Bus duct starting end box

Abstract

The utility model relates to the technical field of starting end boxes, in particular to a bus duct starting end box which comprises a box body, a through opening is formed in the bottom of the box body, a first L-shaped clamping groove and a second L-shaped clamping groove are fixedly connected to the two sides of the bottom of the box body, a spring is fixedly connected to one side of the interior of the first L-shaped clamping groove, one end of the spring is fixedly connected with a push plate, and the other end of the spring is fixedly connected with a second L-shaped clamping groove. A bottom plate is clamped in the first L-shaped clamping groove and the second L-shaped clamping groove, and a circuit breaker is fixedly installed in the box body. The bus duct has the advantages that one side of the bottom plate is firstly inserted into the L-shaped clamping groove I, the bottom plate is pushed to enable the other side of the bottom plate to cross the L-shaped clamping groove II, then the bottom plate is put down, and the spring pushes the bottom plate to enter the L-shaped clamping groove II through the push plate, so that clamping is completed, the operation is simple, the assembly efficiency is improved, a conductive copper bar at the end part of the bus duct can be directly inserted into a slot on a wiring groove, and the assembly efficiency is improved. Therefore, the connection between the circuit breaker and the bus duct is completed, the operation is simple, and the wiring efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of start-end boxes, in particular to a bus duct start-end box. Background Art

[0002] The beginning of the bus duct is also called the incoming line section, which forms a bus duct power supply introduction unit with the starting box. The beginning of the bus duct in the starting box is connected to the cable led out of the substation or distribution room, which plays the role of power transmission. After the power cable is laid from the substation along the cable trench, bridge, and cable duct to the electrical shaft, it extends from the hole directly below the starting box and enters the starting box vertically upward from the bottom hole of the box. The cable is connected to the circuit breaker terminal in the starting box, and the terminal at the output end of the circuit breaker is connected to the bus duct to realize power transmission.

[0003] The open-mouthed start-end box for convenient cable installation disclosed in Chinese patent CN208923756U can remove the lower door frame crossbeam when making cable heads and installing cables in the electrical shaft, so that each cable can be swung backward from the horizontal direction of the box body or pushed into the box body, and the cable no longer needs to be laboriously inserted from the bottom vertical direction when entering the start-end box. After the cable is installed, the lower door frame crossbeam is installed, which solves the inconvenience caused by the cable repeatedly entering and exiting the bottom hole of the box body, improves product quality, is convenient to use, reduces the labor intensity of power installers, reduces installation time, and improves work efficiency. However, while solving the problem, the open-mouthed start-end box for convenient cable installation has the following defects:

[0004] The lower door frame crossbeam and the movable bottom edge beam are fixed to the starting box body by bolts. When fixing, tools such as wrenches are needed, which is inconvenient to operate. In the process of turning the wrench, it will collide with the starting box body, and the wrench needs to be moved repeatedly, so the assembly efficiency is low. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical defects described in the background technology.

[0006] To this end, one purpose of the utility model is to provide a bus duct start box, aiming to solve the problem that the open-mouth start box for convenient cable installation in the prior art is inconvenient to operate and has low assembly efficiency.

[0007] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a bus duct starting box, including a box body, a through opening is opened at the bottom of the box body, and both sides of the bottom of the box body are fixedly connected with L-slot 1 and L-slot 2, one side of the interior of the L-slot 1 is fixedly connected with a spring, one end of the spring is fixedly connected with a push plate, the interior of the L-slot 1 and the L-slot 2 is clamped with a bottom plate, and a circuit breaker is fixedly installed inside the box body.

[0008] Preferably, any of the above schemes is that a hole groove is opened on the top of the box body, a guide rod is fixedly connected to the inner wall of the box body, a wiring groove is slidably connected to the outer surface of the guide rod, a plurality of slots are opened on the top of the wiring groove, a spring sheet is fixedly connected to the inner wall of the slot, a conductive plate is fixedly connected to one side of the spring sheet, and a bent plate is fixedly connected to the top of the conductive plate.

[0009] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0010] 1. Insert one side of the bottom plate into L slot 1 first, push the bottom plate so that the other side of the bottom plate passes over L slot 2, and then put the bottom plate down. At this time, the spring pushes the bottom plate into L slot 2 through the push plate, thereby completing the connection. The operation is simple and the assembly efficiency is improved.

[0011] 2. The conductive copper busbar at the end of the bus duct can be directly inserted into the slot on the wiring duct to complete the connection between the circuit breaker and the bus duct. The operation is simple and the wiring efficiency is further improved.

[0012] 3. The wiring trough is slidably connected to the inside of the box, so when there is a certain offset in the fixed position of the box, there is no need to move the box, which improves practicality.

[0013] 4. By setting the limit block, after the bottom plate is inserted between L slot 1 and L slot 2, the top of the limit block contacts the top of the inner wall of L slot 1, thereby avoiding the problem of up and down movement of one side of the bottom plate and improving stability.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a structural schematic diagram according to the utility model;

[0017] Figure 2 It is a structural schematic diagram of a box according to the utility model;

[0018] Figure 3 It is a structural schematic diagram of the L card slot 1 and L card slot 2 in the box body according to the utility model;

[0019] Figure 4 It is a structural schematic diagram of the bottom plate according to the utility model;

[0020] Figure 5It is a structural schematic diagram of the wiring slot according to the utility model.

[0021] Among them: 1. box body, 11. through port, 12. L card slot 1, 13. L card slot 2, 14. spring, 15. push plate, 16. hole slot, 17. through hole, 2. bottom plate, 21. limit block, 22. convex plate, 23. convex strip, 3. door panel, 31. door lock, 4. circuit breaker, 5. guide rod, 51. support block, 52. slide groove, 6. wiring groove, 61. slot, 62. spring sheet, 63. conductive plate, 64. bent plate. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-4 As shown, a bus duct start box of this embodiment includes a box body 1, a through hole 17 is opened in the box body 1, and is used to insert expansion bolts to fix the box body 1 on the wall. A through hole 11 is opened at the bottom of the box body 1, and the cable can be directly put into the box body 1 from the through hole 11, and does not need to be passed from the bottom of the box body 1. Both sides of the bottom of the box body 1 are fixedly connected with an L card slot 12 and an L card slot 2 13, and the L card slot 12 and the L card slot 2 13 are arranged opposite to each other. Figure 3 As shown, a spring 14 is fixedly connected to one side of the interior of the L-slot 12, and a push plate 15 is fixedly connected to one end of the spring 14. The interior of the L-slot 12 and the L-slot 2 13 are clamped with the bottom plate 2. One side of the bottom plate 2 is first inserted into the L-slot 12 so that the spring 14 is compressed by the push plate 15. When the other side of the bottom plate 2 passes over the L-slot 2 13, the bottom plate 2 is lowered so that the side of the bottom plate 2 away from the L-slot 12 corresponds to the L-slot 2 13. At this time, the bottom plate 2 is released, the spring 14 rebounds, and the bottom plate 2 is pushed into the L-slot 2 13 through the push plate 15, thereby realizing the clamping of the bottom plate 2. The circuit breaker 4 is fixedly installed inside the box body 1, and the cable is inserted into the box body 1 through the through hole 11 and connected to the wiring terminal below the circuit breaker 4.

[0025] Furthermore, a door panel 3 is hinged on the front side of the box body 1 , and a door lock 31 is provided on the door panel 3 .

[0026] Specifically, a hole slot 16 is provided on the top of the box body 1 , and the bus duct is inserted into the box body 1 through the hole slot 16 .

[0027] In order to install the spring 14 with sufficient elastic force, the L card slot 12 is set higher than the L card slot 2 13. Therefore, after the bottom plate 2 is inserted into the L card slot 12 and the L card slot 2 13, the side of the bottom plate 2 located in the L card slot 12 will move up and down, which is not firm. In order to solve this problem, the present application proposes embodiment 1: Figure 4 As shown, the part where the bottom plate 2 is inserted into the L-slot 12 is fixedly connected to the limiting block 21, and the top of the limiting block 21 is provided with a chamfer to ensure that the side of the bottom plate 2 fixed with the limiting block 21 can be smoothly inserted into the L-slot 12. When the bottom plate 2 is inserted into the L-slot 12, the top of the limiting block 21 contacts the top of the inner wall of the L-slot 12, thereby avoiding the problem of one side of the bottom plate 2 moving up and down.

[0028] Furthermore, a convex plate 22 is fixedly connected to the bottom of the bottom plate 2. After the bottom plate 2 is inserted into the L-slot 12 and the L-slot 2, 13, the convex plate 22 fills the opening 11, so that the bottom surface of the box body 1 is flush. A convex strip 23 is fixedly connected to one side of the bottom plate 2. The convex strip 23 fills the position between the two L-slot 2s 13 on both sides of the inner wall of the box body 1, so that after the door panel 3 is closed, the convex strip 23 contacts the door panel 3.

[0029] Example 2: Figure 5 As shown, the inner wall of the box body 1 is fixedly connected with a guide rod 5, and the outer surface of the guide rod 5 is slidably connected with a wiring groove 6. A plurality of slots 61 are provided on the top of the wiring groove 6, and a spring sheet 62 is fixedly connected to the inner wall of the slot 61. The spring sheet 62 is arc-shaped, and one end thereof is fixedly connected to the inner wall of the slot 61. A conductive plate 63 is fixedly connected to one side of the spring sheet 62. The conductive plate 63 is connected to the wiring terminal at the top of the circuit breaker 4 through a cable. A plurality of conductive copper bars protruding from the end of the bus duct can be directly inserted into the slot 61. The spring sheet 62 provides support force for the conductive plate 63, so that the conductive plate 63 is connected to the conductive copper bar of the bus duct to realize power transmission, and a bent plate 64 is fixedly connected to the top of the conductive plate 63 to facilitate the conductive copper bar of the bus duct to be inserted between two relatively conductive plates 63.

[0030] Specifically, a support block 51 is fixedly connected to the back of the wiring slot 6 , a sliding groove 52 is provided on the side of the support block 51 , and the support block 51 is slidably connected to the outer surface of the guide rod 5 through the sliding groove 52 .

[0031] The working principle of the utility model is as follows: when in use, a hole is punched on the wall, and an expansion bolt is used to penetrate the through hole 17 and inserted into the hole on the wall, so that the box body 1 is fixed to the wall through the expansion bolt, and the cable drawn from the electrical shaft is put into the box body 1 through the through hole 11, and then connected to the wiring terminal below the circuit breaker 4, and then one side of the bottom plate 2 is first inserted into the L card slot 1 12, and the spring 14 is compressed by pushing the bottom plate 2. When the other side of the bottom plate 2 passes over the L card slot 2 13, the bottom plate 2 is lowered so that the side of the bottom plate 2 away from the L card slot 12 corresponds to the L card slot 2 13, and the bottom plate 2 is released. The spring 14 pushes the bottom plate 2 into the L card slot 2 13 through the push plate 15, thereby completing the clamping;

[0032] When connecting to the bus duct, one end of the bus duct is inserted into the box body 1 through the hole groove 16, so that the multiple conductive copper bars of the bus duct correspond to the multiple slots 61 respectively. If the conductive copper bars do not correspond to the slots 61 due to a certain offset in the fixed position of the box body 1, the position of the slots 61 can be adjusted by sliding the wiring groove 6 to make it correspond to the conductive copper bars of the bus duct, and then the bus duct can be inserted downward. During the process of inserting the conductive copper bars of the bus duct into the slots 61, the conductive plates 63 are squeezed to both sides, and the spring sheets 62 are deformed by force. The elastic force of the spring sheets 62 always supports the conductive plates 63, so that the conductive plates 63 can fully contact with the conductive copper bars, thereby completing the connection of the bus duct.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. When installing the bottom plate 2, one side of the bottom plate 2 is first inserted into the L-slot 12. By pushing the bottom plate 2, the other side of the bottom plate 2 passes over the L-slot 2 13, and then the bottom plate 2 is lowered so that the side of the bottom plate 2 away from the L-slot 12 corresponds to the L-slot 2 13. At this time, the spring 14 pushes the bottom plate 2 into the L-slot 2 13 through the push plate 15, thereby completing the clamping, which is simple to operate and improves the assembly efficiency.

[0035] 2. By setting the wiring slot 6, when the bus duct is inserted into the starting box, the conductive copper bar at the end of the bus duct can be directly inserted into the slot 61 on the wiring slot 6, and the spring sheet 62 supports the conductive plate 63 so that the conductive plate 63 fits tightly with the conductive copper bar, thereby completing the connection between the circuit breaker 4 and the bus duct, which is simple to operate and further improves the wiring efficiency.

[0036] 3. The wiring slot 6 is slidably connected to the inside of the box body 1. Therefore, when there is a certain offset in the fixed position of the box body 1, resulting in the mismatch between the slot 61 and the conductive copper busbar of the bus duct, the position of the slot 61 can be adjusted by sliding the wiring slot 6, thereby ensuring that the conductive copper busbar is smoothly inserted into the slot 61 without moving the box body 1, thereby improving practicality.

[0037] 4. By setting the limit block 21, after the bottom plate 2 is inserted between the L-slot 1 12 and the L-slot 2 13, the top of the limit block 21 abuts against the top of the inner wall of the L-slot 1 12, thereby avoiding the problem of one side of the bottom plate 2 moving up and down and improving stability.

Claims

1. A bus duct start box, characterized in that: The invention comprises a box body (1), wherein a through opening (11) is provided at the bottom of the box body (1), and L-slot 1 (12) and L-slot 2 (13) are fixedly connected to both sides of the bottom of the box body (1), a spring (14) is fixedly connected to one side of the interior of the L-slot 1 (12), and a push plate (15) is fixedly connected to one end of the spring (14), a bottom plate (2) is clamped inside the L-slot 1 (12) and the L-slot 2 (13), and a circuit breaker (4) is fixedly installed inside the box body (1).

2. The bus duct start box according to claim 1, characterized in that: The portion where the bottom plate (2) is inserted into the L-shaped slot 1 (12) is fixedly connected to a limiting block (21).

3. The bus duct start box according to claim 2, characterized in that: A convex plate (22) is fixedly connected to the bottom of the base plate (2), and a convex strip (23) is fixedly connected to one side of the base plate (2).

4. The bus duct start box according to claim 1, characterized in that: A door panel (3) is hingedly connected to the front side of the box body (1), and a door lock (31) is arranged on the door panel (3).

5. The bus duct start box according to claim 1, characterized in that: The top of the box body (1) is provided with a hole groove (16).

6. The bus duct start box according to claim 5, characterized in that: The inner wall of the box body (1) is fixedly connected to a guide rod (5), the outer surface of the guide rod (5) is slidably connected to a wiring slot (6), a plurality of slots (61) are provided at the top of the wiring slot (6), a spring sheet (62) is fixedly connected to the inner wall of the slot (61), a conductive plate (63) is fixedly connected to one side of the spring sheet (62), and a bent plate (64) is fixedly connected to the top of the conductive plate (63).

7. The bus duct start box according to claim 6, characterized in that: A support block (51) is fixedly connected to the back of the wiring slot (6), a sliding groove (52) is provided on the side of the support block (51), and the support block (51) is slidably connected to the outer surface of the guide rod (5) through the sliding groove (52).

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