Safety protection device for emergency braking of elevator

Abstract

The safety protection device for elevator emergency braking relates to the technical field of elevator safety protection and comprises a bottom box, a barrel is mounted on the inner wall of the bottom of the bottom box, a first pressing rod is movably mounted at the top of the barrel in a penetrating mode, and a first lifting plate component is mounted at one end of the first pressing rod; a second spring component is mounted at the top of the first lifting plate component. The second spring component firstly buffers the elevator for the first time, then pressure is continuously applied to the first lifting plate component and the first spring component, the first spring component buffers the elevator for the second time, and when the elevator does not press the second lifting plate component downwards, the movable rod and the second brush component are located in the through hole, so that the through hole can be dredged; and the situation that hydraulic oil cannot pass through the through hole due to impurities attached to the interior of the through hole or the first lifting plate component descends slowly and cannot effectively buffer falling of the elevator due to the fact that the speed of passing through the through hole is slowed is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of elevator safety protection, in particular to a safety protection device for elevator emergency braking. Background Art

[0002] The elevator emergency brake safety protection device includes a speed limiting wheel, a power-off locking device at the traction machine and a buffer at the bottom of the elevator shaft. The hydraulic buffer is used in situations where the elevator descends quickly. It can buffer the rapidly descending elevator and reduce the damage caused by the elevator falling to the ground. The hydraulic buffer generally includes a hydraulic damper and a spring. Since the hydraulic damper has a fixed height, when the depth of the elevator shaft is fixed, the length of the hydraulic damper is limited by the depth of the elevator shaft. The shorter the buffer mileage, the higher the impact force when the elevator is buffered and decelerated, and the worse the damage reduction ability. In addition, the hydraulic oil in the hydraulic shock absorber is prone to turbidity due to wear and rust of the equipment. The sealing performance problem will also cause external impurities to enter the hydraulic oil, causing the fluidity of the hydraulic oil to deteriorate, making the buffering performance worse when the elevator collides.

[0003] The defects of existing elevator buffers are:

[0004] 1. Prior art US20030217895A1 discloses an elevator buffer device, which does not have a structure for clearing the flow channel of the hydraulic oil in the hydraulic shock absorber. When impurities invade the hydraulic cylinder due to poor sealing or the channel is blocked due to wear and rust in the cylinder body, the shock absorbing and buffering ability of the hydraulic shock absorber will deteriorate. Therefore, a safety protection device for elevator emergency braking that can prevent the flow channel of the hydraulic oil in the hydraulic shock absorber from being blocked is needed to solve this problem.

[0005] 2. The prior art KR100316608B1 discloses an elevator hydraulic shock absorber. When a spring is set on the outside of the shock absorber, the maximum length of the spring itself limits the length of the spring, and the buffering mileage of the hydraulic shock absorber is limited. Therefore, a safety protection device for elevator emergency braking that can increase the buffering mileage of the hydraulic shock absorber is needed to solve this problem.

[0006] 3. The prior art US7287626B2 discloses an elevator buffer device, which does not have the function of reducing impurities in the hydraulic shock absorber. When impurities are generated in the hydraulic shock absorber, the fluidity of the hydraulic oil in the hydraulic shock absorber will deteriorate, causing the shock absorbing ability of the hydraulic shock absorber to deteriorate. Therefore, a safety protection device for elevator emergency braking that can remove impurities in the hydraulic shock absorber is needed to solve this problem.

[0007] 4. The prior art CN209800599U discloses an elevator buffer, which does not have a structure for filtering impurities in the hydraulic shock absorber. When an external filter is set to filter the hydraulic oil, the filter plate is easily blocked, resulting in a poor filtering ability for the hydraulic oil. Therefore, a safety protection device for elevator emergency braking is needed to filter the hydraulic oil of the hydraulic shock absorber and ensure that the filter plate will not be blocked to solve this problem. Summary of the invention

[0008] One purpose of the present application is to provide a safety protection device for elevator emergency braking, which can solve the technical problems raised in the prior art.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a safety protection device for emergency braking of an elevator, comprising a bottom box, a cylinder and a pressure rod 1, a controller component is installed on the top of the bottom box, a cylinder is installed on the bottom inner wall of the bottom box, and the top of the cylinder penetrates the top of the bottom box, a pressure rod 1 is movably installed through the top of the cylinder, and one end of the pressure rod 1 penetrates the top inner wall of the cylinder, a lifting plate component 1 is installed on one end of the pressure rod 1, a pressure plate is installed on one end of the pressure rod 1, and the pressure plate is located inside the cylinder, and a through hole is opened through the top of the pressure plate;

[0010] A box body is installed on the top inner wall of the cylinder, and the box body is located on the outside of the pressure rod; a dredging mechanism is symmetrically penetrated and movably arranged on the bottom of the box body; a horizontal plate component is installed on one side of the bottom box; a pump body component is installed on the top of the horizontal plate component; the pump body component is electrically connected to the controller component; a filter box is installed on the top of the horizontal plate component, and an input end on one side of the filter box is connected to an output end of the pump body component through a pipeline.

[0011] Preferably, a laser rangefinder component is installed on the top of the base box, the laser rangefinder component is electrically connected to the controller component, the laser rangefinder component is located behind the controller component, a timer is installed on the top of the base box, the timer is electrically connected to the controller component, the timer is located behind the laser rangefinder component, a vertical plate component is installed on one side of the base box, an electric telescopic rod component 1 is installed on one side of the vertical plate component, the electric telescopic rod component 1 is electrically connected to the controller component, a brush component 1 is installed on the output end of the electric telescopic rod component 1, and the brush component 1 is located in the laser rangefinder component, and the laser rangefinder component is electrically connected to the controller component.

[0012] Preferably, a spring component 1 is installed at the bottom of the lifting plate component 1, and the spring component 1 is located on the outside of the cylinder, a rubber pad is installed on the top of the lifting plate component 2, a pressure rod 2 is installed at the bottom of the lifting plate component 2, and one end of the pressure rod 2 passes through the bottom of the lifting plate component 1.

[0013] Preferably, a spring component 2 is installed on the top of the lifting plate component 1, and a lifting plate component 2 is installed on one end of the spring component 2.

[0014] Preferably, a rubber sleeve is installed on the outer side of the pressure plate, and the dredging mechanism includes a movable rod, a brush component 2 and a limit block. A plurality of movable rods are symmetrically penetrated and movably installed on the bottom of the box body, and one end of the movable rod penetrates the bottom inner wall of the box body, a brush component 2 is installed on the outer side of the movable rod, and the brush component 2 is located on the inner side of the through hole, a limit block is installed on one end of the movable rod, and the limit block is located inside the box body.

[0015] Preferably, a heating rod component is installed inside the cylinder, and one end of the heating rod component passes through the back side of the cylinder, and the heating rod component is electrically connected to the controller component; a temperature sensor component is installed on the front side of the cylinder, and one end of the temperature sensor component passes through the front inner wall of the cylinder, and the temperature sensor component is electrically connected to the controller component.

[0016] Preferably, a tube body component 1 is installed at the front output end of the cylinder, and one end of the tube body component 1 passes through one side of the bottom box, a solenoid valve component is installed at the output end of the tube body component 1, the solenoid valve component is electrically connected to the controller component, the input end of the pump body component is connected to the output end of the solenoid valve component through a pipeline, a tube body component 2 is installed at the front input end of the cylinder, one end of the tube body component 2 passes through one side of the bottom box, and a one-way valve component is installed at the input end of the tube body component 2.

[0017] Preferably, a tube body component three is installed at one output end of the filter box, and the output end of the tube body component three is connected to the input end of the one-way valve component.

[0018] Preferably, a movable cover is movably installed on the top of the filter box through a hinge, blocks are symmetrically installed on the front and back of the filter box, a threaded rod is installed through the top of the block, a second baffle component is installed at one end of the threaded rod, and the second baffle component is located above the movable cover.

[0019] Preferably, a filter plate is installed inside the filter box, a mesh plate is installed on the front of the filter plate, a plurality of rotating rods are movably installed through the front of the filter plate, a brush component three is installed at one end of the rotating rod, and the brush component three is located in front of the filter plate, a bolt is installed through the top of the rotating rod, and the bolt is located behind the filter plate, a baffle component one is symmetrically installed on the inner side of the filter box, and the baffle component one is located behind the filter plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, when the elevator does not press down the lifting plate component 2, the movable rod and the brush component 2 are located inside the through hole, which can dredge the through hole to prevent the hydraulic oil from being unable to pass through the through hole due to impurities attached to the through hole or the speed of passing through the through hole is slowed down, causing the lifting plate component 1 to descend slowly and unable to effectively buffer the elevator fall.

[0022] 2. When the elevator of the present invention contacts the rubber pad on the lifting plate component 2 during an emergency fall, pressure is first applied to the spring component 2, and the spring component 2 first buffers the elevator for the first time, and then continues to apply pressure to the lifting plate component 1 and the spring component 1, and the spring component 1 buffers the elevator for the second time. The buffering distance of the elevator is longer, and the cylinder can be made shorter at the same time, and the pressure rod 2 can guide the lifting plate component 2 to avoid the lifting plate component 2 and the spring component 2 from tilting, resulting in the inability to effectively support and buffer the elevator.

[0023] 3. The present invention can set time through a timer. The pump body component sucks the hydraulic oil inside the cylinder into the filter box to be filtered by the filter plate, thereby reducing impurities in the hydraulic oil in the cylinder. The oil is then transported into the cylinder to reduce the impurities inside the cylinder caused by rust, wear or external invasion that affect the fluidity of the hydraulic oil, thereby preventing the pressure plate from moving downward at a slower speed due to poor fluidity of the hydraulic oil and failing to effectively buffer the falling elevator.

[0024] 4. The present invention drives the hydraulic oil into the filter box through the pump body component to impact the brush component three, and the brush component three swings to clean the filter plate to prevent the filter plate from being blocked. By taking out the filter plate and the mesh plate, impurities precipitated on the mesh plate can be easily discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 It is a front cross-sectional view of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of A of the present invention;

[0028] Figure 4 It is a structural schematic diagram of a lifting plate component of the present invention;

[0029] Figure 5 It is a structural schematic diagram of a compression rod of the present invention;

[0030] Figure 6 It is a schematic diagram of the bottom box structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the vertical plate component of the present invention;

[0032] Figure 8It is a schematic diagram of the filter box and the cylinder structure of the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure of the filter box of the present invention;

[0034] Fig.10 It is a schematic diagram of the filter plate structure of the present invention;

[0035] Fig.11 The figure is a flow chart of the method for using the present invention.

[0036] In the figure: 1, bottom box; 2, controller component; 3, laser rangefinder component; 4, timer; 5, vertical plate component; 6, electric telescopic rod component 1; 7, brush component 1; 8, cylinder; 9, pressure rod 1; 10, lifting plate component 1; 11, spring component 1; 12, spring component 2; 13, lifting plate component 2; 14, rubber pad; 15, pressure rod 2; 16, pressure plate; 17, through hole; 18, rubber sleeve; 19, box body; 20, movable rod; 21, brush component 2; 22, Limit block; 23. Heating rod component; 24. Temperature sensor component; 25. Tube component one; 26. Solenoid valve component; 27. Tube component two; 28. One-way valve component; 29. ​​Cross plate component; 30. Pump body component; 31. Filter box; 32. Movable cover; 33. Tube component three; 34. Filter plate; 35. Grid plate; 36. Rotating rod; 37. Brush component three; 38. Bolt; 39. Stop rod component one; 40. Block; 41. Threaded rod; 42. Stop rod component two. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 , an embodiment provided by the present invention: a safety protection device for emergency braking of an elevator;

[0041] The invention comprises a bottom box 1, a cylinder 8 and a pressure rod 9, wherein a controller component 2 is installed on the top of the bottom box 1, a cylinder 8 is installed on the bottom inner wall of the bottom box 1, and the top of the cylinder 8 passes through the top of the bottom box 1, a pressure rod 9 is movably installed on the top of the cylinder 8, and one end of the pressure rod 9 passes through the top inner wall of the cylinder 8, a lifting plate component 10 is installed on one end of the pressure rod 9, a spring component 2 12 is installed on the top of the lifting plate component 10, a lifting plate component 2 13 is installed on one end of the spring component 2 12, a pressure plate 16 is installed on one end of the pressure rod 9, and the pressure plate 16 is located inside the cylinder 8, and the pressure plate 16 A through hole 17 is provided through the top of the lifting plate component 10, a spring component 11 is installed at the bottom of the lifting plate component 10, and the spring component 11 is located on the outside of the cylinder 8, a rubber pad 14 is installed on the top of the lifting plate component 13, a pressure rod 2 15 is installed at the bottom of the lifting plate component 13, and one end of the pressure rod 2 15 passes through the bottom of the lifting plate component 10, the bottom box 1 can provide an installation position for other components of the device, the controller component 2 can receive signals from the laser rangefinder component 3, the timer 4 and the temperature sensor component 24, and can also control the electric telescopic rod component 6, the heating rod component 23, The solenoid valve component 26 and the pump body component 30 are controlled, the cylinder 8 can store hydraulic oil and provide space for the movement of the pressure plate 16, the pressure rod 9 can move up and down, so that the pressure plate 16 can move up and down, the lifting plate component 10 can receive the pressure from the spring component 2 12 and transfer the pressure to the spring component 11, the spring component 2 12 can buffer the impact from the lifting plate component 2 13, and reduce the instantaneous impact force when the elevator falls, the lifting plate component 2 13 can provide support for the falling elevator, and the rubber pad 14 can prevent the elevator from directly colliding with the lifting plate when it falls. The noise generated by the plate component 13 is that the pressure plate 16 can squeeze the hydraulic oil in the cylinder 8 below the pressure plate 16 by moving downward, so that the hydraulic oil is squeezed through the through hole 17 to flow upward, and at the same time, the descending speed of the pressure rod 9, the lifting plate component 10 and the lifting plate component 13 can be reduced while squeezing the hydraulic oil. The through hole 17 can provide a path for the hydraulic oil below the pressure plate 16 to flow to the top of the pressure plate 16. The spring component 11 can buffer the impact force from the lifting plate component 10. The pressure rod 15 plays a guiding role, so that the lifting plate component 13 can only move up and down.

[0042] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 , an embodiment provided by the present invention: a safety protection device for emergency braking of an elevator;

[0043] The utility model comprises a box body 19 and a dredging mechanism. The box body 19 is installed on the top inner wall of the cylinder 8, and the box body 19 is located on the outside of the pressure rod 19. The rubber sleeve 18 is installed on the outside of the pressure plate 16. The bottom of the box body 19 is symmetrically penetrated and movably provided with a dredging mechanism. The dredging mechanism comprises a movable rod 20, a brush component 21 and a limit block 22. A plurality of movable rods 20 are symmetrically penetrated and movably installed on the bottom of the box body 19, and one end of the movable rod 20 penetrates the bottom inner wall of the box body 19. A brush component 21 is installed on the outside of the movable rod 20, and the brush component 21 is located on the inner side of the through hole 17. A limit block 22 is installed on one end of the movable rod 20, and the limit block 22 Located inside the box body 19, the box body 19 can provide a filtering space for the hydraulic oil inside the filter cylinder 8, the rubber sleeve 18 can reduce the impurities generated by the friction between the pressure plate 16 and the inner wall of the cylinder 8, the movable rod 20 can move up and down, so that the brush component 21 can move up and down, and when the pressure plate 16 moves down instantly, the hydraulic oil can impact the brush component 21 and the movable rod 20 and move them upward to reduce the resistance of the hydraulic oil to flow upward through the through hole 17. The brush component 21 can reduce the amount of impurities inside the through hole 17 and reduce the possibility of the through hole 17 being blocked. The limit block 22 can prevent the movable rod 20 from moving down and out of the box body 19.

[0044] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 , an embodiment provided by the present invention: a safety protection device for emergency braking of an elevator;

[0045] The invention comprises a laser rangefinder component 3 and a vertical plate component 5. The laser rangefinder component 3 is installed on the top of the bottom box 1. The laser rangefinder component 3 is electrically connected to the controller component 2. The laser rangefinder component 3 is located behind the controller component 2. A timer 4 is installed on the top of the bottom box 1. The timer 4 is electrically connected to the controller component 2. The timer 4 is located behind the laser rangefinder component 3. A vertical plate component 5 is installed on one side of the bottom box 1. An electric telescopic rod component 6 is installed on one side of the vertical plate component 5. The electric telescopic rod component 6 is electrically connected to the controller component 2. A brush component 7 is installed on the output end of the electric telescopic rod component 6, and the brush component 7 is located at the laser rangefinder component 3. The laser The optical rangefinder component 3 is connected with the controller component 2 in electrical signal connection. The laser rangefinder component 3 can measure the distance between itself and the elevator above, so that when the distance between the elevator and the safety protection device is lower than the set value, the pump body component 30 can stop working to ensure the stability of the hydraulic oil inside the cylinder 8. The timer 4 plays a timing role. The vertical plate component 5 can provide an installation position for the electric telescopic rod component 6. The electric telescopic rod component 6 can convert electrical energy into kinetic energy, thereby driving the brush component 7 to move left and right. The brush component 7 can clean the dust on the laser emitting end of the laser rangefinder component 3 to ensure that the laser rangefinder component 3 can effectively measure the distance between itself and the elevator.

[0046] See also Figure 1 and Figure 2 , an embodiment provided by the present invention: a safety protection device for emergency braking of an elevator;

[0047] It includes a heating rod component 23 and a temperature sensor component 24. The heating rod component 23 is installed inside the cylinder 8, and one end of the heating rod component 23 passes through the back side of the cylinder 8. The heating rod component 23 is electrically connected to the controller component 2. The temperature sensor component 24 is installed on the front side of the cylinder 8, and one end of the temperature sensor component 24 passes through the front inner wall of the cylinder 8. The temperature sensor component 24 is electrically connected to the controller component 2. The heating rod component 23 can convert electrical energy into thermal energy, thereby heating the hydraulic oil to avoid the deterioration of fluidity of the hydraulic oil at low temperatures. The temperature sensor component 24 can measure the temperature of the hydraulic oil inside the cylinder 8.

[0048] See also Figure 1 , Figure 2 , Figure 6 and Figure 8 , an embodiment provided by the present invention: a safety protection device for emergency braking of an elevator;

[0049] The invention comprises a tube body component 25 and a cross plate component 29, a tube body component 25 is installed at the front output end of the cylinder 8, and one end of the tube body component 25 passes through one side of the bottom box 1, a solenoid valve component 26 is installed at the output end of the tube body component 25, and the solenoid valve component 26 is electrically connected to the controller component 2, a tube body component 27 is installed at the front input end of the cylinder 8, one end of the tube body component 27 passes through one side of the bottom box 1, a one-way valve component 28 is installed at the input end of the tube body component 27, a cross plate component 29 is installed at one side of the bottom box 1, a pump body component 30 is installed at the top of the cross plate component 29, the pump body component 30 is electrically connected to the controller component 2, the input end of the pump body component 30 is connected to the output end of the solenoid valve component 26 through a pipeline, a filter box 31 is installed at the top of the cross plate component 29, and one side input end of the filter box 31 is connected to the output end of the pump body component 30 through a pipeline, and the filter box 31 is installed A tube body component three 33 is installed at an output end on one side of 1, and the output end of the tube body component three 33 is connected to the input end of the one-way valve component 28. The tube body component one 25 can provide a transmission path for the hydraulic oil inside the cylinder 8 to enter the solenoid valve component 26. The solenoid valve component 26 controls the hydraulic oil in the tube body component one 25 to enter the pump body component 30. The tube body component two 27 can provide a transmission path for the hydraulic oil in the one-way valve component 28 to enter the cylinder 8. The one-way valve component 28 can control the hydraulic oil in the tube body component three 33 to enter the tube body component two 27. The cross plate component 29 can provide an installation position for the filter box 31 and the pump body component 30. The pump body component 30 can suck the hydraulic oil in the cylinder 8 into the filter box 31. The filter box 31 can provide a filtering space for hydraulic oil filtering. The tube body component three 33 can provide a transmission path for the hydraulic oil filtered in the filter box 31 to enter the one-way valve component 28.

[0050] See also Figure 1 and Figure 8 , an embodiment provided by the present invention: a safety protection device for emergency braking of an elevator;

[0051] The filter box 31 includes a movable cover 32 and a block 40. The movable cover 32 is movably installed on the top of the filter box 31 through a hinge. The blocks 40 are symmetrically installed on the front and back of the filter box 31. A threaded rod 41 is installed through the top of the block 40. A blocking rod component 42 is installed at one end of the threaded rod 41, and the blocking rod component 42 is located above the movable cover 32. A sealing gasket is provided at the bottom of the movable cover 32. The movable cover 32 can close the top opening of the filter box 31. The block 40 can provide an installation position for the threaded rod 41. The threaded rod 41 can provide an installation position for the blocking rod component 42. At the same time, the threaded rod 41 can rotate, so that the blocking rod component 42 can rotate. The blocking rod component 42 can limit and fix the movable cover 32 by rotating to the top of the movable cover 32 to prevent the movable cover 32 from rotating upward.

[0052] See also Figure 1 , Figure 8 , Fig. 9 and Fig.10 , an embodiment provided by the present invention: a safety protection device for emergency braking of an elevator;

[0053] The filter box 31 includes a filter plate 34, a filter plate 34 is installed inside the filter box 31, a mesh plate 35 is installed on the front of the filter plate 34, a plurality of rotating rods 36 are movably installed through the front of the filter plate 34, a brush component 37 is installed at one end of the rotating rod 36, and the brush component 37 is located in front of the filter plate 34, a bolt 38 is installed through the top of the rotating rod 36, and the bolt 38 is located behind the filter plate 34, a stopper component 39 is symmetrically installed on the inner side of the filter box 31, and the stopper component 39 is located behind the filter plate 34, the filter plate 34 can filter the hydraulic oil entering the filter box 31, and enter the filter box 31 through the pipe body component 25. The hydraulic oil of 1 flows backward through the filter plate 34, and the impurities are filtered, and then flow into the tube body part three 33. The grid plate 35 can receive the impurities dropped on the filter plate 34, so as to lift the impurities upward and then discharge them. The rotating rod 36 can rotate, so that the brush part three 37 can rotate. The brush part three 37 can sweep the impurities on the filter plate 34 when it swings by the impact of the hydraulic oil flowing into the filter box 31 by the tube body part one 25, so as to avoid the filter plate 34 being blocked. The bolt 38 can prevent the rotating rod 36 from moving forward and falling off the filter plate 34. The stop rod part one 39 can limit the filter plate 34 to prevent the filter plate 34 from moving backward.

[0054] The use of the safety protection device for elevator emergency braking is as follows:

[0055] S1, when the elevator contacts the rubber pad 14 on the lifting plate component 13 during emergency fall, it first applies pressure to the spring component 12, which first buffers the elevator, and then continues to apply pressure to the lifting plate component 10 and the spring component 11, which buffers the elevator for the second time;

[0056] S2, when the lifting plate component 10 moves downward, it drives the pressing plate 16 to move downward, and the pressing plate 16 applies pressure to the hydraulic oil inside the cylinder 8. The hydraulic oil inside the cylinder 8 slowly flows to the top of the pressing plate 16 through the through hole 17, thereby applying resistance to the downward movement of the pressing plate 16, causing the pressing plate 16 to move downward slowly, thereby causing the lifting plate component 10 and the elevator to move downward slowly, thereby slowing down the elevator;

[0057] S3, when the elevator is not falling rapidly, when the timer 4 reaches the set value, the pump body component 30 sucks the hydraulic oil inside the cylinder 8 into the filter box 31 to be filtered by the filter plate 34, thereby reducing the impurities in the hydraulic oil in the cylinder 8, and then transporting it into the cylinder 8;

[0058] S4, the pump body component 30 drives the hydraulic oil to enter the filter box 31 and impacts the brush component three 37. The brush component three 37 swings to prevent the filter plate 34 from being blocked, and the impurities on the mesh plate 35 are discharged by taking out the filter plate 34 and the mesh plate 35.

[0059] S4 also includes the following steps:

[0060] S41, when the laser rangefinder component 3 detects that the distance of the elevator above itself is lower than the set value, the pump body component 30 stops working.

[0061] Working principle: Before using the elevator emergency brake safety protection device, you should first check whether the elevator emergency brake safety protection device has any problems that affect its use. When the elevator contacts the rubber pad 14 on the lifting plate component 13 during an emergency drop, it first applies pressure to the spring component 12. The spring component 12 first buffers the elevator for the first time, and then continues to apply pressure to the lifting plate component 10 and the spring component 11. The spring component 11 buffers the elevator for the second time. When the lifting plate component 10 moves downward, it drives the pressure plate 16 to move downward. The pressure plate 16 applies pressure to the hydraulic oil inside the cylinder 8. The hydraulic oil inside the cylinder 8 slowly flows to the top of the pressure plate 16 through the through hole 17, thereby applying resistance to the downward movement of the pressure plate 16, causing the pressure plate 16 to move slowly downward, thereby causing the lifting plate component 10 and the elevator to move slowly downward, thereby causing the elevator When the elevator is decelerated and the timer 4 reaches the set value, the pump body component 30 draws the hydraulic oil inside the cylinder 8 into the filter box 31 and is filtered by the filter plate 34 to reduce the impurities in the hydraulic oil in the cylinder 8, and then transports it into the cylinder 8. The pump body component 30 drives the hydraulic oil to enter the filter box 31 and impacts the brush component 37. The brush component 37 swings to prevent the filter plate 34 from being blocked. The impurities on the grid plate 35 are discharged by taking out the filter plate 34 and the grid plate 35. When the laser rangefinder component 3 detects that the distance of the elevator above is lower than the set value, the pump body component 30 stops working and the solenoid valve component 26 is closed. When the elevator does not press down the lifting plate component 2 13, the brush component 2 21 dredges the through hole 17 to prevent the through hole 17 from being blocked by impurities gradually generated in the hydraulic oil.

[0062] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference signs in the claims should not be regarded as limiting the rights involved.

Claims

1. A safety protection device for elevator emergency braking, characterized in that: It comprises a bottom box (1), a cylinder (8) and a pressure rod (9), wherein a controller component (2) is mounted on the top of the bottom box (1), a cylinder (8) is mounted on the bottom inner wall of the bottom box (1), and the top of the cylinder (8) passes through the top of the bottom box (1), a pressure rod (9) is movably mounted on the top of the cylinder (8), and one end of the pressure rod (9) passes through the top inner wall of the cylinder (8), a lifting plate component (10) is mounted on one end of the pressure rod (9), a pressure plate (16) is mounted on one end of the pressure rod (9), and the pressure plate (16) is located inside the cylinder (8), and a through hole (17) is opened through the top of the pressure plate (16); A box body (19) is installed on the inner wall of the top of the cylinder (8), and the box body (19) is located on the outside of the pressure rod (9). A dredging mechanism is symmetrically and movably arranged through the bottom of the box body (19). A horizontal plate component (29) is installed on one side of the bottom box (1). A pump body component (30) is installed on the top of the horizontal plate component (29). The pump body component (30) is connected to the controller component (2) via an electrical signal. A filter box (31) is installed on the top of the horizontal plate component (29), and an input end of one side of the filter box (31) is connected to an output end of the pump body component (30) via a pipeline.

2. The safety protection device for elevator emergency braking according to claim 1 is characterized in that: A laser rangefinder component (3) is installed on the top of the bottom box (1), the laser rangefinder component (3) is electrically connected to the controller component (2), and the laser rangefinder component (3) is located behind the controller component (2). A timer (4) is installed on the top of the bottom box (1), the timer (4) is electrically connected to the controller component (2), and the timer (4) is located behind the laser rangefinder component (3). A vertical plate component (5) is installed on one side of the bottom box (1), and an electric telescopic rod component (6) is installed on one side of the vertical plate component (5), the electric telescopic rod component (6) is electrically connected to the controller component (2), a brush component (7) is installed on the output end of the electric telescopic rod component (6), and the brush component (7) is located on the laser rangefinder component (3), and the laser rangefinder component (3) is electrically connected to the controller component (2).

3. The safety protection device for elevator emergency braking according to claim 1 is characterized in that: A spring component (11) is installed at the bottom of the lifting plate component (10), and the spring component (11) is located outside the cylinder (8). A rubber pad (14) is installed at the top of the lifting plate component (13). A pressure rod (15) is installed at the bottom of the lifting plate component (13), and one end of the pressure rod (15) passes through the bottom of the lifting plate component (10).

4. The safety protection device for elevator emergency braking according to claim 1, characterized in that: A spring component 2 (12) is installed on the top of the lifting plate component 1 (10), and a lifting plate component 2 (13) is installed on one end of the spring component 2 (12).

5. The elevator emergency brake safety protection device according to claim 1, characterized in that: A rubber sleeve (18) is installed on the outer side of the pressure plate (16), and the dredging mechanism comprises a movable rod (20), a second brush component (21) and a limit block (22). A plurality of movable rods (20) are symmetrically penetrated and movably installed on the bottom of the box body (19), and one end of the movable rod (20) penetrates the bottom inner wall of the box body (19). A second brush component (21) is installed on the outer side of the movable rod (20), and the second brush component (21) is located on the inner side of the through hole (17). A limit block (22) is installed on one end of the movable rod (20), and the limit block (22) is located inside the box body (19).

6. The safety protection device for elevator emergency braking according to claim 1, characterized in that: A heating rod component (23) is installed inside the cylinder (8), and one end of the heating rod component (23) passes through the back of the cylinder (8), and the heating rod component (23) is electrically connected to the controller component (2); a temperature sensor component (24) is installed on the front of the cylinder (8), and one end of the temperature sensor component (24) passes through the front inner wall of the cylinder (8), and the temperature sensor component (24) is electrically connected to the controller component (2).

7. The safety protection device for elevator emergency braking according to claim 1, characterized in that: A tube body component 1 (25) is installed at the front output end of the cylinder (8), and one end of the tube body component 1 (25) passes through one side of the bottom box (1). A solenoid valve component (26) is installed at the output end of the tube body component 1 (25), and the solenoid valve component (26) is connected to the controller component (2) via an electrical signal. The input end of the pump body component (30) is connected to the output end of the solenoid valve component (26) via a pipeline. A tube body component 2 (27) is installed at the front input end of the cylinder (8), and one end of the tube body component 2 (27) passes through one side of the bottom box (1). A check valve component (28) is installed at the input end of the tube body component 2 (27).

8. The safety protection device for elevator emergency braking according to claim 7, characterized in that: A tube body component three (33) is installed at one output end of the filter box (31), and the output end of the tube body component three (33) is connected to the input end of the one-way valve component (28).

9. The safety protection device for elevator emergency braking according to claim 1, characterized in that: A movable cover (32) is movably mounted on the top of the filter box (31) via a hinge, a block (40) is symmetrically mounted on the front and back of the filter box (31), a threaded rod (41) is mounted through the top of the block (40), a second blocking rod component (42) is mounted on one end of the threaded rod (41), and the second blocking rod component (42) is located above the movable cover (32).

10. The elevator emergency brake safety protection device according to claim 1, characterized in that: A filter plate (34) is installed inside the filter box (31), a mesh plate (35) is installed on the front of the filter plate (34), a plurality of rotating rods (36) are movably installed through the front of the filter plate (34), a brush component three (37) is installed at one end of the rotating rod (36), and the brush component three (37) is located in front of the filter plate (34), a bolt (38) is installed through the top of the rotating rod (36), and the bolt (38) is located behind the filter plate (34), and a blocking rod component one (39) is symmetrically installed on the inner side of the filter box (31), and the blocking rod component one (39) is located behind the filter plate (34).

Images