Buffer oil level sensor device

Abstract

The utility model discloses a buffer oil level sensor device, which relates to the field of elevator buffers, and comprises a buffer body and a connecting piece arranged on the left side of the buffer body, a pressure sensing end is arranged in the connecting piece, the outer side of the pressure sensing end is connected with a signal line, the upper end of the signal line is connected with a display panel, and the display panel is connected with the buffer body. The outer side of the buffer body is connected with the left side of the connecting piece in a welded mode, an oil level communicating opening is formed in the outer side of the buffer body, and the oil level communicating opening is located in the inner side of the connecting piece. According to the buffer oil level sensor device, the oil level can be determined by directly observing the display panel when the oil level is checked, whether hydraulic oil in a buffer oil cylinder meets the requirement or not can be found in time through the display panel, practicability is high, use is reliable, the working requirement for visually and rapidly checking the oil level is met, elevator maintenance efficiency is improved, and the service life of the elevator is prolonged. And the risk that the buffer fails due to lack of hydraulic oil is reduced, and the safety of passengers is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of elevator buffer technology, specifically a buffer oil level sensor device. Background Technology

[0002] Buffer oil level sensor devices are mainly used to monitor and measure the oil level to ensure that the device is within its normal operating range. These sensors are commonly used in automobiles, industrial machinery, and hydraulic systems.

[0003] The buffer, installed at the bottom of the elevator shaft, is an important elevator safety protection device. Its function is to absorb the impact energy of the car when it falls and hits the buffer, thus buffering the impact and ensuring the safety of passengers inside the elevator.

[0004] This involves a hydraulic damper, whose working medium is hydraulic oil. Its working principle is as follows: when the elevator car descends and impacts the damper, the damper's plunger moves downwards. The throttling control lever controls the flow of hydraulic oil through the damping orifice (throttling) to achieve uniform deceleration. As the plunger moves downwards, the annular gap between the throttling control lever and the damping orifice gradually decreases, resulting in a relatively constant braking force. The deceleration process ends near the end of the stroke. During the stopping of the car, its mechanical energy is converted into the heat energy of the oil, consuming the car's mechanical energy and thus bringing the car to a smooth stop.

[0005] Before operation, hydraulic oil needs to be injected into the cylinder of the hydraulic buffer. The amount of oil injected is critical. If too much oil is injected, it will cause oil leakage when the buffer is working. If too little oil is injected, the buffer will not play its buffering role. Therefore, an oil level checking device is required. However, when checking the working oil level inside the buffer, it is inconvenient for the staff to check the specific height of the oil level. Spot checks are inefficient, prone to errors, and result in high elevator maintenance costs. Utility Model Content

[0006] The purpose of this utility model is to provide a buffer oil level sensor device to solve the problems mentioned in the background art, which require hydraulic oil to be injected into the oil cylinder before the hydraulic buffer can work. The amount of oil injected is critical. If too much oil is injected, it will cause oil leakage when the buffer is working. If too little oil is injected, the buffer will not play a buffering role. It is also inconvenient for staff to check the specific oil level. The efficiency of spot checks is low, error is easy, and the maintenance cost of elevators is high.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a buffer oil level sensor device, comprising a buffer body and a connector mounted on the left side of the buffer body; the connector has a pressure-sensing end inside, and a signal line is connected to the outside of the pressure-sensing end, and a display panel is connected to the upper end of the signal line.

[0008] Furthermore, the outer side of the buffer body is welded to the left side of the connector, and an oil level connection port is provided on the outer side of the buffer body, which is located on the inner side of the connector. The internal substance of the buffer body is hydraulic oil.

[0009] Furthermore, the oil level connection port is correspondingly provided with the pressure sensing end, and an elastic sensing element is installed inside the pressure sensing end.

[0010] Furthermore, there are two connectors, with the right connector sleeved on the surface of the left connector, and the two connectors are connected by a threaded section, which is an M14 thread.

[0011] Furthermore, a sealing airbag is fixedly installed inside the connector, and the sealing airbag is circular in shape, with the inner side of the sealing airbag corresponding to the surface of the pressure-sensing end.

[0012] Furthermore, an inflatable airbag is fixedly installed on the right end of the connector, and the inflatable airbag is circular in shape. The inflatable airbag is sleeved on the outside of the signal line, and the connector on the right side and the inflatable airbag form a compression structure.

[0013] Furthermore, the inflatable airbag is made of an elastic material, and the inflatable airbag is connected to the airbag via an air delivery conduit.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When checking the oil level, the oil level can be determined directly by observing the display panel. The display panel allows for timely detection of whether the hydraulic oil inside the buffer cylinder meets the requirements. It is highly practical and reliable, meeting the work requirements for quick visual inspection of the oil level, improving the efficiency of elevator maintenance, reducing the risk of buffer failure due to insufficient hydraulic oil, and ensuring passenger safety.

[0016] 2. When the pressure-sensing end is installed inside the connector, the installation of the left and right connectors can compress the inflatable air bladder, so that the inner sealing air bladder seals the pressure-sensing end and the connector, which improves the stability of the device and has a high-efficiency sealing effect, prevents hydraulic oil leakage, and avoids waste of resources. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the display panel of this utility model.

[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of the connector of this utility model.

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] Figure 5 This is a cross-sectional three-dimensional structural diagram of the pressure-sensing end of this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the connector and pressure-sensing end of this utility model.

[0023] Figure 7 This is a schematic diagram of the connection structure of the left and right connecting parts of this utility model.

[0024] In the diagram: 1. Buffer body; 2. Connector; 3. Pressure sensing end; 4. Signal line; 5. Display panel; 6. Elastic sensing element; 7. Threaded section; 8. Sealing airbag; 9. Air supply pipe; 10. Inflatable airbag; 11. Oil level connection port. Detailed Implementation

[0025] 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.

[0026] Example 1: As Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 The technical solution shown is a buffer oil level sensor device. To solve the problem of inconvenient observation of hydraulic oil addition, it discloses: a buffer body 1 and a connector 2 installed on the left side of the buffer body 1; the connector 2 has a pressure-sensing end 3 inside, and a signal line 4 is connected to the outside of the pressure-sensing end 3, and a display panel 5 is connected to the upper end of the signal line 4; the outside of the buffer body 1 is welded to the left side of the connector 2, and an oil level connection port 11 is opened on the outside of the buffer body 1, and the oil level connection port 11 is located inside the connector 2; the internal material of the buffer body 1 is hydraulic oil; the oil level connection port 11 is correspondingly set with the pressure-sensing end 3; and an elastic sensing element 6 is installed inside the pressure-sensing end 3; there are two connectors 2, and the right connector 2 is sleeved on the surface of the left connector 2, and the two connectors 2 are connected by a threaded section 7, and the threaded section 7 is an M14 thread.

[0027] First, weld the left end of the left connector 2 to the oil level connection port 11 of the oil cylinder of the buffer body 1. Then, embed the pressure sensing end 3 into the inside of the left connector 2. At this time, connect the right connector 2, which is sleeved on the signal line 4, to the left connector 2 through the threaded section 7. At this time, the pressure-sensing end 3 inside the connector 2 is connected to the oil cylinder of the buffer body 1 through the oil level connection port 11. Through the oil level connection port 11, the head of the pressure-sensing end 3 can directly contact the hydraulic oil. When the oil level in the oil cylinder is increased to the pressure-sensing end 3, the elastic sensing element 6 inside the pressure-sensing end 3 senses the pressure of the hydraulic oil in the oil cylinder. The higher the oil level, the greater the pressure. When the oil level is insufficient, there is no pressure. The pressure-sensing end 3 transmits the sensed pressure to the processor in the display panel 5 through the signal line 4. Finally, the result is reflected on the display panel 5. This can directly reflect the oil level inside the buffer, allowing the staff to accurately read the data and choose whether to continue adding hydraulic oil. This meets the work requirements of visually and quickly checking the oil level, improves the efficiency of elevator maintenance, reduces the risk of the buffer failing due to insufficient hydraulic oil, and ensures the safety of passengers.

[0028] Example 2: Figure 1 , Figure 3 and Figure 4 The technical solution shown, based on Embodiment 1, discloses the following to address the issue of easy hydraulic oil leakage: a sealing airbag 8 is fixedly installed inside the connector 2, and the sealing airbag 8 is circular in shape. The inner side of the sealing airbag 8 corresponds to the surface of the pressure-sensing end 3. An inflatable airbag 10 is fixedly installed at the right end of the connector 2, and the inflatable airbag 10 is circular in shape. The inflatable airbag 10 is sleeved on the outside of the signal line 4, and the right connector 2 and the inflatable airbag 10 form a compression structure. The material of the inflatable airbag 10 is elastically designed, and the inflatable airbag 10 is connected to the inflatable airbag 10 through the air supply conduit 9.

[0029] When the right connector 2 and the left connector 2 are installed through the threaded section 7, the right connector 2 moves to the left to press the inflatable airbag 10. The inflatable airbag 10 is pressed and the air inside is delivered to the sealing airbag 8 through the air supply pipe 9. At this time, the sealing airbag 8 expands and fits against the pressure-sensing end 3, which makes the sealing effect between the pressure-sensing end 3 and the connector 2 better. At the same time, it clamps the pressure-sensing end 3 to prevent it from shaking, which improves the stability of the device and has a high-efficiency sealing effect, prevents hydraulic oil leakage, and avoids waste of resources. When the right connector 2 is removed, the inflatable airbag 10 resets by its own elasticity, draws back the gas inside the sealing airbag 8 through the air supply pipe 9, and stops contact with the pressure-sensing end 3.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buffer oil level sensor device, comprising a buffer body (1) and a connector (2) mounted on the left side of the buffer body (1); characterized in that The inside of the connector (2) is provided with a pressure sensing end (3), the outside of the pressure sensing end (3) is connected with a signal line (4), and the upper end of the signal line (4) is connected with a display panel (5).

2. A shock absorber oil level sensor device according to claim 1, characterized in that: The outside of the buffer body (1) is connected with the left side of the connector (2) by welding, the outside of the buffer body (1) is provided with an oil level access port (11), and the oil level access port (11) is located on the inside of the connector (2), and the inside of the buffer body (1) is filled with hydraulic oil.

3. A shock absorber oil level sensor device according to claim 2, characterized in that: The oil level access port (11) is correspondingly arranged with the pressure sensing end (3), and the inside of the pressure sensing end (3) is provided with an elastic sensing element (6).

4. A shock absorber oil level sensor device according to claim 1, characterized in that: The number of the connector (2) is two, the right connector (2) is sleeved on the surface of the left connector (2), and the left and right connectors (2) are connected through a threaded interval (7), and the threaded interval (7) is M14 thread.

5. A shock absorber oil level sensor device according to claim 1, characterized in that: The inside of the connector (2) is fixedly provided with a sealing air bag (8), the shape of the sealing air bag (8) is circular, and the inside of the sealing air bag (8) is correspondingly arranged with the surface of the pressure sensing end (3).

6. A shock absorber oil level sensor device according to claim 5, characterized in that: The right end of the connector (2) is fixedly provided with an inflatable air bag (10), the shape of the inflatable air bag (10) is circular, the inflatable air bag (10) is sleeved on the outside of the signal line (4), and the right connector (2) and the inflatable air bag (10) form a press-fit structure.

7. A shock absorber oil level sensor device according to claim 6, characterized in that: The material of the inflatable air bag (10) is elastically arranged, and the inflatable air bag (10) is communicated with the inflatable air bag (10) through a gas conveying pipe (9).

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