Intelligent protection device for elevator

Abstract

The present invention relates to the field of elevators, and in particular to an intelligent protection device for elevators, including a safety clamp and a friction block; a plurality of friction blocks are fixedly connected to the safety clamp; an electric push rod and a first connecting plate, etc.; a plurality of electric push rods are fixedly connected to the safety clamp; and the telescopic end of each electric push rod is fixedly connected to the first connecting plate. The present invention cooperates with a connecting pipe, a square cleaning pipe and a cleaning port to suck out dust and impurities remaining in the safety clamp during the previous operation, so as to avoid contaminants adhering to the friction block of the safety clamp, which will cause the friction block to become smooth, that is, after the safety clamp is operated, the friction block cannot effectively clamp the guide rail, thereby affecting the braking effect.

Description

Technical Field

[0001] The present invention relates to the field of elevators, and in particular to an intelligent protection device for elevators. Background Art

[0002] The safety clamp system is one of the important safety protection devices of the elevator. It is mainly used for protection when the elevator is overspeeding when descending and protection when the suspension device is broken. During the operation of the elevator, when the elevator falls, the safety clamp will be triggered immediately to drive the friction blocks to move towards each other and clamp the guide rails. In this way, emergency treatment is carried out to protect the safety of the passengers in the elevator. During the construction process at the construction site, in order to facilitate the transportation of building materials, simple elevators are often built. The guide rails and safety clamps on them are often exposed to the external environment. When the construction site is in operation, the ambient air of the construction site contains pollutants such as dust and debris particles. When the pollutants adhere to the friction blocks of the safety clamps, the friction blocks will become smooth, that is, the friction blocks cannot effectively clamp the guide rails after the safety clamps are operated, thereby affecting the braking effect. Summary of the invention

[0003] In order to overcome the disadvantage that when a construction site is working, the ambient air at the construction site contains pollutants such as dust and debris particles, and when the pollutants adhere to the friction block of the safety clamp, the friction block will become smooth, thereby affecting the braking effect of the safety clamp, the present invention provides an intelligent protection device for an elevator.

[0004] The technical solution is: an intelligent protection device for an elevator, including a safety clamp and a friction block; a plurality of friction blocks are fixedly connected to the safety clamp; it also includes an electric push rod, a first connecting plate, a connecting pipe, a square pipe for cleaning dirt, a suction pump, a waste barrel and a filter; a plurality of electric push rods are fixedly connected to the safety clamp; a first connecting plate is fixedly connected to the telescopic end of each electric push rod; a connecting pipe is fixedly connected to each first connecting plate; each connecting pipe is connected to a square pipe for cleaning dirt; a plurality of waste barrels are fixedly connected to the safety clamp; each waste barrel is connected to a plurality of suction pumps; each suction pump is connected to the corresponding connecting pipe; each waste barrel is connected to a filter.

[0005] As a further preferred solution, each square cleaning tube is provided with a plurality of cleaning ports on one side facing the corresponding friction block.

[0006] As a further preferred solution, the pipe opening of the lower sewage cleaning square pipe is arranged as an inclined structure.

[0007] As a further preferred solution, each cleaning port is rotatably connected to a cleaning roller, the cleaning roller is directly opposite to the through groove opened on the friction block, and the paddle on the cleaning roller is made of rubber material, and the paddle of the cleaning roller exceeds the cleaning port.

[0008] As a further preferred scheme, it also includes a cleaning component, which includes a first spring telescopic rod, a second connecting plate, a third connecting plate, a second spring telescopic rod, a scraper and a limit plate; each first connecting plate is fixedly connected to a plurality of first spring telescopic rods; each cleaning square tube is provided with a plurality of second connecting plates; each second connecting plate is fixedly connected to a plurality of corresponding first spring telescopic rods; a plurality of third connecting plates are fixedly connected to the safety clamp; a plurality of second spring telescopic rods are fixedly connected to each third connecting plate; a scraper is fixedly connected to the telescopic ends of a plurality of second spring telescopic rods on the same side; and a plurality of limit plates are fixedly connected to the safety clamp.

[0009] As a further preferred solution, the scraper is arranged in an inclined shape.

[0010] As a further preferred solution, each square sewage cleaning tube is provided with a telescopic portion.

[0011] As a further preferred solution, a blocking component is also included, which includes a fourth connecting plate and a blocking block; each square sewage cleaning pipe is fixedly connected to the fourth connecting plate, and all fourth connecting plates on the same side are commonly fixedly connected to the blocking block.

[0012] As a further preferred solution, a rubber strip is provided at the connection between the fourth connecting plate and the square cleaning pipe.

[0013] As a further preferred solution, the blocking block is made of elastic rubber material.

[0014] The beneficial effects are as follows: 1. The present invention uses the connection pipe, the square cleaning pipe and the cleaning port to suck out the dust and impurities remaining in the safety clamp during the previous operation, so as to prevent the contaminants from adhering to the friction block of the safety clamp, which will cause the friction block to become smooth, that is, after the safety clamp is operated, the friction block cannot effectively clamp the guide rail, thereby affecting the braking effect;

[0015] When the cleaning square tube cleans the friction block, the cleaning roller will be squeezed by the friction block, and then the cleaning port of the lower cleaning square tube will be aligned with the through groove on the friction block, and the cleaning roller will be driven to align with the through groove on the friction block, and the airflow generated by suction will drive the cleaning roller to rotate, so that the cleaning roller will scrape the dust in the through groove of the friction block, so as to facilitate the cleaning square tube to clean the residual dust in the groove of the friction block;

[0016] 2. The present invention uses the lubricating oil on the scraper rail to make the trigger mechanism in the safety clamp contact and drive the friction block to clamp the rail, thereby reducing the influence of the lubricating oil on the rail on the friction block, so that the elevator can brake faster;

[0017] 3. The present invention drives the blocking block to approach and fit the safety clamp through the fourth connecting plate, and the blocking block fits the guide rail at the same time, that is, the blocking block cooperates with the cleaning square tube to completely block the gap between the guide rail and the safety clamp, thereby further improving the sealing effect and preventing pollutants in the outside air from entering the safety clamp when the elevator stops and the cleaning square tube cleans the safety clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the intelligent protection device for elevator of the present invention;

[0019] Figure 2 It is a schematic diagram of the combined structure of the safety pliers, friction blocks, electric push rods, first connecting plates, connecting pipes and square cleaning pipes of the intelligent protection device for elevators of the present invention;

[0020] Figure 3 This is a schematic diagram of the combined structure of a suction pump, a waste barrel and a filter of the intelligent protection device for elevators of the present invention;

[0021] Figure 4 For the present invention Figure 3 A magnified image of the area A in FIG.

[0022] Figure 5 This is a structural schematic diagram of a cleaning component of an intelligent protective device for an elevator according to the present invention;

[0023] Figure 6 This is a structural schematic diagram of a limit plate of an intelligent protection device for an elevator according to the present invention;

[0024] Figure 7 This is a state diagram of the square pipe for cleaning dirt when the elevator is in a moving state of the intelligent protection device for the elevator of the present invention;

[0025] Figure 8 It is a structural schematic diagram of a blocking component of an intelligent protective device for an elevator according to the present invention.

[0026] Among them: 001-guide rail, 1-safety clamp, 2-friction block, 3-electric push rod, 4-first connecting plate, 5-connecting pipe, 6-square pipe for cleaning, 6001-cleaning port, 6002-telescopic part, 6003-cleaning roller, 7-suction pump, 8-waste barrel, 9-filter, 101-first spring telescopic rod, 102-second connecting plate, 103-third connecting plate, 104-second spring telescopic rod, 105-scraper, 106-limiting plate, 201-fourth connecting plate, 202-blocking block. DETAILED DESCRIPTION

[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] An intelligent protection device for elevators, such as Figure 1-Figure 4 As shown, it includes a safety clamp 1 and a friction block 2; the safety clamp 1 is fixedly connected to two symmetrically arranged friction blocks 2;

[0030] It also includes an electric push rod 3, a first connecting plate 4, a connecting pipe 5, a square pipe for cleaning dirt 6, a suction pump 7, a waste barrel 8 and a filter 9; four electric push rods 3 distributed in a rectangular shape are fixedly connected to the safety clamp 1; the telescopic end of each electric push rod 3 is fixedly connected to the first connecting plate 4; each first connecting plate 4 is fixedly connected to the connecting pipe 5; each connecting pipe 5 is connected to the square pipe for cleaning dirt 6; two symmetrically arranged waste barrels 8 are fixedly connected to the safety clamp 1; each waste barrel 8 is connected to two symmetrically arranged suction pumps 7; each suction pump 7 is connected to the corresponding connecting pipe 5; each waste barrel 8 is connected to a filter 9.

[0031] Each cleaning square tube 6 is provided with eight cleaning ports 6001 equidistantly distributed on one side facing the corresponding friction block 2 , for cleaning the contaminants on the safety clamp 1 and the friction block 2 .

[0032] The pipe opening of the lower cleaning square pipe 6 is arranged as an inclined structure, so as to scrape off the pollutants attached to the surface of the friction block 2 .

[0033] Each cleaning port 6001 is rotatably connected to a cleaning roller 6003, which is directly opposite to the through groove on the friction block 2, and the paddle on the cleaning roller 6003 is made of rubber material. At the same time, the paddle of the cleaning roller 6003 extends beyond the cleaning port 6001, and is used to clean the residual dust in the groove of the friction block 2.

[0034] During the operation of the elevator, when the elevator falls, the safety clamp 1 will be triggered immediately to drive the friction block 2 to move toward each other and clamp the guide rail 001. In this way, emergency treatment is carried out to protect the safety of the passengers in the elevator. During the construction process of the construction site, in order to facilitate the transportation of building materials, a simple elevator is often built, and the guide rail 001 and the safety clamp 1 thereon are often exposed to the external environment. When the construction site is in operation, the ambient air of the construction site contains pollutants such as dust and debris particles. When the pollutants adhere to the friction block 2 of the safety clamp 1, it will cause the friction block 2 to become smooth, that is, after the safety clamp 1 is operated, the friction block 2 will become smooth. The wiper block 2 cannot effectively clamp the guide rail 001, thereby affecting the braking effect, and when contaminants enter the safety clamp 1, it will affect the trigger mechanism therein, resulting in a decrease in the sensitivity of the safety clamp 1, thereby affecting its normal operation. That is, during the use of the elevator, when the elevator stops running (stops at a certain floor or stops working), under the control of the built-in intelligent control system of the elevator, the four electric push rods 3 are first controlled to drive the corresponding first connecting plates 4 to move up or down, and the first connecting plate 4 drives the corresponding connecting pipes 5 and the cleaning square pipes 6 to move, so that the four cleaning square pipes 6 enter the safety clamp 1, and the two cleaning square pipes 6 on the same side are connected to each other, such as Figure 2As shown, the two lower cleaning square pipes 6 are in contact with the corresponding friction blocks 2, and the suction pump 7 is controlled to operate during this process. The dust and impurities remaining in the safety clamp 1 during the previous operation are sucked out through the connection pipe 5, the cleaning square pipe 6 and the cleaning port 6001. In this process, the cleaning roller 6003 is squeezed by the friction block 2, and then the cleaning port 6001 of the lower cleaning square pipe 6 is aligned with the through groove opened on the friction block 2, and at the same time, the cleaning roller 6003 is driven to align with the through groove opened on the friction block 2, and the cleaning roller 6003 is driven to rotate by the airflow generated by suction, so that the cleaning roller 6003 scrapes the dust in the through groove of the friction block 2, so as to facilitate the cleaning square pipe 6 to clean the residual dust in the groove of the friction block 2. It should be noted that the friction block 2 on the safety clamp 1 will have a plurality of through grooves, the main function of which is to increase the friction force so that the safety clamp 1 can brake faster. In the above manner, when the elevator stops running (stops at a certain floor or stops working), the safety clamp 1 and the friction clamp 1 can be cleaned by driving the cleaning square pipe 6 to enter the safety clamp 1. The contaminants on the friction block 2 are removed. At the same time, during the movement of the cleaning square pipe 6 below, the inclined structure arranged at the pipe openings of the two cleaning square pipes 6 below can scrape off the dust adhered to the surface of the friction block 2, and the cleaning square pipe 6 is used to block the gap between the safety clamp 1 and the guide rail 001, so as to reduce the contaminants in the outside air from entering the safety clamp 1 during the cleaning process. Before the elevator runs, under the control of the intelligent control system inside the elevator, the electric push rod 3 is controlled to push the first connecting plate 4 to reset, that is, the first connecting plate 4 drives the connecting pipe 5 and the cleaning square pipe 6 to reset, so that the cleaning square pipe 6 moves to the outside of the safety clamp 1. During the operation of the elevator, the suction pump 7 is controlled to run, and the suction work is maintained with the cooperation of the connecting pipe 5, the cleaning square pipe 6 and the cleaning port 6001, that is, the external contaminants are sucked in this way, and the contaminants are reduced from entering the safety clamp 1, that is, the dust is reduced from contacting with the friction block 2 and the trigger mechanism in the safety clamp 1, and the sucked contaminants will enter the waste barrel 8, and the inhaled air will be discharged through the filter 9, and the contaminants will be intercepted by the filter 9.

[0035] Example 2

[0036] On the basis of the above-mentioned embodiment 1, Figure 5-Figure 7As shown, a cleaning component is also included, which includes a first spring telescopic rod 101, a second connecting plate 102, a third connecting plate 103, a second spring telescopic rod 104, a scraper 105 and a limit plate 106; each first connecting plate 4 is fixedly connected to four first spring telescopic rods 101 distributed in a rectangular shape; each cleaning square tube 6 is provided with two symmetrically arranged second connecting plates 102; each second connecting plate 102 is fixedly connected to the corresponding two first spring telescopic rods 101; two symmetrically arranged third connecting plates 103 are fixedly connected to the safety clamp 1; each third connecting plate 103 is fixedly connected to two symmetrically arranged second spring telescopic rods 104; a scraper 105 is fixedly connected to the telescopic ends of the two second spring telescopic rods 104 on the same side; and two symmetrically arranged limit plates 106 are fixedly connected to the safety clamp 1.

[0037] The scraper 105 is arranged in an inclined shape to guide the square cleaning pipe 6 so that the square cleaning pipe 6 separated from the scraper 105 can enter the safety clamp 1 during the subsequent resetting process.

[0038] Each square dirt-cleaning tube 6 is provided with a telescopic portion 6002 for cooperating with the first spring telescopic rod 101 and the second connecting plate 102 to reduce damage to the square dirt-cleaning tube 6 .

[0039] During the movement of the elevator, the two lower cleaning square tubes 6 are in contact with the scraper 105, and the two upper cleaning square tubes 6 are in contact with the limit plate 106. Under the contraction force of the first spring telescopic rod 101, the cleaning square tubes 6 do not contact the guide rail 001, so as to avoid the cleaning square tubes 6 affecting the normal operation of the elevator. Figure 6 and Figure 7 As shown, when the first spring telescopic rod 101 drives the cleaning square tube 6 away from the guide rail 001, the cleaning square tube 6 will contact the corresponding scraper 105 and the limiting plate 106, and the scraper 105 and the limiting plate 106 limit and guide the cleaning square tube 6, so that when the electric push rod 3 drives the cleaning square tube 6 to clean the friction block 2, the scraper 105 and the limiting plate 106 guide the movement of the cleaning square tube 6, so that the cleaning square tube 6 can smoothly enter the safety clamp 1 again. When the elevator falls, the electric push rod 3 below is controlled to move forward under the control of the intelligent control system therein. The second spring telescopic rod 104 pushes the scraper 105 below to move the scraper 105 downward and separate from the scraper 105. Due to the loss of the limit of the scraper 105, the scraper 105 is pushed by the second spring telescopic rod 104 under the thrust of the compressed second spring telescopic rod 104, so that the scraper 105 is tightly attached to the guide rail 001, so that the lubricating oil on the guide rail 001 is cleaned by the scraper 105, and the trigger mechanism in the safety clamp 1 contacts and drives the friction block 2 to clamp the guide rail 001, thereby reducing the influence of the lubricating oil on the guide rail 001 on the friction block 2, so that the elevator can brake faster.

[0040] It should be noted that the scraper 105 is arranged in an inclined shape. When the second spring telescopic rod 104 pushes the scraper 105, the scraper 105 is tightly attached to the guide rail 001. After the first spring telescopic rod 101 drives the cleaning square tube 6 to shrink to the limit, the cleaning square tube 6 is still within the vertical range of the scraper 105. Therefore, when the electric push rod 3 subsequently drives the cleaning square tube 6 to clean the friction block 2, the scraper 105 can still guide the cleaning square tube 6. At the same time, the cleaning square tube 6 presses the scraper 105, so that the scraper 105 compresses the second spring telescopic rod 104, and the scraper 105 is reset.

[0041] Example 3

[0042] Based on the above embodiment 2, Figure 8 As shown, a blocking component is also included, which includes a fourth connecting plate 201 and a blocking block 202; each square sewage cleaning pipe 6 is fixedly connected to the fourth connecting plate 201, and all the fourth connecting plates 201 on the same side are commonly fixedly connected to the blocking block 202.

[0043] A rubber strip is provided at the connection between the fourth connecting plate 201 and the square cleaning pipe 6 to enhance the sealing effect.

[0044] The blocking block 202 is made of elastic rubber material, and through stretching deformation, friction between the blocking block 202 and the guide rail 001 is avoided during the movement of the elevator.

[0045] When the elevator stops running (stops at a certain floor or stops working), when the electric push rod 3 drives the cleaning square pipe 6 to enter the safety clamp 1, the cleaning square pipe 6 drives the fourth connecting plate 201 to move downward close to and contact the safety clamp 1, and the fourth connecting plate 201 drives the blocking block 202 to approach and fit the safety clamp 1, and the blocking block 202 fits the guide rail 001, that is, the blocking block 202 cooperates with the cleaning square pipe 6 to completely block the gap between the guide rail 001 and the safety clamp 1, so as to further improve the sealing effect and avoid the outside from cleaning the safety clamp 1 when the cleaning square pipe 6 cleans the safety clamp 1 when the elevator stops running. Pollutants in the external air enter the safety clamp 1. When the elevator moves, the cleaning square tube 6 will drive the fourth connecting plate 201 and the blocking block 202 away from the safety clamp 1. At the same time, under the action of the first spring telescopic rod 101, the cleaning square tube 6 is driven away from the guide rail 001, that is, the four cleaning square tubes 6 drive the four fourth connecting plates 201 away from the guide rail 001, and stretch the blocking block 202 through the fourth connecting plate 201, so that the blocking block 202 is deformed and away from the guide rail 001, so as to avoid the blocking block 202 from being close to the guide rail 001 when the elevator moves, causing the blocking block 202 to be worn and affecting the subsequent blocking effect.

[0046] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. An intelligent protection device for an elevator, comprising a safety clamp (1) and a friction block (2); a plurality of friction blocks (2) are fixedly connected to the safety clamp (1); the characteristics are: It also comprises an electric push rod (3), a first connecting plate (4), a connecting pipe (5), a square cleaning pipe (6), a suction pump (7), a waste barrel (8) and a filter (9); a plurality of electric push rods (3) are fixedly connected to the safety clamp (1); the telescopic end of each electric push rod (3) is fixedly connected to the first connecting plate (4); each first connecting plate (4) is fixedly connected to a connecting pipe (5); each connecting pipe (5) is connected to the square cleaning pipe (6); a plurality of waste barrels (8) are fixedly connected to the safety clamp (1); each waste barrel (8) is connected to a plurality of suction pumps (7); each suction pump (7) is connected to the corresponding connecting pipe (5); each waste barrel (8) is connected to the filter (9); The cleaning assembly also comprises a cleaning component, which comprises a first spring telescopic rod (101), a second connecting plate (102), a third connecting plate (103), a second spring telescopic rod (104), a scraper (105) and a limit plate (106); each first connecting plate (4) is fixedly connected to a plurality of first spring telescopic rods (101); each cleaning square tube (6) is provided with a plurality of second connecting plates (102); each second connecting plate (102) is fixedly connected to a corresponding plurality of first spring telescopic rods (101); a plurality of third connecting plates (103) are fixedly connected to the safety clamp (1); each third connecting plate (103) is fixedly connected to a plurality of second spring telescopic rods (104); a scraper (105) is fixedly connected to the telescopic ends of a plurality of second spring telescopic rods (104) on the same side; and a plurality of limit plates (106) are fixedly connected to the safety clamp (1).

2. An intelligent protection device for elevator according to claim 1, characterized in that: Each cleaning square tube (6) is provided with a plurality of cleaning ports (6001) on one side facing the corresponding friction block (2).

3. An intelligent protection device for elevator according to claim 1, characterized in that: The pipe opening of the lower sewage cleaning square pipe (6) is arranged to be an inclined structure.

4. An intelligent protection device for elevator according to claim 2, characterized in that: Each cleaning port (6001) is rotatably connected to a cleaning roller (6003), the cleaning roller (6003) is directly opposite to a through slot provided on the friction block (2), and the paddle on the cleaning roller (6003) is made of rubber material, while the paddle of the cleaning roller (6003) protrudes beyond the cleaning port (6001).

5. The intelligent protection device for elevator according to claim 1, characterized in that: The scraper (105) is arranged in an inclined shape.

6. An intelligent protection device for elevator according to claim 1, characterized in that: Each square sewage cleaning tube (6) is provided with a telescopic portion (6002).

7. An intelligent protection device for elevator according to claim 6, characterized in that: It also includes a blocking component, which includes a fourth connecting plate (201) and a blocking block (202); each square sewage cleaning tube (6) is fixedly connected to the fourth connecting plate (201), and all fourth connecting plates (201) on the same side are fixedly connected to the blocking block (202).

8. An intelligent protection device for elevator according to claim 7, characterized in that: A rubber strip is provided at the connection between the fourth connecting plate (201) and the sewage cleaning square pipe (6).

9. An intelligent protection device for elevator according to claim 7, characterized in that: The blocking block (202) is made of elastic rubber material.

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