Linkage hidden sliding rail mechanism
By linking the hidden slide rail mechanism, the upper and lower outer rails are linked by a flexible synchronous belt and pulley assembly. Combined with end blocks and tension adjustment devices, the problem of unstable slide rail sliding is solved, and the stability of the slide rail and space saving are achieved.
Patent Information
- Application Number
- CN202520387540.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-06
AI Technical Summary
In existing three-stage slide rails, the upper rail, lower rail, and middle rail are prone to detaching during sliding, resulting in unstable sliding. Therefore, it is necessary to add a positioning structure and increase the installation space.
The system employs a linked concealed slide rail mechanism, which uses a flexible synchronous belt and pulley assembly to link the upper and lower outer rails. Combined with end blocks and tension adjustment devices, it ensures sliding stability and conceals the ends of the synchronous belt with fixing devices and fixing sleeves, reducing installation space.
It achieves stable linkage of the slide rails, avoids detachment, saves installation space, and is easy to assemble and disassemble, with a smoother and more compact overall structure.
Smart Images
Figure CN223859446U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to slide rail, concretely relates to a linkage hidden slide rail mechanism. BACKGROUND
[0002] In the prior art three-stage slide rail, the upper rail can slide relative to the middle rail, and the middle rail can slide relative to the lower rail. The problem in the prior art is that the upper rail, the middle rail and the lower rail are relatively independent in the sliding process, so there is the problem of unstable sliding. For example, the upper rail and the middle rail, or the middle rail and the lower rail are easily pulled off. In order to maintain the stability of the slide rail, various positioning structures need to be added, which increases the installation space of the slide rail. SUMMARY
[0003] In view of the deficiencies of the prior art, the utility model discloses a linkage hidden slide rail mechanism.
[0004] The technical scheme adopted by the utility model is as follows:
[0005] A linkage hidden slide rail mechanism, the slide rail mechanism comprises a middle rail, an outer rail which can slide relative to the middle rail within the track range of the middle rail and a synchronous belt; a pulley assembly is fixed at each end of the middle rail;
[0006] The outer rail comprises an upper outer rail and a lower outer rail; the synchronous belt is flexible and comprises a first synchronous belt and a second synchronous belt; the first end of the upper outer rail is connected to the first end of the lower outer rail through the first synchronous belt, and the belt body of the first synchronous belt passes around the pulley assembly installed at the first end of the middle rail; the second end of the upper outer rail is connected to the second end of the lower outer rail through the second synchronous belt, and the belt body of the second synchronous belt passes around the pulley assembly installed at the second end of the middle rail.
[0007] A further technical scheme is that an end block is fixed at each end of the middle rail.
[0008] A further technical scheme is that the end block is provided with an upper groove and a lower groove which penetrate through the sliding direction of the slide rail, and the synchronous belt is arranged along the upper groove and the lower groove.
[0009] A further technical scheme is that the pulley assembly is installed on the end block.
[0010] A further technical scheme is that the slide rail mechanism further comprises a tensioning adjusting device; the tensioning adjusting device comprises an adjusting cam; the adjusting cam is configured to adjust the position of the end block by changing the position of the interference surface so as to tension the synchronous belt.
[0011] Further, the pulley assembly comprises at least two pulleys, and the two pulleys are respectively arranged at two corners of the outer side of the end block.
[0012] Further, two ends of the synchronous belt are respectively fixed to the upper side of the upper outer rail and the lower side of the lower outer rail.
[0013] Further, the slide rail mechanism further comprises a fixing device, the fixing device is arranged on the upper side of the upper outer rail and the lower side of the lower outer rail, the fixing device comprises a first fixing plate and a second fixing plate which are perpendicular to each other, the first fixing plate is fixed to the upper outer rail or the lower outer rail, and the second fixing plate is used for being fixed to an external device.
[0014] Further, the end of the synchronous belt is fixed to the outer rail through a fixing sleeve, the fixing sleeve comprises a fixing head and a protective sleeve connected to the fixing head, a fastening device passes through the fixing head to fix the end of the synchronous belt to the outer rail, and the body of the synchronous belt passes through the protective sleeve and then winds around the pulley assembly.
[0015] The beneficial effects of the embodiment of the utility model are as follows:
[0016] The technical scheme provided by the embodiment of the utility model can form a linkage sliding system for the upper outer rail and the lower outer rail, make the whole slide rail mechanism slide more stably and smoothly, avoid the problems that the slide rails are easily separated from the track or the slide rails are easily separated from each other during sliding, and increase the stability of the slide rail mechanism.
[0017] The embodiment of the utility model can conveniently complete the disassembly and tensioning process of the flexible synchronous belt through the setting of the tensioning adjusting device.
[0018] The slide rail is flat as a whole, the uppermost end of the fixing sleeve and the fastening device for fixing the fixing sleeve is flush with the edge of the end block, the outline of the slide rail is more neat, most of the linkage system of the slide rail is hidden in the end block, and the setting of various structures reduces the installation space occupied by the slide rail to the minimum. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structural schematic view of the embodiment of the utility model.
[0020] Figure 2 is Figure 1 is an enlarged schematic view of part A in figure 1.
[0021] Figure 3 is a schematic view of the pulley disassembled in the embodiment of the utility model,
[0022] Figure 4 is Figure 3 is an enlarged schematic view of part D in
[0023] Figure 5 is a structural schematic view of another perspective of an embodiment of the present application.
[0024] Figure 6 is Figure 5 is a schematic view of the end block and the synchronous belt being detached from the structure shown in
[0025] Figure 7 is Figure 1 is an enlarged schematic view of part B in
[0026] Figure 8 is Figure 1 is an enlarged schematic view of part C in
[0027] Figure 9 is a first state schematic view of an embodiment of the present application.
[0028] Figure 10 is a second state schematic view of an embodiment of the present application.
[0029] Figure 11 is a third state schematic view of an embodiment of the present application.
[0030] In the figure: 1, middle rail; 2, upper outer rail; 3, lower outer rail; 4, first synchronous belt; 5, second synchronous belt; 6, pulley assembly; 601, pulley body; 602, shaft body; 603, positioning end; 7, end block; 701, upper groove; 702, lower groove; 703, mounting groove; 8, adjusting cam; 9, adjusting edge; 10, waist-shaped hole; 11, fixing device; 111, first fixing plate; 112, second fixing plate; 12, fixing sleeve; 121, fixing head; 122, protective sleeve. DETAILED DESCRIPTION
[0031] The specific embodiments of the present application will be described below in conjunction with the accompanying drawings.
[0032] Figure 1 is a structural schematic view of an embodiment of the present application. As shown in Figure 1 The present application discloses a linkage hidden slide rail mechanism, which comprises a middle rail 1, outer rails and synchronous belts that can slide relative to the middle rail 1 within the track range of the middle rail 1. A pulley assembly 6 is fixed at each end of the middle rail 1.
[0033] The outer rails include an upper outer rail 2 and a lower outer rail 3. The lengths of the upper outer rail 2 and the lower outer rail 3 are shorter than the length of the sliding track range of the middle rail 1. In this embodiment, the lengths of the upper outer rail 2 and the lower outer rail 3 are equal, and the length of the middle rail 1 is greater than twice the length of the upper outer rail 2, which ensures that the slide rail mechanism has a sufficiently long sliding distance.
[0034] The timing belt is flexible, preferably a flexible rope or a belt structure made of flexible material. Of course, it can also be a chain structure or other flexible forms that are flexible as a whole.
[0035] The synchronous belt includes a first synchronous belt 4 and a second synchronous belt 5. The first end of the upper outer rail 2 is connected to the first end of the lower outer rail 3 via the first synchronous belt 4, and the belt body of the first synchronous belt 4 passes over the pulley assembly 6 installed at the first end of the middle rail 1. The second end of the upper outer rail 2 is connected to the second end of the lower outer rail 3 via the second synchronous belt 5, and the belt body of the second synchronous belt 5 passes over the pulley assembly 6 installed at the second end of the middle rail 1. Here and elsewhere in this document, the first end or second end of the rail refers to a position on the rail body near the rail end.
[0036] exist Figure 1 In the slide rail mechanism shown, when the upper outer rail 2 slides relative to the middle rail 1 in the first direction, the first synchronous belt 4 and the second synchronous belt 5 can simultaneously drive the lower outer rail 3 to slide in the second direction. The pulley assembly 6 is used to limit the movement direction of the synchronous belts and make the sliding of the entire slide rail mechanism smoother. This arrangement allows the upper outer rail 2 and the lower outer rail 3 to form a linked sliding system, making the sliding of the entire slide rail mechanism more stable and smooth. Furthermore, the linked sliding system avoids the problem of the slide rail easily detaching from the track or the slide rails easily separating from each other during the sliding process.
[0037] Furthermore, an end stop 7 is fixed at each end of the middle rail 1 to enclose the slide rail mechanism, further preventing the slide rails from separating during the sliding process and ensuring that the upper outer rail 2 and the lower outer rail 3 slide within the track range of the middle rail 1.
[0038] Figure 2 yes Figure 1 An enlarged diagram of part A in the diagram. (See attached image.) Figure 2 As shown, furthermore, the end stop 7 is provided with an upper groove 701 and a lower groove 702 that extend in the sliding direction of the slide rail, and the synchronous belt is arranged along the upper groove 701 and the lower groove 702. Figure 2For example, the second synchronous belt 5 is arranged along the upper groove 701 after the first end of the second synchronous belt 5 is connected to the second end of the upper rail 2, and passes through the pulley assembly 6 arranged at the second end of the middle rail 1, and then is arranged along the lower groove 702, and finally the second end of the second synchronous belt 5 is connected to the second end of the lower rail 3. The arrangement of the upper groove 701 and the lower groove 702 further increases the stability during the sliding of the sliding rail, and avoids the problem that the position of the flexible synchronous belt may deviate.
[0039] Further, the pulley assembly 6 is arranged on the end block 7. Figure 3 is a schematic view of the pulley being disassembled in the embodiment of the utility model, Figure 4 is Figure 3 is an enlarged schematic view of the D part. As shown in Figure 3 , Figure 4 , preferably, the pulley assembly 6 comprises at least two pulleys. The two pulleys are respectively arranged at two corners of the outer side of the end block 7. As shown in Figure 2 , the pulley comprises a pulley body 601, a shaft body 602 and a positioning end 603, the pulley body 601 is arranged on the shaft body 602, both ends of the shaft body 602 are arranged on the two side walls of the end block 7, and the positioning end 603 is clamped in the mounting groove 703 of the outer side wall of the end block 7. The synchronous belt passes through the groove in the middle of the pulley body 601, which can ensure that the synchronous belt slides smoothly around the pulley, and increase the smoothness of the sliding of the sliding rail.
[0040] Further, the pulley assembly 6 comprises at least two pulleys. The two pulleys are respectively arranged at two corners of the outer side of the end block 7, so that the synchronous belt is fully tensioned and does not interfere with the position of the end block 7 during movement.
[0041] Further, as shown in Figure 1 , both ends of the synchronous belt are respectively fixed to the upper side of the upper rail 2 and the lower side of the lower rail 3. This can make the whole sliding rail become a flat structure, and save more installation space.
[0042] Figure 5 is a structural schematic view of another perspective of the embodiment of the utility model. Figure 6 is Figure 5 , as shown in the structure, the end block and the synchronous belt are disassembled. As shown in Figure 5 , Figure 6 , further, the sliding rail mechanism further comprises a tensioning adjusting device. The tensioning adjusting device comprises an adjusting cam 8, and the adjusting cam 8 is configured to adjust the position of the end block 7 by changing the position of the interference surface, so as to tension the synchronous belt.
[0043] In this embodiment, the adjusting edge 9 is arranged on the inner side of the end block 7, and the waist-shaped hole 10 is arranged at the end of the middle rail 1.
[0044] In order to save space, the adjusting edge 9 is arranged in an inner concave structure inside the end block 7, and in order to ensure the stability of the adjusting process, the adjusting edge 9 is preferably arranged in a circular arc shape suitable for fitting the head of the adjusting cam 8. Of course, the adjusting edge 9 can also be other shapes that can cooperate with the adjusting cam 8.
[0045] The waist-shaped hole 10 is arranged along the sliding direction of the smooth rail, and the end block 7 is installed in the waist-shaped hole 10 through a fastening device. The head of the adjusting cam 8 includes a circumferential edge and an eccentric arc edge, wherein the circumferential edge is an arc segment of a complete circular edge, and the eccentric arc edge is an edge that deviates from the central axis of the screw by a certain distance, and the eccentric arc edge serves as an interference surface. When the circumferential edge of the head of the adjusting cam 8 fits the adjusting edge 9, the fastening device is located at the inner end of the waist-shaped hole 10. When the eccentric arc edge of the head of the adjusting cam 8 fits the adjusting edge 9, the fastening device is located at the outer end of the waist-shaped hole 10.
[0046] In this article, the inner side of the end block 7 and the inner end of the waist-shaped hole 10 are positions closer to the center of the middle rail 1, and the outer side of the end block 7 and the outer end of the waist-shaped hole 10 are positions closer to the end of the middle rail 1.
[0047] Therefore, when the head of the adjusting cam 8 is rotated to make the circumferential edge of the head of the adjusting cam 8 fit the adjusting edge 9, the fastening device is located at the inner end of the waist-shaped hole 10, and the end block 7 is closer to the center of the middle rail 1, at which time the positions of the two sets of pulley assemblies 6 are close to each other, the state of the synchronous belt becomes loose, and it is easy to disassemble and assemble. When the head of the adjusting cam 8 is rotated to make the eccentric arc edge of the head of the adjusting cam 8 fit the adjusting edge 9, an acting force is generated between the end block 7 and the adjusting cam 8, the end block 7 is pushed out, the fastening device is located at the outer end of the waist-shaped hole 10, and the end block 7 moves away from the center of the middle rail 1, at which time the positions of the two sets of pulley assemblies 6 are far away from each other, and the synchronous belt is tensioned, which is more suitable for the sliding of the smooth rail.
[0048] The use of the tension adjusting device can complete the tension adjustment of the flexible synchronous belt.
[0049] Figure 7 is Figure 1 An enlarged schematic view of the B part of the middle. In combination with Figure 1 , Figure 5 , Figure 7 , the smooth rail mechanism further includes a fixing device 11. The fixing device 11 is installed on the upper side of the upper outer rail 2 and the lower side of the lower outer rail 3. The fixing device 11 includes a first fixing plate 111 and a second fixing plate 112 perpendicular to each other. The first fixing plate 111 is fixed to the upper outer rail 2 or the lower outer rail 3. The second fixing plate 112 is used to be fixed with an external device. The external device is furniture, electrical appliances and the like that need to be installed with the smooth rail mechanism.
[0050] Figure 8 isFigure 1 Enlarged view of the middle C section. As Figure 1 , Figure 8 shown, the end of the synchronous belt is fixed to the outer rail by a fixing sleeve 12. The fixing sleeve 12 comprises a fixing head 121 and a protective sleeve 122 connected to the fixing head 121. The protective sleeve 122 is a sleeve structure extending along the direction of the synchronous belt, used to surround a small section of the synchronous belt close to the end. The fastening device passes through the fixing head 121 to fix the end of the synchronous belt to the outer rail. The body of the synchronous belt passes through the protective sleeve 122 and then passes around the pulley assembly 6. The fixing sleeve 12 can further limit the movement direction of the flexible synchronous belt, prevent displacement and skewing during sliding, increase the stability of the sliding rail, and also protect the end of the synchronous belt from friction damage.
[0051] Further, the uppermost end of the fixing sleeve 12 and the fastening device for fixing the fixing sleeve 12 is flush with the edge of the end block 7, so that the profile of the sliding rail is more neat and the space occupied by the sliding rail is minimized.
[0052] Figure 9 is the first state schematic view of the embodiment of the utility model. Figure 10 is the second state schematic view of the embodiment of the utility model. Figure 11 is the third state schematic view of the embodiment of the utility model.
[0053] As Figure 9 shown, the upper outer rail 2 is located at a position relatively right of the middle rail 1, and the lower outer rail 3 is located at a position relatively left of the middle rail 1. The upper outer rail 2 faces a first direction, that is, when sliding left, under the constraint of the first synchronous belt 4, the second synchronous belt 5 and the pulley assembly 6 and transmission, the lower outer rail 3 faces a second direction opposite to the first direction, that is, synchronously slides right.
[0054] As Figure 10 shown, in the second state, the upper outer rail 2 and the lower outer rail 3 continue to move to positions substantially at the middle of the middle rail 1.
[0055] As Figure 11 shown, in the third state, the upper outer rail 2 continues to slide left to a position at the left end of the middle rail 1, and at this time the lower outer rail 3 slides to a position at the right end of the middle rail 1.
[0056] The sliding rail mechanism further comprises a fixing device 11, which can comprise a first fixing plate 111 and a second fixing plate 112 perpendicular to each other as Figure 7 shown.
[0057] The linkage hidden slide rail mechanism provided by the embodiment of the utility model can ensure stable sliding of the slide rail, can avoid derailment, is convenient to disassemble and assemble, the linkage synchronization device is completely hidden in the slide rail, the volume is small, and the installation space of the slide rail is saved.
[0058] The above description is an explanation of the utility model, not a limitation of the utility model, the range defined by the utility model is referred to the claims, and the utility model can be modified in any form without departing from the basic structure of the utility model.
Claims
1. A linked hidden slide rail mechanism, characterized by: The slide rail mechanism comprises a middle rail, an outer rail slidable relative to the middle rail within the track range of the middle rail, and a synchronous belt; a pulley assembly is fixed at each end of the middle rail; The outer rail comprises an upper outer rail and a lower outer rail; the synchronous belt is flexible and comprises a first synchronous belt and a second synchronous belt; the first end of the upper outer rail is connected to the first end of the lower outer rail through the first synchronous belt, and the belt body of the first synchronous belt passes around the pulley assembly installed at the first end of the middle rail; the second end of the upper outer rail is connected to the second end of the lower outer rail through the second synchronous belt, and the belt body of the second synchronous belt passes around the pulley assembly installed at the second end of the middle rail.
2. The linked hidden slide rail mechanism according to claim 1, wherein: An end block is fixed at each end of the middle rail.
3. The linked hidden slide rail mechanism according to claim 2, wherein, The end block is provided with an upper groove and a lower groove penetrating in the sliding direction of the slide rail, and the synchronous belt is arranged along the upper groove and the lower groove.
4. The linked hidden slide rail mechanism according to claim 2, wherein: The pulley assembly is installed on the end block.
5. The linked hidden slide rail mechanism according to claim 4, wherein, The slide rail mechanism further comprises a tensioning adjusting device; the tensioning adjusting device comprises an adjusting cam; the adjusting cam is configured to adjust the position of the end block by changing the position of the interference surface so as to tension the synchronous belt.
6. The linked hidden slide rail mechanism according to claim 4, wherein, The pulley assembly comprises at least two pulleys; the two pulleys are respectively installed at two corners of the outer side of the end block.
7. The linked hidden slide rail mechanism according to claim 1, wherein, The two ends of the synchronous belt are respectively fixed to the upper side of the upper outer rail and the lower side of the lower outer rail.
8. The linked hidden slide rail mechanism according to claim 1, wherein, The slide rail mechanism further comprises a fixing device; the fixing device is installed on the upper side of the upper outer rail and the lower side of the lower outer rail; the fixing device comprises a first fixing plate and a second fixing plate perpendicular to each other; the first fixing plate is fixed to the upper outer rail or the lower outer rail; the second fixing plate is used to be fixed with an external device.
9. The linked hidden slide rail mechanism according to claim 1, wherein, The end of the synchronous belt is fixed to the outer rail through a fixing sleeve; the fixing sleeve comprises a fixing head and a protective sleeve connected to the fixing head; a fastening device passes through the fixing head to fix the end of the synchronous belt to the outer rail; the belt body of the synchronous belt passes around the pulley assembly after passing through the protective sleeve. The end of the synchronous belt is fixed to the outer rail through a fixing sleeve; the fixing sleeve comprises a fixing head and a protective sleeve connected to the fixing head; a fastening device passes through the fixing head to fix the end of the synchronous belt to the outer rail; the belt body of the synchronous belt passes around the pulley assembly after passing through the protective sleeve.