Shelf push-pull assembly convenient to lock and shelf assembly thereof

Abstract

The shelf push-pull assembly convenient to lock comprises a guide rail, a sliding block which is used for supporting a shelf and can slide in the length direction of the guide rail is arranged on the guide rail, and a buckling part which can be buckled on the shelf so as to drive the sliding block when the shelf is pushed and pulled is arranged on the sliding block. The tail end of the guide rail is provided with a first positioning device capable of preventing the sliding block from moving towards the rear side, the guide rail is provided with a second positioning device capable of preventing the sliding block from moving towards the front side on the front side of the first positioning device, the front end of the guide rail is provided with a locking head, and the locking head is provided with a guide pulley capable of supporting the shelf and guiding the shelf in a sliding mode. And a locking piece capable of locking the shelf to prevent the shelf from being pulled out when the shelf is pushed back into the refrigerator is movably arranged on the locking head. When the shelf is pushed back to the guide rails, the locking pieces on the locking heads are locked, the locking heads have multiple functions, the shelf is directly locked, the structure is simple, and use is convenient.

Description

[Technical field]

[0001] The utility model relates to a shelf push-pull assembly which facilitates the push-pull installation of shelves in a freezer, and a shelf assembly using the shelf push-pull assembly. [Background technology]

[0002] Freezers (such as freezers, refrigerators, etc.) are used to place items by setting shelves. For ease of use, the shelves are designed to be pull-out, which is generally achieved through guide rails. The guide rails slide and guide when the shelves are pushed and pulled inward and outward. The existing guide rail structure, such as patent No. 201821435586.4, is named a ball-guided pull-out replenishment shelf, which adopts a first guide slider and a second guide slider to achieve sliding guidance. The shelf is buckled on the first guide slider. When the shelf is pushed inward or pulled outward, the first guide slider is driven to slide relatively inward and outward on the second guide slider. The shelf is supported only by the first guide slider, which requires a longer first guide slider. The positioning of the shelf when pulled out and pushed back is achieved by a mechanism arranged on the first guide slider and the second guide slider, which locks or unlocks the first guide slider and the second guide slider through a spring piece. This method is not only inconvenient to install, but also not firmly locked. [Contents of the utility model]

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a layer shelf push-pull assembly with a simple structure and convenient locking. The utility model also provides a layer shelf assembly that is convenient to lock.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A shelf push-pull assembly that is easy to lock, characterized in that it includes a guide rail, the guide rail is provided with a slider for supporting the shelf and capable of sliding along the length direction of the guide rail, the slider is provided with a buckling portion that can be buckled on the shelf so that the slider can be driven when the shelf is pushed or pulled, the tail end of the guide rail is provided with a first positioning device that can block the slider from moving backward, the guide rail is provided with a second positioning device on the front side of the first positioning device that can block the slider from moving forward, the front end of the guide rail is provided with a locking head, the locking head is provided with a guide pulley that can support the shelf and guide the shelf to slide, and the locking head is movably provided with a locking piece that can lock the shelf to prevent the shelf from being pulled out when the shelf is pushed back into the refrigerator.

[0006] The above-mentioned easy-to-lock shelf push-pull assembly is characterized in that: the locking head is provided with a stopper that can lock the locking head when the locking piece moves to the shelf locking position.

[0007] The above-mentioned shelf push-pull assembly that is easy to lock is characterized in that the stopper is movably arranged on the locking head, and the stopper is provided with an unlocking member that can drive the stopper to unlock the locking member.

[0008] The shelf push-pull assembly that is easy to lock as described above is characterized in that: the locking piece is hinged to the locking head through a hinge shaft, a socket for the stop piece to pass through is provided in the middle of the locking piece, a slot for the stop piece to be inserted into when the locking piece is in a locked state is provided on the locking head, an elastic piece is provided in the socket to press on the stop piece, and when the unlocking piece drives the stop piece to slide out of the slot, the stop piece squeezes the elastic piece to press the locking head to rotate and unlock.

[0009] A shelf push-pull assembly that is easy to lock as described above is characterized in that: a clamping groove is provided on the unlocking member, and both ends of the clamping groove are hinged to the two ends of the stop member; a stopper that can block the shelf is provided at one end of the locking member away from the hinge shaft, and the stopper passes through the clamping groove and extends between the guide pulley and the unlocking member.

[0010] The push-pull assembly of a shelf that is easy to lock as described above is characterized in that: the locking head is provided with a mounting groove with an opening on one side, the guide pulley and one end of the locking piece are hinged in the mounting groove, the edge of the mounting groove is provided with an arc guide edge, the clamping groove is provided with a supporting step that can lean against and slide relatively along the arc guide edge when the unlocking piece is rotated, and the locking head is provided with a positioning groove at the lower end of the arc guide edge for the supporting step to be snapped into position, and the shelf is pulled out when unlocking, and the shelf squeezes the locking piece so that one end face of the locking piece is pressed against the bottom wall of the mounting groove.

[0011] The above-mentioned easy-to-lock shelf push-pull assembly is characterized in that: the blocking head is provided with a positioning convex edge that can block the side wall of the shelf.

[0012] The above-mentioned easy-to-lock shelf push-pull assembly is characterized in that: the locking piece is hinged on the locking head, and the locking head is provided with a return torsion spring that can press the locking piece to rotate it in the direction of locking the shelf.

[0013] The shelf push-pull assembly that is easy to lock as described above is characterized in that: a guide groove extending along the length direction of the guide rail is provided in the guide rail, a pulley buckled in the guide groove and a support end capable of supporting the shelf is provided on the slider, and the first positioning device and the second positioning device are respectively inserted into the guide groove and block the slider to prevent the pulley from sliding out of the guide groove.

[0014] The above-mentioned easy-to-lock shelf push-pull assembly is characterized in that: the first positioning device is a blocking rod arranged on the guide rail and one end of which penetrates into the guide groove and can block the pulley.

[0015] The above-mentioned easy-to-lock shelf push-pull assembly is characterized in that: the first positioning device is a blocking rod arranged on the guide rail and one end of which penetrates into the guide groove and can block the pulley.

[0016] The above-mentioned easy-to-lock shelf push-pull assembly is characterized in that: the second positioning device is a plug provided on the locking head and inserted into the guide groove.

[0017] The above-mentioned easy-to-lock shelf push-pull assembly is characterized in that the buckle portion includes a buckle hook buckled on the inner side of the shelf and a stopper leaning against one side of the beam of the shelf and being pushed by the beam when the shelf is pushed inward.

[0018] The above-mentioned easy-to-lock shelf push-pull assembly is characterized in that the stopper is two protrusions arranged on the upper end of the slider and spaced apart from each other, and the crossbeam is clamped between the two protrusions.

[0019] A shelf push-pull assembly that is easy to lock as described above is characterized in that: two sliders are relatively spaced apart along the length of the guide rail, the two sliders are connected by a spring, the buckling part is a hook provided on the slider, the hook on the slider close to the tail end of the guide rail is buckled on the inner side of the shelf, and the hook on the slider away from the tail end of the guide rail is buckled on the crossbeam of the shelf.

[0020] A shelf assembly using the above-mentioned shelf push-pull assembly is characterized in that it includes multiple fixing plates extending vertically and fixed on two opposite side walls of the refrigerator, each side wall of the refrigerator is provided with at least two of the fixing plates in the front-to-back direction, the fixing plates are provided with support buckles that can be vertically slidable, the fixing plates are provided with multiple positioning parts arranged vertically, the support buckles are provided with positioning blocks that press against the positioning parts to position the support buckles, and the support buckles are provided with support grooves with upper openings for guide rails to be installed.

[0021] A shelf assembly as described above is characterized in that: a positioning installation groove is provided on the support buckle, the positioning block is hinged in the positioning installation groove, the positioning block is provided with a locking end that can be pressed against the positioning part for positioning, a locking end arranged at the lower end of the positioning block, and a spring-loaded end arranged at the upper end of the positioning block and opposite to the top wall of the positioning installation groove, a positioning spring is provided between the spring-loaded end and the top wall of the positioning installation groove, and a positioning frame that can buckle the locking end is hinged on the support buckle.

[0022] A shelf assembly as described above is characterized in that: the lower end of the guide rail is provided with a mounting convex rail, the support groove is provided with a clamping groove capable of clamping the mounting convex rail, the side wall of the guide rail is provided with a stamped protruding positioning convex edge, and the support buckle is provided with a blocking wall that blocks the positioning convex edge in the direction of the shelf pulling.

[0023] The utility model has the following beneficial effects: a locking head is arranged at the front end of the guide rail, a guide pulley is arranged on the locking head, the guide pulley supports the shelf and guides the shelf to slide, the shelf is buckled with the slider, when the shelf is pushed and pulled, the slider can be driven to slide on the guide rail, the shelf is pulled out relative to the guide rail, or pushed back on the guide rail, when the shelf is pushed back on the guide rail, it is locked by the locking piece on the locking head, the locking head has multiple functions, directly locks the shelf, has a simple structure and is easy to use; when the shelf is pulled out, the shelf presses the locking piece, and one end face of the locking piece is pressed against the bottom wall of the mounting groove, which is equivalent to the locking piece supporting the shelf, so that the shelf is more stable when it is pulled out; a pulley is arranged on the slider, and the pulley slides in the guide groove, when the shelf is pulled and pulled, the slider slides in the guide rail and will not be pulled out of the guide rail with the shelf; two sliders are arranged, and a spring is arranged between the two sliders, so that the distance between the two sliders can be adjusted, and one of the buckle hooks can be buckled on the beams at different positions, which is suitable for beams at different distances, thereby improving versatility.

Brief Description of the Drawings

[0024] Figure 1 This is a three-dimensional diagram of the first embodiment of the shelf push-pull assembly of the utility model;

[0025] Figure 2 for Figure 1 A magnified view of part I;

[0026] Figure 3 This is an exploded view of the first embodiment of the shelf push-pull assembly of the utility model;

[0027] Figure 4 It is a cross-sectional view of a locking head of a first embodiment of a shelf push-pull assembly of the utility model;

[0028] Figure 5 This is a three-dimensional diagram of a locking head of a first embodiment of a shelf push-pull assembly of the utility model;

[0029] Figure 6 This is a three-dimensional diagram of the second embodiment of the shelf push-pull assembly of the utility model;

[0030] Figure 7 This is a three-dimensional diagram of the components of the second embodiment of the shelf push-pull assembly of the utility model;

[0031] Figure 8 This is a three-dimensional diagram of the locking head of the second embodiment of the shelf push-pull assembly of the utility model;

[0032] Fig. 9 This is a cross-sectional view of the locking head of the second embodiment of the shelf push-pull assembly of the utility model;

[0033] Fig.10 This is an exploded view of the locking head of the second embodiment of the shelf push-pull assembly of the utility model;

[0034] Fig.11This is a reference diagram of the use state of the locking head of the second embodiment of the shelf push-pull assembly of the utility model;

[0035] Fig.12 This is a three-dimensional diagram of the third embodiment of the shelf push-pull assembly of the utility model;

[0036] Fig.13 This is an exploded view of the third embodiment of the shelf push-pull assembly of the utility model;

[0037] Fig.14 It is a three-dimensional diagram of the shelf assembly of the utility model;

[0038] Fig.15 It is a partial view of the main view of the shelf assembly of the utility model;

[0039] Fig.16 This is a reference diagram of the use status of the shelf assembly of the utility model;

[0040] Fig.17 for Fig.16 Enlarged view of the J part. [Specific implementation method]

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementations:

[0042] A shelf push-pull assembly that is easy to lock, embodiment 1, as shown in Figures 1 to 5 As shown, it includes a guide rail 1, which is extended along the front and back direction of the refrigerator. In this case, the front refers to the side close to the refrigerator door leaf, and the back refers to the back of the refrigerator. The guide rail 1 is provided with a slider 2 for supporting the shelf 10 and can slide along the length direction of the guide rail 1. The slider 2 is provided with a buckling part that can be buckled on the shelf 10 so that the slider 2 can be driven when the shelf 10 is pushed or pulled. The buckling part is buckled with the shelf 10, so that the shelf 10 and the slider 2 can be linked. The tail end of the guide rail 1 is provided with a first positioning device 3 that can block the slider 2 from moving to the rear side, and the guide rail 1 is provided with a second positioning device 4 that can block the slider 2 from moving to the front side on the front side of the first positioning device 3. The first positioning device 3 and the second positioning device 4 are arranged along the sliding direction of the slider 2. The first positioning device 3 prevents the slider 2 from detaching from the guide rail 1 to the rear side, and the second positioning device 4 prevents the slider 2 from detaching from the guide rail 1 to the front side. The front end of the guide rail 1 is plugged with a locking head 5, which is provided with a guide pulley 51 that can support the shelf 10 and can slide and guide the shelf 10. The shelf 10 is supported by the guide pulley 51 and the slider 2, and the installation is stable. The locking head 5 is movably provided with a locking piece 52 that can lock the shelf 10 to prevent the shelf 10 from being pulled out when the shelf 10 is pushed back into the refrigerator. The locking piece 52 directly blocks the shelf 10, so that the locking head 5 has the functions of supporting, guiding, and locking the shelf 10, and has a simple structure, convenient installation, and is convenient for locking the shelf 10.

[0043] In order to facilitate the positioning of the locking head 5, a stopper 53 is provided on the locking head 5 to lock the locking member 52 when the locking member 52 moves to the position of the locking shelf 10. The stopper 53 can lock the locking head 5 to keep the locking member 52 in a locked state. The stopper 53 is movably arranged on the locking head 5, and an unlocking member 54 is provided on the stopper 53 to drive the stopper 53 to unlock the locking member 52. The lower end of the locking member 52 is hinged to the locking head 5 through a hinge shaft 521, and a plug hole 56 is provided in the middle of the locking member 52 for the stopper 53 to pass through. The plug hole 56 has a certain length and extends along the length direction of the locking member 52. Both ends of the stopper 53 pass through the plug hole 56, and the stopper 53 is a horizontally arranged shaft. The locking head 5 is provided with a slot 55 for the stopper 53 to be inserted into when the locking member 52 is in the locked state. The upper end of the slot 55 is open. When the stopper 53 is inserted into the slot 55, the stopper 53 maintains its position, so that the locking member 52 cannot rotate. An elastic member 57 is provided in the socket 56 to be pressed against the stopper 53. The elastic member 57 is a spring. The lower end of the elastic member 57 presses against the stopper 53, and the upper end of the elastic member 57 presses against the upper end of the socket 56. A through hole connected to the socket 5 is provided at one end of the locking member 52, and a plug column is provided at one end of the socket 56 away from the through hole. When installing, the elastic member 57 is inserted into the socket 56 from the through hole, and the plug column is inserted into one end of the elastic member 57. After the stopper 53 is inserted, the through hole is blocked, and the other end of the elastic member 57 presses against the stopper 53. When the unlocking member 54 drives the stop member 53 to slide out of the slot 55, the unlocking member 54 can be pulled to slide the stop member 53 along the slot 55, and the stop member 53 squeezes the elastic member 57 to press the locking head 5 to rotate and unlock. When the unlocking member 54 is operated, the unlocking member 54 drives the stop member 53 to slide out of the slot 55, and the stop member 53 squeezes the elastic member 57. The insertion hole 56 is tilted, and the elastic member 57 presses the locking member 52 to rotate in the unlocking direction.

[0044] The unlocking member 54 is provided with a clamping groove 58, the lower ends of which are hinged to the two ends of the stopper 53, and the end of the locking member 52 away from the hinge shaft 521 is provided with a stopper 59 which can block the shelf 10 (the structure of the stopper 59 is not described in detail, according to Figure 8 It can be seen that the stop head 59 cooperates with the arc-shaped guide edge 501, and there is nothing special about the shape of the stop head 59. The stop head 59 passes through the clamping groove 58 and extends between the guide pulley 51 and the unlocking member 54. The shelf 10 is located on one side of the unlocking member 54. The upper end of the stop head 59 is higher than the guide pulley 51. In this way, the stop head 59 protrudes upward and can laterally block the front side rod of the shelf 10, thereby locking the shelf 10 and preventing the shelf 10 from being pulled out.

[0045] In order to make it more convenient to use, the locking head 5 is provided with a mounting groove 50 with an opening on one side, one end of the guide pulley 51 and the locking member 52 is hinged in the mounting groove 50, the side of the mounting groove 50 is provided with an arc-shaped guide edge 501, and the clamping groove 58 is provided with a supporting step 581 that can lean against and slide relatively along the arc-shaped guide edge 501 when the unlocking member 54 rotates. In this way, when the upper end of the unlocking member 54 is pressed downward, the unlocking member 54 will rotate around the stopper 53, and the supporting step 581 is supported and guided by the arc-shaped guide edge 501, and the bottom edge of the supporting step 581 is along the The arc-shaped guide edge 501 slides relatively, and since the locking member 54 rotates around the stop member 53, the supporting step 581 will also roll relative to the arc-shaped guide edge 501. During relative sliding, one end of the stop member 53 of the unlocking member 54 moves relatively, thereby pulling the stop member 53 out of the slot 55. When the stop member 53 is pulled out of the slot 55, the elastic member 57 presses the locking member 52 to rotate in the unlocking direction. A positioning groove 502 can be provided at the lower end of the arc-shaped guide edge 501, and the supporting step 581 is inserted into the positioning groove 502 to keep the unlocking member 54 in an unlocked state.

[0046] The guide rail 1 is provided with a guide slot 11 extending along the length direction of the guide rail 1. The front and rear ends of the guide slot 11 are open, and the locking head 5 is inserted from the front opening. The slider 2 is provided with a pulley 21 buckled in the guide slot 11 and a support end 22 capable of supporting the shelf 10. The support end 22 is horizontal. The first positioning device 3 and the second positioning device 4 are respectively inserted into the guide slot 11 and block the slider 2 to prevent the pulley 21 from sliding out of the guide slot 11. The first positioning device 3 and the second positioning device 4 are both provided on the guide rail 2 and one end of which penetrates into the guide slot 11 to block the pulley 21. The blocking rod can be a screw or a cylindrical rod.

[0047] The buckle connection part includes a hook 23 buckled on the inner side 20 of the shelf 10 and a stopper 24 that is against one side of the beam 30 of the shelf 10 and can be pushed by the beam 30 when the shelf 10 is pushed inward. The inner side 20 is a frame close to the side of the back plate of the refrigerator. The hook 23 and the stopper 24 stop the shelf in both inward and outward directions, so that the shelf 10 can drive the slider 2 when it is pushed inward or outward. In this embodiment, the stopper 24 is two protrusions arranged at the upper end of the slider 2 and spaced apart from each other. The protrusion is an upward bending block, and the beam 30 is sandwiched between the two protrusions.

[0048] Shelf push-pull assembly, embodiment 2, as Figures 6 to 11 As shown, the difference from the first embodiment is that the shape and structure of the locking head 5 are slightly different. The mounting groove 50 has a horizontal bottom wall. When the unlocking member 54 is rotated to unlock, the shelf 10 is pulled out, and the shelf 10 squeezes the locking member 52 so that one end surface of the locking member 52 is pressed against the bottom wall of the mounting groove 50. Fig.16As shown, the locking member 52 is pressed under the shelf 10 by the shelf 10, and the bottom wall of the mounting groove 50 has a certain supporting effect on the shelf 10. The locking member 5 is supported by the bottom wall of the mounting groove 50, and the locking member 5 will not continue to rotate downward, so that the shelf 10 can have a certain supporting effect. In this way, even when the shelf 10 is pulled out, the shelf 10 can obtain stable support. In this embodiment, the side wall of the guide rail 1 does not have a positioning convex edge 603, but a convex edge is stamped on the mounting convex rail 15 to block the side wall of the support buckle 7. The stop head 59 is provided with a positioning convex edge 603 that can block the side wall of the shelf 10. The positioning convex edge 603 is pressed against the outer wall of the shelf 10. When the shelf push-pull assembly is set on the left and right sides of the shelf 10, the positioning convex edges 603 on the left and right sides are on the left and right sides of the shelf 10, clamping the shelf 10 to position it, and preventing the shelf 10 from shifting left and right.

[0049] Shelf push-pull assembly, embodiment 3, as Figures 12 to 13 As shown, the difference from the first embodiment is that the structure of the locking head 5 is different. Specifically, the locking member 52 is hinged on the locking head 5. The locking head 5 is provided with a reset torsion spring 6 that can press the locking member 52 to rotate the locking member 52 in the direction of locking the shelf 10. The locking head 5 blocks the shelf 10 through the elastic force of the reset torsion spring 6. The locking member 52 is provided with a bayonet, which is buckled on the shelf 10. The locking member 52 and the guide pulley 51 share the same axis. In this embodiment, the second positioning device 4 is a plug provided on the locking head 5 and inserted into the guide groove 11. The end of the locking head 5 is the second positioning device 4. When the shelf 10 is pulled out, the locking member 52 is turned away from the shelf 10, and the shelf 10 continues to be pulled out, pressing the locking member 52 under the shelf 10. When the shelf 10 is pushed back, it is reset by the reset torsion spring 6.

[0050] In this embodiment, the structure of the slider 2 is also different. Specifically, two sliders 2 are relatively spaced apart along the length of the guide rail 1. The two sliders 2 are connected by a spring 25. The buckling portion is a hook 23 provided on the slider 2. The hook 23 on the slider 2 close to the rear end of the guide rail 1 is buckled on the inner side 20 of the shelf 10, and the hook 23 on the slider 2 away from the rear end of the guide rail 1 is buckled on the beam 30 of the shelf 10. The hooks 23 on the two sliders 2 are symmetrically arranged, so that the shelf can be driven when pushed and pulled. Through such a design, the hooks 23 on the slider 2 can be buckled on different beams 30, which is applicable to beams 30 at different distances.

[0051] A shelf assembly using the above shelf push-pull assembly, such as Figure 1-17As shown, the rack push-pull assembly is installed in the manner of Embodiment 1, including multiple fixing plates 40 extending vertically and fixed on two opposite side walls of the refrigerator, the fixing plates 40 are on the left and right side walls of the refrigerator, and each side wall of the refrigerator is provided with at least two fixing plates 40 in the front and rear directions, and the fixing plates 40 are provided with support buckles 7 that can slide vertically, and the fixing plates 40 are provided with multiple positioning parts 401 arranged vertically, and the positioning parts 401 can be positioning protrusions or positioning holes. The support buckle 7 is provided with a positioning block 71 that presses against the positioning part 401 to position the support buckle 7, and the support buckle 7 is provided with a support groove 72 with an upper end opening for the guide rail 1 to be installed. The support buckle 7 is provided with a positioning installation groove 73, the positioning block 71 is hinged in the positioning installation groove 73, the positioning block 71 is provided with a locking end 74 that can be pressed against the positioning portion 401 for positioning, the locking end 74 is provided at the lower end of the positioning block 71, and the spring-pressing end 76 is provided at the upper end of the positioning block 71 and opposite to the top wall of the positioning installation groove 73, and the locking end 74 and the locking end 74 are on both sides of the lower end of the positioning block 71. A positioning spring 77 is provided between the spring-pressing end 76 and the top wall of the positioning installation groove 73, and a positioning frame 78 that can buckle the locking end 74 is hinged on the support buckle 7, and the lower end of the positioning frame 78 is buckled on the locking end 74 to keep the positioning block 71 in position. A mounting convex rail 15 is provided at the lower end of the guide rail 1, and a clamping groove 58 that can clamp the mounting convex rail 15 is provided in the support groove 72. The clamping groove 58 clamps the mounting convex rail 15 from both sides and can be a dovetail groove or a C-shaped groove, thereby limiting the vertical movement of the guide rail 1. A stamped protruding positioning convex edge 603 is provided on the side wall of the guide rail 1, and the positioning convex edge 603 is stamped into an arc block shape. A retaining wall 80 that blocks the positioning convex edge 603 in the pulling direction of the shelf 10 is provided on the support buckle 7. Two positioning convex edges 603 are provided in a one-to-one correspondence with the support buckle 7, one of the positioning convex edges 603 is blocked against the left side of the retaining wall 80 of one of the support buckles 7, and the other positioning convex edge 603 is blocked against the right side of the retaining wall 80 of the other support buckle 7, so that the forward and backward movement of the guide rail 1 can be limited. When the locking member 53 is pulled out from the card slot 55, the elastic member 57 presses the locking member 52 to rotate in the unlocking direction by a certain angle, but the stopper 59 is not completely lower than the shelf 10. At this time, the shelf 10 is pulled out. Since the unlocking member 54 can no longer limit the rotation of the locking member 52, the shelf 10 squeezes the stopper 59, and the stopper 59 rotates to the bottom of the shelf 10 to support the shelf 10, and the shelf 10 is drawn out. Fig.17 When pushing back the shelf 10, one end of the unlocking member 54 is pushed upward, and the unlocking member 54 slides upward relatively along the arc-shaped guide edge 501, driving the stopper 53 back to the slot 55. The stopper 53 rotates and resets under the force in the slot 55, so that the stopper 59 blocks the shelf 10 again, and the shelf 10 is locked.

[0052] The above contents are further detailed descriptions of the present invention in combination with specific preferred technical solutions, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the utility model.

Claims

1. A shelf push-pull assembly that is easy to lock, characterized in that: The invention comprises a guide rail (1), wherein the guide rail (1) is provided with a slider (2) for supporting a shelf (10) and being able to slide along the length direction of the guide rail (1), wherein the slider (2) is provided with a locking portion that can be buckled on the shelf (10) so as to drive the slider (2) when the shelf (10) is pushed or pulled, wherein the tail end of the guide rail (1) is provided with a first positioning device (3) that can block the slider (2) from moving toward the rear side, wherein the guide rail (1) is provided with a second positioning device (4) that can block the slider (2) from moving toward the front side on the front side of the first positioning device (3), wherein the front end of the guide rail (1) is provided with a locking head (5), wherein the locking head (5) is provided with a guide pulley (51) that can support the shelf (10) and can guide the shelf (10) to slide, and wherein the locking head (5) is movably provided with a locking member (52) that can lock the shelf (10) to prevent the shelf (10) from being pulled out when the shelf (10) is pushed back into the refrigerator.

2. The locking shelf push-pull assembly according to claim 1, characterized in that: The locking head (5) is provided with a stopper (53) which can lock the locking head (5) when the locking member (52) moves to a locking shelf (10) position.

3. The locking shelf push-pull assembly according to claim 2, characterized in that: The stopper (53) is movably arranged on the locking head (5), and an unlocking member (54) capable of driving the stopper (53) to unlock the locking member (52) is provided on the stopper (53).

4. The locking shelf push-pull assembly according to claim 3, characterized in that: The locking member (52) is hinged to the locking head (5) via a hinge shaft (521); a plug hole (56) for the stop member (53) to pass through is provided in the middle of the locking member (52); a slot (55) for the stop member (53) to be inserted into when the locking member (52) is in a locked state is provided on the locking head (5); an elastic member (57) for pressing on the stop member (53) is provided in the plug hole (56); when the unlocking member (54) drives the stop member (53) to slide out of the slot (55), the stop member (53) presses the elastic member (57) to press the locking head (5) to rotate and unlock.

5. The locking shelf push-pull assembly according to claim 4, characterized in that: The unlocking member (54) is provided with a clamping groove (58), and the two ends of the clamping groove (58) are hinged to the two ends of the stop member (53). The end of the locking member (52) away from the hinge shaft (521) is provided with a stopper (59) capable of blocking the shelf (10), and the stopper (59) passes through the clamping groove (58) and extends between the guide pulley (51) and the unlocking member (54).

6. The locking shelf push-pull assembly according to claim 5, characterized in that: The locking head (5) is provided with a mounting groove (50) with an opening on one side, one end of the guide pulley (51) and the locking member (52) are hinged in the mounting groove (50), the side of the mounting groove (50) is provided with an arc-shaped guide edge (501), the clamping groove (58) is provided with a supporting step (581) which can be pressed against and relatively slid along the arc-shaped guide edge (501) when the unlocking member (54) rotates, and a positioning groove (502) is provided at the lower end of the arc-shaped guide edge (501) on the locking head (5) for the supporting step (581) to be snapped into position, and when the shelf (10) is pulled out in the unlocked state, the shelf (10) presses the locking member (52) so that one end surface of the locking member (52) is pressed against the bottom wall of the mounting groove (50).

7. The locking shelf push-pull assembly according to claim 5, characterized in that: The stopper (59) is provided with a positioning convex edge (603) capable of blocking the side wall of the shelf (10).

8. The locking shelf push-pull assembly according to claim 1, characterized in that: The locking member (52) is hinged on the locking head (5), and the locking head (5) is provided with a return torsion spring (6) capable of pressing the locking member (52) to rotate the locking member (52) in the direction of locking the shelf (10).

9. The locking shelf push-pull assembly according to claim 1, characterized in that: The guide rail (1) is provided with a guide groove (11) extending along the length direction of the guide rail (1); the slider (2) is provided with a pulley (21) buckled in the guide groove (11) and a support end (22) capable of supporting the shelf (10); the first positioning device (3) and the second positioning device (4) are respectively inserted into the guide groove (11) and block the slider (2) to prevent the pulley (21) from sliding out of the guide groove (11).

10. The locking shelf push-pull assembly according to claim 1, characterized in that: The first positioning device (3) is a blocking rod which is arranged on the guide rail (1) and has one end inserted into the guide groove (11) and can block the pulley (21).

11. The locking shelf push-pull assembly according to claim 1, characterized in that: The second positioning device (4) is a plug provided on the locking head (5) and inserted into the guide groove (11).

12. The locking shelf push-pull assembly according to claim 1, characterized in that: The buckle connection portion comprises a buckle hook (23) buckled on the inner side edge (20) of the shelf (10) and a stopper (24) abutting against one side of a crossbeam (30) of the shelf (10) and capable of being pushed by the crossbeam (30) when the shelf (10) is pushed inward.

13. The locking shelf push-pull assembly according to claim 12, characterized in that: The stoppers (24) are two protrusions which are arranged on the upper end of the slide block (2) and are spaced apart from each other, and the crossbeam (30) is sandwiched between the two protrusions.

14. The locking shelf push-pull assembly according to claim 1, characterized in that: Two sliders (2) are arranged relatively spaced apart along the length of the guide rail (1), and the two sliders (2) are connected via a spring (25). The buckling portion is a buckle hook (23) arranged on the slider (2), the buckle hook (23) on the slider (2) close to the rear end of the guide rail (1) is buckled on the inner side (20) of the shelf (10), and the buckle hook (23) on the slider (2) away from the rear end of the guide rail (1) is buckled on the crossbeam (30) of the shelf (10).

15. A shelf assembly using the shelf push-pull assembly according to any one of claims 1 to 14, characterized in that: The invention comprises a plurality of fixing plates (40) extending vertically and fixed on two opposite side walls of the refrigerator, each side wall of the refrigerator is provided with at least two fixing plates (40) in the front-to-back direction, a supporting buckle (7) is provided on the fixing plate (40) in a vertically slidable manner, a plurality of positioning parts (401) arranged vertically is provided on the fixing plate (40), a positioning block (71) is provided on the supporting buckle (7) and is pressed against the positioning part (401) to position the supporting buckle, and a supporting groove (72) with an upper end opening for the guide rail (1) to be installed is provided on the supporting buckle (7).

16. A shelf assembly according to claim 15, characterized in that: The guide rail (1) is provided with a mounting convex rail (15) at the lower end, the support groove (72) is provided with a clamping groove (58) capable of clamping the mounting convex rail (15), the side wall of the guide rail (1) is provided with a stamped protruding positioning convex edge (603), and the support buckle (7) is provided with a blocking wall (80) for blocking the positioning convex edge (603) in the direction of pulling out the shelf (10).

17. A shelf assembly according to claim 15, characterized in that: The support buckle (7) is provided with a positioning installation groove (73), the positioning block (71) is hinged in the positioning installation groove (73), the positioning block (71) is provided with a locking end (74) that can be pressed against the positioning portion (401) for positioning, the locking end (74) is arranged at the lower end of the positioning block (71), and a spring-pressing end (76) is arranged at the upper end of the positioning block (71) and is opposite to the top wall of the positioning installation groove (73), a positioning spring (77) is arranged between the spring-pressing end (76) and the top wall of the positioning installation groove (73), and a positioning frame (78) that can buckle the locking end (74) is hinged on the support buckle (7).

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