Screw and sliding rail assembly

Abstract

The embodiment of the utility model provides a screw and a sliding rail assembly. The screw comprises a screw body and a column body, the column body is provided with a stepped through hole, and the cross section area of a first hole section in the stepped through hole is larger than that of a second hole section in the stepped through hole; the screw body comprises a screw head and a screw rod, the screw rod penetrates through the stepped through hole, and the screw head penetrates through the first hole section and cannot penetrate through the second hole section. Thus, the movable part can slide in the groove of the sliding rail through the column body, and when the screw body and the column body need to be detached, the screw body and the column body can be detached as a whole.

Description

Technical Field

[0001] This application relates to the technical field of hardware components, and particularly to a screw and a slide rail assembly. Background Art

[0002] In the field of mechanical design and manufacturing, there are various connection methods between components to adapt to different functional requirements and working environments. As a common connection and guiding component, a slide rail can provide a stable linear or curved motion trajectory. However, in certain specific scenarios, components do not always need to be connected to the slide rail. This flexible connection method design aims to improve the versatility, adaptability, and maintenance convenience of the equipment.

[0003] In the prior art, the connection between a component and a slide rail is often a sliding connection through a slide rail nail riveted on the component. The slide rail nail is placed at the predetermined positions of the slide rail and the component, and pressure is applied through a special riveting device. As the pressure increases, the riveting part of the slide rail nail undergoes plastic deformation to form a tight connection with the slide rail and the component.

[0004] However, once the riveted slide rail nail is installed, it cannot be disassembled by non-destructive means. When the component no longer needs to be connected to the slide rail, the slide rail nail on the component is not easy to disassemble, and the protruding slide rail nail may cause the component to collide with the placement environment such as a cabinet, damaging the component. Utility Model Content

[0005] An embodiment of this application provides a screw and a slide rail assembly to solve the problem that the existing slide rail nails are not easy to disassemble.

[0006] On the one hand, an embodiment of this application provides a screw, including: a screw body and a column body. Among them,

[0007] The column body is provided with a stepped through hole, and the cross-sectional area of the first hole section in the stepped through hole is larger than the cross-sectional area of the second hole section in the stepped through hole;

[0008] The screw body includes a screw head and a screw rod. The screw rod passes through the stepped through hole, and the screw head passes through the first hole section and cannot pass through the second hole section.

[0009] In a possible implementation manner, the screw further includes a spring. The spring is movably sleeved between the column body and the screw rod. One end of the spring is in contact connection with the lower surface of the screw head, and the other end of the spring is in contact connection with the transition surface between the first hole section and the second hole section.

[0010] In a possible implementation manner, the shape of the column body is a frustum of a cone, and the area of the upper bottom surface of the column body is larger than the area of the lower bottom surface of the column body.

[0011] In a possible implementation manner, a limiting protrusion is provided at the upper opening of the first hole section, and the inner diameter of the limiting protrusion is smaller than the diameter of the screw head.

[0012] In a possible implementation, a thread groove is provided on the outer side of the bottom of the screw, and the starting end of the thread groove is flush with the bottom surface of the column body.

[0013] On the other hand, an embodiment of the present application provides a slide rail assembly, including: a slide rail and a screw. Among them,

[0014] The slide rail includes a transverse fixed rail, and a groove is provided on the transverse fixed rail;

[0015] The screw of the screw is detachably arranged in the screw holes on both sides of the movable part, and the column body of the screw is movably connected to the groove, so that the movable part and the slide rail are slidably connected. The screw is the screw of any one of the above.

[0016] In a possible implementation, the groove is a closed-end groove, and the area of the opening surface in the closed-end groove is smaller than the area of the bottom surface in the closed-end groove.

[0017] In a possible implementation, the slide rail further includes a longitudinal fixed rail, the longitudinal fixed rail is arranged at the end of the transverse fixed rail, and a fixing hole is provided on the longitudinal fixed rail.

[0018] In a possible implementation, the slide rail assembly further includes fixing pieces, and the fixing pieces are arranged at the left and right ends of the front surface of the movable part.

[0019] In a possible implementation, the slide rail assembly further includes fixing screws. When the movable part slides into the slide rail, the fixing pieces are aligned with the fixing holes, and the fixing screws pass through the fixing pieces and the fixing holes for fixation.

[0020] For the screw and the slide rail assembly provided by the embodiment of the present application, by providing a stepped through hole on the column body, the cross-sectional area of the first hole segment in the stepped through hole is larger than the cross-sectional area of the second hole segment in the stepped through hole; the screw body includes a screw head and a screw, the screw passes through the stepped through hole, the screw head passes through the first hole segment and cannot pass through the second hole segment, so that the screw can roll in the groove of the slide rail, and the screw head cannot pass through the bottom of the column body through hole, which can prevent the screw body from accidentally falling off during disassembly. When disassembly is required, the screw body and the column body are removed as a whole, achieving the effect of convenience and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present application, and are used together with the description to explain the principles of the present application.

[0022] Figure 1 It is an exploded view of the screw provided by the embodiment of the present application;

[0023] Figure 2 It is a cross-sectional view of the screw provided by the embodiment of the present application;

[0024] Figure 3 Structural schematic of the slide rail assembly provided by the embodiment of the present application Figure 1 ;

[0025] Figure 4 Structural schematic of the slide rail assembly provided by the embodiment of the present application Figure 2 ;

[0026] Figure 5 Structural schematic of the slide rail assembly provided by the embodiment of the present application Figure 3 ;

[0027] Figure 6 Relative position one of the slide rail assembly and the movable part provided by the embodiment of the present application;

[0028] Figure 7 Relative position two of the slide rail assembly and the movable part provided by the embodiment of the present application.

[0029] Reference signs:

[0030] 10 - Screw; 20 - Slide rail; 30 - Movable part; 40 - Fixed piece; 50 - Fixed screw; 100 - Screw body; 110 - Screw head; 111 - Hexagonal groove; 120 - Screw rod; 121 - Thread groove; 200 - Column body; 210 - Limit protrusion; 300 - Spring; 400 - Horizontal fixed rail; 410 - Groove; 500 - Vertical fixed rail; 510 - Fixed hole.

[0031] Through the above drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed description of the specific embodiments

[0032] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0033] In the embodiments of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0034] In addition, in the embodiments of the present application, orientation terms such as "upper", "lower", "left", and "right" are defined relative to the orientation of the components shown in the drawings. It should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and they can change accordingly with the change of the orientation of the components placed in the drawings.

[0035] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium.

[0036] In the embodiments of the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0037] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0038] In the prior art, the sliding connection between a component and a slide rail is often achieved through a slide rail nail riveted on the component. The slide rail nail is placed at the predetermined positions of the slide rail and the component, and pressure is applied by a special riveting device. As the pressure increases, the riveted part of the slide rail nail undergoes plastic deformation to form a tight connection with the slide rail and the component.

[0039] For the screw and slide rail assembly provided in the present application, a stepped through hole is provided in the column body, and the cross-sectional area of the first hole section in the stepped through hole is larger than that of the second hole section in the stepped through hole; the screw body includes a screw head and a screw rod. The screw rod passes through the stepped through hole, and the screw head passes through the first hole section but cannot pass through the second hole section, enabling the screw to roll in the groove of the slide rail. The screw head cannot pass through the bottom of the column body through hole, which can prevent the screw body from accidentally falling off during disassembly. When disassembly is required, the screw body and the column body are removed as a whole, achieving the effect of convenience and high efficiency.

[0040] The following uses specific embodiments to elaborate in detail on the technical solution of the present application and how the technical solution of the present application solves the above technical problems. These several specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0041] Referring to Figures 1 to 2 , an embodiment of the present application provides a screw. Among them, the screw 10 may include: a screw body 100 and a column body 200.

[0042] Specifically, the screw body 100 includes a screw head 110 and a screw rod 120. The cross-sectional area of the screw head 110 is larger than the cross-sectional area of the screw rod 120. The cross-sectional area of the first hole section in the column body 200 is larger than the cross-sectional area of the second hole section. At the same time, the cross-sectional area of the second hole section is larger than or equal to the cross-sectional area of the screw rod 120, the cross-sectional area of the second hole section is smaller than the cross-sectional area of the screw head 110, and the cross-sectional area of the first hole section is larger than or equal to the cross-sectional area of the screw head 110.

[0043] Furthermore, a limit protrusion 210 may be provided at the upper opening of the first hole section so that the screw head 110 cannot break away from the upper opening of the first hole section after entering the first hole section, ensuring that the screw body 100 and the column body 200 are an integral body. Among them, the limit protrusion 210 may be an annular protrusion, and its inner diameter is slightly smaller than the diameter of the screw head 110. When the screw head 110 passes through the first hole section and contacts the annular protrusion, due to the diameter limitation, the screw head 110 will not be able to continue rising and break away from the opening. The limit protrusion 210 may also be an elastic buckle, which can undergo elastic deformation when subjected to an external force and allow the screw head 110 to pass through. When the screw head 110 enters the first hole section and crosses the locking point of the elastic buckle, the elastic buckle will return to its original state to prevent the screw head 110 from breaking away from the opening.

[0044] Even further, the screw 10 further includes a spring 300. The spring 300 is movably sleeved between the column body 200 and the screw rod 120. One end of the spring 300 is in contact connection with the lower surface of the screw head 110, and the other end of the spring 300 is in contact connection with the transition surface between the first hole section and the second hole section. Among them, the effective number of turns, the active stroke, and the wire diameter of the spring 300 can be set according to specific requirements. For example, when the dimensional tolerance of the scenario where the screw 10 is applied is 1 mm, the effective number of turns of the spring 300 can be set to 1 turn, and the wire diameter can be set to 0.5 mm, that is, the thickness after being completely compressed is 0.5 mm. The active stroke of the spring 300 in the radial direction is 1.1 mm, which is greater than the installation dimensional tolerance, and can absorb the deviation caused by the tolerance, reducing the risk of damage caused by dimensional mismatch.

[0045] In the embodiments of the present application, by setting a spring between the column body and the screw, elastic buffering can be provided to absorb the deviation caused by tolerances and make the connection between the two connected parts tighter. During later maintenance, it may be necessary to frequently disassemble the screw, and the built-in spring can reduce the risk of hardware damage caused by difficult disassembly.

[0046] In some embodiments, the shape of the column body 200 is a frustum of a cone. The frustum shape is beneficial for dispersing stress when subjected to external forces and avoiding damage caused by stress concentration. A hexagonal groove 111 is provided on the upper surface of the screw head 110, and a hexagonal wrench or hexagonal handle can be used to tighten or loosen the screw 10. A thread groove 121 is provided on the outer side of the bottom of the screw rod 120. When the upper surface of the screw head 110 is flush with the upper surface of the column body 200, the starting end of the thread groove 121 is flush with the lower surface of the column body 200, which can make it easier to judge the tightening degree of the screw 10 during installation and avoid problems caused by the screw 10 being too tight or too loose.

[0047] The installation process of each component in the screw 10 can be as follows: First, the spring 300 is sleeved on the screw rod 120, and then the screw body 100 and the spring 300 are placed into the column body 200 together. At this time, the screw rod 120 is in the second hole section of the column body 200, the screw head 110 is flush with the upper surface of the column body 200, and the spring 300 is between the column body 200 and the screw rod 120. Then, the screw head 110 is pressed into the first hole section of the column body 200 by a pressing method to complete the integration.

[0048] In the embodiments of the present application, by setting the shape of the column body as a frustum of a cone, setting a hexagonal groove on the screw head, and setting a thread groove at the bottom of the screw rod, the stability, strength, and convenience of the connection can be improved. At the same time, it also has a certain anti-loosening function and is easy to disassemble.

[0049] See Figures 3 to 5 , the embodiments of the present application provide a slide rail assembly, wherein the slide rail assembly may include: a slide rail 20 and a screw 10.

[0050] Specifically, the slide rail 20 includes a transverse fixed rail 400. The transverse fixed rail 400 can be installed on a carrier, such as a rack or a chassis for accommodating a movable part, so that the movable part can move smoothly and accurately. A groove 410 is provided on the transverse fixed rail 400. The screw 10 can be movably connected to the groove 410 through the column body 200 and connected to the screw hole of the movable part 30 through the thread groove 121. When the movable part 30 does not need to be slidably connected to the slide rail 20, it is necessary to disassemble the screw 10. At this time, the column body 200 can be taken out of the groove 410, and the connection between the thread groove 121 and the screw hole can be loosened through the hexagonal groove 111 to completely separate the screw 10.

[0051] Among them, the movable part 30 can be a box, a board, etc. Screw holes are distributed on the left and right sides of the movable part 30. When the movable part 30 needs to cooperate with the slide rail 20, screws 10 are arranged on the screw holes on the left and right sides of the movable part 30, and then the left and right sides of the movable part 30 are respectively snapped into the horizontal fixed rail 400 through the screws 10.

[0052] Further, the groove 410 can be a constricted groove, and the area of the opening surface is smaller than that of the bottom surface, which matches the frustum shape of the column body 200, forming a self-locking effect similar to a wedge, so that the column body 200 can be automatically locked after being snapped into the groove 410, and is not easy to loosen or fall off, thereby enhancing the structural stability.

[0053] When the screw 10 is subjected to a force to disengage from the horizontal fixed rail 400, the screw head 110 moves towards the bottom surface of the column body 200, and the spring 300 inside the screw 10 is compressed to generate elastic deformation. Since the moving stroke of the spring 300 is greater than the installation tolerance dimension, the force received by the screw 10 can be completely absorbed, protecting the screw 10, the movable part 30 and the horizontal fixed rail 400 from being damaged.

[0054] By arranging a constricted groove on the horizontal fixed rail in the embodiment of the present application, a stable cooperation between the slide rail and the screw can be achieved, the installation process is simplified, and the durability is improved.

[0055] See Figures 6 to 7 , in the embodiment of the present application, the slide rail 20 can further include a longitudinal fixed rail 500. The longitudinal fixed rail 500 is arranged at both ends of the horizontal fixed rail 400 to form an inverted I shape. Fixing holes 510 are also arranged on the longitudinal fixed rail 500. The number and height position of the fixing holes 510 can be set according to specific situations. When the height of the movable part 30 is relatively high, the height of the fixing holes 510 can be correspondingly set at a higher position on the longitudinal fixed rail 500. When the weight of the movable part 30 is relatively large, multiple fixing holes 510 can be arranged on the longitudinal fixed rail 500 to enhance the fixing effect.

[0056] The slide rail assembly can further include a fixing piece 40 and a fixing screw 50. The fixing piece 40 can be arranged at the left and right ends of the front surface of the movable part 30. When it is necessary to fix the movable part 30 and the slide rail 20, it is unfolded and protrudes out of the front surface of the movable part 30. When it is not needed, it can be folded and retracted to the front surface of the movable part 30. When fixing is required, the fixing screw 50 passes through the fixing piece 40 and the fixing hole 510 in sequence to fix the fixing piece 40 and the fixing hole 510 together, preventing the movable part 30 from continuing to slide on the horizontal fixed rail 400.

[0057] In the embodiment of the present application, by providing a longitudinal fixing rail and a fixing piece, it is possible to lock the moving part after it completely enters the transverse fixing rail. In scenarios where it is necessary to ensure that the moving part remains stationary, such as during transportation and maintenance, it can prevent the moving part from accidentally moving due to vibration or external force, protecting the safety of internal equipment and personnel.

[0058] In summary, the screw provided by the embodiment of the present application is easy to disassemble. The frustum-shaped column body can enable the screw to roll or slide in the slide rail groove to achieve the movable connection between the moving part and the slide rail. When the moving part needs to be connected to the slide rail, install the screw on the moving part and snap the column body of the screw into the slide rail groove. When the moving part does not need to be connected to the slide rail, remove the column body of the screw from the slide rail groove, and then loosen the screw on the moving part with a hex wrench or a hex handle so that the moving part is not restricted by the non-removable screw with a protrusion, avoiding the situation where the moving part collides with other anti-collision environments such as the cabinet. When the moving part needs to be fixed after being connected to the slide rail, the fixing pieces on both sides of the front of the moving part can be fixedly connected to the longitudinal fixing rail, so that the moving part cannot move in the transverse fixing rail and cannot escape from the transverse fixing rail, avoiding situations such as the accidental escape of the moving part or sliding too deep into the track, protecting the safety of equipment and personnel.

[0059] The serial numbers of the embodiments of the present application above are only for description and do not represent the superiority or inferiority of the embodiments. The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present application.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A screw, characterized in that, Comprising: A screw body and a column body, wherein, The column body is provided with a stepped through hole, and the cross-sectional area of the first hole section in the stepped through hole is larger than the cross-sectional area of the second hole section in the stepped through hole; The screw body includes a screw head and a screw rod, the screw rod passes through the stepped through hole, and the screw head passes through the first hole section and cannot pass through the second hole section.

2. The screw according to claim 1, characterized in that, The screw further includes a spring, the spring is movably sleeved between the column body and the screw rod, one end of the spring is in contact connection with the lower surface of the screw head, and the other end of the spring is in contact connection with the transition surface between the first hole section and the second hole section.

3. The screw according to claim 1, characterized in that, The shape of the column body is a frustum of a cone, and the area of the upper bottom surface of the column body is larger than the area of the lower bottom surface of the column body.

4. The screw according to claim 1, characterized in that, A limiting protrusion is provided at the upper opening of the first hole section, and the inner diameter of the limiting protrusion is smaller than the diameter of the screw head.

5. The screw according to claim 1, characterized in that, A thread groove is formed on the outer side of the bottom of the screw rod, and the starting end of the thread groove is flush with the bottom surface of the column body.

6. A slide rail assembly, characterized in that, Comprising: A slide rail and the screw according to any one of claims 1 to 5, wherein, The slide rail includes a transverse fixed rail, and a groove is formed in the transverse fixed rail; The screw rod of the screw is detachably arranged in screw holes on both sides of the movable part, and the column body of the screw is movably connected with the groove, so that the movable part and the slide rail are slidably connected.

7. The slide rail assembly according to claim 6, characterized in that, The groove is a closed-end groove, and the area of the opening surface in the closed-end groove is smaller than the area of the bottom surface in the closed-end groove.

8. The slide rail assembly according to claim 6, wherein, The slide rail further includes a longitudinal fixed rail, the longitudinal fixed rail is arranged at the end of the transverse fixed rail, and a fixing hole is formed in the longitudinal fixed rail.

9. The slide rail assembly according to claim 8, wherein, The slide rail assembly further includes a fixing piece, and the fixing piece is arranged at the left and right ends of the front surface of the movable part.

10. The slide rail assembly according to claim 9, wherein, The slide rail assembly further includes a fixing screw. After the movable part slides into the slide rail, the fixing piece is aligned with the fixing hole, and the fixing screw passes through the fixing piece and the fixing hole for fixing.

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