Electric vehicle frame connecting beam easy to install
By designing detachable fasteners and hinges on the connecting beams of the electric vehicle frame, the problem of incomplete welding when welding the connecting beams to the side beams was solved, achieving a stable and reliable connection and improving the overall rigidity of the frame.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU JIASHUN VEHICLE PARTS CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-15
AI Technical Summary
The existing electric vehicle frame connecting beams are prone to incomplete welding when welded to the side beams, which affects the stability and rigidity of the frame.
The design features a detachable connecting beam, which is detachably connected to the side beam of the frame via fasteners. The length and angle can be adjusted using hinges and threaded cylinders to ensure a perfect fit between the connecting beam and the side beam.
This avoids the problem of incomplete welding, improves the installation stability and rigidity of the frame, and enhances the practicality of the device.
Smart Images

Figure CN224241178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric vehicle frame technology, and in particular to an easy-to-install electric vehicle frame connecting beam. Background Technology
[0002] The electric vehicle frame mainly consists of a head tube, main beam, side beams, center plate, crossbeams, and other mounting brackets. The head tube of the frame is usually made of seamless steel pipe, while the main beam, side beams, and crossbeams are usually made of welded steel pipe. To accommodate the installation of the single support, battery, plastic parts, and wiring harness, connecting beams need to be welded to the corresponding side beams to stabilize the lateral rigidity of the electric vehicle frame.
[0003] Existing connecting beams and side beams are usually fixed by welding. Since the two adjacent side beams are not parallel, the ends of the connecting beams need to be beveled. However, if the beveled ends do not perfectly match the side beams, it will lead to incomplete welding during the welding process, which will compromise the stability of the frame. Therefore, we propose a connecting beam that is installed with the side beams. Utility Model Content
[0004] The purpose of this utility model is to provide an easy-to-install electric vehicle frame connecting beam to solve the problem mentioned in the background art that existing connecting beams are prone to incomplete welding during the welding process with the side beams.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-install electric vehicle frame connecting beam, including a frame body and frame side beams in the frame body, a detachable connecting beam between two adjacent frame side beams, the connecting beam including two fasteners adapted to the frame side beams, both fasteners being detachably connected to the frame side beams, a hinge on the opposite side of the two fasteners, and a beam and an adjustable threaded cylinder on the opposite side of the two hinges respectively.
[0006] Preferably, the fastener includes two semi-circular sleeves that match the side beams of the vehicle frame, and the two semi-circular sleeves are detachably connected.
[0007] Preferably, each of the two crescent-shaped sleeves has a fixed plate fixedly connected to its opposite side, and a fastening bolt is provided between two adjacent fixed plates.
[0008] Preferably, the hinge includes a hinge plate one that is fixedly connected to the beam and the opposite end of the threaded cylinder, and a hinge plate two is provided above the hinge plate one. The hinge plate one and the hinge plate two are rotatably connected by a pin.
[0009] Preferably, one end of the second hinge plate is slidably connected to the outer wall of the crescent sleeve. The outer wall of the crescent sleeve is provided with a guide groove, and the two inner walls of the guide groove are provided with slots. A slider is slidably connected inside the slots, and the outer wall of the slider is fixedly connected to the outer wall of the second hinge plate.
[0010] Preferably, one end of the beam is fixedly connected to a lead screw, the inner wall of the threaded cylinder is provided with a threaded groove that matches the lead screw, and one end of the lead screw is threadedly connected to the inner cavity of the threaded cylinder.
[0011] The technical effects and advantages of this utility model are as follows: In order to avoid the situation of incomplete welding when welding the connecting beam and the side beam of the frame, this utility model sets fasteners at both ends of the connecting beam and fixes it to the side beam of the frame through the fasteners, so as to achieve the effect of welding fixation. At the same time, the length of the connecting beam can be adjusted according to the width of the side beam of the frame at different positions, which increases the practicality of the device. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is a schematic diagram of the frame connecting beam structure of this utility model.
[0014] Figure 3 This is a schematic diagram of the frame connecting beam of this utility model.
[0015] In the diagram: 1. Frame body; 11. Frame side beam; 2. Connecting beam; 21. Half-moon sleeve; 211. Fixing plate; 212. Fastening bolt; 213. Guide groove; 214. Slot; 215. Slider; 22. Hinge; 221. Hinge plate one; 222. Pin; 223. Hinge plate two; 23. Beam; 231. Lead screw; 24. Threaded cylinder. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] This utility model provides, for example Figure 1-3The diagram illustrates an easy-to-install electric vehicle frame connecting beam, comprising a frame body 1 and frame side beams 11 within the frame body 1. A detachable connecting beam 2 is provided between two adjacent frame side beams 11. The connecting beam 2 includes two fasteners adapted to the frame side beams 11, both of which are detachably connected to the frame side beams 11. Hinges 22 are provided on opposite sides of the two fasteners, and beam bodies 23 and threaded cylinders 24 with adjustable distances from the beam bodies 23 are respectively provided on opposite sides of the two hinges 22. In existing technology, the electric vehicle frame side beams 11 and the connecting beam 2 are welded together. Because adjacent frame side beams 11 are not fixed in parallel, it is necessary to weld them together at the ends of the connecting beam 2. If the cut ends do not perfectly match the side beam 11 of the frame, it will lead to incomplete welding during the welding process, which will affect the overall rigidity and strength of the electric vehicle frame. This utility model proposes a connecting beam 2 for the electric vehicle frame. By setting fasteners at both ends of the connecting beam 2, the fasteners can be fixed to the side beam 11 of the frame, thus achieving the effect of welding fixation. At the same time, the length between the beam body 23 and the threaded cylinder 24 can be adjusted, so that it can be installed at different positions of adjacent side beams 11. In addition, both ends of the beam body 23 and the threaded cylinder 24 are provided with hinges 22, which allows the fasteners and the beam body 23 to rotate at an angle, so that the fasteners can be perfectly fitted and fixed to the side beam 11 of the frame.
[0018] like Figure 2 As shown, the fastener includes two crescent-shaped sleeves 21 that match the side beams 11 of the frame, and the two crescent-shaped sleeves 21 are detachably connected.
[0019] like Figure 3 As shown, each of the two crescent-shaped sleeves 21 has a fixed plate 211 fixedly connected to its opposite side, and a fastening bolt 212 is provided between the two adjacent fixed plates 211. During installation, the inner wall of the crescent-shaped sleeve 21 is first pressed tightly against the outer wall of the frame side beam 11, and then the fastening bolt 212 is tightened to fix the fastener to the frame side beam 11.
[0020] like Figure 2 As shown, the hinge 22 includes a hinge plate 221 fixedly connected to the opposite end of the beam 23 and the threaded cylinder 24. A hinge plate 223 is provided above the hinge plate 221. A pin 222 is rotatably connected between the hinge plate 221 and the hinge plate 223. The hinge plate 221 and the hinge plate 223 can rotate through the pin 222. Since the two adjacent frame side beams 11 are not fixed in parallel, the angle of the crescent sleeve 21 can be adjusted through the hinge plate 223 to make the inner wall of the crescent sleeve 21 fit with the outer wall of the frame side beam 11.
[0021] like Figure 3As shown, one end of the second hinge plate 223 is slidably connected to the outer wall of the crescent sleeve 21. The outer wall of the crescent sleeve 21 has a guide groove 213, and the two inner walls of the guide groove 213 have slots 214. A slider 215 is slidably connected inside the slots 214. The outer wall of the slider 215 is fixedly connected to the outer wall of the second hinge plate 223. By setting the slider 215 inside the slots 214, the crescent sleeve 21 and the second hinge plate 223 can rotate. This is mainly to prevent the fixing plate 211 from blocking the wire routing when the connecting beam 2 is installed with internal wiring. It is worth mentioning that the second hinge plate 223 and the crescent sleeve 21 can also be fixedly connected, mainly to make corresponding changes when installing wiring for different electric vehicle frames.
[0022] like Figure 3 As shown, a lead screw 231 is fixedly connected to one end of the beam 23. The inner wall of the threaded cylinder 24 is provided with a threaded groove that matches the lead screw 231. One end of the lead screw 231 is threadedly connected to the inner cavity of the threaded cylinder 24. When the connecting beam 2 is installed at different positions of the side beam 11 of the frame, the length can be adjusted by turning the threaded cylinder 24.
[0023] 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. An easy-to-install electric vehicle frame connecting beam, comprising a frame body (1) and a frame side beam (11) in the frame body (1), characterized in that: A detachable connecting beam (2) is provided between two adjacent frame side beams (11). The connecting beam (2) includes two fasteners adapted to the frame side beams (11). Both fasteners are detachably connected to the frame side beams (11). A hinge (22) is provided on the opposite side of the two fasteners. A beam body (23) and a threaded cylinder (24) with an adjustable distance from the beam body (23) are respectively provided on the opposite side of the two hinges (22).
2. The easy-to-install electric vehicle frame connecting beam according to claim 1, characterized in that: The fastener includes two crescent-shaped sleeves (21) that match the side beams (11) of the frame, and the two crescent-shaped sleeves (21) are detachably connected to each other.
3. The easy-to-install electric vehicle frame connecting beam according to claim 2, characterized in that: Each of the two crescent-shaped sleeves (21) has a fixed plate (211) fixedly connected to its opposite side, and a fastening bolt (212) is provided between two adjacent fixed plates (211).
4. The easy-to-install electric vehicle frame connecting beam according to claim 1, characterized in that: The hinge (22) includes a hinge plate (221) fixedly connected to the opposite end of the beam (23) and the threaded cylinder (24), and a hinge plate (223) is provided above the hinge plate (221). A pin (222) is rotatably connected between the hinge plate (221) and the hinge plate (223).
5. The easy-to-install electric vehicle frame connecting beam according to claim 4, characterized in that: One end of the hinge plate 2 (223) is slidably connected to the outer wall of the crescent sleeve (21). The outer wall of the crescent sleeve (21) is provided with a guide groove (213). The two inner walls of the guide groove (213) are provided with slots (214). A slider (215) is slidably connected inside the slot (214). The outer wall of the slider (215) is fixedly connected to the outer wall of the hinge plate 2 (223).
6. The easy-to-install electric vehicle frame connecting beam according to claim 1, characterized in that: One end of the beam (23) is fixedly connected to a lead screw (231), and the inner wall of the threaded cylinder (24) is provided with a threaded groove that is compatible with the lead screw (231). One end of the lead screw (231) is threadedly connected to the inner cavity of the threaded cylinder (24).