Waterproof transformer for constructional engineering

Abstract

The invention relates to the technical field of transformers, and particularly discloses a constructional engineering waterproof transformer which comprises a shell, two supporting frames are arranged at the bottom end of the shell, a filling cavity is formed in each supporting frame, a filter plate is fixedly arranged on one side of each filling cavity, a water inlet is formed in the side, close to the filter plate, of each filling cavity, and a sealing plate is slidably arranged in each water inlet; two cavities matched with the two filling cavities are formed in the side walls of the two sides of the shell correspondingly, moving plates are slidably arranged in the cavities, a plurality of electric push rods are fixedly arranged at the top ends of the moving plates, a plurality of supporting rods are fixedly arranged at the bottom ends of the moving plates, extending grooves are formed in the bottom ends of the supporting rods, and switches are fixedly arranged at the tops of the extending grooves. By arranging the electric push rod, the moving plate and the supporting rod, when the water level rises, the electric push rod is matched with the moving plate and the supporting rod to enable the shell to rise, so that water at the bottom cannot enter the shell, and the water is prevented from damaging electronic elements and coils in the shell.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, and in particular discloses a waterproof transformer for construction engineering. Background Art

[0002] Waterproof transformers used in construction projects usually refer to transformers installed in humid or water-prone environments, and special waterproofing measures are required to ensure their safe and reliable operation.

[0003] In construction projects, especially in outdoor or underground environments, transformers are often at risk of being soaked by rainwater. Traditional transformers are usually installed in fixed locations and cannot automatically change their position when the water level rises. Once they encounter heavy rain or floods, they are easily submerged by water, causing internal electronic components and coils to become damp and damaged. It is difficult to protect the internal coils or electronic components, resulting in serious economic losses and safety hazards. Summary of the Invention

[0004] In view of the above deficiencies in the prior art, the present invention provides a waterproof transformer for construction projects to solve the problem that the transformer in the prior art cannot automatically change its position when the water level rises, making it difficult to protect the internal coils or electronic components.

[0005] The technical solution adopted by the present invention to solve its technical problem is: The construction engineering waterproof transformer includes a shell, two sets of support frames are provided at the bottom end of the shell, a filling cavity is provided in the support frame, and the filling cavity is filled with polymer material particles. A filter plate is fixedly provided on one side of the filling cavity, and a water inlet is provided on the side of the filling cavity close to the filter plate. A sealing plate is slidably provided in the water inlet, and the sealing plate is used to seal the water inlet; Two groups of cavities are provided in the side walls on both sides of the shell, respectively cooperating with the two groups of filling cavities. A movable plate is slidingly provided inside the cavity. A plurality of electric push rods are fixedly provided on the top of the movable plate. The top of the electric push rod is fixedly connected to the top of the cavity. A plurality of support rods are fixedly provided on the bottom end of the movable plate. The bottom end of the support rod passes through the bottom wall of the cavity and is fixedly connected to the top of the support frame. An extension groove is provided at the bottom end of the support rod, which is communicated with the filling cavity, and a switch is fixedly provided on the top of the extension groove. The switch and the electric push rod are electrically connected, and the switch is used to control the electric push rod.

[0006] Furthermore, a plurality of first extrusion springs are fixedly provided on the top of the sealing plate, a plurality of floats are fixedly provided on the side of the sealing plate away from the filling cavity, and a plurality of float openings are provided on the side wall of the support frame close to the sealing plate, and the plurality of floats all pass through the openings of the support frame.

[0007] Furthermore, wiring members are fixedly provided on the top of the inner walls on both sides of the shell, and an extrusion groove is provided on the side of the wiring member away from the cavity. Two groups of pressure rods are slidingly provided on the upper and lower parts of the extrusion groove close to the cavity, and the two groups of pressure rods pass through the top and bottom ends of the wiring member respectively.

[0008] Furthermore, a wire threading groove is opened through the pressure rod, and a second extrusion spring is sleeved on the outer surface of the pressure rod. One end of the second extrusion spring is fixedly connected to the pressure rod, and the other end of the second extrusion spring is fixedly connected to the inner wall of the extrusion groove, and the opposite sides of the two pressure rods are in conflict with each other.

[0009] Furthermore, the wire threading grooves provided in the two groups of compression rods are connected, and wires are passed through and fixedly provided in the two groups of wire threading grooves, and the wires are fixedly connected in the two groups of wire threading grooves by bolts.

[0010] Furthermore, an extrusion block is slidably arranged in the extrusion groove, and the upper and lower sides of the extrusion block close to one end of the pressure rod are arranged in an inclined shape as a whole, and the opposite sides of the two groups of pressure rods close to the side of the extrusion block are arranged in an inclined shape as a whole, and the upper and lower sides of the extrusion block close to one end of the pressure rod are in conflict with the side of the opposite side of the pressure rod close to the extrusion block.

[0011] Furthermore, a plurality of pull ropes are fixedly provided at one end of the extrusion block close to the cavity, and one end of the pull ropes away from the extrusion block passes through the inner wall of the shell and is fixedly connected to the top of the movable plate.

[0012] Furthermore, two sets of ventilation grilles are fixedly provided on both side walls of the shell without a cavity, and four sets of movable grooves are provided on the side walls of the shell to match the four sets of ventilation grilles, and sealing grilles are slidably provided in the movable grooves.

[0013] Furthermore, a pressure groove is provided on the top of the sealing grille, and the pressure groove is arranged in an inclined shape as a whole. Four groups of extrusion rods are fixedly provided at the two ends of the two groups of extrusion blocks to cooperate with the four groups of pressure grooves. The extrusion rods are slidably arranged in the pressure groove, and the extrusion rods can squeeze the inner wall of the pressure groove.

[0014] Furthermore, a sealing gasket is fixedly provided on one side of the sealing grille close to the ventilation grille, and the sealing gasket is used to seal the ventilation grille.

[0015] The beneficial effects of the present invention are: 1. The present invention provides an electric push rod, a movable plate and a support rod. When the water level rises, the electric push rod cooperates with the movable plate and the support rod to make the housing containing the electronic components and the coil rise, thereby preventing the water at the bottom from entering the housing, thereby preventing the water from damaging the electronic components and the coil inside the housing.

[0016] 2. The present invention sets a sealing plate and a float. When the water level rises, the float can drive the sealing plate to rise, thereby automatically opening the water inlet, allowing water to enter the filling cavity and contact the polymer material particles. The polymer material particles expand when encountering water and squeeze the switch, thereby automatically controlling the operation of the electric push rod.

[0017] 3. The present invention provides an extrusion block and a pull rope. When the shell rises, the pull rope can drive the extrusion block to move, so that the two sets of compression rods that conflict with each other move toward their opposite sides, thereby disconnecting the wires fixedly connected in the two sets of wire ducts, and stopping the transformer from working.

[0018] 4. The present invention provides a sealing grille, an extrusion rod and a pressure groove. During the movement of the extrusion block, the extrusion rod can squeeze the pressure groove, causing the sealing grille to move downward, automatically closing the opening on the ventilation grille, thereby preventing water from passing through the ventilation grille to damage the electronic components and coils inside the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic cross-sectional view of the present invention; Figure 3 Schematic cross-sectional view of a portion of the structure of the housing, movable plate, electric push rod, support rod, ventilation grille, support frame, filling chamber, filter plate, terminal block, extrusion block and pull rope of the present invention; Figure 4 It is a schematic cross-sectional view of the partial structure of the support rod, extension slot, switch, support frame, filling chamber, filter plate, water inlet, sealing plate, first extrusion spring and float of the present invention; Figure 5 It is a partial cross-sectional view of the housing, cavity, movable plate, electric push rod, support rod, connecting piece, extrusion groove, pressure rod, threading groove, extrusion block, pull rope and second extrusion spring of the present invention; Figure 6 for Figure 5 Schematic diagram of the enlarged structure at A in the middle; Figure 7 It is a partial structural cross-sectional diagram of the housing, ventilation grille, movable groove, sealing grille and pressure groove of the present invention; Figure 8 It is a partial structural diagram of the sealing grid, pressure groove, extrusion block and extrusion rod of the present invention.

[0020] In the figure: 1, housing; 101, cavity; 102, movable plate; 103, electric push rod; 104, support rod; 105, extension slot; 106, switch; 107, ventilation grille; 108, movable slot; 109, sealing grille; 110, pressure slot; 2. Support frame; 201. Filling chamber; 202. Filter plate; 203. Water inlet; 204. Sealing plate; 205. First extrusion spring; 206. Float; 3. Wiring member; 301. Extrusion groove; 302. Compression rod; 303. Threading groove; 304. Extrusion block; 305. Pull rope; 306. Extrusion rod; 307. Second extrusion spring. DETAILED DESCRIPTION

[0021] The present invention will be described and explained in detail below with reference to the accompanying drawings.

[0022] Example 1 like Figure 1-8 As shown, the construction engineering waterproof transformer includes a shell 1, two sets of support frames 2 are provided at the bottom end of the shell 1, a filling cavity 201 is opened in the support frame 2, and the filling cavity 201 is filled with polymer material particles. A filter plate 202 is fixedly provided on one side of the filling cavity 201, and a water inlet 203 is opened on the side of the filling cavity 201 close to the filter plate 202, and a sealing plate 204 is slidably provided in the water inlet 203, and the sealing plate 204 is used to seal the water inlet 203; Two groups of cavities 101 are respectively provided in the side walls of the shell 1 to cooperate with the two groups of filling cavities 201. A movable plate 102 is slidably provided inside the cavity 101. A plurality of electric push rods 103 are fixedly provided on the top of the movable plate 102. The top of the electric push rod 103 is fixedly connected to the top of the cavity 101. A plurality of support rods 104 are fixedly provided on the bottom end of the movable plate 102. The bottom end of the support rod 104 passes through the bottom wall of the cavity 101 and is fixedly connected to the top of the support frame 2. An extension groove 105 is provided at the bottom end of the support rod 104. The extension groove 105 is connected to the filling cavity 201, and a switch 106 is fixedly provided on the top of the extension groove 105. The switch 106 is electrically connected to the electric push rod 103, and the switch 106 is used to control the electric push rod 103.

[0023] Several first extrusion springs 205 are fixedly provided on the top of the sealing plate 204, and several floats 206 are fixedly provided on the side of the sealing plate 204 away from the filling cavity 201. The side wall of the support frame 2 close to the sealing plate 204 is provided with openings for the several floats 206, and the several floats 206 all pass through the openings of the support frame 2.

[0024] Through the above arrangement, when a flood comes, the rising water level can drive the float 206 to rise, and the rising float 206 can drive the fixedly connected sealing plate 204 to rise. After the sealing plate 204 rises a certain distance, the water inlet 203 is opened. At this time, water can pass through the water inlet 203 and be filtered by the filter plate 202 before entering the filling cavity 201 and contacting the polymer material particles. When the polymer material particles come into contact with water, they will expand rapidly. Some of the expanded polymer material particles enter the extension groove 105 and squeeze the switch 106. When the switch 106 is squeezed, it can control the electric push rod 103 to start working. The output end of the electric push rod 103 pushes the movable plate 102, squeezing the movable plate 102 and the top of the cavity 101. Since the movable plate 102 is fixedly connected to the top of the support frame 2 through the support rod 104, the electric push rod 103 can push the shell 1 to rise relative to the movable plate 102, thereby keeping the shell 1 away from the water surface and preventing water from entering the shell 1 and causing damage to the electronic components and coils.

[0025] A wiring member 3 is fixedly provided on the top of the inner walls on both sides of the shell 1, and an extrusion groove 301 is provided on the side of the wiring member 3 away from the cavity 101. Two groups of compression rods 302 are slidably provided on the upper and lower parts of the extrusion groove 301 close to the cavity 101, and the two groups of compression rods 302 pass through the top and bottom ends of the wiring member 3 respectively.

[0026] A wire threading groove 303 is provided through the pressure rod 302, and a second extrusion spring 307 is sleeved on the outer surface of the pressure rod 302. One end of the second extrusion spring 307 is fixedly connected to the pressure rod 302, and the other end of the second extrusion spring 307 is fixedly connected to the inner wall of the extrusion groove 301. The opposite sides of the two pressure rods 302 are in conflict with each other.

[0027] The wire threading grooves 303 provided in the two groups of the compression rods 302 are connected to each other. Wires are passed through and fixedly provided in the two groups of the wire threading grooves 303 , and the wires are fixedly connected in the two groups of the wire threading grooves 303 by bolts.

[0028] An extrusion block 304 is slidingly arranged in the extrusion groove 301, and the upper and lower sides of the extrusion block 304 close to one end of the pressure rod 302 are all inclined as a whole, and the opposite sides of the two groups of pressure rods 302 close to the side of the extrusion block 304 are all inclined as a whole, and the upper and lower sides of the extrusion block 304 close to one end of the pressure rod 302 are in conflict with the side of the opposite side of the pressure rod 302 close to the extrusion block 304.

[0029] A plurality of pull ropes 305 are fixedly provided at one end of the extrusion block 304 close to the cavity 101 , and one end of the pull ropes 305 away from the extrusion block 304 passes through the inner wall of the housing 1 and is fixedly connected to the top of the movable plate 102 .

[0030] Through the above arrangement, when the movable plate 102 rises a certain distance relative to the outer shell 1 until the pull rope 305 is tightened, the pull rope 305 no longer stretches. As the outer shell 1 continues to rise, the pull rope 305 can pull the extrusion block 304 to move toward the side close to the pressure rod 302. When the extrusion block 304 moves, it can squeeze the inclined surfaces of the two groups of pressure rods 302 through the inclined surfaces on the upper and lower sides, so that the two groups of pressure rods 302 move to their opposite sides and gradually separate, thereby disconnecting the wires fixedly connected in the two groups of wire threading grooves 303, cutting off the circuit and avoiding short circuits.

[0031] Two sets of ventilation grilles 107 are fixedly provided on both side walls of the housing 1 where no cavity 101 is provided, and four sets of movable grooves 108 are provided on the side walls of the housing 1 to match the four sets of ventilation grilles 107 , respectively. Sealing grilles 109 are slidably provided in the movable grooves 108 .

[0032] A pressure groove 110 is provided at the top of the sealing grille 109, and the pressure groove 110 is arranged in an inclined shape as a whole. Four groups of extrusion rods 306 are fixedly provided at the two ends of the two groups of extrusion blocks 304 to cooperate with the four groups of pressure grooves 110. The extrusion rods 306 are slidably set in the pressure groove 110, and the extrusion rods 306 can squeeze the inner wall of the pressure groove 110.

[0033] A sealing gasket is fixedly provided on one side of the sealing grille 109 close to the ventilation grille 107 , and the sealing gasket is used to seal the ventilation grille 107 .

[0034] Through the above arrangement, when the extrusion block 304 moves, it can drive the extrusion rod 306 fixedly connected to it to move. When the extrusion rod 306 moves, it can squeeze the inner wall of the pressure groove 110, thereby driving the sealing grille 109 to move downward. After the movement, the sealing grille 109 is misaligned with the air grille 107, thereby closing the opening on the air grille 107, preventing external water from entering the housing 1 through the air grille 107 and causing damage to the electronic components and coils.

[0035] Working principle and process: During operation, when the water level at the use location rises, the float 206 is driven to rise, and then the sealing plate 204 is driven to rise accordingly, and the water inlet 203 is automatically opened. The water is filtered by the filter plate 202 and enters the filling cavity 201. The polymer material particles swell when encountering water and enter the extension groove 105 to squeeze the switch 106. When the switch 106 is squeezed, the electric push rod 103 is controlled to start working; the electric push rod 103 pushes the shell 1 to rise relative to the moving plate 102, thereby automatically raising the height of the shell 1, so that the shell 1 is away from the water surface, and preventing water from entering the shell 1 and causing damage to the electronic components and coils; when the moving plate 102 rises a certain distance until the pull rope 305 is tightened, as the shell 1 continues to rise, the pull rope 305 can Pull the extrusion block 304 to move toward the side close to the pressure rod 302, and then squeeze the inclined surfaces on the opposite sides of the two groups of pressure rods 302 through the inclined surfaces on the upper and lower sides of the extrusion block 304, so that the two groups of pressure rods 302 move toward their opposite sides and gradually separate, thereby disconnecting the wires fixedly connected in the two groups of wire threading grooves 303, cutting off the circuit, stopping the transformer from working, and avoiding a short circuit; at the same time, when the extrusion block 304 moves, it can drive the extrusion rod 306 to move, and then squeeze the inner wall of the pressure groove 110, so that the sealing grille 109 moves downward, and the opening on the air grille 107 is closed, preventing external water from entering the housing 1 through the air grille 107 and damaging the electronic components and coils.

Claims

1. A waterproof transformer for construction engineering, comprising a housing (1), characterized in that: Two groups of support frames (2) are provided at the bottom end of the housing (1), a filling cavity (201) is provided in the support frame (2), the filling cavity (201) is filled with polymer material particles, a filter plate (202) is fixedly provided on one side of the filling cavity (201), and a water inlet (203) is provided on a side of the filling cavity (201) close to the filter plate (202), a sealing plate (204) is slidably provided in the water inlet (203), and the sealing plate (204) is used to seal the water inlet (203); Two groups of cavities (101) are respectively provided in the side walls of the housing (1) to cooperate with the two groups of filling cavities (201), and a movable plate (102) is slidably provided inside the cavity (101), and a plurality of electric push rods (103) are fixedly provided at the top of the movable plate (102), and the top of the electric push rod (103) is fixedly connected to the top of the cavity (101), and a plurality of support rods (104) are fixedly provided at the bottom end of the movable plate (102), and the bottom end of the support rod (104) passes through the bottom wall of the cavity (101) and is fixedly connected to the top of the support frame (2), and an extension groove (105) is provided at the bottom end of the support rod (104), and the extension groove (105) is connected to the filling cavity (201), and a switch (106) is fixedly provided at the top of the extension groove (105), and the switch (106) is electrically connected to the electric push rod (103), and the switch (106) is used to control the electric push rod (103).

2. The waterproof transformer for construction engineering according to claim 1, characterized in that: A plurality of first extrusion springs (205) are fixedly provided at the top end of the sealing plate (204), a plurality of floats (206) are fixedly provided on the side of the sealing plate (204) away from the filling cavity (201), and a side wall of the support frame (2) close to the sealing plate (204) is provided with openings of the plurality of floats (206), and the plurality of floats (206) all pass through the openings of the support frame (2).

3. The waterproof transformer for construction engineering according to claim 1, characterized in that: A terminal block (3) is fixedly provided on the top of the inner walls on both sides of the housing (1), and an extrusion groove (301) is provided on a side of the terminal block (3) away from the cavity (101). Two groups of compression rods (302) are slidably provided on the upper and lower parts of the extrusion groove (301) on a side close to the cavity (101), respectively, and the two groups of compression rods (302) respectively penetrate the top and bottom ends of the terminal block (3).

4. The waterproof transformer for construction engineering according to claim 3, characterized in that: A threading groove (303) is provided through the compression rod (302), and a second extrusion spring (307) is sleeved on the outer surface of the compression rod (302). One end of the second extrusion spring (307) is fixedly connected to the compression rod (302), and the other end of the second extrusion spring (307) is fixedly connected to the inner wall of the extrusion groove (301), and the opposite sides of the two compression rods (302) are in conflict with each other.

5. The waterproof transformer for construction engineering according to claim 4, characterized in that: The wire threading grooves (303) provided in the two groups of pressure rods (302) are connected to each other. Wires are passed through and fixedly provided in the two groups of wire threading grooves (303), and the wires are fixedly connected in the two groups of wire threading grooves (303) by bolts.

6. The waterproof transformer for construction engineering according to claim 4, characterized in that: An extrusion block (304) is slidably arranged in the extrusion groove (301), and the upper and lower sides of the extrusion block (304) close to one end of the pressure rod (302) are arranged in an inclined shape as a whole, and the sides of the opposite sides of the two groups of pressure rods (302) close to the extrusion block (304) are arranged in an inclined shape as a whole, and the upper and lower sides of the extrusion block (304) close to one end of the pressure rod (302) are in conflict with the side of the opposite side of the pressure rod (302) close to the extrusion block (304).

7. The waterproof transformer for construction engineering according to claim 6, characterized in that: A plurality of pull ropes (305) are fixedly provided on one end of the extrusion block (304) close to the cavity (101), and an end of the pull ropes (305) away from the extrusion block (304) passes through the inner wall of the housing (1) and is fixedly connected to the top end of the movable plate (102).

8. The waterproof transformer for construction engineering according to claim 6, characterized in that: Two sets of ventilation grilles (107) are fixedly provided on both side walls of the housing (1) where the cavity (101) is not provided, and four sets of movable grooves (108) are provided on the side walls of the housing (1) to match the four sets of ventilation grilles (107), respectively. Sealing grilles (109) are slidably provided in the movable grooves (108).

9. The waterproof transformer for construction engineering according to claim 8, characterized in that: A pressure groove (110) is provided on the top of the sealing grille (109), and the pressure groove (110) is arranged in an inclined shape as a whole. Four groups of extrusion rods (306) are fixedly provided at both ends of the two groups of extrusion blocks (304) to cooperate with the four groups of pressure grooves (110). The extrusion rods (306) are slidably provided in the pressure grooves (110), and the extrusion rods (306) can squeeze the inner wall of the pressure groove (110).

10. The waterproof transformer for construction engineering according to claim 9, characterized in that: A sealing gasket is fixedly provided on one side of the sealing grille (109) close to the ventilation grille (107), and the sealing gasket is used to seal the ventilation grille (107).

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