A riveting device for assembling a folding ladder of a recreational vehicle
By designing a riveting device with adjustable handle pushing force, the problem of user hand stability during the riveting process of RV folding ladders is solved, improving riveting efficiency and applicability. It is suitable for rivets of different sizes and reduces the complexity of operation by providing a warning light before riveting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGKOU YONGAN VEHICLE WINDOW CO LTD SHANDONG
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-14
AI Technical Summary
Existing riveting equipment for RV folding ladders requires users to hold it steady during use, leading to frequent adjustments of the rivets and pre-drilled holes, which affects work efficiency and increases labor intensity.
A riveting device for assembling a folding ladder for a motorhome was designed. The locking effect of the movable block on the rivet is adjusted by changing the pushing force of the handle. It is applicable to rivets of different sizes and is combined with a limit bar and a warning light to improve riveting efficiency.
It improves riveting efficiency, is suitable for rivets of different sizes, and provides a warning light before riveting, reducing the user's labor intensity and operational complexity.
Smart Images

Figure CN224487586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of riveting equipment technology, and in particular to a riveting device for assembling a folding ladder for a motorhome. Background Technology
[0002] Cold rolling riveting equipment uses a rivet rod to apply local pressure to the rivet and continuously swing it around the center to form the rivet, avoiding thermal deformation. It is especially suitable for the manufacture of aluminum alloy ladders. As an important accessory for RVs, folding ladders have unique design features in terms of space utilization, safety and convenience. They adopt a purely mechanical folding structure, and when folded, the thickness is only 15-20cm. They can be embedded in the side panel of the vehicle body or the dedicated storage box of the chassis, avoiding taking up interior space. Some models (such as the Feichi off-road RV model) achieve a perfect fit with the contours of the vehicle body through a frame fixing design.
[0003] The riveting equipment required for assembling RV folding ladders needs to balance portability, precision, and ease of operation. Handheld or suspended equipment (such as the Berrick ZMJ model) should be preferred. It is suitable for on-site assembly scenarios, supports single-sided or double-sided riveting, and cold rolling riveting technology can ensure uniform rivet forming and avoid metal fatigue. It is suitable for fixing the steps and connecting the joints of aluminum alloy ladders, but it must be compatible with common ladder profiles such as square tubes and D-shaped tubes.
[0004] In the existing technology, because the user needs to hold the folding ladder of the RV to maintain stability during the riveting process, the user needs to frequently adjust the rivets when connecting them to the reserved holes, which not only affects work efficiency but also increases the user's labor intensity. Summary of the Invention
[0005] The purpose of this utility model is to provide a riveting device for assembling a folding ladder for a motorhome, which can adjust the locking effect of the movable block on the rivet by changing the force of pushing the handle, and is applicable to rivets of different sizes, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a riveting device for assembling a folding ladder for a motorhome, comprising a base and a groove formed on the left side of the base, wherein a positioning component is provided on both the inner and outer sides of the base, and the positioning component includes a first movable groove formed inside the base;
[0007] A second movable groove is provided at the center of the upper side of the interior of the base. A handle is slidably connected inside the second movable groove. Movable grooves are provided on both the front and rear sides of the left end of the interior of the base. Movable blocks are slidably connected inside the movable grooves. A tension spring is fixedly connected to the side of the front and rear movable blocks that is away from each other. The other end of the tension spring is fixedly connected to the side of the movable groove that is away from the movable block. A slot is provided on the right side of the side of the front and rear movable blocks that is away from each other. Guide grooves are provided through the upper and lower sides of the interior of the movable grooves. Guide blocks are fixedly connected to the upper and lower sides of the movable blocks. The guide blocks are slidably connected inside the guide grooves. A movable bracket is slidably connected inside the first movable groove. After the left side of the movable bracket moves, it is inserted into the slot.
[0008] Preferably, the base is in the shape of an inverted "T", the first movable groove is connected to the second movable groove, the movable bracket is in the shape of a "U", and the left side of the opposite side of the horizontal plate of the front and rear movable brackets is set with an incline. The movable bracket slides and makes sliding and pressing contact with the inside of the slot through the incline.
[0009] Preferably, the shapes of the front and rear movable blocks are adapted to the shape of the inner cavity of the groove, the groove is connected to the movable slot, the lower half of the handle is inverted "T" shape, the shape of the lower half of the handle is adapted to the shape of the second movable slot, and the shape of the movable slot is adapted to the shape of the movable block.
[0010] Preferably, the first movable slot has an embedding slot on both the front and rear sides of the left end of the interior. A pressure spring is arranged parallel to the left side of the interior of the embedding slot and the left side of the vertical part of the movable bracket. The upper side of the horizontal part of the movable bracket is fixedly connected to the lower side of the handle.
[0011] Preferably, the base has a control component on both its inner and outer sides, and the control component includes a piston rod fixedly connected to the left side of the outer surface of the handle.
[0012] Preferably, a fixed cylinder is fixedly connected to the right side of the vertical part of the base, the piston rod is slidably connected inside the fixed cylinder, a pressure sensor is provided on the left side inside the fixed cylinder, and a warning light is provided at the top of the handle.
[0013] Preferably, a drive motor is provided on the upper side of the vertical part of the base, a lead screw is fixedly connected to the output end of the drive motor, a lead screw nut is threaded to the outer side of the lead screw, a slider is sleeved on the outer side of the lead screw nut, a sliding groove is provided on the left side of the vertical part of the base, the slider is slidably connected inside the sliding groove, and a riveting piece is fixedly connected to the left side of the slider.
[0014] Preferably, the riveting component is located directly above the slot, and both the warning light and the pressure sensor are electrically connected to an external power supply.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. Adjust the distance between the two movable blocks after moving the set movable bracket. Since the base and the rivet are aligned during the process of moving the base by the handle, the locking effect of the movable blocks on the rivet can be adjusted by changing the force of pushing the handle. It can also be applied to rivets of different sizes to improve riveting efficiency.
[0017] 2. The rivet is controlled by the limit rod after the handle is pushed, and the position of the rivet can be freely adjusted. Since the rivet can be controlled to complete the riveting and fixing after the handle is pushed, a warning light is issued before the riveting starts. At the same time, the height of the rivet can be freely adjusted, so that the rivet can be used for rivets of different sizes. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is an overall structural view of the present invention;
[0020] Figure 2 This is a schematic diagram of a half-section of the present invention;
[0021] Figure 3 This is a half-sectional structural diagram of the base of this utility model;
[0022] Figure 4 This is a half-sectional structural diagram of the movable groove of this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Base; 11. Groove; 2. Positioning component; 21. First moving groove; 22. Second moving groove; 23. Handle; 24. Movable groove; 25. Movable block; 26. Tension spring; 27. Slot; 28. Guide groove; 29. Guide block; 3. Embedded groove; 4. Pressure spring; 5. Movable bracket; 6. Control component; 61. Piston rod; 62. Fixed cylinder; 63. Pressure sensor; 64. Warning light; 65. Slide groove; 66. Slider; 67. Drive motor; 68. Lead screw; 69. Lead screw nut; 7. Riveting component. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This utility model provides a technical solution:
[0027] Please see Figures 1 to 4 A riveting device for assembling a folding ladder for a motorhome includes a base 1 and a groove 11 formed on the left side of the base 1. The inner and outer sides of the base 1 are provided with positioning components 2, and the positioning components 2 include a first moving groove 21 formed inside the base 1.
[0028] A second movable groove 22 is provided at the center of the upper side inside the base 1. A handle 23 is slidably connected inside the second movable groove 22. Movable grooves 24 are provided on both the front and rear sides of the left end inside the base 1. Movable blocks 25 are slidably connected inside the movable grooves 24. A tension spring 26 is fixedly connected to the side of the front and rear movable blocks 25 that is far away from each other. The other end of the tension spring 26 is fixedly connected to the side of the movable groove 24 that is far away from the movable block 25. A slot 27 is provided on the right side of the side of the front and rear movable blocks 25 that is far away from each other. Guide grooves 28 are provided through the upper and lower sides inside the movable groove 24. Guide blocks 29 are fixedly connected to the upper and lower sides of the movable blocks 25. The guide blocks 29 are slidably connected inside the guide grooves 28. A movable bracket 5 is slidably connected inside the first movable groove 21. After the left side of the movable bracket 5 moves, it is inserted into the slot 27.
[0029] The base 1 is in the shape of an inverted "T". The first moving groove 21 and the second moving groove 22 are connected. The movable bracket 5 is in the shape of a "U". The left side of the horizontal plate of the front and rear movable brackets 5 is set with an incline. The movable bracket 5 slides and makes sliding and pressing contact with the inside of the slot 27 through the incline.
[0030] The shape of the front and rear movable blocks 25 is adapted to the shape of the inner cavity of the groove 11. The groove 11 is connected to the movable groove 24. The lower half of the handle 23 is inverted "T" shape. The shape of the lower half of the handle 23 is adapted to the shape of the second movable groove 22. The shape of the movable groove 24 is adapted to the shape of the movable block 25.
[0031] The first movable slot 21 has an embedded slot 3 on both the front and rear sides of the left end of the interior. A pressure spring 4 is arranged parallel between the left side of the interior of the embedded slot 3 and the left side of the vertical part of the movable bracket 5. The upper side of the horizontal part of the movable bracket 5 is fixedly connected to the lower side of the handle 23.
[0032] By adopting the above technical solution, the user holds the handle 23 to move the base 1, then aligns the groove 11 on the left side of the base 1 with the reserved hole of the folding ladder, inserts the rivet into the reserved hole and pushes the handle 23. As the handle 23 slides inside the second moving groove 22, the handle 23 will drive the movable bracket 5 to slide inside the first moving groove 21. As the inclined surface of the movable bracket 5 contacts the movable block 25 inside the moving groove 24, the movable bracket 5 will squeeze the movable block 25, causing the movable block 25 to pull the tension spring 26 inside the moving groove 24. At the same time, the guide blocks 29 on the upper and lower sides of the movable block 25 will slide inside the guide groove 28. When the bracket 5 can no longer move inside the first moving slot 21, the distance between the two movable blocks 25 will be determined, and the rivet between the two movable blocks 25 will be squeezed. During the movement of the movable bracket 5, the pressure spring 4 embedded in the slot 3 will be squeezed. When the base 1 moves away from the working area, the pressure spring 4 pushes the movable bracket 5, so that the movable bracket 5 gradually returns to its original position. Since the base 1 is moved by the handle 23, if the position of the base 1 and the rivet is aligned, the locking effect of the movable block 25 on the rivet can be adjusted by changing the force of pushing the handle 23. At the same time, it can be applied to rivets of different sizes to improve the riveting efficiency.
[0033] Specifically, such as Figure 4 As shown, the base 1 has a control component 6 on both its inner and outer sides. The control component 6 includes a piston rod 61 that is fixedly connected to the left side of the outer surface of the handle 23.
[0034] A fixed cylinder 62 is fixedly connected to the right side of the vertical part of the base 1. The piston rod 61 is slidably connected inside the fixed cylinder 62. A pressure sensor 63 is provided on the left side inside the fixed cylinder 62. A warning light 64 is provided on the top of the handle 23.
[0035] A drive motor 67 is provided on the upper side of the vertical part of the base 1. A lead screw 68 is fixedly connected to the output end of the drive motor 67. A lead screw nut 69 is threadedly connected to the outer side of the lead screw 68. A slider 66 is sleeved on the outer side of the lead screw nut 69. A slide groove 65 is provided on the left side of the vertical part of the base 1. The slider 66 is slidably connected inside the slide groove 65. A rivet 7 is fixedly connected to the left side of the slider 66.
[0036] The rivet 7 is located directly above the slot 27, and the warning light 64 and the pressure sensor 63 are both electrically connected to an external power supply.
[0037] By adopting the above technical solution, during the process of pushing the grip 23, the piston rod 61 on the outside of the grip 23 will slide inside the fixed cylinder 62 and compress the gas inside the fixed cylinder 62. The compressed gas will flow to the pressure sensor 63. After the pressure sensor 63 is squeezed for a few seconds, the warning light 64 above the grip 23 will light up after receiving the information and turn off after the riveting is completed. At the same time, the rivet is fixed by the riveting part 7. The height of the riveting part 7 can be adjusted before operation by driving the lead screw 68 to rotate through the drive motor 67, so that the lead screw nut 69 on the outside of the lead screw 68 drives the slider 66 to slide inside the slide groove 65. The riveting part 7 fixed to the slider 66 will change with the change of the height of the slider 66. Since the grip 23 can be pushed, the riveting part 7 can be controlled to complete the riveting and fixation, and a warning light 64 will be issued before the riveting begins. At the same time, the height of the riveting part 7 can be freely adjusted, so that the riveting part 7 can be used for rivets of different sizes.
[0038] Working principle: The user holds the handle 23 to move the base 1. After the groove 11 aligns with the reserved hole of the folding ladder, the rivet is inserted into the reserved hole and the handle 23 is pushed. The handle 23 drives the movable bracket 5 to slide inside the first moving groove 21 and then contact the movable block 25 inside the movable groove 24. As the two movable blocks 25 are squeezed, they will squeeze the rivet between the two movable blocks 25. At the same time as the handle 23 is pushed, the piston rod 61 on the outside of the handle 23 will slide inside the fixed cylinder 62 and compress the gas inside the fixed cylinder 62. The compressed gas will flow to the pressure sensor 63, causing the warning light 64 above the handle 23 to light up. After the riveting is completed, the light will turn off. Then the rivet is fixed by the riveting part 7. The height of the riveting part 7 can be adjusted before operation by driving the lead screw 68 to rotate via the drive motor 67.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A riveting device for assembling a folding ladder for a motorhome, comprising a base (1) and a groove (11) formed on the left side of the base (1), characterized in that: The base (1) is provided with a positioning component (2) on both the inner and outer sides. The positioning component (2) includes a first moving groove (21) opened inside the base (1). The base (1) has a second moving groove (22) at the center of the upper side inside. A handle (23) is slidably connected inside the second moving groove (22). The base (1) has movable grooves (24) on both the front and rear sides of the left end inside. Movable blocks (25) are slidably connected inside the movable grooves (24). Tension springs (26) are fixedly connected to the side of the front and rear movable blocks (25) that are far apart. The other end of the tension springs (26) is fixedly connected to the side of the movable groove (24) that is far apart from the movable blocks (25). A slot (27) is opened on the right side of the side of the front and rear movable blocks (25) that are far apart. Guide grooves (28) are opened through the upper and lower sides inside the movable groove (24). Guide blocks (29) are fixedly connected to the upper and lower sides of the movable blocks (25). The guide blocks (29) are slidably connected inside the guide grooves (28). A movable bracket (5) is slidably connected inside the first moving groove (21).
2. The riveting equipment for assembling a folding ladder for a motorhome according to claim 1, characterized in that: After the left side of the movable bracket (5) moves, it is inserted into the inside of the slot (27). The base (1) is in the shape of an inverted "T". The first moving slot (21) is connected to the second moving slot (22). The movable bracket (5) is in the shape of a "U". The left side of the horizontal plate of the front and rear movable brackets (5) is set with an inclined surface. The movable bracket (5) slides and presses against the inside of the slot (27) through the inclined surface.
3. The riveting equipment for assembling a folding ladder for a motorhome according to claim 1, characterized in that: The shape of the front and rear movable blocks (25) is adapted to the shape of the inner cavity of the groove (11). The groove (11) is connected to the movable groove (24). The lower half of the handle (23) is in the shape of an inverted "T". The shape of the lower half of the handle (23) is adapted to the shape of the second movable groove (22). The shape of the movable groove (24) is adapted to the shape of the movable block (25).
4. The riveting equipment for assembling a folding ladder for a motorhome according to claim 1, characterized in that: The first movable slot (21) has an embedding slot (3) on both the front and rear sides of the left end of the interior. A pressure spring (4) is arranged parallel between the left side of the interior of the embedding slot (3) and the left side of the vertical part of the movable bracket (5). The upper side of the horizontal part of the movable bracket (5) is fixedly connected to the lower side of the handle (23).
5. The riveting equipment for assembling a folding ladder for a motorhome according to claim 1, characterized in that: The base (1) has a control component (6) on both its inner and outer sides. The control component (6) includes a piston rod (61) fixedly connected to the left side of the outer surface of the handle (23).
6. The riveting equipment for assembling a folding ladder for a motorhome according to claim 5, characterized in that: A fixed cylinder (62) is fixedly connected to the right side of the vertical part of the base (1), the piston rod (61) is slidably connected inside the fixed cylinder (62), a pressure sensor (63) is provided on the left side inside the fixed cylinder (62), and a warning light (64) is provided at the top of the handle (23).
7. The riveting equipment for assembling a folding ladder for a motorhome according to claim 6, characterized in that: A drive motor (67) is provided on the upper side of the vertical part of the base (1). A lead screw (68) is fixedly connected to the output end of the drive motor (67). A lead screw nut (69) is threadedly connected to the outer side of the lead screw (68). A slider (66) is sleeved on the outer side of the lead screw nut (69). A slide groove (65) is provided on the left side of the vertical part of the base (1). The slider (66) is slidably connected inside the slide groove (65). A rivet (7) is fixedly connected to the left side of the slider (66).
8. The riveting equipment for assembling a folding ladder for a motorhome according to claim 7, characterized in that: The rivet (7) is located directly above the slot (27), and the warning light (64) and pressure sensor (63) are both electrically connected to an external power supply.