Shell type transformer

Abstract

The utility model discloses a shell-type transformer which comprises an outer protective box, a shell-type transformer body is arranged in an inner cavity of the outer protective box, a base is installed at the bottom of the shell-type transformer body, two symmetrical fixed rails are fixedly connected to the bottom of the inner cavity of the outer protective box, and sliding sleeves are connected to the surfaces of the fixed rails in a sliding mode. The top of the sliding sleeve is fixedly connected with the base. The rotating rod is driven to rotate clockwise by treading the pedal, the rotating rod drives the internal tooth ratchet wheel to rotate clockwise through the pawl, the internal tooth ratchet wheel drives the gear to rotate clockwise, the gear drives the rack to move forwards, the rack drives the shell type transformer to move forwards through the base, and after the pedal is reset, treading is carried out. And the shell-type transformer gradually moves forwards until the shell-type transformer is moved out of the outer protection box, so that the purposes that the transformer can slide to the outer side of the box and is convenient to maintain by adopting a reciprocating foot stepping mode can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to transformer technical field, especially, relate to a shell type transformer. BACKGROUND

[0002] Shell type transformer is used for converting high voltage electric energy into low voltage electric energy suitable for user use or for promoting voltage to realize long distance transmission in electric power transmission and distribution, and due to its high efficiency and low noise characteristics, it helps to improve the overall performance of the power system.

[0003] For some shell type transformers loaded in the box, the space in the box is relatively narrow, and maintenance is relatively inconvenient, thus we design a shell type transformer, which adopts reciprocating foot stepping mode, so that the transformer can slide to the outside of the box, and the maintenance is facilitated. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a shell type transformer, which has the advantages of adopting reciprocating foot stepping mode, so that the transformer can slide to the outside of the box, and the maintenance is facilitated, so as to solve the above background technical problems.

[0005] The technical scheme for solving the above technical problems is as follows: a shell type transformer, which comprises an outer protective box, a shell type transformer is arranged in the inner cavity of the outer protective box, a base is mounted at the bottom of the shell type transformer, two symmetrical fixed rails are fixedly connected to the bottom of the inner cavity of the outer protective box, a sliding sleeve is slidably connected to the surface of the fixed rail, the top of the sliding sleeve is fixedly connected with the base, a base block and a fixed plate are fixedly connected to the bottom of the inner cavity of the outer protective box, a rotating rod is rotatably connected between the base block and the fixed plate, an internal tooth ratchet wheel is rotatably connected to the left side of the fixed plate and is sleeved on the surface of the rotating rod, a gear is fixedly connected to the surface of the internal tooth ratchet wheel, and a rack is fixedly connected to the bottom of the base and is engaged with the gear.

[0006] Preferably, a rotating ring is fixedly connected to the surface of the rotating rod, a shaft pin is fixedly connected to one side of the rotating ring and is located in the inner cavity of the internal tooth ratchet wheel, and a pawl is rotatably connected to the surface of the shaft pin and is matched with the internal tooth ratchet wheel.

[0007] Preferably, the pawl and the shaft pin are rotatably connected through a torsional spring.

[0008] Preferably, a foot pedal is fixedly mounted on the surface of the rotating rod.

[0009] Preferably, a reset torsional spring is sleeved on the surface of the rotating rod, and the two ends of the reset torsional spring are fixedly connected with the base block and the foot pedal respectively.

[0010] The utility model has the advantages of:

[0011] 1. The utility model discloses a foot pedal drives rotating rod clockwise rotation, and rotating rod drives internal tooth ratchet clockwise rotation through pawl, and internal tooth ratchet drives gear clockwise rotation, and gear drives rack to move forward, and rack drives shell transformer to move forward through base, after foot pedal reset, then step on, and shell transformer moves gradually forward, until shell transformer removes outer protection box, can reach the purpose that adopts reciprocating foot pedal mode, can make transformer slide to the outside of box, and it is convenient to maintain,

[0012] 2. The utility model discloses a shaft pin and pawl are connected through torsional spring setting, in the process of rotating rod clockwise rotation, the pawl tip of cocked state can contact internal tooth ratchet inner wall, can resist internal tooth ratchet and rotate, when rotating rod counterclockwise rotates, the arc surface of pawl and the inner wall of internal tooth ratchet contact can make pawl rotate inward on the surface of shaft pin, when rotating to next cavity of internal tooth ratchet, the torsional spring on the surface of shaft pin can make pawl reverse and resist on the inner wall of internal tooth ratchet, make the tip of pawl facilitate next time and promote internal tooth ratchet and rotate. BRIEF DESCRIPTION OF DRAWINGS

[0013] The above and / or other aspects of the present utility model will become more apparent and more readily appreciated from the following detailed description, taken in conjunction with the accompanying drawings, of which:

[0014] Figure 1 It is a three-dimensional schematic view for an embodiment of the utility model;

[0015] Figure 2 It is a three-dimensional schematic view for rotating rod and fixed rail of an embodiment of the utility model;

[0016] Figure 3 It is a three-dimensional split schematic view for rotating rod and fixed plate of an embodiment of the utility model;

[0017] Figure 4 It is a three-dimensional schematic view for rotating rod and foot pedal of an embodiment of the utility model.

[0018] In the drawings, the component list represented by each sign is as follows:

[0019] 1, outer protection box, 2, shell transformer, 3, base, 4, fixed rail, 5, sliding sleeve, 6, base block, 7, fixed plate, 8, rotating rod, 9, internal tooth ratchet, 10, gear, 11, rack, 12, rotating ring, 13, shaft pin, 14, pawl, 15, foot pedal, 16, reset torsional spring. DETAILED DESCRIPTION

[0020] In the following, the embodiment of the shell transformer of the utility model will be described with reference to the drawings.

[0021] Figures 1-4 The shell type transformer shown in an embodiment of the utility model, it includes the outer protection case 1, the inner chamber of outer protection case 1 is provided with shell type transformer 2, the bottom of shell type transformer 2 is installed with base 3, the bottom of outer protection case 1 inner chamber is fixedly connected with two symmetrical fixed rail 4, the surface of fixed rail 4 is slidably connected with sliding sleeve 5, the top of sliding sleeve 5 is fixedly connected with base 3, the bottom of outer protection case 1 inner chamber is fixedly connected with base block 6 and fixed plate 7, between base block 6 and fixed plate 7, rotationally connected with rotating rod 8, the surface of rotating rod 8 is fixedly installed with footboard 15, the surface of rotating rod 8 is equipped with reset torsion spring 16, the both ends of reset torsion spring 16 are fixedly connected with base block 6 and footboard 15 respectively, the left side of fixed plate 7 is rotatably connected with internal tooth ratchet wheel 9 that is equipped in the surface of rotating rod 8, the surface of internal tooth ratchet wheel 9 is fixedly connected with gear 10, the bottom of base 3 is fixedly connected with rack 11 that is engaged with gear 10, the surface of rotating rod 8 is fixedly connected with rotating ring 12, one side of rotating ring 12 is fixedly connected with shaft pin 13 in the inner chamber of internal tooth ratchet wheel 9, the surface of shaft pin 13 is rotatably connected with pawl 14 that is adapted to internal tooth ratchet wheel 9, pawl 14 and shaft pin 13 are rotatably connected through torsion spring, through the setting of shaft pin 13 and pawl 14 through torsion spring connection, in the process of rotating rod 8 clockwise rotation, the tip of pawl 14 in the state of lifting will contact with the inner wall surface of internal tooth ratchet wheel 9, will resist the rotation of internal tooth ratchet wheel 9, when rotating rod 8 counterclockwise rotates, the arc surface of pawl 14 and the inner wall of internal tooth ratchet wheel 9 contact will make pawl 14 rotate inward on the surface of shaft pin 13, when rotating to the next cavity of internal tooth ratchet wheel 9, the torsion spring on the surface of shaft pin 13 will make pawl 14 reverse and resist on the inner wall of internal tooth ratchet wheel 9, so that the tip of pawl 14 is convenient for next time to push internal tooth ratchet wheel 9 to rotate.

[0022] Working principle: when the utility model is used, through stepping on footboard 15 to drive rotating rod 8 to rotate clockwise, footboard 15 makes the reset torsion spring 16 on the surface of rotating rod 8 stressed, and rotating rod 8 drives rotating ring 12, shaft pin 13 and pawl 14 to rotate, the tip of pawl 14 is resisted on the inner wall of internal tooth ratchet wheel 9 to drive internal tooth ratchet wheel 9 to rotate clockwise on fixed plate 7, and internal tooth ratchet wheel 9 drives gear 10 to rotate clockwise, and gear 10 drives rack 11 to move forward, and rack 11 drives shell type transformer 2 to move forward through base 3, and the restoring force of reset torsion spring 16 drives rotating rod 8 and footboard 15 to reset, and rotating rod 8 drives rotating ring 12, shaft pin 13 and pawl 14 to reverse, and pawl 14 enters the next cavity of internal tooth ratchet wheel 9 due to the torsion spring on the surface of shaft pin 13, and then steps on footboard 15, and shell type transformer 2 gradually moves forward until shell type transformer 2 moves out of the inner chamber of outer protection case 1, and the operation space is increased, and the outer protection case 1 is convenient to maintain.

[0023] In summary: the shell type transformer, through the foot pedal 15 drive rotating rod 8 clockwise rotation, rotating rod 8 is through the pawl 14 drive inner tooth ratchet 9 clockwise rotation, inner tooth ratchet 9 is drive gear 10 clockwise rotation, gear 10 is drive rack 11 forward movement, rack 11 is through the base 3 drive shell type transformer 2 forward movement, foot pedal 15 reset, then step, shell type transformer 2 is gradually forward movement, until the shell type transformer 2 moves out of the outer box 1, namely can reach the way of reciprocating foot pedal, can make the transformer slide to the outside of the box, for the purpose of maintenance.

Claims

1. A shell-type transformer, characterized in that, The device includes an outer protective box (1), an inner cavity of which is provided with a shell-type transformer (2), a base (3) installed at the bottom of the shell-type transformer (2), two symmetrical fixed rails (4) fixedly connected to the bottom of the inner cavity of the outer protective box (1), a sliding sleeve (5) slidably connected to the surface of the fixed rail (4), the top of the sliding sleeve (5) fixedly connected to the base (3), a base block (6) and a fixed plate (7) fixedly connected to the bottom of the inner cavity of the outer protective box (1), a rotating rod (8) rotatably connected between the base block (6) and the fixed plate (7), an internal tooth ratchet (9) sleeved on the surface of the rotating rod (8) rotatably connected to the left side of the fixed plate (7), a gear (10) fixedly connected to the surface of the internal tooth ratchet (9), and a rack (11) meshing with the gear (10) fixedly connected to the bottom of the base (3).

2. The shell-type transformer according to claim 1, characterized in that, A rotating ring (12) is fixedly connected to the surface of the rotating rod (8). A pin (13) located in the inner cavity of the internal tooth ratchet (9) is fixedly connected to one side of the rotating ring (12). A pawl (14) adapted to the internal tooth ratchet (9) is rotatably connected to the surface of the pin (13).

3. The shell-type transformer according to claim 2, characterized in that, The pawl (14) and the pin (13) are rotatably connected by a torsion spring.

4. The shell-type transformer according to claim 3, characterized in that, A foot pedal (15) is fixedly mounted on the surface of the rotating rod (8).

5. The shell-type transformer according to claim 4, characterized in that, The surface of the rotating rod (8) is fitted with a reset torsion spring (16), and the two ends of the reset torsion spring (16) are fixedly connected to the base block (6) and the foot pedal (15) respectively.

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