一种牵引架结构及拖车

Abstract

本实用新型属于运输设备技术领域，公开了一种牵引架结构及拖车，牵引架结构包括第一架体、第二架体和调整件，第一架体设有牵引头，牵引头用于与牵引车连接，牵引头能够相对第一架体绕第一方向和第二方向转动，第二架体第一架体背向牵引头的一端与第二架体连接，第一架体能绕第一方向相对于第二架体摆动而具有展开位与收折位，调整件设于第一架体与第二架体之间，用于使第二架体保持于展开位或收折位；拖车包括上述的牵引架结构，还包括底盘，第二架体背向第一架体的一端固定于底盘上。本实用新型提供的牵引架结构，增加与牵引车之间的转动自由度，提升拖行过程中拖车在不平整路面上行驶的可靠性和稳定性，且具有展开与收折功能，便于运输。

Claims

1. A traction frame structure, characterized by, include: The first frame (1) is provided with a traction head (11), which is used to connect with a tractor vehicle. The traction head (11) is capable of rotating relative to the first frame (1) around a first direction and a second direction. The second frame (2) is connected to the second frame (2) at the end of the first frame (1) facing away from the traction head (11). The first frame (1) can swing relative to the second frame (2) in a first direction and has an unfolded position and a folded position. An adjusting component (3) is provided between the first frame (1) and the second frame (2) to keep the second frame (2) in the unfolded position or the folded position.

2. The traction frame structure according to claim 1, characterized in that, A transmission component (12) is provided between the first frame (1) and the traction head (11), the transmission component (12) including a first connector (121) and a second connector (122); wherein, The first connector (121) is disposed on the first frame (1), the first connector (121) has a first hole (1211) along the second direction, the second connector (122) has a first rotating shaft (1221), the first rotating shaft (1221) is inserted into the first hole (1211) and rotatably connected to the first hole (1211); The second connector (122) has a second hole (1222) along the first direction, and the traction head (11) has a second rotating shaft (112), which is inserted into the second hole (1222) and rotatably connected to the second hole (1222).

3. The traction frame structure of claim 2, wherein, The first connector (121) has a lubrication hole (1212) communicating with the first hole (1211), and a plug (1213) is detachably provided on the lubrication hole (1212).

4. The traction frame structure of claim 2, wherein, The second connector (122) is provided with two connecting parts (1223) spaced apart along the first direction. Each connecting part (1223) is provided with a second hole (1222). The traction head (11) is located between the two connecting parts (1223). The two opposite ends of the connecting parts (1223) are provided with a second rotating shaft (112). The second rotating shaft (112) is rotatably inserted into the second hole (1222) at the corresponding end.

5. The traction frame structure of claim 1, wherein, The adjusting component (3) includes a swing rod (31) and a positioning pin (32). The swing rod (31) is hinged to the second frame (2). The swing rod (31) has a first positioning hole (311) and a second positioning hole (312). The first positioning hole (311) is located at the end of the swing rod (31) away from the second frame (2), and the second positioning hole (312) is located in the middle of the swing rod (31). The first frame (1) has a connecting hole (1332). When the first frame (1) is in the unfolded position, the positioning pin (32) passes through the first positioning hole (311) and the connecting hole (1332); when the first frame (1) is in the folded position, the positioning pin (32) passes through the second positioning hole (312) and the connecting hole (1332).

6. The traction frame structure of claim 5, wherein, The first frame (1) includes a positioning frame (131) and a hinge frame (132) disposed on opposite sides of the positioning frame (131). The positioning frame (131) is fixedly connected to the hinge frame (132). The positioning frame (131) is provided with an adjustment head (1331). The connection hole (1332) is opened on the adjustment head (1331). The hinge frame (132) is hinged to the second frame (2).

7. The traction frame structure of claim 6, wherein, The first frame (1) also includes a crossbeam (133) connected between the two hinged frame parts (132), the positioning frame part (131) is fixedly connected to the crossbeam part (133), and the adjusting head (1331) is provided on the crossbeam part (133).

8. The traction frame structure according to claim 6, characterized in that, The second frame (2) is provided with a hinge joint (21) corresponding to the adjustment head (1331). The hinge joint (21) is provided with a first hinge shaft (211). The first hinge shaft (211) is hinged to the end of the swing rod (32) away from the first frame (1).

9. The traction frame structure of claim 6, wherein, The hinge frame (132) is provided with multiple weight-reducing holes (1321).

10. A trailer characterized by, The system includes the traction frame structure as described in any one of claims 1-9, and also includes a chassis, wherein one end of the second frame (2) facing away from the first frame (1) is fixed to the chassis.

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