CN211969312U - A friction damping locking mechanism and slide rail - Google Patents

Abstract

The utility model discloses a friction damping locking mechanism and a sliding rail. The friction damping locking mechanism comprises: an upper casing, the bottom of the upper casing is provided with a first groove, and a first groove is fixedly connected in the first groove A first guide column; a lower casing, a second groove is arranged on the top of the lower casing, and a second guide column is fixedly connected in the second groove; a compression spring, the compression spring is simultaneously sleeved on the first guide column the outside of the guide column and the second guide column; the stop boss, the stop boss is fixedly connected to the bottom of the lower shell; wherein, the upper shell and the lower shell are clamped and the lower shell can be opposite to the upper shell Body up and down activities. The utility model has the advantages of simple structure, few parts and simple assembly.

Description

A friction damping locking mechanism and slide rail

technical field

The utility model relates to the technical field of sliding rails, in particular to a friction damping locking mechanism and a sliding rail.

Background technique

With the advancement of technology and the improvement of people's quality of life, people have higher and higher requirements for ride comfort. In order to meet the riding experience of different groups of people, moving parts such as armrests, drawers, and storage boxes of the vehicle center console need to have a certain sliding function to meet the comfort of different groups of people using moving parts. Increase human comfort. However, the existing friction damping locking mechanism has the problems of complex structure, many parts and complicated assembly.

Utility model content

In order to solve the problems mentioned in the above background technology, the utility model provides a friction damping locking mechanism and a sliding rail, which have simple structure, few parts and simple assembly.

A friction damping locking mechanism, comprising:

an upper casing, the bottom of the upper casing is provided with a first groove, and a first guide column is fixedly connected in the first groove;

a lower casing, the top of the lower casing is provided with a second groove, and a second guide post is fixedly connected in the second groove;

a compression spring, the compression spring is sleeved on the outside of the first guide column and the second guide column at the same time;

a stop boss, the stop boss is fixedly connected to the bottom of the lower shell;

Wherein, the upper casing is clamped with the lower casing, and the lower casing can move up and down relative to the upper casing.

Further, two sides of the bottom of the upper casing are respectively provided with a downwardly extending elastic side wall, the elastic side wall is provided with a first clamping groove, and the position of the upper casing side wall is corresponding to the first clamping groove. There is a second card slot at the place, and the second card slot communicates with the first card slot to form a card slot;

A buckle is provided on both sides of the top of the lower casing, and the buckle and the clamping groove are slidably matched up and down relative to each other, and the upper casing and the lower casing are clamped through the buckle and the clamping groove.

Further, the top of the buckle is provided with an inclined surface.

Further, the first clamping slot is a U-shaped slot, and the bottom of the clamping buckle is an arc-shaped structure.

Further, the top of the compression spring is fixedly connected to the inner wall of the first groove, and the bottom of the compression spring is fixedly connected to the inner wall of the second groove.

Further, the stop boss is a hemispherical structure.

Further, two stop bosses are provided, and the two stop bosses are fixedly connected to both sides of the bottom of the lower casing.

The utility model also discloses a sliding rail, which is characterized by comprising:

The inner slide rail, the bottom of the inner slide rail is provided with a slot, the friction damping locking mechanism according to any one of claims 1-7 is fixedly connected to the interior of the inner slide rail, and the outer walls on both sides of the inner slide rail are provided with There is a first arc chute;

The outer slide rail, the top of the outer slide rail is provided with a slot, the inner walls on both sides of the outer slide rail are provided with a second arc-shaped chute, and the bottom inner wall of the outer slide rail is provided with two stop grooves ;

A sliding mechanism, the sliding mechanism includes a rectangular frame arranged between the inner sliding rail and the outer sliding rail, and two opposite side walls of the rectangular frame are fixed with a number of balls running through them, and the balls are respectively connected to the first arc sliding The groove and the second arc-shaped chute are slidingly matched;

When the inner slide rail and the outer slide rail move relative to each other, the stop boss collides with the inner wall of the bottom of the outer slide rail, and when the stop boss slides to the stop slot, the stop boss The bottom is embedded in the stop groove.

Further, the longitudinal section of the stop groove is a trumpet-shaped structure that is wide at the top and narrow at the bottom.

The beneficial effects of the present utility model:

1. The friction damping locking mechanism of the present invention has a simple structure, few parts and simple assembly.

2. When the inner sliding rail of the utility model slides relative to the outer sliding rail, the compression spring causes the stop boss to generate pressure on the bottom inner wall of the outer sliding rail, so that friction damping is generated when the inner sliding rail slides relative to the outer sliding rail. force, which helps to increase the fatigue performance of the friction damping locking mechanism.

Description of drawings

FIG. 1 is a schematic structural diagram of a friction damping locking mechanism.

Fig. 2 is the internal structure schematic diagram of Fig. 1;

FIG. 3 is a schematic diagram of the structure of the slide rail.

FIG. 4 is a top view of the slide rail in a closed state.

FIG. 5 is a cross-sectional view taken along the line A-A in FIG. 4 .

FIG. 6 is an enlarged view of C in FIG. 5 .

FIG. 7 is a top view of the open state of the slide rail.

FIG. 8 is a cross-sectional view taken along the line E-E of FIG. 7 .

FIG. 9 is an enlarged view of D in FIG. 8 .

FIG. 10 is a sectional view taken along the line B-B in FIG. 7 .

Among them, 1 is the upper casing, 2 is the first groove, 3 is the first guide column, 4 is the lower casing, 5 is the second groove, 6 is the second guide column, 7 is the compression spring, 8 is the stop position Boss, 9 is the elastic side wall, 10 is the first slot, 11 is the buckle, 1101 is the slope, 12 is the inner slide, 1201 is the first arc slide, 13 is the outer slide, 1301 is the second Arc-shaped chute, 1302 stop slot, 14 is a rectangular frame, 15 is a ball, 16 is an installation slot, and 17 is a second card slot.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

A friction damping locking mechanism as shown in accompanying drawings 1-2 includes:

The upper casing 1, the bottom of the upper casing 1 is provided with a first groove 2, and the first groove 2 is fixedly connected with a first guide column 3; the upper casing 1 and the first guide column 3 are integrally injection molded;

The lower casing 4 is provided with a second groove 5 on the top of the lower casing 4, and a second guide column 6 is fixedly connected in the second groove 5; the lower casing 4 and the second guide column 6 are integrally injection-molded.

Compression spring 7, the compression spring 7 is sleeved on the outside of the first guide column 3 and the second guide column 6 at the same time; the top of the compression spring 7 is fixedly connected with the inner wall of the first groove 2, and the bottom of the compression spring 7 is connected with the second groove. 5 The inner wall is fixedly connected.

The stop boss 8 is fixedly connected to the bottom of the lower casing 4; the stop boss 8 is a hemispherical structure. There are two stop bosses 8 , and the two stop bosses 8 are fixedly connected to both sides of the bottom of the lower casing 4 .

The upper casing 1 is clamped with the lower casing 4 , and the lower casing 4 can move up and down relative to the upper casing 1 .

A downwardly extending elastic side wall 9 is provided on both sides of the bottom of the upper casing 1 , and a first card slot 10 is formed on the elastic side wall 9 . A second card slot 17 is provided, and the second card slot 17 communicates with the first card slot 10 to form a card slot;

A buckle 11 is provided on both sides of the top of the lower casing 4. The buckle 11 and the slot are slidably matched up and down relative to each other. The upper casing 1 and the lower casing 4 are connected by the buckle 11 and the slot. The elastic side wall 9 is made of elastic material, and ABS or other elastic materials can be selected. The top of the buckle 11 is provided with a slope 1101, the bottom of the buckle 11 is an arc structure, and the first slot 10 is a U-shaped groove. Due to the inclined surface 1101, when the upper casing 1 and the lower casing 4 are assembled, the elastic side wall 9 can slide down along the inclined surface 1101, and the assembly is easy.

A slide rail as shown in Figure 3-10, including:

The inner slide rail 12, the bottom of the inner slide rail 12 is provided with a slot, the friction damping locking mechanism is fixedly connected to the interior of the inner slide rail 12, and the outer walls of both sides of the inner slide rail 12 are provided with first arc-shaped slide grooves 1201;

Wherein, an installation groove 16 is provided on the top side wall of the inner slide rail 12 , and the upper casing 1 penetrates through the installation groove 16 and is fixedly connected with the installation groove 16 .

The outer slide rail 13, the top of the outer slide rail 13 is provided with a slot, the inner walls of both sides of the outer slide rail 13 are provided with second arc-shaped slide grooves 1301, and the bottom inner wall of the outer slide rail 13 is provided with two stop grooves 1302 ;

Sliding mechanism, the sliding mechanism includes a rectangular frame 14 arranged between the inner sliding rail 12 and the outer sliding rail 13. The two opposite side walls of the rectangular frame 14 are fixedly penetrated with a number of balls 15, and the balls 15 are respectively connected to the first arc sliding. The groove 1201 and the second arc-shaped chute 1301 are slidably matched;

When the inner slide rail 12 and the outer slide rail 13 move relative to each other, the stop boss 8 collides with the inner wall of the bottom of the outer slide rail 13 , when the stop boss 8 slides to the stop slot 1302 , the bottom of the stop boss 8 Embedded into the stop groove 1302 .

The locking and limiting effect is achieved through the cooperation of the upper housing 1 and the inner slide rail 12 , the cooperation of the two stop bosses 8 of the lower housing 4 and the two stop slots 1302 of the outer slide rail 13 .

The longitudinal section of the stop groove 1302 is a trumpet-shaped structure with a wide upper part and a narrow lower part.

When the utility model is specifically implemented: as shown in Figure 4, Figure 5, Figure 6, when the slide rail is in the closed state, the stop boss 8 located on the left side of the bottom of the lower casing 4 is embedded in the inner wall of the bottom of the outer slide rail 13. In the stop slot 1302 on the left, during the opening process, the stop boss 8 embedded in the stop slot 1302 slides out along the stop slot 1302. Under the action of the compression spring 7, the stop boss 8 slides with the outside. The bottom inner wall of the rail 13 collides, and the friction damping force is generated when the stop boss 8 and the bottom inner wall of the outer slide rail 13 slide relative to each other, which helps to increase the fatigue performance of the friction damping locking mechanism. As shown in FIGS. 7 , 8 and 9 , when the stop boss 8 located on the right side of the bottom of the lower casing 4 slides to the stop groove 1302 located on the right side of the inner wall of the bottom of the outer slide rail 13 , the lower casing 4 The stop boss 8 on the right side of the bottom is embedded in the stop slot 1302, and a locking force is generated between the stop boss 8 and the stop slot 1302, and the locking force can improve the stop feel of the slide rail.

Among them, the friction damping force f is equal to the pressure N generated by the compression spring 3 multiplied by u, and u is the friction coefficient between the stop boss 8 and the inner wall of the outer slide rail 13 . The locking force F is equal to N*(u+tan(a)), where a is equal to the angle between the inclined plane of the stop groove 1302 and the horizontal plane.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The technical solution and the utility model concept of the invention are equivalently replaced or changed, and should be covered within the protection scope of the present invention.

Claims (9)

1. A friction damped locking mechanism, comprising:

the bottom of the upper shell is provided with a first groove, and a first guide column is fixedly connected in the first groove;

the top of the lower shell is provided with a second groove, and a second guide column is fixedly connected in the second groove;

the compression spring is sleeved outside the first guide post and the second guide post at the same time;

the stop boss is fixedly connected to the bottom of the lower shell;

the upper shell and the lower shell are clamped and connected, and the lower shell can move up and down relative to the upper shell.

2. The friction damping locking mechanism of claim 1, wherein two sides of the bottom of the upper housing are respectively provided with a downwardly extending elastic side wall, the elastic side wall is provided with a first clamping groove, a second clamping groove is arranged at a position of the side wall of the upper housing corresponding to the first clamping groove, and the second clamping groove is communicated with the first clamping groove to form a clamping groove;

the upper shell and the lower shell are connected in a clamping mode through the buckles and the clamping grooves in a clamping mode.

3. The friction damped locking mechanism of claim 2 wherein said snap top is beveled.

4. The friction damping locking mechanism of claim 2, wherein the first slot is a U-shaped slot and the bottom of the clip is an arc-shaped structure.

5. The friction damped locking mechanism of claim 1 wherein a top portion of said compression spring is fixedly attached to an inner wall of said first recess and a bottom portion of said compression spring is fixedly attached to an inner wall of said second recess.

6. The friction damped locking mechanism of claim 1 wherein said stop boss is hemispherical in configuration.

7. The friction damping locking mechanism of claim 6, wherein there are two stop bosses, and the two stop bosses are fixedly connected to two sides of the bottom of the lower housing.

8. A slide rail, comprising:

the friction damping locking mechanism of any one of claims 1 to 7 is fixedly connected inside the inner slide rail, and the outer walls of both sides of the inner slide rail are provided with first arc-shaped sliding grooves;

the top of the outer sliding rail is provided with a groove, the inner walls of two sides of the outer sliding rail are provided with second arc-shaped sliding grooves, and the inner wall of the bottom of the outer sliding rail is provided with two stop grooves;

the sliding mechanism comprises a rectangular frame arranged between an inner sliding rail and an outer sliding rail, a plurality of balls are fixedly penetrated through two opposite side walls of the rectangular frame, and the balls are respectively in sliding fit with the first arc-shaped sliding groove and the second arc-shaped sliding groove;

when the inner slide rail and the outer slide rail generate relative motion, the stop boss is abutted against the inner wall of the bottom of the outer slide rail, and when the stop boss slides to the stop groove, the bottom of the stop boss is embedded into the stop groove.

9. The slide rail of claim 8 wherein the longitudinal section of the stop groove is a trumpet-shaped structure with a wide top and a narrow bottom.

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