Split type electric vehicle frame connecting mechanism

The design of the slot and block positioning components and the rainproof components solves the problem of electric vehicle frames rusting in rainy weather, achieving convenient connection and rust prevention.

CN224589302UActive Publication Date: 2026-08-04TIANJIN ALD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN ALD TECH CO LTD
Filing Date
2025-07-10
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing electric vehicle frame connection structure is prone to rusting in rainy weather, which affects its service life, and it is also inconvenient to disassemble and assemble.

Method used

The system uses a combination of slots and blocks to prevent the front frame from rotating, and a rain shield reduces water contact to prevent rust.

Benefits of technology

It facilitates the connection between the front and rear frames, prevents rust, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of split type electric vehicle frame connecting mechanism, it is related to electric vehicle frame technical field, comprising: front frame, front frame side is equipped with rear frame, and rear frame is fixedly installed with battery, and upper rain cover is equipped between front frame and rear frame, and the bottom of upper rain cover is equipped with lower rain cover.This kind of electric vehicle frame connecting mechanism is set by in-place assembly, can use the cooperation of clamping groove and clamping block, make front frame expand to correct position, temporarily limit front frame, to prevent the rotation of front frame when bolt and nut are used to connect front frame and rear frame, so as to facilitate user to connect front frame and rear frame, and through the setting of rain cover assembly, the contact of rain and front frame and rear frame can be reduced, to prevent rust.
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Description

Technical Field

[0001] This utility model relates to the field of electric vehicle frame technology, specifically a split-type electric vehicle frame connection mechanism. Background Technology

[0002] A modular electric vehicle frame connection mechanism refers to a specially designed mechanical connection device used to achieve modular design of electric vehicles, specifically enabling the frame to be divided into two or more parts for ease of transportation, storage, or maintenance. This connection mechanism allows users to relatively easily disassemble and reassemble different parts of the electric vehicle while ensuring sufficient structural strength and safety during use. Existing connection structures mostly rely on bolts and nuts for connection and fixation. These bolts and nuts are often exposed, making them susceptible to rusting from rainwater, thus affecting the lifespan of the connection mechanism. Utility Model Content

[0003] This utility model aims to overcome the shortcomings of the prior art by providing a split electric vehicle frame connection mechanism. To solve the above problems, the positioning component allows the front frame to be temporarily limited after it is unfolded to the correct position by using the cooperation of the slot and the block. This prevents the front frame from rotating when the front and rear frames are connected with bolts and nuts, thus facilitating the connection between the front and rear frames. Furthermore, the rainproof component reduces the contact between rainwater and the front and rear frames, preventing rust.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a split-type electric vehicle frame connection mechanism, comprising: a front frame, a rear frame on one side of the front frame, a battery fixedly mounted on the rear frame, an upper rain cover between the front frame and the rear frame, a lower rain cover at the bottom of the upper rain cover, a rain-shielding assembly disposed between the front frame and the rear frame, the rain-shielding assembly comprising: sealing rubber a, sealing rubber strip a, a through rod, a threaded cap, sealing rubber b and sealing rubber strip b, and a positioning assembly disposed inside the rear frame, the positioning assembly comprising: a rotating block, a slot, a locking block, a spring and a pull rod.

[0005] Preferably, the upper rain cover has two sealing rubber pieces a fixedly connected inside, the bottom of the upper rain cover has two sealing rubber strips a fixedly connected, the bottom of the upper rain cover has multiple through rods fixedly connected, the bottom and top of the lower rain cover have two sealing rubber strips b fixedly connected, and the interior of the lower rain cover has two sealing rubber pieces b fixedly connected.

[0006] Preferably, the bottom ends of the multiple through rods are provided with external threads, and the bottom ends of the multiple through rods all pass through the sealing rubber strip a, the sealing rubber strip b and the upper rain cover, and are threadedly connected with threaded caps.

[0007] Preferably, a rotating block is fixedly connected to one side of the front frame, and a through hole is provided on the top of the rotating block. Two fixing plates are fixedly connected to one side of the rear frame, and threaded holes are provided on the top of both fixing plates. A rotating shaft bolt is provided between the two fixing plates. Slots are provided on both sides of the rotating block. A spring cavity is provided inside the rear frame, and a pull rod is provided inside the spring cavity, with one end of the pull rod extending out of one side of the rear frame.

[0008] Preferably, the rotating shaft bolt is located inside the through hole, and both ends of the rotating shaft bolt are threaded with limit nuts.

[0009] Preferably, a spring is sleeved on the outside of the pull rod, a limiting plate is fixedly connected to one end of the pull rod, a locking block is fixedly connected to one end of the limiting plate, and the locking block is engaged with the locking groove.

[0010] Preferably, a docking plate a is fixedly connected to one side of the front frame, a docking plate b is fixedly connected to one side of the rear frame, a butterfly knob is provided on one side of the rear frame, a screw is fixedly connected to one end of the butterfly knob, one end of the screw passes through the docking plate a and the docking plate b, and is threaded with a butterfly nut.

[0011] This utility model provides a split-type electric vehicle frame connection mechanism, which has the following advantages:

[0012] The advantage of this utility model is that, through the setting of the positioning component, the cooperation of the slot and the block can temporarily limit the front frame after it is unfolded to the correct position, so as to prevent the rotation of the front frame when the front frame and the rear frame are connected by bolts and nuts, thereby making it easier for the user to connect the front frame and the rear frame.

[0013] Secondly, the rain protection components reduce the contact between rainwater and the front and rear frames, preventing rust and extending service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front frame structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 3 This is a cross-sectional view of the spring cavity structure of this utility model.

[0017] Figure 4This is a side view of the rotating block structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the fixing plate structure of this utility model.

[0019] Figure 6 This is a schematic diagram of the rotating block structure of this utility model.

[0020] Figure 7 This is a schematic diagram of the butterfly-shaped knob structure of this utility model.

[0021] Figure 8 This is a schematic diagram of the rotating shaft bolt structure of this utility model.

[0022] Figure 9 This is a schematic diagram of the sealing rubber a structure of this utility model.

[0023] Figure 10 This is a schematic diagram of the upper rain cover structure of this utility model.

[0024] Figure 11 This is a schematic diagram of the lower rain cover structure of this utility model.

[0025] Figure 12 For the present utility model Figure 3 Enlarged view of point A.

[0026] Figure 1-12 In the middle: 1. Front frame; 101. Connecting plate a; 102. Connecting plate b; 2. Rear frame; 201. Battery; 202. Spring cavity; 3. Upper rain cover; 301. Sealing rubber a; 302. Sealing rubber strip a; 303. Through rod; 304. Threaded cap; 4. Lower rain cover; 401. Sealing rubber b; 402. Sealing rubber strip b; 5. Pull rod; 501. Spring; 502. Limiting plate; 503. Locking block; 6. Fixing plate; 601. Rotating block; 602. Slot; 603. Threaded hole; 604. Through hole; 7. Butterfly knob; 701. Screw; 702. Butterfly nut; 8. Rotary shaft bolt; 801. Limiting nut. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0029] This application provides a split-type electric vehicle frame connection mechanism. This mechanism, through the placement of positioning components, utilizes the cooperation of slots and blocks to temporarily limit the front frame after it has been unfolded to the correct position. This prevents rotation of the front frame when connecting it to the rear frame using bolts and nuts, thus facilitating connection between the front and rear frames. Furthermore, the inclusion of a rain-shielding component reduces rainwater contact with the front and rear frames, preventing rust. The following provides a detailed description of this split-type electric vehicle frame connection mechanism. It should be noted that the order of description in the following embodiments is not intended to limit the preferred order of the embodiments.

[0030] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] Please see Figure 1-12 In this embodiment, a split-type electric vehicle frame connection mechanism is provided, including: a front frame 1, a rear frame 2 on one side of the front frame 1, a battery 201 fixedly installed on the rear frame 2, an upper rain cover 3 between the front frame 1 and the rear frame 2, and a lower rain cover 4 at the bottom of the upper rain cover 3; a rain cover assembly disposed between the front frame 1 and the rear frame 2, the rain cover assembly including: sealing rubber a301, sealing rubber strip a302, through rod 303, threaded cap 304, sealing rubber b401 and sealing rubber strip b402; and a positioning assembly disposed inside the rear frame 2, the positioning assembly including: rotating block 601, slot 602, locking block 503, spring 501 and pull rod 5.

[0033] The positioning component allows the slot 602 and the block 503 to work together to temporarily limit the front frame after it is unfolded to the correct position. This prevents the front frame 1 from rotating when the front frame 1 and the rear frame 2 are connected using the wing nut 702 and the wing knob 7, thus facilitating the connection between the front frame 1 and the rear frame 2.

[0034] Secondly, the rain-proof components reduce the contact between rainwater and the front frame 1 and rear frame 2, preventing rust and extending service life.

[0035] Example 1

[0036] Based on Embodiment 1, two sealing rubber pieces a301 are fixedly connected inside the upper rain cover 3, two sealing rubber strips a302 are fixedly connected to the bottom of the upper rain cover 3, and multiple through rods 303 are fixedly connected to the bottom of the upper rain cover 3. Two sealing rubber strips b402 are fixedly connected to the top and bottom of the lower rain cover 4, and two sealing rubber pieces b401 are fixedly connected inside the lower rain cover 4. The bottom ends of the multiple through rods 303 are provided with external threads, and the bottom ends of the multiple through rods 303 all pass through the sealing rubber strips a302, b402 and the upper rain cover 3, and are threadedly connected with threaded caps 304.

[0037] In use, place the lower rain cover 4 below the mating plates a101 and b102, and place the upper rain cover 3 on top of the lower rain cover 4. Then, pass the multiple through rods 303 at the bottom of the upper rain cover 3 through the sealing rubber strips a302, b402, and the upper rain cover 3, respectively, so that the through rods 303 protrude from the bottom of the upper rain cover 3. Then, screw the threaded caps 304 on the bottom of the through rods 303 to limit the through rods 303, thereby fixing the upper rain cover 3 to the lower rain cover 4. At the top, sealing rubber a301 and sealing rubber b401 will contact the surfaces of the front frame 1 and the rear frame 2 and be squeezed, thereby preventing rainwater from seeping in through the gaps between the front frame 1 and the rear frame 2 and the upper rain cover 3 and the lower rain cover 4 respectively. The setting of sealing rubber strip b402 and sealing rubber strip a302 can prevent rainwater from seeping in through the gaps between the upper rain cover 3 and the lower rain cover 4, thereby avoiding rainwater contact with the connecting parts between the front frame 1 and the rear frame 2.

[0038] Example 2

[0039] Based on Embodiment 1, a rotating block 601 is fixedly connected to one side of the front frame 1, and a through hole 604 is provided on the top of the rotating block 601. Two fixing plates 6 are fixedly connected to one side of the rear frame 2, and threaded holes 603 are provided on the top of both fixing plates 6. A pivot bolt 8 is provided between the two fixing plates 6. A slot 602 is provided on both sides of the rotating block 601. A spring cavity 202 is provided inside the rear frame 2, and a pull rod 5 is provided inside the spring cavity 202, with one end of the pull rod 5 extending out of one side of the rear frame 2. The pivot bolt 8 is located inside the through hole 604, and both ends of the pivot bolt 8 are... A threaded connection includes a limiting nut 801; a spring 501 is sleeved on the outside of the pull rod 5, and a limiting plate 502 is fixedly connected to one end of the pull rod 5. A locking block 503 is fixedly connected to one end of the limiting plate 502, and the locking block 503 engages with the locking groove 602; a docking plate a101 is fixedly connected to one side of the front frame 1, and a docking plate b102 is fixedly connected to one side of the rear frame 2. A butterfly knob 7 is provided on one side of the rear frame 2, and a screw 701 is fixedly connected to one end of the butterfly knob 7. One end of the screw 701 passes through the docking plate a101 and the docking plate b102, and is threadedly connected to the butterfly nut 702.

[0040] When it is necessary to fold the front frame 1 and the rear frame 2, turn the wing knob 7 and the wing nut 702 to remove the screw 701 and the wing nut 702, disconnecting the connecting plate a101 from the rear frame 2. Then pull the lever 5 to cause the limiting plate 502 to compress the spring 501, pulling one end of the limiting plate 502 out of the slot 602, thereby releasing the limiting of the rotating block 601. Then rotate the front frame 1 to make the rotating block 601 and the front frame 1 rotate around each other. Rotating the shaft bolt 8 moves the slot 602 out of one end of the block 503 and releases the pull rod 5, releasing the spring 501. This causes one end of the block 503 to abut against the outer wall of the rotating block 601. When the front frame 1 is folded to one side of the rear frame 2, the spring 501 continues to push the block 503 into the slot 602 on the other side of the rotating block 601 to limit the rotation block 601. Then, the front frame 1 and the rear frame 2 can be tied together with rope or tape.

[0041] Furthermore, when it is necessary to unfold the front frame 1, the lever 5 can be pulled again to cause the limiting plate 502 to compress the spring 501, pulling one end of the limiting plate 502 out of the slot 602, thereby releasing the limiting of the rotating block 601. Then, the front frame 1 can be rotated until the docking plate a101 and the docking plate b102 are aligned. At this time, the locking block 503, driven by the spring 501, is locked into the slot 602 near the inside of the front frame 1 of the rotating block 601, thereby preventing the rotation of the rotating block 601 and the front frame 1. Then, the docking plate a101 and the docking plate b102 can be fixed together by the butterfly knob 7, the screw 701 and the butterfly nut 702.

[0042] When it is necessary to separate the front frame 1 and the rear frame 2 for maintenance or transportation, the maintenance personnel tighten the limit nut 801 and the pivot bolt 8 to remove the limit nut 801 and the pivot bolt 8, thereby releasing the limit on the rotating block 601. Then, they tighten the butterfly knob 7 and the butterfly nut 702 to remove the screw 701 and the butterfly nut 702, thereby disconnecting the docking plate a101 from the rear frame 2 and thus separating the front frame 1 and the rear frame 2.

[0043] The control program involved in this utility model can be implemented by those skilled in the art based on the same or similar principles in the prior art, and this part is not the innovation of this utility model.

[0044] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0045] The above provides a detailed description of a split electric vehicle frame connection mechanism provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A split-type electric vehicle frame connection mechanism, characterized in that, include: A front frame (1) is provided on one side of the front frame (1) and a rear frame (2) is provided on one side of the rear frame (2) and a battery (201) is fixedly installed on the rear frame (2). An upper rain cover (3) is provided between the front frame (1) and the rear frame (2) and a lower rain cover (4) is provided at the bottom of the upper rain cover (3). A rain shelter assembly disposed between the front frame (1) and the rear frame (2), the rain shelter assembly comprising: sealing rubber a (301), sealing rubber strip a (302), a through rod (303), a threaded cap (304), sealing rubber b (401), and sealing rubber strip b (402); and The positioning component is located inside the rear frame (2), and the positioning component includes: a rotating block (601), a slot (602), a locking block (503), a spring (501), and a pull rod (5).

2. The split-type electric vehicle frame connection mechanism according to claim 1, characterized in that, The upper rain cover (3) has two sealing rubber pieces a (301) fixedly connected inside. The upper rain cover (3) has two sealing rubber strips a (302) fixedly connected at the bottom. The upper rain cover (3) has multiple through rods (303) fixedly connected at the bottom. The lower rain cover (4) has two sealing rubber strips b (402) fixedly connected at the bottom and top. The lower rain cover (4) has two sealing rubber pieces b (401) fixedly connected inside.

3. The split-type electric vehicle frame connection mechanism according to claim 2, characterized in that, The bottom ends of the multiple through rods (303) are provided with external threads, and the bottom ends of the multiple through rods (303) all pass through the sealing rubber strip a (302), the sealing rubber strip b (402) and the upper rain cover (3), and are threadedly connected with threaded caps (304).

4. The split-type electric vehicle frame connection mechanism according to claim 1, characterized in that, A rotating block (601) is fixedly connected to one side of the front frame (1). A through hole (604) is provided on the top of the rotating block (601). Two fixing plates (6) are fixedly connected to one side of the rear frame (2). Threaded holes (603) are provided on the top of both fixing plates (6). A rotating shaft bolt (8) is provided between the two fixing plates (6). Slots (602) are provided on both sides of the rotating block (601). A spring cavity (202) is provided inside the rear frame (2). A pull rod (5) is provided inside the spring cavity (202), and one end of the pull rod (5) extends out of one side of the rear frame (2).

5. The split-type electric vehicle frame connection mechanism according to claim 4, characterized in that, The rotating shaft bolt (8) is located inside the through hole (604), and both ends of the rotating shaft bolt (8) are threaded with limit nuts (801).

6. The split-type electric vehicle frame connection mechanism according to claim 4, characterized in that, A spring (501) is sleeved on the outside of the pull rod (5). A limiting plate (502) is fixedly connected to one end of the pull rod (5). A locking block (503) is fixedly connected to one end of the limiting plate (502), and the locking block (503) is engaged with the locking groove (602).

7. The split-type electric vehicle frame connection mechanism according to claim 1, characterized in that, A docking plate a (101) is fixedly connected to one side of the front frame (1), and a docking plate b (102) is fixedly connected to one side of the rear frame (2). A butterfly knob (7) is provided on one side of the rear frame (2). A screw (701) is fixedly connected to one end of the butterfly knob (7). One end of the screw (701) passes through the docking plate a (101) and the docking plate b (102) and is threaded with a butterfly nut (702).