Dual-roller vehicle coupling device

Abstract

This utility model discloses a double-roller vehicle attachment device, which solves the problem that the excessive gap between the two rollers in existing double-roller vehicles can affect the smoothness of the vehicle's movement. The technical solution adopted is as follows: A double-roller vehicle attachment device includes two separately arranged rollers and a shell-shaped attachment part located on the lower side. Three gears are rotatably arranged inside the attachment part. The gear in the middle position meshes with the gears on both sides. The gears on both sides are connected to the rollers through a pull rod. The key feature is that the two ends of the strip-shaped connecting structure are movably connected to the middle position of the two pull rods, and the connecting structure is used to limit the separation distance between the two pull rods.

Description

Technical Field

[0001] This utility model relates to a carrier in an assembly line, and more particularly to a mounting device on a double-roller carrier. Background Technology

[0002] Production lines typically require numerous carriers to transport materials. Garment hanging systems, as part of the production line in the garment and textile manufacturing industry, also require carriers to transport fabric pieces. These carriers need to move along the production line. In garment hanging systems, rollers are mounted on the upper part of the carrier, and these rollers are movably connected to the carrier body via pull rods. When manufacturing garments, because the fabric pieces being transported are relatively light, a single-roller carrier is perfectly capable of transporting them. However, when transporting large and heavy products such as bedding, the load-bearing capacity of a single-roller carrier may not be sufficient. Therefore, a double-roller carrier has now been developed. This carrier's structure includes two separated rollers and a shell-like hook-up section located on the lower side. Three gears are rotatably mounted within the hook-up section, with the axes of the three gears lying in the same plane. The middle gear meshes with both side gears. Two rollers are connected to two gears on either side via two connecting rods. Both ends of the connecting rods are bent to the same side, with the bent portions interlocking at the axis of the gears and rollers. There is a certain gap between the two rollers. When this dual-roller vehicle is driven, the forces acting on the two rollers during movement are not uniform, which may increase the distance between the two connecting rods, affecting the smoothness of the vehicle's movement. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a double-roller carrier attachment device, in which the distance between the pull rods does not change much, thereby making the carrier smooth when transporting goods.

[0004] To solve the aforementioned technical problem, the present invention provides the following technical solution: a double-roller carrier attachment device, comprising two separately arranged rollers and a shell-shaped attachment part located on the lower side. Three gears are rotatably arranged within the attachment part. The gear in the middle position meshes with the gears on both sides. The gears on both sides are connected to the rollers via a pull rod. The device is characterized in that the two ends of a strip-shaped connecting structure are movably connected to the middle positions of the two pull rods, and the connecting structure is used to limit the separation distance between the two pull rods.

[0005] The connecting structure itself needs to have a certain strength to limit the distance between the two tie rods, preventing them from becoming too far apart. While the connecting structure has sufficient strength and is a movable connection with the tie rods, allowing for a maximum increase in distance between the two rods (within centimeters), the distance will not increase excessively due to the limitations of the connecting structure.

[0006] Furthermore, the connecting structure is a connecting chain, which is composed of several interlocking rings. The length of the connecting chain corresponds to the normal interval between the two pull rods, and the connecting chain is used to limit the expansion of the distance between the two pull rods.

[0007] Furthermore, a U-shaped connecting piece is hinged to the pull rod, with both ends of the connecting piece pivotally connected to the pull rod. The outermost ring of the connecting chain is movably fastened to the closed end of the connecting piece. The connecting piece facilitates the connection between the connecting chain and the pull rod.

[0008] Furthermore, notches are formed at the upper and lower edges of the closed end of the connecting piece, and the ring buckle that engages with the connecting piece is located at the notch. The notch is adapted to the outer circumferential surface of the ring buckle. The presence of the notch ensures good connection stability between the ring buckle and the connecting piece, and the width of the connecting piece can be relatively large, thus facilitating the movable connection between the connecting piece and the pull rod.

[0009] Furthermore, the connecting structure includes a connecting strip, which is a sheet-like structure. The sheet-like connecting strip has a simple structure and facilitates connection with the pull rod.

[0010] Furthermore, elongated holes are provided at both ends of the connecting strip, and connecting bolts that are fixed to the tie rod are intermittently inserted into the elongated holes. By providing elongated holes at both ends of the connecting strip, a certain range of motion is allowed between the connecting strip and the tie rod, thereby enabling it to adapt well to the smooth movement of the vehicle on the assembly line.

[0011] Compared with the prior art, the present invention has the following advantages: In this mounting device, the connecting structure described above is provided between the two pull rods. Through the constraint of the connecting structure, the distance between the two rollers will not increase significantly due to inconsistent force, thus well meeting the requirements for smooth vehicle movement. Through the movable connection between the connecting structure and the pull rods, there is a certain amount of play between the pull rods and the connecting structure. When the rollers get stuck during movement, this play can effectively reduce the sticking, facilitating smooth vehicle movement. Attached Figure Description

[0012] Figure 1 This is a structural diagram of one embodiment of the dual-roller vehicle attachment device.

[0013] Figure 2 This is a structural diagram of another implementation of the dual-roller vehicle attachment device.

[0014] In the diagram: 1. Roller; 2. Tie rod; 3. Connecting plate; 4. Connecting chain; 5. Connecting bolt; 6. Hanging part; 7. Gear; 8. Connecting strip. Detailed Implementation

[0015] Referring to the accompanying drawings, this double-roller carrier attachment device is mainly used in garment hanging systems to transport fabrics, finished products, or semi-finished products to the corresponding workstations. Figure 1 , 2 The image only shows the attachment device for the vehicle. In actual applications, a specific loading body, such as a clothes rack or a basket, needs to be installed below the attachment device to load the cargo.

[0016] The structure of this hanging device includes two separately arranged rollers 1, which are used to hang on a ring rail in a garment hanging system. A drive mechanism is provided on the upper side of the ring rail. The drive mechanism pushes the rollers 1, causing them to roll forward on the ring rail, thus realizing long-distance transport of the load. There are two rollers 1, which are arranged separately. The hanging device also includes a hanging part 6 located below the rollers 1. The hanging part 6 is shell-shaped and contains three gears 7. The three gears 7 are rotatably arranged in the hanging part 6 through a wheel axle, and the three wheel axles are located on the same plane. The gear 7 in the middle position meshes with the gears 7 on both sides, and the gears 7 on both sides are connected to the rollers 1 through a tie rod 2. The two tie rods 2 extend upward from the same side of the hanging part 6 to the upper side of the hanging part 6. A hanging rod extending downward is connected to the axis of the middle gear 7, and the load is suspended on the lower end of the hanging rod. Two tie rods 2 are movably connected together by a strip-shaped connecting structure, with both ends of the strip-shaped connecting structure movably connected to the middle positions of the two tie rods 2. Under the constraint of the connecting structure, the separation distance between the two tie rods 2 will not be too large.

[0017] Figure 1 This diagram illustrates one embodiment of the connecting device. The connection structure shown is a connecting chain 4, the length of which corresponds to the interval between the two pull rods 2. The connecting chain 4 is composed of several interlocking rings. The rings are waist-shaped and can be made of iron or plastic. To achieve the movable connection between the connecting chain 4 and the pull rods 2, a U-shaped connecting piece 3 is hinged to the pull rod 2. The two ends of the connecting piece 3 are hinged to the pull rod 2 by connecting bolts 5. The outermost ring of the connecting chain 4 is movably engaged with the closed end of the connecting piece 3. Notches are formed at the upper and lower edges of the closed end of the connecting piece 3, and the rings that engage with the connecting piece 3 are located at the notches.

[0018] Figure 2 Another embodiment of the mounting device is shown. The connection structure shown in the figure includes a connecting strip 8, which is a long strip-shaped sheet, and is generally made of iron or stainless steel. Elongated holes are provided at both ends of the connecting strip 8, and connecting bolts 5, which are fixed to the pull rod 2, are intermittently inserted into the elongated holes.

Claims

1. A double-roller carrier mounting device, comprising two separately arranged rollers and a shell-shaped mounting portion located on the lower side, wherein three gears are rotatably arranged within the mounting portion, the gear in the middle position meshing with the gears on both sides, and the gears on both sides being connected to the rollers via a pull rod, characterized in that, The two ends of the strip-shaped connecting structure are movably connected to the middle of the two tie rods, and the connecting structure is used to limit the separation distance between the two tie rods.

2. The dual roller vehicle hitching arrangement of claim 1, wherein, The connection structure is a connecting chain, which is composed of several interlocking rings.

3. The dual roller vehicle hitching arrangement of claim 2, wherein, The pull rod is hinged with a U-shaped connecting piece, the two ends of which are pivotally connected to the pull rod. The outermost ring of the connecting chain is movably fastened to the closed end of the connecting piece.

4. The dual roller vehicle hitching arrangement of claim 3, wherein, Notches are formed at the upper and lower edges of the closed end of the connecting piece, and the ring buckle that engages with the connecting piece is located at the notch.

5. The dual roller vehicle hitching apparatus of claim 1, wherein, The connection structure includes a connecting strip, which is a sheet-like body.

6. The dual-roller carrier attachment device according to claim 5, characterized in that, The connecting strip has elongated holes at both ends, and the connecting bolts that are fixed to the tie rod are intermittently inserted into the elongated holes.

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