Silent slide rail
By incorporating a steel ball retainer and a rubber buffer pad in the cage, the problems of high noise and increased weight in existing technologies are solved, achieving the effects of noise reduction, weight reduction, and low cost for silent slide rails.
Patent Information
- Application Number
- CN202422976955.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing vehicle-mounted sliding rails have issues with noise and equipment. Among existing technologies, the existing technology has the problem of relatively thicker noise reduction materials, which leads to greater noise and increased weight during use.
By incorporating a steel ball retainer and a rubber buffer pad in the cage, the contact area between the steel ball and the steel ball through hole is reduced, and a rubber buffer pad is placed at the outer rail to reduce collision noise. At the same time, the cage structure is optimized to reduce weight and production costs.
This achieves reduced noise, lighter slide rails, and lower production costs, while improving installation efficiency and stability.
Smart Images
Figure CN223715302U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of slide rail for vehicle refrigerator, specifically relates to a mute type slide rail. BACKGROUND
[0002] The prior patent CN 215190366 U of all the applicant includes two outer rail strips and two inner rail strips, a rail groove of the two outer rail strips is respectively provided with an inner rail strip, and a row of steel balls is respectively arranged between the two side inner wall surfaces of the outer rail strip and the two side outer wall surfaces of the corresponding inner rail strip, wherein the outer side surface of one of the outer rail strips is fixedly connected with the outer side surface of the other inner rail strip. The length and width dimensions of the two outer rail strips are the same. It also includes two retaining frames, one retaining frame is arranged between the corresponding outer rail strip and inner rail strip, and the included angle between the two side wall plates and the main plate in the retaining frame is a right angle. Each side wall plate is separated into a plurality of wall plate blocks by a plurality of notches, a steel ball through hole is formed in the front surface of the wall plate block and penetrates through the front and back surfaces of the wall plate block. The wall plate block is in T shape, and a recess is formed in the main plate opposite to the notch and communicates with the notch. The outer side surface of one of the outer rail strips is provided with a positioning protrusion, the outer side surface of one of the inner rail strips is provided with a positioning groove, and the outer rail strip and the inner rail strip are fixedly connected by spot welding after the positioning protrusion and the positioning groove are matched. The disadvantages are: first, the wall plate block in the retaining frame is relatively thicker, because the steel ball through hole needs to reach a certain design depth, so that the retaining frame can better use the steel ball, and because the contact area between the steel ball and the steel ball through hole is relatively large, the use noise of the new type of slide rail is relatively large during use; second, the wall plate block in the retaining frame is relatively thicker, so that the weight of the retaining frame is increased, and the overall weight of the new type of slide rail is increased. CONTENT OF THE UTILITY MODEL
[0003] Design purpose: to avoid the deficiencies in the background art, design a mute type slide rail which can not only reduce the use noise, but also has lower production cost, lighter quality and convenient installation.
[0004] Design scheme: to achieve the above design purpose.
[0005] 1. The inner side of the wall plate in the retainer is provided with a plurality of steel ball retaining sleeves, the through holes in the steel ball retaining sleeves are communicated with the corresponding steel ball through holes, the upper part of the steel ball retaining sleeve is provided with a first notch, and the lower part of the steel ball retaining sleeve is provided with a second notch; the outer side end of the rail groove in the outer rail is provided with a baffle, and the baffle is sleeved with a rubber buffer pad, which is one of the technical features of the utility model. The purpose of this design is that: the inner side of the wall plate in the retainer is provided with a plurality of steel ball retaining sleeves, the through holes in the steel ball retaining sleeves are communicated with the corresponding steel ball through holes, the upper part of the steel ball retaining sleeve is provided with a first notch, and the lower part of the steel ball retaining sleeve is provided with a second notch; the outer side end of the rail groove in the outer rail is provided with a baffle, and the baffle is sleeved with a rubber buffer pad; firstly, the setting of the steel ball retaining sleeve, the first notch and the second notch can not only ensure that the depth of the steel ball through hole meets the design requirement, but also reduce the contact area of the steel ball, the steel ball through hole and the steel ball retaining sleeve, so that the use noise of the mute type sliding rail is relatively smaller during use; secondly, the setting of the steel ball retaining sleeve can not only ensure that the depth of the steel ball through hole meets the design requirement, but also reduce the thickness of the wall plate in the retainer, so that the weight of the retainer is reduced, and the overall weight of the mute type sliding rail is reduced, and the production cost of the retainer is reduced due to the relatively less material used, and the production cost of the mute type sliding rail is reduced; thirdly, the setting of the rubber buffer pad can reduce the collision sound between the outer rail and the corresponding inner rail when the outer rail is folded, so as to further reduce the use noise of the mute type sliding rail during use.
[0006] 2. The rubber buffer pad is a rectangular rubber block, the upper end face of the rectangular rubber block is provided with a rectangular through hole, the rectangular through hole penetrates the upper and lower end faces of the rectangular rubber block, and the rectangular rubber block is installed on the outer rail in a plug-in fit mode through the rectangular through hole and the baffle, which is the second technical feature of the utility model. The purpose of this design is that: the rubber buffer pad is a rectangular rubber block, the upper end face of the rectangular rubber block is provided with a rectangular through hole, the rectangular through hole penetrates the upper and lower end faces of the rectangular rubber block, and the rectangular rubber block is installed on the outer rail in a plug-in fit mode through the rectangular through hole and the baffle, so that the rubber buffer pad is convenient to install and replace.
[0007] 3. The front and back of the rectangular rubber block are respectively provided with a plurality of V-shaped grooves, and the V-shaped grooves pass through the upper and lower end faces of the rectangular rubber block, and the upper end face of the rectangular rubber block is provided with two recesses, and the two recesses are located on both sides of the rectangular through hole, and the two recesses are communicated with the rectangular through hole, which is the third technical feature of the utility model. The purpose of this design is that the front and back of the rectangular rubber block are respectively provided with a plurality of V-shaped grooves, and the V-shaped grooves pass through the upper and lower end faces of the rectangular rubber block, and the upper end face of the rectangular rubber block is provided with two recesses, and the two recesses are located on both sides of the rectangular through hole, and the two recesses are communicated with the rectangular through hole. The setting of a plurality of V-shaped grooves and recesses can improve the buffering effect of the rubber buffer pad. In addition, the front and back of the rectangular rubber block are respectively provided with a plurality of V-shaped grooves, and the upper end face of the rectangular rubber block is provided with two recesses, and the two recesses are located on both sides of the rectangular through hole, which is convenient for users to install (no matter which side is installed inward).
[0008] 4. The plate body of the outer rail strip is provided with a plurality of nut mounting holes, and the nut mounting holes pass through the front and back of the plate body, and the nut mounting holes are provided with lock nuts; and the outer side face of the plate body of the outer rail strip is provided with two positioning columns, which is the fourth technical feature of the utility model. The purpose of this design is that the plate body of the outer rail strip is provided with a plurality of nut mounting holes, and the nut mounting holes pass through the front and back of the plate body, and the nut mounting holes are provided with lock nuts; and the outer side face of the plate body of the outer rail strip is provided with two positioning columns. The cooperation of the positioning column and the lock nut not only improves the installation efficiency of the silent sliding rail (convenient installation), but also improves the installation firmness of the silent sliding rail.
[0009] 5. The middle plate in the retainer is provided with a recess in the middle, and the recess is formed by concave in the middle plate, the depth of the recess is greater than the height of the lock nut exposed part exposed in the rail groove, and the width of the recess is greater than the diameter of the lock nut exposed part exposed in the rail groove, which is the fourth technical feature of the utility model. The purpose of this design is that the middle plate in the retainer is provided with a recess in the middle, and the recess is formed by concave in the middle plate, the depth of the recess is greater than the height of the lock nut exposed part exposed in the rail groove, and the width of the recess is greater than the diameter of the lock nut exposed part exposed in the rail groove; the setting of the recess not only plays a role in avoiding the setting of the lock nut, but also improves the strength of the retainer.
[0010] Technical solution: a mute type slide rail, including two slide rails, the slide rail is composed of outer rail, inner rail, retainer and two rows of steel balls, the inner rail is arranged in the rail groove of the outer rail, and the retainer is arranged between the outer rail and the inner rail, two side wall plates in the retainer are respectively provided with a row of steel ball through holes, and the steel ball through holes penetrate the front and back surfaces of the wall plate, a steel ball is arranged in each steel ball through hole, and the steel ball is located between the inner wall surface of the corresponding outer rail and the outer wall surface of the inner rail, the two slide rails are fixedly connected in one body by back-to-back welding of the two inner rails, the inner side surface of the wall plate in the retainer is provided with a plurality of steel ball retaining sleeves, and the through hole in the steel ball retaining sleeve is communicated with the corresponding steel ball through hole, the upper part of the steel ball retaining sleeve is provided with a first notch, and the lower part of the steel ball retaining sleeve is provided with a second notch, the outer side port of the rail groove in the outer rail is provided with a baffle, and the baffle is provided with a rubber buffer pad.
[0011] Compared with the background art, the mute type slide rail can not only reduce the use noise, but also has lower production cost. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a perspective structural schematic view of a mute type slide rail.
[0013] Figure 2 It is Figure 1 It is a partial enlarged view of the circle A.
[0014] Figure 3 It is a front view structural schematic view of a mute type slide rail.
[0015] Figure 4 It is a side view structural schematic view of a mute type slide rail.
[0016] Figure 5 It is a top view structural schematic view of a retainer.
[0017] Figure 6 It is a side view structural schematic view of a retainer. DETAILED DESCRIPTION
[0018] Example 1: refer to the attached Figures 1-6The application discloses a mute slide rail which comprises two slide rails 1, the slide rail 1 is composed of an outer rail 11, an inner rail 12, a retainer 13 and two rows of steel balls 14, the inner rail 12 is arranged in the rail groove of the outer rail 11, the retainer 13 is arranged between the outer rail 11 and the inner rail 12, two side wall plates 131 of the retainer 13 are respectively provided with a row of steel ball through holes 133 which penetrate the front and back surfaces of the wall plate 131, one steel ball 14 is arranged in each steel ball through hole 133 and the steel ball 14 is located between the inner wall surface of the corresponding outer rail 11 and the outer wall surface of the inner rail 12, the two slide rails 1 are fixedly connected in an integrated manner through back-to-back welding of the two inner rails 12, and the mute slide rail is characterized in that: the inner side surface of the wall plate 131 of the retainer 13 is provided with a plurality of steel ball retaining sleeves 134, the through holes in the steel ball retaining sleeve 134 are communicated with the corresponding steel ball through hole 133, the upper portion of the steel ball retaining sleeve 134 is provided with a first gap 135, and the lower portion of the steel ball retaining sleeve 134 is provided with a second gap 136; the outer side end of the rail groove of the outer rail 11 is provided with a baffle 111, and the baffle 111 is sleeved with a rubber buffer pad 2.
[0019] The rubber buffer pad 2 is a rectangular rubber block, the upper end surface of the rectangular rubber block is provided with a rectangular through hole 21 which penetrates the upper and lower end surfaces of the rectangular rubber block, and the rectangular rubber block is installed on the outer rail 11 in a plug-in cooperation mode through the rectangular through hole 21 and the baffle 111. The front surface and the back surface of the rectangular rubber block are respectively provided with a plurality of V-shaped grooves 22 which penetrate the upper and lower end surfaces of the rectangular rubber block, the upper end surface of the rectangular rubber block is provided with two recesses 23 which are located at the two sides of the rectangular through hole 21, and the two recesses 23 are communicated with the rectangular through hole 21.
[0020] The plate body of the outer rail 11 is provided with a plurality of nut mounting holes which penetrate the front and back surfaces of the plate body, the nut mounting holes are provided with lock nuts 3, and the lock nuts 3 are M4 nuts; the outer side surface of the plate body of the outer rail 11 is provided with two positioning columns 4. The middle plate 132 of the retainer 13 is provided with an avoiding recess 137 which is formed by concave in the middle plate 132, the depth of the avoiding recess 137 is greater than the height of the lock nut exposed part exposed in the rail groove, and the width of the avoiding recess 137 is greater than the diameter of the lock nut exposed part exposed in the rail groove. The length of the overlapping part of the two inner rails 12 welded back to back is less than the length of the inner rail 12.
[0021] The included angle between the wall plate 131 and the middle plate 132 in the retainer 13 is 94°-96°; the retainer 13 is made of 0.6 mm steel plate, the outer rail 11 is made of 1.8 mm steel plate, and the inner rail 12 is made of 1.4 mm steel plate. The length of the mute type slide rail can reach 503 mm when the mute type slide rail is stretched to three levels (i.e. when two outer rails 11 are stretched to the corresponding sides), and the mute type slide rail is mainly used for the car refrigerator of the pure electric vehicle.
[0022] It should be understood that, although the above embodiment has been described in detail, the design idea of the utility model is described in simple words, and is not limited to the design idea of the utility model. Any combination, addition or modification within the design idea of the utility model falls within the protection scope of the utility model.
Claims
1. A silent slide rail, comprising two slide rails (1), wherein the slide rail (1) is composed of an outer rail (11), an inner rail (12), a retainer (13) and two rows of steel balls (14), wherein the inner rail (12) is provided in the groove of the outer rail (11) and a retainer (13) is provided between the outer rail (11) and the inner rail (12), wherein a row of steel ball through holes (133) is respectively opened on the two side wall plates (131) of the retainer (13), and the steel ball through holes (133) penetrate the front and back sides of the wall plate (131), wherein a steel ball (14) is provided in each steel ball through hole (133) and the steel ball (14) is located between the inner wall surface of the corresponding outer rail (11) and the outer wall surface of the inner rail (12), wherein the two slide rails (1) are fixedly connected as one piece by welding back to back of the two inner rails (12), characterized in that: The inner side of the wall plate (131) in the retainer (13) is provided with a plurality of steel ball retaining sleeves (134), the through holes in the steel ball retaining sleeves (134) are communicated with the corresponding steel ball through holes (133), the upper part of the steel ball retaining sleeve (134) is provided with a first notch (135), and the lower part of the steel ball retaining sleeve (134) is provided with a second notch (136); the outer side end of the rail groove in the outer rail bar (11) is provided with a baffle (111), and the baffle (111) is sleeved with a rubber buffer pad (2).
2. The silent sliding rail according to claim 1, wherein: The rubber buffer pad (2) is a rectangular rubber block, the upper end surface of the rectangular rubber block is provided with a rectangular through hole (21) penetrating the upper and lower end surfaces of the rectangular rubber block, and the rectangular rubber block is installed on the outer rail bar (11) through the insertion and cooperation of the rectangular through hole (21) and the baffle (111).
3. The silent sliding rail according to claim 2, wherein: The front and back surfaces of the rectangular rubber block are respectively provided with a plurality of V-shaped grooves (22) penetrating the upper and lower end surfaces of the rectangular rubber block, the upper end surface of the rectangular rubber block is provided with two recesses (23) located on the two sides of the rectangular through hole (21), and the two recesses (23) are communicated with the rectangular through hole (21).
4. The silent sliding rail according to claim 1, wherein: The plate body of the outer rail bar (11) is provided with a plurality of nut mounting holes penetrating the front and back surfaces of the plate body, and the nut mounting holes are provided with anti-loose nuts (3); the outer side surface of the plate body of the outer rail bar (11) is provided with two positioning columns (4).
5. The silent sliding rail according to claim 4, wherein: The middle plate (132) in the retainer (13) is provided with an avoidance recess (137) in the middle, and the avoidance recess (137) is formed by concave in the middle plate (132), the depth of the avoidance recess (137) is greater than the height of the exposed part of the anti-loose nut exposed in the rail groove, and the width of the avoidance recess (137) is greater than the diameter of the exposed part of the anti-loose nut exposed in the rail groove.
6. The silent sliding rail according to claim 1, wherein: The length of the overlapping part of the two inner rail bars (12) welded back to back is less than the length of the inner rail bar (12).