Transformer base channel steel connecting device and integrated intelligent control method

Abstract

The invention discloses an integrated intelligent control method for a transformer base channel steel connecting device, and the method comprises the steps: installing a pressure sensor on a transformer connecting device, scanning a transformer nameplate two-dimensional code through a local processing unit (EPU), and inputting the capacity (S) and the total mass (M) of a transformer; automatically calculating a target pre-tightening force interval through a preset algorithm model and the recorded transformer capacity (S) and total mass (M); during installation by constructors; according to the method, parameters are input through the EPU, the pre-tightening force interval is accurately calculated, and the pressure change is monitored in real time, so that traditional manual experience operation is replaced, the installation time consumption is greatly shortened, the rework rate is reduced, standardized installation can be completed by non-professionals, dynamic bending strength checking can be carried out based on actual working condition data collected in the installation process, and the installation efficiency is improved. And the structure failure risk is accurately avoided, and the equipment installation and operation safety is guaranteed from the source.

Description

Technical Field

[0001] This invention relates to the field of transformer equipment technology, and in particular to an integrated intelligent control method for a transformer base channel steel connection device. Background Technology

[0002] In the construction and operation and maintenance of power distribution networks, transformers are core equipment, and the stability, safety and efficiency of their installation are directly related to the reliable operation of the power grid. The fixing of transformers usually involves connecting the channel steel base at its bottom to the crossarm channel steel on the pole.

[0003] However, due to the large number of transformer manufacturers in the industry, the hole spacing and size specifications of their base channel steel vary. At the same time, the crossarms used in different line projects also differ in terms of channel steel thickness and installation height. The base channel steel is difficult to adapt to the size differences of different manufacturers, different models of transformer bases, and different specifications of crossarms, resulting in complicated preliminary preparations and low construction flexibility. Furthermore, the fixing process and subsequent status monitoring rely entirely on manual inspections, making it impossible to monitor and provide early warnings for the key parameter of fastening force in real time, remotely, and visually. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that the fixing process and subsequent status monitoring rely entirely on manual inspection, and it is impossible to monitor and warn of the key parameter of fastening force in real time, remotely and visually.

[0005] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes an integrated intelligent control method, which includes installing a pressure sensor on the transformer connection device, scanning the transformer nameplate QR code through the local processing unit (EPU), recording the transformer capacity (S) and total mass (M), and calculating the target preload range; During installation, the local processing unit (EPU) reads the current pressure value collected by the pressure sensor in real time, and records the actual installation span (L) formed during the installation process and the distance (a, b) from the point of application of the concentrated force corresponding to the transformer weight to the support point. The horizontal telescopic frame is simplified into a simply supported beam model, and the maximum bending moment of the frame is calculated. The maximum bending stress is obtained by passing the preset section modulus (W) of the main load-bearing channel steel. Based on the matching relationship between the current pressure value and the target preload range, as well as the pressure change rate, the corresponding alarm prompts are triggered until the installation is completed and a stable installation pressure is formed; The maximum bending stress is compared with the allowable stress of the material, and the structural strength is verified by the safety factor. If the strength meets the standard, the subsequent monitoring process is carried out. The original pressure data sequence is obtained by collecting pressure sensor data at a preset frequency, and then a smooth data sequence is obtained by processing the moving average. Based on the installation stability pressure, a first-level early warning threshold is set. Trend analysis and abrupt change detection are performed on the smooth data sequence to achieve a second-level early warning. When the monitoring data triggers the early warning condition, the EPU activates an audible and visual alarm and performs remote data transmission.

[0006] In a preferred embodiment of the integrated intelligent control method of the present invention: the preset algorithm model includes a target preload calculation formula: The preload range is [ , ],in, ; ; Preload for the target; For safety factor; This refers to the total mass of the transformer. It is the acceleration due to gravity; For the frictional force at the mating surfaces; This is the lower limit of the preload force; This is the upper limit of the preload force; This is the lower limit threshold coefficient; This is the upper limit threshold coefficient.

[0007] In a preferred embodiment of the integrated intelligent control method of the present invention: the processing unit (EPU) reads the pressure sensor data P_current(t) in real time; P_current(t) < This indicates that the bolts are not tight enough; P_current(t) is greater than This indicates that the bolts are too tight.

[0008] In a preferred embodiment of the integrated intelligent control method of the present invention: the formula for calculating the maximum bending moment is as follows: ; The maximum bending moment that a horizontal telescopic frame (simply supported beam model) can withstand; This is the distance from the point of application of the concentrated force corresponding to the weight of the transformer to one end of the support of the simply supported beam. The distance from the point of application of the concentrated force to the support at the other end of the simply supported beam; This refers to the actual installation span of the horizontal telescopic frame.

[0009] In a preferred embodiment of the integrated intelligent control method of the present invention, the preset frequency is once per hour.

[0010] The beneficial effects of this method are as follows: by inputting parameters through EPU, accurately calculating the preload range and monitoring pressure changes in real time, it not only replaces traditional manual experience-based operations, significantly shortens installation time and reduces rework rate, and enables standardized installation that can be completed by non-professionals, but also allows for dynamic bending strength verification based on actual working condition data collected during installation, accurately avoiding structural failure risks and ensuring the safety of equipment installation and operation from the source.

[0011] Given the aforementioned issues, such as the difficulty in adapting the base channel steel to the size differences of transformer bases from different manufacturers and of different models, as well as the crossarms of different specifications, leading to complex preliminary preparations and low construction flexibility.

[0012] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes an integrated intelligent control method, which includes a guide rail module, on which a locking module, a limiting module is disposed, a pressure sensing module and a vertical screw are disposed on the guide rail module; The guide rail module and vertical screw work together to effectively adapt to various types of transformers and on-site working conditions.

[0013] In a preferred embodiment of the integrated intelligent control method for the transformer base channel steel connection device of the present invention: the guide rail module includes a main beam, a groove opened on the main beam, a slider disposed inside the groove, and an extension beam fixedly connected to the slider.

[0014] In a preferred embodiment of the integrated intelligent control method for the transformer base channel steel connection device of the present invention: the locking module includes a mounting plate disposed at the bottom end of the main beam, mounting bolts disposed on the mounting plate, a fastening block slidably connected to the inside of the mounting plate, a rotating handle threadedly connected to the mounting plate, and a fastening screw fixedly connected to the rotating handle.

[0015] In a preferred embodiment of the integrated intelligent control method for the transformer base channel steel connection device of the present invention: the limiting module includes a limiting groove opened inside the slide groove, a limiting block slidably connected inside the limiting groove, and a fixing bolt disposed on the limiting block.

[0016] In a preferred embodiment of the integrated intelligent control method for the transformer base channel steel connection device of the present invention: the pressure sensing module includes a connecting pad, a spring pad disposed on the connecting pad, a mounting pad fixedly connected to the spring pad, and a pressure sensor body fixedly connected to the mounting pad.

[0017] The beneficial effects of this invention are as follows: the stepless extension and retraction of the device is achieved through the cooperation of the slider and the groove, and then the bidirectional adjustment of the device is achieved through the lifting of the vertical screw, thereby enabling the device to use transformers of various sizes, thus increasing the practicality and versatility of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 The overall structural diagram of the integrated intelligent control method for the transformer base channel steel connection device is shown. Figure 2 A guide rail module structure diagram of an integrated intelligent control method for a transformer base channel steel connection device is shown. Figure 3 The diagram shows the limiting module structure of the integrated intelligent control method for the transformer base channel steel connection device; Figure 4 A structural diagram of the locking module of the integrated intelligent control method for the transformer base channel steel connection device is shown; Figure 5 A structural diagram of the pressure sensing module of the integrated intelligent control method for the transformer base channel steel connection device is shown. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0021] Reference Figure 1 This embodiment provides an integrated intelligent control method, which includes installing a pressure sensor on the transformer connection device, scanning the transformer nameplate QR code through the local processing unit (EPU), and recording the transformer capacity (S) and total mass (M). Furthermore, the target preload range is automatically calculated using a preset algorithm model and the input transformer capacity (S) and total mass (M); During installation, the local processing unit (EPU) reads the current pressure value collected by the pressure sensor in real time and records the actual installation span (L) formed during the installation process and the distance (a, b) from the point of application of the concentrated force corresponding to the transformer weight to the fulcrum. The preset algorithm model includes the target preload calculation formula: ; The preload range is [ , ],in, ; .

[0022] Preferably, in the formula, Gravitational acceleration (9.8 m / s²); μ: Coefficient of friction of the mating surface (preset to a typical value, such as 0.15); k: Safety factor (usually 1.5~2.0, considering dynamic loads such as wind load and vibration); α, β: Threshold coefficients (e.g., α=0.8, β=1.2, defining the safe operating range).

[0023] Based on the matching relationship between the current pressure value and the target preload range, as well as the pressure change rate, the corresponding alarm prompts are triggered until the installation is completed and a stable installation pressure is formed; The processing unit (EPU) reads the pressure sensor data P_current(t) in real time; P_current(t) < This indicates that the bolts are not tight enough; P_current(t) is greater than This indicates that the bolts are too tight.

[0024] Preferably, the rate alarm is triggered by calculating the pressure change rate dP / dt. If |dP / dt| exceeds a set threshold... If the load is 50 kN / s, an alarm will sound immediately, indicating "tightening too fast," to prevent the impact load from damaging the threads or the sensor.

[0025] By recording the actual installation span (L) and the location of the concentrated force application point, the horizontal telescopic frame is simplified into a simply supported beam model; The maximum bending moment of the frame is calculated using a simply supported beam model, the upper limit of the target preload range, and the distances (a, b) from the point of application of the concentrated force to the two supports. Specifically, based on the actual installation span L and the location of the stress point (a, b), the maximum bending moment that the frame may withstand is calculated. The formula for calculating the maximum bending moment is: Based on the preset section modulus (W) of the main load-bearing channel steel, and combined with the calculated maximum bending moment, the maximum bending stress is obtained; The moment of inertia I and section modulus W of the main load-bearing channel steel (these are constants preset in the algorithm according to the channel steel model) are used to calculate the maximum bending stress. : Furthermore, the maximum bending stress is compared with the allowable stress of the material, and the structural strength is verified by the safety factor. If the strength meets the standard, the process proceeds to the next monitoring stage. Among them, comparison The allowable stress [σ] of the selected material (e.g., 6061-T6 aluminum alloy) is calculated by dividing the yield strength by a safety factor, e.g., [σ] = 276 MPa / 1.5 ≈ 184 MPa. After the structural strength verification is passed, the system automatically switches to long-term monitoring mode and collects pressure sensor data at a preset frequency. Once installed, the system automatically switches to long-term monitoring mode, reducing the sampling frequency to once per hour.

[0026] Furthermore, the collected raw pressure data sequence is subjected to moving average filtering to obtain a smoothed data sequence; Specifically, a moving average filter is applied to the original pressure data sequence {P_i} to obtain a smoothed sequence. To eliminate momentary interference.

[0027] Furthermore, based on the installation stability pressure, a first-level early warning threshold is set, and trend analysis and abrupt change detection are performed on the smooth data sequence to achieve a second-level early warning. Among them, the first-level early warning is based on the stable pressure at the time of installation completion. Set the alarm threshold. Typically, the lower alarm limit is... (e.g., γ=0.7), alarm limit = δ * (e.g., δ=1.3), if If the value exceeds this range, a Level 1 alarm will be triggered.

[0028] Secondly, a Level II warning applies to the period of time (e.g., 24 hours). The sequence is linearly fitted to obtain the trend slope. If the slope is continuously negative and the absolute value exceeds the threshold, it indicates that the preload is slowly decaying, triggering a "loosening trend" warning.

[0029] In addition, mutation detection: calculate the difference between adjacent sampling points: ΔP = - Preferably, if |ΔP| is greater than a set mutation threshold (e.g., 0.2 * If the stress is not caused by a drastic change in ambient temperature (determined by correlating temperature sensor data), then a "pressure surge" alarm will be triggered, indicating that there may be an unexpected structural impact or severe loosening.

[0030] When the monitoring data triggers the early warning conditions, the EPU activates an audible and visual alarm and remotely transmits the data.

[0031] In summary: By scanning the transformer nameplate with the EPU to input parameters, combined with pressure sensors, the target preload range is calculated according to a preset algorithm. During construction, pressure values ​​are monitored in real time, and installation dimensions are recorded. Alarms are triggered based on pressure matching degree and rate of change until a stable pressure is reached. Then, the maximum bending stress is calculated using a simply supported beam model, and the structural strength is verified by comparing it with the allowable stress of the material. Once the standard is met, long-term monitoring begins. The collected data is filtered and processed, and a first-level early warning threshold is set based on stable pressure. A second-level early warning is achieved through trend analysis and abrupt change detection. When an early warning is triggered, the EPU issues an audible and visual alarm and transmits data remotely.

[0032] Reference Figures 1-5 As an optional embodiment, a transformer base channel steel connection device is provided, including a guide rail module 1, on which a locking module 2, a limiting module 3 is provided on the guide rail module 1, and a pressure sensing module 4 and a vertical screw 5 are provided on the guide rail module 1; The guide rail module 1 is used to enable stepless adjustment of the device, allowing it to adapt to transformer bases of various sizes. The locking module 2 is used to lock the guide rail module 1, thereby fixing the position of the adjusted guide rail and preventing the device parts from moving after installation, which would affect the normal operation of the equipment.

[0033] Secondly, the limiting module 3 is set to limit the movement distance of the guide rail module 1 to prevent excessive displacement of the guide rail module 1 from causing the parts to separate. The pressure sensing module 4 is set to monitor the pressure changes on the device in real time. During installation, it can remind the on-site staff to check the tightness of the bolts to prevent the bolts from being too tight or too loose. At the same time, after installation, it can also monitor the pressure curve of the device to indicate in advance whether there is any loosening or breakage inside the device.

[0034] Preferably, the vertical screw 5 is used to adjust the device vertically, preventing the transformer from tilting due to height differences during installation, increasing the equipment's environmental adaptability, saving installation time, and simplifying complex installation procedures.

[0035] Preferably, the equipment is installed at the bottom of the transformer by connecting the vertical drop bar and the variable pressure base. During this process, the horizontal stepless extension and retraction of the guide rail module 1 allows the equipment to adapt to most existing transformers, solving the problem that only one type of support can be used for one type of transformer.

[0036] In summary, during transformer installation, the horizontal stepless extension and retraction of the guide rail module 1 allows the device to adapt to most transformers on the market. Furthermore, the vertical adjustment via the vertical screw 5 allows the device to be installed in different working environments, increasing its versatility and adaptability. Additionally, the pressure sensor module 4 provides real-time monitoring of bolt tightness during installation, preventing over-tightening or under-tightening. After installation, the pressure sensor module 4 can also monitor and provide real-time pressure alerts, triggering an alarm in case of sudden pressure changes, allowing staff to quickly understand the situation.

[0037] Preferably, the guide rail module 1 and the vertical screw 5 work together to effectively adapt to various types of transformers and on-site working conditions, eliminating the reliance on customized brackets and increasing the practicality of the equipment.

[0038] Reference Figures 2-5 As an optional embodiment, a transformer base channel steel connection device is provided, including a guide rail module 1 including a main beam 11, a slide groove 12 opened on the main beam 11, a slider 13 disposed inside the slide groove 12, and an extension beam 14 fixedly connected to the slider 13.

[0039] The main beam 11 is designed to support the extension beams 14 on both sides, allowing the extension beams 14 to extend and retract horizontally without step limits, making it compatible with most transformers on the market and thus making equipment installation more convenient. The slide groove 12 is designed to fit the slider 13 on the extension beam 14, so that the slide groove 12 and the slider 13 can control the position of the extension beam 14.

[0040] Furthermore, the locking module 2 includes a mounting plate 21 disposed at the bottom end of the main beam 11, a mounting bolt 22 disposed on the mounting plate 21, a fastening block 23 slidably connected to the inside of the mounting plate 21, a rotating handle 24 threadedly connected to the mounting plate 21, and a fastening screw 25 fixedly connected to the rotating handle 24.

[0041] The mounting plate 21 is fixedly connected to the bottom end of the main beam 11 by mounting bolts 22, which facilitates the up-and-down movement of the fastening block 23 inside, thereby causing the fastening block 23 to abut against the internal slider 13, restricting the movement of the slider 13, and thus fixing the position of the extension beam 14, completing the length fixation of the equipment. In addition, the rotating handle 24 is used to control the rotation of the internal fastening bolt, thereby enabling it to move up and down. When the fastening bolt moves upward, it will lift the internal fastening block 23, thereby restricting the movement of the slider 13.

[0042] Preferably, during device installation, the sliding block 13 and the sliding groove 12 cooperate to allow the extension beam 14 to expand and contract on the main beam 11, thereby making the screw holes on the extension beam 14 fit the screw holes on the transformer base, thus allowing the device to be adapted to transformers of various sizes. Then, the rotating handle 24 is controlled to rotate, causing the fastening bolt to squeeze the fastening block 23, causing the fastening block 23 to pass through the hole on the lower side of the main beam 11 and then abut against the sliding block 13, thereby fixing the position of the extension beam 14.

[0043] Furthermore, the limiting module 3 includes a limiting groove 31 formed inside the slide groove 12, a limiting block 32 slidably connected inside the limiting groove 31, and a fixing bolt 33 disposed on the limiting block 32.

[0044] The limiting block 32 is used to restrict the slider 13 in conjunction with the limiting groove 31, so that the movement position of the slider 13 inside the groove 12 is restricted, thereby fixing the extension range of the extension beam 14 and preventing the extension beam 14 from falling off. When it is necessary to replace the slider 13 and the extension beam 14, the fixing bolt 33 can be removed, so that the slider 13 can be removed from the groove 12 and the extension beam 14 can be disassembled and replaced.

[0045] Preferably, when disassembly and replacement are required, the fixing bolts 33 can be removed, allowing the slider 13 to be removed from the inside of the slide groove 12 for replacement.

[0046] Furthermore, the pressure sensing module 4 includes a connecting pad 41, a spring pad 42 disposed on the connecting pad 41, a mounting pad 43 fixedly connected to the spring pad 42, and a pressure sensor body 44 fixedly connected to the mounting pad 43.

[0047] The spring pad 42 is designed so that when the thread breaks, the bolt may fall down by a thread pitch, and the pressure changes. At this time, the spring pad 42 still has residual stress and can support the pressure for a period of time, temporarily playing a fixing role until the maintenance personnel arrive.

[0048] Preferably, the pressure sensor body 44 is configured to detect the pressure on the device, thereby detecting the tightness of the bolts during installation, so that the tightness of multiple bolts is similar, preventing local overtightness or undertightness, and can also monitor in real time to prevent local bolt breakage or loosening from going unnoticed.

[0049] In summary: The guide rail module 1 supports the extension beam 14 via the main beam 11. The sliding groove 12 and the slider 13 work together to allow the extension beam 14 to extend horizontally without steplessness to accommodate transformers of different sizes. The limiting module 3 uses the limiting groove 31, limiting block 32, and fixing bolt 33 to limit the movement range of the slider 13 and prevent the extension beam 14 from falling off. The fixing bolt 33 is also removable for replacing the slider 13 and the extension beam 14. During installation, the position of the extension beam 14 is first adjusted using the slider 13 and the sliding groove 12 so that the screw holes of the extension beam 14 align with the screw holes of the transformer base. Then, the mounting plate 21 of the locking module 2 (fixed to the bottom of the main beam 11 by the mounting bolt 22) and the rotating handle 24 drive the fastening screw 25 to rotate, lifting the fastening block 23 to contact the slider 13 to fix the length of the extension beam 14; in the pressure sensing module 4, the pressure sensor body 44 detects the tightness of the bolts during installation and the pressure during subsequent use in real time, ensuring that the bolts are tightened evenly and promptly detecting breakage and loosening problems. The spring pad 42 provides temporary pressure support with residual stress when the thread breaks, buying time for maintenance.

[0050] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. An integrated intelligent control method, characterized in that: include, A pressure sensor is installed on the transformer connection device. The transformer nameplate QR code is scanned by the local processing unit (EPU), the transformer capacity (S) and total mass (M) are entered, and the target preload range is calculated. During installation, the local processing unit (EPU) reads the current pressure value collected by the pressure sensor in real time, and records the actual installation span (L) formed during the installation process and the distance (a, b) from the point of application of the concentrated force corresponding to the transformer weight to the support point. The horizontal telescopic frame is simplified into a simply supported beam model, and the maximum bending moment of the frame is calculated. The maximum bending stress is obtained by passing the preset section modulus (W) of the main load-bearing channel steel. Based on the matching relationship between the current pressure value and the target preload range, as well as the pressure change rate, the corresponding alarm prompts are triggered until the installation is completed and a stable installation pressure is formed; The maximum bending stress is compared with the allowable stress of the material, and the structural strength is verified by the safety factor. If the strength meets the standard, the subsequent monitoring process is carried out. The original pressure data sequence is obtained by collecting pressure sensor data at a preset frequency, and then a smooth data sequence is obtained by processing the moving average. Based on the installation stability pressure, a first-level early warning threshold is set. Trend analysis and abrupt change detection are performed on the smooth data sequence to achieve a second-level early warning. When the monitoring data triggers the early warning condition, the EPU activates an audible and visual alarm and performs remote data transmission.

2. The integrated intelligent control method according to claim 1, characterized in that: The preset algorithm model includes the target preload calculation formula: The preload range is [ , ],in, ; ; Preload for the target; For safety factor; This refers to the total mass of the transformer. It is the acceleration due to gravity; For the frictional force at the mating surfaces; This is the lower limit of the preload force; This is the upper limit of the preload force; This is the lower limit threshold coefficient; This is the upper limit threshold coefficient.

3. The integrated intelligent control method according to claim 2, characterized in that: The processing unit (EPU) reads the pressure sensor data P_current(t) in real time; P_current(t) < This indicates that the bolts are not tight enough; P_current(t) is greater than This indicates that the bolts are too tight.

4. The integrated intelligent control method according to claim 3, characterized in that: The formula for calculating the maximum bending moment is as follows: The maximum bending moment that a horizontal telescopic frame (simply supported beam model) can withstand; This is the distance from the point of application of the concentrated force corresponding to the weight of the transformer to one end of the support of the simply supported beam. The distance from the point of application of the concentrated force to the support at the other end of the simply supported beam; This refers to the actual installation span of the horizontal telescopic frame.

5. The integrated intelligent control method according to claim 4, characterized in that: The preset frequency is once per hour.

6. A transformer base channel steel connection device, mainly used in the integrated intelligent control method described in any one of claims 1 to 5, and, The guide rail module (1) is provided with a locking module (2), a limiting module (3) provided on the guide rail module (1), a pressure sensing module (4) and a vertical screw (5) provided on the guide rail module (1). The guide rail module (1) and the vertical screw (5) work together to effectively adapt to various types of transformers and on-site working conditions.

7. The transformer base channel steel connecting device according to claim 6, characterized in that: The guide rail module (1) includes a main beam (11), a groove (12) opened on the main beam (11), a slider (13) disposed inside the groove (12), and an extension beam (14) fixedly connected to the slider (13).

8. The transformer base channel steel connecting device according to claim 7, characterized in that: The locking module (2) includes a mounting plate (21) disposed at the bottom end of the main beam (11), a mounting bolt (22) disposed on the mounting plate (21), a fastening block (23) slidably connected to the inside of the mounting plate (21), a rotating handle (24) threadedly connected to the mounting plate (21), and a fastening screw (25) fixedly connected to the rotating handle (24).

9. The transformer base channel steel connecting device according to claim 8, characterized in that: The limiting module (3) includes a limiting groove (31) opened inside the slide (12), a limiting block (32) slidably connected inside the limiting groove (31), and a fixing bolt (33) provided on the limiting block (32).

10. The transformer base channel steel connecting device according to claim 9, characterized in that: The pressure sensing module (4) includes a connecting pad (41), a spring pad (42) disposed on the connecting pad (41), a mounting pad (43) fixedly connected to the spring pad (42), and a pressure sensor body (44) fixedly connected to the mounting pad (43).

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