Granted Patent B2

US 12,728,902 · App. 18/469,471 · Granted Sep 8, 2026

Inventor: Qingyuan Wu (Jinhua, CN)

B62B3/02B62B3/002B62B5/067B62B2205/06

Abstract

Claims (19)

1 . A gathering trailer, comprising: an upright rod assembly,

wherein the upright rod assembly comprises a first upright rod, a second upright rod, a third upright rod, and a fourth upright rod, a top and a bottom of each of the first, second, third and fourth upright rods being fixed with upper fixing members and four lower fixing members respectively, and the first, second, third and fourth upright rods being externally covered with middle movable members slidingly cooperating with the first, second, third and fourth upright rods;

left-and-right contraction adjusting assemblies are provided between the first upright rod and the third upright rod, and between the second upright rod and the fourth upright rod, as well as between the second upright rod and the fourth upright rod, respectively,

the left-and-right contraction adjusting assemblies comprise a first left-and-right adjusting lever and a fourth left-and-right adjusting lever cooperating with the upper fixing members, and a fifth left-and-right adjusting lever and an eighth left-and-right adjusting lever cooperating with the middle movable members,

a sixth left-and-right adjusting lever and a second left-and-right adjustment lever are sequentially provided outside the fifth left-and-right adjusting lever;

a seventh left-and-right adjusting lever and a third left-and-right adjusting lever are sequentially provided outside the eighth left-and-right adjusting lever.

2 . The gathering trailer according to claim 1 , wherein the first left-and-right adjusting lever and the fourth left-and-right adjusting lever are connected via a pivot axis, the fifth left-and-right adjusting lever and the first left-and-right adjusting lever are connected via a pivot axis;

the fifth left-and-right adjusting lever and the sixth left-and-right adjusting lever are connected via a pivot axis, and the sixth left-and-right adjusting lever is connected to the second left-and-right adjusting lever by means of a pivot axis;

the second left-and-right adjusting lever is also connected to the third left-right adjusting lever by means of a pivot axis, and the first left-and-right adjusting lever, the second left-and-right adjusting lever, the fifth left-and-right adjusting lever, the sixth left-and-right adjusting lever are symmetrically disposed with the fourth left-and-right adjusting lever, the third left-right adjusting lever, the eighth left-and-right adjusting lever, and the seventh left-and-right adjusting lever.

3 . The gathering trailer according to claim 1 , wherein the first upright rod and second upright rod, as well as the third upright rod and fourth upright rod are provided with front-and-rear contraction adjusting assemblies between them respectively;

the front-and-rear contraction adjusting assemblies comprise a first front-and-rear adjusting lever and a second front-and-rear adjusting lever cooperating with the upper fixing members, and the front-and-rear contraction adjusting assemblies further comprise a third front-and-rear adjusting lever and a fourth front-and-rear adjusting lever rotationally cooperating with the middle movable members.

4 . The gathering trailer according to claim 3 , wherein the first front-and-rear adjusting lever and the second front-and-rear adjusting lever are connected by a pivot axis, and the third front-and-rear adjusting lever and the fourth front-and-rear adjusting lever are connected by a pivot axis, and the first front-and-rear adjusting lever and the third front-and-rear adjusting lever are connected by a pivot axis, and the second front-and-rear adjusting lever and fourth front-and-rear adjusting lever are connected by a pivot axis, and the first front-and-rear adjusting lever and third front-and-rear adjusting lever are symmetrically disposed with the second front-and-rear adjusting lever and fourth front-and-rear adjusting lever.

5 . The gathering trailer according to claim 1 , wherein the upright rod assembly is provided with a lifting assembly at a bottom,

the lifting assembly comprises a first lifting bar, a second lifting bar, a third lifting bar and a fourth lifting bar cooperating with the four lower fixing members, respectively, and the first lifting bar, the second lifting bar, the third lifting bar and the fourth lifting bar are distributed in an X-shape, and a lifting member is provided at a cross center of the first, second, third and fourth lifting bars.

6 . The gathering trailer according to claim 1 , wherein a pull rod assembly is arranged between the first upright rod and the second upright rod, the pull rod assembly comprises pull rod joint pieces fixed at bottoms of the first upright rod and the second upright rod, two of the pull rod joint pieces are provided with contraction rods rotationally matched therewith, two of the contraction rods are provided with a pull rod fixing piece rotationally matched therewith at the same time, a third pull rod is fixed inside the pull rod fixing piece, a second pull rod is sleeved inside the third pull rod, and a first pull rod is sleeved inside the second pull, and a top of the first pull rod is fixed with a handle.

7 . The gathering trailer according to claim 1 , wherein a bottom of the upright rod assembly is further provided with a movable assembly, and the movable assembly comprises wheel frames respectively installed at bottoms of four upright rods, and wheels are arranged in each of the wheel frames.

8 . The gathering trailer according to claim 2 , wherein when the gathering trailer is folded, a side angle between the first left-and-right adjusting lever and fifth left-and-right adjusting lever, the fifth left-and-right adjusting lever and sixth left-and-right adjusting lever, the first left-and-right adjusting lever and the second left-and-right adjusting lever, the fourth left-and-right adjusting lever and the eighth left-and-right adjusting lever, an angle between the eighth left-and-right adjusting lever and the seventh left-and-right adjusting lever, the fourth left-and-right adjusting lever and the third left-and-right adjusting lever gradually increases, and the side angle between the fifth left-and-right adjusting lever and the sixth left-and-right adjusting lever, the sixth left-and-right adjusting lever and the second left-and-right adjusting lever, the fifth left-and-right adjusting lever and the second left-and-right adjusting lever, the second left-and-right adjusting lever and the third left-right adjusting lever, the eighth left-and-right adjusting lever and the seventh left-and-right adjusting lever rod, the seventh left-and-right adjusting lever and the third left-right adjusting lever, the eighth left-and-right adjusting lever and the fourth left-and-right adjusting lever with the end pinch angle between said.

9 . The gathering trailer according to claim 4 , wherein when the gathering trailer is folded, the end pinch angle between the first front-and-rear adjusting lever and the second front-and-rear adjusting lever, the third front-and-rear adjusting lever and the fourth front-and-rear adjusting lever gradually decreases, and the end pinch angle between the first front-and-rear adjusting lever and the third front-and-rear adjusting lever, the second front-and-rear adjusting lever and the fourth front-and-rear adjusting lever, the side angle between the first front-and-rear adjusting lever and the third front-and-rear adjusting lever, the second front-and-rear adjusting lever and the fourth front-and-rear adjusting lever gradually increases.

10 . The gathering trailer according to claim 5 , the gathering trailer is folded in such a way that the lifting member gradually rises, and that the first lifting bar, the second lifting bar, the third lifting bar and the fourth lifting bar gradually rise close to one end of the lifting member.

Priority Claims (1)

Continuity (1)

References Cited (41)