A lifting type circuit breaker transfer trolley capable of being quickly disassembled and adjusted in multiple directions

Abstract

The application relates to a lifting type circuit breaker transfer trolley which can be quickly disassembled and adjusted in multiple directions, and belongs to the technical field of circuit breaker transfer trolleys. A control system with a control terminal as a core is introduced on the basis structure of the transfer trolley. The control terminal is preset with a target docking height, an allowable left-right height difference threshold value and an allowable inclination threshold value. A state detection module detects the left-right height of a tray, the inclination of the tray and the braking in-place state. The control terminal sends instructions to a lifting execution module and an interlocking prompt module according to detection signals and preset threshold values, so that the trolley is allowed to lift after braking in place, is stopped or prompted after reaching the target height, is prompted to level and is limited to push in or pull out when the posture exceeds the limit, and the problems that the docking height and posture of the tray of the circuit breaker transfer trolley are difficult to be stable and consistent, and the braking state lacks reliable constraint, so that interference, slippage and poor docking consistency are prone to occur during the pushing-in or pulling-out process are solved.

Description

Technical Field

[0001] This invention belongs to the technical field of circuit breaker transfer vehicles, specifically relating to a lifting circuit breaker transfer vehicle that can be quickly disassembled and adjusted in multiple directions. Background Technology

[0002] In metal-enclosed switchgear in substations and distribution rooms, withdrawable circuit breakers typically require docking and pushing or pulling operations from the ground to the height of the guide rails inside the cabinet during maintenance, replacement, and transfer storage. Existing circuit breaker transfer vehicles generally include a frame, wheels, a pallet, and a lifting mechanism. The lifting mechanism can use structures such as lead screws, scissor forks, chains, or wire ropes to achieve height adjustment. To adapt to different cabinet types and access conditions, there are also solutions that improve the convenience of handling and use by adjusting the pallet guide structure, detachable handles, or detachable parts.

[0003] In practical applications, circuit breaker transport vehicles often operate in narrow passages, doorways, and limited turning radii in substations or distribution rooms. The ground may also exhibit discontinuous features such as slopes, uneven surfaces, drainage ditch covers, or floor joints. Furthermore, switchgear installations may have differences in foundation height, cabinet levelness, and guide rail height. When the transport vehicle carries a heavy circuit breaker and needs precise docking with the cabinet's guide rails, these interference factors can cause lateral or pitch angle deviations and lateral height differences between the pallet and the cabinet. Without reliable identification and interlocking constraints of key states such as pallet posture, docking height, and braking status, on-site adjustments typically rely on visual inspection and experience. This can lead to a chain of risks, including edge interference between the circuit breaker rollers and guide rails during pushing or pulling, increased operating resistance, vehicle slippage under pushing or pulling forces, and decreased stability margin due to pallet center of gravity projection shift. This makes the docking process highly sensitive to ground conditions and personnel skill, making it difficult to maintain consistent docking reliability and safety across different sites and cabinet types. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, this invention provides a lifting circuit breaker transfer vehicle that can be quickly disassembled and adjusted in multiple directions. This solves the problems in the existing technology where, under conditions of limited access in substations or distribution rooms, uneven ground, and slight differences in the height of the cabinet guide rails, the docking height and posture of the circuit breaker transfer vehicle pallet are difficult to maintain in a stable and consistent manner, and the braking state lacks reliable constraints, leading to interference, slippage, and poor docking consistency during the pushing in or pulling out process.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment includes a frame, with wheels at the bottom of the frame, and leg mounting seats at the four corners of the frame, with the legs detachably connected to the leg mounting seats via quick-release connectors. A lifting support frame is mounted on the frame, and a lifting mechanism connects the frame and the lifting support frame and drives its lifting and lowering. A circuit breaker tray is mounted on the lifting support frame, with independent leveling mechanisms on both sides of the tray, respectively connecting the lifting support frame and the corresponding side of the tray. A braking assembly is located at the lower front of the frame. The vehicle also includes a control system, comprising a control terminal, a lifting actuator module connected to the control terminal, and interlocking mechanisms. The system includes a prompting module and a status detection module connected to the control terminal. The status detection module includes a left height detection unit, a right height detection unit, a tilt angle detection unit, and a braking status detection unit. The control terminal presets target docking height parameters, allowable left and right height difference threshold parameters, and allowable tilt angle threshold parameters. Based on the detection signals, the control terminal sends instructions to the lifting execution module and the interlocking prompting module, causing the lifting execution module to drive the lifting when the braking is in place and stop or prompt when the target height is reached. The interlocking prompting module prompts leveling and restricts pushing in or pulling out when the left and right height difference or tilt angle exceeds the limit.

[0007] As a further embodiment of the present invention, the control terminal is also preset with cabinet type selection parameters and at least two sets of docking parameters. The control terminal calls the corresponding target docking height parameters, allowable left and right height difference threshold parameters, and allowable tilt angle threshold parameters according to the cabinet type selection parameters.

[0008] As a further embodiment of the present invention, the control terminal is also preset with lifting start node parameters and lifting stop node parameters. The control terminal sends an instruction to the lifting execution module according to the detection signal of the braking state detection unit and the lifting start node parameters, so that the lifting execution module drives the lifting mechanism to start lifting. The control terminal sends an instruction to the lifting execution module according to the detection signals of the left height detection unit and the right height detection unit and the lifting stop node parameters, so that the lifting execution module stops driving the lifting mechanism.

[0009] As a further embodiment of the present invention, the control terminal is also preset with left and right height difference warning threshold parameters and left and right height difference interlocking threshold parameters. The control terminal sends instructions to the interlocking prompt module according to the detection signals of the left height detection unit and the right height detection unit, so that the interlocking prompt module outputs a leveling prompt when the left and right height difference exceeds the left and right height difference warning threshold parameters, and outputs a prohibition on pushing in or pulling out the interlock when the left and right height difference exceeds the left and right height difference interlocking threshold parameters.

[0010] As a further embodiment of the present invention, the control terminal is also preset with tilt angle warning threshold parameters and tilt angle interlocking threshold parameters. The control terminal sends an instruction to the interlocking prompt module according to the detection signal of the tilt angle detection unit, so that the interlocking prompt module outputs a leveling prompt when the tilt angle exceeds the tilt angle warning threshold parameters, and outputs a prohibition on pushing in or pulling out the interlock when the tilt angle exceeds the tilt angle interlocking threshold parameters.

[0011] As a further embodiment of the present invention, the braking assembly includes an adsorption-type ground brake mechanism and a wheel brake mechanism, the braking state detection unit includes a ground brake position detector and a wheel brake position detector, and the control terminal is also preset with dual brake confirmation parameters. The control terminal sends an instruction to the interlocking prompt module according to the detection signals of the ground brake position detector and the wheel brake position detector and the dual brake confirmation parameters, so that the interlocking prompt module outputs a prohibition on lifting and lowering and a prohibition on pushing in or pulling out the interlock when the dual brake confirmation is not satisfied.

[0012] As a further embodiment of the present invention, the status detection module further includes a docking distance detection unit, and the control terminal is also preset with a docking permission distance parameter. The control terminal sends an instruction to the interlocking prompt module according to the detection signal of the docking distance detection unit and the docking permission distance parameter, so that the interlocking prompt module outputs a push-in or pull-out permission prompt when the docking distance meets the docking permission distance parameter and the left and right height difference and tilt angle do not exceed the limit, and outputs a prohibition on pushing in or pulling out the interlock when the conditions are not met.

[0013] As a further embodiment of the present invention, the lifting support frame is equipped with a mechanical locking mechanism, the status detection module further includes a locking status detection unit, and the control terminal is also preset with locking start node parameters. The control terminal sends an instruction to the interlocking prompt module according to the detection signals of the left height detection unit and the right height detection unit and the locking start node parameters, so that the interlocking prompt module outputs a locking prompt, and outputs a prohibition on pushing in or pulling out the interlock when the locking status detection unit detects that the locking is not in place.

[0014] As a further embodiment of the present invention, the status detection module further includes a travel upper limit detection unit and a travel lower limit detection unit. The control terminal also has preset travel protection parameters. The control terminal sends an instruction to the lifting execution module according to the detection signal of the travel upper limit detection unit or the travel lower limit detection unit and the travel protection parameters, so that the lifting execution module stops driving the lifting mechanism.

[0015] As a further embodiment of the present invention, the state detection module further includes a load detection unit, and the control terminal is also preset with an overload threshold parameter. The control terminal sends instructions to the lifting execution module and the interlocking prompt module according to the detection signal of the load detection unit and the overload threshold parameter, so that the lifting execution module stops driving the lifting mechanism and the interlocking prompt module outputs an overload prompt.

[0016] The beneficial effects of this invention are as follows:

[0017] This invention introduces a control system centered on a control terminal onto the basic structure of a transfer vehicle, transforming on-site interference factors into detectable, comparable, and constrainable control variables. The control terminal presets a target docking height, an allowable left-right height difference threshold, and an allowable tilt angle threshold. A status detection module detects the left-right height of the pallet, the pallet tilt angle, and the braking status. Based on the detection signals and preset thresholds, the control terminal sends commands to the lifting execution module and the interlocking prompt module, enabling lifting and lowering after braking, stopping or prompting upon reaching the target height, and prompting leveling and restricting pushing in or pulling out when the posture exceeds limits. The advantage of this design is that it... The docking process, which relied on visual experience, has been transformed into a parameterized, state-based, and interlocked operational procedure. This reduces fluctuations caused by different ground conditions and different personnel operations, minimizes the risk of pushing and pulling interference and vehicle slippage, and improves the stability and consistency of the docking between the circuit breaker and the switchgear rails. At the same time, it maintains the structural adaptability of quick-release and leveling, solving the problem in existing technologies where, under conditions of limited access in substations or distribution rooms, uneven ground, and slight differences in the height of the cabinet rails, the docking height and posture of the circuit breaker transport vehicle pallet are difficult to maintain in a stable and consistent manner, and the braking state lacks reliable constraints, leading to interference, slippage, and poor docking consistency during the pushing or pulling process. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the braking component structure of the present invention.

[0021] Explanation of key component symbols:

[0022] In the diagram: 1. Frame; 2. Wheels; 3. Leg mounting base; 4. Lifting support frame; 5. Circuit breaker tray; 6. Adsorption-type ground brake mechanism; 7. Wheel braking mechanism. Detailed Implementation

[0023] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0024] Please see Figures 1-2As shown, this embodiment provides a lifting circuit breaker transfer vehicle that can be quickly assembled, disassembled, and adjusted in multiple directions. It includes a frame 1, with wheels 2 at the bottom of the frame 1. Leg mounting seats 3 are located at the four corners of the frame 1, and the legs are detachably connected to the leg mounting seats 3 via quick-release connectors. A lifting support frame 4 is mounted on the frame 1. A lifting mechanism connects the frame 1 and the lifting support frame 4 and drives its lifting and lowering. A circuit breaker tray 5 is mounted on the lifting support frame 4. Independent leveling mechanisms are located on the left and right sides of the tray and are respectively connected to the corresponding sides of the lifting support frame 4 and the tray. A braking assembly is located at the lower front of the frame 1. The system also includes a control system, which includes a control terminal and a control terminal... The system includes a lifting execution module and an interlocking prompt module, as well as a status detection module connected to the control terminal. The status detection module includes a left height detection unit, a right height detection unit, a tilt angle detection unit, and a braking status detection unit. The control terminal presets target docking height parameters, allowable left and right height difference threshold parameters, and allowable tilt angle threshold parameters. Based on the detection signals, the control terminal sends instructions to the lifting execution module and the interlocking prompt module, causing the lifting execution module to drive the lifting when braking is in place and stop or prompt when the target height is reached. The interlocking prompt module prompts leveling and restricts pushing in or pulling out when the left and right height difference or tilt angle exceeds the limit.

[0025] To address the issues in existing technologies where, in substations or distribution rooms, access is limited, the ground is uneven, and there are slight differences in the height of the cabinet guide rails, the docking height and posture of the circuit breaker transfer vehicle pallet are difficult to maintain consistently, and the braking state lacks reliable constraints, leading to interference, slippage, and poor docking consistency during the pushing or pulling process, this embodiment introduces a control system centered on a control terminal on top of the transfer vehicle's basic structure. On-site interference factors are transformed into detectable, comparable, and constrainable control variables. The control terminal presets a target docking height, an allowable left-right height difference threshold, and an allowable tilt angle threshold. The status detection module monitors the left and right sides of the pallet respectively. Height, tray tilt angle, and braking status are detected. The control terminal sends instructions to the lifting execution module and interlocking prompt module based on the detection signals and preset thresholds. This enables lifting and lowering to be allowed after braking is in place, stopping or prompting when the target height is reached, and prompting leveling and restricting pushing in or pulling out when the posture exceeds the limit. The advantages of this design are: it transforms the docking process, which relies on visual experience, into a parameterized, state-based, and interlocked operation process, reducing fluctuations caused by different ground conditions and different personnel operations, reducing pushing and pulling interference and vehicle slippage risks, improving the stability and consistency of the docking between the circuit breaker and the switch cabinet rail, while still maintaining the structural adaptability of quick-release and leveling.

[0026] It is worth mentioning that, in one embodiment, the lifting mechanism preferably adopts a ball screw driven lifting module to replace flexible transmission or suspension structures such as steel wire ropes or cables. This lifting module may include a ball screw, a ball nut pair that mates with the ball screw, a support component for axial or radial support and positioning of the ball screw, such as a bearing housing, and a drive component (which may be a manual or electric operating handle) connected to the ball screw or ball nut pair. The ball screw is fixedly or rotatably mounted between the frame 1 and the lifting support frame 4. When the drive component drives the ball screw to rotate relative to the ball nut pair, the balls circulate and roll within the raceways of the screw and nut, rotating the ball screw. The rotational motion is converted into the linear lifting displacement of the lifting support frame 4. Since rolling friction replaces sliding friction, the transmission efficiency is high, the lifting process is smooth, and the displacement control accuracy is high. The load can be distributed by multiple balls, resulting in more uniform force distribution and better rigidity. This is beneficial for maintaining the stability of the pallet lifting and lowering when carrying a large mass circuit breaker and for facilitating precise adjustment of the docking height. At the same time, compared with the commonly used cable drive structure, this embodiment avoids the safety risk of the circuit breaker falling due to the sudden failure of the load due to cable fatigue wear and breakage caused by the cable. It can also be used in conjunction with the braking component to achieve reliable height maintenance and secondary anti-fall safety protection after the lifting is in place.

[0027] In application scenarios where the same transfer vehicle can accommodate multiple cabinet types, the guide rail height, docking height, and allowable attitude deviation range differ between different switchgear. Manual switching settings require repeated parameter input, and incorrect parameter selection or omissions can lead to decreased docking consistency and mismatches between leveling prompts and interlocking thresholds. To avoid these problems, in one embodiment, the control terminal is also pre-set with cabinet type selection parameters and at least two sets of docking parameters. The control terminal calls the corresponding target docking height parameters, allowable left-right height difference threshold parameters, and allowable tilt angle threshold parameters based on the cabinet type selection parameters. By pre-setting cabinet type selection parameters and at least two sets of docking parameters in the control terminal, the control terminal can directly call the corresponding target docking height and threshold parameters based on the cabinet type selection. This design solidifies the cabinet type differences into an optional parameter set, avoids repeated input, reduces human setting errors, and ensures that the same equipment maintains consistent height judgment and attitude interlocking boundaries when switching between different cabinet types, improving on-site adaptation efficiency and docking stability. The circuit breaker tray 5 is equipped with independent leveling mechanisms on both the left and right sides, which are screw and nut leveling mechanisms. The screw of the leveling mechanism is rotatably connected to the lifting support frame 4, and the nut is connected to the corresponding side of the circuit breaker tray 5. The height of one side of the tray can be adjusted by driving the screw to rotate. The lifting mechanism is at least one set of scissor-type lifting arms or screw lifting modules. The lower end of the lifting arm is connected to the frame 1, and the upper end is connected to the lifting support frame 4. The lifting support frame 4 is driven to rise and fall by driving the scissor arms to open and close or the screw to rotate.

[0028] Because the start and stop of the lifting action are inconsistent in on-site operation, and the lack of unified node constraints between braking confirmation and lifting start / stop, fluctuations in the timing of lifting start and stop will amplify the docking height error. Furthermore, inconsistent stopping actions when the docking height approaches the target position will increase the number of repeated fine-tuning adjustments. Therefore, in one embodiment, the control terminal also presets lifting start node parameters and lifting stop node parameters. The control terminal sends instructions to the lifting execution module based on the detection signal from the braking status detection unit and the lifting start node parameters, causing the lifting execution module to drive the lifting mechanism to start lifting. The control terminal then uses the left height detection unit and right height detection unit... The detection signal and lifting stop node parameters of the element send instructions to the lifting execution module, causing the lifting execution module to stop driving the lifting mechanism. The lifting start node parameters and lifting stop node parameters are preset in the control terminal, and the braking status detection signal is used as the start condition, and the pallet left and right height detection signal is used as the stop criterion. The control terminal sends start and stop commands to the lifting execution module accordingly. This design transforms the lifting action from a sense-based start and stop to a start and stop constrained by node parameters, so that the lifting starts after the safety braking is confirmed and stops uniformly when the height meets the stop node requirements, reducing height overshoot and frequent correction, and improving the consistency and operational efficiency of the docking height control.

[0029] Furthermore, due to the gradual nature of the left-right height difference caused by uneven ground, local slope, and slight differences in the cabinet foundation, single threshold control is prone to insufficient alerts or overly strict restrictions, failing to balance early correction with safety constraints for severe deviations. In one embodiment, the control terminal also presets left-right height difference warning threshold parameters and left-right height difference interlocking threshold parameters. The control terminal sends instructions to the interlocking prompt module based on the detection signals from the left and right height detection units, causing the interlocking prompt module to output a leveling prompt when the left-right height difference exceeds the left-right height difference warning threshold parameters. When the left and right height difference exceeds the left and right height difference interlocking threshold parameter, the system outputs an interlock prohibiting pushing in or pulling out. By preset the left and right height difference warning threshold parameter and the left and right height difference interlocking threshold parameter in the control terminal, the control terminal triggers leveling prompts and prohibits pushing in or pulling out interlocks in stages based on the left and right height detection signals. This design adopts an engineered approach of graded warning and interlocking. It promptly prompts leveling in the stage of slight deviation and forcibly restricts pushing and pulling in the stage of severe deviation. This not only improves the timeliness of correction, but also prevents interference and impact caused by hard pushing and pulling when the deviation is too large, thereby improving the docking safety margin and on-site operability.

[0030] Furthermore, the pitch and roll angles of the pallet change due to the influence of ground slope, pallet load distribution, and docking push-pull force. The attitude deviation also exhibits a gradual characteristic. Without graded boundaries, it is difficult to simultaneously achieve timely correction and strict protection. In one embodiment, the control terminal is also preset with tilt angle warning threshold parameters and tilt angle interlocking threshold parameters. The control terminal sends instructions to the interlocking prompt module based on the detection signal from the tilt angle detection unit, causing the interlocking prompt module to output a leveling prompt when the tilt angle exceeds the tilt angle warning threshold parameter, and to output a prohibition on pushing in or pulling out the interlock when the tilt angle exceeds the tilt angle interlocking threshold parameter. The control terminal presets tilt angle warning threshold parameters and tilt angle interlocking threshold parameters. Based on the tilt angle detection signal, the control terminal first outputs a leveling prompt, and then outputs a prohibition on pushing in or pulling out the interlock when the tilt angle exceeds the interlocking threshold. This design extends attitude control from single-point judgment to a graded strategy, so that operators can receive clear prompts when the deviation is still adjustable, and automatically restrict push-pull when the deviation reaches the risk range, reducing the stability risks caused by interference at the edge of the roller guide rail and center of gravity shift.

[0031] Furthermore, due to the significant horizontal thrust during the pushing or pulling process, the stability of a single braking method fluctuates under different ground materials, ground cleanliness, and changes in force direction. When there is a lack of dual confirmation of the braking position, the vehicle's slippage trend is difficult to restrain in a timely manner. In one embodiment, the braking assembly includes an adsorption-type ground brake mechanism 6 and a wheel brake mechanism 7. The braking state detection unit includes a ground brake position detector and a wheel brake position detector. The control terminal also has preset dual braking confirmation parameters. The control terminal determines the braking state based on the detection signals from the ground brake position detector and the wheel brake position detector, as well as the dual braking confirmation parameters. The system sends a command to the interlocking prompt module based on the parameters. When the dual braking confirmation is not met, the interlocking prompt module outputs a prohibition on lifting and lowering and a prohibition on pushing in or pulling out the interlock. Here, the braking components are limited to the adsorption-type ground brake mechanism 6 and the wheel brake mechanism 7. Ground brake position detector and wheel brake position detector are set. The control terminal presets dual braking confirmation parameters and outputs a prohibition on lifting and lowering and a prohibition on pushing in or pulling out the interlock based on these parameters. This design forms a safety chain of dual braking and position determination through structural redundancy and state confirmation, which significantly reduces the risk of vehicle slippage and docking instability during pushing and pulling, and improves the stability and controllability of the pushing in or pulling out process.

[0032] In addition to height and posture, the docking process is also affected by the relative distance between the transfer vehicle and the front end of the cabinet. Pushing in or pulling out when the distance deviates from the appropriate range can introduce impact, uneven loading, and guide rail misalignment, increasing the probability of roller edge interference and amplifying pushing and pulling resistance. To address this, in one embodiment, the status detection module also includes a docking distance detection unit. The control terminal also has preset docking permission distance parameters. The control terminal sends instructions to the interlocking prompt module based on the detection signal from the docking distance detection unit and the docking permission distance parameters, causing the interlocking prompt module to respond when the docking distance meets the docking permission distance parameters and the horizontal and vertical alignment is within acceptable limits. When the height difference and tilt angle are within the limits, the system outputs a push-in or pull-out permission prompt; if these conditions are not met, it outputs a prohibition on push-in or pull-out interlock. By adding a docking distance detection unit and pre-setting docking permission distance parameters in the control terminal, the control terminal outputs a push-in or pull-out permission prompt when the docking distance meets the permission range and the left and right height difference and tilt angle are within the limits; if these conditions are not met, it outputs a prohibition on push-in or pull-out interlock. This design incorporates the docking distance into the permission conditions, making the push-pull action based on the comprehensive satisfaction of distance, attitude, and height, reducing hard collisions during docking, off-center push-pull, and guide rail jamming, and improving the stability and repeatability of the docking action.

[0033] Furthermore, once the pallet reaches the docking height, transmission clearance of the lifting mechanism, external pushing and pulling disturbances, and long-term wear can cause fluctuations in the reliability of height maintenance. Directly entering the pushing or pulling position without locking the pallet in place will amplify the risk of falls and impacts. In one embodiment, the lifting support frame 4 is equipped with a mechanical locking mechanism, and the status detection module also includes a locking status detection unit. The control terminal also has preset locking start node parameters. The control terminal sends a command to the interlocking prompt module based on the detection signals from the left and right height detection units and the locking start node parameters, causing the interlocking prompt module to output a locking signal. The system provides a prompt and outputs a prohibition on pushing in or pulling out interlock when the locking status detection unit detects that the locking is not in place. By setting a mechanical locking mechanism on the lifting support frame 4 and recognizing the locking status through the locking status detection unit, and by preset locking start node parameters in the control terminal, the control terminal outputs a locking prompt when the height meets the node conditions, and outputs a prohibition on pushing in or pulling out interlock when the locking is not in place. This design forms a process constraint of locking confirmation after the in-place prompt before pushing and pulling, which improves the reliability of maintaining the docking height and reduces the risk of height sinking and circuit breaker falling caused by pushing and pulling disturbances.

[0034] It should be noted that during on-site operation, there may be instances of misoperation of the lifting stroke and misjudgment of the limit position. Exceeding the travel boundary of the mechanism can cause mechanical interference, abnormal stress on transmission components, and structural damage, further affecting docking accuracy and lifespan. To address this, in one embodiment, the status detection module also includes an upper travel limit detection unit and a lower travel limit detection unit. The control terminal also has preset travel protection parameters. The control terminal sends a command to the lifting execution module based on the detection signals from the upper or lower travel limit detection unit and the travel protection parameters, causing the lifting execution module to stop driving the lifting mechanism. By adding upper and lower travel limit detection units and preset travel protection parameters in the control terminal, the control terminal issues a stop driving command to the lifting execution module based on the limit detection signal. This design achieves overtravel protection through hard boundary detection and stop control, reducing structural impact and transmission damage caused by misoperation, and ensuring the long-term stability and docking accuracy maintenance capability of the lifting mechanism.

[0035] Following the above embodiments, the weight differences of different circuit breaker models and the load variations caused by the addition of additional tooling can lead to fluctuations in the load-bearing boundary of the lifting mechanism. Continuing to lift under overload conditions can easily cause damage to transmission components and a decrease in stability, thereby amplifying the docking risk. In one embodiment, the status detection module also includes a load detection unit, and the control terminal is also preset with an overload threshold parameter. The control terminal sends instructions to the lifting execution module and the interlocking warning module based on the detection signal from the load detection unit and the overload threshold parameter, causing the lifting execution module to stop driving the lifting mechanism and the interlocking warning module to output an overload warning. By adding a load detection unit and preset overload threshold parameters in the control terminal, the control terminal simultaneously sends a stop command to the lifting execution module and outputs an overload warning to the interlocking warning module based on the load detection signal. This design establishes a visual and constrainable mechanism for the load-bearing boundary using a load threshold, avoiding damage and instability to the mechanism caused by continuing to lift under overload conditions, improving equipment safety and lifespan, and enhancing the general reliability under different circuit breaker configurations.

[0036] Working principle and usage process of this invention:

[0037] The control system, centered on the control terminal, transforms key factors such as height, attitude, and braking status during the on-site docking process into detectable and controllable parameters. The control terminal presets parameters such as the target docking height, allowable left-right height difference threshold, and allowable tilt angle threshold. The status detection module monitors the pallet's left-right height, tilt angle, and braking status in real time. Based on the detection signals and preset thresholds, the control terminal sends commands to the lifting execution module and the interlocking prompt module. This enables automatic lifting after braking, automatic stopping or prompting upon reaching the target height, and prompts for leveling and restricts pushing in or pulling out when the attitude exceeds limits. Thus, the experience-dependent docking process is transformed into a parameterized and interlocked standardized procedure.

[0038] The operator pushes the transfer cart to the switch cabinet. After starting the control system, the braking status detection unit confirms that the brakes are in place, and the lifting execution module automatically drives the pallet to rise and fall to the preset target height. Simultaneously, the system monitors the left-right height difference and tilt angle of the pallet in real time. If these exceed the warning threshold, a leveling prompt is issued; if they exceed the interlock threshold, pushing in or pulling out operations are prohibited. Only after all preset conditions are met does the system output a push-in or pull-out permission prompt, allowing the operator to safely connect the circuit breaker to the internal guide rails of the cabinet. The entire process, through status detection and interlock control, significantly improves the consistency and safety of the connection.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment, characterized in that, The vehicle includes a frame and a lifting mechanism. The frame has wheels at the bottom and leg mounting seats at the four corners. The legs are detachably connected to the leg mounting seats via quick-release connectors. The frame has a lifting support frame. The lifting mechanism connects the frame and the lifting support frame and drives them to rise and fall. The lifting support frame has a circuit breaker tray. The left and right sides of the circuit breaker tray have independent leveling mechanisms that connect the lifting support frame and the corresponding sides of the circuit breaker tray, respectively. A braking assembly is located at the lower front of the frame. It also includes a control system, which includes a control terminal, a lifting execution module and an interlocking prompt module connected to the control terminal, and a status detection module connected to the control terminal. The status detection module includes a left height detection unit, a right height detection unit, a tilt angle detection unit, and a braking status detection unit. The control terminal presets target docking height parameters, allowable left and right height difference threshold parameters, and allowable tilt angle threshold parameters. The control terminal sends instructions to the lifting execution module and the interlocking prompt module based on the detection signals, so that the lifting execution module drives the lifting when the braking is in place and stops or prompts when the target height is reached, and the interlocking prompt module prompts leveling and restricts pushing in or pulling out when the left and right height difference or tilt angle exceeds the limit. The control terminal is also preset with left and right height difference warning threshold parameters and left and right height difference interlocking threshold parameters. The control terminal sends instructions to the interlocking prompt module according to the detection signals of the left height detection unit and the right height detection unit, so that the interlocking prompt module outputs a leveling prompt when the left and right height difference exceeds the left and right height difference warning threshold parameters, and outputs a prohibition on pushing in or pulling out the interlock when the left and right height difference exceeds the left and right height difference interlocking threshold parameters. The control terminal is also preset with tilt angle warning threshold parameters and tilt angle interlocking threshold parameters. The control terminal sends an instruction to the interlocking prompt module according to the detection signal of the tilt angle detection unit, so that the interlocking prompt module outputs a leveling prompt when the tilt angle exceeds the tilt angle warning threshold parameter, and outputs a prohibition on pushing in or pulling out the interlock when the tilt angle exceeds the tilt angle interlocking threshold parameter. The braking assembly includes an adsorption-type ground brake mechanism and a wheel brake mechanism. The braking status detection unit includes a ground brake position detector and a wheel brake position detector. The control terminal is also preset with dual brake confirmation parameters. The control terminal sends an instruction to the interlocking prompt module based on the detection signals of the ground brake position detector and the wheel brake position detector and the dual brake confirmation parameters. This causes the interlocking prompt module to output a prohibition on lifting and lowering and a prohibition on pushing in or pulling out the interlock when the dual brake confirmation is not satisfied. The status detection module also includes a docking distance detection unit. The control terminal is also preset with a docking permission distance parameter. The control terminal sends an instruction to the interlocking prompt module according to the detection signal of the docking distance detection unit and the docking permission distance parameter. When the docking distance meets the docking permission distance parameter and the left and right height difference and tilt angle do not exceed the limit, the interlocking prompt module outputs a push-in or pull-out permission prompt. When the conditions are not met, it outputs a prohibition on pushing in or pulling out the interlock.

2. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The control terminal is also preset with cabinet type selection parameters and at least two sets of docking parameters. The control terminal calls the corresponding target docking height parameters, allowable left and right height difference threshold parameters, and allowable tilt angle threshold parameters according to the cabinet type selection parameters.

3. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The control terminal is also pre-set with lifting start node parameters and lifting stop node parameters. The control terminal sends an instruction to the lifting execution module based on the detection signal of the braking state detection unit and the lifting start node parameters, so that the lifting execution module drives the lifting mechanism to start lifting. The control terminal sends an instruction to the lifting execution module based on the detection signals of the left height detection unit and the right height detection unit and the lifting stop node parameters, so that the lifting execution module stops driving the lifting mechanism.

4. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The lifting support frame is equipped with a mechanical locking mechanism. The status detection module also includes a locking status detection unit. The control terminal is also preset with locking start node parameters. The control terminal sends an instruction to the interlocking prompt module according to the detection signals of the left height detection unit and the right height detection unit and the locking start node parameters, so that the interlocking prompt module outputs a locking prompt. When the locking status detection unit detects that the locking is not in place, it outputs that the interlock should not be pushed in or pulled out.

5. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The status detection module also includes an upper limit travel detection unit and a lower limit travel detection unit. The control terminal is also preset with travel protection parameters. The control terminal sends a command to the lifting execution module according to the detection signal of the upper limit travel detection unit or the lower limit travel detection unit and the travel protection parameters, so that the lifting execution module stops driving the lifting mechanism.

6. The lifting circuit breaker transfer vehicle with quick assembly / disassembly and multi-directional adjustment according to claim 1, characterized in that, The status detection module also includes a load detection unit. The control terminal is also preset with an overload threshold parameter. The control terminal sends instructions to the lifting execution module and the interlocking prompt module according to the detection signal of the load detection unit and the overload threshold parameter, so that the lifting execution module stops driving the lifting mechanism and the interlocking prompt module outputs an overload prompt.

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