Improved two-section sliding rail
By setting up reinforcement and positioning mechanisms in the overlapping area of the two slide rails, the problem of insufficient mechanical strength caused by the small overlapping area between the inner and outer rails is solved, thereby improving the stability and load-bearing capacity of the slide rails.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-10
AI Technical Summary
The existing shorter two-section slide rails have a small overlap area between the inner and outer rails when the inner rail is pulled out from the outer rail. When the inner rail is under heavy load, the mechanical strength is insufficient, which can easily cause bending, deformation or slide rail detachment.
A reinforcement mechanism is set in the overlapping area after the inner rail is fully pulled out, including a first hoop, a second hoop, and a reinforcing plate. A positioning mechanism is provided on the inner side of the outer rail to enhance mechanical strength, and the ball assembly is limited by the protrusions and bending structure. A second bend is provided at the inner end of the inner rail for further limitation.
It improves the mechanical strength of the slide rail in the open state, prevents bending, deformation or slide rail detachment, enhances load-bearing capacity, and achieves effective limiting and buffering effects through simple structure and low-cost design.
Smart Images
Figure CN224107562U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to slide rail accessory technical field especially relates to an improved two section slide rail. BACKGROUND
[0002] Two section slide rail is the simplest slide rail type, the existing two section slide rail is composed of inner rail, outer rail and the ball assembly between inner rail and outer rail, although it has the advantages of simple structure, low cost, but for shorter two section slide rail has the following defects:
[0003] Because inner rail, outer rail and ball assembly are shorter, when inner rail is completely extracted from outer rail, the coincidence area of inner rail and outer rail is smaller, when inner rail is heavily loaded (such as: the objects in the drawer connected with inner rail are heavier), the mechanical strength of the coincidence area of inner rail and outer rail is not enough, and the problems of bending, deformation or slide rail extraction are prone to occur.
[0004] In order to overcome the above problems, we have invented an improved two section slide rail. CONTENT OF THE UTILITY MODEL
[0005] The utility model discloses an improved two section slide rail, which solves the problems of the existing shorter two section slide rail, such as small coincidence area of inner rail and outer rail when the inner rail is extracted from the outer rail, insufficient mechanical strength when the inner rail is heavily loaded, and bending, deformation or slide rail extraction.
[0006] An improved two section slide rail, which comprises an outer rail, an inner rail arranged in the outer rail, and a ball assembly arranged between the outer rail and the inner rail, wherein the length of the coincidence area formed by the inner rail and the outer rail after the inner rail is fully extracted matches the length of the ball assembly, a reinforcing mechanism is arranged in the coincidence area, a first positioning mechanism is arranged on the inner side of the outer end of the outer rail coinciding with the outer end of the coincidence area, a second positioning mechanism is arranged on the inner side of the inner end of the outer rail, a third positioning mechanism is arranged on the inner side of the outer rail between the first positioning mechanism and the second positioning mechanism, and the inner rail can be fully inserted into the inner part of the outer rail.
[0007] Further, the length of the ball assembly is at least half of the length of the outer rail.
[0008] Further, the reinforcing mechanism comprises a first hoop sleeve arranged on the outer end of the outer rail, a second hoop sleeve arranged on the outer side of the outer rail and spaced from the first hoop sleeve, and a reinforcing plate arranged on the inner side of the inner rail, wherein one end of the reinforcing plate is located in the coincidence area and the other end is located in the middle section of the inner rail.
[0009] Further, the first sleeve is C-shaped in cross section, and the opening of the C shape is arranged on the inner side of the outer rail; the second sleeve is C-shaped in cross section, and the opening of the C shape is arranged on the outer side of the outer rail, and the second sleeve is provided with an L-shaped notch on the inner side of the outer rail, and the length of the L-shaped notch is greater than half the length of the second sleeve.
[0010] Further, the reinforcing plate is an iron plate, and the thickness of the iron plate is at least 2.0 mm, and the iron plate is welded to the inner rail.
[0011] Further, the first sleeve and the second sleeve are iron sleeves, and the thickness of the first sleeve and the second sleeve is at least 2.0 mm, and the first sleeve and the second sleeve are welded to the outer rail, respectively.
[0012] Further, the first positioning mechanism is a protrusion arranged on the inner side wall of the outer rail, and the protrusion is used for abutting against the ball at the outer end of the ball assembly to limit the extraction of the sliding rail; the third positioning mechanism is a protrusion arranged on the inner side wall of the outer rail, and the protrusion is used for abutting against the ball at the inner end of the ball assembly to limit the insertion of the sliding rail; and the second positioning mechanism is a first bending arranged at the inner end of the outer rail.
[0013] Optionally, a rubber ring is sleeved on the first bending, and the rubber ring is used for buffering and locking the inner end of the inner rail.
[0014] Further, the inner rail is provided with a second bending near the inner end, and the second bending is used for resisting the inner end of the ball assembly and limiting the extraction of the inner rail.
[0015] Further, the outer rail is provided with at least two outwardly extending rivet screws, the inner rail is provided with at least two outwardly extending rivet screws, and the inner side of the outer rail is opposite to the inner side of the inner rail.
[0016] In summary, the technical scheme of the utility model has the following beneficial effects:
[0017] The utility model solves the existing shorter type two section slide rails, the coincidence area of inner rail and outer rail is smaller when the inner rail is drawn out from the outer rail, the mechanical strength is not enough when the inner rail is heavy, and the problem of bending, deformation or slide rail drawing out is easy to produce. The first hoop, the second hoop and the reinforcing plate are equipped on the coincidence area after the inner rail is drawn out, the mechanical strength of the inner rail and the outer rail under the slide rail opening state is strengthened, and the load capacity is improved. The first hoop, the second hoop and the reinforcing plate are simple in structure, easy to assemble, low in cost, strong in practicality, effectively prevent the problem of slide rail bending, deformation or slide rail drawing out from happening. The first positioning mechanism and the third positioning mechanism of the scheme adopt simple convex point structure, and the both end positions of the ball assembly are limited, the second positioning mechanism adopts two optional ways: one is the simple first bending position limiting mode of the insertion of the inner rail, and the other is the mode with the buffering and locking functions, only need to set the rubber ring on the first bending, can buffer the insertion of the inner rail and lock the inner end of the inner rail, the rubber ring has the multiple advantages of reducing mechanical noise, protecting the end of the inner rail from wearing, and locking the inner rail from sliding out after insertion. The second bending near the inner end of the inner rail has the dual functions of resisting the inner end of the ball assembly from drawing out and limiting the drawing out of the inner rail. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used in the description of the utility model embodiment. Obviously, the drawings in the following description are only a part of the embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.
[0019] Figure 1 It is the structure diagram of the improved two section slide rail opening state of the utility model;
[0020] Figure 2 It is the side view of the improved two section slide rail closing state of the utility model;
[0021] Figure 3 It is the structure diagram of the utility model embodiment 1, and the first hoop is removed in the drawing;
[0022] Figure 4 It is Figure 3 It is the section along A-A line;
[0023] Figure 5 It is the structure diagram of the first hoop of the utility model;
[0024] Figure 6 It is the structure diagram of the second hoop of the utility model;
[0025] Figure 7The utility model discloses an inner rail and the structure diagram of reinforcing plate.
[0026] Figure 8 The utility model discloses a structure diagram of embodiment 2.
[0027] Mark explanation:
[0028] 10-outer rail, 11-first bending wall, 111-nodules, 12-first hoop, 121-opening, 122-screw hole, 13-second hoop, 131-L type gap, 14-first bending, 141-rubber ring, 20-inner rail, 21-second bending wall, 22-reinforcing plate, 23-second bending, 24-port, 30-rolling ball assembly, 31-pearl frame, 32-rolling ball, 40-overlapping area, 50-press rivet screw. Specific implementation
[0029] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0030] Embodiment 1:
[0031] As Figures 1 to 7 Shown, an improved two-section slide rail, including outer rail 10, set in the inner rail 20 in outer rail 10, and set in the rolling ball assembly 30 between outer rail 10 and inner rail 20, when the inner rail 20 is fully extracted and the length of the overlapping area 40 (that is the minimum overlapping area) formed with outer rail 10 matches the length of rolling ball assembly 30, the overlapping area 40 is provided with reinforcing mechanism, and the outer end inside of the outer end of outer rail 10 coinciding with the overlapping area 40 is provided with first positioning mechanism, the inner end inside of outer rail 10 is provided with second positioning mechanism, and the inner side of outer rail 10 between first positioning mechanism and second positioning mechanism is provided with third positioning mechanism, and the inner rail 20 can be fully inserted into the inside of outer rail 10. The inner rail 20 is fully extracted to be the open state of slide rail, and the inner rail 20 is fully inserted to be the folding state of slide rail. Outer rail 10 is provided with a first bending wall 11 (in the shape of outer arch) along two long edges to the inside, and inner rail 20 is provided with a second bending wall 21 (in the shape of inner concave arc) along two long edges to the inside, and rolling ball assembly 30 includes pearl frame 31 and multiple rolling balls 32 in the pearl hole (not shown in the drawing) on both sides of pearl frame 31. The cross section of pearl frame 31 is in the shape of M, and the pearl frame 31 of the embodiment is preferably two rows of 6 distributions. Rolling balls 32 roll along the inner side of first bending wall 11 and the outer side of second bending wall 21. The inner side of outer rail 10 is relative to the inner side of inner rail 20.
[0032] Optionally, the length of the outer rail 10 is 162.5mm, the length of the inner rail 20 is 159mm, and the thickness of the outer rail 10 and the inner rail 20 is 1.5mm.
[0033] In particular, the length of the ball assembly 30 is at least half the length of the outer rail 10.
[0034] In particular, the reinforcing mechanism comprises a first hoop 12 sleeved on the outer end of the outer rail 10, and a second hoop 13 spaced from the first hoop 12 and sleeved on the outer rail 10, the second hoop 13 being located at the inner end of the overlapping area 40. The reinforcing mechanism further comprises a reinforcing plate 22 arranged on the inner side of the inner rail 20, one end of the reinforcing plate 22 being located in the overlapping area 40 and the other end being located at the middle section of the inner rail 20. Optionally, the length of the reinforcing plate 22 is 80mm. Preferably, the reinforcing plate 22 is an iron plate, and the thickness of the iron plate is at least 2.0mm, the iron plate being welded to the inner rail 20.
[0035] In particular, the first hoop 12 has a C-shaped cross section, and the opening 121 of the C-shaped cross section is arranged on the inner side of the outer rail 10 (as shown in Figure 8 The second hoop 13 has a C-shaped cross section, and the opening 121 of the C-shaped cross section is arranged on the outer side of the outer rail 10. The second hoop 13 has an L-shaped notch 131 arranged on the inner side of the outer rail 10, and the length of the L-shaped notch 131 is greater than half the length of the second hoop 13. The first hoop 12 has a screw hole 122.
[0036] Preferably, the first hoop 12 and the second hoop 13 are iron hoops, and the thickness of the iron hoops is at least 2.0mm, the first hoop 12 and the second hoop 13 being welded to the outer rail 10 respectively.
[0037] In particular, the first positioning mechanism is a protrusion 111 arranged on the inner side wall of the outer rail 10 (referring to the inner side of the first bent wall 11), the protrusion 111 being formed by stamping the first bent wall 11, and the protrusion 111 is used to limit the sliding rail extraction (i.e. the sliding rail opening state) by abutting against the ball 32 at the outer end of the ball assembly 30. The third positioning mechanism is a protrusion 111 arranged on the inner side wall of the outer rail 10 (referring to the inner side of the first bent wall 11), and the protrusion 111 is used to limit the sliding rail insertion (i.e. the sliding rail closing state) by abutting against the ball 32 at the inner end of the ball assembly 30. The second positioning mechanism is a first bent portion 14 arranged at the inner end of the outer rail 10, the first bent portion 14 being a sheet-shaped body extending outwardly from the inner end of the outer rail 10 before being bent. In the present embodiment, the width of the first bent portion 14 matches the width of the inner end of the inner rail 20, and the first bent portion 14 is used to define the position of the inner end of the inner rail 20 in the closing state, and also plays a role of preventing the inner rail 20 and the ball assembly 30 from being pulled out of the two sections of the sliding rail.
[0038] Specifically, the inner rail 20 is provided with a second bend 23 (the second bend 23 is punched by the inner rail 20) near the inner end of the inner rail 20, the second bend 23 is used to resist the inner end of the ball assembly 30 and limit the extraction of the inner rail 20, that is, limit the opening state of the slide rail.
[0039] Specifically, the outer rail 10 is provided with at least two outwardly extending rivet screws 50, one of which is threaded out of the screw hole 122 on the first collar 12. The inner rail 20 is provided with at least two outwardly extending rivet screws 50.
[0040] The assembly process of the two-section slide rail is briefly described as follows: first, the first collar 12 and the second collar 13 are welded on the outer rail 10, then the two rivet screws 50 on the outer rail 10 are riveted, the reinforcing plate 22 is welded on the inner rail 20, the ball assembly 30 is installed between the two groups of protrusions 111 of the first positioning mechanism and the third positioning mechanism of the outer rail 10, then the inner rail 20 is installed inside the ball assembly 30 and the outer rail 10, then the sheet-shaped body extending outwardly from the inner end of the outer rail 10 is formed into the first bend 14, then the two rivet screws 50 on the inner rail 20 are riveted, and the ball assembly 30 is coated with an appropriate amount of lubricating oil.
[0041] Embodiment 2:
[0042] As shown in Figure 8 , 7 different from embodiment 1, the first bend 14 is provided with a rubber ring 141, the rubber ring 141 is used to buffer and lock the inner end of the inner rail 20. When locked, the rubber ring 141 is clamped into the inner end port 24 of the inner rail 20. The rubber ring 141 is a flat drum shape, the outer length of the rubber ring 141 matches the inner width of the port 24 and is tightly matched with the port 24 to achieve the locking purpose. The rubber ring 141 has multiple advantages of reducing mechanical noise, protecting the end of the inner rail 20 from wear and tear, and locking the inner rail 20 from sliding out (in the opening direction) after insertion (i.e. in the closed state of the slide rail). The rest is the same as embodiment 1 and will not be repeated here.
[0043] It is particularly pointed out that the specific parameters of length and thickness listed in the specific embodiments are not a limitation of the protection scope of the scheme, and can be adjusted accordingly according to the actual needs of the customers.
[0044] In summary, the technical scheme of the utility model has the following beneficial effects:
[0045] The utility model solves the existing shorter type two section slide rail, there is the problem of the coincidence area of inner rail and outer rail is smaller when the inner rail is pulled out from the outer rail, the mechanical strength is not enough when the inner rail is heavy, and the inner rail is easy to bend, deform or slide out. The first hoop, the second hoop and the reinforcing plate are arranged on the coincidence area after the inner rail is pulled out, the mechanical strength of the inner rail and the outer rail in the open state of the slide rail is strengthened, and the load capacity is improved. The structure of the first hoop, the second hoop and the reinforcing plate is simple, easy to assemble, low in cost and high in practicality, effectively prevents the problems of bending, deformation or sliding out of the slide rail. The first positioning mechanism and the third positioning mechanism of the scheme adopt a simple convex point structure, and the two ends of the ball assembly are limited, the second positioning mechanism adopts two optional ways: one is a simple first bending insertion limiting mode, and the other is a mode with buffering and locking functions. A rubber ring is sleeved on the first bending, the insertion of the inner rail is buffered, and the inner end of the inner rail is locked, the rubber ring has the multiple advantages of reducing mechanical noise, protecting the end of the inner rail from abrasion, locking the inner rail after insertion and preventing the inner rail from sliding out. The second bending near the inner end of the inner rail has the dual functions of resisting the inner end of the ball assembly from coming out and limiting the pulling out of the inner rail.
[0046] The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical scheme. Any modification, equivalent replacement and improvement within the spirit and principles of the above-mentioned embodiments should be included in the protection scope of the technical scheme.
Claims
1. An improved two-section slide rail comprising an outer rail, an inner rail disposed within the outer rail, and a ball assembly disposed between the outer rail and the inner rail, characterized in that: The length of the coinciding area formed by the inner rail and the outer rail when the inner rail is fully extracted matches the length of the ball assembly, a reinforcing mechanism is arranged in the coinciding area, a first positioning mechanism is arranged on the inner side of the outer end of the outer rail coinciding with the outer end of the coinciding area, a second positioning mechanism is arranged on the inner side of the inner end of the outer rail, a third positioning mechanism is arranged on the inner side of the outer rail between the first positioning mechanism and the second positioning mechanism, and the inner rail can be fully inserted into the inner part of the outer rail.
2. The improved two-section slide rail according to claim 1, wherein: The length of the ball assembly is at least half of the length of the outer rail.
3. The improved two-section slide rail according to claim 1, wherein: The reinforcing mechanism comprises a first hoop sleeve arranged on the outer end of the outer rail and a second hoop sleeve arranged on the outer rail and spaced from the first hoop sleeve, the second hoop sleeve is located at the inner end of the coinciding area, the reinforcing mechanism further comprises a reinforcing plate arranged on the inner side of the inner rail, one end of the reinforcing plate is located in the coinciding area and the other end is located in the middle segment of the inner rail.
4. The improved two-section slide rail according to claim 3, wherein: The cross section of the first hoop sleeve is C-shaped, and the opening of the C-shaped cross section is arranged on the inner side of the outer rail; the cross section of the second hoop sleeve is C-shaped, and the opening of the C-shaped cross section is arranged on the outer side of the outer rail, the second hoop sleeve is provided with an L-shaped notch close to the inner side of the outer rail, and the length of the L-shaped notch is greater than half of the length of the second hoop sleeve.
5. The improved two-section slide rail according to claim 3, wherein: The reinforcing plate is an iron plate, and the thickness of the iron plate is at least 2.0 mm, and the iron plate is welded with the inner rail.
6. The improved two-section slide rail according to claim 3, wherein: The first hoop sleeve and the second hoop sleeve are iron sleeves, and the thickness of the iron sleeves is at least 2.0 mm, and the first hoop sleeve and the second hoop sleeve are welded with the outer rail respectively.
7. The improved two-section slide rail according to claim 1, wherein: The first positioning mechanism is a protrusion arranged on the inner side wall of the outer rail, which is used for limiting the sliding rail extraction by colliding with the ball at the outer end of the ball assembly; the third positioning mechanism is a protrusion arranged on the inner side wall of the outer rail, which is used for limiting the sliding rail insertion by colliding with the ball at the inner end of the ball assembly; and the second positioning mechanism is a first bending arranged at the inner end of the outer rail.
8. The improved two-section slide rail according to claim 7, wherein: A rubber ring is arranged on the first bending, which is used for buffering and locking the inner end of the inner rail.
9. The improved two-section slide rail according to claim 1, wherein: A second bending is arranged on the inner rail close to the inner end of the inner rail, which is used for resisting the inner end of the ball assembly and limiting the extraction of the inner rail.
10. The improved two-section slide rail according to claim 1, wherein: At least two outwardly extending pressure rivets are arranged on the outer rail, and at least two outwardly extending pressure rivets are arranged on the inner rail, and the inner side of the outer rail is relative to the inner side of the inner rail.