Bottom shell structure of network transformer

Abstract

The utility model relates to a network transformer bottom shell structure which comprises a bottom shell body, a transformer outer shell is arranged at the top of the bottom shell body, the top face of the bottom shell body is attached to the bottom face of the transformer outer shell, and the front side and the rear side of the left side and the right side of the bottom shell body are fixedly connected with first connecting boxes. Second connecting boxes are fixedly connected to the positions, close to the bottom, of the front side and the rear side of the left side and the right side of the transformer shell, and all the parts are matched with one another, so that the transformer shell and the bottom shell body can be conveniently mounted and dismounted, tools do not need to be used for operation, operation is easy and convenient, and therefore the overhauling efficiency of the transformer is improved; the two-way screw rod can be rotated by twisting the handle, and the two connecting plates move oppositely through rotation of the two-way screw rod, so that the two inserting rods are inserted into the inserting holes in the front side and the rear side correspondingly, the second connecting box is further fixed, and the stability of the transformer shell installed on the bottom shell body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a bottom shell structure of a network transformer. Background Art

[0002] The bottom shell of the transformer plays multiple roles in the transformer, such as protecting the internal circuit, isolating external interference, dissipating heat, and providing aesthetic decoration. Specifically, the bottom shell can prevent external dust, moisture and other factors from interfering with the normal operation of the transformer. There are two types of transformers. One is an integrated transformer, where the bottom shell of the transformer and the outer shell are die-casted as one. This design enables the transformer to have a completely closed magnetic circuit characteristic, good shielding effect, simple structure, and reduced design cost. The other is a non-integrated transformer, where the bottom shell of the transformer and the outer shell are manufactured separately, and then combined together by connection, which can be disassembled, making it convenient for operators to detect or repair the internal components of the power transformer.

[0003] At present, the bottom shell of the existing non-integrated transformer is generally installed by bolts during installation. Not only are there many bolts, but installation and removal both require the use of tools such as wrenches or sockets, which is troublesome to operate and reduces the efficiency of transformer maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide a network transformer bottom shell structure to solve the problems mentioned in the above background technology.

[0005] The technical solution of the utility model is a network transformer bottom shell structure, including a bottom shell body, a transformer shell is arranged on the top of the bottom shell body, the top surface of the bottom shell body is fitted with the bottom surface of the transformer shell, the front and rear sides of the left and right sides of the bottom shell body are fixedly connected with a first connection box, the front and rear sides of the left and right sides of the transformer shell and near the bottom are fixedly connected with a second connection box, the first connection box and the second connection box are respectively top and bottom opening structures, the front and rear sides of the top surface of the inner wall of the second connection box are fixedly connected with a connecting rod, and the bottoms of the two connecting rods are Penetrating into the inside of the first connecting box, the bottom surfaces of the two connecting rods are fixedly connected with fixed blocks, and the middle parts of the two fixed blocks are provided with fixed grooves. The front and rear sides of the first connecting box away from the bottom shell body are provided with movable holes, and movable rods are movably sleeved in the two movable holes. The end surfaces of the two movable rods close to the bottom shell body are fixedly connected with plug blocks, and the two plug blocks are respectively inserted in adjacent fixing grooves. The end surfaces of the two movable rods away from the plug blocks are commonly fixedly connected with a pull plate, and the middle part of the pull plate away from the movable rod is fixedly connected with a pull ring.

[0006] In one embodiment, a spring is sleeved on the surface of the movable rod, one end of the spring is fixedly connected to a side of the plug block close to the movable rod, the other end of the spring is fixedly connected to a side of the inner wall of the first connecting box away from the bottom shell body, the bottom surface of the fixed block is fixedly connected with an arc block, and the side of the plug block close to the bottom shell body is an inclined surface.

[0007] In one embodiment, a support block is fixedly connected to the middle of the bottom surface of the inner wall of the first connection box, a connection block is fixedly connected to the top surface of the support block, and sockets are provided on the front and rear sides of the connection block.

[0008] In one embodiment, the front and rear sides of the top surface of the inner wall of the second connection box are fixedly connected with a top plate, the facing surfaces of the two top plates are commonly bearing-connected with a bidirectional screw, the front and rear ends of the surfaces of the bidirectional screw are threadedly sleeved with connecting plates, the bottoms of the two connecting plates penetrate into the inner cavity of the first connection box and are located on the front and rear sides of the connection block, and the facing surfaces of the two connecting plates and near the bottom are provided with plug rods, and the two plug rods are respectively inserted into adjacent sockets.

[0009] In one embodiment, a driven bevel gear is fixedly sleeved in the middle of the surface of the bidirectional screw, a through hole is opened in the middle of the top of the second connecting box, a rotating shaft is sleeved on the bearing in the through hole, a driving bevel gear is fixedly connected to the lower end face of the rotating shaft, the driving bevel gear and the driven bevel gear are meshed with each other, and a handle is fixedly connected to the upper end face of the rotating shaft.

[0010] In one embodiment, movable holes are opened in the middle of the two connecting plates, and guide rods are movably sleeved in the two movable holes. The front and rear end surfaces of the guide rods are respectively fixedly connected to the facing surfaces of the two adjacent fixed blocks.

[0011] In one embodiment, the facing surfaces of the two front and rear fixing blocks are fixedly connected with a reinforcing plate, a movable opening is opened in the middle of the reinforcing plate, the movable opening is adapted to the two connecting plates, and the supporting block is movably sleeved in the movable opening.

[0012] In one embodiment, the front and rear sides and left and right sides of the top surface of the bottom shell body are fixedly connected with plug-ins, the front and rear sides and left and right sides of the bottom surface of the transformer shell are fixedly connected with slots, and the four plug-ins are respectively inserted into adjacent slots.

[0013] The beneficial effects provided by the utility model are:

[0014] Through the cooperation between the various components, the transformer casing and the bottom shell body can be easily installed and disassembled without the use of tools. The operation is relatively simple, thereby improving the efficiency of transformer maintenance. The bidirectional screw can be rotated by twisting the handle. The rotation of the bidirectional screw causes the two connecting plates to move toward each other, so that the two plug rods are respectively inserted into the jacks on the front and rear sides, further fixing the second connecting box, and improving the stability of the transformer casing installed on the bottom shell body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 It is the main cross-sectional view of the utility model;

[0017] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0018] Figure 4 It is the front view of the utility model;

[0019] Figure 5 It is a side sectional view of the first connection box and the second connection box.

[0020] In the accompanying drawings, 1, the bottom shell body; 2, the transformer shell; 3, the first connection box; 4, the second connection box; 5, the connecting rod; 6, the fixed block; 7, the fixed groove; 8, the movable rod; 9, the plug block; 10, the pull plate; 11, the pull ring; 12, the spring; 13, the arc block; 14, the support block; 15, the connecting block; 16, the jack; 17, the top plate; 18, the bidirectional screw; 19, the connecting plate; 20, the plug rod; 21, the driven bevel gear; 22, the rotating shaft; 23, the active bevel gear; 24, the guide rod; 25, the reinforcement plate; 26, the movable opening; 27, the plug plate; 28, the slot. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0022] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] In one embodiment, Figure 1-5 As shown, a network transformer bottom shell structure comprises a bottom shell body 1, a transformer shell 2 is arranged on the top of the bottom shell body 1, the top surface of the bottom shell body 1 is fitted with the bottom surface of the transformer shell 2, the front and rear sides of the left and right sides of the bottom shell body 1 are fixedly connected with a first connection box 3, the front and rear sides of the left and right sides of the transformer shell 2 and near the bottom are fixedly connected with a second connection box 4, the first connection box 3 and the second connection box 4 are respectively a top and bottom opening structure, the front and rear sides of the inner wall top surface of the second connection box 4 are fixedly connected with a connecting rod 5, and the bottoms of the two connecting rods 5 are both penetrated to the first connection Inside the box 3, the bottom surfaces of the two connecting rods 5 are fixedly connected with fixed blocks 6, and the middle parts of the two fixed blocks 6 are provided with fixed grooves 7. The front and rear sides of the first connecting box 3 away from the bottom shell body 1 are provided with movable holes, and movable rods 8 are movably sleeved in the two movable holes. The end surfaces of the two movable rods 8 close to the bottom shell body 1 are fixedly connected with plug blocks 9, and the two plug blocks 9 are respectively inserted into adjacent fixed grooves 7. The end surfaces of the two movable rods 8 away from the plug blocks 9 are commonly fixedly connected with a pull plate 10, and the middle part of the pull plate 10 away from the movable rod 8 is fixedly connected with a pull ring 11.

[0024] In order to enable the plug block 9 to be automatically inserted into the fixing groove 7 on the fixing block 6 when the transformer housing 2 is installed on the bottom shell body 1, a spring 12 is sleeved on the surface of the movable rod 8, one end of the spring 12 is fixedly connected to the side of the plug block 9 close to the movable rod 8, and the other end of the spring 12 is fixedly connected to the side of the inner wall of the first connecting box 3 away from the bottom shell body 1, an arc block 13 is fixedly connected to the bottom surface of the fixing block 6, and the side of the plug block 9 close to the bottom shell body 1 is an inclined surface.

[0025] In order to further fix the second connecting box 4 on the first connecting box 3 and improve the stability of the transformer casing 2 installed on the bottom shell body 1, a support block 14 is fixedly connected to the middle part of the bottom surface of the inner wall of the first connecting box 3, and a connecting block 15 is fixedly connected to the top surface of the support block 14. The front and rear sides of the connecting block 15 are provided with insertion holes 16, and the front and rear sides of the top surface of the inner wall of the second connecting box 4 are fixedly connected with a top plate 17, and the facing surfaces of the two top plates 17 are commonly bearing-connected with a bidirectional screw 18, and the front and rear ends of the surfaces of the bidirectional screw 18 are threadedly sleeved with connecting plates 19, and the bottoms of the two connecting plates 19 penetrate into the inner cavity of the first connecting box 3 and are located on the front and rear sides of the connecting block 15, and the facing surfaces of the two connecting plates 19 and near the bottom are provided with plug rods 20, which are respectively inserted into adjacent plug holes 16.

[0026] In order to facilitate the driving of the bidirectional screw 18 to rotate, a driven bevel gear 21 is fixedly sleeved in the middle of the surface of the bidirectional screw 18, a through hole is opened in the middle of the top of the second connecting box 4, and a rotating shaft 22 is sleeved on the bearing in the through hole. The lower end surface of the rotating shaft 22 is fixedly connected to a driving bevel gear 23, and the driving bevel gear 23 and the driven bevel gear 21 are meshed with each other. The upper end surface of the rotating shaft 22 is fixedly connected to a handle.

[0027] In order to limit the connecting plate 19 so that the connecting plate 19 does not rotate with the bidirectional screw 18, movable holes are opened in the middle of the two connecting plates 19, and a guide rod 24 is movably sleeved in the two movable holes. The front and rear end faces of the guide rod 24 are fixedly connected to the facing surfaces of the two adjacent fixed blocks 6 respectively.

[0028] In order to connect the two fixing blocks 6 together and improve the stability of the fixing blocks 6, a reinforcing plate 25 is fixedly connected to the facing surfaces of the two front and rear fixing blocks 6. A movable opening 26 is opened in the middle of the reinforcing plate 25. The movable opening 26 is adapted to the two connecting plates 19, and the support block 14 is movably sleeved in the movable opening 26.

[0029] In order to limit the front-to-back and left-to-right movement of the transformer housing 2 when it is installed on the bottom housing body 1, plug plates 27 are fixedly connected to the front and rear sides and left and right sides of the top surface of the bottom housing body 1, and slots 28 are fixedly connected to the front and rear sides and left and right sides of the bottom surface of the transformer housing 2, and four plug plates 27 are respectively inserted into adjacent slots 28.

[0030] Working principle: When the utility model is used, first twist the handle to rotate the rotating shaft 22, the rotating shaft 22 drives the active bevel gear 23 to rotate, the active bevel gear 23 drives the driven bevel gear 21 to rotate, the driven bevel gear 21 drives the bidirectional screw 18 to rotate, the bidirectional screw 18 rotates to make the two connecting plates 19 move apart, so that the two plug rods 20 are pulled out from the front and rear side sockets 16, and then pull the pull ring 11, the pull ring 11 drives the pull plate 10 to move, the pull plate 10 drives the movable rod 8 to move, the movable rod 8 drives the plug block 9 to move, so that the plug block 9 is pulled out from the fixing groove 7 on the fixing block 6, the fixing of the fixing block 6 is released, and the fixing between the first connection box 3 and the second connection box 4 is released. At this time, the transformer housing 2 can be lifted upward to remove it from the bottom shell body 1, and the transformer housing 2 is installed on the bottom shell body 1 When the plug plate 27 is inserted into the slot 28, the front and rear and left and right movements of the transformer housing 2 can be limited. Multiple fixing blocks 6 will be respectively inserted into the adjacent first connection boxes 3. When the fixing blocks 6 are lowered, the arc block 13 at the bottom will contact the inclined surface of the plug block 9, pushing the plug block 9 to the side away from the bottom shell body 1. When the plug block 9 corresponds to the fixing groove 7 on the fixing block 6, the elastic potential energy of the spring 12 will push the plug block 9 to reset, so that the plug block 9 is inserted into the fixing groove 7, fixing the fixing block 6, thereby fixing the second connection box 4, and fixing the transformer housing 2 on the bottom shell body 1. Then, the handle is twisted in the opposite direction, so that the two insertion rods 20 can move toward each other and be inserted into the front and rear side jacks 16 respectively, so as to further fix the second connection box 4 and improve the stability of the transformer housing 2 installed on the bottom shell body 1.

[0031] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A network transformer bottom shell structure, characterized in that: The utility model comprises a bottom shell body, a transformer shell is arranged on the top of the bottom shell body, the top surface of the bottom shell body is fitted with the bottom surface of the transformer shell, the front and rear sides of the left and right sides of the bottom shell body are fixedly connected with a first connection box, the front and rear sides of the left and right sides of the transformer shell and near the bottom are fixedly connected with a second connection box, the first connection box and the second connection box are respectively top and bottom opening structures, the front and rear sides of the top surface of the inner wall of the second connection box are fixedly connected with a connecting rod, the bottoms of the two connecting rods are penetrated into the first connection box, the bottom surfaces of the two connecting rods are fixedly connected with a fixing block, the middle parts of the two fixing blocks are provided with a fixing groove, the front and rear sides of the first connection box away from the bottom shell body are provided with a movable hole, the two movable holes are movably sleeved with movable rods, the end surfaces of the two movable rods close to the bottom shell body are fixedly connected with plug blocks, the two plug blocks are respectively inserted in adjacent fixing grooves, the end surfaces of the two movable rods away from the plug blocks are commonly fixedly connected with a pull plate, and the middle part of the pull plate away from the movable rod is fixedly connected with a pull ring.

2. A network transformer bottom shell structure as claimed in claim 1, characterized in that: A spring is sleeved on the surface of the movable rod, one end of the spring is fixedly connected to a side of the plug block close to the movable rod, the other end of the spring is fixedly connected to a side of the inner wall of the first connecting box away from the bottom shell body, the bottom surface of the fixed block is fixedly connected to an arc block, and the side of the plug block close to the bottom shell body is an inclined surface.

3. A network transformer bottom shell structure as claimed in claim 1, characterized in that: A support block is fixedly connected to the middle of the bottom surface of the inner wall of the first connection box, a connection block is fixedly connected to the top surface of the support block, and sockets are provided on the front and rear sides of the connection block.

4. A network transformer bottom shell structure as claimed in claim 1, characterized in that: The front and rear sides of the top surface of the inner wall of the second connection box are fixedly connected with a top plate, the facing surfaces of the two top plates are commonly bearingly connected with a bidirectional screw, the front and rear ends of the surfaces of the bidirectional screw are threadedly sleeved with connecting plates, the bottoms of the two connecting plates penetrate into the inner cavity of the first connection box and are located on the front and rear sides of the connection block, and the facing surfaces of the two connecting plates and near the bottom are provided with plug rods, and the two plug rods are respectively inserted into adjacent sockets.

5. A network transformer bottom shell structure as claimed in claim 4, characterized in that: A driven bevel gear is fixedly sleeved in the middle of the surface of the bidirectional screw, a through hole is opened in the middle of the top of the second connecting box, a rotating shaft is sleeved on the bearing in the through hole, a driving bevel gear is fixedly connected to the lower end surface of the rotating shaft, the driving bevel gear and the driven bevel gear are meshed with each other, and a handle is fixedly connected to the upper end surface of the rotating shaft.

6. A network transformer bottom shell structure as claimed in claim 4, characterized in that: The middle parts of the two connecting plates are both provided with movable holes, and guide rods are movably sleeved in the two movable holes. The front and rear end surfaces of the guide rods are respectively fixedly connected to the facing surfaces of the two adjacent fixed blocks.

7. A network transformer bottom shell structure as claimed in claim 3, characterized in that: The facing surfaces of the two front and rear fixed blocks are commonly fixedly connected with a reinforcing plate, a movable opening is opened in the middle of the reinforcing plate, the movable opening is adapted to the two connecting plates, and the supporting block is movably sleeved in the movable opening.

8. A network transformer bottom shell structure as claimed in claim 1, characterized in that: The front and rear sides and the left and right sides of the top surface of the bottom shell body are fixedly connected with plug boards, and the front and rear sides and the left and right sides of the bottom surface of the transformer shell are fixedly connected with slots, and the four plug boards are respectively inserted in adjacent slots.

Images