3. Spray assembly; 31. Liquid reservoir; 32. Spray pump; 33. Nozzle bracket; 34. Nozzle; 4. Cleaning shovel; 5. Sensor assembly; 51. Sensor bracket; 52. Optical sensor; 6. Mounting cavity.
[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0024] This utility model proposes an elevator safety clamp with guide rail cleaning function.
[0025] Reference Figure 1 In one embodiment of this utility model, an elevator safety clamp with guide rail cleaning function is characterized by comprising: a clamp seat 1, a braking assembly 2, a spray assembly 3, and a cleaning shovel 4. The clamp seat 1 includes a base plate 11 and a top plate 12, with two side plates 13 disposed between the base plate 11 and the top plate 12. The side plates 13 are fixedly connected to the top plate 12 and the base plate 11, respectively, forming an installation cavity 6 between the top plate 12 and the base plate 11. The braking assembly 2 is disposed within the installation cavity 6 and connected to the clamp seat 1. The spray assembly 3 is disposed within the installation cavity 6 and connected to the clamp seat 1. The cleaning shovel 4 is disposed below the braking assembly 2 and connected to the braking assembly 2. Through the spray assembly 3 and the cleaning shovel 4, the guide rail and the braking assembly 2 can be cleaned, effectively improving the adaptability and braking performance of the safety clamp in complex environments, ensuring that the elevator can be effectively stopped when the guide rail is heavily soiled, thus protecting the safety of equipment and personnel.
[0026] Reference Figure 1 and Figure 2 In one embodiment, the braking assembly 2 includes two guide blocks 21 and a brake wedge 22. The two guide blocks 21 are disposed opposite to each other in the mounting cavity 6 and movably connected to the caliper seat 1. A guide rail is located between the two guide blocks 21. Specifically, the top plate 12 and the bottom plate 11 are provided with sliding grooves on their opposite sides. The guide blocks 21 are slidably disposed on the top plate 12 and the bottom plate 11 through the sliding grooves. The top plate 12 and the bottom plate 11 are provided with openings for the guide rail to pass through at the corresponding locations of the guide rail. At least one brake wedge 22 is fixedly connected to each guide block 21. The brake wedge 22 can be fixedly installed on the guide block by bolts. In this embodiment, one brake wedge 22 is fixedly disposed on each guide block 21, and multiple brake grooves are provided on the side of the brake wedge 22 near the guide rail. It is worth noting that the guide block 21 can slide along the sliding groove under the action of the external drive device, so that the brake wedge block 22 contacts the guide rail to achieve the braking effect. Since this application does not involve the improvement of the drive device, and the drive device is not within the protection scope of this application, the specific structure of the drive device will not be described in detail.
[0027] Reference Figures 1 to 3 In one embodiment, the cleaning shovel 4 is detachably mounted on the bottom wall of the brake wedge 22 by screws. The bottom of the cleaning shovel 4 faces the guide rail. To ensure that the cleaning shovel 4 contacts the guide rail surface before the brake wedge 22 when it moves towards the guide rail, the distance between the bottoms of the cleaning shovels 4 on different sides should be less than the distance between the brake wedges 22 on different sides. By installing the cleaning shovel 4 on the bottom wall of the brake wedge 22, when the safety caliper performs the braking action, the cleaning shovel 4 moves towards the guide rail along with the brake wedge 22 and contacts the guide rail surface before the brake wedge 22. This effectively removes oil, grease, adhesive, and other foreign matter from the guide rail surface, creating a clean braking track for the brake wedge 22 and improving braking performance.
[0028] Reference Figure 3In one embodiment, the spray assembly 3 includes: a liquid storage tank 31, a spray pump 32, a nozzle bracket 33, and nozzles 34. The liquid storage tank 31 is disposed in the mounting cavity 6 and fixedly connected to the base plate 11 with screws. The spray pump 32 is disposed on the liquid storage tank 31 and fixedly connected to the liquid storage tank 31 with screws, and the inlet of the spray pump 32 is connected to the liquid storage tank 31 through a pipe. The nozzle bracket 33 is disposed in the mounting cavity 6 and connected to the top plate 12 with bolts. The nozzles 34 are fixedly installed on the nozzle bracket 33 with screws, and the nozzles 34 are connected to the outlet of the spray pump 32 through a spray pipe. The position of the nozzles 34 corresponds to the position of the guide rail. The number of nozzles 34 can be set according to actual needs. In this embodiment, since it is necessary to spray and clean the guide rail and the brake wedge 22 separately, the number of nozzles is set to two, with the spraying directions being the direction of the guide rail and the direction of the brake wedge 22, respectively. Both nozzles 34 are connected to the outlet of the spray pump 32 through spray pipes. By using the reservoir 31, spray pump 32, and nozzle 34, high-pressure cleaning fluid can be sprayed onto the guide rail and brake wedge 22 to remove oil stains, grease, and other foreign matter from the surface of the brake wedge 22 and guide rail, thus eliminating the impact of foreign matter on the braking performance of the safety clamp.
[0029] In one embodiment, a liquid level sensor is installed inside the storage tank 31 by screws. The liquid level sensor effectively monitors the liquid level of the cleaning fluid in the storage tank 31. When the liquid level falls below a preset height, staff can promptly notify the operator and replenish the cleaning fluid, preventing the spray assembly 3 from malfunctioning due to insufficient cleaning fluid.
[0030] Reference Figure 3 In one embodiment, a sensor assembly 5 is also included. The sensor assembly 5 includes a sensor bracket 51 and a light sensor 52. The sensor bracket 51 is disposed within the mounting cavity 6 and connected to the base plate 11 by bolts. The light sensor 52 is mounted on the sensor bracket 51 by screws. The light sensor 52 is used to detect the surface of the guide rail and the surface of the brake wedge 22. In this embodiment, the light sensor 52 can be an infrared light sensor. In other embodiments, a laser sensor 52 or other existing light sensors capable of detecting oil, grease, and foreign matter on the surface of the guide rail and brake wedge 22 can also be used. The specific type of light sensor 52 is not limited here. By setting up the sensor assembly 5, the surface condition of the guide rail and brake wedge 22 can be monitored in real time, providing a basis for starting the spray system, achieving intelligent cleaning, and improving cleaning efficiency and effectiveness. The light sensor 52 can effectively detect the oil and grease on the surface of the guide rail and brake wedge 22, providing data support for the precise control of the spray assembly 3, ensuring the targeted and effective cleaning.
[0031] The cleaning shovel 4 and spray assembly 3 effectively clean the surfaces of the guide rails and brake wedges 22, thus solving the problem of reduced braking performance caused by foreign matter such as dust, oil, grease, and adhesive. This improves the adaptability and reliability of the safety clamp in complex environments, ensuring that the elevator can be effectively stopped under any circumstances, thereby protecting the safety of equipment and personnel. At the same time, the liquid level sensor in the liquid storage tank 31 prevents the spray system from failing due to insufficient cleaning fluid, ensuring the continuous effectiveness of the cleaning function.
[0032] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. An elevator safety clamp with guide rail cleaning function, characterized in that, include: The clamp base has a mounting cavity; A braking assembly, wherein the braking assembly is disposed within the mounting cavity and connected to the caliper seat; A spray assembly is disposed in the mounting cavity and connected to the clamp seat; A cleaning shovel, which is positioned below and connected to the braking assembly.
2. The elevator safety clamp with guide rail cleaning function according to claim 1, characterized in that, The braking assembly includes: Two guide blocks are disposed opposite each other in the mounting cavity and movably connected to the clamp seat, and a guide rail is located between the two guide blocks; Braking wedges, each of the guide blocks is provided with at least one braking wedge.
3. The elevator safety clamp with guide rail cleaning function according to claim 2, characterized in that: The cleaning shovel is disposed on the bottom wall of the brake wedge, with the bottom of the cleaning shovel facing the guide rail.
4. The elevator safety clamp with guide rail cleaning function according to claim 1, characterized in that, The spray assembly includes: A liquid storage tank, wherein the liquid storage tank is disposed within the mounting cavity and connected to the clamp seat; A spray pump, wherein the spray pump is mounted on the liquid storage tank and is connected to the liquid storage tank; A nozzle bracket is disposed within the mounting cavity and connected to the clamp seat. A nozzle is disposed on the nozzle bracket and connected to the spray pump via a spray pipe. The position of the nozzle corresponds to the position of the guide rail.
5. The elevator safety clamp with guide rail cleaning function according to claim 4, characterized in that: A liquid level sensor is installed inside the liquid storage tank.
6. The elevator safety clamp with guide rail cleaning function according to claim 2, characterized in that: It also includes a sensor assembly disposed within the mounting cavity and connected to the clamp.
7. The elevator safety clamp with guide rail cleaning function according to claim 6, characterized in that: The sensor assembly includes a sensor bracket and a light sensor. The sensor bracket is disposed in the mounting cavity and connected to the clamp seat. The light sensor is disposed on the sensor bracket and is used to detect the surface of the guide rail and the surface of the brake wedge.
8. The elevator safety clamp with guide rail cleaning function according to claim 1, characterized in that: The clamp base includes a base plate and a top plate. At least two side plates are provided between the base plate and the top plate. The side plates are respectively connected to the top plate and the base plate, and an installation cavity is formed between the top plate and the base plate.