A slide guide rotation mechanism
The cylinder drive push seat drives the flip bracket to flip, combined with the design of the limiting parts and sliding plate, the problems of large swing and unstable fit of the guide structure are solved, and the compactness and accuracy of the guide structure is achieved to ensure the stability and safety of the slide plate conveying.
Patent Information
- Application Number
- CN202211309259.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-25
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2042-10-25
AI Technical Summary
The guide structure of the existing friction-driven skateboard conveyor line has a large swing range, occupying a lot of space, and its coordination with the skateboard is not stable and accurate enough.
The cylinder drive push seat is used to drive the flip of the flip bracket, and the rotation shaft and limiting parts control the flip of the guide wheel assembly, and the sliding plate combining the plane and bevel transitions achieves smooth flip, reducing the swing space of the guide wheel assembly.
The smooth flip of the guide structure is achieved, the floor area is reduced, the guidance accuracy and the safety of the skateboard are improved, and the safe conveying of the skateboard is ensured in the event of a failure.
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Figure CN116119298B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of guide devices, in particular to a slide plate guide rotation mechanism. Background Art
[0002] Conveyor lines are increasingly demanding in modern industry, along with increasingly stringent requirements for stability and the human-machine environment. For conveyor lines in large assembly plants, such as those used in automotive interior assembly, a variety of conveyor methods are commonly used, such as slide-type and suspension-type conveyors, to facilitate assembly. Friction-driven slide-type conveyors are a key form of conveyor line for automotive interior assembly. Due to their relatively simple equipment requirements, flexible configurations, and good adaptability in real-world production, they are widely used.
[0003] The conveyor line using friction drive skateboards is usually in the form of a ground non-powered roller line. The friction drive provides power to drive the skateboard to run on the non-powered roller, and the skateboard needs to change direction in the vertical direction at the end of the line. At the turning point of the line, the friction drive is combined with a right-angle jacking device to realize transportation in two directions perpendicular to each other. At the same time, multiple skateboard guide structures are set to guide in two directions to prevent the skateboard from deviating and not hinder the passage of the skateboard. After the skateboard enters the right-angle jacking device and moves in the vertical direction, the guide structure in the original movement direction needs to change its posture to be lower than the plane of the skateboard to prevent collision with the skateboard. At present, a drive structure is usually used to directly rotate the guide structure 90 degrees to achieve the change of the guide structure's posture and coordination with the side of the skateboard. The swing amplitude of the guide structure of this mechanism is large, and it occupies a large space. At the same time, the stability of the mechanism is poor, and the coordination structure between the guide structure and the skateboard is not stable and accurate enough. Summary of the Invention
[0004] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides a slide guide rotation mechanism, thereby reducing the swing amplitude of the guide structure, while making the guiding action of the rotation mechanism smooth during use, and the matching structure between the guide structure and the slide is precisely controllable.
[0005] The technical solutions adopted in the present invention are as follows:
[0006] A skateboard guiding and rotating mechanism includes a fixed frame, a support frame is provided at one end of the fixed frame, a flip bracket is installed on the upper part of the support frame, a cylinder is installed on the upper part of the other end of the fixed frame, the cylinder body of the cylinder is hinged to the upper surface of the fixed frame, a pushing seat is installed in the middle part of the fixed frame for sliding cooperation, the output end of the cylinder is connected to the pushing seat, and the movement direction of the output end of the cylinder is a horizontal straight line direction, one end of the flip bracket is hinged to the support frame, and a guide wheel assembly that cooperates with the side of the skateboard is installed on the upper side of the other end of the flip bracket, the flip bracket below the guide wheel assembly is slidably cooperated with the upper surface of the pushing seat, and when the pushing seat slides under the drive of the cylinder, it drives the flip bracket to flip upward so that the guide wheel assembly cooperates with the side of the skateboard.
[0007] As a further improvement of the above technical solution:
[0008] The structure of the flip bracket assembly is as follows: it includes a horizontally arranged rotating shaft, the rotating shaft is connected to the support frame, two connecting plates are arranged in parallel and spaced apart in the middle of the rotating shaft, one end of the connecting plate is fixedly connected to the rotating shaft, a sliding wheel is arranged between the other ends of the two connecting plates, the sliding wheel cooperates with the connecting plate, and also includes a mounting plate for installing the guide wheel assembly, the bottom of the mounting plate is connected to the side edges of the two connecting plates at the same time, and the sliding wheel slides with the upper surface of the pushing seat.
[0009] A fixing block with a hole in the middle is provided on the upper surface of the mounting plate, and the fixing block is connected to the guide wheel assembly.
[0010] A limiting piece is provided on the rotating shaft, and an end portion of the limiting piece is matched with the upper portion of the supporting frame.
[0011] The structure of the pushing seat is as follows: it includes two vertically arranged support plates, the bottoms of the two support plates are slidably connected to the fixed frame, and sliding plates are installed on the upper ends of the two support plates. The length direction of the sliding plates corresponds to the movement direction of the output end of the cylinder. The middle part of the sliding plate along the length direction is a lifting part, and a lower transition part is provided at one end of the lifting part along the length direction. An upper transition part is provided at one end of the lifting part along the length direction. The upper surface of the lifting part is an inclined plane, and the upper surface of the upper transition part is higher than the upper surface of the lower transition part. The upper surface of the lifting part, the upper surface of the lower transition part and the upper surface of the upper transition part all slide with the flip bracket assembly, and the support plate on one side of the upper transition part is connected to the output end of the cylinder.
[0012] The angle between the upper surface of the lifting part and the horizontal plane is 25°-35°.
[0013] The upper surface of the upper transition portion is a plane parallel to the horizontal plane, and the upper surface of the upper transition portion transitions smoothly with the upper surface of the lifting portion. The upper surface of the lower transition portion is a plane parallel to the horizontal plane, and the upper surface of the lower transition portion transitions smoothly with the upper surface of the lifting portion.
[0014] The structure of the guide wheel assembly is as follows: it includes a central shaft installed on the flip bracket, the outer periphery of the central shaft is rotatably connected to the guide wheel body, and the outer circumferential surface of the guide wheel body is slidably matched with the side of the skateboard.
[0015] One end of the central shaft is mounted on the flip bracket through a support seat. A screw rod perpendicular to the axis of the central shaft is provided on one side of the support seat, and the screw rod cooperates with the flip bracket.
[0016] The structure of the support frame is as follows: it includes symmetrically arranged columns, a connecting seat plate is arranged on the upper part of the columns, the lower surface of the connecting seat plate is connected to the upper surface of the columns at the same time, and a bearing seat hinged to the flip bracket is symmetrically arranged on the upper surface of the connecting seat plate, and the upper surface of the connecting seat plate cooperates with the flip bracket.
[0017] The beneficial effects of the present invention are as follows:
[0018] The structure of the present invention is simple, compact and reasonable. The pushing seat is used to horizontally push the flip bracket to flip, thereby realizing a smooth flipping of the guide wheel assembly. At the same time, the hinge part of the flip bracket is raised while ensuring the overall height of the rotating mechanism, thereby reducing the space occupied by the swing of the guide wheel assembly, thereby reducing the floor area of the steering skateboard line.
[0019] The present invention also includes the following advantages:
[0020] (1) By setting a sliding plate with a smooth transition between a plane, an inclined plane, and a plane, the sliding plate and the sliding wheel can slide together to make the entire flipping action smooth and achieve a smooth transition at the beginning and end of the flipping action.
[0021] (2) The end of the limiter cooperates with the upper surface of the connecting seat plate on the upper part of the support frame to serve as a limit for the flip bracket assembly, ensuring that the flip bracket assembly does not exceed the maximum flip angle when flipping, and ensuring the safe transportation of the slide in the event of a failure in the drive structure of the conveyor line.
[0022] (3) The screw on the guide wheel assembly support seat cooperates with the fixed block of the flip bracket assembly to facilitate the adjustment of the degree of cooperation between the guide wheel assembly and the side of the skateboard after flipping, ensuring the guiding accuracy and smooth guiding process. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional diagram of the present invention (after the flip bracket is flipped upward).
[0024] Figure 2 It is an exploded view of the present invention.
[0025] Figure 3 It is an exploded view of the present invention (another perspective).
[0026] Figure 4It is a schematic structural diagram of the present invention (after the flip bracket is flipped upward).
[0027] Figure 5 It is a schematic structural diagram of the present invention (before the flip bracket is flipped upward).
[0028] Figure 6 It is a structural schematic diagram of the flip bracket of the present invention.
[0029] Figure 7 This is a schematic structural diagram of the flip bracket of the present invention (from another perspective).
[0030] Figure 8 This is a bottom view of the flip bracket of the present invention.
[0031] Figure 9 for Figure 8 Cross-sectional view of section AA.
[0032] Figure 10 It is a structural schematic diagram of the push seat of the present invention.
[0033] Figure 11 It is the front view of the push seat of the present invention.
[0034] Figure 12 It is a structural schematic diagram of the guide wheel assembly of the present invention.
[0035] Figure 13 It is a cross-sectional view of the guide wheel assembly of the present invention.
[0036] Figure 14 This is the installation layout diagram of the slide conveyor line of the present invention.
[0037] Figure 15 for Figure 14 A partial enlarged view of point B in the middle.
[0038] Including: 1. Slide side; 2. Guide wheel assembly; 3. Flip bracket; 4. Push seat; 5. Fixed frame; 6. Cylinder;
[0039] 21. Central axis; 22. Guide wheel body; 23. Support seat; 24. Screw;
[0040] 31. Rotating shaft; 32. Connecting plate; 33. Sliding wheel; 34. Mounting plate; 35. Fixing block; 36. Limiting member;
[0041] 3301, mounting shaft; 3302, pulley body; 3303, flanging copper sleeve; 3304, spacer;
[0042] 40. Sliding plate; 41. Lifting portion; 42. Lower transition portion; 43. Upper transition portion; 44. Support plate;
[0043] 51. Support frame; 5101. Column; 5102. Connecting seat plate; 5103. Bearing seat;
[0044] a. Slide plate guide rotation mechanism; b. Friction drive mechanism; c. Slide plate. DETAILED DESCRIPTION
[0045] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.
[0046] like Figure 1-Figure 5 As shown, the skateboard guide rotation mechanism of this embodiment includes a fixed frame 5, a support frame 51 is provided at one end of the fixed frame 5, a flip bracket 3 is installed on the upper part of the support frame 51, and a cylinder 6 is installed on the upper part of the other end of the fixed frame 5. The cylinder body of the cylinder 6 is hinged to the upper surface of the fixed frame 5, and a push seat 4 is installed in the middle part of the fixed frame 5 in a sliding manner. The output end of the cylinder 6 is connected to the push seat 4, and the movement direction of the output end of the cylinder 6 is a horizontal straight line direction. One end of the flip bracket 3 is hinged to the support frame 51, and a guide wheel assembly 2 that cooperates with the side edge 1 of the skateboard is installed on the upper side of the other end of the flip bracket 3. The flip bracket 3 below the guide wheel assembly 2 slides with the upper surface of the push seat 4. When the push seat 4 slides under the drive of the cylinder 6, it drives the flip bracket 3 to flip upward so that the guide wheel assembly 2 cooperates with the side edge 1 of the skateboard.
[0047] The cylinder 6 and the flip bracket 3 are slidably matched to drive the push seat 4, which converts the horizontal linear motion of the output end of the cylinder 6 into the rotation of the flip bracket 3 around the hinge part. This flip structure is stable, and the flip bracket 3 is stable in the rotation process because it is supported by the push seat 4; a support frame 51 is provided to lift the flip bracket 3 after flipping it around the hinge part, so that the horizontal and vertical space occupied by the swing amplitude of the guide wheel assembly 2 is greatly reduced, the distance between two adjacent slides is shortened, and the overall footprint of the line body is reduced; the cylinder 6, the push seat 4, and the flip bracket 3 are arranged on the fixed frame 5, so that the rotating mechanism structure is flat and suitable for installation under the slide conveyor line.
[0048] By using the pushing seat 4 to horizontally push the flip bracket 3 to flip, the guide wheel assembly 2 can be flipped smoothly. At the same time, the hinge part of the flip bracket 3 is raised while ensuring the overall height of the rotating mechanism, thereby reducing the space occupied by the swing of the guide wheel assembly 2, thereby reducing the floor area of the steering skateboard line.
[0049] The push seat 4 is slidably mounted on the fixed frame 5 through a slide rail and slider structure.
[0050] like Figure 12-13 As shown, the structure of the guide wheel assembly 2 is: it includes a central shaft 21 installed on the flip bracket 3, the outer periphery of the central shaft 21 is rotatably connected to the guide wheel body 22, and the outer circumferential surface of the guide wheel body 22 is slidably matched with the side edge 1 of the skateboard.
[0051] One end of the central shaft 21 is mounted on the flip bracket 3 through a support seat 23 . A screw rod 24 perpendicular to the axis of the central shaft 21 is provided on one side of the support seat 23 . The screw rod 24 cooperates with the flip bracket 3 .
[0052] like Figure 6-Figure 9 As shown, the structure of the flip bracket assembly 3 is: it includes a horizontally arranged rotating shaft 31, the rotating shaft 31 is connected to the support frame 51, two connecting plates 32 are arranged parallel and spaced in the middle of the rotating shaft 31, one end of the connecting plate 32 is fixedly connected to the rotating shaft 31, and a sliding wheel 33 is arranged between the other ends of the two connecting plates 32, and the sliding wheel 33 cooperates with the connecting plate 32, and also includes a mounting plate 34 for installing the guide wheel assembly 2, the bottom of the mounting plate 34 is connected to the side edges of the two connecting plates 32 at the same time, and the sliding wheel 33 slides with the upper surface of the pushing seat 4.
[0053] The structure of the sliding wheel 33 is as follows, including a mounting shaft 3301, the two ends of the mounting shaft 3301 are respectively connected to the two connecting plates 32, the middle part of the mounting shaft 3301 located between the two connecting plates 32 is fitted with a pulley body 3302, and the mounting shaft 3301 located at both ends of the pulley body 3302 is fitted with a flanged copper sleeve 3303, and the flanged copper sleeve 3303 is also matched with the end of the pulley body 3302. A spacer sleeve 3304 is also provided between the flanged copper sleeve 3303 and the connecting plate 32, and the circumferential surface of the pulley body 3302 is slidably matched with the upper surface of the pushing seat 4.
[0054] A fixing block 35 with a central opening is provided on the upper surface of the mounting plate 34. This fixing block 35 is connected to the guide wheel assembly 2. A screw 24 is passed through the central opening of the fixing block 35, and the relative position of the fixing block 35 and screw 24 is adjusted to lock the upper support seat 23 of the guide wheel assembly 2 on the mounting plate 34. The screw 24 on the support seat 23 of the guide wheel assembly 2 mates with the fixing block 35 of the flip bracket assembly 3, facilitating adjustment of the fit between the flipped guide wheel assembly 2 and the side edge 1 of the skateboard, ensuring accurate and smooth guidance.
[0055] A limiting member 36 is provided on the rotating shaft 31 , and an end portion of the limiting member 36 is engaged with an upper portion of the supporting frame 51 .
[0056] like Figure 10-11As shown, the structure of the push seat 4 is as follows: it includes two vertically arranged support plates 44, the bottoms of the two support plates 44 are slidably connected to the fixed frame 5, and the upper ends of the two support plates 44 are mounted with a sliding plate 40. The length direction of the sliding plate 40 corresponds to the movement direction of the output end of the cylinder 6. The sliding plate 40 has a lifting portion 41 in the middle of the length direction. The lifting portion 41 is provided with a lower transition portion 42 at one end of the length direction, and an upper transition portion 43 at one end of the length direction. The upper surface of the lifting portion 41 is an inclined plane, and the upper surface of the upper transition portion 43 is higher than the upper surface of the lower transition portion 42. The upper surfaces of the lifting portion 41, the lower transition portion 42, and the upper surface of the upper transition portion 43 all slide with the flip bracket assembly 3. The support plate 44 on one side of the upper transition portion 43 is connected to the output end of the cylinder 6. The sliding wheel 33 slides on the surface of the sliding plate 40, and the flip bracket assembly 3 is driven to flip by changing the position of the sliding wheel 33 on the sliding plate 40.
[0057] The angle between the upper surface of the lifting portion 41 and the horizontal plane is 25°-35°.
[0058] The upper surface of the upper transition portion 43 is a plane parallel to the horizontal plane, and the upper surface of the upper transition portion 43 smoothly transitions to the upper surface of the lifting portion 41. The upper surface of the lower transition portion 42 is a plane parallel to the horizontal plane, and the upper surface of the lower transition portion 42 smoothly transitions to the upper surface of the lifting portion 41.
[0059] By providing a sliding plate 40 with a smooth transition between a plane, an inclined surface and a plane, the sliding plate 40 and the sliding wheel 33 can slide together to make the entire flipping action smooth and achieve a smooth transition at the beginning and end of the flipping action.
[0060] like Figure 1-Figure 5 As shown, a support frame 51 hingedly connected to the flip bracket 3 is provided at one end of the fixed frame 5. The structure of the support frame 51 is as follows: it includes symmetrically arranged columns 5101, and a connecting seat plate 5102 is provided on the upper portion of the columns 5101. The lower surface of the connecting seat plate 5102 is also connected to the upper surface of the column 5101. The upper surface of the connecting seat plate 5102 is symmetrically provided with a bearing seat 5103 hingedly connected to the flip bracket 3. The upper surface of the connecting seat plate 5102 cooperates with the flip bracket 3. The rotating shaft 31 of the flip bracket assembly 3 is mounted in conjunction with the bearing seat 5103.
[0061] The end of the limiter 36 cooperates with the upper surface of the connecting seat plate 5102 on the upper part of the support frame 51, serving as a limit for the flip bracket assembly 3, ensuring that the flip bracket assembly 3 does not exceed the maximum flip angle when flipping, and ensuring the safe transportation of the slide in the event of a failure in the driving structure of the conveyor line.
[0062] The slide guide rotation mechanism of this embodiment, during actual operation:
[0063] like Figure 4-Figure 5As shown, the output end of the cylinder 6 moves forward, driving the push seat 4 to slide forward on the fixed frame 5, and the sliding wheel 33 slides on the surface of the sliding plate 40 of the push seat 4 and lifts upward to drive the flip bracket assembly 3 to rotate around the bearing seat 5103 as a whole. After the flip bracket assembly 3 flips upward into place, the guide wheel assembly 2 is in the state of guiding the side 1 of the slide plate; conversely, the output end of the cylinder 6 moves in the opposite direction, driving the guide wheel assembly 2 to flip downward and then be in a low position.
[0064] like Figure 14 、 Figure 15 As shown, when located at the turning point of the conveyor line, a group of skateboard guide rotating mechanisms a are respectively arranged in the two perpendicular conveyor line directions. There are multiple skateboard guide rotating mechanisms a in each group. The skateboard guide rotating mechanisms a in each group are arranged side by side along the conveying direction of the skateboard c corresponding to the guide. The skateboard c is driven forward by the friction drive mechanism b arranged on the side of the skateboard c.
[0065] When the skateboard c needs to run in the Y direction, a set of guide wheel assemblies 2 of the skateboard guide rotation mechanism a arranged perpendicular to the X direction are flipped up and lifted to cooperate with the side edge 1 of the skateboard, playing a guiding role in the Y direction; at the same time, a set of guide wheel assemblies 2 of the skateboard guide rotation mechanism a arranged perpendicular to the X direction are flipped down and their posture is lower than the skateboard plane to prevent the guide wheel assemblies 2 from colliding with the skateboard c.
[0066] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.
Claims
1. A slide guide rotation mechanism, comprising a fixed frame (5), characterized in that: A support frame (51) is provided at one end of the fixed frame (5), a flip bracket (3) is installed on the upper part of the support frame (51), a cylinder (6) is installed on the upper part of the other end of the fixed frame (5), the cylinder body of the cylinder (6) is hinged to the upper surface of the fixed frame (5), a push seat (4) is installed in the middle of the fixed frame (5) in a sliding manner, the output end of the cylinder (6) is connected to the push seat (4), and the movement direction of the output end of the cylinder (6) is a horizontal straight line direction, one end of the flip bracket (3) is hinged to the support frame (51), and a guide wheel assembly (2) that matches the side of the skateboard (1) is installed on the upper side of the other end of the flip bracket (3), the flip bracket (3) below the guide wheel assembly (2) is in sliding cooperation with the upper surface of the push seat (4), and when the push seat (4) slides under the drive of the cylinder (6), it drives the flip bracket (3) to flip upward so that the guide wheel assembly (2) matches the side of the skateboard (1); The structure of the flip bracket (3) is as follows: it includes a horizontally arranged rotating shaft (31), the rotating shaft (31) is connected to the support frame (51), two connecting plates (32) are arranged in parallel and spaced apart in the middle of the rotating shaft (31), one end of the connecting plate (32) is fixedly connected to the rotating shaft (31), a sliding wheel (33) is arranged between the other ends of the two connecting plates (32), the sliding wheel (33) cooperates with the connecting plate (32), and also includes a mounting plate (34) for mounting the guide wheel assembly (2), the bottom of the mounting plate (34) is connected to the side edges of the two connecting plates (32) at the same time, and the sliding wheel (33) is slidably matched with the upper surface of the pushing seat (4); The structure of the pushing seat (4) is as follows: it includes two vertically arranged support plates (44), the bottoms of the two support plates (44) are slidably connected to the fixed frame (5), the upper ends of the two support plates (44) are installed with a sliding plate (40), the length direction of the sliding plate (40) corresponds to the movement direction of the output end of the cylinder (6), the middle part of the sliding plate (40) along the length direction is a lifting part (41), the lifting part (41) is provided with a lower transition part (42) along one end of the length direction, the lifting part (41) is provided with an upper transition part (43) along one end of the length direction, the upper surface of the lifting part (41) is an inclined plane, the upper surface of the upper transition part (43) is higher than the upper surface of the lower transition part (42), the upper surface of the lifting part (41), the upper surface of the lower transition part (42) and the upper surface of the upper transition part (43) are all slidably matched with the flip bracket (3), and the support plate (44) on one side of the upper transition part (43) is connected to the output end of the cylinder (6); The guide wheel assembly (2) has a structure comprising a central shaft (21) mounted on a flip bracket (3), the central shaft (21) being rotatably connected to a guide wheel body (22) on its periphery, and the outer circumferential surface of the guide wheel body (22) being in sliding engagement with the side edge (1) of the skateboard.
2. The slide guide rotation mechanism according to claim 1, characterized in that: A fixing block (35) with a central opening is provided on the upper surface of the mounting plate (34), and the fixing block (35) is connected to the guide wheel assembly (2).
3. The slide guide rotation mechanism according to claim 1, characterized in that: A limiting member (36) is provided on the rotating shaft (31), and an end portion of the limiting member (36) is engaged with an upper portion of the support frame (51).
4. The slide guide rotation mechanism according to claim 1, wherein: The angle between the upper surface of the lifting portion (41) and the horizontal plane is 25°-35°.
5. The slide guide rotation mechanism according to claim 1, characterized in that: The upper surface of the upper transition portion (43) is a plane parallel to the horizontal plane, and the upper surface of the upper transition portion (43) smoothly transitions to the upper surface of the lifting portion (41). The upper surface of the lower transition portion (42) is a plane parallel to the horizontal plane, and the upper surface of the lower transition portion (42) smoothly transitions to the upper surface of the lifting portion (41).
6. The slide guide rotation mechanism according to claim 1, characterized in that: One end of the central shaft (21) is mounted on the flip bracket (3) via a support seat (23). A screw rod (24) perpendicular to the axis of the central shaft (21) is provided on one side of the support seat (23). The screw rod (24) cooperates with the flip bracket (3).
7. The slide guide rotation mechanism according to claim 1, characterized in that: The structure of the support frame (51) is as follows: it includes symmetrically arranged columns (5101), a connecting seat plate (5102) is arranged on the upper part of the columns (5101), the lower surface of the connecting seat plate (5102) is simultaneously connected to the upper surface of the columns (5101), and the upper surface of the connecting seat plate (5102) is symmetrically provided with a bearing seat (5103) hinged to the flip bracket (3), and the upper surface of the connecting seat plate (5102) cooperates with the flip bracket (3).
Citation Information
Patent Citations
Sliding plate guide turnover device
CN218663851U