Busbar for preventing screw tilting

Abstract

The utility model relates to the technical field of insulating component on busbar, disclose a kind of busbar of preventing screw to dump, including busbar body, the mounting hole being set on busbar body, fastener being passed in mounting hole and a pair of insulating buckling that are buckled on busbar body and have opening, the limiting structure for limiting fastener completely to separate from mounting hole is equipped on insulating buckling, limiting structure includes the limiting ridge for fastener to dump when abutting for being protruded on the inner wall of insulating buckling, fastener abuts against limiting ridge when locally located in mounting hole, when fastener is upturned, subsequently abuts against limiting ridge, and limiting ridge can guarantee that fastener always has a part in mounting hole, when people can use tool to move fastener, the part of fastener in mounting hole can be used as guide, and it can be easily reset to the state of vertical through mounting hole.

Description

Technical Field

[0001] This utility model relates to the technical field of insulating components on conductive busbars, and in particular to a busbar assembly that prevents tipping. Background Technology

[0002] A busbar, also known as a busbar or busbar assembly, is a thick metal conductor used in electrical systems to collect and distribute current. Existing busbars typically have an insulating clip at both ends to form a busbar assembly. The specific structure of the busbar assembly can be found in the attached diagram of the instruction manual. Figure 1 As shown, it includes a busbar body, a mounting hole on the busbar body, a screw passing through the mounting hole, and a pair of insulating buckles that are interlocked and fixed to the busbar body. The screw is located inside the insulating buckle, and the insulating buckle has an opening for a tool to be inserted.

[0003] The aforementioned busbars, screws, and insulating clips are pre-assembled into components before being installed at specific locations in the electrical system. However, these components have a drawback: according to... Figure 2 As shown, when the entire component is subjected to vibration, bumps, or the screw is subjected to an upward lifting force, the screw is very likely to detach from the busbar and tilt, eventually lying horizontally inside the insulating buckle, causing the busbar to malfunction. Utility Model Content

[0004] In view of the shortcomings of existing busbars, where screws can easily detach from the busbar and lie horizontally inside the insulating clip, causing the busbar to malfunction, the purpose of this utility model is to provide a busbar that can prevent screws from tipping over.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: A busbar for preventing screws from tipping over includes a busbar body, a mounting hole in the busbar body, a fastener passing through the mounting hole, and a pair of insulating buckles with openings that are fastened to the busbar body. The insulating buckles are provided with a limiting structure for preventing the fasteners from completely disengaging from the mounting hole. The limiting structure includes a limiting protrusion on the inner wall of the insulating buckle for the fasteners to abut against when they tip over. When the fasteners abut against the limiting protrusion, they are partially located inside the mounting hole.

[0006] Preferably, the limiting protrusion is provided around and spaced apart from the mounting hole on the inner wall of the insulating buckle.

[0007] Using the above solution, when the fastener is pushed upward, it will tilt in any direction and then abut against the limiting protrusion. The limiting protrusion ensures that a part of the fastener is always inside the mounting hole. When people can use tools to move the fastener, the part of the fastener inside the mounting hole can act as a guide and can be easily reset to the state of vertically passing through the mounting hole.

[0008] Preferably, the limiting structure includes a limiting piece that is movable relative to the fastener and, when moved to be close to the fastener, serves to limit the fastener from disengaging from the mounting hole.

[0009] As a preferred embodiment, a set of limiting plates is provided on each of the two insulating buckles.

[0010] The above solution takes into account the various working conditions during busbar installation. When the fastener needs to be installed horizontally, the fastener itself will be parallel or tilted to the ground, which greatly increases the probability of the fastener sliding out of the mounting hole. The limiting protrusion can ensure that the fastener will not completely leave the mounting hole, but when the fastener partially leaves the mounting hole, it will still tilt and needs to be manually adjusted. After adjustment, if there is no manual restraint on the fastener, the phenomenon of the fastener sliding out of the mounting block may occur repeatedly. In this solution, the limiting piece can prevent the fastener from leaving the mounting hole and can effectively prevent the fastener from sliding out of the mounting hole and tilting. The lifting and lowering setting of the limiting plate is taken into consideration that the insulating buckle of this solution adopts an interlocking assembly method. If the limiting plate is always in the lowered position, it may interfere with the fastener during the fastening. Therefore, in this solution, before the insulating buckle is fastened, the limiting plate can be adjusted upward to a height away from the fastener to prevent interference during the fastening. After the fastening is fastened, the limiting plate is adjusted downward to a height close to the fastener to limit the fastener. Another advantage of the lifting and lowering setting of the limiting plate is that it can adapt to more types of fasteners. The transverse protrusion limiting strip mentioned in the previous solution can achieve the same technical effect as this solution. However, the insulating buckle is generally made of plastic. In actual production, the setting of the protrusion strip is usually designed as an integral injection molded reinforcing rib. The position of the reinforcing rib is fixed. However, there are many types of fasteners. The two may interfere or have a large gap due to the height difference. Therefore, the designer needs to set up multiple sets of insulating buckles with reinforcing ribs at different heights to solve the problem of poor part compatibility, which increases the mold development cost. In contrast, the limiting plate in this solution can flexibly adapt to various fasteners by lifting and lowering, with better compatibility, eliminating the need to develop multiple sets of molds.

[0011] Preferably, the limiting piece has a vertically protruding guide rod, and the insulating buckle has a guide hole for the guide rod to move vertically up and down. After the guide rod descends to engage with the fastener, it can remain in the current position.

[0012] Preferably, an elastic element is provided between the limiting piece and the inner wall of the insulating buckle to drive the limiting piece to move downward, and a stop piece is fixed at the end of the guide rod away from the limiting piece.

[0013] Preferably, the elastic element includes a spring sleeved on the guide rod and located between the limiting piece and the inner wall of the insulating buckle.

[0014] Using the above solution, the limiting plate in this solution always remains in the lowered position due to the elastic force of the spring, and is not easy to rise due to the vibration or shaking of the busbar assembly, thus enhancing the stability of the limiting plate; even if the fastener is subjected to a lifting force, the large end of the fastener will abut against the limiting plate when it rises. Since this solution sets two sets of limiting plates symmetrically distributed on both sides of the fastener for abutment, the fastener remains stable when it moves upward and is not easy to tip over.

[0015] Preferably, the guide rod includes a first rod segment that is elastically interference-fitted with the guide hole and a second rod segment with a diameter smaller than that of the guide hole, the first rod segment and the second rod segment being distributed vertically.

[0016] The purpose of dividing the guide rod into two segments in this scheme is to simplify the assembly steps of the insulating buckle and the busbar body. The second segment serves as a guide to facilitate the insertion of the guide rod. When the guide rod descends to the point where the first segment contacts the guide hole, it stops descending due to the frictional force generated by the interference between the two. That is, when people fasten the insulating buckle, the limiting piece will remain in its current position and will not interfere with the fastener. After the fastening is completed, the guide rod can be pressed to drive the limiting piece to continue descending and limit the fastener. At this time, the first segment and the guide hole are in an elastic interference state, and the frictional force of the interference needs to be overcome to carry out the lifting and lowering movement, so that the fastener has a certain resistance to the upward lifting force. This solution achieves the limiting of the guide rod by using the frictional force generated by the interference fit between the guide rod body and the guide hole, without the need for the elastic force of the elastic element, thus eliminating the need for setting up the elastic element and reducing production costs; In the previous design, the guide rod could slide down freely, so it was necessary to manually control the guide rod to a height that would not interfere with the fasteners when installing the insulating buckle. In this design, the guide rod stops descending when it slides down to the junction of the second and first rod segments in the guide hole. This means that the guide rod will automatically maintain itself at that height when the insulating buckle is installed, without the need to apply any additional force, making the installation of the insulating buckle simpler.

[0017] This utility model has significant technical effects due to the adoption of the above technical solutions: when the fastener is pushed upward, it will tilt in any direction and then abut against the limiting protrusion. The limiting protrusion can ensure that a part of the fastener is always located in the mounting hole. When people can use tools to move the fastener, the part of the fastener located in the mounting hole can act as a guide and can be easily reset to the state of vertically passing through the mounting hole. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the disassembled state of existing busbar components in the background technology; Figure 2 This is a schematic diagram of the disassembled state of existing busbar components in the background technology; Figure 3 This is a schematic diagram of the disassembled state of a busbar for preventing screws from tipping over in Embodiment 1; Figure 4 This is a schematic diagram of the disassembled state of a busbar for preventing screws from tipping over in Embodiment 2; Figure 5 yes Figure 4 A schematic diagram showing the state change of the limiting piece when it moves to engage with the fastener; Figure 6 This is a schematic diagram of the disassembled state of a busbar for preventing screws from tipping over in Embodiment 2; Figure 7 This is a top view of a busbar for preventing screws from tipping over in Embodiment 3; Figure 8 yes Figure 7 A sectional view of AA in the middle; Figure 9 yes Figure 8 A schematic diagram showing the state change of the limiting piece when it moves to engage with the fastener.

[0019] The parts referred to by the numbers in the above attached figures are as follows: 1. Busbar body; 11. Mounting hole; 2. Insulating buckle; 21. Opening; 3. Fastener; 4. Limiting protrusion; 5. Limiting piece; 6. Guide rod; 61. First rod segment; 62. Second rod segment; 7. Guide hole; 8. Elastic element; 9. Stop piece. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Example 1 A busbar to prevent screws from tipping over, according to Figure 3 As shown, it includes a busbar body 1, on which a mounting hole 11 is provided, and a fastener 3 is passed through the mounting hole 11. The end of the busbar body 1 is provided with a pair of insulating buckles 2 that can fasten the busbar and fix it to each other. The above is the prior art, and will not be described in detail in this embodiment.

[0022] The improvement in this embodiment is that the insulating buckle 2 is provided with a limiting structure to prevent the fastener 3 from completely disengaging from the mounting hole 11. Figure 3 As shown, the limiting structure includes a limiting protrusion 4 protruding on the inner wall of the insulating buckle 2, which is abutted by the fastener 3 when it is tilted. When the fastener 3 abuts against the limiting protrusion 4, it is partially located inside the mounting hole 11. The limiting protrusion 4 is protruding around and spaced apart from the mounting hole 11 on the inner wall of the insulating buckle 2.

[0023] When the fastener 3 is pushed upward, it will tilt and then press against the limiting protrusion 4. The limiting protrusion 4 can ensure that a part of the fastener 3 is always inside the mounting hole 11. When people can use tools to move the fastener 3, the part of the fastener 3 inside the mounting hole 11 can act as a guide and can be easily reset to the state of vertically passing through the mounting hole 11.

[0024] Example 2 Based on Example 1, this example further defines a busbar for preventing screws from tipping over. Figures 4-6 As shown, the limiting structure includes a limiting piece 5, which is movably disposed relative to the fastener 3. When the limiting piece 5 moves close to the fastener 3, it restricts the fastener 3 from disengaging from the mounting hole 11. A set of limiting pieces 5 is respectively provided on the two insulating buckles 2. A guide rod 6 is vertically protruding on the limiting piece 5. A guide hole 7 is provided on the insulating buckle 2 for the guide rod 6 to move vertically up and down. In this embodiment, when the limiting piece 5 and the fastener 3 are engaged, the distance between them is less than 1mm. After the guide rod 6 descends to engage with the fastener 3, it can maintain its current position. An elastic element 8 is provided between the limiting plate 5 and the inner wall of the insulating buckle 2 to drive the limiting plate 5 to move downward. A stop plate 9 is fixed at the end of the guide rod 6 away from the limiting plate 5. The guide rod 6 stops descending when the stop plate 9 abuts against the outer wall of the insulating buckle 2. The elastic element 8 includes a spring sleeved on the guide rod 6 and located between the limiting plate 5 and the inner wall of the insulating buckle 2.

[0025] When fastener 3 needs to be installed horizontally, the fastener 3 will be parallel to or tilted to the ground, which greatly increases the probability that the fastener 3 will slide out of the mounting hole 11. In this embodiment, the spring can drive the limiting piece 5 to descend, thereby preventing the fastener 3 from falling out of the mounting hole 11, so as to prevent the fastener 3 from tilting. This can effectively reduce the probability of the fastener 3 sliding out of the mounting hole 11 when it is installed horizontally.

[0026] Example 3 Based on Embodiment 2, this embodiment further defines a busbar for preventing screws from tipping over. Figures 7-9 As shown, the guide rod 6 includes a first rod segment 61 that is elastically interference-fitted with the guide hole 7 and a second rod segment 62 with a diameter smaller than that of the guide hole 7. The first rod segment 61 and the second rod segment 62 are distributed vertically.

[0027] In this embodiment, the second rod segment 62 serves as a guide to facilitate the insertion of the guide rod 6. When the guide rod 6 descends to the point where the first rod segment 61 contacts the guide hole 7, it stops descending due to the frictional force generated by the interference between the two. That is, when people fasten the insulating buckle 2, the limiting piece 5 will remain in the current position and will not interfere with the fastener 3, making the insulating buckle 2 easier to install. After the fastening is completed, the guide rod 6 can be pressed to drive the limiting piece 5 to continue to descend and limit the fastener 3. At this time, the second rod section 62 and the guide hole 7 are in an elastic interference state. The frictional force of the interference needs to be overcome in order to carry out the lifting and lowering activities, so that the fastener 3 has a certain resistance to the upward lifting force.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A busbar for preventing screws from tipping over, comprising a busbar body (1), a mounting hole (11) opened in the busbar body (1), a fastener (3) passing through the mounting hole (11), and a pair of insulating buckles (2) fastened to the busbar body (1) and having openings (21), characterized in that: The insulating buckle (2) is provided with a limiting structure for preventing the fastener (3) from completely disengaging from the mounting hole (11). The limiting structure includes a limiting protrusion (4) protruding on the inner wall of the insulating buckle (2) for the fastener (3) to abut against when tilted. When the fastener (3) abuts against the limiting protrusion (4), it is partially located inside the mounting hole (11).

2. The busbar for preventing screws from tipping over according to claim 1, characterized in that: The limiting protrusion (4) is arranged around the mounting hole (11) on the inner wall of the insulating buckle (2) and is spaced apart.

3. A busbar for preventing screws from tipping over according to claim 1, characterized in that: The limiting structure includes a limiting piece (5) that is movable relative to the fastener (3) and is used to limit the fastener (3) from disengaging from the mounting hole (11) after being moved close to the fastener.

4. A busbar for preventing screws from tipping over according to claim 3, characterized in that: A set of limiting plates (5) are respectively provided on the two insulating buckles (2).

5. A busbar for preventing screws from tipping over according to claim 3, characterized in that: The limiting piece (5) has a vertically protruding guide rod (6), and the insulating buckle (2) has a guide hole (7) for the guide rod (6) to move vertically up and down. After the guide rod (6) descends to cooperate with the fastener (3), it can maintain its current position.

6. A busbar for preventing screws from tipping over according to claim 5, characterized in that: An elastic element (8) is provided between the inner wall of the limiting piece (5) and the insulating buckle (2) to drive the limiting piece (5) to move downward, and a stop piece (9) is fixed at the end of the guide rod (6) away from the limiting piece (5).

7. A busbar for preventing screws from tipping over according to claim 6, characterized in that: The elastic element (8) includes a spring sleeved on the guide rod (6) and located between the inner wall of the limiting piece (5) and the insulating buckle (2).

8. A busbar for preventing screws from tipping over according to claim 5, characterized in that: The guide rod (6) includes a first rod segment (61) that is elastically interference-fitted with the guide hole (7) and a second rod segment (62) with a diameter smaller than that of the guide hole (7). The first rod segment (61) and the second rod segment (62) are distributed vertically.

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