Lead-out wire structure of transformer

Abstract

The utility model discloses a transformer leading-out wire structure which comprises a mounting plate, a plurality of groups of through holes are formed in the mounting plate, cables penetrate through the through holes, a connecting cylinder is fixedly mounted on the mounting plate, the position of the connecting cylinder corresponds to that of the through holes, a fixing cylinder is in threaded connection with the outer portion of the connecting cylinder, and the fixing cylinder is in threaded connection with the mounting plate. Four sets of fixing blocks are movably arranged in the fixing cylinder, and the faces, close to each other, of the four sets of fixing blocks make contact with the outer surface of the cable. According to the utility model, the fixed cylinder is rotated to drive the fixed block to move, the arc-shaped surface of the fixed block is in contact with and extrudes the surface of the cable, so that the cable is fixed in the fixed cylinder, the inclined surface of the fixed block is arranged to fix cables with different cable diameters, and the connecting cylinders and the fixed cylinders are arranged in multiple groups. And other cables are not influenced when a single cable is removed, so that the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of transformer equipment, and particularly relates to a transformer lead-out wire structure. Background Technique

[0002] A transformer is a common power conversion device that uses electromagnetic induction to change the AC voltage. Its main components are the primary coil, secondary coil, and magnetic core. When the transformer is connected and used, multiple cables need to be led out from the inside for power transmission.

[0003] In order to further understand the transformer lead-out wire structure in the prior art, after retrieval, a Chinese patent with the publication number of CN210606854U discloses a transformer lead-out wire structure, which includes a baffle. A side baffle is arranged on one side of the baffle, and the side baffle is rotatably connected to the baffle on one side. Both sides of the baffle are connected to one side of the transformer body through a connecting mechanism. Multiple arc-shaped grooves are opened on the opposite sides of the side baffle and the baffle. The side baffle and the baffle are connected through a limiting mechanism. The limiting mechanism includes a plug board and a groove board. The groove board is fixed on one side of the baffle, the plug board is fixed on one side of the side baffle, and the plug board is inserted into the groove board. A limiting hole is opened on the plug board. A sleeve is fixed on one side of the groove board, a limiting rod is inserted into the sleeve, one end of the limiting rod passes through the groove board and the limiting hole and extends outwards, the other end of the limiting rod passes through the sleeve and is fixed with a pull rod, and a spring is sleeved on the limiting rod. One end of the spring is fixed on the limiting rod, and the other end of the spring is fixed on the side wall of the sleeve.

[0004] After exploration and analysis, the following disadvantages exist in the actual use of this patent: In this patent, the lead-out cables are fixed by the cooperation of the baffle and the side baffle with the arc-shaped grooves. Since the size of the arc-shaped grooves is fixed, only the cables that match the size of the arc-shaped grooves can be fixed in this patent, and cables with different wire diameters cannot be fixed. Moreover, when removing a single cable, other cables will also fall out of the arc-shaped grooves and get entangled together, making the practicality of the lead-out wire structure not high during actual use. Summary of the Utility Model

[0005] Aiming at the technical problem that the existing lead-out wire structure can only fix cables with a single wire diameter and has low practicality, the utility model provides a transformer lead-out wire structure.

[0006] The technical solution adopted by the utility model is: It includes a mounting plate, multiple groups of through holes are opened on the mounting plate, cables are passed through the through holes, a connecting cylinder is fixedly installed on the mounting plate, the position of the connecting cylinder corresponds to the through holes, a fixing cylinder is threadedly connected to the outside of the connecting cylinder, and four fixing blocks are movably arranged inside the fixing cylinder. The relatively close sides of the four fixing blocks are in contact with the outer surface of the cable.

[0007] Furthermore, a moving ring is slidably installed inside the fixed cylinder, and one side of the moving ring is slidably connected to one end of the fixed block close to the connecting cylinder.

[0008] By adopting the above technical solution, the stability of the fixed block when fixing the cable is improved.

[0009] Furthermore, four groups of limiting grooves are formed on one side of the moving ring close to the fixed block, limiting blocks are slidably installed in the limiting grooves, and the limiting blocks are fixedly connected to one end of the fixed block.

[0010] By adopting the above technical solution, the stability of the fixed block when moving is improved.

[0011] Furthermore, four groups of cavities are formed inside the moving ring, sliding plates are slidably installed in the four groups of cavities, the sliding plates are communicated with the limiting grooves, the sliding plates are fixedly connected to the limiting blocks, and springs are fixedly connected to one side of the sliding plates close to the cable.

[0012] By adopting the above technical solution, the use of the fixed block is facilitated.

[0013] Furthermore, four groups of installation grooves are formed at one end of the fixed cylinder far from the connecting cylinder, balls are movably arranged in the four groups of installation grooves, and the balls are in contact with the surface of the fixed block.

[0014] By adopting the above technical solution, the smoothness of the fixed block when being extruded and moved by the end face of the fixed cylinder is improved.

[0015] Furthermore, anti-slip strips are fixedly connected to the outside of the fixed cylinder.

[0016] By adopting the above technical solution, it is convenient to rotate the fixed cylinder.

[0017] Furthermore, connecting plates are fixedly installed on both sides of the mounting plate, and mounting holes are formed in the connecting plates.

[0018] By adopting the above technical solution, it is convenient to fix the mounting plate on the transformer body.

[0019] The beneficial effects of the present utility model are as follows: through the cooperation of the connecting cylinder, the fixed cylinder, the moving ring and the fixed block, rotating the fixed cylinder can drive the four groups of fixed blocks to move. The arc surface of the fixed block contacts and presses the surface of the cable, so as to fix the cable in the fixed cylinder. The inclined surface of the fixed block can fix cables with different wire diameters. Multiple groups of connecting cylinders and fixed cylinders are provided, and removing a single cable will not affect other cables, improving the practicability of the device;

[0020] By arranging a cavity, a sliding plate, a spring and a limiting block in the moving ring, when the fixed cylinder does not exert pressure on the fixed block, the spring can automatically reset the fixed block, which facilitates the removal and fixation of the cable and improves the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic perspective view of the present utility model;

[0022] Figure 2 is a schematic structural view of the connecting cylinder and the fixed cylinder in the present utility model;

[0023] Figure 3 is an assembly schematic view of the fixed block and the moving ring in the present utility model;

[0024] Figure 4 is a schematic cross-sectional structural view of the fixed cylinder in the present utility model.

[0025] The reference numerals in the figures are: 1, mounting plate; 2, connecting plate; 3, mounting hole; 4, connecting cylinder; 5, fixed cylinder; 6, anti-slip strip; 7, mounting groove; 8, ball; 9, fixed block; 10, cable; 11, moving ring; 12, cavity; 13, sliding plate; 14, spring; 15, limiting groove; 16, limiting block; 17, through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It 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, and therefore should not be construed as a limitation of the present utility model.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounting", "connecting" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The following further describes the present utility model in conjunction with the attached Figures 1-4 drawings.

[0029] In order to solve the problems existing in the background art, the present application proposes the following technical solutions: including a mounting plate 1, a plurality of through holes 17 are provided in the mounting plate 1, and a cable 10 is passed through the through holes 17. The multiple groups of through holes 17 are provided to facilitate the fixing of multiple groups of cables 10 respectively, avoiding the difficulty in distinguishing when multiple groups of cables 10 are fixed together and the heat accumulation is difficult to dissipate. In the present application, 15 groups of limiting grooves are provided in the through holes 17, and the number of through holes 17 can be increased or decreased according to actual needs. A connecting cylinder 4 is fixedly installed on the mounting plate 1, and the position of the connecting cylinder 4 corresponds to that of the through hole 17. The cable 10 passes through the through hole 17 and the connecting cylinder 4 and is led out from the transformer body.

[0030] An external thread of the connecting cylinder 4 is connected with a fixing cylinder 5. Four fixing blocks 9 are movably arranged inside the fixing cylinder 5. The cross-sectional shape of the fixing block 9 is approximately a right trapezoid. The relatively close sides of the four fixing blocks 9 are in contact with the outer surface of the cable 10. The side of the fixing block 9 close to the cable 10 is arc-shaped, which is convenient for contacting the surface of the cable 10. The number of the connecting cylinder 4, the fixing cylinder 5 and the through hole 17 is the same. When removing the cable 10 in a single through hole 17, it will not affect other cables 10, improving the practicability of the device.

[0031] The cable 10 passes through the through hole 17 and the connecting cylinder 4, then passes through the middle gap of the four fixing blocks 9 and the fixing cylinder 5. Move the fixing cylinder 5 to make it threadedly connected with the connecting cylinder 4. Rotate the fixing cylinder 5 to make the fixing cylinder 5 move towards the connecting cylinder 4. The end of the fixing cylinder 5 away from the connecting cylinder 4 contacts the inclined surface of the fixing block 9. As the fixing cylinder 5 moves, the fixing cylinder 5 drives the four fixing blocks 9 to move towards the cable 10 at the same time, so that the arc surface of the fixing block 9 contacts and presses the surface of the cable 10, thereby fixing the cable 10 between the four fixing blocks 9. At the same time, the inclined surface setting of the fixing block 9 can fix cables 10 with different diameters, improving the practicability of the device.

[0032] Furthermore, a moving ring 11 is slidably installed inside the fixing cylinder 5. One side of the moving ring 11 is slidably connected with one end of the fixing block 9 close to the connecting cylinder 4.

[0033] During the process of fixing the cable 10, as the fixing cylinder 5 rotates, one end of the connecting cylinder 4 abuts against the moving ring 11 to limit the movement of the moving ring 11, and the moving ring 11 limits the movement of the fixing block 9, avoiding the fixing block 9 moving inside the fixing cylinder 5 when the end of the fixing cylinder 5 away from the connecting cylinder 4 contacts and presses the inclined surface of the fixing block 9, improving the stability of the fixing block 9 when fixing the cable 10, and thus improving the fixing effect on the cable 10.

[0034] Furthermore, four limiting grooves 15 are provided on one side of the moving ring 11 close to the fixing block 9. Limiting blocks 16 are slidably installed in the limiting grooves 15, and the limiting blocks 16 are fixedly connected with one end of the fixing block 9.

[0035] The limiting groove 15 and the limiting block 16 cooperate to guide and limit the movement of the fixing block 9, improving the stability of the movement of the four groups of fixing blocks 9 and ensuring the smoothness when the fixing block 9 fixes the cable 10.

[0036] Furthermore, four cavities 12 are provided inside the moving ring 11. Slide plates 13 are slidably installed in the four cavities 12. The slide plates 13 communicate with the limiting grooves 15. The slide plates 13 are fixedly connected to the limiting blocks 16. A spring 14 is fixedly connected to the side of the slide plate 13 close to the cable 10.

[0037] The cavities 12 provide installation conditions for the slide plates 13 and the springs 14. When the fixing block 9 moves to fix the cable 10, the fixing block 9 drives the limiting block 16 to move, the limiting block 16 drives the slide plate 13 to move, and the slide plate 13 compresses the spring 14. When removing the cable 10, the fixing cylinder 5 is rotated counterclockwise, and the compressed spring 14 pushes the slide plate 13 to move away from the cable 10 to drive the fixing block 9 to move away from the cable 10 through the limiting block 16, facilitating the removal of the cable 10. Between fixing the cables 10, the spring 14 keeps the gap between the four groups of fixing blocks 9 at the maximum, facilitating the cable 10 to pass through the gap and improving the convenience of using the device.

[0038] Furthermore, four installation grooves 7 are provided at the end of the fixing cylinder 5 far from the connecting cylinder 4. Balls 8 are movably arranged in the four installation grooves 7. The balls 8 are in contact with the surface of the fixing block 9.

[0039] The balls 8 are placed in the installation grooves 7 and the installation grooves 7 restrict the balls 8, enabling the balls 8 to only move in the installation grooves 7. Through the arrangement of the balls 8, the sliding friction between the inclined surface of the fixing block 9 and the end face of the fixing cylinder 5 is changed to the rolling friction between the balls 8 and the inclined surface of the fixing block 9, reducing the friction force between the end face of the fixing block 9 and the fixing cylinder 5 and making the process of the end face of the fixing cylinder 5 squeezing the fixing block 9 to move smoother, facilitating the use of the device.

[0040] Furthermore, an anti-slip strip 6 is fixedly connected to the outside of the fixing cylinder 5.

[0041] The setting of the anti-slip strip 6 increases the friction force between the hand or tool and the outer peripheral surface of the fixing cylinder 5, making it more labor-saving to rotate the fixing cylinder 5 and improving the convenience of using the device.

[0042] Furthermore, connecting plates 2 are fixedly installed on both sides of the mounting plate 1. Mounting holes 3 are provided on the connecting plates 2.

[0043] The connecting plates 2 are in an "L" shape. The mounting holes 3 are arranged at the horizontal parts of the connecting plates 2. The connecting plates 2 and the mounting plate 1 are fixed on the surface of the transformer body by bolts passing through the mounting holes 3, facilitating the installation of the mounting plate 1.

[0044] The specific operation and use are as follows: The connecting plate 2 and the mounting plate 1 are fixed on the surface of the transformer body by bolts passing through the mounting holes 3. The cable 10 passes through the through hole 17 and the connecting cylinder 4, then passes through the gaps between the four groups of fixing blocks 9 and the fixing cylinder 5. Move the fixing cylinder 5 to thread it with the connecting cylinder 4. Rotate the fixing cylinder 5 to move the fixing cylinder 5 in the direction close to the connecting cylinder 4. One end of the fixing cylinder 5 away from the connecting cylinder 4 contacts the inclined surface of the fixing block 9. As the fixing cylinder 5 moves, the fixing cylinder 5 drives the four groups of fixing blocks 9 to move towards the cable 10 at the same time, so that the arc surface of the fixing block 9 contacts and presses the surface of the cable 10, thereby fixing the cable 10 between the four groups of fixing blocks 9.

[0045] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0046] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A transformer lead wire structure, characterized in that: The invention comprises a mounting plate (1), wherein a plurality of through holes (17) are formed on the mounting plate (1), wherein cables (10) are passed through the through holes (17), wherein a connecting tube (4) is fixedly mounted on the mounting plate (1), wherein the position of the connecting tube (4) corresponds to the through hole (17), wherein the external thread of the connecting tube (4) is connected to a fixing tube (5), wherein four groups of fixing blocks (9) are movably arranged inside the fixing tube (5), and relatively close sides of the four groups of fixing blocks (9) are in contact with the outer surface of the cable (10).

2. A transformer lead wire structure according to claim 1, characterized in that: A moving ring (11) is slidably mounted inside the fixed cylinder (5), and one side of the moving ring (11) is slidably connected to an end of the fixed block (9) close to the connecting cylinder (4).

3. A transformer lead wire structure according to claim 2, characterized in that: Four groups of limit grooves (15) are provided on one side of the movable ring (11) close to the fixed block (9), and a limit block (16) is slidably installed in the limit groove (15), and the limit block (16) is fixedly connected to one end of the fixed block (9).

4. A transformer lead wire structure according to claim 3, characterized in that: Four groups of cavities (12) are provided inside the movable ring (11), and slide plates (13) are slidably installed in the four groups of cavities (12). The slide plates (13) are connected to the limiting grooves (15), and the slide plates (13) are fixedly connected to the limiting blocks (16). A spring (14) is fixedly connected to one side of the slide plate (13) close to the cable (10).

5. A transformer lead wire structure according to claim 4, characterized in that: Four groups of mounting grooves (7) are formed on one end of the fixing tube (5) away from the connecting tube (4), and balls (8) are movably arranged in each of the four groups of mounting grooves (7), and the balls (8) are in contact with the surface of the fixing block (9).

6. A transformer lead wire structure according to claim 5, characterized in that: An anti-slip strip (6) is fixedly connected to the outside of the fixing cylinder (5).

7. A transformer lead wire structure according to claim 5, characterized in that: Connecting plates (2) are fixedly mounted on both sides of the mounting plate (1), and mounting holes (3) are provided on the connecting plates (2).

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