Elbow bus duct with variable rotation angle

Abstract

The utility model relates to a bus duct, in particular to a corner-variable elbow bus duct, which comprises a first wire duct and a second wire duct. A first turntable is mounted at one end of the first wire slot; a second turntable rotationally connected with the first turntable is mounted at one end of the second wire slot; a fixing rod rotationally connected with the second rotating disc is mounted on the first rotating disc; the first wire groove and the second wire groove are both provided with wire guide plates. The two groups of lead plates abut against each other; the wire guide plate on the second wire slot is rotationally connected with the fixed rod; a locking structure is arranged between the first wire duct and the second wire duct and can limit rotation of the first wire duct and the second wire duct. An unlocking structure is arranged on the second wire slot, and the unlocking structure can relieve the limiting state of the locking structure and the abutting state between the wire guide plates, so that the second wire slot and the first wire slot can rotate relative to each other; and no friction loss exists between the wire plates in the rotating process, so that the conductive stability of the bus duct is improved, and the hidden danger of electricity utilization is eliminated.

Description

Technical Field

[0001] This utility model relates to a busbar trough, specifically a bend busbar trough with variable angle. Background Technology

[0002] The main function of corner busbar trunking is to connect busbar trunking in different directions, ensuring the continuity and stability of power transmission. In power systems, corner busbar trunking, through its special structural design, can provide a good electrical connection at the bend of the busbar trunking, ensuring smooth current transmission, reducing power loss, and improving the overall efficiency of the system.

[0003] Common angle busbar trunking includes fixed-angle busbar trunking and variable-angle busbar trunking. Fixed-angle busbar trunking is mostly prefabricated and suitable for fixed locations (e.g., right-angle busbar trunking is suitable for 90° angles). Variable-angle busbar trunking, due to its adjustable angle, can be used in more complex installation environments. A common variable-angle busbar trunking consists of two busbar trunkings rotatably mounted together, with a locking structure at the connection point. The conductor plates inside the two busbar trunkings are rotatably connected and mutually abut each other (ensuring stable current flow). During installation, the installer applies external force to rotate the busbar trunking. Once the angle between the two busbar trunkings changes to a suitable position, the locking structure secures the busbar trunking in place.

[0004] When the angle of the variable-angle busbar changes, the conductor plates rotate relative to each other, and the conductor plates that are in contact with each other will rub against each other. Since the included angle of the busbar may be adjusted multiple times during the installation process, the friction between the conductor plates will be aggravated, which will lead to frictional loss at the connection of the busbar and may result in poor contact, posing a potential electrical hazard. Utility Model Content

[0005] The purpose of this invention is to provide a flexible bend busbar trunking with variable angle to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A variable-angle bent busbar trunking includes a first trunking and a second trunking;

[0008] A first turntable is installed at one end of the first wire groove; a second turntable is installed at one end of the second wire groove and is rotatably connected to the first turntable; a fixed rod is installed on the first turntable and is rotatably connected to the second turntable.

[0009] Both the first and second wire grooves are equipped with wire guide plates; the two sets of wire guide plates abut against each other; and the wire guide plate on the second wire groove is rotatably connected to the fixing rod.

[0010] A locking structure is provided between the first groove and the second groove, and the locking structure can restrict the rotation of the first groove and the second groove;

[0011] The second wire groove is provided with an unlocking structure, which can release the restriction state of the locking structure and the contact state between the wire plates, so that the second wire groove and the first wire groove can rotate relative to each other.

[0012] As described above, the variable-angle bend busbar groove includes: a locking structure comprising a fixed toothed ring mounted on the second turntable; a sliding toothed ring slidably engaged with the fixed toothed ring on the fixed rod; multiple sets of first baffles mounted on the fixed rod; a return spring wrapped around the fixed rod; and two ends of the return spring respectively abutting against one of the first baffles and the sliding toothed ring.

[0013] As described above, the variable-angle bend busbar groove includes a locking structure that further comprises a fitting block mounted on the second groove; a slider that abuts against the sliding toothed ring is slidably mounted in the fitting block; a relief spring that abuts against the slider is mounted in the fitting block; a limit groove is formed on the slider; a slide rod is slidably fitted on the second groove, and a limit block that fits into the limit groove is mounted on the slide rod.

[0014] As described above, the variable-angle bend busbar groove has an inclined surface at one end of the slider near the sliding toothed ring.

[0015] As described above, the variable-angle bend busbar trough includes an unlocking structure comprising a knob rotatably mounted on the second trough; a protruding post mounted on the knob; a slanted groove on the slide rod that slides into the protruding post; and a second baffle mounted on the slide rod that abuts against the conductor plate.

[0016] As described above, the variable-angle bend busbar has multiple sets of abutment springs wrapped around the fixing rod; the two ends of the abutment springs abut against the conductor plate and the first baffle, respectively.

[0017] As described above, the variable-angle bend busbar trough has a rubber baffle that is slidably installed on the first trough and slidably connected to the second trough.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the unlocking structure releases the restriction state of the locking structure and separates the conductor plates from each other; after the locking structure is released, the second wire groove and the first wire groove support can rotate freely. At this time, an external force is applied to drive the two wire grooves to rotate relative to each other, thereby increasing or decreasing the included angle between the two wire grooves according to actual needs; the conductor plates are separated from each other: when the second wire groove and the first wire groove rotate relative to each other, the conductor plates will also rotate relative to each other. Since the conductor plates are separated from each other, there is no friction loss between the conductor plates, thereby improving the conductivity stability of the busbar. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a bend busbar with variable angle.

[0020] Figure 2 This is a schematic diagram of the structure of the first and second grooves in a bend busbar with variable angle.

[0021] Figure 3 for Figure 1 A structural diagram from the perspective of an explosion.

[0022] Figure 4 for Figure 3 A schematic diagram of the structure at point A in the middle.

[0023] Figure 5 This is a schematic diagram of the limiting block in a bend busbar with variable angle.

[0024] Figure 6 This is a schematic diagram of the knob in a bend busbar with variable angle.

[0025] In the diagram: 1. First groove; 101. First turntable;

[0026] 2. Second cable tray; 201. Second turntable;

[0027] 3. Conductor board;

[0028] 4. Fixing rod; 401. First baffle;

[0029] 5. Fix the toothed ring;

[0030] 6. Sliding toothed ring;

[0031] 7. Return spring;

[0032] 8. Anti-collision spring;

[0033] 9. Interlocking blocks;

[0034] 10. Slider; 1001. Limiting groove;

[0035] 11. Yield spring;

[0036] 12. Knob; 1201. Protruding post;

[0037] 13. Slide rod; 1301. Inclined groove; 1302. Limiting block; 1303. Second baffle;

[0038] 14. Rubber baffle. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0040] Please see Figures 1-6 As an embodiment of the present utility model, the variable angle bent busbar groove includes a first groove 1 and a second groove 2;

[0041] A first turntable 101 is installed at one end of the first wire groove 1; a second turntable 201 rotatably connected to the first turntable 101 is installed at one end of the second wire groove 2; a fixing rod 4 rotatably connected to the second turntable 201 is installed on the first turntable 101.

[0042] Both the first wire groove 1 and the second wire groove 2 are equipped with wire guide plates 3; the two sets of wire guide plates 3 abut against each other; and the wire guide plate 3 on the second wire groove 2 is rotatably connected to the fixing rod 4.

[0043] A locking structure is provided between the first groove 1 and the second groove 2, and the locking structure can restrict the rotation of the first groove 1 and the second groove 2;

[0044] The second wire groove 2 is provided with an unlocking structure, which can release the restriction state of the locking structure and the contact state between the wire plate 3, so that the second wire groove 2 and the first wire groove 1 can rotate relative to each other.

[0045] In this embodiment, the first cable tray 1 and the second cable tray 2 are restricted by a locking structure. At this time, the first cable tray 1 and the second cable tray 2 cannot rotate, so that the included angle between them is fixed. This ensures that the angle of the busbar tray will not change easily after installation, thereby ensuring the stability of the installation.

[0046] The conductor plates 3 on the two wire slots abut against each other to ensure the stability of current flow.

[0047] The locking structure is released by unlocking the structure, which separates the conductor plates 3 from each other. After the locking structure is released, the second groove 2 and the first groove 1 support can rotate freely. At this time, an external force is applied to drive the two grooves to rotate relative to each other, thereby increasing or decreasing the included angle between the two grooves according to actual needs. The conductor plates 3 are separated from each other. When the second groove 2 and the first groove 1 rotate relative to each other, the conductor plates 3 will also rotate relative to each other. Since the conductor plates 3 are separated from each other, there is no friction loss between the conductor plates 3, thereby improving the stability of the busbar's conductivity.

[0048] After the included angle between the two wire slots is changed to meet the usage requirements, the locking state of the locking structure is restored by unlocking the structure, and the wire plates 3 will also come into contact again.

[0049] By locking the first cable tray 1 and the second cable tray 2, it can be ensured that the busbar tray rotation will not be easily changed after installation. The unlocking structure can release the restriction of the locking structure, thereby allowing the busbar tray to change its angle. Furthermore, the unlocking structure can cause the conductor plates 3 to separate from each other, which can reduce the loss of the conductor plates 3 when the busbar tray angle changes, thereby improving the conductivity stability and service life of the busbar tray.

[0050] As a further embodiment of this utility model, the locking structure includes a fixed toothed ring 5 mounted on the second turntable 201; a sliding toothed ring 6 that engages with the fixed toothed ring 5 is slidably fitted on the fixed rod 4; multiple sets of first baffles 401 are mounted on the fixed rod 4; a return spring 7 is wrapped around the fixed rod 4; and the two ends of the return spring 7 respectively abut against one of the first baffles 401 and the sliding toothed ring 6.

[0051] As a further embodiment of this utility model, the locking structure further includes a fitting block 9 installed on the second groove 2; a slider 10 that abuts against the sliding toothed ring 6 is slidably installed in the fitting block 9; a relief spring 11 that abuts against the slider 10 is installed in the fitting block 9; a limiting groove 1001 is formed on the slider 10; a sliding rod 13 is slidably fitted on the second groove 2, and a limiting block 1302 that fits into the limiting groove 1001 is installed on the sliding rod 13.

[0052] In this embodiment, in the locked state, the fixed toothed ring 5 and the sliding toothed ring 6 are engaged with each other; at this time, when the second wire groove 2 is rotated and the fixed toothed ring 5 is driven to rotate by the second turntable 201, the sliding toothed ring 6 will restrict the rotation of the fixed toothed ring 5, thereby restricting the rotation of the second wire groove 2, so as to fix the rotation angle of the busbar groove.

[0053] When the sliding toothed ring 6 restricts the rotation of the fixed toothed ring 5, the sliding toothed ring 6 tends to move toward the first baffle 401 and compress the return spring 7.

[0054] As the sliding toothed ring 6 abuts against the slider 10, the tendency of the sliding toothed ring 6 to move will change into the tendency of the slider 10 to slide away from the fixed rod 4 in the interlocking block 9, and the relief spring 11 will have the tendency to be compressed.

[0055] Since the limiting block 1302 and the limiting groove 1001 are interlocked, the tendency of the slider 10 to move is canceled out, so the slider 10 cannot move, thereby allowing the sliding toothed ring 6 to mesh tightly with the fixed toothed ring 5.

[0056] The locking structure restricts the first cable tray 1 and the second cable tray 2, preventing them from rotating and fixing the included angle between them. This ensures that the angle of the busbar tray will not easily change after installation, thus guaranteeing the stability of the installation.

[0057] When the unlocking structure releases the locking structure (i.e., the limiting block 1302 disengages from the limiting groove 1001), the second groove 2 rotates, causing the fixed toothed ring 5 to rotate via the second turntable 201. The surfaces where the fixed toothed ring 5 and the sliding toothed ring 6 mesh are inclined planes, so when the fixed toothed ring 5 rotates, it can compress the sliding toothed ring 6, causing it to move towards the first baffle 401 and compress the return spring 7; thus, the fixed toothed ring 5 and the sliding toothed ring 6 disengage. During the rotation of the second groove 2, the fixed toothed ring 5 and the sliding toothed ring 6 repeatedly engage and disengage to increase the rotational resistance of the second groove 2, thereby preventing excessive rotational speed and repeated adjustments to the angle of the main groove.

[0058] During the movement of the sliding toothed ring 6, it presses against the slider 10, allowing the slider 10 to slide within the interlocking block 9 and compressing the relief spring 11.

[0059] As a further improvement of this invention, the end of the slider 10 near the sliding toothed ring 6 is an inclined surface.

[0060] In this embodiment, the inclined surface of the slider 10 can convert the force parallel to the fixed rod 4 into a force perpendicular to the fixed rod 4, thereby allowing the slider 10 to move away from the fixed rod 4 to make way, thereby reducing the resistance of the sliding toothed ring 6.

[0061] As a further embodiment of this utility model, the unlocking structure includes a knob 12 rotatably mounted on the second wire groove 2; a protruding post 1201 is mounted on the knob 12; a slanted groove 1301 is provided on the slide rod 13 to slide and engage with the protruding post 1201; and a second baffle 1303 is mounted on the slide rod 13 to abut against the wire plate 3.

[0062] In this embodiment, when it is necessary to change the angle of the busbar, the knob 12 is rotated by applying external force, thereby driving the protruding post 1201 to rotate. Through the sliding engagement of the protruding post 1201 and the inclined groove 1301, the sliding rod 13 can be driven to move away from the knob 12, thereby driving the limiting block 1302 to move downward. This causes the fitting area between the limiting block 1302 and the limiting groove 1001 to gradually decrease. And when the limiting block 1302 and the limiting groove 1001 are disengaged, the locking structure is released from its restrictive state.

[0063] During the movement of the slide bar 13, the second baffle 1303 will move synchronously, thereby causing the conductor plate 3 on the second cable trough 2 to bend locally, so that the conductor plate 3 on the first cable trough 1 and the conductor plate 3 on the second cable trough 2 will separate from each other, thereby reducing the frictional loss between the conductor plates 3 when changing the angle of the busbar trough and avoiding poor contact.

[0064] As a further embodiment of this utility model, the fixing rod 4 is wrapped with multiple sets of abutment springs 8; the two ends of the abutment springs 8 abut against the guide plate 3 and the first baffle 401 respectively.

[0065] In this embodiment, when the conductor plates 3 separate from each other, the conductor plates 3 will compress the abutment spring 8; after the busbar trough angle is changed, the knob 12 is rotated in the opposite direction to drive the slide bar 13 to the southeast of the knob 12, thereby driving the limit block 1302 to re-engage with the limit groove 1001, so that the locking structure returns to the restricted state. During this process, the elastic force of the abutment spring 8 will drive the conductor plates 3 to abut against each other again to ensure the stability of the busbar trough's conductivity.

[0066] As a further embodiment of this utility model, a rubber baffle 14 that is slidably connected to the second wire groove 2 is slidably installed on the first wire groove 1.

[0067] In this embodiment, the rubber baffle 14 is used to seal the first turntable 101 and the second turntable 201; during the rotation of the second groove 2, the rubber baffle 14 will slide between the first groove 1 and the second groove 2 to ensure sealing.

[0068] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A variable-angle bend busbar trough, comprising a first trough (1) and a second trough (2); Its features are, A first turntable (101) is installed at one end of the first wire groove (1); a second turntable (201) rotatably connected to the first turntable (101) is installed at one end of the second wire groove (2); a fixed rod (4) rotatably connected to the second turntable (201) is installed on the first turntable (101). Both the first wire groove (1) and the second wire groove (2) are equipped with wire guide plates (3); the two sets of wire guide plates (3) abut against each other; and the wire guide plate (3) on the second wire groove (2) is rotatably connected to the fixing rod (4); A locking structure is provided between the first groove (1) and the second groove (2), and the locking structure can restrict the rotation of the first groove (1) and the second groove (2); The second wire groove (2) is provided with an unlocking structure, which can release the restriction state of the locking structure and the contact state between the wire plate (3) so that the second wire groove (2) and the first wire groove (1) can rotate relative to each other.

2. The variable-angle bent busbar trunking according to claim 1, characterized in that, The locking structure includes a fixed toothed ring (5) mounted on the second turntable (201); a sliding toothed ring (6) that engages with the fixed toothed ring (5) is slidably fitted on the fixed rod (4); multiple sets of first baffles (401) are mounted on the fixed rod (4); a return spring (7) is wrapped around the fixed rod (4); the two ends of the return spring (7) respectively abut against one of the first baffles (401) and the sliding toothed ring (6).

3. The variable-angle bent busbar trunking according to claim 2, characterized in that, The locking structure further includes a fitting block (9) installed on the second groove (2); a slider (10) that abuts against the sliding toothed ring (6) is slidably installed in the fitting block (9); a relief spring (11) that abuts against the slider (10) is installed in the fitting block (9); a limiting groove (1001) is provided on the slider (10); a slide rod (13) is slidably fitted on the second groove (2), and a limiting block (1302) that fits into the limiting groove (1001) is installed on the slide rod (13).

4. A variable-angle bend busbar trunking according to claim 3, characterized in that, The end of the slider (10) near the sliding toothed ring (6) is an inclined surface.

5. A variable-angle bend busbar trunking according to claim 3, characterized in that, The unlocking structure includes a knob (12) rotatably mounted on the second wire groove (2); a protruding post (1201) is mounted on the knob (12); a slanted groove (1301) is provided on the slide rod (13) to slide and engage with the protruding post (1201); and a second baffle (1303) is mounted on the slide rod (13) to abut against the wire plate (3).

6. A variable-angle bend busbar trunking according to claim 4, characterized in that, The fixing rod (4) is wrapped with multiple sets of abutment springs (8); the two ends of the abutment springs (8) abut against the guide plate (3) and the first baffle (401) respectively.

7. A variable-angle bend busbar trunking according to claim 1, characterized in that, A rubber baffle (14) that is slidably connected to the second wire groove (2) is slidably installed on the first wire groove (1).

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