Automatic telescopic sliding rail structure with locking function

Abstract

The invention relates to the technical field of sliding rails, and discloses an automatic telescopic sliding rail structure with a locking function, the automatic telescopic sliding rail structure comprises an outer rail, an inner rail and two ball bearings, the inner rail is slidably connected in the outer rail through the two ball bearings, and the two ends of the outer rail are each provided with a passive locking mechanism and an active locking mechanism; and the active locking mechanism is arranged on the outer side of the passive locking mechanism. The passive locking mechanism can limit the inner rail in a one-way mode in the sliding process of the inner rail, a pawl in the passive locking mechanism is matched with a gear, certain resistance can be generated on a rack, the resistance can simply lock the inner rail so that the inner rail cannot slide easily, meanwhile, the inner rail cannot be completely locked, sliding of the inner rail is controllable, and the service life of the inner rail is prolonged. A shifting block in the passive locking mechanism can rotate, the slidable direction of the inner rail can be easily adjusted by changing the direction of the shifting block, the inner rail can be completely locked, and when the inner rail slides to the end of the outer rail, the inner rail and the outer rail can be locked and fixed through the active locking mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of slide rails, and in particular to an automatic telescopic slide rail structure with a locking function. Background Art

[0002] A telescopic slide rail is a device used to achieve linear motion of an object. It usually includes an inner rail and an outer rail. The inner rail is slidably connected to the outer rail, and both the inner and outer rails are provided with holes for installing other components. Telescopic slide rails are widely used in industries such as mechanical equipment, electronic manufacturing, automotive manufacturing, and aerospace. For example, they are used for supporting and guiding during the push-pull of drawers for auxiliary testing, and are installed on the sheet metal door bodies around the machining parts of machine tools for picking up, clamping workpieces, and supporting and guiding the door panels when opening and closing the doors.

[0003] After retrieval, in the patent document with the publication number CN118224180B, an automatic telescopic slide rail structure with a locking function is provided. Among them, the left and right slide rails are connected by a stacked coupler. The left and right slide rails have two working states: expansion and retraction. In order to ensure that the slide rails can be reliably fixed and locked in both states, a plurality of locking parts are provided between the stacked coupler and the left and right slide rails. When the slide rail moves to the end of the stacked coupler, the two are fixed together by the locking parts. This fixing method makes the slide rail unable to be locked during the movement process and can only be locked in a static state. The slide rail is slidably connected to the stacked coupler. When the stacked coupler is offset or affected by an external force in a non-movement direction, the slide rail will slide uncontrollably on the stacked coupler. After the slide rail slides, there will be a deviation in its position on the stacked coupler, which may affect the user experience. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic telescopic slide rail structure with a locking function to solve the problems of uncontrollable movement direction of the slide rail and easy generation of sliding deviation due to external force interference mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An automatic telescopic slide rail structure with a locking function, comprising an outer rail, an inner rail and two ball bearings. The inner rail is slidably connected in the outer rail through the two ball bearings. A passive locking mechanism and an active locking mechanism are arranged at both ends of the outer rail. The active locking mechanism is arranged outside the passive locking mechanism. The two passive locking mechanisms are arranged symmetrically in opposite directions. Rack bars are fixed on both inner side walls of the inner rail. The two rack bars are respectively used in cooperation with the passive locking mechanisms on the same side to unidirectionally limit the inner rail when it slides. The locking direction of the passive locking mechanism is adjustable. By adjusting the locking direction of the passive locking mechanism, the inner rail can be unidirectionally limited during sliding in different directions, or the inner rail can be bidirectionally limited. The active locking mechanism is arranged at the end of the outer rail and is used to lock the inner rail when it slides to the end of the outer rail.

[0007] As a further solution of the present invention: The ball bearing comprises a ball and a bearing housing. The ball is ball-hinged in the bearing housing. The bearing housing is slidably connected to the side wall of the outer rail. The two side walls of the inner rail are slidably attached to the balls on both sides. Arc-shaped retaining edges are detachably connected to the outer edges at both ends of the inner rail. The two retaining edges at the same end cooperate with the ends of the ball bearings to clamp and limit the inner rail in the outer rail.

[0008] As a further solution of the present invention: The passive locking mechanism comprises a gear. The gear is rotatably connected to the outer rail. The rack bar is meshed and connected to one side of the gear. Two pawls are rotatably connected to the other side of the gear. The two pawls are symmetrically arranged. One ends of the two pawls are rotatably connected to the outer rail through a rotating shaft, and the other ends of the two pawls are inserted into the tooth gaps of the gear. Fixed blocks are arranged on the outer sides of the two pawls. A first spring is arranged between each of the two fixed blocks and the corresponding pawl. A dial is arranged between the two pawls. The dial is in the shape of a crank with one large end and one small end. The small end of the dial is rotatably connected to the outer rail through a transmission shaft.

[0009] As a further solution of the present invention: One end of the transmission shaft is hollowed out to form a cavity. A sliding column is slidably connected in the cavity. The sliding column has a regular polygon structure. A second spring is also arranged in the cavity. Two ends of the second spring are respectively connected and fixed to the sliding column and the inner wall of the top of the cavity. One end of the sliding column extends to the outside of the cavity. A card slot is opened on the inner wall of the outer rail corresponding to the sliding column. The shape of the card slot is adapted to the outer shape of the sliding column. One end of the sliding column extends out of the cavity and is inserted into the card slot.

[0010] As a further solution of the present invention: a knob with a pointing arrow is arranged below the sliding column. The knob is arranged outside the outer rail. The knob is fixedly connected to one end of the sliding column through a connecting rod. A hole groove is formed on one side of the inner wall of the outer rail corresponding to the connecting rod, and the connecting rod is movably arranged in the hole groove.

[0011] As a further solution of the present invention: the active locking mechanism includes a housing which is fixed in the outer rail. Through grooves are formed on both the front and rear sides of the housing. A sliding seat is arranged inside the housing. A guiding strip is arranged on one side of the inner wall of the housing corresponding to the sliding seat. The sliding seat is slidably connected in the housing through the guiding strip. A turntable is eccentrically rotatably connected to one side of the housing corresponding to the sliding seat through a rotating shaft. One side of the turntable abuts against the side wall of the sliding seat. An opening is arranged on one side of the housing corresponding to the turntable. One end of the rotating shaft rotatably penetrates through the inner wall of the outer rail and a dial rod is fixed at the end of the rotating shaft. The dial rod is arranged outside the outer rail.

[0012] As a further solution of the present invention: a mounting strip is arranged on one side of the housing corresponding to the sliding seat. A mounting hole is formed at the center of the inner wall of one side of the sliding seat. A third spring is fixed in the mounting hole. One end of the third spring extends outwards and is fixed on the mounting strip.

[0013] As a further solution of the present invention: abutting blocks are placed on both sides of the top of the sliding seat. Waist-shaped grooves penetrating up and down are formed on the inner walls of the two abutting blocks. The two waist-shaped grooves are both inclined, and one end thereof is inclined towards the center position of the sliding seat. One ends of the two abutting blocks respectively slide out from the corresponding through grooves on one side. Guide columns are fixed on one side of the top of the sliding seat corresponding to the two waist-shaped grooves. One end of the guide column is movably inserted into the corresponding waist-shaped groove.

[0014] As a further solution of the present invention: one ends of the two abutting blocks sliding outwards are bent inwards to form arc-shaped abutting parts. Anti-slip structures are arranged on the abutting parts. The heights of the two abutting blocks are both higher than that of the rack.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] In the present invention, the passive locking mechanism can unidirectionally limit the inner rail during its sliding process. The ratchet pawl in the passive locking mechanism cooperates with the gear, and can generate a certain resistance to the rack. This resistance can simply lock the inner rail so that it will not slide easily, and at the same time, it will not completely lock the inner rail. The sliding of the inner rail is controllable. The dial block in the passive locking mechanism can rotate. By changing the direction of the dial block, the sliding direction of the inner rail can be easily adjusted, and the inner rail can also be completely locked. When the inner rail slides to the end of the outer rail, the inner and outer rails can be locked and fixed by the active locking mechanism. The active locking mechanism and the passive locking mechanism cooperate with each other, and can perform double locking during the sliding process of the inner rail and in the static state when the inner rail slides to the end of the outer rail. The fixing of the inner rail is more reliable, and the fixing method of the inner rail is more flexible, which is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the present invention.

[0019] Figure 2 It is Figure 1 an enlarged view of A in

[0020] Figure 3 It is a first perspective view of the separated structure of the present invention.

[0021] Figure 4 It is a second perspective view of the separated structure of the present invention.

[0022] Figure 5 It is a schematic connection diagram of the passive locking mechanism and the outer rail in the present invention.

[0023] Figure 6 It is Figure 5 an enlarged view of B in

[0024] Figure 7 It is a schematic connection diagram of the passive locking mechanism and the rack in the present invention.

[0025] Figure 8 It is a schematic connection diagram of the dial block and the knob in the passive locking mechanism.

[0026] Figure 9 It is a schematic structural diagram of the active locking mechanism in the present invention.

[0027] Figure 10 It is a separated view of the structure of the active locking mechanism in the present invention.

[0028] Figure 11 It is a schematic diagram of the connection between the sliding seat and the turntable in the active locking mechanism.

[0029] Annotation of reference numerals in the drawings: 1 - outer rail, 2 - inner rail, 3 - passive locking mechanism, 31 - gear, 32 - pawl, 33 - shifting block, 34 - first spring, 35 - fixed block, 36 - transmission shaft, 37 - cavity, 38 - second spring, 39 - sliding column, 310 - knob, 4 - active locking mechanism, 41 - housing, 42 - through slot, 43 - opening, 44 - mounting strip, 45 - third spring, 46 - guiding strip, 47 - sliding seat, 48 - mounting hole, 49 - guiding column, 410 - abutting block, 411 - waist-shaped slot, 412 - abutting portion, 413 - turntable, 414 - rotating shaft, 415 - lever, 5 - ball bearing, 6 - rack, 7 - edge stop. Specific embodiments

[0030] The following embodiments will describe the present invention in detail with reference to the drawings. In the drawings or descriptions, similar or identical parts are denoted by the same reference numerals, and in actual applications, the shapes, thicknesses or heights of the components can be enlarged or reduced. The various embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modification or change made to the present invention does not depart from the spirit and scope of the present invention.

[0031] Please refer to Figures 1 to 4 , in the embodiment of the present invention, an automatic telescopic slide rail structure with a locking function includes an outer rail 1, an inner rail 2 and two ball bearings 5. The inner rail 2 is slidably connected to the outer rail 1 through the two ball bearings 5. The ball bearing 5 includes balls and a bearing housing. The balls are ball-jointed in the bearing housing, and the bearing housing is slidably connected to the side wall of the outer rail 1. The two side walls of the inner rail 2 are slidably attached to the two sides of the balls. The outer edges at both ends of the inner rail 2 are detachably connected with arc-shaped edge stops 7. The two edge stops 7 at the same end cooperate with the ends of the ball bearings 5 to limit and hold the inner rail 2 in the outer rail 1, preventing the inner rail 2 from falling off when it slides to the edge of the outer rail 1;

[0032] A passive locking mechanism 3 and an active locking mechanism 4 are provided at both ends of the outer rail 1. Among them, the active locking mechanism 4 is arranged outside the passive locking mechanism 3. The two passive locking mechanisms 3 are arranged symmetrically in the opposite direction. Rack bars 6 are fixed on both inner side walls of the inner rail 2. The two rack bars 6 are respectively used in cooperation with the passive locking mechanism 3 on the same side to perform one-way limit on the inner rail 2 when it slides. The locking direction of the passive locking mechanism 3 is adjustable. By adjusting the locking direction of the passive locking mechanism 3, one-way limit can be performed on the sliding of the inner rail 2 in different directions, or two-way limit can be performed on the inner rail 2. The active locking mechanism 4 is arranged at the end of the outer rail 1 to lock the inner rail 2 when it slides to the end of the outer rail 1.

[0033] Please refer to Figures 5 to 8 Figures 5 to 8 , the passive locking mechanism 3 includes a gear 31 which is rotatably connected to the outer rail 1. A rack 6 is meshed and connected to one side of the gear 31. Two pawls 32 are rotatably connected to the other side of the gear 31. The two pawls 32 are symmetrically arranged. One ends of the two pawls 32 are rotatably connected to the outer rail 1 through a rotating shaft, and the other ends of the two pawls 32 are inserted into the tooth gaps of the gear 31. Fixed blocks 35 are arranged on the outer sides of the two pawls 32. The two fixed blocks 35 are both fixedly connected to the outer rail 1. First springs 34 are arranged between the two fixed blocks 35 and the corresponding pawls 32 on one side. Two ends of the first spring 34 are respectively fixedly connected to the fixed block 35 on the corresponding side and the side wall of the pawl 32;

[0034] A dial block 33 is arranged between the two pawls 32. The dial block 33 is in the shape of a crank with one end large and the other end small. Among them, the large end of the dial block 33 can abut against the side wall of the pawl 32. The small end of the dial block 33 is rotatably connected to the outer rail 1. The dial block 33 is rotatably connected to the outer rail 1 through a transmission shaft 36. One end of the transmission shaft 36 is hollowed out to form a cavity 37. A sliding column 39 is slidably connected in the cavity 37. The sliding column 39 has a regular polygon structure. A second spring 38 is also arranged in the cavity 37. Two ends of the second spring 38 are respectively fixedly connected to the sliding column 39 and the inner wall of the top of the cavity 37;

[0035] One end of the sliding column 39 extends to the outside of the cavity 37. A clamping groove is formed on one side of the inner wall of the outer rail 1 corresponding to the sliding column 39. The shape of the clamping groove is adapted to the outer shape of the sliding column 39. One end of the sliding column 39 extends out of the cavity 37 and is inserted into the clamping groove. When the sliding column 39 is inserted into the clamping groove, the sliding column 39 will be fixed. A knob 310 with a pointing arrow is arranged below the sliding column 39. The knob 310 is arranged outside the outer rail 1. The knob 310 is fixedly connected to one end of the sliding column 39 through a connecting rod. A hole groove is formed on one side of the inner wall of the outer rail 1 corresponding to the connecting rod. The diameter of the hole groove is larger than the diameter of the connecting rod. The connecting rod can slide up and down and rotate in the hole groove;

[0036] In this embodiment, when it is necessary to rotate the dial block 33, first press the knob 310 upward to pull out one end of the sliding column 39 from the clamping groove and push it into the cavity 37 to release the restriction on the transmission shaft 36. At this time, the transmission shaft 36 can rotate freely. Then rotate the knob 310 to drive the dial block 33 to rotate synchronously. By adjusting the pressing direction of the dial block 33, the rotatable direction of the gear 31 can be changed. By changing the rotatable direction of the gear 31, the limit of the passive locking mechanism 3 on the rack 6 and the inner rail 2 in the sliding direction can be adjusted. There are three cases for the limiting direction of the passive locking mechanism 3:

[0037] First, rotate the dial 33 to squeeze the pawl 32 on the corresponding side and move one end of the pawl 32 on this side out of the tooth gap of the gear 31, so that the gear 31 can rotate clockwise. At this time, the rack 6 cooperates with the gear 31, enabling the inner rail 2 to slide unidirectionally to the left on the outer rail 1. Due to the presence of the pawl 32, a certain resistance will be generated when the rack 6 contacts the gear 31. This resistance can simply lock the inner rail 2 when it slides, preventing the inner rail 2 from sliding randomly;

[0038] Second, rotate the dial 33 to enable the gear 31 to rotate counterclockwise. At this time, the rack 6 cooperates with the gear 31, enabling the inner rail 2 to slide unidirectionally to the right on the outer rail 1. And at this time, the pawl 32 will also generate resistance between the rack 6 and the gear 31. This resistance can also simply lock the inner rail 2 when it slides, preventing the inner rail 2 from sliding randomly;

[0039] Third, rotate the dial 33 so that its large - head end is in the middle position between the two pawls 32. At this time, the dial 33 does not squeeze any side of the pawl 32. Under the action of the corresponding first spring 34, the two pawls 32 rotate inward simultaneously, and one end of the two pawls 32 is inserted into the tooth gap of the gear 31 at the same time. At this time, the gear 31 is locked and cannot rotate. Correspondingly, the rack 6 engaged with the gear 31 cannot move anymore, and at this time, the inner rail 2 is locked in the outer rail 1.

[0040] Please refer to Figures 9 to 11 , the active locking mechanism 4 includes a housing 41. The housing 41 is fixed in the outer rail 1. Through slots 42 are provided on both the front and rear sides of the housing 41. A sliding seat 47 is arranged inside the housing 41. A guiding strip 46 is provided on one side of the inner wall of the housing 41 corresponding to the sliding seat 47. The sliding seat 47 is slidably connected to the housing 41 through the guiding strip 46. An installation strip 44 is provided on one side of the housing 41 corresponding to the sliding seat 47. An installation hole 48 is provided at the center of the inner wall of one side of the sliding seat 47. A third spring 45 is fixed in the installation hole 48. One end of the third spring 45 extends outward and is fixed on the installation strip 44;

[0041] On both sides of the top of the sliding seat 47, abutting blocks 410 are placed. Through slots 411 penetrating up and down are formed on the inner walls of the two abutting blocks 410. The two through slots 411 are both inclined, with one end inclined towards the center position of the sliding seat 47. One ends of the two abutting blocks 410 respectively slide out from the through slots 42 on the corresponding sides. The outward-sliding ends of the two abutting blocks 410 are both bent inwards to form arc-shaped abutting parts 412. Anti-slip structures are arranged on the abutting parts 412. The anti-slip structures are rubber pads or other structures. The abutting parts 412 are in direct contact with the side wall of the inner rail 2. The height of the abutting blocks 410 is higher than that of the rack 6. When the abutting blocks 410 extend out of the housing 41, they will not squeeze the rack 6. On one side of the top of the sliding seat 47 corresponding to the two through slots 411, guide posts 49 are fixed. One end of the guide post 49 is movably inserted into the through slot 411.

[0042] On one side of the inside of the housing 41 corresponding to the sliding seat 47, a turntable 413 is eccentrically rotatably connected through a rotating shaft 414. One side of the turntable 413 abuts against the side wall of the sliding seat 47. An opening 43 is arranged on the side of the housing 41 corresponding to the turntable 413. When the turntable 413 eccentrically rotates 180 degrees, the disc body can extend outwards from the opening 43. One end of the rotating shaft 414 rotatably penetrates the inner wall of the outer rail 1 and a lever 415 is fixed at the end of the rotating shaft 414. The lever 415 is arranged outside the outer rail 1.

[0043] In this embodiment, when the inner rail 2 slides to the end of the outer rail 1, the inner and outer rails can be fixed through the active locking mechanism 4. Specifically, by rotating the lever 415 to rotate the turntable 413, the turntable 413 is eccentrically rotatably connected in the housing 41. When the turntable 413 rotates, the diameter of the disc surface on the side contacting the sliding seat 47 gradually decreases. The sliding seat 47 gradually slides to one side under the action of the third spring 45. When the sliding seat 47 slides to one side, the two abutting blocks 410 on its top will gradually extend outwards from the through slots 42 under the cooperation of the guide posts 49 and the through slots 411 until the abutting parts 412 abut tightly against the side wall of the inner rail 2. The two abutting blocks 410 cooperate with each other and hold the inner rail 2 from both sides at the same time to fix the inner rail 2. When unlocking is required, rotate the lever 415 in the reverse direction so that the disc surface of the turntable 413 at the position farthest from the eccentric point abuts against the sliding seat 47 and pushes the sliding seat 47 back to the starting position. At this time, the elastic force of the third spring 45 will apply a force to the sliding seat 47 towards the side of the turntable 413. This force is perpendicular to the axial direction of the turntable 413 and can lock the turntable 413 so that it will not shake easily.

[0044] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0045] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic telescopic slide rail structure with a locking function, comprising an outer rail (1), an inner rail (2) and two ball bearings (5), wherein the inner rail (2) is slidably connected in the outer rail (1) through the two ball bearings (5), and is characterized in that, A passive locking mechanism (3) and an active locking mechanism (4) are provided at both ends of the outer rail (1). The active locking mechanism (4) is arranged outside the passive locking mechanism (3). The two passive locking mechanisms (3) are symmetrically arranged in opposite directions. Rack bars (6) are fixed on both inner side walls of the inner rail (2). The two rack bars (6) are respectively used in cooperation with the passive locking mechanism (3) on the same side to unidirectionally limit the inner rail (2) when it slides. The locking direction of the passive locking mechanism (3) is adjustable. By adjusting the locking direction of the passive locking mechanism (3), the unidirectional limit of the sliding of the inner rail (2) in different directions can be achieved, or the bidirectional limit of the inner rail (2) can be achieved. The active locking mechanism (4) is arranged at the end of the outer rail (1) and is used to lock the inner rail (2) when it slides to the end of the outer rail (1).

2. The automatic telescopic slide rail structure with a locking function according to claim 1, characterized in that, The ball bearing (5) includes balls and a bearing housing. The balls are ball-jointed in the bearing housing. The bearing housing is slidably connected to the side wall of the outer rail (1). The two side walls of the inner rail (2) are slidably attached to the balls on both sides. Arc-shaped retaining edges (7) are detachably connected to the outer edges at both ends of the inner rail (2). The two retaining edges (7) at the same end cooperate with the ends of the ball bearing (5) to clamp and limit the inner rail (2) in the outer rail (1).

3. The automatic telescopic slide rail structure with a locking function according to claim 1, characterized in that, The passive locking mechanism (3) includes a gear (31). The gear (31) is rotatably connected to the outer rail (1). The rack bar (6) is meshed and connected to one side of the gear (31). Two pawls (32) are rotatably connected to the other side of the gear (31). The two pawls (32) are symmetrically arranged. One ends of the two pawls (32) are rotatably connected to the outer rail (1) through a rotating shaft, and the other ends of the two pawls (32) are inserted into the tooth gaps of the gear (31). Fixed blocks (35) are arranged outside the two pawls (32). A first spring (34) is arranged between each of the two fixed blocks (35) and the corresponding pawl (32). A dial block (33) is arranged between the two pawls (32). The dial block (33) is in the shape of a crank with one end large and the other end small. The small head end of the dial block (33) is rotatably connected to the outer rail (1) through a transmission shaft (36).

4. The automatic telescopic slide rail structure with a locking function according to claim 3, characterized in that, One end of the transmission shaft (36) is hollowed out to form a cavity (37). A sliding column (39) is slidably connected in the cavity (37). The sliding column (39) has a regular polygon structure. A second spring (38) is also arranged in the cavity (37). Two ends of the second spring (38) are respectively connected and fixed to the sliding column (39) and the inner wall of the top of the cavity (37). One end of the sliding column (39) extends to the outside of the cavity (37). A clamping groove is formed in one side of the inner wall of the outer rail (1) corresponding to the sliding column (39). The shape of the clamping groove is adapted to the outer shape of the sliding column (39). One end of the sliding column (39) extends out of the cavity (37) and is inserted into the clamping groove.

5. The automatic telescopic slide rail structure with a locking function according to claim 4, characterized in that, A knob (310) with a pointing arrow is arranged below the sliding column (39). The knob (310) is arranged outside the outer rail (1). The knob (310) is connected and fixed to one end of the sliding column (39) through a connecting rod. A hole groove is formed in one side of the inner wall of the outer rail (1) corresponding to the connecting rod. The connecting rod is movably arranged in the hole groove.

6. The automatic telescopic slide rail structure with a locking function according to claim 1, characterized in that The active locking mechanism (4) includes a housing (41). The housing (41) is fixed in the outer rail (1). Through slots (42) are formed in the front and rear sides of the housing (41). A sliding seat (47) is arranged inside the housing (41). A guiding strip (46) is arranged on one side of the inner wall of the housing (41) corresponding to the sliding seat (47). The sliding seat (47) is slidably connected in the housing (41) through the guiding strip (46). A turntable (413) is eccentrically rotatably connected to one side of the inside of the housing (41) corresponding to the sliding seat (47) through a rotating shaft (414). One side of the turntable (413) abuts against the side wall of the sliding seat (47). An opening (43) is formed in one side of the housing (41) corresponding to the turntable (413). One end of the rotating shaft (414) rotatably penetrates through the inner wall of the outer rail (1) and a lever (415) is fixed to the end of the rotating shaft (414). The lever (415) is arranged outside the outer rail (1).

7. The automatic telescopic slide rail structure with a locking function according to claim 6, characterized in that, An installation strip (44) is arranged on one side of the inside of the housing (41) corresponding to the sliding seat (47). An installation hole (48) is formed at the center of the inner wall of one side of the sliding seat (47). A third spring (45) is fixed in the installation hole (48). One end of the third spring (45) extends outwards and is fixed to the installation strip (44).

8. The automatic telescopic slide rail structure with a locking function according to claim 7, characterized in that, On both sides of the top of the sliding seat (47), abutting blocks (410) are placed. Through slots (411) penetrating up and down are formed on the inner walls of the two abutting blocks (410). The two through slots (411) are both inclined, with one end inclined towards the center position side of the sliding seat (47). One ends of the two abutting blocks (410) respectively slide out from the corresponding through slots (42) on one side. Guide posts (49) are fixed on one side of the top of the sliding seat (47) corresponding to the two through slots (411). One end of the guide post (49) is movably inserted into the corresponding through slot (411).

9. The automatic telescopic slide rail structure with a locking function according to claim 8, wherein, One ends of the two abutting blocks (410) sliding outwards are both bent inwards to form arc-shaped abutting parts (412). Anti-slip structures are arranged on the abutting parts (412). The heights of the two abutting blocks (410) are both higher than that of the rack (6).

Images