Device for connecting and fixing a trailer body frame to a soft-bodied vehicle compartment, and trailer

Abstract

A trailer is provided, as well as a connecting and fixing device for connecting a trailer body frame to a soft-bodied cabin. [Solution] The connecting and fixing device includes an upper connecting seat 3, an edge, a pressing block 5, and a fixing structure 6. The upper connecting seat is installed on the vehicle body frame, and the edge is located in the soft body compartment 2, with a differential thickness structure and a thickened portion and an abutting portion. The fixing structure fixedly connects the pressing block and the upper connecting seat, allowing the pressing block and the upper connecting seat to clamp the edge, forming a mixing space between the pressing block and the upper connecting seat, with the thickened portion of the edge located within the mixing space and the abutting portion abutting against the fixing structure or the outward position limiting portion of the mixing space. This has the advantages of strong fixing, improving the strength of the soft body compartment, improving production efficiency, saving production costs, and creating economic benefits.

Description

[Technical Field]

[0001] The present invention relates to the technical field of trailers, and more particularly to a trailer and a device for fastening a trailer body frame to a soft-bodied cabin. [Background technology]

[0002] 1 and 2, a conventional trailer body frame and soft-body compartment connection and fastening device generally involves punching a large hole A1 in the edge of the soft-body compartment, attaching a circular eyelet A2 or sewing a reinforcing block with a hole, and then passing a screw A3 through the upper connecting seat A4 and the eyelet A2 from bottom to top, and locking it with a nut A5 to achieve fastening. This fastening device is relatively complicated and has relatively high production costs. In addition, because a large hole must be drilled in the soft-body compartment to attach the eyelet A2 or reinforcing block, the connection strength of the soft-body compartment is weakened. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE INVENTION The present invention provides a trailer and a trailer body frame coupling and fastening device for a soft-bodied vehicle compartment, which overcomes the drawbacks of the prior art. [Means for solving the problem]

[0004] The first technical form adopted to solve the problem of the present invention is a connecting and fixing device between a trailer body frame and a soft-bodied cabin, an upper connecting seat provided on the body frame; an edge portion located in the soft-body compartment, corresponding to and provided on the upper connecting seat, having a thickness difference structure and including a thick portion and an inward abutment portion formed by the thick portion; a fixing structure including a pressing block provided with an upper through-hole and a fixing member, However, the pressing block is provided on the edge, the fixing member passes through the upper through-hole and edge of the pressing block to be assembled with the upper connecting seat, the fixing structure fixes and connects the pressing block and the upper connecting seat, and the pressing block and the upper connecting seat clamp the edge; a blending space is formed between the pressing block and the upper connecting seat, the thickened part of the edge is located within the blending space, and the abutting part can abut against the outward position limiting part of the fixing structure or the blending space.

[0005] A lower groove having an outward first groove wall is recessed in the top surface of the upper connecting seat, the thickened portion is at least partially located within the lower groove, the position limiting portion includes the first groove wall, and the abutting portion of the edge portion can abut against the position limiting portion.

[0006] The lower groove extends to the outer surface of the upper connecting seat, and an outer surrounding wall extends downward from the outer side of the pressing block. The outer surrounding wall is located outside the upper connecting seat and surrounds at least the lower groove.

[0007] An upper groove having an outward second groove wall is recessed in the bottom surface of the pressing block, the thick-walled portion is at least partially located within the upper groove, the position limiting portion includes the second groove wall, and the abutting portion of the edge portion can abut against the position limiting portion.

[0008] The top surface of the upper connecting seat is recessed with a lower groove having an outward first groove wall, and the bottom surface of the pressing block is recessed with an upper groove having an outward second groove wall; the thickened portions are located in the upper and lower grooves; the position limiting portion includes at least one of the first groove wall and the second groove wall, and the abutting portion of the edge portion can abut against the position limiting portion.

[0009] The upper connecting seat has a lower connecting hole, and the fixing member is fixedly connected to the lower connecting hole through the upper through-hole and the edge; the top surface of the upper connecting seat has a lower groove that extends to the lower connecting hole, and the thick portion is at least partially located within the lower groove; the abutting portion of the edge can abut against the fixing member.

[0010] The bottom surface of the pressing block has an upper groove formed therein, the upper groove extending to the upper through-hole, and the thickened portion is at least partially located within the upper groove; the abutment portion of the edge can abut against the fixing member.

[0011] The thick portion includes an edge cover provided on the periphery of the soft-body casing, and the edge cover has a layer portion superimposed on the surface of the edge portion, and the inward side surface of the layer portion forms the abutment portion.

[0012] Furthermore, a fixing nail is arranged to fix and connect the edge portion and the layer portion, and a third groove is provided in the mixing space to mix the end of the fixing nail, and the end of the fixing nail is located in the third groove; the edge cover has two layer portions respectively overlapped on the top and bottom surfaces of the edge portion.

[0013] The fixing member is located outside the blending space.

[0014] The upper through-hole is a stepped hole that is larger at the top and smaller at the bottom, and a press lid is further disposed from top to bottom to cover the upper through-hole.

[0015] A second technical form for solving the problem of the present invention is a trailer having a trailer body frame and a soft-body compartment connection and fixing device. [Effects of the Invention]

[0016] The technical form of the present invention has the following advantages over the background art: The edges secure the body frame and the flexible casing by "clamping the pressure block and upper connecting seat" and "the abutment of the thickened part abutting the position limiting part or fixing structure of the fitting space," achieving a double fixation of "clamping" and "abutment." Clamping the edges eliminates the space for the thickened part to enter the clamping area, ensuring that "the abutment part always abuts the position limiting part," resulting in a strong fixation. There is no need to drill large holes in the edges or install eyelets, which reinforces the strength of the flexible casing, distributes force evenly on the connecting structure, improves appearance, reduces the amount of sewing work for the flexible casing during production, improves production efficiency, saves production costs, and creates economic benefits. [Brief explanation of the drawings]

[0017] The present invention will be described below with reference to the drawings and a description of the preferred embodiment of the invention. [Figure 1] FIG. 1 is a schematic perspective view of a background art fixation device. [Figure 2] FIG. 1 is an exploded perspective view of a background art fixation device. [Figure 3] 1 is a schematic perspective view of a trailer according to an embodiment. [Figure 4] FIG. 1 is a schematic partially exploded perspective view of a trailer according to an embodiment. [Figure 5] FIG. 2 is a schematic perspective view of a vehicle body frame of the trailer according to the embodiment. [Figure 6] FIG. 2 is a partially exploded perspective view of a body frame of the trailer according to the embodiment. [Figure 7] FIG. 2 is a schematic perspective view of a soft-bodied cabin of the trailer according to the embodiment. [Figure 8] FIG. 2 is an exploded perspective view of the fixing device according to the first embodiment. [Figure 9] 1 is a schematic cross-sectional view of a fixing device according to a first embodiment. [Figure 10] FIG. 10 is an exploded perspective view of a fixing device according to a second embodiment. [Figure 11] FIG. 10 is a schematic cross-sectional view of a fixing device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] As shown in Figures 3 to 7, the trailer includes a body frame 1 and a flexible cabin 2. The body frame 1 has two rows of pillars 11 spaced apart from one another and two radial mechanisms; each row of pillars 11 includes three pillars 11 spaced apart from one another in the front and rear. The pillars 11 are telescopic pipes, with upper connecting seats 3 fixed to the upper ends of the pillars 11 and lower connecting seats 12 fixed to the lower ends. The distance between the upper connecting seats 3 and the lower connecting seats 12 varies according to the telescopic pipe extension and contraction; a first clamp is formed between the upper connecting seats 3 and the lower connecting seats 12 of each pair of adjacent pillars 11 in each row. A second pincer mechanism 14 is connected between the upper connecting seats 3 and lower connecting seats 12 of the two rows of pillars 11 located at the front and rear; the lower connecting seats 12 of the six pillars 11 are arranged in two adjacent rectangles, each of which is connected to the above-mentioned radial mechanism. The radial mechanism includes a base 15 and four bottom bars 16, one end of which is rotatably connected to the base 15 and the other end of which is rotatably connected to one of the four lower connecting seats 12 surrounding the rectangle. A roller 17 is further provided below the body frame 1; the front second pincer mechanism 14 is further provided with a handle 18. The soft-body compartment 2 includes a bottom wall 21 and a peripheral wall 22 extending upward from the outer periphery of the bottom wall, the upper peripheral edge of which extends outward to form a peripheral edge 23.

[0019] First embodiment As shown in FIGS. 3 to 9, the device for connecting and fixing the trailer body frame 1 and the soft-bodied compartment 2 includes an upper connecting seat 3, an edge portion 4, a pressing block 5, and a fixing structure 6.

[0020] The peripheral edge 23 of the soft body compartment 2 has the edge portion 4, which has a thickness-varying structure and a thick portion and an inward abutment portion 41 formed by the thick portion. In this embodiment, the thick portion includes an edge cover 42 fixed to the peripheral edge 23. The edge cover 42 has two layers respectively overlapping the top and bottom of the peripheral edge 4, with the inward side of the layer forming the abutment portion 41. The edge cover 42 is, for example, a sheet-like structure made of a rubber material, which is folded in half and fixed around the peripheral edge 23 to form the edge cover. For example, the edge portion 4 and the layer are fixed and connected by fixing nails. If necessary, the edge cover may have only a single layer, or the thick portion may be formed by directly folding the peripheral edge 23 and sewing it. If the edge portion 4 corresponds to the upper connecting seat 3, the edge portion 4 is attached to the upper connecting seat 3.

[0021] The pressing block 5 is mounted on the edge 4, and the fixing structure 6 fixes and connects the pressing block 5 and the upper connecting seat 3, so that the pressing block 5 and the upper connecting seat 3 clamp the edge 4; a blending space 7 is formed between the pressing block 5 and the upper connecting seat 3, and the thickened part of the edge 4 is located within the blending space 7, and the abutment part 41 can abut against the outward position limiting part of the blending space 7. First, the edge 4 fixes the body frame 1 and the soft-body compartment 2 by "clamping the pressing block 5 and the upper connecting seat 3" and "the abutment part 41 of the thickened part abuts against the position limiting part of the blending space 7", realizing a double fixation of "clamping" and "abutment". Clamping the edge 4 eliminates the space for the thickened part to enter the clamping part, ensuring that "the abutment part 41 always abuts against the position limiting part", resulting in a strong fixation. Second, there is no need to drill large holes in the edge 4, and no need to attach eyelets, which reinforces the strength of the flexible casing 2, distributes force evenly across the connecting structure, creates a beautiful appearance, reduces the amount of sewing work required for the flexible casing during production, improves production efficiency, saves production costs, and creates economic benefits. Third, there is no need to pre-drill holes in the flexible casing 2 during the processing process (for example, the flexible casing 2 can be directly pierced with a fixing member), which improves production efficiency, saves production costs, and creates economic benefits. Fourth, the thickened portion or edge cover reinforces the strength of the edge and prevents the thickened portion from tearing.

[0022] A lower groove 31 is recessed in the top surface of the upper connecting base 3, the lower groove 31 reaching the outer surface of the upper connecting base 3, the lower groove 31 having an outward-facing first groove wall 32, and the lower part of the edge cover 42 being located within the lower groove 31; an upper groove 51 is recessed in the bottom surface of the pressing block 5, the upper groove 51 having an outward-facing second groove wall 52, and the upper part of the edge cover 42 being located within the upper groove 51; the position limiting part includes at least one of the first groove wall 32 and the second groove wall 52. Not only is the structure simple and capable of accommodating thick parts, but the groove wall also constitutes the position limiting part, resulting in a simple structure and easy assembly. An outer surrounding wall extends downward from the outside of the pressing block 5. The outer surrounding wall is located outside the upper connecting seat and surrounds at least the upper groove 51 and the lower groove 31, which has a beautiful appearance and prevents the user from being pinched and injured, thereby providing high safety performance.

[0023] The fixing structure 6 includes a fixing member 61, an upper through-hole 54 formed in the pressing block 5, a lower connecting hole 33 formed in the upper connecting seat 3, the fixing member 61 passing through the upper through-hole 54 and fixedly connected to the lower connecting hole 33 of the upper connecting seat 3, resulting in a simple structure and easy assembly. The fixing member 61 is located outside the mixing space 7 to reinforce the connection. In specific terms, the fixing member 61 is a screw that passes through the pressing block 5 and the rim 4 from top to bottom and is threaded into the lower connecting hole 33 of the upper connecting seat 3 (if necessary, the lower connecting hole 33 may be provided with an internal thread, which may be directly provided in the lower connecting hole 33 or a nut may be pre-mounted in the lower connecting hole 33). This eliminates the need for pre-drilling and allows the screw to be directly threaded into the rim 4, and the screw is a self-tapping screw. The upper through-hole 54 is a stepped hole that is larger at the top and smaller at the bottom, and a press-fit cover 55 is arranged from top to bottom to cover the upper through-hole 54, providing a beautiful appearance and high safety. If necessary, the fixing member may be a bolt, and a nut may be further arranged, and the fixing member and upper connecting seat are assembled by screwing the bolt and nut together.

[0024] The blending space 7 is provided with a third groove that blends with the end of the fixing nail (the layer that fixedly connects the edge portion 4 and the edge cover 42), and by providing the third groove at the bottom of the lower groove 31, the fixed connection between the body frame 1 and the soft-body compartment 2 can be reinforced by blending the third groove with the fixing nail.

[0025] In this embodiment, the upper connecting seat 3 is a corner connecting seat located at a corner of the body frame 1 .

[0026] Second embodiment 3 to 7, 10 and 11, the difference from the first embodiment is that the lower groove 31 leads to the lower connecting hole 33, and the upper groove 51 leads to the upper through-hole 54, so that the abutment portion 41 of the edge portion 4 can abut against the fixing member 61, and the fixed connection is strong and stable. The upper connecting seat 3 is an intermediate upper connecting seat located in the middle of the body frame 1.

[0027] The above description is merely a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited thereby. In other words, any equivalent changes and modifications based on the scope of the utility model registration claims and the content of the specification of the present invention should be included within the protection scope of the present invention. [Explanation of symbols]

[0028] 1 Body frame 11 Pillar 12 Lower connection seat 13 First scissors mechanism 14 Second scissors mechanism 15 base 16 Bottom Bar 17 Laura 18 Handle 2 Soft Car Cabin 21 Bottom wall 22 Peripheral wall 23 Periphery 3 Upper connection seat 31 Lower groove 32 First trench wall 33 Lower connection hole 4 Edge 41 Contact part 42 Edge cover 5 Pressing Block 51 Upper groove 2 Second groove wall 5 53 Outer enclosing wall 54 Upper through hole 55 Pressurized lid 6 Fixed structure 61 Fixing member 7 Formulation space

Claims

1. A device for connecting and fixing a trailer body frame to a soft-body cabin, an upper connecting seat provided on the body frame; an edge portion located in the soft-body compartment, corresponding to and provided on the upper connecting seat, having a thickness difference structure and including a thick portion and an inward abutment portion formed by the thick portion; a fixing structure including a pressing block provided with an upper through-hole and a fixing member, However, the pressing block is provided on the edge, the fixing member passes through the upper through-hole and edge of the pressing block to be assembled with the upper connecting seat, the fixing structure fixedly connects the pressing block and the upper connecting seat so that the pressing block and the upper connecting seat clamp the edge; a mixing space is formed between the pressing block and the upper connecting seat, the thickened part of the edge is located within the mixing space, and the abutting part can abut against the outward position limiting part of the fixing structure or the mixing space.

2. 2. The device for connecting and fixing a trailer body frame to a soft-bodied cabin according to claim 1, wherein a lower groove having an outward first groove wall is recessed in the top surface of the upper connecting seat, the thickened portion is at least partially located within the lower groove, the position limiting portion includes the first groove wall, and the abutting portion of the edge portion can abut against the position limiting portion.

3. 3. The trailer body frame and soft-body compartment connection and fixing device according to claim 2, wherein the lower groove extends to the outer surface of the upper connecting seat, and an outer surrounding wall extends downward from the outside of the pressing block, the outer surrounding wall being located outside the upper connecting seat and surrounding at least the lower groove.

4. 2. The trailer body frame and soft-body cabin connecting and fixing device according to claim 1, wherein an upper groove having an outward second groove wall is recessed in the bottom surface of the pressing block, the thick portion is at least partially located within the upper groove, the position limiting portion includes the second groove wall, and the abutting portion of the edge portion can abut against the position limiting portion.

5. 2. The trailer body frame and soft-body cabin connecting and fixing device according to claim 1, wherein a lower groove having an outward first groove wall is recessed in the top surface of the upper connecting seat, and an upper groove having an outward second groove wall is recessed in the bottom surface of the pressing block; the thickened portion is located in the upper and lower grooves; the position limiting portion includes at least one of the first groove wall and the second groove wall, and the abutting portion of the edge can abut against the position limiting portion.

6. 2. The device for connecting and fixing a trailer body frame to a flexible cabin as claimed in claim 1, characterized in that the upper connecting seat is provided with a lower connecting hole, and the fixing member is fixedly connected to the lower connecting hole through the upper through hole and edge portion; the top surface of the upper connecting seat is provided with a lower groove, the lower groove leads to the lower connecting hole, and the thick portion is at least partially located within the lower groove; and the abutting portion of the edge can abut against the fixing member.

7. 2. The device for connecting and fixing a trailer body frame and a soft-bodied cabin as claimed in claim 1, characterized in that an upper groove is formed on the bottom surface of the pressing block, the upper groove is connected to the upper through-hole, and the thick-walled portion is at least partially located within the upper groove; and the abutment portion of the edge can abut against a fixing member.

8. The thick portion includes an edge cover provided on the periphery of the soft-bodied compartment, the edge cover has a layer portion superimposed on the surface of the edge portion, and the inward side surface of the layer portion forms the abutment portion. A connecting and fixing device for connecting and fixing a trailer body frame and a soft-bodied compartment as described in any one of claims 1 to 7.

9. 9. The trailer body frame and soft-bodied cabin connecting device according to claim 8, further comprising: a fixing nail for fixing and connecting the edge portion and the layer portion; a third groove for fitting the end of the fixing nail in the fitting space, the end of the fixing nail being located in the third groove; and the edge cover having two layers respectively overlapped on the top and bottom of the edge portion.

10. The trailer body frame and soft-bodied cabin connection and fixing device according to any one of claims 1 to 7, characterized in that the fixing member is located outside the mixing space.

11. The connecting and fixing device for connecting and fixing the body frame and the soft-bodied cabin of a trailer as described in any one of claims 1 to 7, characterized in that the upper through-hole is a stepped hole that is larger at the top and smaller at the bottom, and a pressing lid is arranged from top to bottom to cover the upper through-hole.

12. The connection and fixing device between the trailer body frame and the soft-body cabin according to any one of claims 1 to 7, characterized in that the fixing member is a screw, and the screw penetrates the upper through-hole and edge of the pressing block from top to bottom, and is screwed into the upper connecting seat.

13. A trailer comprising the trailer body frame and soft-bodied compartment connecting and fixing device according to claim 1.

Images