Safety belt for preventing low hanging and high hanging by utilizing liquid level height difference principle
The detection device based on the principle of liquid level difference promptly corrects the safety belt attachment point, solving the fall risk caused by "low attachment and high use" in high-altitude operations, and improving the safety and accuracy of safety belt use.
Patent Information
- Application Number
- CN202520228115.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-13
AI Technical Summary
During the use of existing safety belts for high-altitude operations, operators often neglect the safety belt attachment points, resulting in "low attachment and high use," which increases the fall distance and the risk of personal injury.
The detection device, which uses the principle of liquid level difference, detects the height difference between the two ends of the safety rope. It generates a current by utilizing the liquid level difference between the conductive liquid metal and the metal electrode, triggering an alarm device to promptly notify construction management personnel to correct the safety belt attachment point. This device includes the coordinated use of power supply components, alarm devices, and vibration sensors.
It effectively reduces the probability of seat belts being "low-mounted and high-used," improves the safety and accuracy of seat belt use, extends the service life of equipment, and reduces the risk of personal injury.
Smart Images
Figure CN223887263U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction, and in particular to a safety belt that uses the principle of liquid level difference to prevent low-hanging safety belts from being used at high positions. Background Technology
[0002] In many high-risk fields such as construction, railway, and power construction, working at height is a very common but also very risky job. Workers often need to operate at heights of several meters or even tens of meters above the ground. A slight mistake can lead to a fall, which poses a serious threat to their lives. As a crucial piece of personal protective equipment, safety belts can provide the most direct and effective fall protection for workers at height. When using a safety belt normally, the safety rope is hung high up while the worker works at a low position. This is called "high-hanging, low-using" of the safety belt, which can reduce the fall distance and the degree of injury.
[0003] The main body of most safety belts used for high-altitude operations is composed of a flat, wide strip of rope. This design not only enhances its load-bearing capacity and durability but also ensures stability when worn. The safety belt is worn directly on the worker's body, with the buckle attached to the corresponding anchor point. The safety belt is adjusted using an adjustment device to ensure a tight fit to the body, providing a solid and reliable safety guarantee for workers at heights.
[0004] Regarding the aforementioned technologies, in practical engineering applications, workers often neglect the safety belt attachment points. For example, when moving to a new location at a higher elevation, they forget to move the safety belt attachment points, resulting in the safety belt being attached too low. This is commonly referred to as "low attachment, high use" of the safety belt. If the operator accidentally falls, the increased fall distance makes the operator more susceptible to serious personal injury. Utility Model Content
[0005] To improve the safety of seat belt use, this application provides a seat belt that uses the principle of liquid level difference to prevent low-hanging high-hanging seat belts.
[0006] This application provides a technical solution for preventing low-profile, high-profile safety belts from being snagged by liquid level differences, using the following technical solution:
[0007] A safety harness and rope that utilizes the principle of liquid level difference to prevent low-to-high hanging is provided. One end of the safety rope has a safety harness, and the other end has a suspension part for attachment. The safety rope contains a detection device to detect the height difference between its two ends. An alarm device is located on the side of the safety rope near the suspension part. When the detection device detects that the end of the safety rope connected to the safety harness is higher than the end connected to the suspension part, the alarm device is triggered and an alarm signal is promptly sent to the construction management personnel, who then urge the relevant workers to correct the situation. A power supply component is located on the side of the safety rope near the suspension part to provide power to the detection device and the alarm device.
[0008] By adopting the above technical solution, the operator wears the safety belt and attaches one end of the safety rope to the safety belt, while the other end of the safety rope is attached to the suspension unit. When the operator is working, the detection device detects the height difference between the two ends of the safety rope. When the height of the end of the safety rope connected to the suspension unit is lower than the height of the end of the safety rope connected to the safety belt, it indicates that the safety belt is in a "low-attachment, high-use" state. The power supply component provides power to the detection device, which triggers the alarm device to promptly send the alarm signal to the construction management personnel. The construction management personnel then urge the relevant workers to correct and improve the situation in a timely manner, thereby reducing the probability of the safety belt being "low-attached, high-use" and improving the safety of safety belt use.
[0009] Optionally, the detection device includes a first metal electrode, a second metal electrode, and a conductive liquid metal. A cavity is provided inside the safety rope. The first metal electrode is located inside the cavity at the end closest to the safety belt, and the second metal electrode is located inside the cavity at the end furthest from the first metal electrode. A power supply component supplies power to the detection device, and the second metal electrode is electrically connected to the power supply component. The conductive liquid metal is located inside the cavity and is always in contact with the first metal electrode. When the height of the first metal electrode is lower than or equal to that of the second metal electrode, the conductive liquid metal and the second metal electrode do not contact each other. When the height of the first metal electrode is higher than that of the second metal electrode, due to the difference in liquid level, the inert gas is compressed, and the conductive liquid metal comes into contact with the second metal electrode, generating a current between the first and second metal electrodes and triggering an alarm device.
[0010] By adopting the above technical solution, when the safety belt is in the normal use state of "high hanging and low use" or in an unused state, the conductive liquid metal is in contact with metal electrode one but not with metal electrode two. At this time, no current is generated in the circuit. When the safety belt is in the "low hanging and high use" state, both metal electrode one and metal electrode two are in contact with the conductive liquid metal. The power supply component supplies power to the detection device and alarm device. When the detection device forms a closed circuit, it generates current. The current triggers the alarm device, which promptly reports to the construction management personnel. The construction management personnel then urge the relevant workers to correct and improve the situation in a timely manner, reducing the probability of serious personal injury in the event of an accident.
[0011] Optionally, both ends of the cavity are filled with inert gas (141), and the metal electrode one (111) is partially located in the corresponding inert gas (141). When the height of the metal electrode one (111) is lower than or equal to that of the metal electrode two (112), the metal electrode two (112) is entirely located in the corresponding inert gas (141). When the height of the metal electrode one (111) is higher than that of the metal electrode two (112), the metal electrode two (112) is partially located in the conductive liquid metal.
[0012] By adopting the above technical solution, the inert gas at both ends of the cavity is compressible, and the inert gas does not undergo physical and chemical reactions with the conductive liquid metal, thereby improving the stability of the detection device.
[0013] Optionally, a sealing layer is provided inside the cavity to reduce the probability of leakage of conductive liquid metal and inert gas inside the cavity.
[0014] By adopting the above technical solution, the sealing layer reduces the probability of leakage of conductive liquid metal and inert gas, thereby ensuring the long-term stable operation of the detection device and improving the durability of the seat belt.
[0015] Optionally, the alarm device (12) includes a current sensor (121), a vibration sensor (122), and an alarm (123). The current sensor (121), vibration sensor (122), and alarm (123) are all fixed to one end of the safety rope (1) near the suspension part (3). The vibration sensor is located between the current sensor and the alarm. The vibration sensor (122) is electrically connected to the current sensor (121) and the alarm (123). When the guide circuit is connected and generates current, the current sensor (121) is triggered and sends an electrical signal to the vibration sensor (122). After receiving the signal, the vibration sensor (122) starts and continuously detects the vibration of the safety rope (1) according to the preset frequency. When the safety rope (1) vibrates, the vibration sensor (122) is triggered and drives the alarm (123) to sound an alarm.
[0016] By adopting the above technical solution, when the safety belt is in a "low-hanging, high-use" operating state, the detection device forms a circuit to generate current. After the current sensor detects the current, it transmits the signal to the vibration sensor. The vibration sensor continuously detects the vibration of the safety rope according to a preset frequency. When the safety rope continues to vibrate, the vibration sensor sends a signal to the alarm and triggers the alarm, reducing the probability of false detection of the safety belt's usage and improving the accuracy of the safety belt detection. The alarm signal is promptly reported to the construction management personnel, who then urge the relevant workers to correct and improve the situation in a timely manner, thereby improving the stability of the safety belt's use.
[0017] Optionally, the power supply components include a battery and a solar panel. The solar panel is fixed to one end of the safety rope near the suspension point and is arranged circumferentially along the safety rope. The battery is fixed inside the solar panel and is used to store the electrical energy converted by the solar panel. The battery, current sensor and metal electrode two are electrically connected.
[0018] By adopting the above technical solution, the solar panel converts solar energy into electrical energy, enabling the seat belt to work stably even without an external power source. The battery stores the electrical energy generated by the solar panel, allowing the battery to provide power to the detection and alarm devices in a timely manner, thus improving the convenience of using the seat belt.
[0019] Optionally, a protective cavity is provided on the side of the safety rope near the suspension point. The protective cavity contains cushioning material, and the battery, vibration sensor, and alarm device are all located inside the cushioning material.
[0020] By adopting the above technical solution, the buffer material absorbs the force applied by the outside, reducing the damage to the battery, vibration sensor and alarm device caused by impact, while reducing the probability of moisture and other harmful substances entering, thus extending the overall life of the equipment.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. When the height of the safety rope connection suspension end is lower than the height of the safety rope connection safety belt end, it indicates that the safety belt is in a "low-hanging, high-use" state. The power supply component provides power to the detection device, which triggers the alarm device to promptly send the alarm signal to the construction management personnel. The construction management personnel then urge the relevant workers to correct and improve the situation in a timely manner, thereby reducing the probability of the safety belt being "low-hanging, high-use" and improving the safety of the safety belt.
[0023] 2. When the safety rope continuously vibrates, the vibration sensor sends a signal to the alarm and triggers the alarm, reducing the probability of false detection of the safety belt's condition and improving the accuracy of safety belt detection;
[0024] 3. The cushioning material absorbs the force applied by the outside world, reducing the damage to the battery, vibration sensor and alarm device caused by impact, while reducing the probability of moisture and other harmful substances entering, thus extending the overall life of the equipment. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of a safety belt that uses the principle of liquid level difference to prevent low-hanging high-hanging safety belts.
[0026] Figure 2 This is a schematic diagram designed to highlight the metal electrode connection structure.
[0027] Figure 3 This is a schematic diagram designed to highlight the two-connection structure of the metal electrodes.
[0028] Figure 4 This is a schematic diagram designed to highlight the battery connection structure.
[0029] Figure 5 This is a schematic diagram designed to highlight the connection structure of the current sensor.
[0030] Explanation of reference numerals in the attached drawings: 1. Safety rope; 11. Detection device; 111. Metal electrode one; 112. Metal electrode two; 113. Conductive liquid metal; 12. Alarm device; 121. Current sensor; 122. Vibration sensor; 123. Alarm; 13. Power supply assembly; 131. Solar panel; 132. Battery; 14. Sealing layer; 141. Inert gas; 15. Tension rope; 16. Protective cavity; 161. Cushioning material; 2. Safety belt; 3. Suspension part. Detailed Implementation
[0031] The present application will be further described in detail below with reference to all the accompanying drawings.
[0032] This application discloses a method for preventing low-hanging, high-hanging safety belts by utilizing the principle of liquid level difference. Example
[0033] Reference Figure 1 A safety harness that uses the principle of liquid level difference to prevent low-level hanging from high-level objects includes a safety rope 1. One end of the safety rope 1 is equipped with a safety belt 2, and the other end is equipped with a suspension part 3 for attachment. When the operator uses it, the safety belt 2 is worn on the body, one end of the safety rope 1 is attached to the safety belt 2, and the other end is attached to the suspension part 3. The safety rope 1 includes a tension rope 15. When the safety belt 2 is in use, the safety rope 1 is stressed through the tension rope 15 located inside. The tension rope 15 is located at the center of both ends of the safety rope 1 and is stressed in the center. A cavity is opened in the middle of the safety rope 1, and the tension rope 15 is stressed in the outer annular area.
[0034] Reference Figure 2 and Figure 3 The cavity is equipped with a detection device 11, which includes a first metal electrode 111, a second metal electrode 112, and a conductive liquid metal 113. The first metal electrode 111 is located in the cavity near the end of the safety belt 2, and the second metal electrode 112 is located in the cavity near the end of the suspension part 3. The safety rope 1 is equipped with a power supply component 13 on the side near the suspension part 3. The conductive liquid metal 113 is located in the cavity and is always in contact with the first metal electrode 111.
[0035] Reference Figure 2 and Figure 3When the safety belt 2 is in normal use or not in use, the height of metal electrode 111 is lower than or equal to that of metal electrode 112. A height difference in the conductive liquid metal 113 will be generated. The pressure difference caused by this height difference will push the conductive liquid metal 113 towards both ends of the safety rope 1, making the liquid levels more even. At this time, the conductive liquid metal 113 and metal electrode 112 are not in contact, and no current is generated in the cavity. When the safety belt 2 is in a "low-attached, high-use" operating state, the height of metal electrode 111 is higher than that of metal electrode 112. At this time, the height difference in the liquid level... The pressure difference generated pushes the conductive liquid metal 113 to flow towards the metal electrode 112, and then the conductive liquid metal 113 comes into contact with the metal electrode 112. The power supply component 13 supplies power to the detection device 11, so that the detection device 11 forms a circuit. The circuit generates current. An alarm device 12 is provided on the side of the safety rope 1 near the suspension part 3. The current triggers the alarm device 12, and the alarm device 12 is activated to promptly send the alarm signal to the construction management personnel. The construction management personnel urge the relevant workers to correct and improve in a timely manner to reduce the probability of serious personal injury in the event of an accident.
[0036] Reference Figure 2 and Figure 3 Both ends of the cavity are filled with inert gas 141. The inert gas 141 is compressible. When the seat belt 2 is used, the conductive liquid metal 113 will compress the inert gas 141, and the inert gas 141 does not react with the conductive liquid metal 113, thus improving the stability of the detection device 11. The metal electrode 111 is partially located within the corresponding inert gas 141. When the seat belt 2 is in the normal use state of "high attachment, low use" or in the unused state, the metal electrode 112 is entirely located within the corresponding inert gas 141.
[0037] Reference Figure 2 and Figure 3 When the seat belt 2 is in the "low-mounted, high-use" operating state, the pressure difference generated by the conductive liquid metal 113 compresses the inert gas 141, causing part of the metal electrode 112 to be located within the corresponding inert gas 141, and the other part to be located within the conductive liquid metal 113. At this time, the circuit is closed and current is generated, improving the accuracy of the use of the seat belt 2. A sealing layer 14 is provided inside the cavity, which reduces the probability of leakage of the conductive liquid metal 113 and inert gas 141 from the cavity, thereby ensuring the long-term stable operation of the detection device 11 and improving the stability of the use of the seat belt 2.
[0038] Reference Figure 3 and Figure 4The power supply component 13 includes a battery 132 and a solar panel 131. The solar panel 131 is fixed to one end of the safety rope 1 near the suspension part 3. The solar panel 131 converts solar energy into electrical energy and stores it in the battery 132, enabling the safety belt 2 to work stably even without an external power source. The solar panel 131 is arranged circumferentially along the safety rope 1 to maximize solar energy absorption and improve energy conversion efficiency. The battery 132 is fixed inside the solar panel 131 and stores the electrical energy generated by the solar panel 131. The battery 132, current sensor 121, and metal electrode 112 are electrically connected, facilitating timely power supply to the detection device 11 and alarm device 12, thus improving the ease of use of the safety belt 2.
[0039] Reference Figure 3 and Figure 4 The safety rope 1 also includes a mounting ring near one end of the suspension part 3. The mounting ring has a protective cavity 16, and a cushioning material 161 is provided inside the protective cavity 16. The cushioning material 161 has a certain degree of softness and plasticity. The battery 132 and the alarm device 12 are both located inside the cushioning material 161. The cushioning material 161 absorbs the force applied by the outside and supports the battery 132 and the alarm device 12, reducing the damage to the battery 132 and the alarm device 12 due to impact. At the same time, it reduces the probability of moisture and other harmful substances entering, thus extending the overall life of the equipment.
[0040] Reference Figure 5 The alarm device 12 includes a current sensor 121, a vibration sensor 122, and an alarm 123. The current sensor 121, vibration sensor 122, and alarm 123 are all fixed in the protective cavity 16. The metal electrode 111, the current sensor 121, the vibration sensor 122, and the alarm 123 are electrically connected. When the safety belt 2 is in the "low-hanging, high-use" usage state, the detection device 11 forms a circuit to generate current. After the current sensor 121 detects the current, it transmits the signal to the vibration sensor 122. After receiving the signal, the vibration sensor 122 starts and continuously detects the vibration of the safety rope 1 according to a preset frequency. In this embodiment, a frequency of once every 5 minutes is selected as an example for explanation, which reduces the probability of false detection of the use of the safety belt 2 and improves the accuracy of the detection of the safety belt 2. When the vibration sensor 122 detects that the safety rope 1 is continuously vibrating, the vibration sensor 122 sends a signal to the alarm 123 and triggers the alarm 123. The alarm 123 then sends the signal to the management personnel, who will then urge the relevant operators to correct the use of the safety belt 2 in a timely manner, thereby reducing the probability of personal injury during operation and improving the safety of the use of the safety belt 2.
[0041] The implementation principle of this application embodiment for preventing low-hanging, high-use safety belts using the principle of liquid level difference is as follows: When the safety belt 2 is in normal use or not in use, the conductive liquid metal 113 only contacts the first metal electrode 111 and not the second metal electrode 112. At this time, the alarm device 12 will not be triggered. When the safety belt 2 is in the "low-hanging, high-use" state, the conductive liquid metal 113 generates a liquid level difference. The pressure difference generated by this liquid level difference will push the conductive liquid metal 113 to flow towards a more uniform liquid level at both ends of the safety rope 1. At this time, both the first metal electrode 111 and the second metal electrode 112 are in contact with the conductive liquid metal 113. 132 provides electrical energy to the metal electrode 112, enabling the detection device 11 to form a circuit and generate current in the cavity. After the current sensor 121 detects the current, it transmits the signal to the vibration sensor 122. After receiving the signal, the vibration sensor 122 starts and continuously detects the vibration of the safety rope 1 at a frequency of once every five minutes. When the vibration sensor 122 detects that the safety rope 1 is continuously vibrating, the vibration sensor 122 sends a signal to the alarm 123 and triggers the alarm. The alarm 123 sends the signal to the management personnel, who then urge the relevant operators to correct the use of the safety belt 2 in a timely manner to improve the safety of the use of the safety belt 2.
[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A safety belt that uses the principle of liquid level difference to prevent low-level hanging from high-level objects, comprising a safety rope (1), one end of the safety rope (1) being provided with a safety belt (2), and the other end being provided with a suspension part (3) for hooking, characterized in that: The safety rope (1) is equipped with a detection device (11) inside. The detection device (11) is used to detect the height difference between the two ends of the safety rope (1). An alarm device (12) is provided on the side of the safety rope (1) near the suspension part (3). When the detection device (11) detects that the end of the safety rope (1) connected to the safety belt (2) is higher than the end connected to the suspension part (3), the alarm device (12) is triggered and the alarm signal is promptly sent to the construction management personnel, who then urge the relevant workers to correct and improve the situation in a timely manner. A power supply component (13) is provided on the side of the safety rope (1) near the suspension part (3). The power supply component (13) is used to provide power to the detection device (11) and the alarm device (12).
2. A safety belt for preventing low-slung hanging from high-slung objects using the principle of liquid level difference as described in claim 1, characterized in that: The detection device (11) includes a first metal electrode (111), a second metal electrode (112), and a conductive liquid metal (113). A cavity is provided inside the safety rope (1). The first metal electrode (111) is located inside the cavity at one end near the safety belt (2), and the second metal electrode (112) is located inside the cavity at the other end away from the first metal electrode (111). A power supply assembly (13) supplies power to the detection device (11), and the second metal electrode (112) is electrically connected to the power supply assembly (13). The conductive liquid metal (113) is located inside the cavity. The conductive liquid metal (113) is always in contact with the first metal electrode (111). When the height of the first metal electrode (111) is lower than or equal to that of the second metal electrode (112), the conductive liquid metal (113) does not contact the second metal electrode (112). When the height of the first metal electrode (111) is higher than that of the second metal electrode (112), due to the formation of a liquid level difference, the inert gas (141) is compressed and the conductive liquid metal (113) contacts the second metal electrode (112), causing a current to be generated between the first metal electrode (111) and the second metal electrode (112) and triggering the alarm device (12).
3. A safety belt for preventing low-slung hanging from high-slung objects using the principle of liquid level difference as described in claim 2, characterized in that: Both ends of the cavity are filled with inert gas (141). Metal electrode one (111) is partially located in the corresponding inert gas (141). When the height of metal electrode one (111) is lower than or equal to that of metal electrode two (112), metal electrode two (112) is entirely located in the corresponding inert gas (141). When the height of metal electrode one (111) is higher than that of metal electrode two (112), metal electrode two (112) is partially located in conductive liquid metal (113).
4. A safety belt for preventing low-slung hanging from high-slung objects using the principle of liquid level difference as described in claim 3, characterized in that: The cavity is provided with a sealing layer (14) to reduce the probability of leakage of conductive liquid metal (113) and inert gas (141) inside the cavity.
5. A safety belt for preventing low-slung hanging from high-slung objects using the principle of liquid level difference as described in claim 2, characterized in that: The alarm device (12) includes a current sensor (121), a vibration sensor (122), and an alarm (123). The current sensor (121), vibration sensor (122), and alarm (123) are all fixed to one end of the safety rope (1) near the suspension part (3). The vibration sensor (122) is located between the current sensor (121) and the alarm (123). The vibration sensor (122) is electrically connected to the current sensor (121) and the alarm (123). When the guide circuit is connected and generates current, the current sensor (121) is triggered and sends an electrical signal to the vibration sensor (122). After receiving the signal, the vibration sensor (122) starts and continuously detects the vibration of the safety rope (1) according to a preset frequency. When the safety rope (1) vibrates, the vibration sensor (122) is triggered and drives the alarm (123) to sound an alarm.
6. A safety belt for preventing low-slung hanging from high-slung objects using the principle of liquid level difference as described in claim 5, characterized in that: The power supply component (13) includes a battery (132) and a solar panel (131). The solar panel (131) is fixed to one end of the safety rope (1) near the suspension part (3) and is arranged circumferentially along the safety rope (1). The battery (132) is fixed inside the solar panel (131) and is used to store the electrical energy converted by the solar panel (131). The battery (132), current sensor (121) and metal electrode two (112) are electrically connected.
7. A safety belt for preventing low-slung suspension from high-slung suspension using the principle of liquid level difference as described in claim 6, characterized in that: The safety rope (1) has a protective cavity (16) on the side near the suspension part (3). The protective cavity (16) is provided with a cushioning material (161). The battery (132), vibration sensor (122) and alarm device (12) are all located in the cushioning material (161).