A transformer with adjustable height

Abstract

The present invention relates to the technical field of transformers, and specifically to a transformer with adjustable height, comprising: a fixed seat, a box-type transformer is placed on the top of the fixed seat, two symmetrical adjustment slots are opened on the upper end of the fixed seat, and the inner bottom walls of the two adjustment slots are fixedly connected with a plurality of linear arrays of first multi-stage electric hydraulic rods, and the telescopic ends of the first multi-stage electric hydraulic rods are fixedly connected to the bottom end of the box-type transformer. Through the cooperation of wind cups, rotating rods, friction cylinders, arc-shaped friction blocks and other components through the wind force detection mechanism, the dynamic balance of wind force and friction force is utilized to accurately detect the size of the wind force, and the current of the sliding rheostat is changed by the sliding of the conductive sheet on the resistor plate, thereby accurately judging the wind force, providing an accurate basis for adjusting the height of the box-type transformer. When the wind force reaches level 1, the PLC controller controls the first multi-stage electric hydraulic rod to retract, driving the box-type transformer to move downward to lower the center of gravity.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, and in particular to a transformer with adjustable height. Background Art

[0002] Transformers include oil-immersed transformers, dry-type transformers, and box-type transformers. Among them, the box-type transformer is a design that compactly and cleverly integrates the various components of a traditional transformer into a closed box-type casing. This unique design gives the box-type transformer many advantages. It is not only small in size, which greatly saves installation space, but also has low noise characteristics during operation and will not cause noise interference to the surrounding environment. At the same time, it also has excellent low-loss performance, which can effectively reduce energy consumption. It is also extremely reliable and can operate stably for a long time. For example, an intelligent box-type transformer with emergency warning lifting function disclosed in application number 202110513127.3 is a box-type transformer.

[0003] Box-type transformers are widely used, not only in cities, but also in remote mountainous areas, construction sites, field exploration bases, etc. Usually, box-type transformers are directly installed on the ground and fixed, and cannot automatically adjust the height according to real-time conditions.

[0004] In outdoor environments, box-type transformers face the challenges of strong winds and heavy rain. When encountering strong winds, due to the high center of gravity of the box-type transformer, the foundation is not stable enough or the fixation is not firm enough, the high center of gravity will produce a large overturning moment under the action of strong winds, and the unstable foundation and loose fixation make it difficult to withstand the wind, and it is very likely to tilt or even collapse.

[0005] In case of heavy rain, the base of the box-type transformer is likely to be submerged, and rainwater may even penetrate into the box-type transformer, which will damage the insulation between the live conductors of different phases and between the live conductors and the grounded parts, thus causing a short circuit fault. A short circuit fault will cause the protection device to trip, affecting the stability of the power supply, and in severe cases, may cause serious damage to the electrical equipment. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a transformer with adjustable height, which can effectively solve the problem that the box-type transformer in the prior art cannot automatically adjust the height according to the real-time situation.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a transformer with adjustable height, comprising:

[0009] A fixed seat, a box-type transformer is placed on the top of the fixed seat, two symmetrical adjustment slots are opened on the upper end of the fixed seat, and the inner bottom walls of the two adjustment slots are fixedly connected with a plurality of linear arrays of first multi-stage electric hydraulic rods, the telescopic ends of the first multi-stage electric hydraulic rods are fixedly connected to the bottom end of the box-type transformer, and the electrical signals of the first multi-stage electric hydraulic rods are connected to the PLC controller to form a lifting circuit;

[0010] A wind force detection mechanism, the wind force detection mechanism comprising a plurality of wind cups in a circumferential array, the outer walls of the plurality of wind cups are fixedly connected with a fixing rod, the other end of the fixing rod is fixedly connected with a connecting block, and the bottom end of the connecting block is fixedly connected with a detection assembly;

[0011] A rainfall detection mechanism, the rainfall detection mechanism includes two symmetrical water tanks fixedly connected to the outer wall of the box-type transformer, the inner walls of the opposite sides of the water tanks are slidably connected with mounting rods, the opposite sides of the two mounting rods are commonly fixedly connected with a water pumping hood, the inner bottom wall of the water tank is fixedly connected with a rectangular water pipe, and the rectangular water pipe is arranged in the water pumping hood.

[0012] Preferably, the wind detection mechanism further comprises a wind detection shell fixedly connected to the outer wall of the box-type transformer, a detection cavity is provided inside the wind detection shell, and a rotating groove connected to the detection cavity is provided at the top of the wind detection shell.

[0013] Preferably, the detection assembly includes a rotating rod fixedly connected to the bottom end of the connecting block, the outer wall of the rotating rod is air-tightly rotatably connected to the rotating groove, the bottom end of the rotating rod is fixedly connected to a first threaded rod, the outer wall of the first threaded rod is threadedly sleeved with a friction cylinder, the outer wall of the friction cylinder is provided with wear-resistant particles, the inner wall of the detection cavity is fixedly connected to a limit rod, and the limit rod slides through the friction cylinder, and the friction cylinder and the inner top wall of the detection cavity are jointly fixedly connected with a reset spring.

[0014] Preferably, the inner wall of the detection cavity is provided with two symmetrical movable grooves, the inner walls on the opposite sides of the two movable grooves are fixedly connected to the first electromagnetic plate, the outer wall of the first electromagnetic plate is fixedly connected to the first plastic spring, the other end of the first plastic spring is fixedly connected to the first permanent magnet plate, the other end of the first permanent magnet plate is fixedly connected to an arc-shaped friction block in contact with the outer wall of the friction cylinder, and the first permanent magnet plate and the first electromagnetic plate magnetically repel each other.

[0015] Preferably, a resistor plate is fixedly connected to the inner wall of the detection cavity, a conductive sheet in contact with the outer wall of the resistor plate is fixedly connected to the bottom end of the friction cylinder, the conductive sheet, the resistor plate and the PLC controller are electrically connected to form a wind detection circuit, the conductive sheet and the resistor plate constitute a sliding rheostat, and during the sliding of the conductive sheet downward on the resistor plate, the resistance of the sliding rheostat in the wind detection circuit gradually decreases, and the PLC controller is electrically connected to the first electromagnetic plate to form a first control circuit.

[0016] Preferably, the rainfall detection mechanism also includes an inclined drainage groove opened near the bottom of the water tank, and the inclined drainage groove is connected to the water outlet, the water inlet of the rectangular water pipe is lower than the inner top wall of the water pumping hood, and the bottom end of the water tank is provided with a water outlet connected to the rectangular water pipe.

[0017] Preferably, the inner wall of the inclined drainage trough is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is elastically hinged with a drain plate, the outer wall of the drain plate on one side away from the water outlet of the inclined drainage trough is fixedly connected with a connecting rod, the other end of the connecting rod is fixedly connected with a pressing head, the inner wall of the inclined drainage trough is fixedly connected with a waterproof press switch in contact with the pressing head, the waterproof press switch is electrically connected to the PLC controller and forms a rainfall detection circuit, and the outer wall of the water tank is fixedly connected with an extended drainage trough corresponding to the position of the inclined drainage trough.

[0018] Preferably, it also includes a fixing mechanism, which includes three adjustment grooves opened at the bottom end of the box-type transformer, the inner top walls of the three adjustment grooves are fixedly connected with a second multi-stage electric hydraulic rod, the telescopic end of the second multi-stage electric hydraulic rod is fixedly connected with an insertion rod, and a protective groove communicating with the three adjustment grooves is opened at the bottom end of the fixing seat, and the PLC controller is connected to the second multi-stage electric hydraulic rod by electrical signals to form a fixed loop.

[0019] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0020] The wind force detection mechanism uses the wind cup, rotating rod, friction cylinder, arc-shaped friction block and other components to cooperate, and utilizes the dynamic balance of wind force and friction force to accurately detect the size of the wind force, and change the current of the sliding rheostat by sliding the conductive sheet on the resistor plate, thereby accurately judging the wind force and providing an accurate basis for adjusting the height of the box-type transformer. When the wind force reaches level 6, the PLC controller controls the first multi-stage electric hydraulic rod to retract, driving the box-type transformer to move downward to lower the center of gravity and reduce the overturning moment caused by the wind force on it; when the wind force reaches level 9, the second multi-stage electric hydraulic rod of the PLC controller will be started to push the rod into the soil, further enhancing stability and resisting damage from strong winds. The traditional box-type transformer has a high center of gravity and a relatively simple foundation and fixing method, making it difficult to resist strong winds and prone to tilting or even collapse.

[0021] The rainfall detection mechanism is equipped with two water tanks with the same detection structure inside. The detection accuracy is improved by comparing the detection results. At the same time, when a water tank detection structure fails, the detection structure of the other water tank can continue to monitor, ensuring stable detection of rainfall and avoiding monitoring interruptions due to abnormalities in a single detection structure. In contrast, traditional box-type transformers do not have such a detection and response mechanism. When the rainfall reaches a certain level, the PLC controller controls the first multi-stage electric hydraulic rod to push the box-type transformer upward to keep a certain safe distance from the accumulated water to avoid flooding and protect the safety of the equipment. Traditional box-type transformers cannot automatically respond to accumulated water and are easily flooded, resulting in internal short circuits and other faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing seat of the present invention;

[0025] Figure 3 It is a schematic diagram of a partial cross-sectional three-dimensional structure of a water tank of the present invention;

[0026] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the water tank of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of part B;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the cross section of the wind force detection shell of the present invention;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the cross-section of the wind force detection shell of the present invention;

[0030] Figure 8 For the present invention Figure 7 Enlarged view of part A;

[0031] Fig. 9 It is a schematic diagram of the cross-sectional three-dimensional structure of the box-type transformer of the present invention.

[0032] Figure numerals: 1, fixed seat; 2, box-type transformer; 3, adjustment slot; 4, first multi-stage electric hydraulic rod; 5, wind detection mechanism; 51, wind cup; 52, fixed rod; 53, connecting block; 54, detection assembly; 541, rotating rod; 542, first threaded rod; 543, friction cylinder; 544, limit rod; 545, reset spring; 546, moving slot; 547, first electromagnetic plate; 548, first plastic spring; 549, first permanent magnet plate; 5410, arc friction block; 5411, Resistor plate; 5412, conductive sheet; 55, wind detection shell; 56, detection chamber; 57, rotating slot; 6, rainfall detection mechanism; 61, water tank; 62, mounting rod; 63, water extraction hood; 64, rectangular water pipe; 65, extended drainage trough; 66, water outlet; 67, inclined drainage trough; 68, drain plate; 69, connecting rod; 610, pressing head; 611, waterproof pressing switch; 7, fixing mechanism; 71, adjusting slot; 72, second multi-stage electric hydraulic rod; 73, plug rod; 74, protective slot. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention will be further described below in conjunction with the embodiments.

[0035] Example: Refer to Figures 1 to 9 , a transformer with adjustable height, comprising:

[0036] A fixed seat 1, a box-type transformer 2 is placed on the top of the fixed seat 1, two symmetrical adjustment slots 3 are provided on the upper end of the fixed seat 1, and the inner bottom walls of the two adjustment slots 3 are fixedly connected with a plurality of linear arrays of first multi-stage electric hydraulic rods 4, and the telescopic ends of the first multi-stage electric hydraulic rods 4 are fixedly connected to the bottom end of the box-type transformer 2, and the first multi-stage electric hydraulic rods 4 are electrically connected to the PLC controller to form a lifting circuit. After the box-type transformer 2 is installed, the first multi-stage electric hydraulic rods 4 are usually started manually to push the box-type transformer 2 to move upward. The reason is that in low-lying or water-prone places, raising the box-type transformer 2 can prevent rainwater from flowing back, avoid electrical equipment from being damaged by moisture and water ingress, and improve operational safety and stability; at the same time, raising the transformer can also help improve the bottom air circulation, enhance ventilation and heat dissipation effects, quickly dissipate the heat generated by operation, reduce operating temperature, improve work efficiency and performance, and reduce equipment failures and insulation aging problems caused by overheating, but it will not be too high to prevent being affected by wind;

[0037] The wind force detection mechanism 5 includes a plurality of wind cups 51 in a circular array, the outer walls of the plurality of wind cups 51 are fixedly connected with a fixing rod 52, the other end of the fixing rod 52 is fixedly connected with a connecting block 53, and the bottom end of the connecting block 53 is fixedly connected with a detection component 54, wherein the wind cup 51, the fixing rod 52, and the connecting block 53 generally have high strength, high toughness, fatigue resistance, corrosion resistance and other properties to withstand severe environmental conditions such as strong winds, wherein the wind cup 51 is made of high-strength and weather-resistant engineering plastic material, such as polycarbonate (PC), and the diameter of the wind cup 51 is set to 200mm. According to the aerodynamic design, its windward surface is a special arc, which can effectively improve the efficiency of capturing wind force. According to the wind tunnel experiment test, within the wind speed range of 1-12, the angular velocity of the wind cup rotation has a good linear relationship with the wind speed, and the linear correlation coefficient reaches above 0.98;

[0038] The wind detection mechanism 5 also includes a wind detection shell 55 fixedly connected to the outer wall of the box-type transformer 2 . A detection cavity 56 is provided inside the wind detection shell 55 . A rotating groove 57 connected to the detection cavity 56 is provided at the top of the wind detection shell 55 .

[0039] The detection component 54 includes a rotating rod 541 fixedly connected to the bottom end of the connecting block 53, the outer wall of the rotating rod 541 is air-tightly rotatably connected to the rotating groove 57, the bottom end of the rotating rod 541 is fixedly connected to a first threaded rod 542, the outer wall of the first threaded rod 542 is threadedly sleeved with a friction cylinder 543, the outer wall of the friction cylinder 543 is provided with wear-resistant particles, the inner wall of the detection cavity 56 is fixedly connected to a limiting rod 544, and the limiting rod 544 slides through the friction cylinder 543, and the friction cylinder 543 and the inner top wall of the detection cavity 56 are jointly fixedly connected with a reset spring 545.

[0040] Two symmetrical moving grooves 546 are provided on the inner wall of the detection cavity 56, and the inner wall on the opposite side of the two moving grooves 546 is fixedly connected to the first electromagnetic plate 547, and the outer wall of the first electromagnetic plate 547 is fixedly connected to the first plastic spring 548, and the other end of the first plastic spring 548 is fixedly connected to the first permanent magnet plate 549, and the other end of the first permanent magnet plate 549 is fixedly connected to the arc-shaped friction block 5410 in contact with the outer wall of the friction cylinder 543. The first permanent magnet plate 549 and the first electromagnetic plate 547 magnetically repel each other, and the amount of current flowing through the first electromagnetic plate 547 is the same, and both repel the first permanent magnet plate 549 with great force, and then push the two arc-shaped friction blocks 5410 to squeeze the friction cylinder 543 through the two first permanent magnet plates 549. Even if the two arc-shaped friction blocks 5410 and the friction cylinder 543 are worn, the repulsive force of the first electromagnetic plate 547 on the first permanent magnet plate 549 can still make the two arc-shaped friction blocks 5410 tightly clamp the friction cylinder 543.

[0041] The inner wall of the detection cavity 56 is fixedly connected with a resistor plate 5411, and the bottom end of the friction cylinder 543 is fixedly connected with a conductive sheet 5412 in contact with the outer wall of the resistor plate 5411. The conductive sheet 5412, the resistor plate 5411 and the PLC controller are electrically connected to form a wind detection circuit. The conductive sheet 5412 and the resistor plate 5411 constitute a sliding rheostat. When the conductive sheet 5412 slides downward on the resistor plate 5411, the resistance of the sliding rheostat in the wind detection circuit gradually decreases. The PLC controller is electrically connected to the first electromagnetic plate 547 to form a first control circuit.

[0042] The arc-shaped friction block 5410 is made of high-hardness and high-wear-resistant polyurethane rubber material, with a Shore hardness of 85A and a friction coefficient between 0.5-0.7. The wear-resistant particles on the surface of the friction cylinder 543 are made of silicon carbide, with a particle size of 0.5mm and uniform distribution, so that when it contacts the arc-shaped friction block 5410, it can generate a stable and adjustable friction force. According to the simulation experiment, when the wind force reaches level 6 (wind speed 10.8-13.8m / s), the friction cylinder 543 moves down to a specific position, and the conductive sheet 5412 slides on the resistor plate 5411 to change the resistance value, so that the current change in the wind detection circuit reaches the set threshold value, triggering the PLC controller to act; when the wind force reaches level 9 (wind speed 20.8-24.4m / s), the friction cylinder 543 moves further down to ensure the detection accuracy.

[0043] The rainfall detection mechanism 6 includes two symmetrical water tanks 61 fixedly connected to the outer wall of the box-type transformer 2, the inner walls of the opposite sides of the water tanks 61 are slidably connected with mounting rods 62, the opposite sides of the two mounting rods 62 are commonly fixedly connected with a water pumping cover 63, the inner bottom wall of the water tank 61 is fixedly connected with a rectangular water pipe 64, and the rectangular water pipe 64 is arranged in the water pumping cover 63, and a filter is arranged on the above-mentioned water tank 61 to prevent impurities from entering the water tank 61 and thus affecting the siphon effect.

[0044] The rainfall detection mechanism 6 also includes an inclined drainage groove 67 opened near the bottom end of the water tank 61, and the inclined drainage groove 67 is connected to the water outlet 66. The water inlet of the rectangular water pipe 64 is lower than the inner top wall of the water pumping hood 63. The bottom end of the water tank 61 is provided with a water outlet 66 connected to the rectangular water pipe 64.

[0045] The inner wall of the inclined drainage groove 67 is fixedly connected with a rotating shaft, and the outer wall of the rotating shaft is elastically hinged with a drain plate 68. The outer wall of the drain plate 68 on the side away from the water outlet 66 of the inclined drainage groove 67 is fixedly connected with a connecting rod 69, and the other end of the connecting rod 69 is fixedly connected with a pressing head 610. The inner wall of the inclined drainage groove 67 is fixedly connected with a waterproof pressing switch 611 in contact with the pressing head 610. The waterproof pressing switch 611 is connected to the electrical signal of the PLC controller and forms a rainfall detection circuit. The outer wall of the water tank 61 is fixedly connected with an extended drainage groove 65 corresponding to the position of the inclined drainage groove 67. The waterproof pressing switch 611 is in a closed state when pressed by the pressing head 610.

[0046] It also includes a fixing mechanism 7, which includes three adjustment slots 71 opened at the bottom end of the box-type transformer 2. The inner top walls of the three adjustment slots 71 are fixedly connected with a second multi-stage electric hydraulic rod 72. The telescopic end of the second multi-stage electric hydraulic rod 72 is fixedly connected with a plug rod 73. The bottom end of the fixed seat 1 is provided with a protective slot 74 that communicates with the three adjustment slots 71. The PLC controller is connected to the second multi-stage electric hydraulic rod 72 by electrical signals to form a fixed loop. The second multi-stage electric hydraulic rod 72 is used to drive the plug rod, and its rated thrust is 30kN and the stroke is 0.5-1.5m. The plug rod 73 is made of high-strength alloy steel, with a diameter of 50mm and a length of 1m. The front end is a sharp cone design for easy insertion into the soil. When inserted into ordinary soil with a hardness of 100-300kPa, after field testing, the plug rod can effectively enhance the stability of the box-type transformer 2 and increase the anti-overturning moment by more than 50%.

[0047] The working principle of the present invention is as follows:

[0048] When encountering strong winds outdoors, the wind force is detected by the wind force detection mechanism 5. The specific detection method and processing method are as follows:

[0049] When encountering strong winds, when strong winds act on the wind cup 51, the wind cup 51 will be pushed by the wind and rotate, and the rotation of the wind cup 51 will drive the fixed rod 52, the connecting block 53 and the threaded rod connected thereto to rotate, and then the friction cylinder 543 is limited by the limiting rod 544, thereby causing the friction cylinder 543 to move downward. However, when the wind force is small, the driving force exerted on the wind cup 51 is small, and the torque transmitted to the threaded rod is also relatively small, and the small torque is not enough to make the friction cylinder 543 enter between the two arc-shaped friction blocks 5410. There is a certain spacing and relative position relationship between the two arc-shaped friction blocks 5410 in the initial state. When there is no sufficient external force, the distance between them and their own structure will hinder the entry of the friction cylinder 543. Therefore, when the wind force is small, the friction cylinder 543 will not enter between the two arc-shaped friction blocks 5410, so the current passing through the sliding rheostat will not change, which also proves that the strong wind will not affect the box-type transformer 2 at this time.

[0050] However, when the wind is strong, the friction cylinder 543 will slowly enter between the two arc-shaped friction blocks 5410. As the wind force increases, the contact area between the friction cylinder 543 and the two arc-shaped friction blocks 5410 gradually increases. Therefore, a stronger wind force is required to continue to drive the friction cylinder 543 to continue to move downward, indicating that there is a dynamic balance between wind force and friction force in the device during operation. As the wind force increases, the friction force also increases accordingly. Only when the wind force overcomes the current friction force will the friction cylinder 543 continue to move downward. Slight changes in wind force will not cause excessive movement of the friction cylinder 543 or excessive reaction of the device, and when the friction cylinder 543 moves downward, the friction cylinder 543 will not move downward. During the movement, the conductive sheet 5412 will be driven to slide downward on the resistor plate 5411, thereby changing the current passing through the sliding rheostat (pre-tested, the current passing through the sliding rheostat is proportional to the wind force). The wind force can be judged by the current of the sliding rheostat. When the wind force reaches level 6 (pre-tested, the wind force reaching level 6 may cause damage to the box-type transformer 2), the first multi-stage electric hydraulic rod 4 is controlled to retract through the PLC controller, thereby driving the box-type transformer 2 to move downward. When the box-type transformer 2 is installed at a certain height above the ground, under the action of strong wind, the higher center of gravity will make it more susceptible to the influence of wind force and cause shaking or even tipping. Moving the box-type transformer 2 downward can lower its overall center of gravity, reduce the overturning moment caused by wind force on it, enhance its stability in strong winds, and reduce the risk of being blown down or damaged by the wind.

[0051] When the wind force continues to increase and increases to level 9, it is necessary to control the second multi-stage electric hydraulic rod 72 to start through the PLC controller, and push the insertion rod 73 downward through the second multi-stage electric hydraulic rod 72, and then insert the insertion rod 73 into the soil, which can further enhance the stability of the box-type transformer 2 and resist damage from strong winds.

[0052] When encountering heavy rain, the wind force is detected by the rainfall detection mechanism 6. The specific detection method and processing method are as follows:

[0053] When it rains, rainwater will fall into the water tank 61. As the rainwater falls into the water tank 61, it will slowly accumulate in the water tank 61. When the liquid level of rainwater in the water tank 61 is higher than the water inlet height of the rectangular water pipe 64, the rectangular water pipe 64 in the water tank 61 will pump out the rainwater in the water tank 61 through the siphon principle. The pumped rainwater will fall on the drain plate 68, thereby driving the drain plate 68 to tilt toward the inclined drainage groove 67, thereby driving the connecting rod 69 to move upward, so that the pressing head 610 is no longer in contact with the waterproof pressing switch 611. At this time, the waterproof pressing switch 611 is turned on, so the PLC controller will be able to detect the opening of the waterproof pressing switch 611 and record the opening time of the waterproof pressing switch 611 through the PLC controller, because the two opening times of the waterproof pressing switch 611 are the time when the water tank 61 is full.

[0054] After the rainwater in the water tank 61 is drained, since the drain plate 68 is elastically hinged, the waterproof plate will return to its original position, and the pressing head 610 will continue to press the waterproof pressing switch 611 for continued use. In addition, by setting up two water tanks 61 with the same detection structure in the two water tanks 61, the detection accuracy can be improved by comparing the detection results. At the same time, when a failure occurs in the detection structure of one water tank 61, monitoring can continue by relying on the detection structure of the other water tank 61, thereby ensuring stable detection of relevant indicators and avoiding monitoring interruption due to abnormality of a single detection structure.

[0055] The rainfall is obtained by calculating the opening time of each two switch presses. The greater the rainfall, the higher the height of the box-type transformer 2 is pushed upward by controlling the first multi-stage electric hydraulic rod 4 through the PLC controller, so that the box-type transformer 2 can maintain a certain safe distance from the accumulated water to avoid being flooded, thereby protecting the safety of the equipment.

[0056] In the case of both strong winds and heavy rain, the box-type transformer 2 will be lifted up first, but the insertion rod 73 will be pushed into the soil completely by the second multi-stage electric hydraulic rod 72, so as to prevent the box-type transformer 2 from being flooded and blown over.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A transformer with adjustable height, characterized in that: include: A fixed seat (1), a box-type transformer (2) is placed on the top of the fixed seat (1), two symmetrical adjustment slots (3) are provided on the upper end of the fixed seat (1), a plurality of linear arrays of first multi-stage electric hydraulic rods (4) are fixedly connected to the inner bottom walls of the two adjustment slots (3), the telescopic ends of the first multi-stage electric hydraulic rods (4) are fixedly connected to the bottom end of the box-type transformer (2), and the electrical signals of the first multi-stage electric hydraulic rods (4) are connected to a PLC controller to form a lifting circuit; A wind force detection mechanism (5), the wind force detection mechanism (5) comprising a plurality of wind cups (51) in a circumferential array, the outer walls of the plurality of wind cups (51) being fixedly connected to a fixing rod (52), the other end of the fixing rod (52) being fixedly connected to a connecting block (53), the bottom end of the connecting block (53) being fixedly connected to a detection assembly (54); The wind force detection mechanism (5) further comprises a wind force detection shell (55) fixedly connected to the outer wall of the box-type transformer (2), a detection cavity (56) being provided inside the wind force detection shell (55), and a rotating groove (57) communicating with the detection cavity (56) being provided at the top end of the wind force detection shell (55); The detection assembly (54) comprises a rotating rod (541) fixedly connected to the bottom end of the connecting block (53); the outer wall of the rotating rod (541) is connected to the rotating groove (57) in an airtight rotational manner; the bottom end of the rotating rod (541) is fixedly connected to a first threaded rod (542); the outer wall of the first threaded rod (542) is threadedly sleeved with a friction cylinder (543); The inner wall of the detection cavity (56) is fixedly connected to a resistance plate (5411), the bottom end of the friction cylinder (543) is fixedly connected to a conductive sheet (5412) in contact with the outer wall of the resistance plate (5411), and the conductive sheet (5412) and the resistance plate (5411) are connected to the PLC controller via electrical signals to form a wind detection circuit; A rainfall detection mechanism (6), the rainfall detection mechanism (6) comprising two symmetrical water tanks (61) fixedly connected to the outer wall of the box-type transformer (2), the inner walls of opposite sides of the water tanks (61) are slidably connected to mounting rods (62), the opposite sides of the two mounting rods (62) are commonly fixedly connected to a water extraction cover (63), the inner bottom wall of the water tank (61) is fixedly connected to a rectangular water delivery pipe (64), and the rectangular water delivery pipe (64) is arranged in the water extraction cover (63); The rainfall detection mechanism (6) further comprises two mounting rods (62) fixedly connected to the inner walls on both sides of the water tank (61), the water inlet of the rectangular water pipe (64) is lower than the inner top wall of the water pumping cover (63), the bottom end of the water tank (61) is provided with a water outlet (66) in communication with the rectangular water pipe (64), and the water tank (61) is provided with an inclined drainage groove (67) near the bottom end, and the inclined drainage groove (67) is in communication with the water outlet (66); The inner wall of the inclined drainage groove (67) is fixedly connected to a rotating rod (541), the outer wall of the rotating rod (541) is elastically hinged to a water discharge plate (68), the outer wall of the water discharge plate (68) on one side away from the water outlet (66) of the inclined drainage groove (67) is fixedly connected to a connecting rod (69), the other end of the connecting rod (69) is fixedly connected to a pressing head (610), the inner wall of the inclined drainage groove (67) is fixedly connected to a waterproof pressing switch (611) in contact with the pressing head (610), and the waterproof pressing switch (611) is connected to an electrical signal of a PLC controller to form a rainfall detection circuit.

2. The height-adjustable transformer according to claim 1, characterized in that: The outer wall of the friction cylinder (543) is provided with wear-resistant particles, the inner wall of the detection cavity (56) is fixedly connected to a limit rod (544), and the limit rod (544) slides through the friction cylinder (543), and the friction cylinder (543) and the inner top wall of the detection cavity (56) are fixedly connected to a return spring (545).

3. The height-adjustable transformer according to claim 2, characterized in that: The inner wall of the detection cavity (56) is provided with two symmetrical movable grooves (546); the inner walls on the opposite sides of the two movable grooves (546) are fixedly connected to a first electromagnetic plate (547); the outer wall of the first electromagnetic plate (547) is fixedly connected to a first plastic spring (548); the other end of the first plastic spring (548) is fixedly connected to a first permanent magnetic plate (549); the other end of the first permanent magnetic plate (549) is fixedly connected to an arc-shaped friction block (5410) in contact with the outer wall of the friction cylinder (543); the first permanent magnetic plate (549) and the first electromagnetic plate (547) are magnetically repelled from each other.

4. The height-adjustable transformer according to claim 3, characterized in that: The conductive sheet (5412) and the resistor plate (5411) form a sliding rheostat. When the conductive sheet (5412) slides downward on the resistor plate (5411), the resistance of the sliding rheostat in the wind detection circuit gradually decreases. The PLC controller is electrically connected to the first electromagnetic plate (547) to form a first control circuit.

5. The height-adjustable transformer according to claim 1, characterized in that: An extended drainage groove (65) corresponding to the position of the inclined drainage groove (67) is fixedly connected to the outer wall of the water tank (61).

6. The height-adjustable transformer according to claim 1, characterized in that: The invention also comprises a fixing mechanism (7), wherein the fixing mechanism (7) comprises three adjusting grooves (71) provided at the bottom end of the box-type transformer (2), the inner top walls of the three adjusting grooves (71) are all fixedly connected with a second multi-stage electric hydraulic rod (72), the telescopic end of the second multi-stage electric hydraulic rod (72) is fixedly connected with an insertion rod (73), the bottom end of the fixing seat (1) is provided with a protective groove (74) which is in communication with the three adjusting grooves (71), and the PLC controller is connected with the second multi-stage electric hydraulic rod (72) by electrical signals to form a fixed circuit.

Images