Intelligent primary and secondary fusion ring main unit

Abstract

The invention relates to an intelligent primary and secondary fusion ring main unit, and relates to the technical field of ring main units, the intelligent primary and secondary fusion ring main unit comprises a box body frame, at least two diagonal positions of the box body frame are respectively provided with a hoisting stress sensing module, each module comprises a shell, a stress sensing and buffering assembly and an indicating assembly, the stress sensing and buffering assembly is provided with a movable part and an elastic mechanism, the indicating assembly comprises a transmission mechanism, a display mechanism and a locking mechanism, the stress sensing and buffering assembly further relates to specific structures of a guide mechanism and the elastic mechanism of the stress sensing and buffering assembly and specific structures of the transmission mechanism, the display mechanism, a one-way transmission mechanism, the locking mechanism, a reset mechanism and the like, and the shell is provided with an observation window. The effects that the stress condition is monitored in real time when the ring main unit is hoisted, the stress state is accurately indicated, the pointer is prevented from rotating, and the pointer can be reset for use next time are achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of ring network boxes, in particular to an intelligent primary and secondary fusion ring network box. BACKGROUND

[0002] In the power system, the ring network box as an important electrical equipment is widely used in urban power grids, industrial parks and other places, and undertakes key functions such as power distribution and circuit control. With the continuous development of the power industry, the safety performance and reliability of the ring network box are increasingly improved. In the installation and maintenance process of the ring network box, hoisting operation is a crucial link, and the accuracy and safety of the operation directly affect the structural integrity of the ring network box and the subsequent normal operation. Effective hoisting management can ensure the smooth use of the ring network box, reduce the probability of failure and ensure the stability of power supply.

[0003] In the related art, some conventional means are usually adopted. On the one hand, the operator will judge the situation in the hoisting process according to his own experience, such as observing the swing amplitude of the ring network box and the tightness of the rope, so as to adjust the speed and direction of hoisting. On the other hand, some simple buffer devices such as rubber pads and springs are used in part of the hoisting operation to reduce the impact force in the hoisting process. In addition, a simple inspection of the structure of the ring network box is carried out before hoisting to ensure that it will not be obviously damaged in the hoisting process.

[0004] However, due to the lack of effective monitoring and recording in the hoisting process, the hoisting process, especially the overload impact, is often invisible. The operator cannot accurately judge whether the ring network box is subjected to improper stress in the hoisting process, which may easily lead to hidden structural damage of the ring network box. These hidden damages may not affect the normal operation of the ring network box in the short term, but they may gradually develop into serious faults over time, posing a potential threat to the safe operation of the power system. SUMMARY

[0005] The application aims to overcome the above technical problems and provides an intelligent primary and secondary fusion ring network box.

[0006] An intelligent primary and secondary fusion ring network box comprises a box frame, and at least two diagonal positions of the box frame are respectively provided with a hoisting stress sensing module; The hoisting stress sensing module comprises a shell, a stress sensing and buffering assembly and an indicating assembly; The shell is fixed to the box frame, and a connecting portion for connecting a hoisting tool is arranged at the top of the shell; The stress sensing and buffering assembly is arranged in the shell and comprises a movable piece connected with the connecting portion and capable of sliding relative to the shell in response to the hoisting tension, and an elastic mechanism for applying an elastic return force to the movable piece. The indicating assembly comprises a transmission mechanism connected with the movable element for converting the sliding of the movable element into a rotating motion and transmitting the rotating motion to a display mechanism, and the display mechanism is provided with a pointer for indicating the stress state; The indicating assembly further comprises a locking mechanism for preventing the pointer from rotating back when the stress decreases.

[0007] By adopting the above technical scheme, a complete and innovative technical scheme framework is established, a pure mechanical special lifting module with the four-in-one functions of sensing, buffering, indicating and memorizing is integrated on the traditional ring net box, the invisible lifting process is converted into a mechanical signal which can be directly observed and permanently traced, the lifting operation is changed from a black box operation to transparent and recordable management, and a safe and reliable systematic solution without external energy is provided for solving the hidden structural damage of the ring net box caused by improper lifting.

[0008] Optionally, the stress sensor and the buffering assembly further comprise a guide mechanism. The guide mechanism comprises a guide rod fixedly connected with the movable element, and a sliding ring sleeved outside the guide rod and fixedly connected with the guide rod. The sliding ring is in sliding fit with the inner wall of the housing through a friction piece with an outer tapered surface; the inner wall of the housing is provided with an inner tapered surface corresponding to the outer tapered surface, and when the sliding ring slides to the region corresponding to the inner tapered surface along the stress direction, the friction piece is radially extruded to increase the sliding friction resistance.

[0009] By adopting the above technical scheme, a kind of "intelligent" or "progressive" composite buffering mechanism is provided, which ensures the sensing sensitivity under normal load, and makes the friction force nonlinearly and sharply increase under severe overload, dissipates a large amount of impact energy, improves the protection capability under extreme conditions, and prevents the "breakdown" phenomenon.

[0010] Optionally, the elastic mechanism comprises a disc spring piece group sleeved on the guide rod and a pre-tightening piece for applying a pre-tightening force to the disc spring piece group. The disc spring piece group is located between the sliding ring and a limiting structure fixed in the housing; the pre-tightening piece comprises a mounting plate threadedly connected with the housing, an abutting plate which can move axially, and a helical spring connecting the mounting plate and the abutting plate, and the abutting plate abuts against the sliding ring.

[0011] By adopting the above technical scheme, a high-precision and calibratable force sensing foundation is constructed, the disc spring group provides a good linearity and high stability force-displacement relationship, accurately senses the tension, the pre-tightening piece provides a settable initial load "zero point" or "threshold value" for the system, filters irrelevant small disturbances, adjusts the pre-tightening force by rotating the mounting plate, calibrates the sensitivity and range of the sensing module, adapts to ring net boxes of different weight specifications, and improves the universality and maintainability of the product.

[0012] Optionally, the transmission mechanism comprises a connecting rod, a sliding plate and a rack; The connecting rod is hingedly connected to the sliding ring at one end and hingedly connected to the sliding plate at the other end. The sliding plate is slidably arranged in a sliding groove of the housing and fixedly connected to the rack.

[0013] By adopting the above technical scheme, the transmission mechanism composed of the connecting rod, the sliding plate and the rack reliably amplifies the tiny linear displacement and converts it into rotary motion, overcomes the gap error and wear problem that may exist in pure lever, and ensures the fidelity and durability of displacement transmission in a vibration and impact environment, thereby laying a solid foundation for subsequent accurate indication and locking.

[0014] Optionally, the display mechanism comprises a rotating rod, a driven gear fixed to the rotating rod and engaged with the rack, and a pointer. The rotating rod comprises an input portion and an output portion arranged coaxially; The driven gear is fixed to the input portion, and the pointer is fixed to the output portion. A one-way transmission mechanism is arranged between the input portion and the output portion.

[0015] By adopting the above technical scheme, the physical separation of "real-time signal input" and "historical peak value retention" is achieved in structure, so that the pointer only responds to the process of increasing tension and is decoupled from the process of decreasing tension, thereby creating necessary structural conditions for realizing the "peak memory" function.

[0016] Optionally, the one-way transmission mechanism comprises a driving tab arranged at the end of the input portion and a driving groove arranged at the end of the output portion and cooperating with the driving tab. A first wedge-shaped tooth block is arranged in the driving groove. The driving tab is configured to push the first wedge-shaped tooth block to drive the output portion to rotate synchronously when the input portion rotates in a first direction, and to slip with the first wedge-shaped tooth block when the input portion rotates in the opposite direction.

[0017] By adopting the above technical scheme, a delicate, low-wear and protection-enabled one-way clutch is provided. In the forward direction, rigid pushing ensures immediate and accurate indication, and in the reverse direction, internal stress and wear caused by forced reverse linkage of the mechanism are avoided, thereby realizing one-way transmission function and playing an overload protection role for the transmission chain.

[0018] Optionally, the locking mechanism comprises a second wedge-shaped tooth block arranged on the output portion and a pawl rotatably arranged in the housing. The pawl has a locking portion cooperating with the second wedge-shaped tooth block. When the output portion rotates in a first direction, the locking portion slides over the second wedge-shaped tooth block. When the output portion attempts to rotate in the opposite direction, the locking portion is blocked by the second wedge-shaped tooth block.

[0019] By adopting the above technical scheme, the pawl in the locking mechanism cooperates with the second wedge-shaped tooth block to form a one-way check valve, providing a second heavy and final rigid locking guarantee, and forming a redundant design with the previous "flexible" one-way clutch, double insurance to ensure the absolute reliability and irreversibility of the memory, even if long-term vibration, it can also ensure that the pointer position never retreats, firmly "burning" the maximum stress value.

[0020] Optionally, it further comprises a reset mechanism; The reset mechanism comprises an axially movable reset pressure rod, a button arranged at one end of the reset pressure rod, and a reset spring sleeved on the reset pressure rod; The other end of the reset pressure rod abuts against the driving end of the pawl, and pressing the button can drive the pawl to rotate through the reset pressure rod to make the locking part of the pawl disengage from the second wedge-shaped tooth block; A reset torsional spring is sleeved on the output part, and when the pawl disengages, the reset torsional spring drives the output part and the pointer to rotate to the initial position.

[0021] By adopting the above technical scheme, a second heavy and final rigid locking guarantee is provided, and a redundant design is formed with the "flexible" one-way clutch, double insurance to ensure the absolute reliability and irreversibility of the memory, even if long-term vibration, it can also ensure that the pointer position never retreats.

[0022] Optionally, a limiting ring is arranged in the shell to limit the maximum sliding stroke of the sliding ring and the movable part.

[0023] By adopting the above technical scheme, the limiting ring physically limits the maximum stroke of the movable part, absolutely prevents the elastic element (disc spring piece) from being over-compressed and failing, and also prevents the transmission mechanism from being damaged due to over-stroke, ensuring that the entire module can still maintain structural integrity and not fail catastrophically under extreme abnormal conditions.

[0024] Optionally, an observation window is arranged on the shell, and the observation window is sealed by a transparent material and faces the pointer.

[0025] By adopting the above technical scheme, the internal precise mechanical indication information can be efficiently and reliably transmitted to the external observer, so that the operation and maintenance personnel can quickly read the data without opening the box or module, and at the same time, the internal precise mechanism is protected from dust, moisture, corrosion and other environmental influences, ensuring that the indication system can be clearly visible and reliably operated for a long time under outdoor harsh conditions.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. A complete and innovative technical solution framework has been established. A dedicated hoisting module with "sensing-buffering-indication-memory" functions is creatively integrated into the traditional ring main unit. This module transforms the invisible hoisting process into a mechanical signal that can be directly observed and permanently traced. This achieves a fundamental transformation of hoisting operations from "black box operation" to "transparent and recordable management". It provides a systematic solution that requires no external energy and is inherently safe and reliable, solving the problem of hidden structural damage to ring main units caused by improper hoisting. 2. Constructing a high-precision, calibrable force sensing foundation, the disc spring assembly provides a force-displacement relationship with good linearity and high stability, enabling accurate sensing of tension; the unique preload design provides the system with a settable initial load "zero point" or "threshold", filtering out irrelevant minor disturbances, and the preload can be easily adjusted by rotating the mounting plate, calibrating the sensitivity and range of the sensing module, adapting to ring main units of different weight specifications, and improving product versatility and maintainability; 3. A mechanical link is provided to reliably amplify and convert minute linear displacements into rotational motion, overcoming the gap error and wear problems that may exist in pure levers, ensuring the fidelity and durability of displacement transmission under vibration and impact environments. The all-mechanical hard-connection transmission method ensures that the signal has no delay and no attenuation, laying a solid foundation for subsequent accurate indication and locking. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a structural schematic diagram of the present application, mainly showing the shell; Figure 3 This is a structural schematic diagram of the present application, mainly showing the sliding ring; Figure 4 This is a structural diagram of the present application, mainly showing the mounting box; Figure 5 This is a structural diagram of the present application, mainly showing the pointer; Figure 6 This is a structural diagram of the present application, mainly showing the drive wheel and the bearing wheel.

[0028] BRIEF DESCRIPTION OF DRAWINGS: 1, box frame; 2, shell; 3, bottom plate; 4, top cover; 5, lifting hook; 6, guide rod; 7, annular lining; 8, sliding ring; 9, rubber pad; 10, groove; 11, first taper surface; 12, second taper surface; 13, limiting ring; 14, disc spring piece group; 15, mounting plate; 16, top plate; 17, coil spring; 18, connecting rod; 19, mounting box; 20, sliding plate; 21, sliding groove; 22, rack; 23, rotating rod; 24, driven gear; 25, display disc; 26, rotating bearing; 27, observation window; 28, pointer; 29, limiting block; 30, drive wheel; 31, drive spring piece; 32, driven wheel; 33, first wedge-shaped tooth block; 34, second wedge-shaped tooth block; 35, reset torsional spring; 36, drive groove; 37, pawl; 3701, locking part; 3702, connecting part; 3703, pressing part; 38, rotating shaft; 39, reset compression rod; 40, reset spring; 41, button; 42, abutting spring. DETAILED DESCRIPTION

[0029] The following will be described in detail in combination with the accompanying Figure 1 - the accompanying Figure 6 , the present application is further described in detail.

[0030] A smart primary and secondary fusion ring network box, referring to Figure 1 , comprising a box frame 1, and a plurality of lifting stress sensing modules arranged on the box frame 1, and at least two lifting stress sensing modules are arranged at opposite corners of the box frame 1. The lifting stress sensing module comprises a stress sensing and buffering assembly and an indicating assembly, which reduces the risk of overloading deformation of the frame during lifting through the stress sensing and buffering assembly, and enables the operation and maintenance personnel to directly observe the stress state of each lifting point of the box during or after lifting through the indicating assembly, realizing the transparency of the mechanical process.

[0031] Referring to Figure 1 , Figure 2 , the lifting stress sensing module comprises a shell 2 fixedly connected to the outer surface of the box frame 1 at the opposite corners, and the shell 2 is a hollow cylinder. Among them, the stress sensing and buffering assembly and the indicating assembly are installed at the hollow inner cavity of the shell 2. The bottom surface of the shell 2 is fixedly connected with the bottom plate 3 through the screw, and the bottom surface of the shell 2 is closed through the bottom plate 3. The top of the shell 2 penetrates the top cover 4 above the box frame 1, and a cover plate is arranged at the end thereof, and the lifting hook 5 is fixedly connected to the outer surface of the cover plate through the bolt, and the lifting hook 5 is connected with the crane. In addition, the cover plate can axially slide along the outer surface of the shell 2.

[0032] The stress sensing and buffering assembly comprises a guide mechanism and an elastic mechanism installed on the guide mechanism.

[0033] Referring to Figure 2 , Figure 3The guide mechanism comprises a guide rod 6, one end of which is fixedly connected with the inner surface of the cover plate, the other end of which extends into the shell 2, and the guide rod 6 is coaxially arranged with the cover plate, the middle part of the guide rod 6 is sleeved with an annular inner liner 7, the outer surface of the guide rod 6 abuts against the inner wall of the annular inner liner 7, and the two are fixedly connected by screws. The outer surface of the annular inner liner 7 is fixedly connected with a sliding ring 8, the outer surface of the sliding ring 8 is wrapped with a rubber pad 9, and the sliding ring 8 and the shell 2 are relatively slid by the rubber pad 9. In addition, the arc-shaped outer surface of the rubber pad 9 is provided with an annular groove 10, and the annular groove 10 is filled with lubricating oil, so as to reduce the friction between the shell 2 and the sliding ring 8.

[0034] The outer surface of the rubber pad 9 is provided with a first taper surface 11, and the side of the rubber pad 9 facing the cover plate is contracted towards the axis of the guide rod 6. The inner wall of the shell 2 is integrally formed with a second taper surface 12, and the second taper surface 12 is located on the sliding path of the rubber pad 9, so that the rubber pad 9 will gradually contract inward along the second taper surface 12 after sliding, thereby gradually increasing the friction between the rubber pad 9 and the inner wall of the shell 2.

[0035] The inner wall of the shell 2 is fixedly connected with a limiting ring 13, which is located between the sliding ring 8 and the top cover 4, and is used to limit the sliding amount of the sliding ring 8 and the cover plate fixedly connected with the guide rod 6, so as to ensure that the cover plate is always sleeved on the shell 2 during hoisting. At the same time, through the cooperation of the first taper surface 11 and the second taper surface 12, the impact force acting on the limiting ring 13 can be effectively reduced, so as to ensure the service life of the limiting ring 13.

[0036] The elastic mechanism comprises a disc spring group 14 and an elastic pre-tightening piece. The disc spring group 14 is composed of a plurality of disc springs, which are sleeved on the guide rod 6 and located between the sliding ring 8 and the limiting ring 13.

[0037] The elastic pre-tightening piece comprises a mounting plate 15, a top plate 16 and a coil spring 17 for connecting the mounting plate 15 and the top plate 16. The periphery of the mounting plate 15 is threadedly connected with the inner wall of the shell 2. After the mounting plate 15 is threadedly connected with the shell 2, the sliding ring 8 of the guide rod 6 can be pressed by the top plate 16, and the top plate 16 abuts against the sliding ring 8, so that the coil spring 17 and the disc springs in the disc spring group 14 are all in a pre-compressed state, thereby pushing the guide rod 6 to the initial position.

[0038] The indicating assembly comprises a transmission mechanism and a display mechanism. The transmission mechanism is used to amplify the stress acting on the guide rod 6 and transmit it to the display mechanism, so that the display mechanism can convert and display the stress.

[0039] Referring to Figure 3 , Figure 4 , Figure 5The transmission mechanism comprises a connecting rod 18 connected to the sliding ring 8 through a hinge, and the end of the connecting rod 18 away from the sliding ring 8 is connected to a sliding plate 20 through a hinge. In addition, the housing 2 is integrally formed with a mounting box 19 on one side, and the housing 2 is provided with an opening communicating with the inner cavity of the mounting box 19, and the inner wall of the opening of the housing 2 is provided with a sliding groove 21, and the sliding plate 20 is slidingly installed in the sliding groove 21. And the side of the sliding plate 20 facing the mounting box 19 is fixedly connected with a rack 22, so that the sliding plate 20 can drive the rack 22 to slide along the sliding groove 21 after sliding.

[0040] The display mechanism comprises a rotating rod 23 rotatably connected in the inner cavity of the mounting box 19, and the outer surface of the rotating rod 23 is axially sleeved with a driven gear 24, and the driven gear 24 is engaged with the rack 22, so that the rack 22 can drive the rotating rod 23 to rotate synchronously after sliding. In addition, the mounting box 19 is provided with a display opening on one side of the rotating rod 23, and the display opening is fixedly connected with a display disc 25, and the middle part of the display disc 25 is fixedly connected with a rotating bearing 26, and one end of the rotating rod 23 extends into the rotating bearing 26.

[0041] The mounting box 19 is provided with an observation window 27 made of transparent material at the display opening, and the observation window 27 is fixedly connected with the surface of the mounting box 19 by screws. The outer surface of the rotating rod 23 between the display disc 25 and the observation window is fixedly connected with a pointer 28, and the side of the display disc 25 facing the observation window 27 is provided with a plurality of color blocks or scale tables, so that the stress is displayed by the cooperation of the pointer 28 and the display disc 25. In addition, the display disc 25 is fixedly connected with a limiting block 29, and the pointer 28 abuts against the limiting block 29 at the initial position.

[0042] Referring to Figure 4 、 Figure 5 、 Figure 6 The rotating rod 23 comprises an input portion and an output portion. The driven gear 24 is installed on the input portion, and the display disc 25, the rotating bearing 26 and the pointer 28 are installed on the output portion. The end of the input portion facing the output portion is integrally formed with a driving wheel 30, and the arc-shaped outer surface of the driving wheel 30 is fixedly connected with a plurality of driving springs 31, and the plurality of driving springs 31 are evenly distributed along the circumference of the driving wheel 30. The driving spring 31 is bent and formed in a wedge shape, and the inclined surface thereof is opposite to the rotating direction of the driven gear 24 when the rack 22 slides upward.

[0043] The output part is integrally formed with a driver wheel 32 at one end of the input part. The driver wheel 32 is provided with a driving groove 36 on one side surface thereof. The inner wall of the driving groove 36 is integrally formed with a plurality of first wedge-shaped tooth blocks 33. The plurality of first wedge-shaped tooth blocks 33 are uniformly arranged along the arc-shaped inner wall of the driving groove 36. The inclined surface of each first wedge-shaped tooth block 33 is matched with the inclined surface of the driving spring 31. When the rack 22 slides upward, the driving spring 31 can extend into the space between the first wedge-shaped tooth block 33 and the inner wall of the driving groove 36, thereby pushing the driver wheel 32 to rotate. In addition, when the rack 22 slides downward, the inclined surface of the driving spring 31 slides relative to the inclined surface of the first wedge-shaped tooth block 33, and the driving spring 31 elastically deforms, so that the driving spring 31 and the first wedge-shaped tooth block 33 slip, thereby disconnecting the driving wheel 30 and the driver wheel 32.

[0044] The outer part of the driver wheel 32 is integrally formed with a plurality of second wedge-shaped tooth blocks 34. The plurality of second wedge-shaped tooth blocks 34 are uniformly distributed along the arc-shaped outer surface of the driver wheel 32. The inclined surface of each second wedge-shaped tooth block 34 is opposite to the inclined surface of the driving spring 31. The pawl 37 is rotatably connected in the mounting box 19. The output part is axially sleeved with a reset torsion spring 35. One end of the reset torsion spring 35 is fixedly connected with the driver wheel 32, and the other end is fixedly connected with the side surface of the display disc 25 away from the observation window 27.

[0045] The pawl 37 includes a locking part 3701, a connecting part 3702, and a pressing part 3703. The connecting part 3702 is provided with a rotating shaft 38, and is rotatably connected with the inner wall of the mounting box 19 through the rotating shaft 38. The locking part 3701 is in a curved shape with elasticity. The curved inclined surface of the locking part 3701 is matched with the inclined surface of the second wedge-shaped tooth block 34. When the tooth block slides upward, the inclined surface of the locking part 3701 slides along the inclined surface of the second wedge-shaped tooth block 34, so that the two surfaces slip. When the tooth block slides downward, the end of the locking part 3701 abuts against the second wedge-shaped tooth block 34, thereby limiting the rotation of the driver wheel 32 and the pointer 28. The mounting box 19 is slidably connected with a reset pressing rod 39. One end of the reset pressing rod 39 abuts against the pressing part 3703, and the other end penetrates through the mounting box 19 and extends outside and is sleeved with a button 41. The reset pressing rod 39 is axially sleeved with a reset spring 40. One end of the reset spring 40 is fixedly connected with the positioning ring on the reset pressing rod 39, and the other end is fixedly connected with the inner wall of the mounting box 19. In addition, the end of the pressing part 3703 away from the reset pressing rod 39 is fixedly connected with an abutting spring 42. The abutting spring 42 cooperates with the reset pressing rod 39 to provide support for the pressing part 3703, so as to avoid rotation of the pressing part 3703 during normal operation.

[0046] The principle of the embodiment of the present application is that during hoisting operation, the hook 5 of the hoisting machine is connected to the hook 5 outside the cover plate. The hoisting force acts on the cover plate, making it have a tendency to move upward relative to the fixed shell 2. The tension is transmitted to the sliding ring 8 through the guide rod 6, and the sliding ring 8 extrudes the disc spring group 14 in the pre-compressed state, so as to further compress it. During this process, the elastic counterforce generated by the disc spring group 14 corresponds to the hoisting tension it bears, realizing force sensing; at the same time, the compression stroke of the disc spring absorbs overload energy, playing a buffering role.

[0047] When the sliding ring 8 slides upward, if the rubber pad 9 (the first taper surface 11) of the outer wall of the sliding ring 8 enters the second taper surface 12 area of the inner wall of the shell 2, the taper surface cooperation of the two will make the rubber pad 9 contract radially, increase the friction resistance with the shell 2, form self-adaptive damping, and produce a better buffering effect on violent impact.

[0048] The upward movement of the sliding ring 8 pushes the sliding plate 20 to move along the sliding groove 21 through the articulated connecting rod 18, drives the rack 22 to move linearly. The rack 22 drives the driven gear 24 and the input part to rotate. When the hoisting force increases, the input part rotates, the driving spring 31 on the driving wheel 30 is embedded between the first wedge teeth 33 in the driving groove 36 of the driven wheel 32, pushes the driven wheel 32, the output part and the pointer 28 shaft to rotate synchronously, and the pointer 28 fixed at the shaft end of the pointer 28 shaft deflects accordingly, indicating the current tension value on the display disc 25, realizing state visualization.

[0049] When the hoisting force decreases after reaching the peak value, the input part tries to reverse. At this time, the inclined surface of the driving spring 31 and the inclined surface of the first wedge teeth 33 slide relative to each other, and the driving spring 31 itself bends elastically and cannot drive the driven wheel 32 to rotate. At the same time, the second wedge teeth 34 outside the driven wheel 32 and the locking part 3701 of the elastic pawl 37 form one-way locking, ensuring that the pointer 28 shaft and the pointer 28 remain in the position corresponding to the peak tension, realizing mechanical memory of the maximum hoisting tension.

[0050] After hoisting is completed and checked, if resetting is needed, press the external button 41. The button 41 pushes the reset pressure rod 39 to move inward, compresses the reset spring 40, and at the same time, the end of the reset pressure rod 39 pushes the pressing part 3703 of the pawl 37, so that the pawl 37 rotates around the rotating shaft 38, and the locking part 3701 thereof is separated from the second wedge teeth 34. At this time, the reset torsional spring 35 which accumulates torque in advance drives the output part and the pointer 28 shaft to quickly reverse, driving the pointer 28 to return to zero. After the button 41 is released, under the action of the reset spring 40, the reset pressure rod 39 and the pawl 37 return to the original position, preparing for the next recording. Through the cooperative work of the above-mentioned pure mechanical structure, the intelligent perception, buffering protection and historical recording of the whole state of the ring main unit hoisting process are realized.

[0051] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An intelligent primary and secondary integrated ring network box, comprising a box frame (1), characterized in that, At least two diagonal positions of the box frame (1) are respectively provided with hoisting stress sensing modules; The hoisting stress sensing module includes a housing (2), a stress sensing and buffering component, and an indicator component; The shell (2) is fixed to the box frame (1), and its top is provided with a connecting part (3702) for connecting the hoisting equipment; The stress sensing and buffering assembly is disposed in the housing (2) and includes a movable part that is linked with the connecting part (3702) and can slide relative to the housing (2) in response to the hoisting pull force, and an elastic mechanism that applies an elastic restoring force to the movable part; The indicating component includes a transmission mechanism and a display mechanism. The transmission mechanism is connected to the movable part and is used to convert its sliding motion into rotational motion and transmit it to the display mechanism. The display mechanism is provided with a pointer (28) for indicating the force state. The indicating component also includes a locking mechanism to prevent the pointer (28) from rotating when the force is reduced.

2. The intelligent primary and secondary integrated ring network box according to claim 1, characterized in that, The stress sensing and buffering assembly also includes a guiding mechanism; The guiding mechanism includes a guide rod (6) fixedly connected to the movable part, and a sliding ring (8) sleeved on the guide rod (6) and fixedly connected to the guide rod (6); The sliding ring (8) slides in contact with the inner wall of the housing (2) through a friction member with an outer conical surface; the inner wall of the housing (2) is provided with an inner conical surface that corresponds to the outer conical surface. When the sliding ring (8) slides along the force direction to engage with the inner conical surface area, the friction member is radially compressed to increase the sliding friction resistance.

3. The intelligent primary and secondary integrated ring network box according to claim 2, characterized in that, The elastic mechanism includes a disc spring assembly (14) sleeved on the guide rod (6) and a preload member for applying a preload force to the disc spring assembly (14); The disc spring assembly (14) is located between the sliding ring (8) and the limiting structure fixed in the housing (2); the preload includes a mounting plate (15) threaded to the housing (2), an axially movable top plate (16), and a helical spring (17) connecting the mounting plate (15) and the top plate (16), the top plate (16) abutting against the sliding ring (8).

4. The intelligent primary and secondary integrated ring network box according to claim 2, characterized in that, The transmission mechanism includes a connecting rod (18), a sliding plate (20), and a rack (22); One end of the connecting rod (18) is hinged to the sliding ring (8), and the other end is hinged to the sliding plate (20). The sliding plate (20) is slidably disposed in the groove of the housing (2) and fixedly connected to the rack (22).

5. The intelligent primary and secondary integrated ring network box according to claim 4, characterized in that, The display mechanism includes a rotating rod (23), a driven gear (24) fixed to the rotating rod (23) and meshing with the rack (22), and the pointer (28); The rotating rod (23) includes an input part and an output part arranged coaxially; The driven gear (24) is fixed to the input section, and the pointer (28) is fixed to the output section; A one-way transmission mechanism is provided between the input section and the output section.

6. The intelligent primary and secondary integrated ring network box according to claim 5, characterized in that, The unidirectional transmission mechanism includes a drive spring (31) disposed at the end of the input section and a drive groove (36) disposed at the end of the output section and cooperating with the drive spring (31). The drive groove (36) is provided with a first wedge-shaped tooth block (33). The drive spring (31) is configured to push the first wedge-shaped tooth block (33) to drive the output section to rotate synchronously when the input section rotates in the first direction, and to slip against the first wedge-shaped tooth block (33) when the input section rotates in the opposite direction.

7. The intelligent primary and secondary integrated ring network box according to claim 6, characterized in that, The locking mechanism includes a second wedge-shaped tooth block (34) disposed on the output section and a pawl (37) rotatably disposed in the housing (2); The pawl (37) has a locking part (3701) that engages with the second wedge-shaped tooth block (34). When the output part rotates in the first direction, the locking part (3701) slides past the second wedge-shaped tooth block (34). When the output part attempts to rotate in the opposite direction, the locking part (3701) engages with the second wedge-shaped tooth block (34).

8. The intelligent primary and secondary integrated ring network box according to claim 7, characterized in that, It also includes a reset mechanism; The reset mechanism includes an axially movable reset lever (39), a button (41) located at one end of the reset lever (39), and a reset spring (40) sleeved on the reset lever (39); The other end of the reset lever (39) abuts against the drive end of the pawl (37). Pressing the button (41) can drive the pawl (37) to rotate through the reset lever (39), causing its locking part (3701) to disengage from the second wedge-shaped tooth block (34). A reset torsion spring (35) is fitted on the output section. When the pawl (37) disengages, the reset torsion spring (35) drives the output section and the pointer (28) to rotate back to the initial position.

9. The intelligent primary and secondary integrated ring network box according to claim 2, characterized in that, The housing (2) is provided with a limiting ring (13) to limit the maximum sliding stroke of the sliding ring (8) and the moving part.

10. The intelligent primary and secondary integrated ring network box according to claim 1, characterized in that, The housing (2) is provided with an observation window (27), which is sealed with transparent material and faces the pointer (28).

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