Center sill threading structure of electric vehicle

Abstract

The utility model discloses an electric vehicle center sill threading structure, which belongs to the technical field of center sill threading structures, and comprises an electric vehicle center sill and a threading hole which is arranged on the inner wall of the electric vehicle center sill and is used for threading, and a wire clamping structure which is used for clamping a connecting wire is arranged in the threading hole. And a guide structure for pulling the wire clamping structure and the connecting wire is arranged on the clamping structure. When in use, the guide frame can be arranged in the threading hole and fixed by the mounting bolt, then a connecting wire extends into the wire clamping groove and is clamped by the wire clamping plate by rotating the adjusting screw rod, and at the moment, the pulling rope can be pulled to drive the wire clamping groove to move, so that the connecting wire is pulled by the wire clamping groove; and finally, the connecting wire penetrates out of the other end of the threading hole, threading operation is completed, by conducting traction operation on the connecting wire, the connecting wire can be prevented from being bent and blocked in the threading hole during threading, the threading process is prevented from being affected, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of the wire threading structure of the middle beam, in particular to a wire threading structure of the middle beam of an electric vehicle. Background Art

[0002] The wire threading of the middle beam of an electric vehicle refers to the process of passing the power wire harness or other necessary wire harnesses of the electric vehicle through the middle beam part of the electric vehicle for fixation and arrangement.

[0003] Chinese Patent Publication No. CN218400820U discloses a novel wire threading structure of the middle beam of an electric vehicle, including: a middle beam, which is fixedly connected to the chassis of an electric tricycle. Among them, the middle beam includes: a first connection section, a second connection section, and a third connection section. The first connection section and the second connection section are parallel to each other and are arranged in a staggered manner. A third connection section is fixedly connected between the adjacent ends of the first connection section and the second connection section. Moreover, the first connection section, the second connection section, and the third connection section are interconnected. A slot hole communicating with its interior is opened on one outer wall of the first connection section. The power wire harness of the motor / controller is changed to penetrate inside the square tube of the middle beam. No wire clip is welded on the outer wall surface of the square tube of the middle beam to fix the wire harness. At the same time, the process of installing the wire harness on the side of the square tube of the middle beam is also avoided. The wire harness is concentrated inside the middle beam, avoiding the hanging up of the wire harness.

[0004] In the above-mentioned disclosed prior art, during the process of threading the middle beam of an electric vehicle, due to the certain length of the middle beam and the lack of traction measures for the connecting wire, and the connecting wire is relatively soft, the connecting wire is prone to bending and blocking inside the middle beam during wire threading, affecting the wire threading process. Moreover, after wire threading, the connecting wire is not fixed inside the middle beam tube. During driving, the vehicle will experience various vibrations and impacts, which easily cause the wire to shake and rub against the middle beam or other components. Over time, it is easy to cause wear of the wire. Summary of the Utility Model

[0005] Aiming at the above-mentioned existing technical deficiencies, the purpose of the utility model is to provide a wire threading structure of the middle beam of an electric vehicle to solve some or all of the problems in the above background art.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A wire threading structure of the middle beam of an electric vehicle, including:

[0008] The middle beam of an electric vehicle;

[0009] A wire threading hole, which is opened on the inner wall of the middle beam of the electric vehicle for wire threading;

[0010] A wire clamping structure, which is arranged in the wire threading hole for clamping the connecting wire;

[0011] A guiding structure is arranged on the clamping structure and is used to pull the wire clamping structure and the connecting wire;

[0012] A wire tying structure is arranged on the wire clamping structure and is used to tie the connecting wire to fix it.

[0013] Preferably, the wire clamping structure includes:

[0014] A guiding frame is movably installed on the inner wall of the wire threading hole;

[0015] A movable frame is slidably installed on the guiding frame;

[0016] A wire clamping groove is formed on the inner wall of the movable frame;

[0017] A wire clamping plate is slidably installed in the wire clamping groove. The wire clamping plate is used in cooperation with the wire clamping groove to clamp the connecting wire;

[0018] An adjusting screw rod is threadedly installed on the inner wall of the movable frame, and the adjusting screw rod is rotatably installed on one side of the wire clamping plate;

[0019] Mounting bolts are threadedly installed on the middle beam of the electric vehicle and the guiding frame;

[0020] A limiting component is arranged on the wire clamping plate and is used to limit the moving direction of the wire clamping plate. Threaded holes adapted to the mounting bolts are formed on both the guiding frame and the inner wall of the wire threading hole.

[0021] Preferably, the limiting component includes:

[0022] A limiting rotating groove is formed on the inner wall of the adjusting screw rod;

[0023] A limiting shaft is arranged on one side of the wire clamping plate, and the limiting shaft is rotatably installed in the limiting rotating groove;

[0024] A sliding block is arranged on one side of the wire clamping plate;

[0025] A guiding sliding groove is formed on the inner wall of the wire clamping groove, and the sliding block is slidably installed in the guiding sliding groove and is used to limit the moving direction of the sliding block.

[0026] Preferably, the guiding structure includes:

[0027] A first guiding roller is rotatably installed on one side of the movable frame;

[0028] A limiting sliding groove is formed on the inner wall of the guiding frame, and the first guiding roller is movably installed in the limiting sliding groove;

[0029] A second guiding roller is rotatably installed on one side of the movable frame;

[0030] A towing rope is arranged on one side of the movable frame, and one end of the towing rope penetrates through the wire threading hole;

[0031] Among them, the second guiding roller is in contact with one side of the guiding frame.

[0032] Preferably, the wire tying structure includes:

[0033] A flexible plastic strip, which is movably installed on the guiding frame and is in a U shape;

[0034] A linkage steel wire, which is movably installed inside the guiding frame;

[0035] A movable wheel, which is rotatably installed on the inner wall of the guiding frame, and the flexible plastic strip is located on one side of the movable wheel;

[0036] A bundling structure, which is arranged on one side of the guiding frame and is for the linkage steel wire and the towing rope to wind around;

[0037] Among them, two groups of linkage steel wires are arranged, and the two groups of linkage steel wires are respectively arranged at both ends of the flexible plastic strip.

[0038] Preferably, the bundling structure includes a connecting rod arranged on one side of the guiding frame and a wire tying rod arranged on the connecting rod, which are used for bundling the linkage steel wire and the towing rope.

[0039] Preferably, the wire tying structure further includes:

[0040] A wire pressing plate, which is arranged on the flexible plastic strip;

[0041] A rubber strip, which is arranged on one side of the wire pressing plate and is used for increasing the friction force.

[0042] The beneficial effects of the present utility model are as follows:

[0043] In the present utility model, when in use, the guiding frame can be placed in the wire threading hole and fixed by using the mounting bolts, then the connecting wire is extended into the wire clamping groove, and the wire clamping plate is used to clamp the connecting wire by rotating the adjusting screw rod. At this time, the towing rope can be pulled to drive the wire clamping groove to move, so that the wire clamping groove pulls the connecting wire, and finally the connecting wire is led out from the other end of the wire threading hole to complete the wire threading operation. By performing the towing operation on the connecting wire, it can be avoided that the connecting wire bends and blocks in the wire threading hole during wire threading, which affects the wire threading process and improves the production efficiency.

[0044] In the present utility model, during the process of towing the connecting wire by using the wire clamping groove, the connecting wire can pass through the flexible plastic strip. After the wire threading is completed, the two linkage steel wires can be pulled to tighten the flexible plastic strip, and finally the rubber strip on the wire pressing plate can be pressed on the connecting wire to fix the connecting wire in the wire threading hole, preventing the connecting wire from shaking and rubbing against other components due to vibration and impact during the vehicle driving process, and improving the stability of the connecting wire. Description of the Drawings

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0046] Figure 1 Structural schematic diagram of a wire threading structure for the middle beam of an electric vehicle provided by an embodiment of the present invention;

[0047] Figure 2 Structural schematic diagram of a guide frame of a wire threading structure for the middle beam of an electric vehicle provided by an embodiment of the present invention;

[0048] Figure 3 Structural schematic diagram of a movable frame of a wire threading structure for the middle beam of an electric vehicle provided by an embodiment of the present invention;

[0049] Figure 4 Cross-sectional structural schematic diagram of a movable frame of a wire threading structure for the middle beam of an electric vehicle provided by an embodiment of the present invention;

[0050] Figure 5 Structural schematic diagram of a connecting rod of a wire threading structure for the middle beam of an electric vehicle provided by an embodiment of the present invention;

[0051] Figure 6 Cross-sectional structural schematic diagram of a guide frame of a wire threading structure for the middle beam of an electric vehicle provided by an embodiment of the present invention.

[0052] Explanation of reference numerals:

[0053] 1. Middle beam of electric vehicle; 2. Wire threading hole; 3. Guide frame; 301. Movable frame; 302. Clamping wire groove; 303. Clamping wire plate; 304. Adjusting screw rod; 305. Restricting rotating groove; 306. Restricting shaft; 307. Sliding block; 308. Guide sliding groove; 309. Installation bolt; 4. First guide roller; 401. Restricting sliding groove; 402. Second guide roller; 403. Traction rope; 5. Flexible plastic strip; 501. Linking steel wire; 502. Movable wheel; 503. Connecting rod; 504. Binding wire rod; 505. Pressing wire plate; 506. Rubber strip. Detailed implementation manners

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0055] Embodiment 1:

[0056] As Figures 1 to 6 shown, the utility model provides a wire threading structure for an electric vehicle middle beam, including: an electric vehicle middle beam 1 and a wire threading hole 2 opened on the inner wall of the electric vehicle middle beam 1 for wire threading.

[0057] In order to avoid the situation that the connecting wire is bent and blocked in the wire threading hole 2 during the process of threading the electric vehicle middle beam 1, a wire clamping structure for clamping the connecting wire is arranged in the wire threading hole 2, and a guiding structure for pulling the wire clamping structure and the connecting wire is arranged on the clamping structure.

[0058] Among them, the wire clamping structure includes a guiding frame 3 movably installed on the inner wall of the wire threading hole 2, a movable frame 301 slidably installed on the guiding frame 3, a wire clamping groove 302 opened on the inner wall of the movable frame 301, a wire clamping plate 303 slidably installed in the wire clamping groove 302 for clamping the connecting wire, the wire clamping plate 303 is used in cooperation with the wire clamping groove 302, an adjusting screw rod 304 threadedly installed on the inner wall of the movable frame 301, the adjusting screw rod 304 is rotatably installed on one side of the wire clamping plate 303, a mounting bolt 309 threadedly installed on the electric vehicle middle beam 1 and the guiding frame 3, a limiting component arranged on the wire clamping plate 303 for restricting the moving direction of the wire clamping plate 303, threaded holes adapted to the mounting bolt 309 are opened on the inner walls of the guiding frame 3 and the wire threading hole 2. The guiding frame 3 is placed in the wire threading hole 2, and the mounting bolt 309 is screwed into the guiding frame 3 and the electric vehicle middle beam 1 to fix the position of the guiding frame 3. Then, the connecting wire is placed in the wire clamping groove 302, and the adjusting screw rod 304 is rotated to drive the wire clamping plate 303 to move. The continuously moving wire clamping plate 303 will clamp on the connecting wire.

[0059] Specifically, the limiting component includes a limiting rotating groove 305 opened on the inner wall of the adjusting screw rod 304, a limiting shaft 306 arranged on one side of the wire clamping plate 303, the limiting shaft 306 is rotatably installed in the limiting rotating groove 305, a sliding block 307 arranged on one side of the wire clamping plate 303, a guiding sliding groove 308 opened on the inner wall of the wire clamping groove 302 for restricting the moving direction of the sliding block 307, the sliding block 307 is slidably installed in the guiding sliding groove 308. The rotating adjusting screw rod 304 can rotate on the limiting shaft 306 through the limiting rotating groove 305. When the wire clamping plate 303 moves, it can drive the sliding block 307 to slide in the guiding sliding groove 308, thereby restricting the moving direction of the wire clamping plate 303.

[0060] Among them, the guiding structure includes a first guiding roller 4 rotatably installed on one side of the movable frame 301, a limiting chute 401 opened on the inner wall of the guiding frame 3, the first guiding roller 4 is movably installed in the limiting chute 401, a second guiding roller 402 rotatably installed on one side of the movable frame 301, a traction rope 403 arranged on one side of the movable frame 301, one end of the traction rope 403 passes through the threading hole 2, the second guiding roller 402 is in contact with one side of the guiding frame 3, pulling the traction rope 403 causes the traction rope 403 to drive the movable frame 301 to move, and the moving movable frame 301 can drive the first guiding roller 4 to move and roll in the limiting chute 401. At the same time, the movable frame 301 can drive the second guiding roller 402 to move and roll on the guiding frame 3. By setting the first guiding roller 4 and the second guiding roller 402, the movable frame 301 can move more smoothly when moving, avoiding its deviation, and finally the connecting wire can be passed out from the other end of the electric vehicle middle beam 1 to complete the wire threading operation.

[0061] Embodiment 2:

[0062] On the basis of Embodiment 1, in order to reduce the shaking generated by the connecting wire during driving and reduce the friction with other components, a wire tying structure for tying and fixing the connecting wire is arranged on the wire clamping structure.

[0063] Among them, the wire tying structure includes a flexible plastic strip 5 movably installed on the guiding frame 3, the flexible plastic strip 5 is U-shaped, a linkage steel wire 501 movably installed in the guiding frame 3, a movable wheel 502 rotatably installed on the inner wall of the guiding frame 3, the flexible plastic strip 5 is located on one side of the movable wheel 502, a bundling structure arranged on one side of the guiding frame 3 for winding the linkage steel wire 501 and the traction rope 403, there are two groups of linkage steel wires 501, and the two groups of linkage steel wires 501 are respectively arranged at both ends of the flexible plastic strip 5. Pulling the linkage steel wire 501 causes one end of the flexible plastic strip 5 connected to it to be received into the guiding frame 3, tightening the flexible plastic strip 5, and during the process, the flexible plastic strip 5 will contact the movable wheel 502 and drive it to rotate.

[0064] Specifically, the bundling structure includes a connecting rod 503 arranged on one side of the guiding frame 3 and a wire tying rod 504 arranged on the connecting rod 503 for tying the linkage steel wire 501 and the traction rope 403. Both the traction rope 403 and the linkage steel wire 501 can be tied to the wire tying rod 504 for fixation.

[0065] Among them, the wire tying structure also includes a pressing plate 505 arranged on the flexible plastic strip 5 and a rubber strip 506 arranged on one side of the pressing plate 505 for increasing friction. The continuously tightened flexible plastic strip 5 will drive the rubber strip 506 on the pressing plate 505 to press on the connecting wire to fix the connecting wire.

[0066] Working principle:

[0067] When in use, the towing rope 403 and the linkage wire 501 can be first tied to the wire tying rod 504, and then the guide frame 3 is placed into the wire threading hole 2. The guide frame 3 is fixed in position by screwing the mounting bolts 309 into the guide frame 3 and the electric vehicle central beam 1. Then the connecting wire is placed in the wire clamping groove 302, and then the adjusting screw rod 304 is rotated. The rotating adjusting screw rod 304 can rotate on the limiting shaft 306 through the limiting groove 305. At the same time, the rotating adjusting screw rod 304 can move through the threaded fit with the movable frame 301, so that the moving adjusting screw rod 304 drives the wire clamping plate 303 to move. The wire clamping plate 303 drives the sliding block 307 to slide in the guide chute 308, thereby restricting the moving direction of the wire clamping plate 303. The continuously moving wire clamping plate 303 will clamp the connecting wire. Then the towing rope 403 tied to the wire tying rod 504 can be loosened and the towing rope 403 is pulled, so that the towing rope 403 drives the movable frame 301 to move. The moving movable frame 301 can drive the first guide roller 4 to move and roll in the limiting chute 401. At the same time, the movable frame 301 can drive the second guide roller 402 to move and roll on the guide frame 3. By arranging the first guide roller 4 and the second guide roller 402, the movable frame 301 can move more smoothly when moving, avoiding its deviation. The continuously moving movable frame 301 can drive the clamped connecting wire to pass through the flexible plastic strip 5. The flexible plastic strip 5 can be made of flexible plastic material, so that it can be in a U shape on the guide frame 3, and at the same time prevent the flexible plastic strip 5 from bending and collapsing, and finally pass out from the other end of the electric vehicle central beam 1 to complete the wire threading operation. At this time, the towing rope 403 can be re-tied to the wire tying rod 504 for fixation, and then the adjusting screw rod 304 is rotated in the reverse direction to release the clamped connecting wire for wire connection operation. After the wire connection is completed, the linkage wire 501 tied to the wire tying rod 504 is loosened, and then the linkage wire 501 is pulled, so that one end of the connected flexible plastic strip 5 driven by the linkage wire 501 is received into the guide frame 3 to tighten the flexible plastic strip 5. During the process, the flexible plastic strip 5 will contact the movable wheel 502 and drive it to rotate. The continuously tightened flexible plastic strip 5 will drive the rubber strip 506 on the wire pressing plate 505 to press on the connecting wire to fix the connecting wire, reducing the friction between the connecting wire and other components during driving. After tightening, the linkage wire 501 can be re-tied to the wire tying rod 504 for fixation.

[0068] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A wire threading structure for a center beam of an electric vehicle, characterized in that: include: Electric vehicle center beam (1); A threading hole (2) is provided on the inner wall of the center beam (1) of the electric vehicle and is used for threading a wire; A wire clamping structure, arranged in the wire threading hole (2) and used for clamping the connecting wire; A guide structure, arranged on the clamping structure, used for pulling the wire clamping structure and the connecting wire; The wire binding structure is arranged on the wire clamping structure and is used to bind the connecting wire to fix it.

2. The electric vehicle center beam threading structure according to claim 1, characterized in that: The wire clamping structure comprises: A guide frame (3) is movably mounted on the inner wall of the threading hole (2); A movable frame (301) is slidably mounted on the guide frame (3); A wire clamping groove (302) is provided on the inner wall of the movable frame (301); A wire clamping plate (303) is slidably mounted in the wire clamping groove (302), and the wire clamping plate (303) is used in conjunction with the wire clamping groove (302) to clamp the connecting wire; An adjusting screw rod (304) is threadedly mounted on the inner wall of the movable frame (301), and the adjusting screw rod (304) is rotatably mounted on one side of the clamping plate (303); A mounting bolt (309) is threadedly mounted on the middle beam (1) and the guide frame (3) of the electric vehicle; The limiting assembly is arranged on the clamping plate (303) and is used to limit the moving direction of the clamping plate (303). The inner walls of the guide frame (3) and the threading hole (2) are both provided with threaded holes matched with the mounting bolts (309).

3. The electric vehicle center beam threading structure as claimed in claim 2, characterized in that: The limiting component comprises: A rotation limiting groove (305) is provided on the inner wall of the adjusting screw rod (304); A limiting shaft (306) is arranged on one side of the clamping plate (303), and the limiting shaft (306) is rotatably installed in the limiting rotation groove (305); A sliding block (307) is arranged on one side of the clamping plate (303); The guide slide groove (308) is provided on the inner wall of the wire clamping groove (302), and the sliding block (307) is slidably installed in the guide slide groove (308) to limit the moving direction of the sliding block (307).

4. The electric vehicle center beam threading structure according to claim 1, characterized in that: The guiding structure comprises: A guide roller (4) is rotatably mounted on one side of the movable frame (301); A limiting slide groove (401) is provided on the inner wall of the guide frame (3), and the guide roller 1 (4) is movably installed in the limiting slide groove (401); A second guide roller (402) is rotatably mounted on one side of the movable frame (301); A traction rope (403) is arranged on one side of the movable frame (301), and one end of the traction rope (403) passes through the threading hole (2); Wherein, the second guide roller (402) is in contact with one side of the guide frame (3).

5. The electric vehicle center beam threading structure according to claim 1, characterized in that: The wire binding structure comprises: A flexible plastic strip (5) is movably mounted on the guide frame (3), and the flexible plastic strip (5) is U-shaped; A linkage steel wire (501) is movably mounted in the guide frame (3); A movable wheel (502) is rotatably mounted on the inner wall of the guide frame (3), and a flexible plastic strip (5) is located on one side of the movable wheel (502); A binding structure is arranged on one side of the guide frame (3) and can be used for winding the linkage steel wire (501) and the traction rope (403); There are two groups of linkage steel wires (501), and the two groups of linkage steel wires (501) are respectively arranged at two ends of the flexible plastic strip (5).

6. The electric vehicle center beam threading structure as claimed in claim 5, characterized in that: The binding structure comprises a connecting rod (503) arranged on one side of the guide frame (3) and a wire binding rod (504) arranged on the connecting rod (503), and is used for binding the linkage steel wire (501) and the traction rope (403).

7. The electric vehicle center beam threading structure according to claim 1, characterized in that: The wire binding structure further includes: A wire pressing plate (505) is arranged on the flexible plastic strip (5); The rubber strip (506) is arranged on one side of the wire pressing plate (505) to increase friction.

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