Drawer guide rail connector with shifting pin unlocking structure

Abstract

The utility model discloses a drawer guide rail connector with a shifting pin unlocking structure, which comprises a spring bolt and a connecting seat, a connecting insertion hook is formed at the front end of the connecting seat, and a tooth correcting part is formed on one side of the spring bolt; the unlocking handle comprises a plate body, a cylindrical shifting pin is formed at the front end part of the plate body, a handle part is formed at the rear end of the plate body, a hinge hole is formed in the plate body, the cylindrical shifting pin is parallel to the hinge hole, a hinge column is formed at the front end part of the connecting seat and is connected with the hinge hole in a matched manner, and a linear guide groove is formed in the connecting seat; the spring bolt is arranged in the linear guide groove in a left-right sliding mode, a sliding connection long hole extending in the front-back direction is formed in the spring bolt, and the cylindrical shifting pin is arranged in the sliding connection long hole. The locking device further comprises a locking spring used for pushing the positive tooth part to the reverse tooth part, one end of the locking spring is connected with the connecting base, and the other corresponding end of the locking spring is connected with the spring bolt. The drawer guide rail connector is beneficial for enabling the drawer guide rail connector to be unlocked stably and flexibly.

Description

Technical Field

[0001] This utility model relates to the field of drawer slide connectors, specifically to a drawer slide connector with a pin unlocking structure. Background Technology

[0002] Currently, drawers are slidably connected to the cabinet via guide rails. Existing drawer rail connectors are used to position and connect the drawer to the movable rail of the guide rail. These connectors feature a locking hook structure that engages with the movable rail for positioning. An example of a drawer rail connector can be found in Chinese Utility Model Patent Publication No. CN218500285U, entitled "A Quick-Connect Assembly Suitable for Concealed Guide Rails," which includes a movable rotating component and a movable locking component. The locking component has a groove, approximately a V-shaped groove structure. The movable rotating component moves the groove, causing the locking component to disengage from the guide rail. The locking component can be activated by a spring. The elastic restoring force extends and resets the mechanism, but because the inner wall of the slot forms an angle with the guiding direction of the movable locking part, when the movable rotating part is swung by hand, the movable rotating part exerts a large component force on the movable locking part perpendicular to the sliding direction of the movable locking part. This causes significant mutual pressure between the movable locking part and the inner wall of the guide groove, thereby significantly increasing the sliding resistance of the movable locking part. This leads to jamming when the movable locking part is unlocked. After a period of use, once the movable locking part and the inner wall of the guide groove are damaged, the above-mentioned jamming will occur more frequently. Therefore, it is necessary to improve the existing drawer slide connector. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a drawer slide connector with a pin unlocking structure, which helps to make the drawer slide connector unlocking stable and flexible.

[0004] The objective of this utility model is achieved through the following technical solution.

[0005] The utility model discloses a drawer guide rail connector with the unlocking structure of the latch pin, including the lock tongue and the connecting seat for connecting the drawer, the front end of connecting seat forms the connecting hook for inserting into the front end portion of movable rail back, the one side of lock tongue forms the spur gear for the hooking inverted tooth piece on movable rail, wherein, still include the unlocking handle, the unlocking handle includes the board body, the front end portion on the board body forms the cylindrical latch pin, the rear end of board body forms the handle part, the hinging hole is formed on the board body, the axis of hinging hole extends and is arranged along the up and down direction, the hinging hole is located between cylindrical latch pin and handle part, cylindrical latch pin is parallel with hinging hole, the front end portion of connecting seat forms the hinging column, the hinging column is connected with the hinging hole, the connecting seat forms the linear guide groove, lock tongue left and right sliding is located in linear guide groove, the sliding long hole that extends and is arranged along the front and back direction is formed on lock tongue, cylindrical latch pin is located in sliding long hole, still include the lock spring for pushing the spur gear to inverted tooth piece, one end of lock spring is connected with connecting seat, and the other end corresponding of lock spring is connected with lock tongue.

[0006] Preferably, the lock tongue is formed with a guide groove corresponding to the sliding long hole in the left-right direction, and the connecting seat is formed with a sliding key relatively sliding in the guide groove.

[0007] Preferably, the connecting seat is formed with a limiting groove corresponding to the hinging column, and the board body is arranged in the limiting groove.

[0008] Preferably, the drawer guide rail connector further comprises a left-right position adjusting driving member and a left-right adjusting seat for relatively fixedly connecting a drawer panel, the connecting seat is left and right slidingly arranged on the upper side of the left-right adjusting seat, the left-right adjusting seat is formed with an axial positioning through groove, the left-right position adjusting driving member comprises a gear and a screw rod, the gear and the screw rod are coaxially connected into an integrated body, the screw rod is screw-connected with the connecting seat, the gear is rotationally connected with the left-right adjusting seat, the gear is adapted to be arranged in the axial positioning through groove, and the gear protrudes downward from the left-right adjusting seat.

[0009] Preferably, the lower side of the connecting seat is formed with a threaded groove, the left-right position adjusting driving member is provided with a rotating shaft, the gear and the screw rod are coaxially arranged on the rotating shaft, the left and right ends of the rotating shaft are rotationally connected with the left-right adjusting seat, the screw rod is screw-connected with the threaded groove, and the screw rod can be radially arranged in the threaded groove.

[0010] Compared with the prior art, the advantages of this utility model are as follows: by setting the unlocking handle including a plate, a cylindrical pin is formed on the front end of the plate, a handle is formed on the rear end of the plate, a hinge hole is formed on the plate, the cylindrical pin is parallel to the hinge hole, a hinge post is formed on the front end of the connecting seat, the hinge post is adapted to the hinge hole, the connecting seat is formed with a straight guide groove, the lock tongue is slidably disposed in the straight guide groove, a sliding elongated hole extending in the front-back direction is formed on the lock tongue, and the cylindrical pin is disposed in the sliding elongated hole; it also includes a locking spring for pushing the positive teeth towards the negative teeth, which is beneficial to make the lock tongue slide more flexibly when unlocking, thus making the drawer guide rail connector unlocking stably and flexibly. Attached Figure Description

[0011] Figure 1 This is a top-view perspective view of the drawer slide connector of this utility model.

[0012] Figure 2 This is a bottom-view perspective view of the drawer slide connector of this utility model.

[0013] Figure 3 This is an exploded view of the drawer slide connector of this utility model.

[0014] Figure 4 This is a bottom-view perspective view of the drawer slide connector of this utility model with the left and right adjustment seats removed.

[0015] Figure 5 This is a top-view three-dimensional structural diagram of the left and right adjustment seat of this utility model.

[0016] Figure 6 This is a top-view three-dimensional structural diagram of the connector of this utility model.

[0017] Figure 7 This is a bottom-view perspective view of the connecting seat of this utility model.

[0018] Figure 8 This is a three-dimensional structural diagram of the unlocking handle of this utility model.

[0019] Figure 9 This is a top-view three-dimensional structural diagram of the locking tongue of this utility model.

[0020] Figure 10 This is a bottom-view three-dimensional structural diagram of the drawer guide rail connector of this utility model, assembled with the guide rail and drawer.

[0021] Labeling: Left and right adjustment seat 1; Axial positioning through groove 101; Rotary support groove 102; Rotary support hole 103; Spring clip 104; Rear slide bar 105; Middle slide bar 106; Buckle block 1061; Front slide bar 107; Connecting seat 2; Threaded groove 21; Hinge column 22; Elastic locking arm 23; Limiting groove 24; Mounting notch 25; Connecting hook 26; Linear guide groove 27; Slide key 271; Front slide groove 28; Middle slide bar 29 slot; 291 clearance notch; 290 rear slide rail; 4 latch; 401 sliding joint elongated hole; 4011 inner wall of long side; 402 positive teeth; 403 spring receiving groove; 404 guide groove; 5 unlocking handle; 50 plate; 51 hinge hole; 52 cylindrical pin; 53 handle; 6 left and right adjustment drive; 60 rotating shaft; 61 gear; 62 screw; 8 locking spring; 99 sliding rail; 991 reverse teeth; 98 drawer panel. Detailed Implementation

[0022] The present invention will now be further described with reference to the accompanying drawings.

[0023] The drawer slide connector of this utility model with a latch unlocking structure, such as Figures 1 to 4 As shown, it includes a latch 4 and a connecting seat 2 for connecting the drawer. In other words, under normal use, the connecting seat 2 is positioned relative to the drawer. The front end of the connecting seat 2 has a connecting hook 26 for inserting rearward into the front end of the sliding rail 99. One side of the latch 4 has a positive tooth portion 402 for engaging the reverse tooth 991 on the sliding rail 99. Thus, the positive tooth portion 402 extends obliquely forward, while the reverse tooth 991 extends obliquely backward; that is, the positive tooth portion 402 is relative to the reverse tooth 991. Figures 1 to 4 As shown, the drawer slide connector of this utility model also includes an unlocking handle 5, as... Figure 8 As shown, the unlocking handle 5 includes a plate 50, a cylindrical pin 52 formed on the front end of the plate 50, a handle 53 formed at the rear end of the plate 50, and a hinge hole 51 formed on the plate 50. The axis of the hinge hole 51 extends in the vertical direction and is located between the cylindrical pin 52 and the handle 53. The cylindrical pin 52 is parallel to the hinge hole 51. Figure 6 As shown, a hinge post 22 is formed at the front end of the connecting seat 2, as... Figure 1 As shown, the hinge post 22 is fitted and connected to the hinge hole 51, so the unlocking handle 5 can swing (horizontally) about the axis of the hinge post 22. Figure 7 As shown, the connecting seat 2 has a linear guide groove 27, and the locking tongue 4 slides left and right within the linear guide groove 27. In other words, the linear guide groove 27 provides a linear guide for the locking tongue 4. Specifically, the linear guide groove 27 includes a front guide wall and a rear guide wall. The front of the locking tongue 4 abuts against the front guide wall, the rear of the locking tongue 4 abuts against the rear guide wall, and the top of the locking tongue 4 abuts against the bottom of the linear guide groove 27.Figure 9 As shown, the lock tongue 4 is formed with a sliding long hole 401 extending along the front-rear direction, and then the left and right sides of the sliding long hole 401 are respectively formed with a long side inner wall 4011 perpendicular to the sliding direction of the lock tongue 4, and Figure 4 As shown, the cylindrical push pin 52 is arranged in the sliding long hole 401; as shown, Figure 4 As shown, the drawer guide rail connector further comprises an upper locking spring 8 for pushing the spur gear part 402 to the ratchet part 991 (it is needed to be noticed that only Figure 4 the upper locking spring 8 is schematically drawn), that is to say, the direction of the elastic restoring force of the upper locking spring 8 is along the left-right direction, one end of the upper locking spring 8 is connected to the connecting seat 2, and the other end of the upper locking spring 8 is connected to the lock tongue 4, and specifically, the lock tongue 4 is formed with a spring accommodating groove 403, and Figure 4 As shown, the other end of the upper locking spring 8 is arranged in the spring accommodating groove 403.

[0024] As shown, Figure 10 In the normal use state of the drawer, the drawer guide rail connector is abutted to the bottom of the drawer (it is needed to be noticed that, Figure 10 only the movable rail 99 corresponding to the right part of the drawer and the drawer guide rail connector are drawn), the left side of the movable rail 99 of the guide rail is provided with the ratchet part 991, the ratchet part 991 is meshed and connected with the spur gear part 402, the connecting hook 26 is inserted into the front end part of the movable rail 99, and then the movable rail 99 is blocked by the spur gear part 402 when moving backward relative to the drawer, the movable rail 99 is blocked by the connecting seat 2 when moving forward relative to the drawer, and the movable rail 99 is blocked by the connecting hook 26 when moving left and right relative to the drawer. When it is needed to separate the drawer from the movable rail 99, in the visual direction of Figure 10 , the handle 53 is pushed rightwards, and the cylindrical push pin 52 is shifted leftwards, as shown, Figure 4 As shown, the cylindrical push pin 52 is arranged in the sliding long hole 401, and the sliding long hole 401 extends along the front-rear direction, as shown, Figure 4As shown, specifically, the outer cylindrical surface of the cylindrical plunger 52 abuts against the inner wall 4011 of the long side, and the cylindrical plunger 52 can slide in the long hole 401 relative to the front and back, so that the cylindrical plunger 52 generates a relatively large leftward (perpendicular to the inner wall 4011 of the long side) pushing force and a relatively small backward component force (sliding friction) on the inner wall 4011 of the long side. Since the pushing force of the cylindrical plunger 52 on the locking tongue 4 is mainly parallel to the sliding direction of the locking tongue 4, the friction between the locking tongue 4 and the straight guide groove 27 is relatively small (compared with the prior art), so that the locking tongue 4 can slide more flexibly during unlocking, avoiding the locking tongue 4 from being stuck, and being conducive to the stable unlocking function of the drawer guide connector. When the locking tongue 4 is displaced to the left, the locking tongue 4 is away from the inverted tooth member 991 (i.e., the unlocking is completed), and the drawer is pulled forward to make the connecting hook 26 pull away from the movable rail 99, so that the drawer is separated from the movable rail 99, and the elastic restoring force of the locking spring 8 pushes the locking tongue 4 to the right, the locking tongue 4 moves to the right, the inner wall 4011 of the long side pushes the cylindrical plunger 52, and the unlocking handle 5 is reset. If the unlocking handle 5 fails to reset accidentally, the handle part 53 can be pushed to the left by hand, and the cylindrical plunger 52 actively drives the locking tongue 4 to move to the right to reset. In other words, through the connection between the cylindrical plunger 52 and the long hole 401, the unlocking handle 5 and the locking tongue 4 can be passively reset or actively reset. When the drawer is assembled and connected with the movable rail 99, the locking tongue 4 is reset to protrude and can be inserted and engaged with the inverted tooth member 991.

[0025] Further, as shown in Figure 9 The locking tongue 4 is formed with a guide groove 404, which corresponds to the long hole 401 in the left-right direction, that is, the guide groove 404 points to the middle of the long hole 401 in the front-back direction, as shown in Figure 7 The connecting seat 2 is formed with a sliding key 271, which is specifically formed at the bottom of the straight guide groove 27, that is, the sliding key 271 is located on the lower side of the connecting seat 2, as shown in Figure 1 The sliding key 271 is relatively slidably arranged in the guide groove 404, so that the rigidity of the relative straight sliding of the locking tongue 4 and the connecting seat 2 is enhanced, further avoiding the locking tongue 4 from being stuck during sliding.

[0026] Further, as shown in Figure 6 The connecting seat 2 is formed with a limiting groove 24, which corresponds to the hinge column 22, and the hinge column 22 is specifically located on the rear side of the limiting groove 24, as shown in Figure 1 The plate body 50 is arranged in the limiting groove 24, that is, the swing amplitude of the plate body 50 around the axis of the hinge column 22 is limited by the limiting groove 24. As shown in Figure 1 The front end of the plate body 50 abuts against the lower side of the connecting seat 2, as shown in Figure 6As shown, the front end of the limiting groove 24 is formed with a mounting gap 25, during assembly, the cylindrical push pin 52 can pass through the mounting gap 25, so that in the swing range of the plate body 50, only when the plate body 50 is aligned with the mounting gap 25, the front end of the plate body 50 can not be supported by the abutting of the connecting seat 2.

[0027] Further, as shown, Figures 1 to 3 The drawer guide rail connector of the utility model further comprises left-right position adjusting driving members 6 and left-right adjusting seats 1 for relatively fixedly connecting drawer panels 98, specifically, the front end of each left-right adjusting seat 1 is formed with a screw mounting hole, as shown, Figure 10 So that the left-right adjusting seat 1 can be connected with the bottom of the drawer and the drawer panel 98 through screws; as shown, Figures 1 to 3 The connecting seat 2 is slidably arranged on the upper side of the left-right adjusting seat 1, specifically, as shown, Figure 5 The upper side of the left-right adjusting seat 1 is formed with a rear sliding strip 105, a middle sliding strip 106 and a front sliding strip 107, that is, the middle sliding strip 106 is located at the middle position of the left-right adjusting seat 1 in the front-rear direction, as shown, Figure 7 The lower side of the connecting seat 2 is formed with a front sliding groove 28, a middle sliding groove 29 and a rear sliding groove 290, as shown, Figure 1 The front sliding strip 107 is slidably connected to the front sliding groove 28, the middle sliding strip 106 is slidably connected to the middle sliding groove 29, and the rear sliding strip 105 is slidably connected to the rear sliding groove 290, as shown, Figure 5 The upper side of the middle sliding strip 106 is formed with a buckling block 1061, as shown, Figure 1 The buckling block 1061 is slidably buckled to the upper side of the edge portion of the middle sliding groove 29, so as to avoid the left-right adjusting seat 1 from being separated downward from the connecting seat 2, as shown, Figure 7 The edge of the middle sliding groove 29 is formed with an avoiding gap 291, during assembly, the buckling block 1061 can pass through the avoiding gap 291. As shown, Figure 1 The left-right adjusting seat 1 is formed with an axial positioning through groove 101, as shown, Figure 3 The left-right position adjusting driving members 6 comprise a gear 61 and a screw rod 62, the gear 61 and the screw rod 62 are coaxially connected into one body, as shown, Figure 4 The screw rod 62 is screwed with the connecting seat 2, and the gear 61 is rotationally connected with the left-right adjusting seat 1, as shown, Figure 2 The gear 61 is adaptively arranged in the axial positioning through groove 101, that is, the gear 61 cannot move relative to the left-right adjusting seat 1 along the axial direction of the gear 61, the gear 61 protrudes downward from the left-right adjusting seat 1, so that the gear 61 is rotated by hand, the gear 61 drives the screw rod 62 to synchronously rotate, since the gear 61 is adaptively arranged in the axial positioning through groove 101, so as to make the left-right adjusting seat 1 move and adjust the position along the axial direction of the screw rod 62, that is, make the left-right adjusting seat 1 adjust the position relative to the connecting seat 2, so as to make the drawer adjust the position relative to the movable rail 99, as shown,Figure 6 and Figure 7 As shown in Figure 1 , the elastic locking arm 23 is formed with a clamping tooth at its free end, which is clamped in the tooth groove of the gear 61, so as to avoid the gear 61 from creeping rotation and thus invalidating the adjustment, when the gear 61 is forced to rotate by hand, the teeth of the gear 61 push the clamping tooth away, and the elastic locking arm 23 is elastically swung away, so that the clamping tooth can be separated from the tooth groove, and the adjustment is completed, and the connecting seat 2 is positioned relative to the left and right adjusting seats 1, and since the left and right adjusting seats 1 are connected to the drawer by screws, the connecting seat 2 is positioned relative to the drawer.

[0028] Further, as shown in Figure 7 , the lower side of the connecting seat 2 is formed with a threaded groove 21 (i.e. a recess with internal threads), as shown in Figure 3 , the left and right adjusting drive 6 is provided with a rotating shaft 60, and the gear 61 and the screw rod 62 are coaxially formed on the rotating shaft 60, and the left and right ends of the rotating shaft 60 are rotatably connected to the left and right adjusting seats 1, specifically, as shown in Figure 5 , the right side of the axial positioning through slot 101 is formed with a rotating support hole 103, and the left side of the axial positioning through slot 101 is formed with a rotating support recess 102, and the upper side of the rotating support recess 102 is further formed with a spring clamping piece 104, during installation of the left and right adjusting drive 6, the right end of the rotating shaft 60 is first inserted obliquely into the rotating support hole 103, and then the left end of the rotating shaft 60 is swung downward, the left end surface of the rotating shaft 60 pushes the spring clamping piece 104 away, so that the left end of the rotating shaft 60 can enter the rotating support recess 102 downward, at this time the spring clamping piece 104 is elastically reset, so that the spring clamping piece 104 abuts against the upper side of the left end of the rotating shaft 60, thereby avoiding the left and right adjusting drive 6 from being separated upward from the left and right adjusting seats 1, as shown in Figure 4 , the screw rod 62 is screwed with the threaded groove 21, and the screw rod 62 can be radially fitted into the threaded groove 21, in other words, the left and right adjusting drive 6 is first installed to the left and right adjusting seats 1, and then the connecting seat 2 is covered downward on the left and right adjusting seats 1, so that the screw rod 62 enters the threaded groove 21 along the diameter direction of the screw rod 62, that is to say, the threaded groove 21 includes half (or slightly less than half) internal threads, and the structure of the threaded groove 21 is equivalent to cutting a cylindrical structure along the central axis by half, by providing the threaded groove 21, the screw rod 62 can be screwed with the connecting seat 2 by simple linear movement, thereby facilitating the assembly of the drawer guide connector.

Claims

1. A drawer guide rail connector having a latch-unlocking structure, comprising a latch (4) and a connecting seat (2) for connecting a drawer, a front end of the connecting seat (2) being formed with a connecting hook (26) for being inserted into a front end portion of a moving rail (99) rearwardly, and one side of the latch (4) being formed with a spur gear portion (402) for hooking a reverse tooth member (991) on the moving rail (99), characterized in that: Also include the unlocking handle (5), the unlocking handle (5) includes the plate body (50), the front end of the plate body (50) is formed with a cylindrical pin (52), the rear end of the plate body (50) is formed with a handle (53), the plate body (50) is formed with a hinge hole (51), the axis of the hinge hole (51) extends along the up and down direction, the hinge hole (51) is arranged between the cylindrical pin (52) and the handle (53), the cylindrical pin (52) is parallel to the hinge hole (51), the front end of the connecting seat (2) is formed with a hinge column (22), the hinge column (22) is connected with the hinge hole (51), the connecting seat (2) is formed with a straight guide slot (27), the lock tongue (4) is arranged in the straight guide slot (27), the lock tongue (4) is formed with a sliding long hole (401) extending along the front and back direction, the cylindrical pin (52) is arranged in the sliding long hole (401); also include the upper locking spring (8) for pushing the spur gear (402) to the reverse tooth part (991), one end of the upper locking spring (8) is connected with the connecting seat (2), the other end of the upper locking spring (8) is connected with the lock tongue (4).

2. The drawer guide connector having a pull-pin unlocking structure according to claim 1, characterized by: The lock tongue (4) is formed with a guide groove (404), the guide groove (404) corresponds to the sliding long hole (401) in the left and right direction, the connecting seat (2) is formed with a sliding key (271), the sliding key (271) is arranged in the guide groove (404) relative to the sliding.

3. The drawer guide connector having a pull-pin unlocking structure according to claim 1 or 2, characterized in that: The connecting seat (2) is formed with a limiting groove (24), the limiting groove (24) corresponds to the hinge column (22), the plate body (50) is arranged in the limiting groove (24).

4. The drawer guide connector having a pull-pin unlocking structure according to claim 1 or 2, characterized by: Also include the left and right adjusting drive (6) and the left and right adjusting seat (1) for relatively fixedly connecting the drawer panel (98), the connecting seat (2) is arranged on the upper side of the left and right adjusting seat (1), the left and right adjusting seat (1) is formed with an axial positioning through slot (101), the left and right adjusting drive (6) includes a gear (61) and a screw rod (62), the gear (61) and the screw rod (62) are coaxially connected into an integrated body, the screw rod (62) is screwed with the connecting seat (2), the gear (61) is rotationally connected with the left and right adjusting seat (1), the gear (61) is arranged in the axial positioning through slot (101), and the gear (61) protrudes downward from the left and right adjusting seat (1).

5. The drawer guide connector having a pull-pin unlocking structure according to claim 4, characterized by: The lower side of the connecting seat (2) is formed with a threaded groove (21), the left and right adjusting drive (6) is provided with a rotating shaft (60), the gear (61) and the screw rod (62) are coaxially arranged on the rotating shaft (60), the left and right ends of the rotating shaft (60) are rotationally connected with the left and right adjusting seat (1), the screw rod (62) is screwed with the threaded groove (21), and the screw rod (62) can be radially arranged in the threaded groove (21).

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