Solid-sealed polar pole assembly for voltage transformer

Abstract

The utility model belongs to the technical field of voltage transformers, and discloses a solid-sealed polar pole assembly for a voltage transformer. The solid-sealed polar pole assembly for the voltage transformer comprises a solid-sealed polar pole body, a bayonet socket is fixedly installed on the solid-sealed polar pole body, a protective tube is fixedly connected to the position, located on the outer side of the bayonet socket, of the solid-sealed polar pole body, arc-shaped grooves are formed in the left side and the right side of the inner wall of the protective tube correspondingly, and arc-shaped rods are inserted into the arc-shaped grooves; a strip-shaped groove is further formed in the protection pipe and communicates with the arc-shaped groove, an ejector rod is inserted into the strip-shaped groove, and a steel ball is further arranged in the arc-shaped groove. According to the solid-sealed polar pole assembly for the voltage transformer, connection plugs on a high-voltage system can be sealed, dust, water drops or other impurities are prevented from influencing the voltage transformer through gaps, it is ensured that the solid-sealed polar pole assembly is stable in use, the structure is simple, operation is convenient and fast, sealing can be completed only by inserting the connection plugs into the connection sockets, and use is convenient. Other tedious steps are not needed, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage transformers, in particular to a sealed pole assembly for voltage transformers. Background Art

[0002] A voltage transformer is an electrical device used to measure the voltage in a high-voltage system and reduce it to a safe range for monitoring and control. Voltage transformers are usually used to convert high-voltage signals in high-voltage systems (such as power systems) into low-voltage signals so that they can be connected to instruments, protection devices, metering equipment, etc. for monitoring, measurement and control.

[0003] The voltage transformer is provided with a socket connected to the high-voltage system. The connection can be completed by directly plugging the plug connector on the high-voltage system into the socket. Although the voltage transformers on the market are currently equipped with protective tubes for protecting the sockets, there is still a certain gap between the protective tube and the plug connector. During long-term use, dust or water droplets will inevitably fall through the gap, thereby affecting the normal use of the voltage transformer. Therefore, we designed a sealed pole assembly for voltage transformers. Utility Model Content

[0004] The utility model aims to provide a sealed pole assembly for a voltage transformer, which can seal the gap between the plug connector and the socket, is easy to operate, and solves the problems raised in the background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a sealed pole assembly for a voltage transformer includes a sealed pole body, a plug socket is fixedly installed on the sealed pole body, a protective tube is fixedly connected to the sealed pole body and located outside the plug socket, arc grooves are provided on both sides of the inner wall of the protective tube, an arc rod is inserted in the arc groove, a strip groove is also provided in the protective tube and is connected to the arc groove, a top rod is inserted in the strip groove, and a steel ball is also provided in the arc groove;

[0006] The left and right inner walls of the protective tube are provided with through holes connected to the top of the strip groove, and a conical rod is inserted into the through hole. The left and right inner walls of the protective tube and the positions corresponding to the through holes are provided with placement grooves connected to the through holes, and a limiting clamp is arranged in the placement groove, and the limiting clamp is fixedly connected to the conical rod.

[0007] Through the above technical scheme, the present application can seal the gap between the plug connector and the socket after plugging, thereby preventing the voltage transformer from being affected by external factors during use. At the same time, the sealing can be automatically completed during the plug-in process of the plug connector, without the need for other operating steps and equipment coordination, which is extremely convenient.

[0008] Preferably, the shape of the limiting clamp is adapted to the placement slot, and the limiting clamp extends outside the placement slot, one end of the tapered rod contacts the top end of the push rod, and the other end is connected to one side of the limiting clamp located in the placement slot.

[0009] Through the above technical solution, the limiting clamp of the present application moves upward to squeeze the conical rod and drive the limiting clamp to move for clamping and sealing. At the same time, the shape design of the contact end of the conical rod and the limiting clamp can make the conical rod move more smoothly.

[0010] Preferably, an auxiliary groove is provided on the inner wall of the perforation, an annular pad is fixedly connected to the outer side of the conical rod, and the annular pad is slidably connected in the auxiliary groove, and a compression spring is also sleeved on the outer side of the conical rod, and both ends of the compression spring are respectively fixedly connected to the annular pad and the inner wall of the auxiliary groove.

[0011] Through the above technical solution, when the plug connector is pulled out, the conical rod follows the movement of the push rod and is reset by the elastic force of the compression spring, while driving the limit clamp to reset to facilitate subsequent plug-in connection.

[0012] Preferably, the shape of the arc groove is matched with the shape of the arc rod, and the top end of the arc rod is movably connected with a movable ball.

[0013] Through the above technical solution, the contact between the movable ball and the plug connector can make the arc rod move more smoothly.

[0014] Preferably, a sliding groove is provided on the inner wall of the arc-shaped groove, a limiting ring is fixedly connected to the outer side of the bottom end of the arc-shaped rod, and the limiting ring is slidably connected in the sliding groove.

[0015] Through the above technical solution, the present application can limit the arc rod to prevent the arc rod from falling off.

[0016] Preferably, there are several steel balls in the arc-shaped groove, and the steel balls located on the two most sides are in contact with the connecting rod and the arc-shaped rod respectively.

[0017] Through the above technical solution, the arc rod of the present application is squeezed to push the steel ball to move, and the steel ball squeezes the top rod to move. The designed steel ball can adapt to the shape of the arc groove to move.

[0018] Preferably, the shape formed by the two limit clamps is compatible with the shape of the socket, and the limit clamps are made of hard rubber.

[0019] By adopting the above technical solution, the beneficial effects of the utility model are:

[0020] 1. The sealed pole assembly for the voltage transformer can seal the plug connectors on the high-voltage system to prevent dust, water droplets or other impurities from passing through the gap to affect the voltage transformer, ensuring its stable use, simple structure, and convenient operation. The sealing can be completed by simply inserting the plug connector into the socket without other cumbersome steps, and it is highly practical.

[0021] 2. The sealed pole assembly used in the voltage transformer cooperates with the auxiliary groove, the annular gasket and the compression spring. When the plug connector is pulled out, the elastic force generated by the compression spring resets the conical rod, that is, the limit clamp resets, which will not affect the subsequent connection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the front view of the utility model;

[0023] Figure 2 This is a bottom sectional view of the protection tube of the utility model;

[0024] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle.

[0026] In the figure: 1. Sealed pole body; 2. Plug-in socket; 3. Protective tube; 4. Arc groove; 5. Arc rod; 6. Strip groove; 7. Push rod; 8. Steel ball; 9. Perforation; 10. Conical rod; 11. Placement groove; 12. Limiting clamp; 13. Auxiliary groove; 14. Ring pad; 15. Compression spring; 16. Sliding groove; 17. Limiting ring; 18. Moving ball. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4The utility model provides a technical solution: a sealed pole assembly for a voltage transformer, comprising a sealed pole body 1, a plug socket 2 is fixedly mounted on the sealed pole body 1, a protective tube 3 is fixedly connected to the sealed pole body 1 and located outside the plug socket 2, arc grooves 4 are provided on both sides of the inner wall of the protective tube 3, an arc rod 5 is inserted in the arc groove 4, a strip groove 6 is also provided in the protective tube 3 and is connected to the arc groove 4, a top rod 7 is inserted in the strip groove 6, and a steel ball 8 is also provided in the arc groove 4;

[0029] The left and right inner walls of the protective tube 3 are provided with through holes 9 and are connected to the top of the strip groove 6. A conical rod 10 is inserted into the through hole 9. The left and right inner walls of the protective tube 3 and the positions corresponding to the through holes 9 are provided with placement grooves 11 and are connected to the through holes 9. A limiting clamp 12 is arranged in the placement groove 11, and the limiting clamp 12 is fixedly connected to the conical rod 10.

[0030] Through the above technical scheme, the present application can seal the gap between the plug connector and the socket 2 after insertion to prevent the voltage transformer from being affected by external factors during use. At the same time, the sealing can be automatically completed during the plug connector insertion process, without the need for other operating steps and equipment coordination, which is extremely convenient.

[0031] The shape of the limiting clamp 12 is adapted to the placement groove 11, and the limiting clamp 12 extends outside the placement groove 11. One end of the tapered rod 10 contacts the top end of the push rod 7, and the other end is connected to one side of the limiting clamp 12 located in the placement groove 11.

[0032] Through the above technical solution, the limiting clamp 12 of the present application moves upward to squeeze the conical rod 10 and drive the limiting clamp 12 to move for clamping and sealing. At the same time, the shape design of the contact end of the conical rod 10 and the limiting clamp 12 can make the conical rod 10 move more smoothly.

[0033] An auxiliary groove 13 is formed on the inner wall of the through hole 9, an annular pad 14 is fixedly connected to the outer side of the conical rod 10, and the annular pad 14 is slidably connected in the auxiliary groove 13, and a compression spring 15 is also sleeved on the outer side of the conical rod 10, and the two ends of the compression spring 15 are fixedly connected to the annular pad 14 and the inner wall of the auxiliary groove 13 respectively.

[0034] Through the above technical solution, when the plug connector is pulled out, the conical rod 10 follows the movement of the push rod 7 and is reset by the elastic force of the compression spring 15, while driving the limiting clamp 12 to reset to facilitate subsequent plug connection.

[0035] The shape of the arc groove 4 matches the shape of the arc rod 5 , and a moving ball 18 is movably connected to the top of the arc rod 5 .

[0036] Through the above technical solution, the movable ball 18 of the present application contacts with the plug connector, which can make the arc rod 5 move more smoothly.

[0037] A sliding groove 16 is formed on the inner wall of the arc groove 4 , and a limiting ring 17 is fixedly connected to the outer side of the bottom end of the arc rod 5 , and the limiting ring 17 is slidably connected in the sliding groove 16 .

[0038] Through the above technical solution, the present application can limit the arc rod 5 to prevent the arc rod 5 from falling off.

[0039] There are a plurality of steel balls 8 in the arc groove 4 , and the steel balls 8 located at the two most sides are in contact with the connecting rod and the arc rod 5 respectively.

[0040] Through the above technical solution, the arc rod 5 of the present application is squeezed to push the steel ball 8 to move, and the steel ball 8 squeezes the top rod 7 to move. The designed steel ball 8 can adapt to the shape of the arc groove 4 to move.

[0041] The shape formed by the two limiting clamps 12 is adapted to the shape of the socket 2 , and the limiting clamps 12 are made of hard rubber.

[0042] When the sealed pole assembly for the voltage transformer is working, the plug connector on the high-voltage system is inserted into the socket 2 for connection. During the movement of the plug connector, the arc rod 5 will be squeezed, and the arc rod 5 will be inserted into the arc groove 4 and push the steel ball 8 to move. The movement of the steel ball 8 will push the push rod 7 to move and squeeze the conical rod 10. The relative movement of the two conical rods 10 drives the two limit clamps 12 to move relatively and contact the plug connector. When the plug connector is fully inserted into the socket 2, the two limit clamps 12 are close to the plug connector to play a protective role, which can effectively prevent the influence of external factors. When the plug connector is pulled out, the arc rod 5 gradually resets as the plug connector is pulled out, that is, the conical rod 10 is pushed to reset the push rod 7 by the elastic force of the compression spring 15. At this time, the two limit clamps 12 gradually separate from the plug connector to complete the reset, and will not affect the next plug-in action.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed pole assembly for a voltage transformer, comprising a sealed pole body, a socket fixedly mounted on the sealed pole body, a protective tube fixedly connected to the sealed pole body and located outside the socket, characterized in that: The left and right sides of the inner wall of the protection tube are provided with arc grooves, and an arc rod is inserted in the arc groove. The protection tube is also provided with a strip groove connected to the arc groove, and a top rod is inserted in the strip groove. A steel ball is also arranged in the arc groove. The left and right inner walls of the protective tube are provided with through holes connected to the top of the strip groove, and a conical rod is inserted into the through hole. The left and right inner walls of the protective tube and the positions corresponding to the through holes are provided with placement grooves connected to the through holes, and a limiting clamp is arranged in the placement groove, and the limiting clamp is fixedly connected to the conical rod.

2. The sealed pole assembly for a voltage transformer according to claim 1, characterized in that: The shape of the limiting clamp is adapted to the placement slot, and the limiting clamp extends outside the placement slot. One end of the tapered rod contacts the top end of the push rod, and the other end is connected to one side of the limiting clamp located in the placement slot.

3. The sealed pole assembly for a voltage transformer according to claim 2, characterized in that: An auxiliary groove is provided on the inner wall of the perforation, an annular pad is fixedly connected to the outer side of the conical rod, and the annular pad is slidably connected in the auxiliary groove, and a compression spring is also sleeved on the outer side of the conical rod, and the two ends of the compression spring are respectively fixedly connected to the annular pad and the inner wall of the auxiliary groove.

4. The sealed pole assembly for a voltage transformer according to claim 3, characterized in that: The shape of the arc groove is matched with the shape of the arc rod, and the top end of the arc rod is movably connected with a moving ball.

5. The sealed pole assembly for a voltage transformer according to claim 4, characterized in that: The inner wall of the arc groove is provided with a sliding groove, the outer side of the bottom end of the arc rod is fixedly connected with a limiting ring, and the limiting ring is slidably connected in the sliding groove.

6. The sealed pole assembly for a voltage transformer according to claim 5, characterized in that: There are several steel balls in the arc groove, and the steel balls located at the two most sides are in contact with the connecting rod and the arc rod respectively.

7. The sealed pole assembly for a voltage transformer according to claim 6, characterized in that: The shape formed by the two limit clamps is compatible with the shape of the socket, and the limit clamps are made of hard rubber.

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