Lifting hook state detection device
The hook state detection system on the water gate lifting beam addresses the issue of underwater hook state monitoring by using a waterproof limit switch to ensure safe and reliable engagement with the lifting pin, even in turbid conditions.
Patent Information
- Application Number
- CN202422028706.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The prior art cannot effectively detect the hook status of the sluice gate lifting beam, resulting in the fact that the hook and the sluice gate lifting pin are not fully connected, affecting the safety of the sluice gate lifting operation.
The series circuit consisting of limit switch, detection result output component and power supply component reflects the position change of the hook through the different switching states of the limit switch, realizing the detection of the hook state, and using waterproof limit switches to be suitable for underwater environments.
It realizes reliable detection of the hook status under underwater conditions, improves the safety and reliability of the water gate lifting operation, and is suitable for underwater scenes with high turbidity.
Smart Images
Figure CN223102555U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of hoisting of water gates, and particularly to a hook state detection device. Background Art
[0002] In the nuclear power field, the water gate hoisting beam is a pure mechanical structure used to realize the hoisting operation of nuclear power water gates. Figure 1 Illustrates a schematic structural diagram of a water gate hoisting beam. As shown in combination with Figure 1 the water gate hoisting beam may include: a hoisting beam, a hook, a biasing lever, and a slideway. Among them, both ends of the hoisting beam move up and down in the slideway; the hook is used to connect with the lifting pin on the gate lifting rod to lift or lower the gate driven by the hoisting beam; the biasing lever is used to control the grasping and unhooking of the hook. Specifically, when performing the water gate lifting operation, the hoisting beam descends to prepare for lifting the gate, and then the hook automatically grasps the lifting pin of the water gate to realize the gate lifting; when performing the water gate lowering operation, after the hook is hooked on the lifting pin of the gate lifting rod, the biasing lever is adjusted to the unhooking position, and then after the gate descends in place, the hook automatically disengages from the lifting pin of the gate under the action of the gravity of the biasing lever, realizing the unhooking of the water gate hoisting beam from the water gate, and finally completing the water gate lowering operation. Based on this, the current water gate hoisting beam realizes the hoisting operation of the water gate by adjusting the position of the biasing lever to make the hoisting beam hook of the water gate automatically grasp or unhook the lifting pin of the water gate.
[0003] Since the grasping and unhooking actions of the hook both occur underwater and cannot be observed, and there is no component designed on the water gate hoisting beam to realize the function of verifying the hook state, it is possible that the water gate may be unhooked and dropped due to the incomplete connection between the hook and the lifting pin of the water gate during the water gate hoisting operation, affecting the safety of the water gate hoisting operation.
[0004] Therefore, how to detect the state of the hook of the gate hoisting beam has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content
[0005] In view of the above problems, the present application provides a hook state detection device to detect the state of the hook of the gate hoisting beam, thereby improving the safety of the water gate hoisting operation.
[0006] The specific solutions are as follows:
[0007] The present application provides a hook state detection device applied to a water gate hoisting beam. The device includes: a limit switch, a detection result output component, a power supply component, and a fastening device;
[0008] The limit switch is fixedly installed on the lifting beam of the water gate hoisting beam through the fastening device; and when the hook of the water gate hoisting beam is in the vertical position, the hook is in contact with the contactor of the limit switch, and the built-in switch of the limit switch is triggered to act; when the hook rotates to the target position in a direction away from the vertical position, the built-in switch of the limit switch resets; wherein, the target position is: the position of the hook relative to the lifting beam when the lifting pin of the water gate is outside the hook bend of the hook and the tip of the hook contacts the lifting pin.
[0009] The limit switch is connected in series with the detection result output component and the power supply component through a wire to form a series circuit; in the case of power supply from the power supply component, different output states of the detection result output component correspond to different switch states of the built-in switch.
[0010] The limit switch is a waterproof limit switch.
[0011] In a possible implementation, the power supply component includes: a battery pack with a power switch; when the power switch is in the closed state, the power supply component supplies power.
[0012] In a possible implementation, after the built-in switch resets, the movable contact of the built-in switch connects to the normally open contact of the built-in switch; after the built-in switch is triggered by the hook to act, the movable contact connects to the normally closed contact of the built-in switch.
[0013] In the case of power supply from the power supply component, when the hook is in the vertical position, the series circuit is in the conducting state, the output state of the detection result output component is the first state, and when the hook rotates from the vertical position to the target position, the series circuit is in the cut-off state, and the output state of the detection result output component is the second state different from the first state.
[0014] In a possible implementation, the detection result output component is an indicator light, the first state is the bright state, and the second state is the extinguished state.
[0015] In a possible implementation, the fastening device includes: a clamping member, a first fastener, and a second fastener;
[0016] Wherein, the limit switch is fixedly connected to the clamping member through the first fastener, and the clamping member is fixedly installed on the lifting beam through the second fastener.
[0017] With the above technical solution, the hook state detection device for the hoisting beam of the water gate provided by this application may include: a limit switch, a detection result output component, a power supply component, and a fastening device; among them, the limit switch is a waterproof limit switch, and the limit switch is fixedly installed on the hoisting beam of the water gate hoisting beam through the fastening device; and when the hook of the water gate hoisting beam is in the vertical position, the hook is in contact with the contactor of the limit switch, and the built-in switch of the limit switch is triggered to act; when the hook rotates to the target position in the direction away from the vertical position, the built-in switch of the limit switch resets, where the target position is: the lifting pin of the water gate is outside the hook bend of the hook, and the position of the hook relative to the hoisting beam when the tip of the hook contacts the lifting pin; in addition, the limit switch is connected in series with the detection result output component and the power supply component through a wire to form a series circuit. When the power supply component is powered on, different output states of the detection result output component correspond to different switch states of the built-in switch. Due to the different positions of the hook, the positional relationship between the hook and the contactor of the limit switch is different, resulting in different switch states of the built-in switch of the limit switch. When the power supply component is powered on, the on-off state of the series circuit and the output state of the detection result output component are different. That is to say, this application reflects the position state of the hook through the output state of the detection result output component. Since when the hoisting beam is at a certain descending height, the positional relationship between the hoisting beam and the lifting pin of the water gate is determined. Based on this, the connection relationship between the hook and the lifting pin of the water gate can be determined according to the position state of the hook, thus realizing the detection task of the hook state under the water surface and providing a basis for improving the safety of the water gate hoisting operation. In addition, with the waterproof limit switch, the hook state detection device can work stably and reliably underwater and can be applied to underwater scenarios with a relatively high turbidity, having wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be a limitation of this application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:
[0019] Figure 1 Illustrates a schematic structural diagram of a hoisting beam of a water gate;
[0020] Figure 2 Shows a schematic installation position diagram of the limit switch on the hoisting beam;
[0021] Figure 3 Shows a schematic positional relationship diagram between the limit switch and the hook;
[0022] Figure 4Shows a top view schematic diagram of the limit switch and the fastening device;
[0023] Figure 5 For Figure 4 Schematic diagram of the structure of the limit switch and the fastening device shown along the AA' section;
[0024] Figure 6 Shows one of the schematic diagrams of the hook state during the lifting operation of the water gate;
[0025] Figure 7 Shows another schematic diagram of the hook state during the lifting operation of the water gate;
[0026] Figure 8 Shows the third schematic diagram of the hook state during the lifting operation of the water gate;
[0027] Figure 9 Shows one of the schematic diagrams of the hook state during the lowering operation of the water gate;
[0028] Figure 10 Shows another schematic diagram of the hook state during the lowering operation of the water gate;
[0029] Figure 11 Shows the third schematic diagram of the hook state during the lowering operation of the water gate.
[0030] Reference numerals:
[0031] 11 - Lifting beam; 12 - Hook; 13 - Biasing lever; 14 - Slideway; 21 - Limit switch; 22 - Detection result output component; 23 - Power supply component; 24 - Fastening device; 25 - Wire; 211 - Contactor; 240 - Clamping member; 241 - First fastener; 242 - Second fastener; 243 - Gasket. Detailed implementation manners
[0032] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. The terms used in the embodiments part of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. Those of ordinary skill in the art know that with the development of technology and the emergence of new scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.
[0033] The applicant of this case has found through research that the hook image of the lifting beam of the water gate can be collected by an underwater camera, and it can be determined whether the hook is in a hooked state or a decoupled state through image recognition and analysis. However, the sea water in some nuclear power sea areas is turbid, resulting in a blurred hook image collected by the underwater camera and making it impossible to judge the hook state. Based on this, the hook state detection solution implemented by the underwater camera is limited by the water quality, especially the turbidity, and has poor applicability.
[0034] To solve the above problems, the present application provides a hook state detection device, which can implement the hook state detection task applicable to various underwater conditions to improve the safety of the hoisting operation of the water gate.
[0035] An embodiment of the present application provides a hook state detection device, which is applied to the hoisting beam of the water gate. The hoisting beam of the water gate may include: a hoisting beam 11, a hook 12, a biasing lever 13, and a slideway 14. The hook 12 is coaxially connected to the biasing lever 13, and the hook 12 can rotate around the axis under the action of the biasing lever 13. The hook state detection device may include: a limit switch 21, a detection result output component 22, a power supply component 23, and a fastening device 24.
[0036] Wherein, the limit switch 21 is fixedly installed on the hoisting beam 11 of the hoisting beam of the water gate through the fastening device 24. Moreover, the limit switch 21 is installed at the opening and closing stroke of the hook 12, and the contact relationship between the hook 12 in different rotation positions and the limit switch is different. The main body of the hook is usually perpendicular to the hoisting beam and downward, and the lower edge of the hook is at the lowest point. The present application refers to this state position as the hook being in the vertical position. Exemplarily, Figure 2 shows a schematic diagram of the installation position of the limit switch on the hoisting beam. As shown in combination with Figure 2 When the hook 12 of the hoisting beam of the water gate is in the vertical position, the contactor 211 of the hook 12 and the limit switch is in a contact state, and the built-in switch of the limit switch 21 is triggered to act. The built-in switch may include a normally open contact NO, a normally closed contact NC, and a movable contact. Taking the plunger type limit switch as an example, the action or collision force of the hook colliding with the contactor 211 of the limit switch 21 is transmitted to the built-in switch through the plunger inside the limit switch 21, triggering the built-in switch to act. Specifically, the movable contact of the built-in switch switches from the previously connected contact (such as a normally open contact) to another contact (such as a normally closed contact). It should be noted that the limit switch 21 may also be other types of limit switches, such as a swing rod type limit switch.
[0037] In addition, when the hook 12 rotates in a direction away from the vertical position, the hook 12 gradually moves away from the contactor 211 of the limit switch 21, and the acting force of the hook 12 on the limit switch 21 gradually weakens to disappear, and both the contactor 211 and the built-in switch return to the original state, that is, the limit switch 21 resets. The present application refers to the position of the hook 12 relative to the hoisting beam 11 when the lifting pin 1 of the water gate is outside the hook bend of the hook 12 and the tip part of the hook 12 contacts the lifting pin 1 as the target position. When the hook 12 rotates in a direction away from the vertical position to the target position, the built-in switch of the limit switch 21 resets, and the positional relationship between the limit switch and the hook is as shown in Figure 3As shown, it should be noted that at this time, the hook 12 and the contactor 211 can be in a non-contact state, or in a state where they are in contact but the built-in switch cannot be triggered to act. This application does not make any limitations in this regard.
[0038] On this basis, the limit switch 21 is connected in series with the detection result output component 22 and the power supply component 23 through a wire 25 to form a series circuit.
[0039] Among them, the detection result output component 22 is used to provide information characterizing the state of the hook. This information can be sound information, light information or other information, which is not limited in this application and can be expressed as the output state of the detection result output component 22; the power supply component is used to provide power. When the power supply component is powered on, different switch states of the built-in switch correspond to different circuit states of the series circuit and different output states of the detection result output component.
[0040] Moreover, the limit switch is a waterproof limit switch. For example, the limit switch YN-3108-FS with an IP68 waterproof rating.
[0041] With the above-mentioned hook state detection device, when the power supply component is powered on, due to the different positions of the hook, the positional relationship between the hook and the contactor of the limit switch is different, resulting in different switch states of the built-in switch of the limit switch. Therefore, when the power supply component is powered on, the on-off state of the series circuit is different and the output state of the detection result output component is different. That is to say, this application reflects the position state of the hook through the output state of the detection result output component. Since when the lifting beam is at a certain descending height, the positional relationship between the lifting beam and the lifting pin of the water gate is determined. Based on this, the connection relationship between the hook and the lifting pin of the water gate can be determined according to the position state of the hook, thus realizing the detection task of the hooking state or unhooking state of the hook, providing a basis for improving the safety of the water gate lifting operation.
[0042] In one or more embodiments provided by this application, the fastening device 24 includes: a clamping member 240, a first fastener 241 and a second fastener 242.
[0043] Among them, the limit switch 21 is fixedly connected to the clamping member 240 through the first fastener 241, and the clamping member 240 is fixedly installed on the lifting beam 11 through the second fastener 242.
[0044] Exemplarily, Figure 4 shows a top view schematic diagram of the limit switch and the fastening device. Figure 5 is Figure 4 the schematic cross-sectional structure diagram of the limit switch and the fastening device shown along the AA' section. CombiningFigure 4 and Figure 5 As shown in Figure 5 , the limit switch 21 is fixedly connected to the clamping member 240 through the first fastener 241. The contactor 211 of the limit switch 21 and the wire 25 connecting the limit switch 21 are exposed outside the clamping member 240. In addition, a gasket 243 can be provided between the limit switch 21 and the first fastener 241; the clamping member 240 can be fixedly installed on the lifting beam 11 through four second fasteners 242. It should be noted that in Figure 4 , except for the first fastener 241, the second fastener 242, the limit switch 21, and the gasket 243, the rest of each part belongs to the clamping member 240. In this application, different parts of the clamping member at different heights are represented by different diagrams.
[0045] In one or more embodiments provided by this application, the power supply assembly 23 may include: a battery pack with a power switch.
[0046] Wherein, when the power switch is in the closed state, the power supply assembly supplies power.
[0047] In one or more embodiments provided by this application, the detection result output assembly 22 may include an indicator light, and the output states of the indicator light may include a bright state and an extinguished state.
[0048] It should be noted that the power supply assembly and the detection result output assembly can be held by a person. The power supply assembly (such as a battery pack) and the detection result output assembly (such as an indicator light) are connected to the wire 25 connecting the limit switch to form a series circuit. Based on this, after the limit switch is fixed on the lifting beam through the fastening device, during the process of the lifting beam descending into the sea water to perform the hoisting operation of the water gate, the ground lifting operator can determine the position state of the hook of the lifting beam by observing the change in the output state of the detection result output assembly, so as to determine the hanging state of the underwater hook and the lifting pin of the water gate, and finally solve the problem that personnel on the water surface cannot judge whether the hook of the lifting beam is fully hooked to the lifting pin of the water gate through the lifting beam itself, improving the safety and reliability of the water gate hoisting operation.
[0049] In one or more embodiments provided by this application, after the built-in switch is reset, the movable contact of the built-in switch connects to the normally open contact of the built-in switch; after the built-in switch is actuated by the hook, the movable contact connects to the normally closed contact of the built-in switch.
[0050] Based on the above, when the power supply component 23 is powered on and the hook 12 is in the vertical position, the series circuit is in a conducting state, and the output state of the detection result output component 22 is the first state. When the hook 12 rotates from the vertical position to the target position, the series circuit is in a cut-off state, and the output state of the detection result output component 22 is a second state different from the first state.
[0051] Taking the detection result output component 22 as an indicator light as an example, the first state is the bright state, and the second state is the extinguished state.
[0052] On this basis, Figures 6 - 8 The schematic diagram of the hook state during the lifting operation of the water gate is shown. During this process, the power supply component is always in the powered-on state. Combining Figure 6 As shown, when the lifting beam 11 has not descended, the hook 12 is in the vertical position, and the movable contact of the built-in switch connects to the normally closed contact. The series circuit composed of the limit switch, the power supply component, and the indicator light is in the connected state, and the indicator light is in the bright state. As the lifting beam descends, when the hook 12 contacts the lifting pin of the water gate, the hook rotates and swings in the direction away from the vertical position and the contactor of the limit switch, such as Figure 7 shown in the clockwise direction. At this time, the lifting pin of the water gate is outside the hook bend of the hook 12 and contacts the hook tip part of the hook 12. The hook 12 is disengaged from the contactor of the limit switch and is in a non-contact state. In this case, the movable contact of the built-in switch connects to the normally open contact, the series circuit is in the cut-off state, and the indicator light is in the extinguished state. As the lifting beam continues to descend, as Figure 8 shown, the hook 12 returns to the vertical position, the hook 12 is fully hooked to the lifting pin of the water gate, the movable contact of the built-in switch connects to the normally closed contact, the series circuit is in the connected state, and the indicator light is in the bright state. After that, the lifting beam can be lifted to lift the water gate. Combining Figures 6 - 8 As shown, the operator realizes the detection task of the hook state during the lifting operation of the water gate by observing the state switching process of the indicator light from bright to extinguished to bright.
[0053] Correspondingly, Figures 9 - 11 The schematic diagram of the hook state during the lowering operation of the water gate is shown. During this process, the power supply component is always in the powered-on state. Combining Figure 9 As shown, the hook is in the vertical position and is hooked to the lifting pin of the water gate. The movable contact of the built-in switch connects to the normally closed contact, the series circuit is in the connected state, and the indicator light is in the bright state. Then, lower the lifting beam and the water gate to the bottom of the channel. As the lifting beam continues to descend, under the action of the biasing lever, the hook rotates and swings in the direction away from the vertical position and the contactor of the limit switch, such as Figure 8In the clockwise direction shown, the hook gradually disengages from the lifting pin of the water gate and from the contactor of the limit switch, and the two are in a non-contact state. As Figure 9 shown, in this case, the movable contact of the built-in switch is connected to the normally open contact, the series circuit is in a cut-off state, and the indicator light is in an extinguished state. Combining Figures 9 - 11 shown, the operator realizes the detection task of the hook state during the falling operation of the water gate by observing the state switching process of the indicator light on and off.
[0054] Finally, it should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, article or device comprising the said element.
[0055] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referred to each other.
[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A hook state detection device, characterized in that, Applied to the hoisting beam of the water gate, the device includes: a limit switch, a detection result output component, a power supply component and a fastening device; The limit switch is fixedly installed on the hoisting beam of the water gate hoisting beam through the fastening device; and when the hook of the water gate hoisting beam is in the vertical position, the hook is in contact with the contactor of the limit switch, and the built-in switch of the limit switch is triggered to act; when the hook rotates to the target position in the direction away from the vertical position, the built-in switch of the limit switch resets; wherein, the target position is: the position of the hook relative to the hoisting beam when the lifting pin of the water gate is outside the hook bend of the hook and the tip of the hook is in contact with the lifting pin; The limit switch is connected in series with the detection result output component and the power supply component through a wire to form a series circuit; when the power supply component is powered on, different output states of the detection result output component correspond to different switch states of the built-in switch; The limit switch is a waterproof limit switch.
2. The hook state detection device according to claim 1, characterized in that, The power supply component includes: a battery pack with a power switch; when the power switch is in the closed state, the power supply component is powered on.
3. The hook state detection device according to claim 2, wherein, After the built-in switch resets, the movable contact of the built-in switch connects to the normally open contact of the built-in switch; After the built-in switch is triggered by the hook to act, the movable contact connects to the normally closed contact of the built-in switch; When the power supply component is powered on, when the hook is in the vertical position, the series circuit is in a conducting state, the output state of the detection result output component is the first state, and when the hook rotates from the vertical position to the target position, the series circuit is in a cut-off state, and the output state of the detection result output component is the second state different from the first state.
4. The hook state detection device according to claim 3, characterized in that, The detection result output component is an indicator light, the first state is a bright state, and the second state is an extinguished state.
5. The hook state detection device according to any one of claims 1-4, characterized in that, The fastening device includes: a clamping component, a first fastener and a second fastener; Wherein, the limit switch is fixedly connected to the clamping component through the first fastener, and the clamping component is fixedly installed on the hoisting beam through the second fastener.