Sliding rail

Abstract

The utility model relates to the technical field of machine manufacturing, and provides a sliding rail which comprises a guide rail, a sliding block and a sliding block. The sliding block can be mounted on the guide rail and can slide along the guide groove; the number of the sliding tongues is two, and the two sliding tongues are assembled on the two sides of the sliding block respectively, can slide along with the sliding block and are elastically connected with the groove wall of the guide groove in an abutting mode. By designing the double-sliding-tongue structure, balanced distribution of stress is achieved, and the sliding friction area is increased, so that the friction force between the single sliding tongue and the groove wall of the guide groove can be reduced under the condition that the same friction force is generated, and the service life of the guide groove is prolonged. According to the sliding rail structure, the conditions that the sliding rail structure is eccentrically stressed, abrasion is caused by overlarge bearing load on one side, the service life is short, and sharp sound is generated in the using process can be prevented, the pressure intensity on a single sliding tongue is greatly reduced, and therefore abrasion is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, and particularly relates to a slide rail. Background Art

[0002] As a key mechanical component, the slide rail is widely used in equipment and systems that require sliding functions. Its basic structure usually includes two major components: a guide rail and a slider, mainly supporting linear motion and circular motion, among which the linear motion mode is the most commonly used. The main function of the slide rail is to achieve smooth and precise sliding between two relatively moving parts.

[0003] In traditional slide rail designs, there are two basic ways to achieve motion: rolling and sliding. Each of these two methods has its own advantages and limitations, but in application scenarios that require relatively large frictional forces, sliding friction is widely adopted due to the stable frictional force it provides. However, most of the current mainstream sliding friction structures adopt a one-way sliding tongue design. This design has an obvious problem of uneven force distribution, often resulting in one side bearing an excessive load. Under the same frictional force requirement, the one-way sliding tongue structure is prone to accelerated wear due to eccentric force, not only shortening the service life of the slide rail, but also possibly generating sharp abnormal noises during use, seriously affecting the product performance and user experience. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a slide rail with balanced force distribution and reduced wear.

[0005] To solve the above problems, the utility model provides the following technical solutions:

[0006] A slide rail, comprising:

[0007] A guide rail having a guide groove;

[0008] A slider that can be installed on the guide rail and slide along the guide groove;

[0009] Two sliding tongues, which are respectively assembled on both sides of the slider, can slide with the slider and elastically abut against the groove wall of the guide groove.

[0010] In one embodiment, the sliding tongue includes a sliding surface that can elastically abut against the groove wall of the guide groove when the sliding tongue is inserted into the guide groove.

[0011] In one embodiment, it further includes a spring, the spring is assembled on the sliding tongue, and a spring groove for assembling the spring is provided on the sliding tongue; the spring is compressed when the sliding tongue is assembled on the slider.

[0012] In one embodiment, a sliding tongue assembly groove for fitting and assembling the sliding tongue is provided in the middle of the side of the slider, and limiting feet are provided at both ends of the side of the slider. When the sliding tongue is inserted into the sliding tongue assembly groove, the sliding tongue is located between the two limiting feet.

[0013] In one embodiment, side plates are formed on both sides of the guiding groove of the guide rail, and chamfering members are provided on the sliding tongue and / or the limiting feet facing the side plates. A clearance channel is formed between the sliding tongue and / or the limiting feet and the side plates at an interval through the chamfering members.

[0014] In one embodiment, when the sliding tongue is assembled to the slider, the end facing the side plate protrudes from the end of the limiting foot facing the side plate.

[0015] In one embodiment, a first connecting member is provided in the middle of the side of the slider, and a second connecting member adapted to be connected to the first connecting member is provided on the sliding tongue; when the first connecting member and the second connecting member are connected in an adapted manner, the sliding tongue is assembled to the side of the slider.

[0016] In one embodiment, the first connecting member includes a clamping convex portion vertically protruding outward in the middle of the side of the slider, and a clamping groove is recessed inward on the sliding tongue. The sliding tongue is assembled and connected to the slider by inserting the clamping convex portion into the clamping groove.

[0017] In one embodiment, at least one oil storage groove is formed on the sliding surface of the sliding tongue;

[0018] A rolling bar is provided on the sliding surface of the sliding tongue, and the rolling bar can roll when the sliding tongue slides.

[0019] In one embodiment, one rolling bar is provided on each sliding surface, and the rolling bar is rollably installed in the oil storage groove.

[0020] The beneficial effects of the present utility model are as follows: By designing a double-sliding tongue structure, the balanced distribution of force is realized, and the sliding friction area is increased. In this way, when the same frictional force is generated, the frictional force between a single sliding tongue and the groove wall of the guiding groove can be reduced, which can prevent the situation of eccentric force on the slide rail structure, excessive wear on one side due to excessive load, low service life, and sharp noise during use, greatly reducing the pressure on a single sliding tongue, thereby reducing wear and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a perspective structure diagram of one embodiment of a slide rail of the present utility model;

[0022] Figure 2Assembly schematic diagram of one embodiment of a slide rail of the present utility model;

[0023] Figure 3 Side perspective view of one embodiment of a slide rail of the present utility model;

[0024] Figure 4 Exploded view of one embodiment of a slide rail of the present utility model;

[0025] Figure 5 Cross-sectional view of one embodiment of a slide rail of the present utility model;

[0026] Figure 6 Side view of one embodiment of a slide rail of the present utility model;

[0027] Figure 7 Structural schematic diagram of one embodiment of a slide rail of the present utility model.

[0028] Reference numerals:

[0029] 100, slide rail; 10a, guide groove; 110, guide rail; 111, slider; 112, sliding tongue; 121, sliding surface; 122, groove wall; 11a, axis of symmetry; 120, side plate; 113, spring; 123, limiting support foot; 124, chamfering part; 12a, clearance channel; 12b, spring groove; 131, connecting convex part; 13a, connecting groove; 132, clamping convex part; 13b, clamping groove; 13c, oil storage groove; 133, rolling rod; 14a, mounting hole; 141, nut. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood 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 invention, "a plurality" means two or more unless otherwise specifically defined.

[0032] For convenience of describing the first direction, the second direction, and the third direction in the embodiments of the present application, the first direction is the left - right direction in the drawings, the second direction is the front - back direction in the drawings, and the third direction is the up - down direction in the drawings. Among them, the direction of the x - axis arrow is the "right" direction in the following text, the direction of the y - axis arrow is the "up" direction in the following text, and the direction of the z - axis arrow is the "back" direction in the following text. In the actual application of the present application, this is not limited thereto.

[0033] Please refer to Figures 1-3 As shown, this embodiment provides a slide rail 100, which includes: a guide rail 110 having a guide groove 10a arranged along the first direction, a slider 111 installed on the guide rail 110 and slidable along the first direction in the guide groove 10a, and two sliding tongues 112; wherein, the two sliding tongues 112 are respectively assembled on both sides of the slider 111 along the second direction, and both of the two sliding tongues 112 can slide along with the slider 111 and keep elastically abutted against the groove wall 122 of the guide groove 10a to reduce the friction force between a single sliding tongue 112 and the groove wall 122 of the guide groove 10a.

[0034] Please refer to Figures 1-3 、 Figures 5-6 As shown, specifically, the sliding tongue 112 includes a sliding surface 121, and the sliding surface 121 elastically abuts against the groove wall 122 of the guide groove 10a when the sliding tongue 112 is inserted into the guide groove 10a; it can be understood that in this embodiment, both sides of the guide groove 10a are set as a "V" - shaped structure, so that the groove wall 122 of the guide groove 10a includes an upper end surface and a lower end surface, and the sliding surface 121 of the sliding tongue 112 is also set as two surfaces to match the upper end surface and the lower end surface of the guide groove 10a, that is, when the sliding tongue 112 is inserted into the guide groove 10a, one surface of the sliding surface 121 elastically abuts against the upper end surface of the guide groove 10a, and the other surface of the sliding surface 121 elastically abuts against the lower end surface of the guide groove 10a, so as to form two sliding tongues 112 assembled on the slider 111. And because the sliding surface 121 of the double - sliding tongues 112 has a larger area than the sliding surface of the single - sliding tongue 112, the friction force between a single sliding tongue 112 and the groove wall 122 of the guide groove 10a can be reduced under the condition of generating the same friction force. In this way, it is possible to prevent the situation of eccentric force on the slide rail structure, excessive wear on one side due to excessive load - bearing, low service life, and sharp noise during use, greatly reducing the pressure on a single sliding tongue 112, thereby reducing wear and increasing the service life; moreover, the sliding tongues 112 located on both sides of the slider 111 are symmetrically distributed with respect to the axis 11a passing through the center of the slider 111 along the sliding direction, so that the force can be effectively in an internal balanced state.

[0035] Please refer to Figures 1-5As shown, preferably, the slide rail 100 further includes a spring 113. Through the spring 113, the sliding surface 121 is elastically abutted against the groove wall 122 of the guiding groove 10a when the sliding tongue 112 is inserted into the guiding groove 10a. It can be understood that the spring 113 is assembled on the sliding tongue 112 along the second direction. There is a spring groove 12b on the slider 111. When the sliding tongue 112 is assembled on the slider 111, the spring 113 is assembled with the spring groove 12b and can be compressed by force. Further, a connecting convex portion 131 extends along the second direction on one side of the sliding tongue 112. There is a connecting groove 13a in the connecting convex portion 131. One end of the spring 113 is detachably installed in the connecting groove 13a so that the spring 113 can be replaced with different models, thereby increasing or decreasing the frictional force between the sliding surface 121 and the groove wall 122 of the guiding groove 10a. The connecting convex portion 131 extends into the spring groove 12b along the second direction and is assembled with the spring groove 12b. After the sliding surface 121 abuts against the groove wall 122 of the guiding groove 10a when the sliding tongue 112 is inserted into the guiding groove 10a, the sliding surface 121 will receive the elastic force applied by the spring 113 along the second direction, thereby generating an elastic acting force on the groove wall 122 of the guiding groove 10a, so that during the sliding process of the slider 111, the sliding tongue 112 can generate an elastic acting force with the groove wall 122 of the guiding groove 10a to rub against each other.

[0036] Please refer to Figures 1-6 As shown, preferably, in the middle of the side of the slider 111, there is a sliding tongue assembly groove for fitting and assembling the sliding tongue 112. The sides of the slider 111 are arranged on both sides of the slider 111 along the second direction and are arranged along the first direction. And the middle of the side of the slider 111 is located at the center of the side of the slider 111 along the first direction. There are limiting feet 123 at both ends of the side of the slider 111. And when the sliding tongue 112 is inserted into the slider 111, it is located between the two limiting feet 123 of the slider 111 along the first direction in the sliding direction. The function of the limiting feet 123 is to limit the slider 111 when it is inserted into the guiding groove 10a, facilitating the insertion of the slider 111 into the guiding groove 10a. And, further, in this embodiment, side plates 120 are formed on both sides of the guiding groove 10a of the guide rail. The sliding tongue 112 and the limiting feet 123 are both provided with chamfering parts 124 facing the side plates 120. And the sliding tongue 112 and the limiting feet 123 form a clearance channel 12a with the side plates 120 through the chamfering parts 124. The purpose of setting the chamfering parts 124 to form the clearance channel 12a is that the chamfering parts 124 can play a guiding role, facilitating the insertion of the slider 111 and the sliding tongue 112 into the guiding groove 10a, and can also reduce possible scratches, thereby eliminating possible abnormal noises.

[0037] Please refer to Figures 1-3 、 Figures 5-6As shown, preferably, when the sliding tongue 112 is assembled to the slider 111, the end facing the side plate 120 protrudes beyond the end of the limit support leg 123 facing the side plate 120. The purpose of this structure is that by the sliding tongue 112 protruding beyond the limit support leg 123, when the slider 111 with two sliding tongues 112 is inserted into the guide groove 10a, the sliding tongue 112 can abut against the groove wall 122 of the guide groove 10a through the sliding surface 121, so as to generate an elastic acting force on the groove wall 122 of the guide groove 10a under the action of the spring 113 to perform the next sliding operation. In another case, by pressing the sliding surface 121, the spring 113 can be compressed, so that the sliding surface 121 does not abut against the groove wall 122 of the guide groove 10a. At this time, the end of the sliding tongue 112 facing the side plate 120 does not protrude beyond the end of the limit support leg 123 facing the side plate 120. In this state, it is convenient to insert the slider 111 into the guide groove 10a or take it out of the guide groove 10a.

[0038] Preferably, the first connecting member includes a clamping convex portion 132 vertically protruding outward in the middle of the side of the slider 111. The second connecting member forms a clamping groove 13b recessed inward on the sliding tongue. The sliding tongue 112 is assembled and connected to the slider 111 by the clamping convex portion 132 being inserted into the clamping groove 13b. The clamping convex portion 132 is arranged on both sides of the spring groove 12b along the first direction and is adjacent to the limit support leg 123. The sliding tongue 112 is provided with a clamping groove 13b corresponding to the clamping convex portion 132. The purpose of setting the clamping convex portion 132 is to guide the sliding tongue 112 when it is inserted into the slider 111 and improve the firmness of the sliding tongue 112 and the slider 111 after assembly.

[0039] Please refer to Figures 1-5 As shown, preferably, the sliding tongue 112 is provided with a plurality of oil storage grooves 13c on the sliding surface 121. The plurality of oil storage grooves 13c are arranged in a row along the first direction, and any two adjacent oil storage grooves 13c are arranged at a fixed interval. The slide rail 100 further includes a rolling rod 133 pivotally connected to the sliding tongue 112. Preferably, in this embodiment, one rolling rod 133 is provided on each sliding surface 121. The rolling rod 133 can be rotatably installed in the oil storage groove 13c. The rolling rod 133 is arranged on the sliding surface 121 of the sliding tongue 112. The rolling rod 133 can rotate on the sliding tongue 112 by being pivotally connected to the sliding tongue 112. The pivot axis of the rolling rod 133 is along the second direction, and during the rotation of the rolling rod 133, as the sliding tongue 112 slides along the first direction in the guide groove 10a, it can roll on the sliding surface 121 to evenly coat a part of the grease in the oil storage groove 13c on the groove wall 122 of the guide groove 10a, and has the function of absorbing excess grease for repeated coating, so as to play an effective lubricating role.

[0040] As Figure 4and 7 As shown, preferably, an installation hole 14a is further provided at the upper end of the slider 111. In this embodiment, the slide rail 100 further includes a hardware part installed in the installation hole 14a along the third direction. A nut 141 with threads can be selected. The nut 141 is inserted into the slider 111 through the installation hole 14a, so that the plastic parts can be installed through the nut 141, avoiding a large influence on the sliding of the plastic parts when installed on the slider 111, and effectively ensuring the use quality of the plastic parts.

[0041] Specific assembly method steps:

[0042] A: Press two nuts 141 into the installation holes 14a of the slider 111 respectively;

[0043] B: Place the spring 113 into the connection groove 13a of the sliding tongue 112, and assemble the sliding tongue 112 to the corresponding position of the slider 111;

[0044] C: Continue with step B above to assemble the other sliding tongue 112;

[0045] D: Grease the two sliding tongues 112 on both sides and press in four rolling rods 133;

[0046] E: Compress the two sliding tongues 112 on both sides of the slider 111 assembly, place them into the guide groove of the guide rail 110, and apply lubricating grease. At this time, the two sliding tongues 112 retract and the spring is in a compressed state.

[0047] Implementation principle: In the pre-assembly stage of the slider 111 group, under the action of the spring 113, the sliding tongue 112 and the slider 111 form an independent combination. In the working state, the spring 113 will be further compressed to generate an elastic force F, causing a normal pressure Fn to be generated between the two sliding tongues 112 and the groove wall 122 of the guide groove 10a of the guide rail 110, thereby generating a sliding friction force. The pressure generated by this cooperation locally is the main factor leading to the wear of the mating surface components. The larger contact area of the double-sided sliding tongue 112 requires a smaller pressure to achieve the predetermined friction force. The forces on the two sliders 111 on both sides of the double-sided sliding tongue 112 structure are equal and the contact surfaces are the same. Therefore, a balanced friction force will be generated, and the resultant force of the generated friction force direction is theoretically parallel to the sliding direction. It shows smoother sliding, as Figure 1 shown; the double-sided sliding tongue 112 structure solves the problem of force balance during the force sliding process of the slider 111 combination, separates the pressure F component that generates the friction force from the component that bears the external load N, thereby reducing the change in the sliding friction force caused by the change in the external load N. The symmetrical distribution of the two sides of the slider 111 causes the overturning moment Fr of the force to be internally offset, as Figure 3 shown.

[0048] In summary, the present utility model provides a slide rail. By designing a double-sliding tongue structure, the balanced distribution of force is achieved, and the sliding friction area is increased. In this way, under the condition of generating the same frictional force, the frictional force between a single sliding tongue and the groove wall of the guide groove can be reduced, which can prevent the situation of eccentric force on the slide rail structure, excessive wear caused by overloading on one side, low service life, and sharp noise during use. The pressure on a single sliding tongue is greatly reduced, thereby reducing wear, increasing the service life, and improving the stability and quietness during the sliding process, thus effectively improving the overall performance of the slide rail.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than 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 of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A slide rail, characterized in that: include: A guide rail having a guide groove; A slider, which can be mounted on the guide rail and slide along the guide groove; The sliding tongues are two and are respectively mounted on both sides of the slider, and can slide along with the slider and elastically abut against the groove wall of the guide groove.

2. The slide rail according to claim 1, characterized in that: The sliding tongue comprises a sliding surface, and the sliding surface can elastically abut against the groove wall of the guide groove when the sliding tongue is installed in the guide groove.

3. The slide rail according to claim 1, characterized in that: It also includes a spring, which is assembled on the sliding tongue. The sliding tongue is provided with a spring groove for assembling the spring; the spring is compressed when the sliding tongue is assembled on the sliding block.

4. The slide rail according to claim 1, characterized in that: A sliding tongue assembly groove adapted for assembling the sliding tongue is provided in the middle of the side of the slider, and limiting legs are provided at both ends of the side of the slider. When the sliding tongue is installed in the sliding tongue assembly groove, the sliding tongue is located between the two limiting legs.

5. The slide rail according to claim 4, characterized in that: The guide rail forms side panels on both sides of the guide groove, and the sliding tongue and / or the limiting support foot are provided with chamfered pieces toward the side panels. The sliding tongue and / or the limiting support foot are separated from the side panels by the chamfered pieces to form a gap channel.

6. The slide rail according to claim 5, characterized in that: When the sliding tongue is assembled on the sliding block, the end portion facing the side plate protrudes beyond the end portion of the limiting support leg facing the side plate.

7. The slide rail according to claim 1, characterized in that: A first connecting piece is provided in the middle of the side of the slider, and a second connecting piece is provided on the sliding tongue to be matched and connected with the first connecting piece; when the first connecting piece is matched and connected with the second connecting piece, the sliding tongue is assembled on the side of the slider.

8. The slide rail according to claim 7, characterized in that: The first connecting member includes an embedding protrusion extending vertically outward from the middle of the side of the slider, and the second connecting member is recessed inward on the sliding tongue to form an embedding groove. The sliding tongue is embedded in the embedding groove through the embedding protrusion to be assembled and connected with the slider.

9. The slide rail according to claim 2, characterized in that: The sliding tongue is provided with at least one oil storage groove on the sliding surface; The sliding tongue is provided with a rolling rod on the sliding surface, and the rolling rod can roll when the sliding tongue slides.

10. The slide rail according to claim 9, characterized in that: A rolling rod is arranged on each of the sliding surfaces, and the rolling rod can be rotatably installed in the oil storage tank.

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