Linear guide device

Abstract

The linear guiding device comprises a guide rail, a sliding block assembly and at least one gap eliminating piece, the upper end of the guide rail is bent to form opposite extending parts, a sliding groove is formed between the guide rail and the extending parts, the sliding block assembly comprises a sliding block body, a first sliding table and two second sliding tables, and the first sliding table and the second sliding table are arranged on the sliding block body. The first sliding table and the second sliding table are arranged on the two sides of the sliding block body respectively and arranged in the sliding groove in a sliding mode, a groove body is formed in the lower end of the sliding block body, the gap eliminating piece comprises a first connecting part and a second connecting part, the first connecting part extends into the groove body, and the second connecting part extends into the groove body. The two ends of the second connecting part abut against the two second sliding tables respectively, a first guiding and limiting structure is arranged at the joint of the first connecting part and the groove body, and a second guiding and limiting structure is arranged at the joint of the second connecting part and the second sliding tables. By designing the anti-backlash piece, the gap between the sliding block assembly and the guide rail can be effectively reduced or eliminated, meanwhile, the first guide limiting structure and the second guide limiting structure are designed, it is ensured that the anti-backlash piece and the sliding block body are stably connected, and it is avoided that the anti-backlash piece collides with the guide rail to generate abnormal sound and affect user experience.

Description

Technical Field

[0001] The utility model relates to the technical field of guide rails, and particularly to a linear guiding device. Background Art

[0002] With the booming development of the automotive industry, more and more consumers expect the interior design of vehicles to be full of a sense of technology. To achieve this goal, in-vehicle components increasingly adopt motion mechanisms, such as flipping, sliding, telescoping, lifting, etc., to enrich the user's interaction experience. However, the introduction of these complex motion mechanisms also poses higher requirements for the accuracy and stability of linear motion mechanisms.

[0003] In the prior art, guide rails and sliders are often used to achieve the guiding and bearing functions, and by designing a backlash eliminator, the gap between the guide rail and the slider is reduced. However, there is no reliable guiding and fixing structure between the slider itself and the backlash eliminator. After assembly, the gap between the backlash eliminator and the slider is large and the consistency is poor. Due to the slight differences in the guide rail at different positions, the resistance of the slider is different when it moves along the guide rail to different positions, resulting in unstable force on the backlash eliminator, and the situation of sudden acceleration and impact on the slider after jamming, generating impact abnormal sounds, which affects the user experience. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a linear guiding device. By designing a backlash eliminator, the gap between the slider assembly and the guide rail can be effectively reduced or eliminated. At the same time, a first guiding and limiting structure and a second guiding and limiting structure are designed to ensure the stable connection between the backlash eliminator and the slider body, and to avoid the backlash eliminator hitting the guide rail under force, which affects the user experience.

[0005] A linear guiding device includes a guide rail, a slider assembly and at least one backlash eliminator. The upper end of the guide rail is bent to form opposite extension parts, and a chute is formed between the guide rail and the extension parts. The slider assembly includes a slider body, a first slide table and two second slide tables. The first slide table and the second slide tables are respectively arranged on both sides of the slider body and slide in the chute. A groove body is arranged at the lower end of the slider body. The backlash eliminator includes a first connecting part and a second connecting part. The first connecting part extends into the groove body, and both ends of the second connecting part are respectively abutted against the two second slide tables. A first guiding and limiting structure is arranged at the connection between the first connecting part and the groove body, and a second guiding and limiting structure is arranged at the connection between the second connecting part and the second slide table.

[0006] In the above technical solution, by providing at least one clearance eliminating member, the clearance between the slider assembly and the guide rail can be effectively reduced or eliminated. The first connecting portion of the clearance eliminating member extends into the groove of the slider body, while the second connecting portion abuts against the two second sliding tables, enabling the slider body to maintain close contact with the guide rail during the sliding process, thereby improving the sliding accuracy and stability. The slider assembly adopts the design of a first sliding table and two second sliding tables. The first sliding table and the two second sliding tables are respectively arranged on both sides of the slider body and slide in the chute. The design of multi-point contact enhances the connection stability between the slider assembly and the guide rail, reduces the shaking or deviation caused by single-point contact, and improves the stability of the entire device. The design of the first guiding and limiting structure and the second guiding and limiting structure ensures the stable connection between the clearance eliminating member and the slider assembly, prevents the clearance eliminating member from loosening or falling off during operation, and thereby improves the reliability and service life of the device. By designing the clearance eliminating member, the present utility model can effectively reduce or eliminate the clearance between the slider assembly and the guide rail; at the same time, the first guiding and limiting structure and the second guiding and limiting structure are designed to ensure the stable connection between the clearance eliminating member and the slider assembly, prevent the clearance eliminating member from loosening or falling off during operation, and thus avoid the impact between the clearance eliminating member and the slider assembly, generating abnormal noises and affecting the user experience.

[0007] Further, the first guiding and limiting structure includes a first boss and a first clamping groove. The first boss and the first clamping groove are respectively arranged on the groove body and the first connecting portion, and the first boss is engaged with the first clamping groove.

[0008] In the above technical solution, the engagement between the first boss and the first clamping groove ensures the precise positioning of the first connecting portion of the clearance eliminating member within the groove of the slider body. This precise positioning not only helps to reduce the clearance caused by position deviation but also ensures that the clearance eliminating member can correctly play its role in reducing the clearance and improving the accuracy.

[0009] Further, the second guiding and limiting structure includes a second boss and a second clamping groove. The second boss and the second clamping groove are respectively arranged on the slider body and the second connecting portion, and the second boss is engaged with the second clamping groove.

[0010] In the above technical solution, the engagement between the second boss and the second clamping groove ensures the stable connection between the second connecting portion of the clearance eliminating member and the slider body. This connection not only prevents the clearance eliminating member from shaking or deviating during operation but also enhances the structural strength of the entire slider assembly and improves the stability of the device. Through the engagement design of the second boss and the second clamping groove, the second connecting portion of the clearance eliminating member can be more precisely positioned on the slider body. This precise positioning helps to reduce the clearance caused by position deviation, thereby improving the sliding accuracy and accuracy.

[0011] Further, it also includes an elastic member, and both ends of the elastic member are respectively abutted against the slider body and the first connecting portion.

[0012] In the above technical solution, the elastic member can provide dynamic clearance compensation during the sliding process of the slider. Since the clearance between mechanical components may change due to temperature variations, wear, or manufacturing errors, the elastic member can be fine-tuned and compensated according to the actual situation to ensure that there is always a tight contact between the slider assembly and the guide rail, thereby improving the sliding accuracy and stability.

[0013] Further, the first connecting portion is provided with a limiting groove, and at least a part of the elastic member extends into the limiting groove.

[0014] In the above technical solution, the limiting groove provides a stable installation position for the elastic member, preventing lateral movement or distortion of the elastic member during operation. This stable connection ensures that the elastic member can more effectively play its role in dynamically compensating for clearances and reducing vibrations.

[0015] Further, first oil storage grooves are provided on the surfaces of the first sliding table in contact with the extension portion, the second sliding table in contact with the extension portion, and the second connecting portion in contact with the extension portion.

[0016] In the above technical solution, the first oil storage grooves can store a certain amount of lubricating oil or grease to ensure that these contact surfaces can be continuously lubricated during the sliding process of the slider body. This design not only reduces friction and wear, improves the sliding efficiency and service life, but also reduces noise and vibrations, enhancing the overall performance and user experience of the device.

[0017] Further, second oil storage grooves are provided on the surfaces of the first sliding table in contact with the guide rail, the second sliding table in contact with the guide rail, and the second connecting portion in contact with the guide rail.

[0018] In the above technical solution, the second oil storage grooves are located on the surfaces in contact with the guide rail and can more effectively deliver lubricating oil or grease to the contact points. This direct lubrication method ensures that the friction between the guide rail and the sliding table during the sliding process is minimized, improving the smoothness and accuracy of the sliding.

[0019] Further, a plurality of mounting portions are provided at the upper end of the slider body.

[0020] In the above technical solution, the plurality of mounting portions provide more connection and fixing points for the slider body. This means that users can flexibly select the mounting positions and methods according to actual needs and application scenarios, thereby better integrating the slider into mechanical equipment.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1. A clearance eliminating part is designed. The clearance eliminating part includes a first connecting part and a second connecting part. The first connecting part extends into the groove body of the slider body, and the second connecting part abuts against two second sliding platforms. This design aims to reduce or eliminate the gap between the slider and the guide rail through the interaction between the two parts of the clearance eliminating part, and improve the sliding accuracy and stability.

[0023] 2. A first guiding and limiting structure and a second limiting structure are designed, which ensure the stable connection between the clearance eliminating part and the slider assembly, prevent the clearance eliminating part from loosening or falling off during the working process, and thus avoid the impact between the clearance eliminating part and the slider assembly, generating abnormal noises and affecting the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the linear guiding device according to an embodiment of the present utility model.

[0025] Figure 2 It is a schematic assembly structural diagram of the slider assembly and the clearance eliminating part according to an embodiment of the present utility model.

[0026] Figure 3 It is a schematic structural diagram of the slider assembly according to an embodiment of the present utility model.

[0027] Figure 4 It is a schematic diagram of the clearance eliminating part according to an embodiment of the present utility model.

[0028] Figure 5 It is a schematic structural diagram of the slider assembly and the clearance eliminating part from another angle according to an embodiment of the present utility model.

[0029] DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS

[0030] 1. Guide rail; 101. Extension part; 102. Slide groove;

[0031] 2. Slider assembly; 201. Slider body; 2011. Groove body; 2012. First convex platform; 2013. Second convex platform; 2014. Installation part; 202. First sliding platform; 203. Second sliding platform;

[0032] 3. Clearance eliminating part; 301. First connecting part; 3011. First clamping groove; 3012. Limiting groove; 302. Second connecting part; 3021. Second clamping groove;

[0033] 4. Elastic part; 5. First oil storage tank; 6. Second oil storage tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The linear guiding device of the present utility model will be further described in detail below in conjunction with specific embodiments and the accompanying drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0035] Please refer to Figures 1 to 3 , in a preferred embodiment, the linear guiding device of the present utility model includes a guide rail 1, a slider assembly 2, and at least one backlash eliminator 3. The upper end of the guide rail 1 is bent to form opposite extension parts 101, and a chute 102 is formed between the guide rail 1 and the extension parts 101. The slider assembly 2 includes a slider body 201, a first slide 202, and two second slides 203. The first slide 202 and the second slides 203 are respectively arranged on both sides of the slider body 201 and slide in the chute 102. A groove 2011 is provided at the lower end of the slider body 201. The backlash eliminator 3 includes a first connecting part 301 and a second connecting part 302. The first connecting part 301 extends into the groove 2011, and both ends of the second connecting part 302 are in contact with the two second slides 203 respectively. A first guiding and limiting structure is provided at the connection between the first connecting part 301 and the groove 2011, and a second guiding and limiting structure is provided at the connection between the second connecting part 302 and the second slide 203.

[0036] It can be seen from the above technical solution that by providing at least one backlash eliminator 3, the gap between the slider assembly 201 and the guide rail 1 can be effectively reduced or eliminated. The first connecting part 301 of the backlash eliminator 3 extends into the groove 2011 of the slider body 2, and the second connecting part 302 is in contact with the two second slides 203, so that the slider body 201 can maintain close contact with the guide rail 1 during the sliding process, thereby improving the sliding accuracy and stability. The slider assembly 2 adopts the design of a first slide 202 and two second slides 203. The first slide 202 and the two second slides 203 are respectively arranged on both sides of the slider body 201 and slide in the chute 102. The design of multi-point contact enhances the connection stability between the slider assembly 2 and the guide rail 1, reduces the shaking or offset caused by single-point contact, and improves the stability of the entire device. The design of the first guiding and limiting structure and the second guiding and limiting structure ensures the stable connection between the backlash eliminator 3 and the slider assembly 2, prevents the backlash eliminator 3 from loosening or falling off during the working process, and thus improves the reliability and service life of the device. By designing the backlash eliminator 3, the present utility model can effectively reduce or eliminate the gap between the slider assembly 2 and the guide rail 1; at the same time, the first guiding and limiting structure and the second guiding and limiting structure are designed to ensure the stable connection between the backlash eliminator 3 and the slider assembly 2, prevent the backlash eliminator 3 from loosening or falling off during the working process, and thus avoid the collision between the backlash eliminator 3 and the slider assembly 2, generating abnormal noises and affecting the user experience.

[0037] In one embodiment, please refer to Figure 3, the first guiding and limiting structure includes a first boss 2012 and a first slot 3011. The first boss 2012 and the first slot 3011 are respectively provided on the groove body 2011 and the first connecting portion 301, and the first boss 2012 is engaged with the first slot 3011. The engagement between the first boss 2012 and the first slot 3011 ensures the precise positioning of the first connecting portion 301 of the clearance eliminating member 3 within the groove body 2011 of the slider body 201. This precise positioning not only helps to reduce the clearance caused by position deviation, but also ensures that the clearance eliminating member 3 can correctly play its role of reducing clearance and improving accuracy. The engagement connection is a stable connection method, which can resist the influence of external vibration, impact and other factors on the connection stability. Therefore, the engagement design between the first boss 2012 and the first slot 3011 makes the connection between the clearance eliminating member 3 and the slider body 201 more stable and reliable, and extends the service life of the device. The existence of the first guiding and limiting structure enables the clearance eliminating member 3 to fit more closely on the slider body 201, thereby further reducing the clearance between the slider assembly 2 and the guide rail 1. This close fit not only improves the sliding accuracy and stability, but also helps to reduce the noise and vibration caused by excessive clearance, and enhances the overall performance of the device.

[0038] In an embodiment, the second guiding and limiting structure includes a second boss 2013 and a second slot 3021. The second boss 2013 and the second slot 3021 are respectively provided on the slider body 201 and the second connecting portion 302, and the second boss 2013 is engaged with the second slot 3021. The engagement between the second boss 2013 and the second slot 3021 ensures the stable connection between the second connecting portion 302 of the clearance eliminating member 3 and the slider body 201. This connection not only prevents the clearance eliminating member 3 from shaking or shifting during operation, but also enhances the structural strength of the entire slider assembly 2 and improves the stability of the device. Through the engagement design between the second boss 2013 and the second slot 3021, the second connecting portion 302 of the clearance eliminating member 3 can be more precisely positioned on the slider body 201. This precise positioning helps to reduce the clearance caused by position deviation, thereby improving the sliding accuracy and accuracy.

[0039] Furthermore, please refer to Figure 4, the present utility model further includes an elastic member 4, and both ends of the elastic member 4 are respectively abutted against the slider body 201 and the first connecting portion 301. The elastic member 4 can provide dynamic clearance compensation during the sliding process of the slider. Since the clearances between mechanical components may change due to temperature variations, wear, or manufacturing errors, the elastic member 4 can be finely adjusted according to the actual situation to ensure that there is always close contact between the slider assembly 2 and the guide rail 1, thereby improving the sliding accuracy and stability. As a buffer element, the elastic member 4 can effectively absorb and disperse the vibrations and impacts generated during the sliding process of the slider. This can not only reduce the noise during the operation of the device but also protect other mechanical components from the influence of vibrations and extend the service life of the entire equipment.

[0040] Specifically, the first connecting portion 301 is provided with a limiting groove 3012, and at least a part of the elastic member 4 extends into the limiting groove 3012. The limiting groove 3012 provides a stable installation position for the elastic member 4 and prevents the lateral movement or distortion of the elastic member 4 during the working process. This stable connection ensures that the elastic member 4 can more effectively play its role in dynamically compensating for clearances and reducing vibrations. At the same time, extending a part of the elastic member 4 into the limiting groove 3012 can reduce the direct contact area between the elastic member 4 and other components, thereby reducing the wear rate. In addition, the limiting groove 3012 can also prevent the elastic member 4 from failing due to excessive deformation, further improving the durability of the device.

[0041] It should be noted that first oil storage grooves 5 are provided on the surfaces where the first sliding table 202 contacts the extension portion 101, the surfaces where the second sliding table 203 contacts the extension portion 101, and the surfaces where the second connecting portion 302 contacts the extension portion 101. The first oil storage grooves 5 can store a certain amount of lubricating oil or grease to ensure that these contact surfaces can be continuously lubricated during the sliding process of the slider body 201. This design not only reduces friction and wear, improves the sliding efficiency and service life, but also reduces noise and vibrations, enhancing the overall performance and user experience of the device. At the same time, the first oil storage grooves 5 can also accommodate the powder worn and dropped during the friction between the slider body 201 and the guide rail 1 to keep the mating surfaces clean.

[0042] At the same time, second oil storage grooves 6 are provided on the surfaces where the first sliding table 202 contacts the guide rail 1, the surfaces where the second sliding table 203 contacts the guide rail 1, and the surfaces where the second connecting portion 302 contacts the guide rail 1. The second oil storage grooves 6 are located on the surfaces in contact with the guide rail 1 and can more effectively deliver lubricating oil or grease to the contact points. This direct lubrication method ensures that the friction between the guide rail and the sliding table during the sliding process is minimized, improving the smoothness and accuracy of the sliding. It should be noted that greases placed in the second oil storage grooves 6 need to be selected with a higher viscosity to avoid the grease falling out of the second oil storage grooves 6 under the action of gravity.

[0043] In this embodiment, a plurality of mounting portions 2014 are provided at the upper end of the slider body 201. The plurality of mounting portions 2014 provide more connection and fixing points for the slider body 201. This means that users can flexibly select the mounting positions and methods according to actual requirements and application scenarios, so as to better integrate the slider into mechanical equipment.

[0044] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0045] In addition, the terms "first" and "second" are only used for descriptive purposes and should not 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 present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0046] In the present utility model, unless otherwise clearly specified and limited, terms such as "mounting", "connecting", "coupling", "fixing", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.

Claims

1. A linear guiding device, characterized in that, It includes a guide rail, a slider assembly and at least one backlash eliminator. The upper end of the guide rail is bent to form opposite extension parts, and a chute is formed between the guide rail and the extension parts. The slider assembly includes a slider body, a first slide table and two second slide tables. The first slide table and the second slide tables are respectively arranged on both sides of the slider body and slide in the chute. A groove body is provided at the lower end of the slider body. The backlash eliminator includes a first connecting part and a second connecting part. The first connecting part extends into the groove body, and both ends of the second connecting part are respectively abutted against the two second slide tables. A first guiding and limiting structure is provided at the connection between the first connecting part and the groove body, and a second guiding and limiting structure is provided at the connection between the second connecting part and the second slide table.

2. The linear guiding device according to claim 1, characterized in that The first guiding and limiting structure includes a first boss and a first clamping groove. The first boss and the first clamping groove are respectively arranged on the groove body and the first connecting part, and the first boss is clamped with the first clamping groove.

3. The linear guiding device according to claim 1, characterized in that, The second guiding and limiting structure includes a second boss and a second clamping groove. The second boss and the second clamping groove are respectively arranged on the slider body and the second connecting part, and the second boss is clamped with the second clamping groove.

4. The linear guiding device according to claim 1, characterized in that, It further includes an elastic member, and both ends of the elastic member are respectively abutted against the slider body and the first connecting part.

5. The linear guide device according to claim 4, characterized in that The first connecting part is provided with a limiting groove, and at least part of the elastic member extends into the limiting groove.

6. The linear guiding device according to claim 1, characterized in that First oil storage grooves are provided on the surfaces where the first slide table contacts the extension part, the surfaces where the second slide tables contact the extension part, and the surface where the second connecting part contacts the extension part.

7. The linear guiding device according to claim 1, characterized in that, Second oil storage grooves are provided on the surfaces where the first slide table contacts the guide rail, the surfaces where the second slide tables contact the guide rail, and the surface where the second connecting part contacts the guide rail.

8. The linear guide device according to claim 1, characterized in that, A plurality of mounting parts are provided at the upper end of the slider body.

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