Hydraulic cushioning and grading spring safety auxiliary device

Abstract

The utility model discloses a kind of hydraulic buffering grading rebound safety auxiliary devices, belong to safety auxiliary device technical field, including fixed seat, the upper portion of the fixed seat is provided with self-checking mechanism, self-checking mechanism includes two first hydraulic rams, the outer surface of each first hydraulic ram is fixedly connected to the inner wall of fixed seat, the telescopic end of two first hydraulic rams is fixedly connected with lifting plate, the inner wall of lifting plate is rotatably connected with spiral cylinder, the outer surface of spiral cylinder is fixedly connected with pressing plate, the inner wall of pressing plate is fixedly connected with trigger button, the upper portion of pressing plate is provided with controller. The hydraulic buffering grading rebound safety auxiliary device, the spiral shaft of lower portion passes through spiral cylinder, at this time, pressing plate will rotate anticlockwise again ninety degrees, that is, the pressing of grading rebound hydraulic buffer body can be released, the rebound time of grading rebound hydraulic buffer body can be observed, effectively avoid equipment when using, without self-checking function, need to check periodically.

Description

Technical Field

[0001] This utility model belongs to the field of safety auxiliary device technology, and in particular relates to a hydraulic buffer graded rebound safety auxiliary device. Background Technology

[0002] Safety auxiliary devices are important facilities to ensure the operation of equipment and the safety of personnel. They can effectively reduce the risk of accidents. The graded rebound hydraulic buffer is a key component of this. In the field of elevator cars, it uses a multi-stage damping design to adjust the buffering force in stages when the car is impacted. It first gently decelerates and then increases the resistance to avoid violent vibration and secondary rebound. It accurately absorbs the impact energy and builds the last line of defense for the safe operation of elevators.

[0003] Currently, existing graded hydraulic dampers require staff to periodically climb into the elevator shaft to perform no-load rebound checks, which is quite inconvenient.

[0004] To address this issue, we propose a hydraulic buffer-stage rebound safety auxiliary device. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing graded hydraulic dampers do not have a no-load rebound self-check function and require regular inspection by staff, and to propose a hydraulic buffer graded rebound safety auxiliary device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A hydraulic buffer graded rebound safety auxiliary device includes a fixed base, and a self-testing mechanism is provided above the fixed base; The self-testing mechanism includes two first hydraulic rods, the outer surface of each first hydraulic rod being fixedly connected to the inner wall of the fixed base. The telescopic ends of the two first hydraulic rods are fixedly connected to a lifting plate. The inner wall of the lifting plate is rotatably connected to a spiral cylinder. The outer surface of the spiral cylinder is fixedly connected to a pressure plate. The inner wall of the pressure plate is fixedly connected to a trigger button. A controller is provided above the pressure plate. The inner wall of the fixed base is fixedly connected to a second hydraulic rod. The telescopic end of the second hydraulic rod is fixedly connected to a connecting shaft. The outer surface of the connecting shaft is fixedly connected to two spiral shafts.

[0007] Preferably, the inner wall of the fixing seat is threaded with two sets of bolts, and each set of bolts contains two bolts.

[0008] Preferably, the inner wall of the fixed base is fixedly connected to a graded rebound hydraulic buffer body, and the outer surface of the graded rebound hydraulic buffer body is in contact with the outer surface of the lifting plate.

[0009] Preferably, a limiting plate is fixedly connected to the upper surface of the lifting plate, and two bullseye bearings are fixedly connected to the inner wall of the limiting plate.

[0010] Preferably, a fixing ring is fixedly connected to the top end of the spiral cylinder, a rectangular chamber is fixedly connected to the outer surface of the fixing ring, and the bottom surface of the controller is fixedly connected to the inner bottom wall of the rectangular chamber.

[0011] Preferably, a battery compartment is fixedly connected to the inner wall of the rectangular compartment, and an alarm is fixedly connected to the upper surface of the rectangular compartment. The controller is electrically connected to the battery compartment, the alarm, the trigger button, the first hydraulic rod, and the second hydraulic rod via wires.

[0012] In summary, the technical effects and advantages of this utility model are as follows: By incorporating two hydraulic rods, the operation of the first hydraulic rods pushes the lifting plate upwards. When the lifting plate reaches above the body of the graded rebound hydraulic buffer, the second hydraulic rod is activated, pushing two spiral shafts upwards. When the first spiral shaft passes through the spiral cylinder, the spiral stripes fixed on the surface of the spiral shaft slide along the spiral grooves opened on the inner wall of the spiral cylinder. Therefore, the spiral cylinder rotates 90 degrees counterclockwise, causing the pressure plate to rotate to the top of the graded rebound hydraulic buffer body. Subsequently, the first and second hydraulic rods are synchronously reset, pulling the piston in the graded rebound hydraulic buffer body downwards to the bottom. Then, the second hydraulic rod is extended upwards, allowing the lower spiral shaft to pass through the spiral cylinder. At this point, the pressure plate rotates 90 degrees counterclockwise again, releasing the pressure on the graded rebound hydraulic buffer body. The rebound time of the graded rebound hydraulic buffer body can then be observed, effectively avoiding the problem of the equipment lacking self-checking function and requiring periodic inspections during use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the first hydraulic rod of this utility model; Figure 3 This is a three-dimensional structural schematic diagram of the second hydraulic rod of this utility model; Figure 4 This is a three-dimensional structural diagram of the controller of this utility model.

[0014] In the diagram: 1. Fixed base; 2. Self-testing mechanism; 201. First hydraulic rod; 202. Lifting plate; 203. Pressure plate; 204. Second hydraulic rod; 205. Trigger button; 206. Controller; 207. Spiral shaft; 208. Connecting shaft; 209. Spiral cylinder; 3. Bolt; 4. Limiting plate; 5. Bullseye bearing; 6. Staged rebound hydraulic buffer body; 7. Fixing ring; 8. Alarm; 9. Rectangular compartment; 10. Battery compartment. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-4 A hydraulic buffer graded rebound safety auxiliary device includes a fixed base 1, a self-inspection mechanism 2 is provided above the fixed base 1, and two sets of bolts 3 are threadedly connected to the inner wall of the fixed base 1. Each set of bolts 3 consists of two bolts. By providing the bolts 3, the device can be installed in a suitable working position.

[0017] The self-inspection mechanism 2 includes two first hydraulic rods 201. The outer surface of each first hydraulic rod 201 is fixedly connected to the inner wall of the fixed base 1. The telescopic ends of the two first hydraulic rods 201 are fixedly connected to the lifting plate 202. The inner wall of the fixed base 1 is fixedly connected to the graded rebound hydraulic buffer body 6. The outer surface of the graded rebound hydraulic buffer body 6 is in contact with the outer surface of the lifting plate 202. By setting the graded rebound hydraulic buffer body 6, safety protection can be provided for the elevator car.

[0018] A spiral cylinder 209 is rotatably connected to the inner wall of the lifting plate 202. A pressure plate 203 is fixedly connected to the outer surface of the spiral cylinder 209. A trigger button 205 is fixedly connected to the inner wall of the pressure plate 203. A controller 206 is provided above the pressure plate 203. A limit plate 4 is fixedly connected to the upper surface of the lifting plate 202. Two bullseye bearings 5 ​​are fixedly connected to the inner wall of the limit plate 4. By setting the limit plate 4, the pressure plate 203 can be limited, so that the pressure plate 203 has enough pressure to move downward. The bullseye bearings 5 ​​can ensure that the pressure plate 203 reduces the friction between the pressure plate 203 and the limit plate 4 when the pressure plate 203 rotates.

[0019] A second hydraulic rod 204 is fixedly connected to the inner wall of the fixed base 1. A connecting shaft 208 is fixedly connected to the telescopic end of the second hydraulic rod 204. A fixing ring 7 is fixedly connected to the top of the spiral cylinder 209. A rectangular chamber 9 is fixedly connected to the outer surface of the fixing ring 7. The bottom surface of the controller 206 is fixedly connected to the inner bottom wall of the rectangular chamber 9. By setting the fixing ring 7, a stable installation position can be provided for the rectangular chamber 9.

[0020] Two spiral shafts 207 are fixedly connected to the outer surface of the connecting shaft 208. A battery compartment 10 is fixedly connected to the inner wall of the rectangular compartment 9. An alarm 8 is fixedly connected to the upper surface of the rectangular compartment 9. The controller 206 is electrically connected to the battery compartment 10, the alarm 8, the trigger button 205, the first hydraulic rod 201, and the second hydraulic rod 204 via wires. By providing the battery compartment 10, power can be supplied to various electronic components.

[0021] The working principle of this utility model is as follows: When the graded rebound hydraulic buffer body 6 needs to be self-tested, the two first hydraulic rods 201 are controlled to run, pushing the lifting plate 202 to move upward. When the lifting plate 202 moves upward to the top of the graded rebound hydraulic buffer body 6, the second hydraulic rod 204 is controlled to run. The operation of the second hydraulic rod 204 will push the two spiral shafts 207 to move upward. When the first spiral shaft 207 passes through the spiral cylinder 209, the spiral stripes fixed on the surface of the spiral shaft 207 will slide along the spiral groove opened on the inner wall of the spiral cylinder 209. Therefore, the spiral cylinder 209 will rotate 90 degrees counterclockwise, which will drive the pressure plate 203 to rotate to the top of the graded rebound hydraulic buffer body 6. At this time, the other side of the pressure plate 203 is below the two bullseye bearings 5 ​​and in contact with the surface of the bullseye bearings 5. Furthermore, the trigger button 205 fixed on the inner wall of the lifting plate 202 is not in contact with the upper surface of the graded rebound hydraulic buffer body 6 and is in a state of waiting to be triggered. Then, the first hydraulic rod 201 and the second hydraulic rod 204 are controlled to reset synchronously, which pulls the piston in the graded rebound hydraulic buffer body 6 downward to the bottom. Then, the second hydraulic rod 204 is controlled to extend upward, so that the lower spiral shaft 207 passes through the spiral cylinder 209. At this time, the pressure plate 203 will rotate 90 degrees counterclockwise again, which releases the pressure on the graded rebound hydraulic buffer body 6. While the pressure plate 203 is rotating, the trigger button 205 fixed on the inner wall of the pressure plate 203 will contact the upper surface of the graded rebound hydraulic buffer body 6 and squeeze the trigger button 205 to retract, triggering the trigger button 205. At this time, the trigger button 205 will transmit an electrical signal to the controller 206 through the wire. The controller 206 will automatically time the event. At this time, the pressure plate 203 will not squeeze the graded rebound hydraulic buffer body 6, and the piston in the graded rebound hydraulic buffer body 6 will automatically rebound. Then, the controller 206 will again control the first hydraulic rod 201 and the second hydraulic rod 204 to move upward via an electrical signal. When the pressure plate 203 returns to above the graded rebound hydraulic buffer body 6, the second hydraulic rod 204 will pull the lowest spiral shaft 207 downward. Note that at this time, the second hydraulic rod 204 will not pull the lowest spiral shaft 207 completely through the spiral cylinder 209. Therefore, the spiral cylinder 209 can only rotate 45 degrees clockwise. At this time, the trigger button 205 is directly above the graded rebound hydraulic buffer body 6. When the graded rebound hydraulic buffer body 6 rebounds normally, the graded rebound hydraulic buffer body 6... The trigger button 205 will be pressed again. At this time, the controller 206 will stop the timer. Then the controller 206 will compare it with the pre-input normal rebound time range. If it is within the normal rebound range, the controller 206 will control the second hydraulic rod 204 and the first hydraulic rod 201 to reset in sequence. If it is not within the normal rebound range, the controller 206 will control the alarm 8 to run through the electrical signal and sound an alarm. The battery compartment 10 is equipped with a battery, which can supply power to various electronic components through the battery compartment 10 and the wires. The gap between the two spiral shafts 207 is greater than the height of the spiral cylinder 209, thereby achieving the purpose of automatic detection.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic buffer graded rebound safety auxiliary device, comprising a fixed base (1), characterized in that: A self-inspection mechanism (2) is provided above the fixed base (1); The self-testing mechanism (2) includes two first hydraulic rods (201). The outer surface of each first hydraulic rod (201) is fixedly connected to the inner wall of the fixed seat (1). The telescopic ends of the two first hydraulic rods (201) are fixedly connected to a lifting plate (202). The inner wall of the lifting plate (202) is rotatably connected to a spiral cylinder (209). The outer surface of the spiral cylinder (209) is fixedly connected to a pressure plate (203). The inner wall of the pressure plate (203) is fixedly connected to a trigger button (205). A controller (206) is provided above the pressure plate (203). The inner wall of the fixed seat (1) is fixedly connected to a second hydraulic rod (204). The telescopic end of the second hydraulic rod (204) is fixedly connected to a connecting shaft (208). The outer surface of the connecting shaft (208) is fixedly connected to two spiral shafts (207).

2. The hydraulic buffer graded rebound safety auxiliary device according to claim 1, characterized in that: The inner wall of the fixed seat (1) is threaded with two sets of bolts (3), and each set of bolts (3) consists of two bolts.

3. The hydraulic buffer graded rebound safety auxiliary device according to claim 1, characterized in that: The inner wall of the fixed base (1) is fixedly connected to the graded rebound hydraulic buffer body (6), and the outer surface of the graded rebound hydraulic buffer body (6) is in contact with the outer surface of the lifting plate (202).

4. The hydraulic buffer graded rebound safety auxiliary device according to claim 1, characterized in that: A limiting plate (4) is fixedly connected to the upper surface of the lifting plate (202), and two bullseye bearings (5) are fixedly connected to the inner wall of the limiting plate (4).

5. The hydraulic buffer graded rebound safety auxiliary device according to claim 1, characterized in that: The top end of the spiral cylinder (209) is fixedly connected to a fixing ring (7), and a rectangular chamber (9) is fixedly connected to the outer surface of the fixing ring (7). The bottom surface of the controller (206) is fixedly connected to the inner bottom wall of the rectangular chamber (9).

6. The hydraulic buffer graded rebound safety auxiliary device according to claim 5, characterized in that: The inner wall of the rectangular compartment (9) is fixedly connected to the battery compartment (10), and the upper surface of the rectangular compartment (9) is fixedly connected to the alarm (8). The controller (206) is electrically connected to the battery compartment (10), the alarm (8), the trigger button (205), the first hydraulic rod (201), and the second hydraulic rod (204) through wires respectively.

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