Bus battery mounting anti-loose fixing structure

Abstract

The utility model relates to a trolley technology field discloses a bus trolley battery mounting anti -loose fixed knot structure, including the frame, the one side of frame is provided with a plurality of connecting bolts, the one side of frame is provided with the battery protection board, the one side of battery protection board away from frame is provided with a plurality of anti -loose gasket, the one side of anti -loose gasket away from battery protection board is provided with locking nut subassembly, the outer wall of connecting bolt is connected in the inner wall of locking nut subassembly, the outer wall of connecting bolt is provided with anti -loose subassembly. In the utility model, through frame and battery protection board provide support for battery, through the thread connection of connecting bolt and locking nut subassembly, through the function of anti -loose gasket and locking nut subassembly self -locking anti -loose, and through the cooperation of anti -loose subassembly, thereby solved the situation that traditional torque control assembly process exists clamping force attenuation, and then make long -time frequent vibration can lead to the problem of nut loosening.

Description

Technical Field

[0001] This utility model relates to the field of trolley technology, and in particular to a battery mounting anti-loosening and fixing structure for public trolleybuses. Background Technology

[0002] With the development of new energy transportation technologies, the safety and reliability of the power battery system of trolleybuses, as zero-emission and low-noise urban public transportation vehicles, has become a core focus of the industry.

[0003] As the energy core of buses and trolleybuses, batteries are usually installed at the bottom or side of the vehicle body. During operation, they need to withstand complex dynamic loads for a long time. Therefore, there is a problem of battery loosening due to vehicle vibration, which in turn leads to faults such as poor circuit contact and component wear.

[0004] Currently, most buses and trolleybuses use a combination of bolts and nuts as the main fixing method for their batteries. However, the traditional torque control assembly process suffers from clamping force attenuation, which can lead to the nuts loosening due to frequent vibration over a long period of time. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a battery mounting anti-loosening fixing structure for buses and trolleybuses, which aims to solve the problem of clamping force attenuation in traditional torque control assembly processes, which leads to nut loosening due to long-term frequent vibration.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a battery mounting anti-loosening fixing structure for a public bus, comprising a frame, a plurality of connecting bolts on one side of the frame, a battery protection plate on one side of the frame, a plurality of anti-loosening washers on the side of the battery protection plate away from the frame, a locking nut assembly on the side of the anti-loosening washers away from the battery protection plate, the outer wall of the connecting bolts being threadedly connected to the inner wall of the locking nut assembly, and the outer wall of the connecting bolts being provided with an anti-loosening component.

[0007] The above technical solution, through the dual anti-loosening design of the anti-loosening washer and the locking nut assembly, and through the cooperation of the anti-loosening components, solves the problem of clamping force attenuation in the traditional torque control assembly process, which leads to the nut loosening due to long-term frequent vibration.

[0008] Preferably, the locking nut assembly includes a nut head, the inner wall of which is threadedly connected to the outer wall of the connecting bolt. One side of the nut head and the side of the anti-loosening washer away from the battery protection plate are attached. The outer wall of the connecting bolt is evenly provided with a plurality of threaded clips, which are slidably connected to the inside of the nut head. A fastening bolt is attached to the side of the threaded clip away from the connecting bolt. The outer wall of the fastening bolt passes through the outer wall of the nut head, and the outer wall of the fastening bolt is threadedly connected to the inside of the nut head.

[0009] Preferably, the anti-loosening component includes a buckle, the outer wall of which passes through the outer wall of the connecting bolt away from the frame, and a pre-set gap is provided between one side of the buckle and the other side of the nut head.

[0010] Preferably, the anti-loosening component includes a support plate disposed between the anti-loosening washer and the nut head, and the two sides of the anti-loosening washer are respectively disposed inside the vehicle frame and the battery protection plate.

[0011] Preferably, the frame has a first groove on the side parallel and close to the connecting bolt, the battery protection plate has a second groove on the side parallel and close to the connecting bolt, and the two sides of the support plate are slidably connected inside the first and second grooves, respectively.

[0012] Preferably, a limiting rod is slidably connected inside the frame. The outer wall of one end of the limiting rod passes through the upper and lower sides of the support plate and the groove. A spring is fixedly connected to the other end of the limiting rod. The end of the spring away from the limiting rod is fixedly connected to the inside of the frame. A connecting rod is fixedly connected to the other end of the limiting rod. The outer wall of the connecting rod passes through both ends of the spring. The outer wall of one end of the connecting rod passes through the outer wall of the frame.

[0013] Preferably, the vehicle frame and battery protection plate are provided with protective plugs on the side parallel and close to the connecting bolts, with one side of the protective plug located inside the second groove and the other side of the protective plug located inside the first groove.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the battery is supported by the frame and the battery protection plate. The threaded connection of the connecting bolt and the locking nut assembly, the anti-loosening function of the anti-loosening washer and the locking nut assembly, and the cooperation of the anti-loosening components solve the problem of clamping force attenuation in the traditional torque control assembly process, which leads to the nut loosening due to long-term frequent vibration.

[0016] 2. In this utility model, the anti-loosening component is designed as a snap-fit, so that when the anti-loosening washer and the locking nut assembly fail to prevent loosening, the connecting bolt provides support for the snap-fit, thereby supporting the locking nut assembly and realizing the function of snap-fit ​​anti-loosening support.

[0017] 3. In this utility model, the anti-loosening component is designed as a support plate, so that the frame supports the support plate. The support plate is locked by the limiting rod, so that when the locking nut assembly fails to prevent loosening, the support plate can provide support for the anti-loosening washer, thereby realizing the function of the support plate in preventing loosening. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the lower side of the frame of a bus trolleybus battery mounting anti-loosening fixing structure proposed in this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a partial schematic diagram of the lower side of the frame of a bus battery mounting anti-loosening fixing structure proposed in this utility model;

[0021] Figure 4 This is a partial cross-sectional view of the frame structure of a battery mounting anti-loosening fixing structure for a public bus proposed in this utility model;

[0022] Figure 5 This is an exploded view of the locking nut assembly of a battery installation anti-loosening fixing structure for a public bus proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the exploded structure of the battery protection plate of the anti-loosening fixing structure for the battery installation of a public bus trolleybus proposed in this utility model.

[0024] Legend:

[0025] 1. Frame; 2. Battery protection board; 3. Locking nut assembly; 30. Nut head; 31. Threaded collet; 32. Fastening bolt; 4. Connecting bolt; 5. Anti-loosening washer; 6. Anti-loosening component; 7. Support plate; 8. Protective plug; 9. Connecting rod; 10. Buckle; 11. Groove one; 12. Limiting rod; 13. Spring; 14. Groove two. Detailed Implementation

[0026] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1:

[0028] Reference Figure 1 , Figure 2 and Figure 6 One embodiment of this utility model provides a battery mounting anti-loosening fixing structure for a bus, including a frame 1. A plurality of connecting bolts 4 are provided on one side of the frame 1. A battery protection plate 2 is provided on one side of the frame 1. A plurality of anti-loosening washers 5 are provided on the side of the battery protection plate 2 away from the frame 1. A locking nut assembly 3 is provided on the side of the anti-loosening washers 5 away from the battery protection plate 2. The outer wall of the connecting bolts 4 is threaded to the inner wall of the locking nut assembly 3. An anti-loosening component 6 is provided on the outer wall of the connecting bolts 4.

[0029] Specifically, the locking nut assembly 3 is a general term for various locking nuts. In this embodiment, however, one type of locking nut is used as the locking and anti-loosening structure. When installing and securing the battery of the bus, the battery is first embedded in the frame 1. Then, the battery protection plate 2 is covered, allowing the connecting bolt 4 to pass through the upper and lower sides of the battery protection plate 2. The anti-loosening washer 5 is placed on the connecting bolt 4, and the locking nut assembly 3 is tightened by the threaded connection between the locking nut assembly 3 and the connecting bolt 4, thus fixing the battery protection plate 2. Through the anti-loosening function of the anti-loosening washer 5 and the locking nut assembly 3 itself, the battery mounting structure achieves double anti-loosening. With the cooperation of the anti-loosening component 6, the anti-loosening and fixing function of the battery mounting structure is further improved, thereby solving the problem of clamping force attenuation in the traditional torque control assembly process, which leads to the nut loosening due to long-term and frequent vibration.

[0030] Reference Figure 2 and Figure 5 The locking nut assembly 3 includes a nut head 30, the inner wall of which is threadedly connected to the outer wall of the connecting bolt 4. One side of the nut head 30 and the side of the anti-loosening washer 5 away from the battery protection plate 2 are attached. Multiple threaded clips 31 are evenly arranged on the outer wall of the connecting bolt 4. The threaded clips 31 are slidably connected to the inside of the nut head 30. A fastening bolt 32 is attached to the side of the threaded clip 31 away from the connecting bolt 4. The outer wall of the fastening bolt 32 passes through the outer wall of the nut head 30 and is threadedly connected to the inside of the nut head 30.

[0031] Specifically, the end of the threaded collet 31 that is in contact with the connecting bolt 4 is provided with a thread that matches the connecting bolt 4. When the nut head 30 is tightened to the preset torque, the initial fixing of the battery protection plate 2 is completed. At this time, through the threaded connection between the nut head 30 and the fastening bolt 32, the fastening bolt 32 is driven to rotate using an Allen wrench. Through the sliding connection between the threaded collet 31 and the nut head 30, the threaded collet 31 is driven to press against the outer wall of the connecting bolt 4 and apply a certain force, thereby realizing the anti-loosening and locking function of the locking nut assembly 3.

[0032] Reference Figure 3 The anti-loosening component 6 includes a buckle 10, the outer wall of which passes through the outer wall of the connecting bolt 4 away from the frame 1, and a pre-set gap between one side of the buckle 10 and the other side of the nut head 30.

[0033] Specifically, after the locking nut assembly 3 is locked in place, one end of the buckle 10 is passed through the outer wall of the connecting bolt 4. When the locking function of the locking washer 5 and the locking nut assembly 3 fails, the buckle 10 can support the locking nut assembly 3 through the interference between the outer wall of the buckle 10 and the locking nut assembly 3, thereby further improving the function of locking the electric vehicle battery installation structure.

[0034] Example 2:

[0035] Reference Figure 2 and Figure 4 The present invention also provides an embodiment in which the anti-loosening component 6 includes a support plate 7, which is disposed between the anti-loosening washer 5 and the nut head 30, and the two sides of the anti-loosening washer 5 are respectively disposed inside the frame 1 and the battery protection plate 2.

[0036] Specifically, in this embodiment, the support plate 7 is located between the nut head 30 and the anti-loosening washer 5. After the anti-loosening washer 5 is put on the connecting bolt 4, the support plate 7 is put on the connecting bolt 4, so that the two sides of the support plate 7 are respectively inserted into the interior of the frame 1 and the battery protection plate 2. When the anti-loosening of the locking nut assembly 3 fails, the frame 1 provides support for the support plate 7, and in turn provides support for the anti-loosening washer 5, thereby further improving the anti-loosening and fixing function of the electric vehicle battery installation structure.

[0037] Reference Figure 4 The frame 1 has a groove 11 on the side parallel and close to the connecting bolt 4, and the battery protection plate 2 has a groove 14 on the side parallel and close to the connecting bolt 4. The two sides of the support plate 7 are slidably connected inside the groove 11 and the groove 14 respectively.

[0038] Specifically, when installing the support plate 7, first put the support plate 7 on the connecting bolt 4, rotate the support plate 7 so that the two sides of the support plate 7 slide into the interior of the first groove 11 and the second groove 14 respectively, thereby making the frame 1 and the battery protection plate 2 support the support plate 7, thus realizing the function of the support plate 7 in supporting and preventing the loosening of the anti-loosening gasket 5.

[0039] Reference Figure 4 The frame 1 has a sliding connection of a limiting rod 12 inside. The outer wall of one end of the limiting rod 12 passes through the upper and lower sides of the support plate 7 and the groove 11. The other end of the limiting rod 12 is fixedly connected to a spring 13. The end of the spring 13 away from the limiting rod 12 is fixedly connected to the inside of the frame 1. The other end of the limiting rod 12 is fixedly connected to a connecting rod 9. The outer wall of the connecting rod 9 passes through both ends of the spring 13. The outer wall of one end of the connecting rod 9 passes through the outer wall of the frame 1.

[0040] Specifically, when the support plate 7 slides into the groove 11, by applying force to the connecting rod 9 by hand, the limiting rod 12 moves vertically and compresses the spring 13, causing the limiting rod 12 to move into the interior of the frame 1. At this time, the support plate 7 is rotated so that the outer wall of the support plate 7 fits against the inner wall of the groove 11. The connecting rod 9 is released, and under the action of the spring 13, the limiting rod 12 moves downward, passing through the upper and lower sides of the support plate 7, thereby realizing the function of locking the support plate 7.

[0041] Reference Figure 2 and Figure 4 The frame 1 and the battery protection plate 2 are both provided with protective plugs 8 on the side parallel and close to the connecting bolt 4. One side of the protective plug 8 is located inside the second groove 14, and the other side of the protective plug 8 is located inside the first groove 11.

[0042] Specifically, after the support plate 7 is locked, the protective plug 8 can be inserted into the first groove 11 and the second groove 14 to prevent external impurities from entering the first groove 11 and the second groove 14 and causing disassembly difficulties, thereby realizing the protective function of the protective plug 8.

[0043] Working principle: When installing and securing the battery of the bus, first embed the battery into the frame 1, then cover the battery protection plate 2, so that the connecting bolt 4 passes through the battery protection plate 2, and put the anti-loosening washer 5 on the connecting bolt 4. If the anti-loosening component 6 is composed of a support plate 7 or other structures, put the support plate 7 on the connecting bolt 4, rotate the support plate 7 so that the two sides of the support plate 7 slide into the interior of the first groove 11 and the second groove 14 respectively, so that the support plate 7 supports the anti-loosening washer 5, and the limiting rod 12 passes through the upper and lower sides of the support plate 7 to lock the support plate 7, thereby realizing the anti-loosening support function of the support plate 7.

[0044] Connect the nut head 30 to the thread of the connecting bolt 4 according to the preset torque, rotate the fastening bolt 32, thereby driving the threaded chuck 31 to abut against the outer wall of the connecting bolt 4 and apply a certain force to complete the self-locking and anti-loosening of the locking nut assembly 3.

[0045] If the anti-loosening component 6 is a snap fastener 10, one end of the snap fastener 10 is passed through the outer wall of the connecting bolt 4, so that the snap fastener 10 supports the locking nut assembly 3, thereby realizing the anti-loosening support function of the snap fastener 10. This solves the problem that clamping force attenuation exists in the traditional torque control assembly process, which leads to the nut loosening due to long-term frequent vibration.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery mounting anti-loosening fixing structure for a public bus, comprising a frame (1), characterized in that: A plurality of connecting bolts (4) are provided on one side of the frame (1), a battery protection plate (2) is provided on one side of the frame (1), a plurality of anti-loosening washers (5) are provided on the side of the battery protection plate (2) away from the frame (1), a locking nut assembly (3) is provided on the side of the anti-loosening washers (5) away from the battery protection plate (2), the outer wall of the connecting bolt (4) is threaded to the inner wall of the locking nut assembly (3), and an anti-loosening component (6) is provided on the outer wall of the connecting bolt (4).

2. The anti-loosening fixing structure for bus battery installation according to claim 1, characterized in that: The locking nut assembly (3) includes a nut head (30), the inner wall of which is threadedly connected to the outer wall of the connecting bolt (4). One side of the nut head (30) and the side of the anti-loosening washer (5) away from the battery protection plate (2) are attached. Multiple threaded clips (31) are evenly arranged on the outer wall of the connecting bolt (4). The threaded clips (31) are slidably connected to the inside of the nut head (30). A fastening bolt (32) is attached to the side of the threaded clips (31) away from the connecting bolt (4). The outer wall of the fastening bolt (32) passes through the outer wall of the nut head (30). The outer wall of the fastening bolt (32) is threadedly connected to the inside of the nut head (30).

3. The anti-loosening fixing structure for bus battery installation according to claim 1, characterized in that: The anti-loosening component (6) includes a buckle (10), the outer wall of which passes through the outer wall of the connecting bolt (4) away from the frame (1), and there is a pre-set gap between one side of the buckle (10) and the other side of the nut head (30).

4. The anti-loosening fixing structure for bus battery installation according to claim 1, characterized in that: The anti-loosening component (6) includes a support plate (7), which is disposed between the anti-loosening washer (5) and the nut head (30). The two sides of the anti-loosening washer (5) are respectively disposed inside the frame (1) and the battery protection plate (2).

5. The anti-loosening fixing structure for bus battery installation according to claim 4, characterized in that: The frame (1) has a groove one (11) on the side parallel and close to the connecting bolt (4), and the battery protection plate (2) has a groove two (14) on the side parallel and close to the connecting bolt (4). The two sides of the support plate (7) are slidably connected inside the groove one (11) and the groove two (14).

6. The anti-loosening fixing structure for bus battery installation according to claim 1, characterized in that: The frame (1) is internally connected to a limiting rod (12). One end of the limiting rod (12) passes through the upper and lower sides of the support plate (7) and the groove (11). The other end of the limiting rod (12) is fixedly connected to a spring (13). The end of the spring (13) away from the limiting rod (12) is fixedly connected to the inside of the frame (1). The other end of the limiting rod (12) is fixedly connected to a connecting rod (9). The outer wall of the connecting rod (9) passes through both ends of the spring (13). One end of the connecting rod (9) passes through the outer wall of the frame (1).

7. The anti-loosening fixing structure for bus battery installation according to claim 1, characterized in that: The frame (1) and battery protection plate (2) are provided with protective plugs (8) on the side parallel and close to the connecting bolt (4). One side of one of the protective plugs (8) is located inside the second groove (14), and the other side of the protective plug (8) is located inside the first groove (11).

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