Tubular busbar support fitting

Abstract

The utility model relates to a tubular bus bar support fitting, which comprises a terminal connecting plate and a tubular bus bar holding clamp, the terminal connecting plate and the tubular bus bar holding clamp are connected through a flexible conductor, the terminal connecting plate is provided with a guide piece extending up and down, the guide piece is provided with a sliding piece in a guiding manner, the tubular bus bar holding clamp is connected with a support plate, and the support plate is connected with the sliding piece. According to the brand-new tubular bus support fitting provided by the utility model, as the guide piece extends up and down, the distance of the support plate floating up and down along the guide piece is not limited by other parts, the support plate can be randomly adjusted in the longitudinal direction, and when the support plate is adjusted to a proper position, the terminal connecting plate fixed with the guide piece is connected with the equipment terminal, so that the support plate is convenient to use. The tubular bus holding clamp is connected with the tubular bus to form an electrical through-flow structure, so that the tubular bus support fitting to be protected has the characteristic of wide compensation height difference range, and can well solve the working condition problem that the tubular bus and an equipment terminal are not in the same plane.

Description

Technical Field

[0001] The utility model relates to the technical field of overhead installation of wires or cables, and particularly relates to a busbar support fitting. Background Art

[0002] A converter station refers to a station established in a high-voltage DC power transmission system to complete the conversion of alternating current to direct current or direct current to alternating current and keep the power system safe and stable. With the increasing domestic power demand, the capacity and current-carrying capacity of conventional converter stations can gradually no longer meet the actual needs, and ultra-high voltage converter stations need to be adopted. Various fittings are often used for the connection between the busbar and equipment terminals in ultra-high voltage converter stations, and there are usually many problems in the installation of the fittings.

[0003] For example, at certain specific positions, due to design requirements, when the center of the busbar cannot be designed on the same plane as the center of the equipment terminal, it will cause the fittings to be unable to be installed normally. In the prior art, this problem is usually solved by changing the installation height of the support plate on the busbar side or the equipment terminal side. However, this method is rather cumbersome and inconvenient, and increases the design and production costs of the fitting suppliers.

[0004] In view of the above problems, the Chinese utility model patent with the application authorization number CN205453037U discloses a cross-road fitting. Specifically, the I-shaped support plate includes an upper plate and a lower plate. Fixing plates are provided on both sides of the upper plate and the lower plate. Connecting holes are respectively arranged at both ends of the upper plate and the lower plate. A limiting plate is provided on the busbar clamp. A connecting plate extending horizontally is provided on the limiting plate. A waist-shaped hole is arranged on the connecting plate. The connecting plate is located between the upper plate and the lower plate. Bolts are arranged in the waist-shaped hole and the connecting hole. The depth of the waist-shaped hole, that is, the thickness of the connecting plate, is less than the distance between the upper plate and the lower plate. When this structure is used, the position of the connecting plate between the upper and lower plates is adjusted to adapt to the position of the busbar. That is, using the I-shaped support plate to adjust the height difference is limited by the height difference between the upper plate and the lower plate. When the height difference between the busbar center and the equipment terminal center is very large, the above-disclosed structure cannot solve the problem of height difference compensation. In addition, it is very difficult to ensure that the busbar is in an absolutely horizontal state during the actual assembly and construction process. Once there is an angle between the busbar and the I-shaped support plate in the horizontal direction, then the connecting plate between the upper and lower plates of the I-shaped support plate will tilt and extend into the space between the two plates, and the floating gap between the upper and lower plates and the connecting plate will be further reduced. That is to say, the range of adapting to the height difference of this method of compensating the height difference in the prior art is relatively limited. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a busbar support fitting to solve the technical problem that the range of adapting to the height difference is relatively limited when using the I-shaped support plate to adjust the situation where the busbar and the equipment terminal are not on the same plane in the prior art.

[0006] To achieve the above object, the technical solution of the pipe busbar support fitting provided by the present utility model is as follows: It includes a terminal connection plate and a pipe busbar clamp. The terminal connection plate and the pipe busbar clamp are connected by a flexible conductor. A guiding member extending vertically is provided on the terminal connection plate, and a sliding member is guidingly installed on the guiding member. A support plate is connected to the pipe busbar clamp, and the support plate is connected to the sliding member.

[0007] Beneficial effects: Compared with the prior art, the present utility model provides a brand-new pipe busbar support fitting. When this fitting is in use, it can be first fixedly connected to the pipe busbar through the pipe busbar clamp. Since there is a height difference between the pipe busbar and the equipment terminal, when the pipe busbar side is fixed, the sliding block guidingly installed on the guiding member can move up and down along the vertically extending guiding member. Since the guiding member extends vertically, the floating distance of the support plate along the guiding member is not restricted by other components and can be adjusted arbitrarily in the longitudinal direction. After adjusting to the appropriate position, the terminal connection plate fixed with the guiding member is connected to the equipment terminal. At this time, the current flows through the pipe busbar, the flexible conductor, and reaches the equipment terminal in sequence to form an electrical current path. Therefore, the pipe busbar support fitting protected by the present utility model has the characteristic of a wide range of height difference compensation and can well solve the working condition problem that the pipe busbar and the equipment terminal are not in the same plane.

[0008] By providing a vertically extending guiding member on the terminal connection plate and guidingly installing a sliding member on the guiding member, not only can the working condition requirements that the center line of the pipe busbar and the center of the equipment terminal are not in the same plane be achieved, but also the range of height difference compensation of this "vertically extending guiding member" is wider.

[0009] Further, the support plate is hinged to the sliding member along a horizontal axis perpendicular to the pipe busbar.

[0010] Further, the hinge holes on the support plate and / or the sliding member are long holes extending along the length direction of the pipe busbar.

[0011] Further, the support plate includes an end plate connected to the end of the pipe busbar clamp and a hinge connection plate provided on the end plate. The hinge connection plate extends along the length direction of the pipe busbar, and the long hole is provided on the hinge connection plate.

[0012] Further, the hinge connection plates are arranged in pairs and are respectively on both sides of the sliding member.

[0013] Further, the guiding member includes a group of vertical rods, and the sliding member is guidingly engaged with all the vertical rods in the group in the up and down direction.

[0014] Further, the guiding member includes two vertical rods, the sliding member is slidably sleeved on the two vertical rods at the same time, and the support plate is hinged at a position between the two vertical rods of the sliding member through a pin shaft.

[0015] Further, a locking structure is arranged on the guiding member to lock the sliding member on the guiding member after the pipe bus clamp is connected to the pipe bus and the terminal connection plate is connected to the equipment terminal.

[0016] Further, the guiding member includes a screw rod, the sliding member is sleeved on the screw rod, and the locking structure is locking nuts arranged on the screw rod on the upper and lower sides of the sliding member.

[0017] Further, the soft conductor is arranged in a cage shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view of a pipe bus support fitting of the present utility model;

[0019] Figure 2 is the left view of the pipe bus support fitting of the present utility model;

[0020] Figure 3 is the top view of the pipe bus support fitting of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the electrical current conduction in the pipe bus support fitting of the present utility model;

[0022] Figure 5 is the front view of the mechanical support device in the pipe bus support fitting of the present utility model;

[0023] Figure 6 is the top view of the mechanical support device in the pipe bus support fitting of the present utility model;

[0024] Figure 7 is the front view of the sliding member in the pipe bus support fitting of the present utility model;

[0025] Figure 8 is the top view of the sliding member in the pipe bus support fitting of the present utility model;

[0026] Figure 9 is the front view of the support plate in the pipe bus support fitting of the present utility model;

[0027] Figure 10 is the top view of the support plate in the pipe bus support fitting of the present utility model.

[0028] In the figures: 1, pipe bus clamp; 2, support plate; 21, end plate; 22, hinge connection plate; 23, long hole; 3, terminal connection board; 4, soft conductor; 5, guiding member; 6, sliding member; 61, pin hole; 62, guiding hole; 63, pin; 7, locking nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The features and performance of the present utility model will be further described in detail below in conjunction with the embodiments.

[0030] The pipe busbar support fitting of the present utility model is mainly designed for the problem that when the center of the pipe busbar and the center of the equipment terminal cannot be designed on the same plane due to design requirements at certain specific positions, the fitting cannot be installed normally. In the prior art, this problem is usually solved by changing the installation height of the support plate on the pipe busbar side or the equipment terminal side. However, this method is rather cumbersome and inconvenient, and increases the design and production costs of the fitting supplier. Thus, as the document cited in the background art, when this structure is in use, the position of the connecting plate between the upper and lower plates is adjusted to adapt to the position of the pipe busbar, that is, using an "I"-shaped support plate to adjust the height difference is limited by the height difference between the upper and lower plates. When the height difference between the pipe busbar center and the equipment terminal center is very large, the above-disclosed structure cannot solve the problem of height difference compensation. In addition, it is very difficult to ensure that the pipe busbar is in an absolutely horizontal state during the actual assembly and construction process. Once there is an angle between the pipe busbar and the "I"-shaped support plate in the horizontal direction, the connecting plate between the upper and lower plates of the "I"-shaped support plate will tilt and extend into the two plates, and the floating gap between the upper and lower plates and the connecting plate will be further reduced. That is to say, the range of adapting to the height difference of this method of compensating the height difference in the prior art is relatively limited. Especially after installation and use, when the pipe busbar or equipment tilts due to foundation settlement, the fitting will also be damaged.

[0031] Therefore, the present application provides a new technical solution to solve the technical problem that the range of adapting to the height difference is relatively limited when using an "I"-shaped support plate to adjust the height difference when the pipe busbar and the equipment terminal are not on the same plane in the prior art. Specifically, the pipe busbar support fitting of the present utility model, as Figures 1-3 shown, the pipe busbar support fitting as a whole is similar to the fitting in the prior art. For example, the pipe busbar clamp 1 is also used to hold the pipe busbar tightly, the terminal connecting plate 3 is also connected to the equipment terminal by bolts, and the pipe busbar clamp 1 and the terminal connection board 3 are connected by a flexible conductor 4. The overall electrical current conduction passes through the pipe busbar, the pipe busbar clamp, the flexible conductor to the equipment terminal in sequence.

[0032] The difference between the busbar support fitting of the present utility model and the prior art lies in that a guiding member 5 extending vertically is provided on the terminal connecting plate 3, a sliding member 6 is guidingly installed on the guiding member 5, a support plate 2 is connected to the busbar clamp 1, and the support plate 2 is connected to the sliding member 6. Compared with the prior art, the present utility model provides a brand-new busbar support fitting. When this fitting is in use, it can be first fixedly connected to the busbar through the busbar clamp. Since there is a height difference between the busbar and the equipment terminal, when the busbar side is fixed, the sliding block guidingly installed on the guiding member can move up and down along the vertically extending guiding member. Since the guiding member extends vertically, the distance that the support plate floats up and down along the guiding member is not restricted by other components and can be adjusted arbitrarily in the longitudinal direction. After adjusting to the appropriate position, the terminal connecting plate fixed with the guiding member is connected to the equipment terminal. At this time, the current passes through the busbar, flexible conductor to the equipment terminal in sequence to form an electrical current path. Therefore, the busbar support fitting to be protected by the present utility model has the characteristic of a wide range of height difference compensation.

[0033] Based on the above main concept, different embodiments are provided below for illustration.

[0034] In one embodiment, the support plate 2 and the sliding member 6 are of a split structure and fixedly connected, or the support plate 2 and the sliding member 6 are integrally provided. The sliding member 6 drives the busbar clamp 1 to slide up and down along the guiding member together through the support plate 2. When sliding to the appropriate position, it is connected to the busbar through the busbar clamp 1, which can also solve the height compensation problem. However, when an earthquake or other environmental factors cause the foundation to sink and the busbar to tilt during the use of the above embodiments, it is easy to cause damage to the fitting. Therefore, the present application provides a more optimal embodiment, as Figure 5 and Figure 6 shown. Specifically, the support plate 2 is hinged to the sliding member 6 along a horizontal axis perpendicular to the busbar. This hinged structure can, to a certain extent, protect the fitting from being damaged.

[0035] However, by hinging the support plate 2 and the sliding member 6, the degree of protecting the fitting from being damaged is limited. When the earthquake or environmental factors are more severe, the overall fitting will be subjected to greater external forces, and the length of the busbar cannot be determined due to the influence of thermal expansion and contraction factors during the installation and use of the fitting, so it will be restricted in the left and right directions. Therefore, in order to improve the adaptability in the left and right directions, the present application provides a more optimal embodiment, as Figure 7 and Figure 9As shown, the hinge holes on the support plate 2 and / or the sliding member 6 are oblong holes 23 extending along the length direction of the pipe busbar; designing the hinge holes as oblong holes 23 extending along the length direction of the pipe busbar is beneficial for more flexible adjustment of the distance among the pipe busbar, the fittings, and the equipment terminal during installation and use, making the installation more convenient. That is to say, when the pipe busbar is long, the distance between the pipe busbar clamp 1 and the terminal connection board 3 can be adjusted in the opposite direction of the pipe busbar, and when the pipe busbar is short, the distance between the pipe busbar clamp 1 and the terminal connection board 3 can be adjusted in the direction of the pipe busbar to adapt to the distance between the pipe busbar and the equipment terminal.

[0036] In one embodiment, the oblong hole 23 can be arranged on the sliding member 6, and the hinge pin 63 passes through the support plate 2 and slides left and right in the oblong hole 23 of the sliding member 6, so that the compensation for the sliding amount in the left and right directions can be achieved. However, in this way of arranging the oblong hole 23 on the sliding member 6, since the length of the sliding member 6 is less than the length of the hinge connection plate 22 of the support plate 2, its adjustment range will be smaller than that when the oblong hole 23 is arranged on the hinge connection plate 22 of the support plate 2. Therefore, the present application provides a more optimal embodiment, as Figure 9 As shown, the support plate 2 includes an end plate 21 connected to the end of the pipe busbar clamp 1 and a hinge connection plate 22 arranged on the end plate 21. The hinge connection plate 22 extends along the length direction of the pipe busbar, and the oblong hole 23 is arranged on the hinge connection plate 22. This arrangement is more beneficial for adjusting the sliding amount in the horizontal direction, making the use range wider.

[0037] In one embodiment, there is only one hinge connection plate 22, and the oblong hole 23 is arranged on the hinge connection plate 22. The hinge pin 63 passes through the sliding member 6 and slides in the oblong hole 23 of the hinge connection plate 22, and the adjustment of the sliding amount in the horizontal direction can also be achieved. However, since there is only one hinge connection plate 22, the sliding of the sliding member 6 in the oblong hole 23 is unstable and prone to rotational swing. Therefore, the present application provides a more optimal embodiment, as Figures 5-10 As shown, the hinge connection plates 22 are arranged in pairs and are respectively on both sides of the sliding member 6. By arranging the hinge connection plates 22 in pairs, the mechanical support effect of the fitting can be better, ensuring the stability of the fitting during use.

[0038] In order to achieve the compensation of the height difference, a guide member 5 extending vertically is arranged on the terminal connection plate 3. The guide member 5 includes a vertical rod. If only one vertical rod is arranged, the sliding member 6 can also be adjusted along the vertical direction on the vertical rod. However, since there is only one vertical rod, the sliding member 6 can rotate randomly on the vertical rod. Therefore, the present application provides a more optimal embodiment, as Figure 5As shown, the guiding member 5 includes a set of vertical rods, and the sliding member 6 is simultaneously guided and fitted with all the vertical rods in the set in the up-and-down direction. Through the above-optimized structure, the sliding member can have better stability during use and is not prone to deflection. The number of vertical rods included in the set of vertical rods can be 2, 3, or more.

[0039] In one embodiment, the number of vertical rods included in the set of vertical rods is 2, and the two vertical rods are spaced apart in the length direction of the pipe busbar. The support plate 2 and the sliding member 6 are hinged at a certain end outside the two vertical rods of the sliding member 6. The sliding member is simultaneously sleeved on the two vertical rods, and in this way, the overall support function of the fitting can also be achieved. However, since it is hinged at a certain end of the sliding member 6, the reliability of the fitting during use is not strong. For this reason, the present application provides a more optimal embodiment. The guiding member 5 includes two vertical rods, and the sliding member 6 is simultaneously slidably sleeved on the two vertical rods. The support plate 2 is hinged at a position between the two vertical rods of the sliding member 6 through a pin shaft 63. Hinging the pin shaft 63 at a position between the two vertical rods of the sliding member 6, close to the center position of the sliding block 6 or just at the center position of the sliding block 6, enables the overall support effect to reach the best and is more reliable and safe during use.

[0040] Since the pipe busbar support fitting to be protected by the present application is generally used outdoors and is in an unattended working condition after installation. Therefore, when designing the technical solution of the present application, considering the stability and reliability of the overall structure of the fitting, the applicant provides a more optimal embodiment, as Figure 6 shown, a locking structure is configured on the guiding member 5 to lock the sliding member 6 on the guiding member after the pipe busbar clamp 1 is connected to the pipe busbar and the terminal connection plate 3 is connected to the equipment terminal. When the height error of the on-site equipment foundation is too large or there is a height difference requirement in the actual project, the position of the sliding member 6 on the guiding member 5 can be adjusted, so that the sliding member 6 moves up and down along the paired vertical rods. When it moves to a suitable position, the sliding member 6 is locked at the relative position of the paired vertical rods through the locking structure, making the overall structure of the fitting more stable and reliable.

[0041] The above-mentioned paired vertical rods solve the corresponding locking problem, but the friction coefficient of the vertical rods is small, and the locking structure provided on the vertical rods is not firm. For this reason, the present application provides a more optimal embodiment. The guiding member 5 includes a screw rod, the sliding member 6 is sleeved on the screw rod, and the locking structure is locking nuts 7 provided on the screw rod on the upper and lower sides of the sliding member 6. Further defining the locking structure as the locking nuts 7 and the guiding member as the screw rod makes the fitting of the present application safer and more reliable during use. In other embodiments, the guiding member 5 is not a screw rod. For example, the guiding member 5 is a vertical plate, the sliding member 6 is sleeved on the vertical plate, and the locking structure is a set screw that rotates on the sliding member and can be tightened against the surface of the vertical plate.

[0042] Finally, the technical solution to be protected by this application is a pipe busbar support fitting, and its main working principle is as follows Figure 4 shown: The pipe busbar is clamped by the pipe busbar clamp 1, and the terminal connection plate 3 is connected to the equipment terminal. The current flows from the pipe busbar through the flexible conductor 4 to the equipment terminal, realizing the electrical current flow between the pipe busbar and the equipment terminal. The flexible conductor 4 can be an aluminum stranded wire. Corona phenomena are likely to occur during operation. For this reason, this application provides a more optimal embodiment in which multiple flexible conductors 4 are arranged in a cage shape. Such an arrangement is beneficial to form a uniform electric field and form a good shield on the fitting body, having a good anti-corona effect.

[0043] Compared with the prior art that changes the installation height of the support plate on the pipe busbar side or the equipment terminal side, in the pipe busbar support fitting provided by the present invention, the sliding member 6 moves up and down along the screw. When the height error of the on-site equipment foundation is too large or there is a height difference requirement in the actual project, the corresponding position of the sliding member 6 on the screw can be adjusted. After moving to the appropriate position, the relative position of the sliding member 6 on the screw is fixed to play the role of height adjustment. In addition, a long hole 23 along the pipe busbar direction is provided on the hinge connection plate 22 of the support plate 2 to realize the sliding amount of the fitting in the horizontal direction.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. Any equivalent structural changes made by using the description and drawings of the present invention should be equally included in the protection scope of the present invention.

Claims

1. A pipe busbar support fitting, characterized in that, It includes a terminal connection plate and a busbar clamp. The terminal connection plate and the busbar clamp are connected by a flexible conductor. A guiding member extending vertically up and down is provided on the terminal connection plate, and a sliding member is guidingly installed on the guiding member. A support plate is connected to the busbar clamp, and the support plate is connected to the sliding member.

2. The pipe busbar support fitting according to claim 1, characterized in that, The support plate is hinged to the sliding member along a horizontal axis perpendicular to the busbar.

3. The busbar support fitting according to claim 2, characterized in that, The hinge holes on the support plate and / or the sliding member are elongated holes extending along the length direction of the busbar.

4. The pipe busbar support fitting according to claim 3, characterized in that, The support plate includes an end plate connected to the end of the busbar clamp and a hinge connection plate provided on the end plate. The hinge connection plate extends along the length direction of the busbar, and the elongated hole is provided on the hinge connection plate.

5. The pipe busbar support fitting according to claim 4, characterized in that, The hinge connection plates are arranged in pairs and are respectively on both sides of the sliding member.

6. The pipe busbar support fitting according to any one of claims 1-5, characterized in that, The guiding member includes a group of vertical rods, and the sliding member is guidingly matched with all the vertical rods in the group in the up and down direction.

7. The busbar support fitting according to claim 6, characterized in that, The guiding member includes two vertical rods. The sliding member is slidably sleeved on the two vertical rods, and the support plate is hinged at a position between the two vertical rods of the sliding member through a pin shaft.

8. The pipe busbar support fitting according to any one of claims 1-5, characterized in that, A locking structure is configured on the guiding member to lock the sliding member on the guiding member after the busbar clamp is connected to the busbar and the terminal connection plate is connected to the equipment terminal.

9. The pipe busbar support fitting according to claim 8, characterized in that, The guiding member includes a screw rod, and the sliding member is sleeved on the screw rod. The locking structure is locking nuts provided on the screw rod on the upper and lower sides of the sliding member.

10. The pipe busbar support fitting according to any one of claims 1-5, characterized in that, The flexible conductor is arranged in a cage shape.

Images