Drawer guide rail connector with self-locking position adjusting structure

Abstract

The utility model discloses a drawer guide rail connector with a self-locking position adjusting structure, which comprises a connecting seat provided with a lock hook structure used for positioning and connecting a movable rail relatively and horizontally. The left-right adjusting seat is used for being relatively and fixedly connected with a drawer panel, the left-right adjusting seat is connected with a framework in a left-right sliding mode, and the connecting seat is connected with the framework in a front-back sliding mode; the external gear is in threaded connection with the screw, the screw is in circumferential and axial positioning connection with the connecting seat, the external gear is in axial positioning connection with the framework, the eccentric shaft drives the framework to move relative to the left-right adjusting seat, an elastic arm is formed on the connecting seat, clamping teeth are formed at one end of the elastic arm, the clamping teeth are clamped with the external gear, and an elastic plate is formed on the left-right adjusting seat. An inner tooth part is formed on the elastic plate, an outer tooth part is formed on the eccentric shaft, and the outer tooth part is connected with the inner tooth part in a meshed mode. The drawer guide rail connector has a position adjusting and self-locking function, and the position adjusting effect of a drawer is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the field of drawer guide rail connectors, in particular to a drawer guide rail connector with a self-locking position adjustment structure. Background Art

[0002] At present, drawers are connected to cabinets through guide rails for sliding. Existing drawer guide rail connectors are used to position and connect the drawers with the movable rails of the guide rails. The drawer guide rail connectors are provided with a locking hook structure, which can be hooked and positioned with the movable rails. The locking hook structure includes an unlocking handle, which can be manually turned to release the connection with the movable rails, and the user can take the drawer out of the cabinet as a whole. Some drawer guide rail connectors also have a positioning function. For example, you can refer to the "three-dimensional adjustment handle" of Chinese utility model patent publication number CN208403746U, which allows the relative position of the drawer and the movable rail to be adjusted slightly. However, in the process of daily opening and closing the drawer, vibrations are inevitable. The vibrations will cause the positioning structure to creep, resulting in a change in the relative position of the drawer and the movable rail, that is, the positioning fails. Therefore, it is necessary to improve the drawer guide rail connectors in the prior art. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a drawer guide rail connector with a self-locking adjustment structure, which is conducive to making the adjustment effect of the drawer stable and reliable.

[0004] The purpose of the utility model is achieved through the following technical solutions.

[0005] The utility model discloses a drawer guide rail connector with a self-locking adjustment structure, comprising a connecting seat, wherein the connecting seat is provided with a lock hook structure for relatively horizontal positioning and connecting a movable rail; wherein the utility model further comprises a left and right adjustment seat for relatively fixedly connecting a drawer panel, wherein the left and right adjustment seat is slidably connected to a frame, and the connecting seat is slidably connected to the frame front and back; further comprises a front and back adjustment drive assembly and a left and right adjustment drive assembly, wherein the front and back adjustment drive assembly comprises an external gear and a screw, wherein the external gear is screwed to the screw, wherein the screw is circumferentially and axially positioned and connected to the connecting seat, wherein the external gear is axially positioned and connected to the frame, wherein the left and right adjustment drive assembly comprises an eccentric shaft, wherein the eccentric shaft is rotatably connected to the left and right adjustment seats, wherein the eccentric shaft drives the frame to move relative to the left and right adjustment seats, wherein the connecting seat is formed with an elastic arm, wherein one end of the elastic arm is formed with a latching tooth, wherein the latching tooth is engaged with the external gear, wherein an elastic plate is formed on the left and right adjustment seats, wherein an inner tooth portion is formed on the elastic plate, wherein an outer tooth portion is formed on the eccentric shaft, and wherein the outer tooth portion is meshed and connected with the inner tooth portion.

[0006] Preferably, the left-right position adjustment drive assembly includes a knob, the knob protrudes from the lower side of the left-right adjustment seat, and the knob is connected to the lower end of the eccentric shaft.

[0007] Preferably, a support groove and a clamping groove are formed on the lower side of the connecting seat, the front and rear ends of the screw rod are respectively adapted to be connected with the support groove, the front end of the screw rod is integrally connected with an insert, and the insert is adapted to be inserted upward into the clamping groove.

[0008] Preferably, a longitudinal baffle is formed on the upper side of the frame, and the external gear is adapted to be arranged between the front and rear longitudinal baffles.

[0009] Preferably, the outer teeth are arranged around the entire circumference, the number of the elastic plates is set to three, and the elastic plates are evenly distributed around the circumference.

[0010] Compared with the prior art, the utility model has the following beneficial effects: by setting a left and right adjustment seat for relatively fixedly connecting the drawer panel, the left and right adjustment seat is slidably connected to the frame left and right, the connecting seat is slidably connected to the frame front and back, the screw is circumferentially and axially positioned and connected to the connecting seat, the external gear is axially positioned and connected to the frame, the eccentric shaft is rotatably connected to the left and right adjustment seat, the eccentric shaft drives the frame to move relative to the left and right adjustment seat, the connecting seat is formed with an elastic arm, one end of the elastic arm is formed with a latching tooth, the latching tooth is engaged with the external gear, an elastic plate is formed on the left and right adjustment seat, an inner tooth portion is formed on the elastic plate, an outer tooth portion is formed on the eccentric shaft, and the outer tooth portion is meshingly connected with the inner tooth portion, so that the drawer guide rail connector of the utility model has a self-locking function of adjustment, which is beneficial to making the adjustment effect of the drawer stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a top view of the three-dimensional structure of the drawer rail connector of the utility model.

[0012] Figure 2 It is a bottom-up stereoscopic structural schematic diagram of the drawer rail connector of the utility model.

[0013] Figure 3 It is a top exploded schematic diagram of the drawer rail connector of the utility model.

[0014] Figure 4 It is a bottom exploded schematic diagram of the drawer rail connector of the utility model.

[0015] Figure 5 It is a top view of the three-dimensional structure of the drawer guide rail connector of the utility model with the connecting seat removed.

[0016] Figure 6 It is a top view of the three-dimensional structure of the drawer rail connector of the utility model with the connecting seat and the frame removed.

[0017] Figure 7 It is a bottom-up stereoscopic structural schematic diagram of the drawer guide rail connector of the utility model with the left and right adjustment seats removed.

[0018] Figure 8 It is a bottom-up stereoscopic structural schematic diagram of the drawer guide rail connector of the utility model with the left and right adjustment seats and the frame removed.

[0019] Fig. 9 It is a bottom-up stereoscopic structural schematic diagram of the connecting seat of the utility model.

[0020] Fig.10 It is a top view of the three-dimensional structure of the left and right adjustment seats of the utility model.

[0021] Fig.11 It is a three-dimensional structural schematic diagram of the front and rear positioning drive assembly of the utility model.

[0022] Fig.12 It is a three-dimensional structural schematic diagram of the eccentric shaft of the utility model.

[0023] Fig.13 It is a top view of the stereoscopic structure of the framework of the utility model.

[0024] Fig.14 The utility model is a partial structural schematic diagram of the drawer guide rail connector, the guide rail and the drawer assembled from the rear perspective.

[0025] Fig.15 The utility model is a front top view of a three-dimensional partial structure of the drawer guide rail connector and the movable rail.

[0026] Explanation of reference numerals: left-right adjustment seat 1; rotating support hole 11; sliding column 12; mounting hole 13; elastic plate 14; inner tooth portion 141; slot 15; connecting seat 2; supporting slot 21; slot 22; elastic arm 23; latch tooth 231; sliding protrusion 24; sliding buckle strip 25; connecting hook 26; skeleton 3; left-right adjustment long hole 31; longitudinal baffle 32; left-right slide groove 33; front and rear slide groove 34; buckle plate 35; plug plate 36; hook tooth block 4; unlocking handle 5; front and rear adjustment drive assembly 6; external gear 61; screw 62; plug 63; left-right adjustment drive assembly 7; eccentric shaft 71; rotating shaft portion 711; eccentric protrusion 712; outer tooth portion 713; connecting shaft head 714; knob 72; locking spring 8; movable rail 99; inverted tooth piece 991; drawer panel 98. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings.

[0028] The drawer rail connector with a self-locking adjustment structure of the utility model is as follows: Figures 1 to 4As shown, it includes a connecting seat 2, which is an injection molded part. The connecting seat 2 is provided with a lock hook structure for relatively horizontally positioning the connecting movable rail 99. That is, the connecting seat 2 and the movable rail 99 are relatively positioned in the horizontal plane. Specifically, the lock hook structure includes a hook tooth block 4 and an unlocking handle 5. Figure 8 As shown, the hook tooth block 4 is slidably connected to the connecting seat 2, and the unlocking handle 5 is hinged on the connecting seat 2. A dial plate is formed at one end of the unlocking handle 5, and the dial plate is inserted into the groove of the hook tooth block 4. Therefore, the hook tooth block 4 can be moved left and right by swinging the unlocking handle 5. Figure 5 As shown, the locking hook structure includes a locking spring 8, and the elastic restoring force of the locking spring 8 can push the hook tooth block 4 outward, as shown in FIG. Fig. 9 As shown, the front end of the connection seat 2 is formed with a connection hook 26; Fig.15 As shown, the hook tooth block 4 is hooked with the inverted tooth piece 991 at the front end of the movable rail 99, and the hook tooth block 4 is pressed on the inverted tooth piece 991 by the elastic restoring force of the locking spring 8, and the connecting hook 26 is inserted into the front end of the movable rail 99 from front to back, so that the movable rail 99 is blocked by the connecting seat 2 when it moves forward, the movable rail 99 is blocked by the teeth of the hook tooth block 4 when it moves backward, the movable rail 99 is blocked by the connecting hook 26 when it moves left, and the movable rail 99 is blocked by the connecting seat 2 when it moves right, so that when the drawer is opened and closed, the drawer guide connector can move forward and backward synchronously with the movable rail 99. Fig.15 As shown, when the unlocking handle 5 is swung clockwise, the unlocking handle 5 will push the hook tooth block 4 to the left, so that the hook tooth block 4 disengages from the inverted tooth piece 991, and the drawer guide rail connector can be moved forward away from the movable rail 99, thereby allowing the drawer guide rail connector to be quickly disassembled; when the drawer guide rail connector is moved backward toward the movable rail 99, while the connecting hook 26 is inserted into the front end of the movable rail 99, the inverted tooth piece 991 pushes the hook tooth block 4 away, causing the locking spring 8 to be elastically compressed and deformed, and when the connecting seat 2 moves backward into position relative to the movable rail 99, the elastic restoring force of the locking spring 8 also pushes the hook tooth block 4 to the right to make the hook tooth block 4 engage with the inverted tooth piece 991, thereby allowing the drawer guide rail connector to quickly connect to the movable rail 99.

[0029] like Figures 1 to 4 As shown, the drawer rail connector of the present invention also includes a left and right adjustment seat 1 for relatively fixing and connecting the drawer panel 98, and the left and right adjustment seat 1 is slidably connected to a frame 3, and the frame 3 is a steel sheet metal part. For example, Fig.10 As shown, two slide posts 12 are formed on the upper side of the front end of the left and right adjustment seat 1, and the slide posts 12 are arranged in a distributed manner on the left and right sides. Fig.13 As shown, the frame 3 is formed with left and right slide grooves 33, and the left and right slide grooves 33 are extended along the left and right directions. Figure 1As shown, the slide post 12 is upwardly adapted and inserted into the corresponding left and right slide grooves 33, so that the two left and right slide grooves 33 guide the left and right adjustment seats 1, so that the left and right adjustment seats 1 can move linearly left and right relative to the frame 3, as shown in FIG. Fig.13 As shown, the front end of the frame 3 protrudes forward to form a plug plate 36, as shown in FIG. Fig.10 As shown, a slot 15 is formed at the front end of the left and right adjustment seat 1. Fig.15 As shown, the insert plate 36 is inserted into the slot 15, and the insert plate 36 can move left and right in the slot 15, thereby preventing the frame 3 from upwardly separating from the left and right adjustment seats 1. Figure 7 As shown, the connecting seat 2 is connected to the frame 3 by sliding forward and backward. Specifically, Fig.13 As shown, the frame 3 is formed with front and rear slide grooves 34, which are extended along the front and rear directions. Fig. 9 As shown, a sliding protrusion 24 is formed on the lower side of the connecting seat 2, and the sliding protrusion 24 is rectangular. Figure 7 As shown, the sliding protrusion 24 is adapted downward and inserted into the corresponding front and rear sliding grooves 34, so that the connecting seat 2 and the frame 3 move forward and backward linearly relative to each other, as shown in FIG. Fig.13 As shown, one side of the frame 3 is bent upward to form a buckle plate 35, as shown in FIG. Fig. 9 As shown, a sliding buckle strip 25 is formed on one side of the connecting seat 2. Figure 7 As shown, the buckle plate 35 buckles the sliding buckle strip 25, thereby preventing the frame 3 from being disengaged from the connecting seat 2 downward. Figure 1 and Figure 2 As shown, the drawer rail connector of the present invention further includes a front-rear adjustment drive assembly 6 and a left-right adjustment drive assembly 7. Fig.11 As shown, the front-to-back positioning drive assembly 6 includes an external gear 61 and a screw 62. The external gear 61 is threadedly connected to the screw 62. That is, an internal thread is formed at the center of the external gear 61. The axis of the screw 62 is along the front-to-back direction. Figure 8 As shown, the screw rod 62 is circumferentially and axially positioned and connected to the connection seat 2, that is, the connection seat 2 cannot move relative to the screw rod 62 along the axial direction of the screw rod 62, and the screw rod 62 cannot rotate relative to the connection seat 2. Figure 5 As shown, the outer gear 61 is axially positioned and connected to the frame 3. In other words, the frame 3 cannot move relative to the outer gear 61 along the axis of the outer gear 61. Therefore, when the outer gear 61 is rotated by hand, the outer gear 61 pushes the frame 3 to move forward and backward relative to the connecting seat 2. Figure 3 and Figure 4 As shown, the left and right adjustment drive assembly 7 includes an eccentric shaft 71, which is rotatably connected to the left and right adjustment seat 1. Specifically, the eccentric shaft 71 is formed with a rotating shaft portion 711, and the axis of the rotating shaft portion 711 is along the up and down direction, as shown in FIG. Fig.10 As shown, a rotation support hole 11 is formed at the front of the left and right adjustment seat 1. Figure 6As shown, the shaft portion 711 is adapted to be inserted into the rotating support hole 11 from top to bottom, and the eccentric shaft 71 drives the frame 3 to move relative to the left and right adjustment seat 1. Specifically, an eccentric boss 712 is formed at the upper end of the eccentric shaft 71, and the eccentric boss 712 and the shaft portion 711 are eccentrically arranged with each other, as shown in FIG. Fig.13 As shown, the frame 3 is formed with a left and right adjustment slot 31, and the left and right adjustment slot 31 is extended along the front and rear direction. Figure 1 As shown, the eccentric boss 712 is inserted upward into the left-right adjustment slot 31, and the width of the left-right adjustment slot 31 in the left-right direction is adapted to the diameter of the eccentric boss 712, so that when the shaft portion 711 is rotated, the eccentric boss 712 can push the frame 3 to move left and right relative to the left-right adjustment seat 1. Fig. 9 As shown, the connection seat 2 is formed with an elastic arm 23, one end of the elastic arm 23 is formed with a latch 231, the number of the latch 231 can be set to one, and the other end of the elastic arm 23 is integrally connected with the connection seat 2, such as Figure 1 As shown, the latching teeth 231 latch the external gear 61, that is, the latching teeth 231 are inserted into the tooth grooves of the external gear 61. Fig.10 As shown, an elastic plate 14 is formed on the left and right adjustment seat 1, and the lower end of the elastic plate 14 is integrally connected with the left and right adjustment seat 1, and an inner tooth portion 141 is formed on the elastic plate 14. Fig.12 As shown, the eccentric shaft 71 is formed with an external tooth portion 713. Figure 6 As shown, the outer toothing 713 is meshingly connected to the inner toothing 141 .

[0030] The following briefly describes the adjustment working principle of the drawer rail connector of the utility model: Fig.10 As shown, the front end surface of the left and right adjustment seat 1 is formed with a mounting hole 13. Fig.14 As shown, the front end surface of the left-right adjustment seat 1 is attached to the rear side of the drawer panel 98 (i.e., the front side panel of the drawer), and the self-tapping screws are obliquely passed through the mounting holes 13 and screwed to the drawer panel 98, so as to relatively fix the left-right adjustment seat 1 and the drawer panel 98. As described above, the connecting seat 2 is positioned and connected to the movable rail 99 through the above-mentioned locking hook structure. Figure 2 and Fig.14As shown, the outer gear 61 partially protrudes downward from the left and right adjustment seat 1. The outer gear 61 is moved by fingers to rotate, so that the frame 3, the left and right adjustment seat 1 and the drawer can be moved forward and backward together for adjustment. In this process, the fingers need to overcome the circumferential obstruction of the latch tooth 231 to the outer gear 61, that is, when the outer gear 61 rotates, the latch tooth 231 is squeezed open, so that the elastic arm 23 is elastically bent and deformed. When the latch tooth 231 moves relatively to the tooth groove of the adjacent outer gear 61, the latch tooth 231 is automatically inserted into the tooth groove of the adjacent outer gear 61 through the elastic recovery of the elastic arm 23. When the adjustment is completed, the latch tooth 231 is engaged with the outer gear 61, so that the outer gear 61 is prevented from rotating due to vibration, thereby avoiding adjustment failure. When the eccentric shaft 71 is rotated, the left and right adjustment seats 1 and the drawers can be driven to move left and right for adjustment. During this period, the user needs to overcome the circumferential obstruction of the inner tooth portion 141 of the elastic plate 14 to the outer tooth portion 713 of the eccentric shaft 71. Relatively speaking, the outer tooth portion 713 pushes the inner tooth portion 141 away, causing the elastic plate 14 to elastically bend and deform outward (along the radius of the shaft portion 711). When the adjustment is completed, the inner tooth portion 141 is elastically reset by the elastic plate 14 and moves radially inward to resume meshing with the outer tooth portion 713, thereby preventing the eccentric shaft 71 from rotating due to vibration, thereby avoiding adjustment failure. It can be seen from the above that the drawer guide rail connector of the utility model has a self-locking function for adjustment, which is conducive to making the adjustment effect of the drawer stable and reliable.

[0031] Furthermore, if Figure 3 and Figure 4 As shown, the left and right position adjustment drive assembly 7 includes a knob 72. Figure 2 As shown, the knob 72 protrudes from the lower side of the left and right adjustment seat 1, and the knob 72 is arranged in an inverted manner. The knob 72 is connected to the lower end of the eccentric shaft 71. Specifically, as shown in FIG. Fig.12 As shown, the lower end of the eccentric shaft 71 is formed with a hexagonal shaft head. Figure 3 As shown, a hexagonal hole is formed in the upper end of the knob 72, and the hexagonal shaft head is adapted to be inserted into the hexagonal hole, and an inner convex buckle is formed in the above-mentioned hexagonal hole, and the above-mentioned inner convex buckle is connected to the groove on the above-mentioned hexagonal shaft head to prevent the knob 72 from disengaging downward from the eccentric shaft 71. The knob 72 and the rotating shaft part 711 are coaxially arranged. When the knob 72 is rotated by hand, the drawer can be adjusted left and right, which is convenient for users to operate.

[0032] Furthermore, if Fig. 9 As shown, a support groove 21 and a clamping groove 22 are formed on the lower side of the connecting seat 2. Figure 8 As shown, the front and rear ends of the screw rod 62 are respectively adapted to be connected with the support groove 21, so that the screw rod 62 is radially positioned, as shown in FIG. Fig.11 As shown, the front end of the screw rod 62 is integrally connected with an insert 63. Figure 8As shown, the insert 63 is adapted to be inserted upward into the slot 22, so that the screw 62 and the connecting seat 2 are axially and circumferentially positioned, as shown in FIG. Figure 7 As shown, the front part of the frame 3 covers the lower side of the connecting seat 2, and the frame 3 blocks the insert 63 from moving downward, thereby preventing the screw 62 from disengaging from the supporting groove 21 downward. The above-mentioned structural setting is conducive to the stable installation of the screw 62.

[0033] Furthermore, if Fig.13 As shown, a longitudinal baffle 32 is formed on the upper side of the frame 3. Figure 5 As shown, the outer gear 61 is adapted to be disposed between the front and rear longitudinal baffles 32 , so when the outer gear 61 is rotated, the outer gear 61 moves forward or backward and directly drives the frame 3 to avoid a void.

[0034] Furthermore, if Fig.12 As shown, the outer tooth portion 713 is arranged around the entire circumference, that is, the tooth profiles of the outer tooth portion 713 are evenly spaced around the entire circumference, such as Fig.10 As shown, the number of elastic plates 14 is set to three, and the elastic plates 14 are evenly distributed circumferentially, which is beneficial to the force balance of the eccentric shaft 71, and is beneficial to increasing the rotational resistance of the eccentric shaft 71, thereby avoiding failure of left-right adjustment of the drawer; on the premise of providing sufficient rotational resistance to the eccentric shaft 71, the circumferential width of the elastic plate 14 can be set to be smaller to reduce the rigidity of the elastic plate 14, which is beneficial to the flexible elastic bending and deformation of the elastic plate 14.

[0035] By arranging the front part of the frame 3 between the connecting seat 2 and the left and right adjustment seats 1, the structural strength of the drawer rail connector of the utility model can be increased.

Claims

1. A drawer rail connector with a self-locking adjustment structure, comprising a connecting seat (2), wherein the connecting seat (2) is provided with a locking hook structure for relatively horizontally positioning the connecting movable rail (99), characterized in that: The drawer panel (98) further comprises a left-right adjustment seat (1) for relatively fixedly connecting the drawer panel (98), the left-right adjustment seat (1) being slidably connected to the frame (3) in the left-right direction, and the connecting seat (2) being slidably connected to the frame (3) in the front-back direction; and a front-back adjustment drive assembly (6) and a left-right adjustment drive assembly (7), the front-back adjustment drive assembly (6) comprising an external gear (61) and a screw rod (62), the external gear (61) being screwed to the screw rod (62), the screw rod (62) being circumferentially and axially connected to the connecting seat (2), the external gear (61) being axially connected to the frame (3), and the left-right adjustment drive assembly (7) comprising an eccentric gear (61) and a screw rod (62). A central shaft (71), the eccentric shaft (71) is rotatably connected to the left and right adjustment seat (1), the eccentric shaft (71) drives the frame (3) to move relative to the left and right adjustment seat (1), the connection seat (2) is formed with an elastic arm (23), one end of the elastic arm (23) is formed with a latching tooth (231), the latching tooth (231) is engaged with the external gear (61), an elastic plate (14) is formed on the left and right adjustment seat (1), an internal tooth portion (141) is formed on the elastic plate (14), an external tooth portion (713) is formed on the eccentric shaft (71), and the external tooth portion (713) is meshingly connected with the internal tooth portion (141).

2. The drawer rail connector with a self-locking adjustment structure according to claim 1, characterized in that: The left-right position adjustment drive assembly (7) comprises a knob (72), the knob (72) protruding from the lower side of the left-right adjustment seat (1), and the knob (72) connected to the lower end of the eccentric shaft (71).

3. The drawer rail connector with a self-locking adjustment structure according to claim 1, characterized in that: A support groove (21) and a clamping groove (22) are formed on the lower side of the connection seat (2); the front and rear ends of the screw rod (62) are respectively adapted to be connected to the support groove (21); the front end of the screw rod (62) is integrally connected to an inserting piece (63); the inserting piece (63) is adapted to be inserted upward into the clamping groove (22).

4. The drawer rail connector with a self-locking adjustment structure according to claim 3, characterized in that: A longitudinal baffle (32) is formed on the upper side of the frame (3), and the external gear (61) is adapted to be arranged between the front and rear longitudinal baffles (32).

5. The drawer rail connector with a self-locking adjustment structure according to claim 1, characterized in that: The outer tooth portion (713) is arranged around the entire circumference, the number of the elastic plates (14) is set to three, and the elastic plates (14) are evenly distributed in the circumferential direction.

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