Control transformer with good protection performance for elevator

Abstract

The control transformer comprises a base, storage sleeves are mounted at the four corners of the top of the base correspondingly, storage grooves are formed in the outer surfaces of the four storage sleeves correspondingly, connecting rods are slidably mounted in the four storage sleeves correspondingly, and stop rods are mounted on the outer surfaces of the four connecting rods correspondingly; a baffle is installed on the outer surface of the stop rod, storage rods are installed at the tops of the four sets of connecting rods through shafts, first insertion holes are formed in the tops of the storage rods, first insertion rods are installed in the first insertion holes in an embedded mode, and a top plate is installed at the tops of the first insertion rods; net plates are mounted on the surfaces, close to one another, of the four storage rods. By arranging the base, the storage sleeve, the storage groove, the connecting rod, the stop rod, the first insertion rod and the net plate, the connecting rod is inserted into the storage sleeve, the stop rod is rotated so that the stop rod can slide in the storage groove, and then the first insertion rod is inserted into the first insertion hole.

Description

technical field [0001] The invention relates to the technical field of control transformers, in particular to a control transformer with good protection for elevators. Background technique [0002] When the elevator is running, it usually needs a transformer to control it, but the existing control transformer does not have a protective function during use, and long-term use can easily lead to damage to the control transformer and affect its service life, and there are major defects. Therefore, there is an urgent need for a control transformer with good protection for elevators. [0003] The disadvantages of the existing control transformers are: [0004] 1. Patent document CN213211917U, an anti-corrosion alloy control transformer, including a control transformer body, the top of the control transformer body is fixed with a nameplate by embedding, and there are support plates on the front and rear sides of the bottom of the control transformer body, and the support plates ar...

AI Technical Summary

Problems solved by technology

[0004] 1. Patent document CN213211917U, an anti-corrosion alloy control transformer, including a control transformer body, the top of the control transformer body is fixed with a nameplate by embedding, and support plates are provided on the front and rear sides of the bottom of the control transformer body, and the support plates are made of anti-corrosion alloy material. There are installation holes on the left and right sides of the support plate, a base plate is provided under the control transformer body, and an installation groove is opened on the top of the base plate corresponding to the support plate. The contact area of ​​the installation groove and the support plate is the same and there are threaded holes corresponding to the installation holes. The holes are connected to the threaded holes by bolts. There is an iron core in the middle of the control transformer body. The support plate and the control transformer body and the control transformer body and the iron core are fixed by gas shielded argon arc welding. There is a set of wiring on the front and rear sides of the iron core. The terminals and connecting terminals are made of flame-retardant and heat-resistant materials; this kind of anti-corrosion alloy control transformer has the advantages of multiple anti-corrosion and heat-resistant connecting terminals, but the control transformer in the above public documents mainly considers how to improve the anti-corrosion of the control transformer. function, and did not take into account that the existing elevator control transformer does not have a protective function during use;

[0005] 2. The patent document CN210156238U discloses a control transformer with good stability, including a control transformer main body, a wiring mechanism and a fixing mechanism. A limiting plate is arranged on the bottom surface of the junction box, a pressure plate is arranged on one side of the top surface of the limiting plate, a wiring groove is opened on the top surface of the junction box, and the pressure plate is inside the wiring groove, There are connecting blocks on both sides, and a rotating shaft is arranged on one side of the connecting block; by installing a wiring mechanism, the problem of inconvenient wiring in the traditional way is avoided, and by installing a torsion spring, it is ensured that the pressing plate can clamp the wires , by installing the limit plate, it is convenient for the operator to operate. By installing the fixing mechanism, the problem of inconvenient installation of the device is avoided. By installing the spring and the limit block, it is ensured that the bottom surface of the limit block is always fixed. The bottom surface of the board, but the control transformer in the above public documents mainly considers how to improve the stability of the control transformer when it is installed, and does not take into account that when cleaning the dust on the surface of the protective device, the dust that falls after cleaning can easily fly into the inside of the transformer. And then affect the use of the transformer;

[0006] 3. The patent document CN213211889U discloses a ring-shaped power supply control transformer that is convenient for heat dissipation, including a ring-shaped power supply control transformer body. The lower surface of the ring-shaped power supply control transformer body is fixed with a bottom plate by screws, and the four corners of the top surface of the bottom plate are integrated with a fixed plate. The lower end of the bottom plate is equipped with a collection box, the front surface of the collection box is covered with an inspection groove, and the inspection groove is equipped with a sealing block. The rear end of the sealing block is integrally poured with a frame and installed in the collection box. The inner wall of the frame is fixed with a filter screen by screws. The bottom surface of the collection box is fixed with a suction fan by screws, and the top surface of the base plate is provided with through holes to communicate with the collection box. The fixing plate is L-shaped, and the upper surface is provided with screw holes. The sliding groove is also connected with the T-shaped sliding plate integrally casted on the left and right sides of the upper surface of the collection box; the utility model has the advantages of convenient collection and storage of dust, high heat dissipation performance and convenient cleaning of dust, but the control in the above-mentioned open documents The transformer mainly considers how to improve the heat dissipation performance of the control transformer, and does not take into account that during the use of the existing elevator control transformer, the wire tubes on the surface are easily entangled and cause wear;

The easy-to-disassemble control transformer includes a transformer, and the transformer is provided with a lifting device outside, and the lifting device includes a telescopic motor, and a telescopic block is movably connected to the telescopic motor, and the upper surface of the telescopic block is fixedly connected with a Transformer, the lower surface of the transformer is fixedly connected with a fixed rod, this kind of control transformer that is easy to disassemble, after the fixed threaded rod is completely separated from the threaded groove, the separation of the fixed frame and the transformer is realized, and the control Disassembly of the transformer, when the device is disassembled, the process of manual handling is eliminated, avoiding manual direct contact with the transformer, reducing the electric shock accidents caused by workers directly contacting the transformer, eliminating the need for workers to work at high places, and improving control The disassembly safety of the transformer greatly reduces the risk of the control transformer, but the control transformer in the above public documents mainly considers how to facilitate the installation and disassembly of the control transformer, thereby improving the safety during the disassembly process, and does not take into account the existing The control transformer has poor heat dissipation effect during use, and long-term use will easily lead to heat accumulation and cause thermal damage to the control transformer

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