Dry-type transformer convenient to overhaul

Abstract

The utility model relates to the technical field of dry-type transformers, and particularly discloses a dry-type transformer convenient to overhaul, which comprises a transformer body, a cover plate is arranged at the top of the transformer body, first connecting blocks are fixedly connected to the left end face and the right end face of the transformer body, and second connecting blocks are fixedly connected to the left end face and the right end face of the cover plate. A fixing ring is fixedly connected to the interior of the first connecting block, a first sliding rod is slidably connected to the inner wall of the fixing ring, a fixing block is fixedly connected to the upper end face of the first sliding rod, a sliding block matched with the first fixing block is slidably connected to the outer wall of the first sliding rod, and a butt joint groove matched with the sliding block is formed in the lower end face of the fixing block; through cooperation of the first connecting block, the second connecting block, the fixing ring, the first sliding rod, the limiting ring, the supporting ring, a fixing block, a sliding block, a clamping rod, a second sliding rod, a spring, a sleeve and a plug pin, the cover plate and the transformer body can be connected in a clamping mode, the cover plate is convenient to mount and dismount, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, and particularly discloses a dry-type transformer that is easy to maintain. Background Art

[0002] A dry-type transformer refers to a transformer whose core and windings are not immersed in insulating oil. It is widely used in local lighting, high-rise buildings, airport and dock CNC machinery and equipment, etc. Dry-type transformers are safe, fireproof, pollution-free, have high mechanical strength, strong short-circuit resistance, low partial discharge, good thermal stability, high reliability and long service life.

[0003] Existing dry-type transformers require regular maintenance during use. Since the cover and the transformer are installed with multiple sets of bolts, the multiple sets of bolts need to be opened one by one during maintenance, which is inconvenient to disassemble and has a certain adverse effect on people's use process. Therefore, a dry-type transformer that is easy to maintain is needed to solve this problem. Utility Model Content

[0004] The utility model provides a dry-type transformer which is easy to maintain. The cover plate is clamped and fixed to the transformer, so the installation and disassembly are convenient.

[0005] The utility model is achieved in this way: a dry-type transformer that is easy to maintain includes a transformer body, a cover plate is provided on the top of the transformer body, the left and right end surfaces of the transformer body are fixedly connected to the first connecting block, the left and right end surfaces of the cover plate are fixedly connected to the second connecting block, the interior of the first connecting block is fixedly connected to a fixing ring, the inner wall of the fixing ring is slidably connected to a first sliding rod, the upper end surface of the first sliding rod is fixedly connected to the fixing block, the outer wall of the first sliding rod is slidably connected to a sliding block matching the first fixing block, the lower end surface of the fixing block is provided with a docking groove matching the sliding block, the outer wall of the first sliding rod is fixedly connected to a supporting ring, and the supporting ring is located below the sliding block;

[0006] Two sliding grooves symmetrically distributed front and back are provided inside the second connecting block, and the interiors of the two sliding grooves are slidably connected with a card block, and the outer walls of the two card blocks facing away from each other are fixedly connected with a second sliding rod, and the outer walls of the two second sliding rods are sleeved with a spring.

[0007] In order to facilitate the limiting of the first slide bar, as a preferred dry-type transformer that is easy to maintain of the present invention, the outer wall of the first slide bar is fixedly connected to a limiting ring, and a limiting groove matching the limiting ring is provided inside the first connecting block.

[0008] In order to prevent the block from falling out of the slide groove, as a preferred dry-type transformer easy to maintain of the present invention, the second slide bar extends to the outside of the second connecting block away from one end of the first slide bar and is fixedly connected to the limiting block.

[0009] In order to facilitate pushing and pulling of the first slide bar, as a preferred dry-type transformer that is easy to maintain according to the present invention, a button is fixedly connected to the lower end surface of the first slide bar.

[0010] In order to facilitate the fixing of the first slide rod, as a preferred dry-type transformer that is easy to maintain in the present invention, the lower end face of the first connecting block is fixedly connected to a sleeve, the interior of the sleeve is slidably connected to a pin, and the outer wall of the first slide rod is provided with a through hole.

[0011] In order to facilitate squeezing the clamping block toward both sides when the fixed block and the sliding block move up and down, as a preferred embodiment of the dry-type transformer that is easy to maintain of the present invention, the clamping block has an end close to the first sliding rod that is inclined.

[0012] In order to prevent the block from rotating, as a preferred embodiment of the dry-type transformer of the present invention that is easy to maintain, the longitudinal cross-section of the chute along the left-right direction is rectangular.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The dry-type transformer, which is easy to maintain, can connect the cover plate and the transformer body by snapping together through the cooperation of the first connecting block, the second connecting block, the fixing ring, the first sliding rod, the limiting ring, the supporting ring, the fixing block, the sliding block, the clamping rod, the second sliding rod, the spring, the sleeve and the latch, so that the cover plate can be easily installed and removed, and maintenance is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structural diagram of a dry-type transformer that is easy to maintain in the utility model;

[0016] Figure 2 It is a left side cross-sectional view of the first connecting block and the second connecting block of the utility model;

[0017] Figure 3 This is a structural diagram of the first sliding rod of the utility model.

[0018] In the figure, 1. transformer body; 2. cover plate; 3. first connecting block; 4. second connecting block; 5. fixing ring; 6. first sliding rod; 7. limiting ring; 8. supporting ring; 9. fixing block; 10. sliding block; 11. docking groove; 12. sliding groove; 13. clamping block; 14. second sliding rod; 15. limiting block; 16. spring; 17. button; 18. sleeve; 19. limiting groove; 20. latch; 21. through hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0021] See also Figure 1-3 A dry-type transformer that is easy to maintain includes a transformer body 1, a cover plate 2 is provided on the top of the transformer body 1, the left and right end surfaces of the transformer body 1 are fixedly connected with a first connecting block 3, the left and right end surfaces of the cover plate 2 are fixedly connected with a second connecting block 4, the inside of the first connecting block 3 is fixedly connected with a fixing ring 5, the inner wall of the fixing ring 5 is slidably connected with a first slide rod 6, the upper end surface of the first slide rod 6 is fixedly connected with a fixing block 9, the outer wall of the first slide rod 6 is slidably connected with a sliding block 10 that matches the first fixing block 9, the lower end surface of the fixing block 9 is provided with a docking groove 11 that matches the sliding block 10, the outer wall of the first slide rod 6 is fixedly connected with a support ring 8, and the support ring 8 is located below the sliding block 10;

[0022] The interior of the second connecting block 4 is provided with two symmetrically distributed sliding grooves 12, the interiors of the two sliding grooves 12 are slidably connected with a clamping block 13, the outer walls of the two clamping blocks 13 facing away from each other are fixedly connected with a second sliding rod 14, and the outer walls of the two second sliding rods 14 are sleeved with a spring 16.

[0023] In this embodiment: when removing the cover plate 2, the latch 20 is pulled out from the sleeve 18, and the first slide bar 6 is pushed upward. The first slide bar 6 drives the support ring 8 to move upward, and then drives the sliding block 10 to move upward. When the sliding block 10 moves upward, it squeezes the card blocks 13 on both sides, so that the sliding block 10 moves to the upper side of the card blocks 13. The two card blocks 13 move relative to each other under the elastic force of the spring 16, and lift the sliding block 10. Then, the first slide bar 6 is pulled downward. The first slide bar 6 drives the fixed block 9 to move downward, and then the fixed block 9 and the sliding block 10 are docked together. Continue to pull the first slide bar 6 downward, and the sliding block 10 and the fixed block 9 are driven to move together to the card block 1 3, at this time, the card block 13 is disengaged from the fixed block 9, and the cover plate 2 can be removed. When installing the cover plate 2, first insert the pin 20 into the sleeve 18 and the through hole 21 to fix the first slide bar 6, and then directly cover the cover plate 2 on the transformer body 1, so that the fixed block 9 is inserted into the second connecting block 4. When the fixed block 9 is inserted into the second connecting block 4, the card block 13 is squeezed to both sides, so that the card block 13 moves to the lower side of the fixed block 9. At this time, the card block 13 is stuck under the fixed block 9 under the elastic force of the spring 16, thereby fixing the cover plate 2 and the transformer body 1. The utility model fixes the cover plate 2 and the transformer body 1 by means of a card connection, which is convenient for installation and removal of the cover plate 2 and convenient maintenance.

[0024] As a technical optimization solution of the present invention, the outer wall of the first slide rod 6 is fixedly connected to the limit ring 7 , and the interior of the first connecting block 3 is provided with a limit groove 19 matching the limit ring 7 .

[0025] In this embodiment, the limiting ring 7 slides in the limiting groove 19 to facilitate limiting the first slide bar 6 .

[0026] As a technical optimization solution of the present invention, one end of the second sliding rod 14 away from the first sliding rod 6 extends to the outside of the second connecting block 4 and is fixedly connected to the limiting block 15 .

[0027] In this embodiment, the limiting block 15 is used to limit the second slide bar 14 , thereby limiting the clamping block 13 and preventing the clamping block 13 from escaping from the slide groove 12 .

[0028] As a technical optimization solution of the present invention, a button 17 is fixedly connected to the lower end surface of the first slide bar 6 .

[0029] In this embodiment, the connection button 17 is fixed to the lower end surface of the first slide bar 6 to facilitate pushing and pulling the first slide bar 6 .

[0030] As a technical optimization solution of the present invention, the lower end surface of the first connecting block 3 is fixedly connected with a sleeve 18, the interior of the sleeve 18 is slidably connected with a pin 20, and the outer wall of the first sliding rod 6 is provided with a through hole 21.

[0031] In this embodiment, the first sliding bar 6 is fixed by inserting the latch 20 into the sleeve 18 and the through hole 21 .

[0032] As a technical optimization solution of the present invention, the end of the clamping block 13 close to the first sliding rod 6 is in the form of an inclined surface.

[0033] In this embodiment, by setting the end of the clamping block 13 close to the first sliding rod 6 as an inclined surface, the clamping block 13 is squeezed toward both sides when the fixed block 9 and the sliding block 10 move up and down.

[0034] As a technical optimization solution of the present invention, the longitudinal cross-section of the slide groove 12 along the left-right direction is rectangular.

[0035] In this embodiment, the longitudinal cross section of the slide groove 12 along the left-right direction is set to be rectangular, so as to prevent the block 13 from rotating.

[0036] The working principle and usage process of the utility model are as follows: when removing the cover plate 2, the latch 20 is pulled out from the sleeve 18, and the first slide bar 6 is pushed upward. The first slide bar 6 drives the support ring 8 to move upward, and then drives the sliding block 10 to move upward. When the sliding block 10 moves upward, the card blocks 13 are squeezed to both sides, so that the sliding block 10 moves to the upper side of the card blocks 13. The two card blocks 13 move relative to each other under the elastic force of the spring 16, and the sliding block 10 is lifted. Then the first slide bar 6 is pulled downward, and the first slide bar 6 drives the fixed block 9 to move downward, so that the fixed block 9 and the sliding block 10 are docked together. Continue to pull the first slide bar 6 downward to drive the sliding block 10 and the fixed block 9 to move together. To the bottom of the card block 13, at this time, the card block 13 is disengaged from the fixed block 9, and the cover plate 2 can be removed. When installing the cover plate 2, first insert the pin 20 into the sleeve 18 and the through hole 21, fix the first slide bar 6, and then directly cover the cover plate 2 on the transformer body 1, so that the fixed block 9 is inserted into the second connecting block 4. When the fixed block 9 is inserted into the second connecting block 4, the card block 13 is squeezed to both sides, so that the card block 13 moves to the lower side of the fixed block 9. At this time, the card block 13 is stuck under the fixed block 9 under the elastic force of the spring 16, thereby fixing the cover plate 2 and the transformer body 1. The utility model fixes the cover plate 2 and the transformer body 1 by a card connection, which is convenient for installation and removal of the cover plate 2 and easy maintenance.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dry-type transformer that is easy to maintain, comprising a transformer body (1), a cover plate (2) being provided on the top of the transformer body (1), and characterized in that: The left and right end surfaces of the transformer body (1) are fixedly connected to the first connecting block (3), the left and right end surfaces of the cover plate (2) are fixedly connected to the second connecting block (4), the interior of the first connecting block (3) is fixedly connected to a fixing ring (5), the inner wall of the fixing ring (5) is slidably connected to a first slide bar (6), the upper end surface of the first slide bar (6) is fixedly connected to a fixing block (9), the outer wall of the first slide bar (6) is slidably connected to a sliding block (10) matching the first fixing block (9), the lower end surface of the fixing block (9) is provided with a docking groove (11) matching the sliding block (10), the outer wall of the first slide bar (6) is fixedly connected to a support ring (8), and the support ring (8) is located below the sliding block (10); The second connecting block (4) has two symmetrically distributed sliding grooves (12) inside, and the interiors of the two sliding grooves (12) are slidably connected with a clamping block (13), and the outer walls of the two clamping blocks (13) facing each other are fixedly connected with a second sliding rod (14), and the outer walls of the two second sliding rods (14) are sleeved with a spring (16).

2. The dry-type transformer that is easy to maintain according to claim 1, characterized in that: The outer wall of the first sliding rod (6) is fixedly connected to a limiting ring (7), and a limiting groove (19) matching the limiting ring (7) is provided inside the first connecting block (3).

3. The dry-type transformer that is easy to maintain according to claim 1, characterized in that: One end of the second sliding rod (14) away from the first sliding rod (6) extends to the outside of the second connecting block (4) and is fixedly connected to the limiting block (15).

4. The dry-type transformer easy to maintain according to claim 1, characterized in that: A button (17) is fixedly connected to the lower end surface of the first slide bar (6).

5. The dry-type transformer easy to maintain according to claim 1, characterized in that: The lower end surface of the first connecting block (3) is fixedly connected to a sleeve (18), the interior of the sleeve (18) is slidably connected to a latch (20), and the outer wall of the first sliding rod (6) is provided with a through hole (21).

6. The dry-type transformer that is easy to maintain according to claim 1, characterized in that: One end of the clamping block (13) close to the first slide bar (6) is in the form of an inclined surface.

7. The dry-type transformer easy to maintain according to claim 1, characterized in that: The longitudinal cross section of the slide groove (12) along the left-right direction is rectangular.

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