Plastic sliding structure

Abstract

This utility model relates to a plastic sliding structure, including a support plate and a sliding member slidably disposed on the support plate. The support plate includes a first support surface, a second support surface, and a sliding hole penetrating the first and second support surfaces. The sliding member includes a sliding body, a connecting plate extending from the sliding body toward the first sliding surface toward the second support surface, and a baffle disposed at the end of the connecting plate away from the first sliding surface. The baffle includes a second sliding surface. The connecting plate passes through the sliding hole. The first sliding surface is slidably connected to the first support surface, and the second sliding surface is slidably connected to the second support surface. A reinforcing rib is provided between the connecting plate and the sliding body to ensure that the distance between the first and second sliding surfaces is maintained within a preset range. The plastic sliding structure designed in this utility model can effectively solve the problems of jamming caused by plastic shrinkage in low-temperature environments and noise caused by increased gaps in high-temperature environments.

Description

Technical Field

[0001] This utility model relates to the field of sliding structure technology, and in particular to a plastic sliding structure. Background Technology

[0002] In recent years, with the rapid development of industrial automation and lightweight design, plastic tracks have been widely used in various sliding guide systems due to their advantages such as low cost, convenient installation, and excellent self-lubricating properties. Compared with traditional metal tracks, plastic tracks have a significant cost advantage. Their raw materials are cheaper, the production process is mature, and mass production can be achieved through injection molding or extrusion molding, thus significantly reducing manufacturing and installation costs. Furthermore, plastic materials themselves have self-lubricating properties, eliminating the need for additional lubricating oil and reducing maintenance frequency during operation. However, plastic materials also have certain limitations. Because plastic parts shrink at low temperatures, the sliding structure of the track may become stuck, affecting its smooth operation. In addition, under high temperatures, the gaps between plastic components may increase due to uneven thermal expansion, generating noise during sliding, affecting user experience and equipment stability. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to design a plastic sliding structure that can effectively solve the problems of jamming caused by plastic shrinkage in low-temperature environments and noise caused by increased gaps in high-temperature environments.

[0004] The objective of this utility model is achieved through the following technical solution: A plastic sliding structure is designed, including a support plate and a sliding member slidably disposed on the support plate. The support plate includes a first support surface, a second support surface, and a sliding hole penetrating the first and second support surfaces. The sliding member includes a sliding body, a connecting plate extending from the sliding body toward the first sliding surface toward the second support surface, and a baffle disposed on the connecting plate at an end away from the first sliding surface. The baffle includes a second sliding surface. The connecting plate penetrates the sliding hole. The first sliding surface is slidably connected to the first support surface, and the second sliding surface is slidably connected to the second support surface. A reinforcing rib is provided between the connecting plate and the sliding body. The reinforcing rib can ensure that the distance between the first and second sliding surfaces is maintained within a preset range.

[0005] In this design, all components can be manufactured using plastic injection molding, resulting in low cost. Furthermore, plastic materials offer advantages such as self-lubrication, corrosion resistance, and a low coefficient of friction, making them suitable for oil-free lubrication environments. The first sliding surface and the first supporting surface, as well as the second sliding surface and the second supporting surface, form upper and lower double sliding guide surfaces. This double sliding guide surface design effectively prevents deflection and jamming during sliding, improving the smoothness and guiding accuracy of the movement. Reinforcing ribs are placed between the connecting plate and the sliding body to effectively resist bending stress and shear force generated during sliding. Plastic materials exhibit significant thermal expansion and contraction. In low-temperature environments, the connecting plate contracts, causing the baffle to move and reducing the distance between the first and second sliding surfaces, potentially leading to jamming in the sliding structure. In high-temperature environments, the connecting plate expands, causing the baffle to move and increasing the distance between the first and second sliding surfaces, resulting in increased noise during the operation of the sliding structure. By setting reinforcing ribs, when the connecting plate contracts or expands, the reinforcing ribs contract or expand synchronously, which can pull the baffle in the opposite direction, so that the baffle is slightly tilted to keep the distance between the first sliding surface and the second sliding surface within the preset range, thereby solving the problem of jamming that may occur in the sliding structure in low temperature environment and the problem of increased noise in high temperature environment.

[0006] Furthermore, the baffle and the reinforcing rib are located on two opposite sides of the connecting plate.

[0007] In this design, baffles and reinforcing ribs are distributed on both sides of the connecting plate, forming a couple effect. When the baffle is subjected to external loads (such as lateral impact or continuous pressure), the reinforcing ribs provide support in the opposite direction, effectively counteracting the bending moment. Furthermore, the distribution of baffles and reinforcing ribs on both sides of the connecting plate ensures that the reinforcing ribs maintain the spacing accuracy between the first and second sliding surfaces.

[0008] Furthermore, the reinforcing rib is vertically disposed between the first sliding surface and the side of the connecting plate, and extends from the end of the connecting plate away from the first sliding surface to the first sliding surface.

[0009] In this design, the reinforcing ribs extend vertically from the end of the connecting plate to the first sliding surface, forming a continuous rigid skeleton in the load-bearing area of ​​the sliding component, thereby enhancing the overall stability of the sliding component.

[0010] Furthermore, the cross-section of the reinforcing rib is trapezoidal.

[0011] In this design, the wide base of the trapezoidal cross section increases the contact area with the sliding body, improves shear resistance, ensures that the distance between the first sliding surface and the second sliding surface remains constant during the sliding process, and enhances the overall stability of the sliding component.

[0012] Furthermore, the cross-section of the reinforcing rib is triangular.

[0013] In this design, the wide base design of the triangular cross section increases the contact area with the sliding body, improves shear resistance, ensures that the distance between the first sliding surface and the second sliding surface remains constant during the sliding process, and enhances the overall stability of the sliding component.

[0014] Furthermore, at least two reinforcing ribs are provided, and they are symmetrically distributed with the center line of the side of the connecting plate as the axis of symmetry.

[0015] In this design, multiple reinforcing ribs ensure that the distance between the first and second sliding surfaces remains constant during the sliding process, thus avoiding guide surface failure due to deformation of the connecting plate.

[0016] Furthermore, two baffles are provided, and the two baffles are symmetrically distributed with respect to the center line of the first sliding surface perpendicular to the sliding direction.

[0017] In this design, the double baffles and the second support surface of the support plate form a double sliding contact surface, which can improve the trajectory accuracy of the sliding component.

[0018] Furthermore, the first support surface is provided with two slide rail grooves symmetrically on both sides of the sliding hole with the center line of the radial section of the sliding hole as the axis of symmetry. The two slide rail grooves extend along the sliding direction. The first sliding surface is rolled and embedded with balls, and the balls are rolled and embedded in the two slide rail grooves one by one.

[0019] In this design, the uniform distribution of the balls forms multi-point continuous support, and the balls are embedded in the slide rail groove to form rolling friction, reducing the direct wear of the first sliding surface. The two slide rail grooves are symmetrically distributed around the center line of the sliding hole to form a balanced support system. The balls are evenly distributed under force, avoiding unilateral wear or jamming.

[0020] Furthermore, the second support surface is provided with two slide rail grooves symmetrically on both sides of the sliding hole with the center line of the radial section of the sliding hole as the axis of symmetry. The two slide rail grooves extend along the sliding direction. The second sliding surface is rolled and embedded with balls, and the balls are rolled and embedded in the two slide rail grooves one by one.

[0021] In this design, the balls are embedded in the slide rail groove to form rolling friction, reducing the direct wear of the second sliding surface. The two slide rail grooves are symmetrically distributed around the center line of the sliding hole to form a parallel guide reference, effectively suppressing jamming or shaking caused by off-center loading.

[0022] Furthermore, the support plate is provided with a notch communicating with the sliding hole, and the notch allows the baffle to pass through.

[0023] In this solution, by setting a notch, the assembly process of the sliding parts can be simplified and the assembly efficiency improved.

[0024] Compared with the prior art, the beneficial effects of this utility model are: In this design, all components can be manufactured using plastic injection molding, resulting in low cost. Furthermore, plastic materials offer advantages such as self-lubrication, corrosion resistance, and a low coefficient of friction, making them suitable for oil-free lubrication environments. The first sliding surface and the first supporting surface, as well as the second sliding surface and the second supporting surface, form upper and lower double sliding guide surfaces. This double sliding guide surface design effectively prevents deflection and jamming during sliding, improving the smoothness and guiding accuracy of the movement. Reinforcing ribs are placed between the connecting plate and the sliding body to effectively resist bending stress and shear force generated during sliding. Plastic materials exhibit significant thermal expansion and contraction. In low-temperature environments, the connecting plate contracts, causing the baffle to move and reducing the distance between the first and second sliding surfaces, potentially leading to jamming in the sliding structure. In high-temperature environments, the connecting plate expands, causing the baffle to move and increasing the distance between the first and second sliding surfaces, resulting in increased noise during the operation of the sliding structure. By setting reinforcing ribs, when the connecting plate contracts or expands, the reinforcing ribs contract or expand synchronously, which can pull the baffle in the opposite direction, so that the baffle is slightly tilted to keep the distance between the first sliding surface and the second sliding surface within the preset range, thereby solving the problem of jamming that may occur in the sliding structure in low temperature environment and the problem of increased noise in high temperature environment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a plastic sliding structure according to the present invention.

[0026] Figure 2 This is a top view of the support plate according to an embodiment of the present invention.

[0027] Figure 3 This is a bottom view of the support plate according to an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the sliding component according to an embodiment of the present invention.

[0029] Figure 5 This is a structural schematic diagram of the sliding component from another perspective of one embodiment of the present invention.

[0030] Illustration: 1. Support plate; 11. First support surface; 12. Second support surface; 13. Sliding hole; 14. Slide rail groove; 15. Notch; 2. Sliding component; 21. Sliding body; 22. Connecting plate; 23. Baffle; 24. Reinforcing rib; 25. Ball bearing; 211. First sliding surface; 231. Second sliding surface. Detailed Implementation

[0031] To facilitate understanding of this invention, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the invention. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0032] like Figures 1 to 5 As shown, this embodiment provides a plastic sliding structure that can be used in a vehicle-mounted wireless charger. The plastic sliding structure includes a support plate 1 and a sliding member 2 slidably disposed on the support plate 1. The support plate 1 includes a first support surface 11, a second support surface 12, and a sliding hole 13 penetrating the first support surface 11 and the second support surface 12. In this embodiment, the support plate 1 has a rectangular structure, and the sliding hole 13 is a rectangular hole located at the middle position of the support plate 1 and extending along the length direction of the support plate 1. The extending direction of the sliding hole 13 is the sliding direction of the sliding member 2. It should be noted that the support plate 1 is not an independent component; it is disposed on other support structures and forms an integral part therewith. The sliding component 2 includes a sliding body 21, a connecting plate 22 extending from the sliding body 21 toward the first supporting surface 11 toward the second supporting surface 12 via a first sliding surface 211, and a baffle 23 disposed at the end of the connecting plate 22 away from the first sliding surface 211. The angle between the connecting plate 22 and the sliding body 21 is greater than 90°. The baffle 23 includes a second sliding surface 231. The connecting plate 22 passes through a sliding hole 13. The first sliding surface 211 is slidably connected to the first supporting surface 11, and the second sliding surface 231 is slidably connected to the second supporting surface 12. A reinforcing rib 24 is provided between the connecting plate 22 and the sliding body 21. The reinforcing rib 24 can ensure that the distance between the first sliding surface 211 and the second sliding surface 231 is maintained within a preset range. It should be noted that the preset range means that the distance between the first sliding surface 211 and the second sliding surface 231 will not fluctuate significantly when the connecting plate 22 expands and contracts thermally, thus preventing low-temperature jamming and high-temperature loosening of the sliding structure. The preset range is related to the type of plastic material and the structural dimensions of the sliding part 2, and is not specifically limited here.

[0033] In this embodiment, all components can be manufactured using plastic injection molding, resulting in low cost. Furthermore, plastic materials possess advantages such as self-lubrication, corrosion resistance, and a low coefficient of friction, making them suitable for oil-free lubrication environments. The first sliding surface 211 and the first supporting surface 11, and the second sliding surface 231 and the second supporting surface 12, form upper and lower double sliding guide surfaces. This double sliding guide surface design effectively prevents deflection and jamming during the sliding process, improving the smoothness and guiding accuracy of the movement. Reinforcing ribs 24 are positioned between the connecting plate 22 and the sliding body 21, effectively resisting bending stress and shear force generated during the sliding process. Plastic materials exhibit significant thermal expansion and contraction. In low-temperature environments, the contraction of the connecting plate 22 causes the baffle 23 to move, reducing the distance between the first sliding surface 211 and the second sliding surface 231, potentially leading to jamming in the sliding structure. In high-temperature environments, the expansion of the connecting plate 22 causes the baffle 23 to move, increasing the distance between the first sliding surface 211 and the second sliding surface 231, resulting in increased noise during the operation of the sliding structure. By setting the reinforcing rib 24, when the connecting plate 22 contracts or expands, the reinforcing rib 24 contracts or expands synchronously, which can pull the baffle 23 in the opposite direction, so that the baffle 23 is slightly tilted to keep the distance between the first sliding surface 211 and the second sliding surface 231 within the preset range, thereby solving the problem of jamming that may occur in the sliding structure in low temperature environment and the problem of increased noise in high temperature environment.

[0034] It should be noted that the baffle 23 and the reinforcing rib 24 are located on opposite sides of the connecting plate 22. The baffle 23 and the reinforcing rib 24, distributed on both sides of the connecting plate 22, form a couple effect. When the baffle 23 is subjected to external loads (such as lateral impact or continuous pressure), the reinforcing rib 24 provides support in the opposite direction, effectively counteracting the bending moment. Furthermore, the baffle 23 and the reinforcing rib 24, distributed on both sides of the connecting plate 22, allow the reinforcing rib 24 to maintain the spacing accuracy between the first sliding surface 211 and the second sliding surface 231.

[0035] Furthermore, such as Figure 4 and 5As shown, the reinforcing rib 24 has a trapezoidal cross-section and is vertically disposed between the first sliding surface 211 and the side of the connecting plate 22, extending from the end of the connecting plate 22 away from the first sliding surface 211 to the first sliding surface 211. The reinforcing rib 24 extends vertically from the end of the connecting plate 22 to the first sliding surface 211, forming a continuous rigid skeleton in the load-bearing area of ​​the sliding member 2, enhancing the overall stability of the sliding member 2. The wide base design of the trapezoidal cross-section increases the contact area with the sliding body 21, improving shear resistance and ensuring a constant distance between the first sliding surface 211 and the second sliding surface 231 during sliding, thus enhancing the overall stability of the sliding member 2. Of course, in other possible embodiments, the reinforcing rib 24 can also be configured in other shapes, such as having a triangular cross-section. Furthermore, at least two reinforcing ribs 24 are provided, and they are symmetrically distributed about the centerline of the side of the connecting plate 22 as the axis of symmetry. The design of multiple reinforcing ribs 24 ensures that the distance between the first sliding surface 211 and the second sliding surface 231 remains constant during the sliding process, avoiding guide surface failure due to deformation of the connecting plate 22. In this embodiment, three reinforcing ribs 24 are provided. The middle reinforcing rib 24 is located at the centerline of the side of the connecting plate 22, and the reinforcing ribs 24 on both sides are symmetrically distributed about the centerline of the side of the connecting plate 22. Furthermore, such as Figure 4 and 5 As shown, in this embodiment, two baffles 23 are provided, and the two baffles 23 are symmetrically distributed with the first sliding surface 211 perpendicular to the centerline of the sliding direction. The two baffles 23 form a double sliding contact surface with the second support surface 12 of the support plate 1, which can improve the trajectory accuracy of the sliding component 2. The support plate 1 is provided with two sets of notches 15 that connect to the sliding hole 13, and the notches 15 allow the baffles 23 to pass through. The distance between the two sets of notches 15 is the same as the distance between the two baffles 23, thereby ensuring that the baffles 23 can pass through the notches 15 to extend under the support plate 1. By providing the notches 15, the assembly process of the sliding component 2 can be simplified and the assembly efficiency improved.

[0036] Furthermore, such as Figure 2 and Figure 3As shown, in this embodiment, the first support surface 11 has two symmetrically arranged slide rail grooves 14 on both sides of the sliding hole 13 with the center line of the radial section of the sliding hole 13 as the axis of symmetry. The two slide rail grooves 14 extend along the sliding direction. The first sliding surface 211 is rolled with balls 25, which are rolled and embedded in the two slide rail grooves 14 one by one. In this embodiment, the first sliding surface 211 is rolled with four balls 25, and two balls are embedded in each slide rail groove 14. The uniform distribution of the balls 25 forms a multi-point continuous support. The balls 25 embedded in the slide rail grooves 14 form rolling friction, reducing the direct wear of the first sliding surface 211. The two slide rail grooves 14 are symmetrically distributed with the center line of the sliding hole 13 to form a balanced support system. The balls 25 are evenly distributed with force, avoiding unilateral wear or jamming. The second support surface 12 has two symmetrically arranged slide rail grooves 14 on both sides of the sliding hole 13 with the centerline of the radial section of the sliding hole 13 as the axis of symmetry. The two slide rail grooves 14 extend along the sliding direction. The second sliding surface 231 is rolled with balls 25, which are rolled and embedded in the two slide rail grooves 14 one by one. The second sliding surface 231 of each baffle 23 is rolled with two balls 25, corresponding to the two slide rail grooves 14 respectively. The balls 25 are embedded in the slide rail grooves 14 to form rolling friction, which reduces the direct wear of the second sliding surface 231. The two slide rail grooves 14 are symmetrically distributed with the centerline of the sliding hole 13 to form a parallel guide reference, which effectively suppresses jamming or shaking caused by off-center loading.

[0037] It should be noted that in this embodiment, the ball bearing 25 is a spherical ball bearing, and the corresponding groove of the slide rail groove 14 has an arc-shaped cross-section. In other possible embodiments, the number of slide rail grooves 14 on the first support surface 11 and the second support surface 12 can also be set to other numbers, such as four grooves respectively; the type of ball bearing 25 can also be set to other types, such as cylindrical ball bearings.

[0038] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, the inclusion of "first," "second," etc., in a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic slip structure, characterized by, The device includes a support plate and a sliding member slidably disposed on the support plate. The support plate includes a first support surface, a second support surface, and a sliding hole penetrating the first and second support surfaces. The sliding member includes a sliding body, a connecting plate extending from the sliding body toward the first support surface toward the second support surface, and a baffle disposed on the connecting plate at an end away from the first sliding surface. The baffle includes a second sliding surface. The connecting plate penetrates the sliding hole. The first sliding surface is slidably connected to the first support surface, and the second sliding surface is slidably connected to the second support surface. A reinforcing rib is provided between the connecting plate and the sliding body. The reinforcing rib can ensure that the distance between the first and second sliding surfaces is maintained within a preset range.

2. The plastic slip structure of claim 1, wherein The baffle and the reinforcing rib are located on two opposite sides of the connecting plate.

3. The plastic slip structure of claim 2, wherein The reinforcing rib is vertically disposed between the first sliding surface and the side of the connecting plate, and extends from the end of the connecting plate away from the first sliding surface to the first sliding surface.

4. The plastic sliding structure according to claim 3, characterized in that, The cross-section of the reinforcing rib is trapezoidal.

5. The plastic sliding structure according to claim 3, characterized in that, The cross-section of the reinforcing rib is triangular.

6. The plastic sliding structure according to claim 3, characterized in that, At least two reinforcing ribs are provided, and they are symmetrically distributed with the center line of the side of the connecting plate as the axis of symmetry.

7. The plastic sliding structure according to claim 1, characterized in that, Two baffles are provided, and the two baffles are symmetrically distributed with respect to the center line of the first sliding surface perpendicular to the sliding direction.

8. The plastic sliding structure according to claim 7, characterized in that, The first support surface has two slide rail grooves symmetrically arranged on both sides of the sliding hole with the center line of the radial section of the sliding hole as the axis of symmetry. The two slide rail grooves extend along the sliding direction. The first sliding surface is rolled and embedded with balls, and the balls are rolled and embedded in the two slide rail grooves one by one.

9. The plastic sliding structure according to claim 8, characterized in that, The second support surface has two slide rail grooves symmetrically arranged on both sides of the sliding hole with the center line of the radial section of the sliding hole as the axis of symmetry. The two slide rail grooves extend along the sliding direction. The second sliding surface is rolled and embedded with balls, and the balls are rolled and embedded in the two slide rail grooves one by one.

10. The plastic sliding structure according to claim 9, characterized in that, The support plate has a notch that connects to the sliding hole, and the notch allows the baffle to pass through.

Images