10kV vacuum circuit breaker contact dust cover
By designing a dustproof cover and clamping fixing structure on the contacts of the vacuum circuit breaker, the problem that the contacts are easily contaminated when they are idle is solved, effectively preventing and fixing the contacts, and improving the reliability and safety of the equipment.
Patent Information
- Application Number
- CN202420742945.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-11
AI Technical Summary
When the contacts of the vacuum circuit breaker are idle, they are easily contaminated by dust and impurities, resulting in poor contact, affecting the normal operation of the equipment, and may even cause fire accidents.
A 10kV vacuum circuit breaker contact dust cover is designed. By setting a protective cover body and a rubber cover on the outside of the contact, combined with a clamping and fixing structure of the threaded rod and the clamping and fixing structure, the dust cover is prevented from falling and effective dust prevention for the contacts.
It effectively prevents dust and impurities from depositing on the contacts, ensures the normal use of the contacts, reduces the risk of fire accidents, and improves the reliability and service life of the equipment.
Smart Images
Figure CN222581032U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum circuit breakers, in particular to a contact dust cover for a 10kV vacuum circuit breaker. Background Art
[0002] A vacuum circuit breaker is a high-voltage electrical appliance with the advantages of small size, light weight, suitable for frequent operation, and arc extinguishing without maintenance. It is widely used in distribution networks. There are many voltage levels for vacuum circuit breakers, and the most common voltage level is 10kV. The inside of the circuit breaker is composed of various components, among which the contacts are an important component of the circuit breaker, which connects and disconnects the current.
[0003] At present, the circuit breaker contacts are directly installed at the end of the contact arm. When the circuit breaker is not used in storage or other situations, since the circuit breaker contacts are directly exposed, when the idle time is long, dust and impurities in the air will be deposited on the contacts, resulting in poor contact between the contacts and the contact seat, which in turn affects the normal operation of the equipment and may even cause safety accidents such as fire. For this reason, we propose a 10kV vacuum circuit breaker contact dust cover to solve the above problems. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a 10kV vacuum circuit breaker contact dust cover.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A 1000 kV vacuum circuit breaker contact dust cover comprises a vacuum circuit breaker body, wherein contact arms are evenly distributed inside the vacuum circuit breaker body, and connecting contacts are installed at the ends of the contact arms, protective cover bodies are symmetrically sleeved on the outer sides of the connecting contacts, and the protective cover bodies are directly connected through connecting plates, and rubber covers are glued to the inner walls of the connecting contacts at positions corresponding to the connecting contacts, and the inner walls of the rubber covers are tightly fitted to the outer surfaces of the contact arms.
[0007] Preferably, the outer sides of the protective cover bodies are respectively connected with connecting blocks, and the inner walls of the connecting blocks are connected with threaded rods through bearings, the outer sides of the threaded rods are symmetrically sleeved with clamping plates, and the inside of the clamping plates are clamped with threaded sleeves that match the threaded rods.
[0008] Preferably, a slot is formed on one side of the clamping plate away from the threaded rod, and a guide rod is inserted into the slot, and the end of the guide rod is fixedly connected to the connecting block.
[0009] Preferably, a rubber plate is glued to a position inside the card plate corresponding to the contact arm, and the outer surface of the rubber plate is evenly provided with anti-slip grooves.
[0010] Preferably, a protective sleeve is glued to a side of the protective cover body away from the connecting contacts, and a longitudinal section of the protective sleeve is arranged to be a U-shaped structure.
[0011] Preferably, the protective sleeve is evenly provided with slots and holes inside, and the inner walls of the slots and holes are connected to a rotating shaft through a bearing, and a rotating roller is sleeved on the outer side of the rotating shaft.
[0012] Preferably, a rotating plate is sleeved at the center of the threaded rod, and anti-skid particles are evenly distributed on the outer surface of the rotating plate.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The device is provided with a protective cover body and a rubber cover. When in use, the protective cover body and the rubber cover cooperate with each other to cover and protect the unused connecting contacts to prevent dust and impurities in the outside air from being deposited on the connecting contacts, thereby effectively ensuring the subsequent normal use of the connecting contacts.
[0015] 2. The device is provided with a clamping plate and a threaded rod. When the protective cover is sleeved on the outside of the connecting contact, the threaded rod and the threaded sleeve cooperate with each other to clamp and fix the position of the protective cover, so as to effectively prevent the protective cover from falling off easily during the protection process, thereby effectively ensuring the dustproof effect of the connecting contact. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional cross-sectional structural diagram of a 10kV vacuum circuit breaker contact dust cover proposed by the utility model;
[0017] Figure 2 for Figure 1 A three-dimensional cross-sectional schematic diagram of the connecting plate and rubber cover structure;
[0018] Figure 3 for Figure 1 A three-dimensional cross-sectional schematic diagram of the protective sleeve and the rotating roller structure;
[0019] Figure 4 for Figure 1 Schematic diagram of the three-dimensional cross-section of the threaded sleeve and guide rod structure.
[0020] In the figure: 1. vacuum circuit breaker body; 2. contact arm; 3. connecting contact; 4. protective cover body; 5. connecting plate; 6. rubber cover; 7. connecting block; 8. threaded rod; 9. rotating plate; 10. clamping plate; 11. threaded sleeve; 12. rubber sheet; 13. guide rod; 14. protective cover; 15. rotating roller; 16. rotating shaft. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] Reference Figure 1-4 A 10kV vacuum circuit breaker contact dust cover comprises a vacuum circuit breaker body 1, wherein contact arms 2 are evenly distributed inside the vacuum circuit breaker body 1, and connecting contacts 3 are installed at the ends of the contact arms 2. The connection methods and working principles of the vacuum circuit breaker body 1, the contact arms 2 and the connecting contacts 3 are all prior arts, and no further description is given here. A protective cover body 4 is symmetrically sleeved on the outer side of the connecting contact 3, and the protective cover body 4 is directly connected through a connecting plate 5. Through the setting of the connecting plate 5, the connection of two groups of protective cover bodies 4 can be realized, so that it is convenient for the staff to simultaneously clamp the two groups of protective cover bodies 4 on the outer sides of the connecting contacts 3 on the upper and lower sides. A rubber cover 6 is glued to the inner wall of the connecting contact 3 at a position corresponding to the connecting contact 3, and the inner wall of the rubber cover 6 is tightly fitted to the outer surface of the contact arm 2, and the inner wall of the opening of the rubber cover 6 is set as an inclined structure, so that it can be smoothly sleeved on the outer side of the connecting contact 3.
[0023] Further, see Figure 3 and Figure 4 It can be known that the outer sides of the protective cover body 4 are respectively connected to the connecting blocks 7, and the inner walls of the connecting blocks 7 are connected to the threaded rods 8 through bearings. The outer sides of the threaded rods 8 are symmetrically sleeved with clamping plates 10, and the interior of the clamping plates 10 is clamped with threaded sleeves 11 that are compatible with the threaded rods 8. When in use, the outer sides of the threaded rods 8 are provided with two groups of external threads with opposite thread directions, through two groups of symmetrically distributed threaded sleeves 11, and the threaded sleeves 11 and the clamping plates 10 are fixedly connected. Therefore, when the threaded rod 8 rotates, it can drive the upper and lower groups of clamping plates 10 to move in opposite directions, thereby facilitating the fixing of the protective cover body 4 to the outer side of the contact arm 2 to prevent the protective cover body 4 from falling off easily.
[0024] Further, see Figure 4 It can be known that a groove is provided on the side of the card plate 10 away from the threaded rod 8, and a guide rod 13 is inserted into the inside of the groove, and the end of the guide rod 13 is fixedly connected to the connecting block 7. When in use, the groove and the guide rod 13 cooperate with each other to ensure the linear movement of the card plate 10, so as to effectively prevent it from idling.
[0025] Further, see Figure 3 and Figure 4It can be known that a rubber plate 12 is glued to the position inside the card plate 10 corresponding to the contact arm 2, and the outer surface of the rubber plate 12 is evenly provided with anti-slip grooves. The position inside the card plate 10 corresponding to the contact arm 2 is set to an arc, and the arc is glued with the rubber plate 12. The setting with the anti-slip grooves can effectively ensure the clamping effect of the card plate 10 on the contact arm 2.
[0026] Further, see Figure 2 and Figure 3 It can be known that a protective sleeve 14 is glued to the side of the protective cover body 4 away from the connecting contact 3, and the longitudinal section of the protective sleeve 14 is set to a U-shaped structure. When in use, the protective sleeve 14 set by the U-shaped structure can realize the surrounding protection of the side of the protective cover body 4, and because the protective sleeve 14 is set to a rubber material, the end of the protective cover body 4 is prevented from being damaged by foreign objects during transfer, thereby effectively ensuring the service life of the protective cover body 4.
[0027] Further, see Figure 2 and Figure 3 It can be known that the inside of the protective sleeve 14 is evenly provided with grooves, and the inner walls of the grooves are connected to the rotating shaft 16 through bearings, and the outer side of the rotating shaft 16 is provided with a rotating roller 15. When in use, through the cooperation between the rotating shaft 16 and the rotating roller 15, when a foreign object contacts the protective sleeve 14, the rotating roller 15 will be driven to rotate under force, so as to convert the sliding friction into rolling friction, thereby achieving the buffering of the impact force, so as to realize the protection of the protective cover body 4 again.
[0028] Further, see Figure 1 and Figure 4 It can be seen that a rotating plate 9 is sleeved at the center position of the threaded rod 8, and anti-slip particles are evenly distributed on the outer surface of the rotating plate 9. When in use, the anti-slip particles and the rotating plate 9 cooperate with each other to facilitate the staff to rotate the threaded rod 8, thereby effectively improving the convenience of using the device.
[0029] Working principle: When the vacuum circuit breaker body 1 is idle during use, the staff can first sleeve the two sets of protective cover bodies 4 on the ends of the contact arms 2, and make the rubber cover 6 connected inside thereof clamped on the outside of the connection contacts 3 to protect the connection contacts 3, and then the staff can rotate the rotating plate 9 to drive the threaded rod 8 to rotate. During the rotation of the threaded rod 8, the threaded sleeves 11 symmetrically distributed on the outside thereof can make the two sets of threaded sleeves 11 move in opposite directions, and will move with the contact arms 2. The outer wall fits tightly, so that the protective cover body 4 can be limited to effectively prevent it from falling off easily during the protection process, thereby effectively improving the dust-proof effect of the connecting contact 3. When the vacuum circuit breaker body 1 is put into use, the staff can rotate the rotating plate 9 in the opposite direction, so that the two sets of clamping plates 10 move away from each other and no longer contact the contact arm 2. At this time, the staff can pull the protective cover body 4 to remove it from the outside of the connecting contact 3 to ensure its normal use. The above is the entire working principle of the utility model.
[0030] In the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated.
[0031] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.
[0032] In the present utility model, unless otherwise stated, the directional words contained in the terms such as "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.
Claims
1. A 10kV vacuum circuit breaker contact dust cover, comprising a vacuum circuit breaker body (1), characterized in that: The interior of the vacuum circuit breaker body (1) is evenly distributed with contact arms (2), and the ends of the contact arms (2) are all equipped with connecting contacts (3), the outer sides of the connecting contacts (3) are symmetrically sleeved with protective covers (4), and the protective covers (4) are directly connected via connecting plates (5), and the inner walls of the connecting contacts (3) are glued with rubber covers (6) at positions corresponding to the connecting contacts (3), and the inner walls of the rubber covers (6) are tightly fitted with the outer surfaces of the contact arms (2).
2. A 10kV vacuum circuit breaker contact dust cover according to claim 1, characterized in that: The outer sides of the protective cover bodies (4) are respectively connected to connecting blocks (7), and the inner walls of the connecting blocks (7) are connected to threaded rods (8) via bearings. The outer sides of the threaded rods (8) are symmetrically sleeved with clamping plates (10), and the interior of the clamping plates (10) is clamped with threaded sleeves (11) that are compatible with the threaded rods (8).
3. A 10kV vacuum circuit breaker contact dust cover according to claim 2, characterized in that: A slot hole is formed on one side of the clamping plate (10) away from the threaded rod (8), and a guide rod (13) is inserted into the slot hole. The end of the guide rod (13) is fixedly connected to the connecting block (7).
4. A 10kV vacuum circuit breaker contact dust cover according to claim 2, characterized in that: A rubber plate (12) is glued to a position inside the card plate (10) corresponding to the contact arm (2), and the outer surface of the rubber plate (12) is evenly provided with anti-slip grooves.
5. The 10kV vacuum circuit breaker contact dust cover according to claim 1, characterized in that: A protective sleeve (14) is glued to the side of the protective cover body (4) away from the connecting contact (3), and the longitudinal section of the protective sleeve (14) is arranged to be a U-shaped structure.
6. A 10kV vacuum circuit breaker contact dust cover according to claim 5, characterized in that: The protective sleeve (14) is evenly provided with slots and holes inside, and the inner walls of the slots and holes are connected to a rotating shaft (16) via a bearing, and a rotating roller (15) is sleeved on the outer side of the rotating shaft (16).
7. A 10kV vacuum circuit breaker contact dust cover according to claim 2, characterized in that: A rotating plate (9) is sleeved at the center of the threaded rod (8), and anti-skid particles are evenly distributed on the outer surface of the rotating plate (9).