Pyroelectric personnel monitoring alarm locking device
By designing a monitoring and alarm locking device for pyroelectric personnel in the auxiliary well lifting system, and automatically controlling the rocker and safety door with the pyroelectric detection switch and detection relay, the safety hazards that hookers and can crews may be injured during operation are solved, achieving dual safety guarantees and safety reliability of the vehicle handling system.
Patent Information
- Application Number
- CN202421653074.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In the auxiliary well lifting system, communication between the hooker and the signal operator is easily restricted by the working environment, resulting in untimely and unblocked, and there are safety hazards, especially when the rocker is raised or the safety door is closed, it may cause harm to the hooker and the canister.
Design a pyroelectric personnel monitoring and alarm locking device, including a pyroelectric detection switch, detection relay, acoustic and light alarm light, a rocker and safety door operating system. The pyroelectric detection switch is located outside the tank cage. When there are personnel in the sensing range, the detection relay processes the signal and controls the rocker and safety door operating system to avoid dangerous operations when the personnel are present.
Through the coordination of the pyroelectric detection switch and the detection relay, automatic control of the operation of the rocker and safety door is achieved, dangerous operations are eliminated when personnel exist, safety and reliability of the driving system is improved, and dual safety guarantees are formed.
Smart Images
Figure CN222833825U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of safety and protection equipment, in particular to a personnel monitoring alarm locking device based on pyroelectric technology. Background Art
[0002] When personnel are being lifted up or down in the auxiliary shaft hoisting system, the hookman needs to remove the tank chain on the cradle or the second-floor platform, while the signal operator operates the lifting and lowering of the cradle and the opening and closing of the safety door in the signal room. Communication between the hookman and the signal operator is the key to safe operations in an industrial environment. However, in actual work, communication between the hookman and the signal operator is often restricted by the working environment, resulting in untimely and unsmooth communication.
[0003] The signal operator has a blind spot in his vision. He cannot see the hookman who is performing the operation and the tank passengers who are entering or exiting the cage. If the signal operator receives an incorrect signal or has a poor grasp of timing during the communication with the hookman, and when operating the raising and lowering of the cradle and the opening and closing of the safety door, if the hookman is removing the tank chain and fails to leave the cradle in time, or the tank passengers are entering or exiting the cage, it is very likely to cause injury to the hookman and the tank passengers, posing a great safety hazard. Summary of the invention
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and propose a pyroelectric personnel monitoring alarm locking device, which can eliminate the hidden dangers of possible injuries to the hook workers and tank passengers caused by the lifting of the cradle or the closing of the safety door, achieve double safety protection, and improve the safety and reliability of the vehicle operating system.
[0005] In order to achieve the above objectives, the utility model proposes the following technical solutions:
[0006] A pyroelectric personnel monitoring alarm locking device comprises a pyroelectric detection switch, a detection relay, an audible and visual alarm lamp, a shaking table and a safety door operating system.
[0007] The sound and light alarm lamp is placed in the sound and light alarm operation loop, and the sound and light alarm lamp is arranged in the signal room, close to the position of the signalman, so as to prompt the signalman conveniently.
[0008] The cradle and safety door operating system realizes the control of the cradle and the safety door through the cradle safety door operating loop.
[0009] The pyroelectric detection switch is arranged on the outside of the tank cage, and its sensing range is outside the tank cage, on the cradle and near the safety door. It monitors whether there are traces of people within the sensing range, and the pyroelectric detection switch is electrically connected to the detection relay; when there are traces of people within the sensing range of the pyroelectric detection switch, the pyroelectric detection switch will send an electrical signal to the detection relay, and the detection relay will process the electrical signal and drive the normally closed node and the normally open node of the detection relay to act at the same time, the normally closed node is disconnected, and the normally open node is closed; when the person leaves the sensing range for a period of time, that is, when the pyroelectric detection switch cannot detect traces of people within the sensing range for a period of time, the pyroelectric detection switch will not send an electrical signal to the detection relay, and the detection relay will return to normal, that is, the normally closed node is closed, and the normally open node is disconnected.
[0010] The normally open node of the detection relay is connected in series to the sound and light alarm operation circuit, and the normally closed node of the detection relay is connected in series to the cradle safety door operation circuit.
[0011] When the detection relay does not receive the electrical signal sent by the pyroelectric detection switch, the normally closed node and the normally open node are in a normal state. When the detection relay receives the electrical signal sent by the pyroelectric detection switch, the normally closed node is disconnected and the normally open node is closed.
[0012] Preferably, there are more than two pyroelectric detection switches, which are arranged on both sides outside the tank cage. The personnel sensing range covers the periphery of the tank cage. The pyroelectric detection switches are connected in parallel to the detection relay. As long as one pyroelectric detection switch detects that there is someone in the sensing range and sends an electrical signal to the detection relay, the normally closed node and the normally open node of the detection relay will act at the same time, thereby enhancing safety and reliability.
[0013] A pyroelectric detection switch, also known as a pyroelectric infrared sensor, is a sensor that can detect infrared rays emitted by the human body and convert them into electrical signals. This sensor is widely used in various automatic sensing devices, such as automatic door openers, security systems, etc. It is a common tool for technicians in this field. The connection and use of a pyroelectric detection switch and a detection relay are already in the prior art.
[0014] Specifically, in the initial state, the shaking platform is flat, the safety door is closed, there is no one in the tank cage and the tank chain is hung. At this time, the tank cage is in standby state. At this time, the hook worker is in a safe position outside the tank cage, that is, it is not within the sensing range of the pyroelectric detection switch. At this time, the pyroelectric detection switch continues to monitor that there is no one outside the tank cage for a period of time, and no electrical signal is sent to the detection relay, so that the normally open node and the normally closed node do not operate, the shaking platform safety door operation circuit operates normally, and the sound and light alarm lights do not respond. In this case, the shaking platform and the safety door can be operated.
[0015] When it is necessary to use the tank cage to transport personnel, the hookman sends a signal to the signalman, who operates to open the safety door. The hookman needs to remove the tank chain and the passengers enter the tank cage. During the process of the hookman removing the tank chain and the passengers entering the tank cage, the pyroelectric detection switch will detect that there are people outside the tank cage, the detection relay receives the electrical signal, the normally open node closes and connects, the sound and light alarm light gives off a sound and light alarm, and at the same time the normally closed node is disconnected, so that the operating circuit of the rocking platform safety door is disconnected. At this time, the safety door and the rocking platform cannot be operated; when all the passengers have entered the tank cage, the hookman hangs the tank chain and leaves the sensing range, the pyroelectric detection switch continues to detect that there is no one outside the tank cage for a period of time, and will not send an electrical signal to the detection relay. At this time, the normally open node of the detection relay is disconnected, the normally closed node is closed, the operating circuit of the rocking platform safety door can be operated normally, and the sound and light alarm light has no response; at this time, the signalman can operate the rocking platform to raise, the safety door is closed, and the tank cage is lifted and transported.
[0016] When the tank cage returns, the signalman operates the safety door to open and the cradle falls. At this time, the hookman needs to take off the tank chain, and then the tank passengers walk out of the tank cage. During the process of the hookman taking off the tank chain and the tank passengers entering the tank cage, the pyroelectric detection switch will detect that there are people outside the tank cage and send an electrical signal to the detection relay. The normally open node of the detection relay is closed and connected, and the sound and light alarm light gives off a sound and light alarm. At the same time, the normally closed node is disconnected, so that the operation circuit of the safety door of the cradle is disconnected, and the safety door and the cradle cannot be operated at this time; when all the tank passengers have left the tank cage, the hookman hangs up the tank chain again, and the hookman leaves the tank cage and walks out of the sensing range. At this time, the pyroelectric detection switch continues to detect that there is no one outside the tank cage for a period of time, and will not send an electrical signal to the detection relay, the normally open node of the detection relay is disconnected, the normally closed node is closed, the operation circuit of the safety door of the cradle is normal, and the sound and light alarm light has no response; at this time, the signalman can operate the cradle to rise and the safety door is closed. At this point, the entry and exit of the tank passengers are completed.
[0017] The tank chain is equivalent to a protective door for the tank cage, which provides protection for the people inside the tank cage. Before the tank passengers enter the tank cage, the tank chain needs to be manually removed, and when all the tank passengers have entered the tank cage, the tank chain is hung up; before the tank passengers evacuate the tank cage, the tank chain is manually removed again, and after all the tank passengers have evacuated, the tank chain is manually hung up and restored to standby status. Both the hanging and removing of the tank chain require manual operation by the hook worker.
[0018] The beneficial effects of the utility model are:
[0019] The utility model provides a pyroelectric detection switch and a detection relay, and the normally closed node of the detection relay is connected in series to the operating circuit of the rocking platform safety door. When there is someone within the sensing range outside the tank cage, the operating circuit of the rocking platform safety door is disconnected, and the rocking platform and the safety door cannot be operated, thereby eliminating the hidden danger of injuries to the hook operator and tank passengers caused by the raising of the rocking platform or the closing of the safety door, forming a layer of safety protection and improving the safety and reliability of the vehicle operating system.
[0020] The utility model provides a pyroelectric detection switch and a detection relay, and connects the normally open node of the detection relay in series to the sound and light alarm operation circuit. When there is someone within the sensing range outside the tank cage, the sound and light alarm lights alarm, which can directly and effectively remind the signal operator of the current situation of the person outside the tank cage, forming a layer of safety protection and improving the operating accuracy of the signal operator.
[0021] By adopting the above scheme, the utility model can eliminate the hidden danger that the lifting of the rocking platform or the closing of the safety door may cause harm to the hook operator and the tank passengers, achieve double safety protection, and improve the safety and reliability of the vehicle operating system. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0023] Figure 1 It is a connection diagram of a pyroelectric detection switch and a detection relay in the utility model.
[0024] Figure 2 It is a schematic diagram of the sound and light alarm operation circuit in the utility model.
[0025] Figure 3 It is a schematic diagram of the operating circuit of the rocking platform safety door of the utility model.
[0026] In the figure, 1- pyroelectric detection switch, 2- detection relay, 3- normally open node, 4- normally closed node, 5- sound and light alarm light, 6- shaking platform safety door operation circuit. Implementation
[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 a limitation on the present invention.
[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0031] like Figures 1 to 3 As shown, a pyroelectric personnel monitoring alarm locking device includes a pyroelectric detection switch 1, a detection relay 2, an audible and visual alarm lamp 5, a shaking table and a safety door operating system.
[0032] The sound and light alarm lamp 5 is placed in the sound and light alarm operation loop. The sound and light alarm lamp 5 is arranged in the signal room, close to the position of the signalman, so as to prompt the signalman.
[0033] The cradle and safety door operating system realizes the control of the cradle and the safety door through the cradle safety door operating circuit 6.
[0034] The pyroelectric detection switch 1 is arranged on the outside of the tank cage, and its sensing range is outside the tank cage, on the cradle and near the safety door. It monitors whether there are traces of people within the sensing range. The pyroelectric detection switch 1 is electrically connected to the detection relay 2; when there are traces of people within the sensing range of the pyroelectric detection switch 1, the pyroelectric detection switch 1 will send an electrical signal to the detection relay 2, and the detection relay 2 will process the electrical signal and drive the normally closed node 4 and the normally open node 3 of the detection relay 2 to act at the same time, the normally closed node 4 is disconnected, and the normally open node 3 is closed.
[0035] The normally open node 3 of the detection relay 2 is connected in series to the sound and light alarm operation circuit, and the normally closed node of the detection relay 2 is connected in series to the cradle safety door operation circuit 6.
[0036] When a person exists within the sensing range of the pyroelectric detection switch 1 , an electrical signal is sent to the detection relay 2 . When the person leaves the sensing range for a period of time, the pyroelectric detection switch 1 will not send an electrical signal to the detection relay 2 .
[0037] When the detection relay 2 does not receive the electrical signal sent by the pyroelectric detection switch 1, the normally closed node 4 and the normally open node 3 are in a normal state. When the detection relay 2 receives the electrical signal sent by the pyroelectric detection switch 1, the normally closed node 4 is opened and the normally open node 3 is closed.
[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A pyroelectric personnel monitoring alarm locking device, comprising a cradle and a safety door operating system, wherein the cradle and the safety door operating system realize the control of the cradle and the safety door through a cradle safety door operating circuit, characterized in that: It also includes a pyroelectric detection switch, a detection relay, and an audible and visual alarm light. The audible and visual alarm light is placed in the audible and visual alarm operation loop, and the audible and visual alarm light is arranged in the signal room; the pyroelectric detection switch is arranged on the outside of the tank cage, and its sensing range is outside the tank cage, on the cradle, and near the safety door; the pyroelectric detection switch is electrically connected to the detection relay, and when there are traces of personnel within the sensing range of the pyroelectric detection switch, the pyroelectric detection switch will send an electrical signal to the detection relay, and the detection relay will process the electrical signal and drive the normally closed node and the normally open node of the detection relay to act at the same time, the normally closed node is disconnected, and the normally open node is closed; when the pyroelectric detection switch fails to detect any traces of personnel within the sensing range for a period of time, the pyroelectric detection switch will not send an electrical signal to the detection relay, the detection relay returns to normal, the normally closed node is closed, and the normally open node is disconnected; the normally open node of the detection relay is connected in series to the audible and visual alarm operation loop, and the normally closed node of the detection relay is connected in series to the cradle safety door operation loop.
2. A pyroelectric personnel monitoring alarm locking device according to claim 1, characterized in that: The pyroelectric detection switches are provided with more than two, which are arranged on two sides outside the cage, and the pyroelectric detection switches are connected in parallel to the detection relay.