Side face folding mechanism of folding trailer

Abstract

The utility model relates to a side face folding mechanism of a folding trailer. The side face folding mechanism comprises a pair of telescopic stand columns and a folding assembly arranged between the two telescopic stand columns. The telescopic stand column comprises a fixed vertical rod and a lifting rod, and the lifting rod is arranged on the fixed vertical rod in a sliding mode. The two sides of the folding assembly are each provided with a linkage end and a fixed end, the linkage ends are hinged to the lifting rods, and the fixed ends are hinged to the fixed vertical rods. When the folding assembly is folded, the two telescopic stand columns get close to each other, and the linkage end can drive the top end of the lifting rod to get close to the top end of the fixed vertical rod. When the folding assembly is unfolded, the two telescopic stand columns are far away from each other, and the linkage end can drive the top end of the lifting rod to be far away from the top end of the fixed vertical rod. In the folding process of the side face folding mechanism, the linkage end on the folding assembly is used for driving the lifting rod to reduce the height, the height of the telescopic stand column is reduced, the occupied space is small, and carrying and transportation are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of folding trailers, in particular to a side folding mechanism of a folding trailer. Background Art

[0002] In daily life and production, it is often necessary to carry luggage or items, etc. During the carrying process, trailer tools are often used. Due to the characteristics of being convenient to push, time-saving and labor-saving, trailer tools are widely used when carrying things. In order to facilitate the storage of trailer tools, the trailer tools are designed into a foldable structure, which is very light. After folding, it can be placed on the vehicle, making it convenient to carry.

[0003] However, the existing folding trailers generally include four upright columns arranged in a rectangle, and a folding mechanism is arranged between any two adjacent upright columns. When the folding trailer is folded or unfolded, the column connection part of the folding mechanism slides along the upright column to achieve folding. After the folding mechanism on the existing folding trailer is folded, the height of the folding mechanism will not decrease, which results in a large occupied area when the trailer is stored. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a side folding mechanism of a folding trailer, which solves the problem that the height of the folding mechanism will not decrease when the folding trailer is in a folded state.

[0006] (2) Technical Solutions

[0007] In order to achieve the above object, the utility model provides a side folding mechanism of a folding trailer, and the side folding mechanism includes: a pair of telescopic upright columns and a folding assembly arranged between the two telescopic upright columns;

[0008] The telescopic upright column includes a fixed vertical rod and a lifting rod, and the lifting rod is slidably arranged on the fixed vertical rod;

[0009] Both sides of the folding assembly are provided with a linkage end and a fixed end, the linkage end is hinged to the lifting rod, and the fixed end is hinged to the fixed vertical rod;

[0010] When the folding assembly is folded, the two telescopic upright columns approach each other, and the linkage end can drive the top end of the lifting rod to approach the top end of the fixed vertical rod;

[0011] When the folding assembly is unfolded, the two telescopic upright columns move away from each other, and the linkage end can drive the top end of the lifting rod to move away from the top end of the fixed vertical rod.

[0012] Preferably, a linkage sliding sleeve is included on the lifting rod. The linkage end is hinged to the linkage sliding sleeve, and the linkage sliding sleeve is slidably arranged on the fixed vertical rod. The top of the fixed vertical rod includes an apex fixing member, and the fixed end is hinged to the apex fixing member.

[0013] During the folding process of the folding assembly, the linkage end hinged to the linkage sliding sleeve drives the lifting rod to move downward through the linkage sliding sleeve.

[0014] During the unfolding process of the folding assembly, the linkage end hinged to the linkage sliding sleeve drives the lifting rod to move upward through the linkage sliding sleeve.

[0015] Preferably, the lifting rod is located outside the fixed vertical rod. The lifting rod slidably passes through the apex fixing member, and the lifting rod is connected to the linkage sliding sleeve. During the up and down movement of the lifting rod, the apex fixing member provides lateral limitation to the lifting rod.

[0016] Preferably, the fixed vertical rod is of a hollow structure. The lifting rod is slidably sleeved inside the fixed vertical rod. A vertical strip-shaped hole is penetrated through the rod wall of the fixed vertical rod. The lifting rod horizontally extends a connecting member through the strip-shaped hole to connect the linkage sliding sleeve. During the up and down movement of the lifting rod, the fixed vertical rod provides lateral limitation to the lifting rod.

[0017] Preferably, a vertical groove is formed in the fixed vertical rod. The lifting rod is slidably located in the vertical groove. The lifting rod passes through the vertical groove to connect the linkage sliding sleeve. During the up and down movement of the lifting rod, the vertical groove provides lateral limitation to the lifting rod.

[0018] Preferably, the folding assembly includes: a plurality of sequentially hinged X-shaped rod groups. The X-shaped rod group includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are hinged in the middle.

[0019] Among any two adjacent X-shaped rod groups: the second end of the first connecting rod in one X-shaped rod group is hinged to the first end of the second connecting rod in another X-shaped rod group, and the second end of the second connecting rod in one X-shaped rod group is hinged to the first end of the first connecting rod in another X-shaped rod group.

[0020] In the side folding mechanism, the first end of the first connecting rod in the X-shaped rod group at the head end constitutes the fixed end, and the first end of the second connecting rod in the X-shaped rod group at the head end constitutes the linkage end; the second end of the first connecting rod in the X-shaped rod group at the tail end constitutes the linkage end, and the second end of the second connecting rod in the X-shaped rod group at the tail end constitutes the fixed end.

[0021] In one of the X-shaped rod groups, the first ends of the first link and the second link are on the same side.

[0022] Preferably, the folding assembly includes two X-shaped rod groups.

[0023] Preferably, a top plate is provided at the top of the lifting rod.

[0024] (III) Beneficial effects

[0025] In the present utility model, the telescopic column is arranged as two fixed vertical rods and a lifting rod that can slide relative to each other. During the folding or unfolding process of the folding assembly, the linkage end on the folding assembly drives the lifting rod to lower or raise the height. During the folding process of the side folding mechanism, the height of the telescopic column decreases, occupying less space and being convenient for carrying and transportation. Description of the drawings

[0026] Figure 1 is a schematic structural diagram of a side folding mechanism of the folding trailer of the present utility model;

[0027] Figure 2 is another schematic structural diagram of the side folding mechanism of the folding trailer of the present utility model.

[0028]

Description of the reference numerals

[0029] 10: Telescopic column; 101: Fixed vertical rod; 102: Lifting rod; 103: Linkage sliding sleeve; 104: Apex fixing part; 105: Strip-shaped hole; 106: Top plate;

[0030] 20: Folding assembly; 201: Linkage end; 202: Fixed end; 203: X-shaped rod group; 203-1: First link; 203-2: Second link. Detailed implementation manners

[0031] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below with reference to the drawings through specific implementation manners.

[0032] Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present utility model and to be able to fully convey the scope of the present utility model to those skilled in the art.

[0033] Such as Figure 1 and Figure 2As shown in the figure, the present utility model provides a side folding mechanism for a folding trailer, including: a pair of telescopic columns 10 and a folding assembly 20 arranged between the two telescopic columns 10. The telescopic column 10 includes a fixed vertical rod 101 and a lifting rod 102, and the lifting rod 102 is slidably arranged on the fixed vertical rod 101. Linkage ends 201 and fixed ends 202 are arranged on both sides of the folding assembly 20. The linkage end 201 is hinged to the lifting rod 102, and the fixed end 202 is hinged to the fixed vertical rod 101. When the folding assembly 20 folds, the two telescopic columns 10 approach each other, and the linkage end 201 can drive the top end of the lifting rod 102 to approach the top end of the fixed vertical rod 101. When the folding assembly 20 unfolds, the two telescopic columns 10 move away from each other, and the linkage end 201 can drive the top end of the lifting rod 102 to move away from the top end of the fixed vertical rod 101.

[0034] In the present utility model, the telescopic column 10 is set as two relatively slidable fixed vertical rods 101 and lifting rods 102. During the folding or unfolding process of the folding assembly 20, the linkage end 201 on the folding assembly 20 drives the lifting rod 102 to lower or raise the height. During the folding process of the side folding mechanism, the height of the telescopic column 10 decreases, occupying less space and being convenient for carrying and transporting. During the actual use process, generally four telescopic columns 10 arranged in a rectangle are provided on the trailer, and the side folding mechanism in the present utility model is arranged between any two adjacent telescopic columns 10, that is, generally four side folding mechanisms (two pairs of oppositely arranged side folding mechanisms) are provided on a trailer. A cloth bag is provided on the trailer, and the four corners of the cloth bag are connected to the top of the lifting rod 102. During the unfolding process of the side folding mechanism, the top end of the lifting rod 102 moves away from the top end of the fixed vertical rod 101, and the height of the telescopic column 10 increases, which increases the accommodation space of the trailer after unfolding.

[0035] Further, the lifting rod 102 is provided with a linkage sliding sleeve 103, the linkage end 201 is hinged to the linkage sliding sleeve 103, and the linkage sliding sleeve 103 is slidably arranged on the fixed vertical rod 101; the top of the fixed vertical rod 101 is provided with a top angle fixing part 104, and the fixed end 202 is hinged to the top angle fixing part 104. During the folding process of the folding assembly 20, the linkage end 201 hinged to the linkage sliding sleeve 103 drives the lifting rod 102 to move downward through the linkage sliding sleeve 103. During the unfolding process of the folding assembly 20, the linkage end 201 hinged to the linkage sliding sleeve 103 drives the lifting rod 102 to move upward through the linkage sliding sleeve 103.

[0036] A linkage sliding sleeve 103 and a top angle fixing member 104 are respectively arranged on the lifting rod 102 and the fixed vertical rod 101, and the sliding between the lifting rod 102 and the fixed vertical rod 101 can be carried out smoothly. In a preferred embodiment, a through hole for the lifting rod 102 to pass through can be further arranged on the top angle fixing member 104, and the linkage sliding sleeve 103 can be sleeved on the fixed vertical rod 101. The linkage sliding sleeve 103 can slide on the fixed vertical rod 101. At this time, both the top angle fixing member 104 and the linkage sliding sleeve 103 can play a guiding role in the movement of the lifting rod 102. In addition, the top angle fixing member 104 can also play a limiting role in the displacement of the linkage sliding sleeve 103 on the fixed vertical rod 101, avoiding the linkage sliding sleeve 103 from sliding out of the fixed vertical rod 101.

[0037] Furthermore, the structural form of the telescopic column 10 can be the following two types:

[0038] The first type, as Figure 1 shown, the lifting rod 102 is located outside the fixed vertical rod 101. The lifting rod 102 slides through the top angle fixing member 104. The lifting rod 102 is connected to the linkage sliding sleeve 103. During the up and down movement of the lifting rod 102, the top angle fixing member 104 constitutes a lateral limit for the lifting rod 102.

[0039] The second type, as Figure 2 shown, the fixed vertical rod 101 is a hollow structure. The lifting rod 102 is slidably sleeved inside the fixed vertical rod 101. A vertical strip hole 105 is penetrated through the rod wall of the fixed vertical rod 101. The lifting rod 102 horizontally extends out of the connecting piece and passes through the strip hole 105 to connect the linkage sliding sleeve 103. The connecting piece includes rivets, bolts, etc., as long as the lifting rod 102 can be detachably connected to the linkage sliding sleeve 103 on the fixed vertical rod 101 through the strip hole 105, which is not limited here. During the up and down movement of the lifting rod 102, the fixed vertical rod 101 constitutes a lateral limit for the lifting rod 102.

[0040] In addition, the folding component 20 includes: a plurality of X-shaped rod groups 203 hinged in sequence, the X-shaped rod group 203 includes a first link 203-1 and a second link 203-2, the first link 203-1 and the second link 203-2 are hinged in the middle (here, the first link 203-1 and the second link 203-2 are hinged in the middle, and it is not limited to the hinge point being at the midpoint of the first link 203-1 and the second link 203-2. It should be understood that the hinge point is between the two ends of the first link 203-1 and the second link 203-2, and the position of the hinge point on the first link 203-1 and the second link 203-2 can be adjusted according to actual usage). In any two adjacent X-shaped rod groups 203: the second end of the first link 203-1 in one X-shaped rod group 203 is hinged to the first end of the second link 203-2 in the other X-shaped rod group 203, and the second end of the second link 203-2 in one X-shaped rod group 203 is hinged to the first end of the first link 203-1 in the other X-shaped rod group 203. In the side folding mechanism, the first end of the first link 203-1 in the X-shaped rod group 203 at the head end constitutes the fixed end 202, and the first end of the second link 203-2 in the X-shaped rod group 203 at the head end constitutes the linkage end 201; the second end of the first link 203-1 in the X-shaped rod group 203 at the tail end constitutes the linkage end 201, and the second end of the second link 203-2 in the X-shaped rod group 203 at the tail end constitutes the fixed end 202. In an X-shaped rod group 203, the first end of the first link 203-1 and the first end of the second link 203-2 are located on the same side. In the present application, the first end and the second end of the first link 203-1 are two opposite ends of the first link 203-1, and the same is true for the first end and the second end of the second link 203-2. In addition, the linkage end 201 and the fixed end 202 in the present application refer to the parts close to the ends of the first link 203-1 and the second link 203-2.

[0041] In a preferred embodiment, Figure 1 As shown, the folding assembly 10 includes two hinged X-shaped rod sets.

[0042] Finally, a top plate 106 is provided on the top of the lifting rod 102. The top plate 106 can limit the movement of the lifting rod 102 on the fixed vertical rod 101, and can also be used to install a cloth bag on the trailer.

[0043] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly defined and limited, when the first feature is "on" or "under" the second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when the first feature is "above", "over" and "on top of" the second feature, it may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. When the first feature is "under", "beneath" and "underneath" the second feature, it may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0046] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0047] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A side folding mechanism for a folding trailer, characterized in that: The side folding mechanism comprises: a pair of telescopic columns (10) and a folding assembly (20) arranged between the two telescopic columns (10); The telescopic column (10) comprises a fixed vertical rod (101) and a lifting rod (102), wherein the lifting rod (102) is slidably arranged on the fixed vertical rod (101); Both sides of the folding component (20) are provided with a linkage end (201) and a fixed end (202), the linkage end (201) is hinged to the lifting rod (102), and the fixed end (202) is hinged to the fixed vertical rod (101); When the folding assembly (20) is folded, the two telescopic columns (10) are moved closer to each other, and the linkage end (201) can drive the top end of the lifting rod (102) to move closer to the top end of the fixed vertical rod (101); When the folding assembly (20) is unfolded, the two telescopic columns (10) move away from each other, and the linkage end (201) can drive the top end of the lifting rod (102) to move away from the top end of the fixed vertical rod (101).

2. The side folding mechanism of the folding trailer according to claim 1, characterized in that: The lifting rod (102) includes a linkage sleeve (103), the linkage end (201) is hinged to the linkage sleeve (103), and the linkage sleeve (103) is slidably arranged on the fixed vertical rod (101); the top of the fixed vertical rod (101) includes a top angle fixing piece (104), and the fixed end (202) is hinged to the top angle fixing piece (104); During the folding process of the folding assembly (20), the linkage end (201) hinged to the linkage sliding sleeve (103) drives the lifting rod (102) to move downward through the linkage sliding sleeve (103); During the unfolding process of the folding assembly (20), the linkage end (201) hinged to the linkage sliding sleeve (103) drives the lifting rod (102) to move upwards via the linkage sliding sleeve (103).

3. The side folding mechanism of the folding trailer according to claim 2, characterized in that: The lifting rod (102) is located outside the fixed vertical rod (101), and the lifting rod (102) slides through the top corner fixing piece (104). The lifting rod (102) is connected to the linkage sliding sleeve (103). When the lifting rod (102) moves up and down, the top corner fixing piece (104) forms a lateral limit for the lifting rod (102).

4. The side folding mechanism of the folding trailer according to claim 2, characterized in that: The fixed vertical rod (101) is a hollow structure, and the lifting rod (102) is slidably sleeved in the fixed vertical rod (101). A vertical strip hole (105) is penetrated through the rod wall of the fixed vertical rod (101). The lifting rod (102) extends horizontally through a connecting piece that passes through the strip hole (105) and is connected to the linkage sliding sleeve (103). When the lifting rod (102) moves up and down, the fixed vertical rod (101) constitutes a lateral limit for the lifting rod (102).

5. The side folding mechanism of the folding trailer according to any one of claims 1 to 4, characterized in that: The folding assembly (20) comprises: a plurality of X-shaped rod groups (203) hinged in sequence, the X-shaped rod group (203) comprising a first connecting rod (203-1) and a second connecting rod (203-2), the first connecting rod (203-1) and the second connecting rod (203-2) being hinged in the middle; In any two adjacent X-shaped rod groups (203): the second end of the first connecting rod (203-1) in one X-shaped rod group (203) is hinged to the first end of the second connecting rod (203-2) in the other X-shaped rod group (203), and the second end of the second connecting rod (203-2) in one X-shaped rod group (203) is hinged to the first end of the first connecting rod (203-1) in the other X-shaped rod group (203); In the side folding mechanism, the first end of the first connecting rod (203-1) in the X-shaped rod group (203) located at the head end constitutes the fixed end (202), and the first end of the second connecting rod (203-2) in the X-shaped rod group (203) located at the head end constitutes the linkage end (201); the second end of the first connecting rod (203-1) in the X-shaped rod group (203) located at the tail end constitutes the linkage end (201), and the second end of the second connecting rod (203-2) in the X-shaped rod group (203) located at the tail end constitutes the fixed end (202); In one of the X-shaped rod groups (203), the first end of the first connecting rod (203-1) and the first end of the second connecting rod (203-2) are located on the same side.

6. The side folding mechanism of the folding trailer according to claim 5, characterized in that: The folding assembly includes two X-shaped rod groups.

7. The side folding mechanism of the folding trailer according to any one of claims 1 to 4, characterized in that: A top plate (106) is provided on the top of the lifting rod (102).

Images