Friction sliding rail

Abstract

The friction sliding rail comprises a sliding rail body, a sliding block and a sliding body which are arranged in a split mode, a mounting cavity is formed in the sliding rail body, a pair of guide grooves guiding in the first direction are symmetrically formed in the two sides of the mounting cavity, the sliding block is arranged in the mounting cavity, and the sliding block is arranged in the sliding body. A pair of mounting grooves are symmetrically formed in the two sides of the sliding block in the first direction; a sliding body is detachably arranged between at least one guide groove and one mounting groove, the wall surface of the sliding body is an arc surface, the sliding body can slide on the inner wall of the guide groove, and the sliding body comprises a column core on the inner layer and a column sleeve surface on the outer layer. By means of the self-lubricating sliding body which is detachably installed, stable assembly between the sliding rail and the sliding block is guaranteed, continuous and stable friction force can be achieved between the sliding rail and the sliding block, meanwhile, the sliding rail can be prevented from derailing when bearing large external force in the structural design, and the original functions of the sliding rail are kept to the maximum extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sliding rails, in particular to a friction sliding rail. BACKGROUND

[0002] The basic function of a sliding rail is guiding. In the field of automobiles, sliding rails have been applied in some new scenarios, such as storage boxes, glove boxes, car refrigerators, armrests, leg rests, headrests and other products that need relative sliding. With the popularity of electric vehicles, users have higher requirements for the sliding feel, force and noise. The existing sliding rails often have problems such as uneven pulling force, shaking noise and insufficient bearing capacity, which affect the use effect of sliding rails in some new scenarios. Therefore, it is urgent to propose a new friction sliding rail that can overcome the above problems. CONTENT OF THE INVENTION

[0003] Therefore, in order to further ensure the use effect of the sliding rail, the embodiment provides a friction sliding rail, which comprises a sliding rail body, the sliding rail body is provided with a mounting cavity, and a pair of guide grooves in a first direction is symmetrically arranged on both sides of the mounting cavity;

[0004] A sliding block is arranged in the mounting cavity, and a pair of mounting grooves is symmetrically arranged on both sides of the sliding block in the first direction.

[0005] A sliding body is detachably arranged between at least one of the guide grooves and one of the mounting grooves, the wall surface of the sliding body is an arc surface, the arc surface abuts against the inner wall of the guide groove, and the arc surface can slide on the inner wall of the guide groove.

[0006] Preferably, the sliding body comprises a core and a sleeve located outside the core, and the wall surface of the sleeve close to the guide groove is an arc surface.

[0007] Preferably, the core is a cylinder, and the sleeve is a sleeve pipe sleeved outside the core.

[0008] Preferably, each of the mounting grooves is provided with a stop portion on both sides in the first direction.

[0009] Preferably, the height of the end surface of the stop portion close to the guide groove is less than the height of the end surface of the wall surface of the sliding body close to the guide groove.

[0010] Preferably, the stop portion is integrally formed with the sliding block.

[0011] Preferably, the sliding rail body comprises a bottom plate and a pair of side plates extending in a second direction from the bottom plate, respectively, and a pair of guide grooves are arranged on the opposite inner walls of a pair of side plates, respectively.

[0012] Preferably, the arc surface of the wall surface of the sliding body is configured as a sliding contact surface for sliding along the first direction on the inner wall of the guide groove.

[0013] Preferably, the arc surface of the wall surface of the sliding body is made of a solid self-lubricating material.

[0014] Compared with the prior art, the application has the following advantages:

[0015] (1) The application has a pair of sliding bodies movably installed between the slide rail and the slide block, the wall surface of the sliding bodies is configured to be in sliding contact with the inner wall of the guide groove, and the wall surface of the sliding bodies is made of a solid self-lubricating material, thereby ensuring stable assembly between the slide rail and the slide block, and at the same time, the sliding is smooth, the noise is small, and the slide rail and the slide block can have a sustained and stable friction force.

[0016] (2) In the application, the sliding bodies and the slide rail and the slide block are very easy to disassemble and assemble, which facilitates the replacement and reuse of the sliding bodies by users.

[0017] (3) The sliding body is composed of a metal column core and a column sleeve with a self-lubricating function, which ensures the installation strength of the sliding body and at the same time makes the entire product have a good self-lubricating friction effect.

[0018] (4) By setting an arc-shaped mounting groove and a sliding body with an arc-shaped wall surface, the sliding body and the mounting groove have an arc-shaped contact surface, which ensures a good sliding friction effect.

[0019] (5) The stop portion can limit the sliding body from separating from the slide block in the first direction, prevent the sliding body from being pulled out of the slide rail guide groove, thereby causing the separation of the slide block and the slide rail and causing the sliding function to fail, and has an overload protection function. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described below in conjunction with the drawings and embodiments:

[0021] Figure 1 It is a whole schematic view of a friction slide rail of the application;

[0022] Figure 2 It is a cross-sectional schematic view of a friction slide rail of the application;

[0023] Figure 3 It is an exploded view of a friction slide rail of the application;

[0024] Figure 4 It is a structural schematic view of a sliding body in an embodiment of the application;

[0025] Figure 5 It is a structural schematic view of a sliding body in another embodiment of the application;

[0026] Figure 6 This is a schematic structural diagram of the stopper in an embodiment of the present application;

[0027] Figure 7 Schematic cross-section of the slide rail body in the embodiment of the present application.

[0028] Among them, 1. Slide rail body, 11. Bottom plate, 12. Side plate, 2. Mounting cavity, 3. Guide groove, 4. Slider, 5. Mounting groove, 51. Stopper, 511. First stopper, 512. Second stopper, 6. Sliding body, 61. Column core, 62. Column sleeve. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of this application more clear, the following embodiments of this application will be further described in detail with reference to the accompanying drawings. Obviously, the described embodiment is only one embodiment of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0030] The “embodiment” referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present application. In the description of the embodiments of the present application, it should be understood that the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as “first”, “second” and “third” may explicitly or implicitly include one or more of the features. Moreover, the terms “first”, “second” and “third” are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms “including” and “for” and any variations thereof are intended to cover non-exclusive inclusions.

[0031] like Figures 1-2 As shown, this embodiment provides a friction slide rail, including a slide rail body 1, a mounting cavity 2 being provided on the slide rail body 1, a slider 4 being installed in the mounting cavity 2, and the slider 4 being able to slide back and forth along a first direction in the mounting cavity 2. In order to further ensure the stability of the slider 4 installed in the mounting cavity 2, this embodiment installs a sliding body 6 between the slider 4 and the mounting cavity 2, and the sliding body 6 is split from the slider 4 and the slide rail body 1 respectively. By arranging the sliding body 6 in the gap between the slider 4 and the mounting cavity 2, the slider 4 and the mounting cavity 2 have a stable fit.

[0032] like Figure 3In order to ensure that the slider 4 and the mounting cavity 2 can stably reciprocate in the first direction, a pair of guide grooves 3 along the first direction are symmetrically arranged on the two sides of the inner wall of the mounting cavity 2, and a pair of mounting grooves 5 along the first direction are symmetrically arranged on the two sides of the slider 4.

[0033] The sliding body 6 is provided in pairs, and the two sliding bodies 6 are respectively arranged between one of the guide grooves 3 and one of the mounting grooves 5, so that one sliding body 6 is arranged between the pair of guide grooves 3 and the pair of mounting grooves 5, respectively, and the pair of sliding bodies 6 are stably arranged between the guide grooves 3 and the mounting grooves 5, while the gap between the guide grooves 3 and the mounting grooves 5 is controlled to ensure that the two wall surfaces of the sliding body 6 abut against the guide grooves 3 and the mounting grooves 5, respectively, thereby limiting the position of the slider 4 in the mounting cavity 2 and providing stable support for the reciprocating sliding of the slider 4 in the mounting cavity 2.

[0034] The above content of the embodiment ensures that the slider 4 can be stably supported in the mounting cavity 2, as shown in Figure 4 In order to further ensure that the slider 4 can be stably supported in the mounting cavity 2 while reducing the friction between the slider 4 and the mounting cavity 2, the sliding body 6 in the embodiment includes an inner layer of a column core 61 and a column sleeve 62 located outside the column core 61. In general, the material of the column core 61 is metal, and the material of the column sleeve 62 is solid lubricating material. During normal sliding, the self-lubricating column sleeve 62 can reduce friction and sliding noise, and the inner layer of the metal column core 61 can provide certain strength support to ensure normal sliding. In the embodiment, the column core 61 is a cylinder, and the column sleeve 62 is a sleeve pipe sleeved outside the column core 61. Thus, while ensuring that the sliding body 6 has greater strength, the friction between the column sleeve 62 with lubricating function and the guide groove 3 is further reduced. In the embodiment, the wall surface of the column sleeve 62 close to the guide groove 3 is also arranged as an arc surface with an arc similar to that of the guide groove 3, so that the contact area between the column sleeve 62 and the guide groove 3 is further reduced, and the friction between the column sleeve 62 and the guide groove 3 is further reduced.

[0035] As shown in Figure 5 In other embodiments of the present application, the sliding body 6 is a cylindrical body designed in one piece, and the material thereof is solid self-lubricating material. This design can also ensure that the sliding rail has better stability in some use scenarios.

[0036] As shown in Figure 6As shown, a pair of stop portions 51 are arranged on both sides of the sliding block 4, and the stop portions 51 on both sides of the sliding block 4 are mirror image arranged in the embodiment. Taking the stop portion 51 on one side as an example, the stop portion 51 is distributed on both sides of the mounting groove 5 along the first direction, and includes a first stop portion 511 and a second stop portion 512. In the embodiment, the first stop portion 511 and the second stop portion 512 are integrally formed with the sliding block 4. The wall surface of the first stop portion 511 and the second stop portion 512 close to the guide groove 3 is an arc surface, and the radius of the arc surface is smaller than the arc surface radius of the column sleeve 62 in the sliding body 6. Thus, the first stop portion 511 and the second stop portion 512 are prevented from contacting the guide groove 3 during the movement of the sliding block 4. At the same time, the first stop portion 511 and the second stop portion 512 limit the sliding body 6 in the mounting groove 5. When the sliding block 4 is subjected to a larger external force, the sliding block 4 is prevented from being pulled out of the slide rail body 1 to cause derailment failure, and the stability of the cooperation between the sliding block 4 and the slide rail body 1 is further ensured.

[0037] As shown, Figure 7 The slide rail body 1 includes a bottom plate 11 and a pair of side plates 12 extending from the bottom plate 11 to the second direction respectively. A pair of guide grooves 3 are arranged on the inner walls opposite to each other of the pair of side plates 12. The guide grooves 3 are semicircular in shape. The mounting grooves 5 on both sides of the sliding block 4 are also semicircular in shape. The opposite semicircular guide grooves 3 and mounting grooves 5 form a space in the shape of a circle for accommodating the sliding body 6. The whole structure is clever in design and compact in space utilization, and good use effect is achieved in actual use.

[0038] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A friction slide rail characterized by, The application relates to a slide rail body (1) provided with a mounting cavity (2) and a pair of guide grooves (3) symmetrically arranged on both sides of the mounting cavity (2) and guiding in a first direction. A sliding block (4) is arranged in the mounting cavity (2), and a pair of mounting grooves (5) are symmetrically arranged on both sides of the sliding block (4) in the first direction. A sliding body (6) is detachably arranged between at least one guide groove (3) and one mounting groove (5), the wall surface of the sliding body (6) is an arc surface, the arc surface abuts against the inner wall of the guide groove (3) and can slide on the inner wall of the guide groove (3). The sliding body (6) comprises a column core (61) of an inner layer and a column sleeve (62) located outside the column core (61), and the wall surface of the column sleeve (62) close to the guide groove (3) is an arc surface.

2. A friction slide rail according to claim 1, characterized in that The column core (61) is a cylinder, and the column sleeve (62) is a sleeve pipe sleeved outside the column core (61).

3. A friction slide rail according to claim 2, wherein Each mounting groove (5) is respectively provided with a stop portion (51) on both sides in the first direction.

4. A friction slide rail according to claim 3, wherein The stop portion (51) comprises a first stop portion (511) and a second stop portion (512) oppositely arranged in the first direction, and the sliding body (6) is arranged between the first stop portion (511) and the second stop portion (512).

5. A friction slide rail according to claim 4, wherein The wall surface of the stop portion (51) is an arc surface, and the distance from the wall surface of the stop portion (51) close to the guide groove (3) to the guide groove (3) is smaller than the distance from the wall surface of the sliding body (6) close to the guide groove (3) to the guide groove (3).

6. A friction slide rail according to claim 5, wherein The stop portion (51) is integrally formed with the sliding block (4), and after the sliding block (4) is assembled in the mounting cavity (2), the stop portion (51) does not contact the guide groove (3).

7. A friction slide rail according to claim 6, wherein The slide rail body (1) comprises a bottom plate (11) and a pair of side plates (12) respectively extending from the bottom plate (11) in a second direction, and a pair of guide grooves (3) are respectively arranged on the inner walls opposite to each other of the pair of side plates (12).

8. A friction slide rail according to claim 7, wherein The arc surface arranged on the wall surface of the sliding body (6) is configured as a sliding contact surface sliding on the inner wall of the guide groove (3) in the first direction.

9. A friction slide rail according to any one of claims 1-8, characterized in that The arc surface of the wall surface of the sliding body (6) is made of a solid self-lubricating material.

10. A friction slide rail according to claim 9, wherein ​

Images