Turnover plate folding structure of gathering trolley

Abstract

The utility model relates to the technical field of gathering trolleys, in particular to a gathering trolley turning plate folding structure which comprises four connecting plates, side limiting mechanisms are arranged on the upper sides of the four connecting plates and used for limiting goods on the trolley in the front direction, the rear direction, the left direction and the right direction, and a bottom supporting machine is arranged among the four connecting plates. According to the scheme, goods can be supported through two ninth rotating rods and an n-shaped limiting plate, canvas in a hollow area is supported, and then the situation that the canvas is pulled, falls and deforms due to the fact that the goods are too heavy, and consequently the canvas is separated from the frame is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gathering trolleys, in particular to a flap folding structure of a gathering trolley. Background Art

[0002] The gather trolley is a foldable trolley that can be easily stored when not in use. When the trolley is needed, the trolley can be unfolded to hold goods and can be towed and moved, which is very convenient.

[0003] Patent documents in the field of trolley technology are disclosed in the prior art. The Chinese patent with application number 202022916947.0 discloses a reversible tailgate structure for a gathering trolley. The left rear upper fixed seat and the left rear lower fixed seat are respectively fixed to the upper and lower ends of the rear column of the left side wall, the left rear upper fixed seat is hinged to the rear horizontal tube of the left side wall, and the left rear lower fixed seat is also hinged to the left rear cross tube and the left frame tube respectively; the right rear upper fixed seat and the right rear lower fixed seat are respectively fixed to the upper and lower ends of the rear column of the right side wall.

[0004] In the above patent, the two left side wall rear pillars are supported only by the right low pipe frame at the bottom, so there is a huge hollow space between the flap and the vehicle body. After the canvas is installed on the vehicle body and the flap, it is very difficult to support the goods in the hollow space only by the soft canvas. The goods will bend and deform the soft canvas. Especially when the gathering trolley moves from static to moving, the goods will hit the flap and drag the canvas under the action of inertia, causing the canvas and the frame to separate. Therefore, the bottom support effect of the connection between the flap and the vehicle body is not good. In order to facilitate the support of the goods between the flap and the vehicle body, we propose a gathering trolley flap folding structure. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a flap folding structure for a gathering trolley.

[0006] To achieve the above objectives, the technical solution adopted by the utility model is: a flap-folding structure for gathering trolleys, comprising four connecting plates, side limiting mechanisms are arranged on the upper sides of the four connecting plates, the side limiting mechanisms are used to limit the goods on the trolley in three directions of front, back and left, a bottom supporting mechanism is arranged between the four connecting plates, the bottom supporting mechanism is used to support the goods on the trolley, a flap mechanism is arranged on the right sides of the two right connecting plates, the flap mechanism is used to open and close the right part of the limited trolley, the end surfaces of the two right connecting plates that are close to each other are rotatably hinged with a ninth rotating rod, an n-shaped limiting plate is rotatably hinged between the two ninth rotating rods, and the two ninth rotating rods are both limited to the lower side of the n-shaped limiting plate.

[0007] Preferably, the side limiting mechanism includes four first support columns, the four first support columns are respectively fixedly connected to the upper end surfaces of the four connecting plates, the upper end surfaces of the two left connecting plates are fixedly connected to the second connecting blocks, the upper end surfaces of the two first support columns on the right are fixedly connected to the first connecting blocks, the two first connecting blocks and the two second connecting blocks are rotatably hinged with the first rotating rod, the four first rotating rods are rotatably connected to the second rotating rod, the two front second rotating rods and the two rear second rotating rods are hinged to each other, the four connecting plates are rotatably hinged with the third rotating rod, the two front third rotating rods and the two rear third rotating rods are hinged to each other, the four second rotating rods are respectively rotatably hinged at the middle parts of the four third rotating rods, the two second connecting blocks are rotatably hinged with the fourth rotating rod, the other ends of the two fourth rotating rods are rotatably hinged with the fifth rotating rod, the other ends of the two fifth rotating rods are respectively rotatably hinged on the two left connecting plates, and the middle parts of the two fifth rotating rods are hinged to each other.

[0008] Preferably, the bottom supporting mechanism includes a third connecting block, the lower end surface of the third connecting block is rotatably hinged with four sixth rotating rods, and the four sixth rotating rods are all limited to the lower side of the third connecting block, and the four sixth rotating rods are rotatably hinged on four connecting plates respectively.

[0009] Preferably, the flap mechanism includes two fourth connecting blocks, the two fourth connecting blocks are respectively rotated to the right end faces of the two right connecting plates through hinges, the right end faces of the two fourth connecting blocks are fixedly connected to the second support columns, the right end faces of the two second support columns are fixedly connected to the fifth connecting blocks, the two fifth connecting blocks are rotatably hinged with the seventh rotating rod, the other ends of the two seventh rotating rods are rotatably hinged with the eighth rotating rod, the two eighth rotating rods are respectively rotatably hinged to the two right connecting plates, and the middle parts of the two eighth rotating rods are hinged to each other, the circumferential surfaces of the two second support columns are fixedly connected with canvas traction ropes, the other ends of the two canvas traction ropes are respectively fixedly connected to the two first support columns on the right side, and buckle assemblies are arranged between the two second support columns and the two first support columns on the right side, and the buckle assemblies are used to fix the positions of the second support columns and the connecting plates.

[0010] Preferably, the buckle assembly includes a plastic buckle, which is rotatably connected to the circumferential surface of the second support column, and the circumferential surface of the first support column is provided with a circular groove, a steel column is slidably connected in the circular groove, and a spring is fixedly connected between the steel column and the inner wall of the first support column.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In this solution, when the device is not needed and needs to be folded and stored, the n-shaped limit plate is held and pulled upward to drive the two ninth rotating rods to rotate, so that the two front connecting plates are brought closer to the two rear connecting plates, and then the folding side limit mechanism, the bottom limit mechanism and the flap limit mechanism can be used to realize the folding and storage of the device. When the device needs to be unfolded and used, the n-shaped limit plate is pressed downward to drive the two ninth rotating rods to rotate and unfold. When the two ninth rotating rods are in a straight line, the upper ends of the two ninth rotating rods are The surface of the ninth rotating rod rests on the upper inner wall of the N-shaped limiting plate, so the two ninth rotating rods cannot continue to rotate, and the device can be unfolded and used by unfolding the side limiting mechanism, the bottom limiting mechanism and the flap limiting mechanism. When the goods are placed in the canvas of the device, since the two ninth rotating rods and the N-shaped limiting plate are supported between the flap and the frame, the goods can be supported by the two ninth rotating rods and the N-shaped limiting plate, and the canvas in the hollow area can be supported, which is beneficial to prevent the canvas from being pulled down and deformed due to the excessive weight of the goods and even separated from the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 It is a three-dimensional cross-sectional view of the first support column of the utility model;

[0015] Figure 3 for Figure 2 A magnified image of point A;

[0016] Figure 4 It is a planar cross-sectional view of the n-shaped limiting plate of the utility model.

[0017] In the figure: 1. connecting plate; 101. first supporting column; 102. first connecting block; 103. first rotating rod; 104. second rotating rod; 105. third rotating rod; 106. second connecting block; 107. fourth rotating rod; 108. fifth rotating rod; 109. sixth rotating rod; 1010. third connecting block; 2. fourth connecting block; 3. second supporting column; 4. fifth connecting block; 5. seventh rotating rod; 6. eighth rotating rod; 7. canvas traction rope; 8. ninth rotating rod; 9. n-shaped limiting plate; 10. plastic buckle; 11. spring; 12. circular groove; 13. steel column. DETAILED DESCRIPTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0019] like Figure 1-Figure 4The shown structure is a flap-folding structure for a gathering trolley, comprising four connecting plates 1, wherein a side limiting mechanism is arranged on the upper side of the four connecting plates 1, and the side limiting mechanism is used to limit the goods on the trolley in three directions of front, back and left. A bottom supporting mechanism is arranged between the four connecting plates 1, and the bottom supporting mechanism is used to support the goods on the trolley. A flap mechanism is arranged on the right side of the two right connecting plates 1, and the flap mechanism is used to open and close the right part of the limited trolley. The end surfaces of the two right connecting plates 1 that are close to each other are both rotatably hinged with a ninth rotating rod 8, and an n-shaped limiting plate 9 is rotatably hinged between the two ninth rotating rods 8, and the two ninth rotating rods 8 are both limited at the lower side of the n-shaped limiting plate 9.

[0020] During operation, when the device is not needed and needs to be folded and stored, the n-shaped limiting plate 9 is held and pulled upward to drive the two ninth rotating rods 8 to rotate, so that the two front connecting plates 1 are brought closer to the two rear connecting plates 1, and then the folding side limiting mechanism, the bottom limiting mechanism and the flap limiting mechanism are folded to realize the folding and storage of the device. When the device needs to be unfolded and used, the n-shaped limiting plate 9 is pressed downward to drive the two ninth rotating rods 8 to rotate and unfold. When the two ninth rotating rods 8 are in a straight line, the upper and lower ends of the two ninth rotating rods 8 are in a straight line. The end face is against the upper inner wall of the N-shaped limiting plate 9, so the two ninth rotating rods 8 cannot continue to rotate, and the device can be unfolded and used by unfolding the side limiting mechanism, the bottom limiting mechanism and the flap limiting mechanism. When the goods are placed in the canvas of the device, since the two ninth rotating rods 8 and the N-shaped limiting plate 9 are supported between the flap and the frame, the goods can be supported by the two ninth rotating rods 8 and the N-shaped limiting plate 9, and the canvas in the hollow area can be supported, which is beneficial to prevent the canvas from being pulled down and deformed due to the excessive weight of the goods and separated from the frame.

[0021] Specifically, the side limiting mechanism includes four first support columns 101, and the four first support columns 101 are respectively fixedly connected to the upper end surfaces of the four connecting plates 1, the upper end surfaces of the two connecting plates 1 on the left are fixedly connected with the second connecting blocks 106, and the upper end surfaces of the two first support columns 101 on the right are fixedly connected with the first connecting blocks 102, the two first connecting blocks 102 and the two second connecting blocks 106 are rotatably hinged with the first rotating rod 103, and the four first rotating rods 103 are rotatably connected with the second rotating rod 104, and the two second rotating rods 104 on the front side and the two second rotating rods 104 on the rear side are fixedly connected with the first connecting block 102. The rods 104 are hinged to each other, the four connecting plates 1 are rotatably hinged with the third rotating rods 105, the two third rotating rods 105 on the front side and the two third rotating rods 105 on the rear side are hinged to each other, the four second rotating rods 104 are respectively rotatably hinged to the middle parts of the four third rotating rods 105, the two second connecting blocks 106 are respectively rotatably hinged with the fourth rotating rod 107, the other ends of the two fourth rotating rods 107 are rotatably hinged with the fifth rotating rod 108, the other ends of the two fifth rotating rods 108 are respectively rotatably hinged on the two connecting plates 1 on the left side, and the middle parts of the two fifth rotating rods 108 are hinged to each other.

[0022] During operation, when the device needs to be folded and stored, the four first support columns 101 are moved closer to each other, and the third rotating rod 105 and the second rotating rod 104 are rotated to realize the movement of the two first support columns 101 on the left side and the two first support columns 101 on the right side toward the closer side, and the two fifth rotating rods 108 are rotated to drive the two fourth rotating rods 107 to rotate and tilt upward, thereby realizing the movement of the two first support columns 101 on the front side and the two first support columns 101 on the rear side toward the closer side, thereby realizing the folding and storage of the side limiting mechanism, and when the device needs to be unfolded, the four first support columns 101 are moved toward the farther side.

[0023] Specifically, the bottom support mechanism includes a third connecting block 1010, and the lower end surface of the third connecting block 1010 is rotatably hinged with four sixth rotating rods 109, and the four sixth rotating rods 109 are all limited to the lower side of the third connecting block 1010, and the four sixth rotating rods 109 are rotatably hinged on the four connecting plates 1 respectively.

[0024] During operation, when the device needs to be folded and stored, the third connecting block 1010 is held and pulled upward. The third connecting block 1010 moves upward to drive the four sixth rotating rods 109 to rotate, thereby driving the four first support columns 101 to move toward the closer side, thereby realizing the folding and storage of the bottom support mechanism. When the device needs to be unfolded, the third connecting block 1010 is pressed downward to drive the four sixth rotating rods 109 to rotate and unfold. When the four sixth rotating rods 109 are located in the same horizontal plane, the upper surfaces of the close ends of the four sixth rotating rods 109 are against the lower surface of the third connecting block 1010, and the four sixth rotating rods 109 cannot continue to rotate, thereby facilitating the four sixth rotating rods 109 and the third connecting block 1010 to support the goods, thereby completing the unfolding of the bottom support mechanism.

[0025] Specifically, the flap mechanism includes two fourth connecting blocks 2, and the two fourth connecting blocks 2 are respectively rotated on the right end faces of the two right connecting plates 1 through hinges, the right end faces of the two fourth connecting blocks 2 are fixedly connected with the second support column 3, the right end faces of the two second support columns 3 are fixedly connected with the fifth connecting block 4, the two fifth connecting blocks 4 are rotatably hinged with the seventh rotating rod 5, the other ends of the two seventh rotating rods 5 are rotatably hinged with the eighth rotating rod 6, the two eighth rotating rods 6 are respectively rotatably hinged on the two right connecting plates 1, and the middle parts of the two eighth rotating rods 6 are hinged to each other, the circumferential surfaces of the two second support columns 3 are fixedly connected with canvas traction ropes 7, the other ends of the two canvas traction ropes 7 are respectively fixedly connected to the two first support columns 101 on the right, and buckle assemblies are arranged between the two second support columns 3 and the two first support columns 101 on the right, and the buckle assemblies are used to fix the positions of the second support columns 3 and the connecting plates 1.

[0026] During operation, when it is necessary to load or unload goods into the device, open the buckle mechanism, rotate the second support column 3, and under the pull of the canvas traction rope 7, the first support column 101 and the canvas traction rope 7 form an angle of ninety degrees, and the goods can be loaded or unloaded into the device. After loading or unloading, rotate the canvas traction rope 7 in the opposite direction so that the canvas traction rope 7 sticks to the surface of the first support column 101, and connect the canvas traction rope 7 and the first support column 101 through the buckle assembly. When it is necessary to fold and store the device, first close the flap mechanism, and when the two first support columns 101 on the front side and the two first support columns 101 on the rear side move toward the closer side, they drive the two canvas traction ropes 7 to move toward the closer side, and the two eighth rotating rods 6 rotate to drive the two seventh rotating rods 5 to rotate, thereby realizing the folding and storage of the flap mechanism. When it is necessary to unfold the device, the reverse operation can be performed.

[0027] Specifically, the buckle assembly includes a plastic buckle 10, which is rotatably connected to the circumferential surface of the second support column 3. A circular groove 12 is drilled on the circumferential surface of the first support column 101, and a steel column 13 is slidably connected in the circular groove 12. A spring 11 is fixedly connected between the steel column 13 and the inner wall of the first support column 101.

[0028] During operation, when it is necessary to close the connection between the canvas traction rope 7 and the first support column 101 of the flap mechanism, rotate the plastic buckle 10. The plastic buckle 10 is made of plastic and has elasticity, so the plastic buckle 10 can be put on the first support column 101. The plastic buckle 10 squeezes the steel column 13 into the circular groove 12, so that the steel column 13 is stuck in the plastic buckle 10, thereby avoiding accidental separation of the plastic buckle 10 from the first support column 101. When it is necessary to open the flap mechanism, just rotate the plastic buckle 10 from the first support column 101 with force to remove it.

[0029] Working principle of this utility model:

[0030] When the device is not needed and needs to be folded and stored, the n-shaped limit plate 9 is held and pulled upward to drive the two ninth rotating rods 8 to rotate, so that the two front connecting plates 1 are brought closer to the two rear connecting plates 1, and then the folding side limit mechanism, the bottom limit mechanism and the flap limit mechanism are folded to realize the folding and storage of the device. When the device needs to be unfolded and used, the n-shaped limit plate 9 is pressed downward to drive the two ninth rotating rods 8 to rotate and unfold. When the two ninth rotating rods 8 are in a straight line, the upper end surfaces of the two ninth rotating rods 8 are It rests on the upper inner wall of the N-shaped limiting plate 9, so the two ninth rotating rods 8 cannot continue to rotate, and then the device can be unfolded and used by unfolding the side limiting mechanism, the bottom limiting mechanism and the flap limiting mechanism. When the goods are placed in the canvas of the device, since the two ninth rotating rods 8 and the N-shaped limiting plate 9 are supported between the flap and the frame, the goods can be supported by the two ninth rotating rods 8 and the N-shaped limiting plate 9, and the canvas in the hollow area can be supported, which is beneficial to prevent the canvas from being pulled down and deformed due to the excessive weight of the goods so that it is separated from the frame.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the specification only describe the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A folding structure for a gathering trolley flap, comprising four connecting plates (1), characterized in that: A side limiting mechanism is arranged on the upper side of the four connecting plates (1), and the side limiting mechanism is used to limit the goods on the trolley in three directions: front, back, left, and right. A bottom supporting mechanism is arranged between the four connecting plates (1), and the bottom supporting mechanism is used to support the goods on the trolley. A flap mechanism is arranged on the right side of the two right connecting plates (1), and the flap mechanism is used to open and close the right part of the limited trolley. The adjacent end surfaces of the two right connecting plates (1) are both rotatably hinged with a ninth rotating rod (8), and an n-shaped limiting plate (9) is rotatably hinged between the two ninth rotating rods (8), and the two ninth rotating rods (8) are both limited at the lower side of the n-shaped limiting plate (9).

2. The flap folding structure of the gathering trolley according to claim 1 is characterized in that: The side limiting mechanism comprises four first support columns (101), the four first support columns (101) are respectively fixedly connected to the upper end surfaces of four connecting plates (1), the upper end surfaces of the two connecting plates (1) on the left are fixedly connected to the second connecting blocks (106), the upper end surfaces of the two first support columns (101) on the right are fixedly connected to the first connecting blocks (102), the two first connecting blocks (102) and the two second connecting blocks (106) are rotatably hinged to the first rotating rods (103), the four first rotating rods (103) are rotatably connected to the second rotating rods (104), the two second rotating rods (104) on the front side and the two second rotating rods (104) on the rear side are fixedly connected to the first rotating rods (104), and the first rotating rods (104) on the front side and the second rotating rods (104) on the rear side are fixedly connected to the first rotating rods (102). 4) are hinged to each other, the four connecting plates (1) are all rotatably hinged to a third rotating rod (105), the two third rotating rods (105) on the front side and the two third rotating rods (105) on the rear side are all hinged to each other, the four second rotating rods (104) are respectively rotatably hinged to the middle parts of the four third rotating rods (105), the two second connecting blocks (106) are each rotatably hinged to a fourth rotating rod (107), the other ends of the two fourth rotating rods (107) are each rotatably hinged to a fifth rotating rod (108), the other ends of the two fifth rotating rods (108) are respectively rotatably hinged to the two connecting plates (1) on the left side, and the middle parts of the two fifth rotating rods (108) are hinged to each other.

3. The flap folding structure of the gathering trolley according to claim 1 is characterized in that: The bottom support mechanism comprises a third connecting block (1010), the lower end surface of the third connecting block (1010) being rotatably hinged with four sixth rotating rods (109), and the four sixth rotating rods (109) are all located at the lower side of the third connecting block (1010), and the four sixth rotating rods (109) are respectively rotatably hinged on four connecting plates (1).

4. The flap folding structure of the gathering trolley according to claim 2, characterized in that: The flap mechanism comprises two fourth connecting blocks (2), the two fourth connecting blocks (2) are respectively rotated on the right end faces of the two right connecting plates (1) through hinges, the right end faces of the two fourth connecting blocks (2) are fixedly connected to the second support columns (3), the right end faces of the two second support columns (3) are fixedly connected to the fifth connecting blocks (4), the two fifth connecting blocks (4) are rotatably hinged with a seventh rotating rod (5), the other ends of the two seventh rotating rods (5) are rotatably hinged with an eighth rotating rod (6), and the two eighth rotating rods (6) are fixedly connected to the second support columns (3). The rods (6) are respectively rotatably hinged on the two right connecting plates (1), and the middle parts of the two eighth rotating rods (6) are hinged to each other. The circumferential surfaces of the two second supporting columns (3) are fixedly connected with canvas traction ropes (7), and the other ends of the two canvas traction ropes (7) are respectively fixedly connected to the two first supporting columns (101) on the right side. Buckle assemblies are provided between the two second supporting columns (3) and the two first supporting columns (101) on the right side, and the buckle assemblies are used to fix the positions of the second supporting columns (3) and the connecting plate (1).

5. The flap folding structure of the gathering trolley according to claim 4, characterized in that: The buckle assembly comprises a plastic buckle (10), wherein the plastic buckle (10) is rotatably connected to the circumferential surface of the second support column (3), a circular groove (12) is cut on the circumferential surface of the first support column (101), a steel column (13) is slidably connected in the circular groove (12), and a spring (11) is fixedly connected between the steel column (13) and the inner wall of the first support column (101).

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