A high-strength square refrigerator drawer guide link mechanism

Abstract

The present invention is applicable to the technical field of guide rail link mechanisms, and provides a high-strength square refrigerator drawer guide rail link mechanism, which includes two groups of guide rail components. Synchronization components are respectively connected between the opposite sides of the two groups of guide rail components. This device solves the problem that the existing guide rail link structure cannot be adaptively adjusted according to the size of the drawer, resulting in a single function of this structure. Moreover, only one drawer can be used on one set of guide rail link structures. If two kinds of items need to be placed separately, a new set of guide rail link structures needs to be reinstalled beside this guide rail link structure, which greatly occupies space. The present invention achieves the effect of being adaptively adjusted according to the size so that it can be compatible with different refrigerator drawers. The present invention can be used with one drawer or two drawers simultaneously, which is convenient for placing different types of items at the same time, and while one drawer is opened, the other drawer remains closed, greatly reducing the occupied space.

Description

Technical Field

[0001] The present invention relates to the technical field of guide rail link mechanisms, and more specifically, it relates to a high-strength square refrigerator drawer guide rail link mechanism. Background Art

[0002] Refrigerator drawers are mainly used for freezing and storing food, and the refrigerator drawers can be freely pushed and pulled through a guide rail link mechanism. By the cooperation of the drawer and the guide rail link mechanism, while the drawer performs a linear reciprocating motion, it can achieve a high-precision linear motion under high load. The existing guide rail link structure cannot be adaptively adjusted according to the size of the drawer, so that the structure has a single function, and only one drawer can be used on a set of guide rail link structures. If it is necessary to place two kinds of items separately, a set of guide rail link structures needs to be reinstalled beside this guide rail link structure, which greatly occupies space and reduces the functionality of the guide rail link structure. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a high-strength square refrigerator drawer guide rail link mechanism.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A high-strength square refrigerator drawer guide rail link mechanism, including two groups of guide rail components. Synchronization components are respectively connected between the opposite sides of the two groups of guide rail components. A boosting component is hinged between the outer side walls of the two synchronization components and the ends of the corresponding guide rail components. A connection component is connected between the two synchronization components. A support component is installed at the bottom of the connection component. Tensile components are respectively connected between the support component and the two boosting components. A locking component is installed at the connection between the boosting component and the tensile component.

[0005] The present invention is further provided as: Each of the two groups of guide rail components includes a track, a slider is slidably connected inside the track, and a connecting plate is connected to the side of the slider away from the track.

[0006] The present invention is further provided as: The synchronization component includes two screw rods, the two screw rods are respectively installed on the side of the connecting plate away from the slider, sleeves are threadedly connected to the outer side walls of the two screw rods, and connecting rods are inserted into the two sleeves.

[0007] The present invention is further configured such that: the boosting assembly includes two guiding tubes, the two guiding tubes are respectively slidably connected to the outer sidewall of the connecting rod, springs are respectively connected to the opposite sides of the two guiding tubes, the connecting assembly is connected to the opposite ends of the two springs, connecting tubes are sleeved on the bottoms of the two guiding tubes, a pneumatic spring rod is connected to the outer sidewall of the connecting tube, the end of the pneumatic spring rod away from the connecting tube is hinged inside the track and is located at the end position of the track, and a baffle is installed inside the track and on one side of the pneumatic spring rod.

[0008] The present invention is further configured such that: the connecting assembly includes a groove body and a fixing block, the groove body and the fixing block are respectively connected to the opposite ends of the two connecting rods, and the fixing block is inserted into the inside of the groove body, a fixing bolt is threadedly connected to the top of the groove body, and the bottom end of the fixing bolt extends into the inside of the fixing block.

[0009] The present invention is further configured such that: the supporting assembly includes a micro electric push rod, the micro electric push rod is installed at the bottom of the groove body, a supporting plate is installed on the piston rod of the micro electric push rod, the supporting plate is horizontally arranged, and a guiding plate is installed on the top of the supporting plate.

[0010] The present invention is further configured such that: there are two groups of the locking assemblies (6), each group of the locking assemblies (6) includes a plurality of gear teeth (61), and the plurality of gear teeth (61) are respectively installed on the outer sidewall of the bottom end of the guiding tube (31), a wedge block is arranged inside the connecting tube, an inclined portion is arranged on one side of the wedge block, the inclined portion is in fit with the arc surface of the gear teeth, and one end of the wedge block is connected to the stretching assembly.

[0011] The present invention is further configured such that: the stretching assembly includes bumpers, there are two bumpers, the two bumpers are arranged corresponding to the gear teeth in the two groups of locking assemblies, one end of the bumper extends into the corresponding connecting tube and is connected to the corresponding wedge block, a pulling rope is connected to the outer sidewall of the bumper, the end of the pulling rope away from the bumper is connected to a sliding seat, the top of the sliding seat is slidably connected to the bottom of the supporting plate, a pull rod is connected to the front end of the sliding seat, two arc portions are symmetrically arranged at the bottom end of the supporting plate, and the outer sidewall of the pulling rope is in fit with the arc portions.

[0012] The present invention is further configured such that: a first drawer is connected between the two connecting plates, and the top of the guiding plate is in fit with the middle of the bottom surface of the first drawer.

[0013] The present invention is further configured such that: two second drawers are connected between the two connecting plates, the bottoms of the two second drawers and the ends close to each other are in fit with the top of the supporting plate, and the guiding plate is located between the two second drawers.

[0014] The advantages of the present invention are

[0015] (1) By setting up a synchronization component, the overall length of the synchronization component can be adjusted by changing the length of the connecting rod extending into the sleeve. In this way, the distance between the two tracks can be further adjusted. The track connecting rod structure can be compatible with different refrigerator drawers, greatly improving the functionality and versatility of this structure;

[0016] (2) By setting up a connection component, after the fixing block is inserted into the inside of the groove body, the two are locked by a fixing bolt. At this time, the connection component connects the two connecting rods together, enabling the two guide rail components to operate synchronously; conversely, by releasing the connection state between the fixing block and the groove body, the two guide rail components can operate independently. This setting can be used for the case of using one drawer or two drawers simultaneously, facilitating the placement of different types of items at the same time, and while one drawer is opened, the other drawer remains closed, greatly reducing the occupied space and improving the functionality of this structure;

[0017] (3) By setting up a locking component and a stretching component, when the drawer slides, the angle of the assisting component will change. The locking component can lock the angle of the assisting component, and the stretching component is used to retain or release the locking state of the locking component on the assisting component, so as to freely adjust the pulling-out length of the drawer and maintain the locking, avoiding the situation that the drawer slides out of the refrigerator when the staff takes or places items in the drawer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the present invention;

[0019] Figure 2 is the structural schematic diagram of the guide rail component of the present invention;

[0020] Figure 3 is the connection structural schematic diagram of the assisting component, connection component and supporting component of the present invention;

[0021] Figure 4 is the front view structural schematic diagram of the present invention;

[0022] Figure 5 is the structural schematic diagram of the locking component of the present invention;

[0023] Figure 6 is Figure 1 the enlarged structural schematic diagram of area A in

[0024] Figure 7 is the connection structural schematic diagram of the first drawer and the guide rail component of the present invention;

[0025] Figure 8 is Figure 7 the front view structural schematic diagram of

[0026] Figure 9 Schematic diagram of the connection structure between the second drawer and the guide rail assembly of the present invention;

[0027] Figure 10 is Figure 9 front view structure schematic diagram of;

[0028] In the figure: 1. Guide rail assembly; 11. Rail; 12. Slide block; 13. Connecting plate; 2. Synchronization assembly; 21. Connecting rod; 22. Sleeve; 23. Screw; 3. Boosting assembly; 31. Guide tube; 32. Connecting tube; 33. Pneumatic spring rod; 34. Baffle; 35. Spring; 4. Connecting assembly; 41. Groove body; 42. Fixed block; 43. Fixed bolt; 5. Support assembly; 51. Micro electric push rod; 52. Support plate; 53. Guide plate; 6. Locking assembly; 61. Tooth; 62. Wedge block; 63. Inclined part; 7. Tensioning assembly; 71. Pulling rope; 72. Slide seat; 73. Pull rod; 74. Convex block; 75. Arc part; 8. First drawer; 9. Second drawer. Specific embodiments

[0029] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0031] In the present invention, unless otherwise stated, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually left and right as shown in the drawings; "inside, outside" refer to inside and outside the contours of the respective components, but the above orientation terms do not limit the present invention.

[0032] Embodiment 1

[0033] Please refer to Figure 1-8 , the present invention provides the following technical solutions:

[0034] A high-strength square refrigerator drawer guide rail link mechanism, comprising two sets of guide rail assemblies 1. Synchronization assemblies 2 are respectively connected between the opposite sides of the two sets of guide rail assemblies 1. The guide rail assemblies 1 are installed inside the refrigerator and are used for installing and fixing the drawers that need to slide. A boosting assembly 3 is hinged between the outer side walls of the two synchronization assemblies 2 and the ends of the corresponding guide rail assemblies 1. When the two sets of guide rail assemblies 1 slide synchronously, the boosting assembly 3 is used to provide boost to the guide rail assemblies 1, enabling the drawers to be quickly pulled out of the refrigerator. A connection assembly 4 is connected between the two synchronization assemblies 2. Since there are two sets of guide rail assemblies 1, the two sets of guide rail assemblies 1 are connected through the connection assembly 4 and the two synchronization assemblies 2, causing the two sets of guide rail assemblies 1 to slide synchronously. A support assembly 5 is installed at the bottom of the connection assembly 4. Tensile assemblies 7 are respectively connected between the support assembly 5 and the two boosting assemblies 3. A locking assembly 6 is installed at the connection between the boosting assembly 3 and the tensile assembly 7. The support assembly 5 is used to support the drawers, enabling the drawers to maintain a horizontal state when sliding inside the refrigerator, thereby increasing the support strength of the drawers. Moreover, when the drawers slide, the angle of the boosting assembly 3 changes, and the locking assembly 6 can lock the angle of the boosting assembly 3 to prevent the drawers from sliding back and forth when staff take or place items inside the drawers. The tensile assembly 7 is used to retain or release the locked state of the locking assembly 6 on the boosting assembly 3.

[0035] Both sets of guide rail assemblies 1 include tracks 11. A slider 12 is slidably connected inside the track 11. A connecting plate 13 is connected to the side of the slider 12 away from the track 11. The track 11 is installed inside the refrigerator, and the slider 12 is slidably connected to the track 11. The two sides of the connecting plate 13 are respectively connected to the slider 12 and the drawer, causing the connecting plate 13 and the slider 12 to be displaced when the drawer slides inside the refrigerator. The cooperation between the slider 12 and the track 11 plays a guiding role in the sliding of the drawer.

[0036] The synchronization assembly 2 includes two screw rods 23. The two screw rods 23 are respectively installed on the side of the connecting plate 13 away from the slider 12. Sleeve tubes 22 are threadedly connected to the outer side walls of the two screw rods 23. Connecting rods 21 are inserted into the interiors of the two sleeve tubes 22. The sleeve tubes 22 are used to connect the screw rods 23 and the connecting rods 21, and the connecting rods 21 are inserted into the interiors of the sleeve tubes 22. Therefore, by changing the length of the connecting rods 21 extending into the sleeve tubes 22, the overall length of the synchronization assembly 2 can be adjusted. This method can further adjust the distance between the two tracks 11, enabling the guide rail assemblies 1 to adapt to refrigerators of different sizes and widths.

[0037] The assisting component 3 includes two guiding tubes 31 which are respectively slidably connected to the outer sidewall of the connecting rod 21. Springs 35 are respectively connected to the opposite sides of the two guiding tubes 31. The connecting component 4 is connected to the opposite ends of the two springs 35. Connecting tubes 32 are sleeved on the bottoms of the two guiding tubes 31. An air spring rod 33 is connected to the outer sidewall of the connecting tube 32. The end of the air spring rod 33 away from the connecting tube 32 is hinged inside the track 11 and is located at the end position of the track 11. A baffle 34 is installed inside the track 11 and on one side of the air spring rod 33. When the synchronization component 2 displaces towards the position of the baffle 34, the connecting rod 21 of the synchronization component 2 drives the corresponding guiding tube 31 and connecting tube 32 to displace synchronously. The connecting tube 32 pushes the piston rod of the air spring rod 33 to contract. When the piston rod of the air spring rod 33 is completely contracted, the whole air spring rod 33 will change its angle, and the guiding tube 31 slides on the outer sidewall of the connecting rod 21 and moves away from the sleeve 22, and the spring 35 is gradually compressed until the angles of the two air spring rods 33 are the same. At this time, the drawer is completely retracted;

[0038] On the contrary, when the synchronization component 2 displaces away from the position of the baffle 34, the angles of the two air spring rods 33 are inclined and the piston rods gradually extend, and the spring 35 gradually returns to its free state. During this process, the drawer gradually extends.

[0039] The connecting component 4 includes a groove body 41 and a fixing block 42. The groove body 41 and the fixing block 42 are respectively connected to the opposite ends of the two connecting rods 21, and the fixing block 42 is inserted into the groove body 41. A fixing bolt 43 is threadedly connected to the top of the groove body 41, and the bottom end of the fixing bolt 43 extends into the fixing block 42. When installing the two sets of rail components 1, the staff can insert the fixing block 42 into the groove body 41 and lock the two with the fixing bolt 43. At this time, the connecting component 4 connects the two connecting rods 21 together, enabling the two sets of rail components 1 to operate synchronously;

[0040] On the contrary, when the staff releases the connection state between the fixing block 42 and the groove body 41, the two sets of rail components 1 can operate independently.

[0041] The supporting component 5 includes a micro electric push rod 51 which is installed at the bottom of the groove body 41. A supporting plate 52 is installed on the piston rod of the micro electric push rod 51. The supporting plate 52 is horizontally arranged. A guiding plate 53 is installed on the top of the supporting plate 52. The width of the guiding plate 53 is greater than the diameter length of the piston rod of the micro electric push rod 51. The micro electric push rod 51 is used to adjust the height of the supporting plate 52 and the guiding plate 53, so that the rail component 1 can adapt to drawers of different heights, and the supporting plate 52 and the guiding plate 53 are used to support the drawer, enabling the drawer to maintain a horizontal state.

[0042] There are two sets of locking components 6. Each set of locking components 6 includes a plurality of teeth 61, and the plurality of teeth 61 are respectively installed on the outer side wall of the bottom end of the guide tube 31. A wedge block 62 is arranged inside the connecting tube 32. One side of the wedge block 62 is provided with an inclined portion 63, and the inclined portion 63 is in contact with the arc surface of the tooth 61. One end of the wedge block 62 is connected to the stretching component 7. When the drawer slides towards the baffle 34, the pneumatic spring rod 33 changes its angle, and the piston rod of the pneumatic spring rod 33 drives the connecting tube 32 and the guide tube 31 to displace. At this time, the included angles between the pneumatic spring rod 33 and the guide tube 31 and the connecting rod 21 change, causing the connecting tube 32 to slowly rotate at the bottom end of the guide tube 31. Since the teeth 61 are installed at the bottom end of the guide tube 31 and the wedge block 62 is arranged inside the connecting tube 32, as the connecting tube 32 gradually rotates, the inclined portion 63 of the wedge block 62 slides on the arc surfaces of the plurality of teeth 61. When the drawer is pulled away from the baffle 34, the connecting tube 32 rotates in the reverse direction, and the right-angle portion of the wedge block 62 fits on the inclined surface of the tooth 61. At this time, the connecting tube 32 is unable to rotate due to the resistance, and the drawer is in a locked state.

[0043] The stretching component 7 includes bump blocks 74. There are two bump blocks 74, and the two bump blocks 74 are arranged corresponding to the teeth 61 in the two sets of locking components 6. One end of the bump block 74 extends into the corresponding connecting tube 32 and is connected to the corresponding wedge block 62. A pull rope 71 is connected to the outer side wall of the bump block 74. One end of the pull rope 71 away from the bump block 74 is connected to a sliding seat 72. The top of the sliding seat 72 is slidably connected to the bottom of the support plate 52. The front end of the sliding seat 72 is connected to a pull rod 73. Two arc-shaped portions 75 are symmetrically arranged at the bottom end of the support plate 52, and the outer side wall of the pull rope 71 is in contact with the arc-shaped portions 75. When the limiting state of the wedge block 62 on the tooth 61 is released, the pull rod 73 can be pulled to drive the sliding seat 72 to slide at the bottom of the support plate 52. The sliding seat 72 drives the pull rope 71 and the bump block 74 to slide away from the connecting tube 32, and the bump block 74 slides the wedge block 62 out from between the two teeth 61, thereby releasing the limiting state of the wedge block 62 on the tooth 61;

[0044] An elastic member is installed at the penetration connection between the bump block 74 and the connecting tube 32, that is, when the bump block 74 slides out of the connecting tube 32, the elastic member is pulled;

[0045] When the pulling force on the pull rod 73 is released, the elastic force of the elastic member drives the bump block 74 to reset, causing the bump block 74 to slide back into the connecting tube 32 again.

[0046] A first drawer 8 is connected between the two connecting plates 13. The top of the guide plate 53 is attached to the middle of the bottom surface of the first drawer 8. This setting can install a first drawer 8 between the two guide rail assemblies 1, and the first drawer 8 is supported by the guide plate 53 to keep it in a horizontal state.

[0047] Specifically, the staff installs two tracks 11 inside the refrigerator and installs the corresponding sliders 12 inside the tracks 11. Since the sleeve 22 and the screw 23 are threadedly connected, by rotating the sleeve 22, the length of the screw 23 extending into the sleeve 22 can be adjusted, thereby adjusting the overall length of the sleeve 22, the connecting rod 21, and the screw 23. In this way, the distance between the two tracks 11 can be further adjusted, enabling the guide rail assembly 1 to adapt to refrigerators of different sizes and widths;

[0048] After the adjustment is completed, the fixing block 42 is inserted into the slot 41 and locked with the slot 41 through the fixing bolt 43. At this time, the connecting assembly 4 connects the two connecting rods 21 together, enabling the two guide rail assemblies 1 to operate synchronously;

[0049] The staff connects both sides of the first drawer 8 to the two connecting plates 13, and the bottom of the first drawer 8 fits on the top of the guide plate 53. The staff starts the micro electric push rod 51 through control. The micro electric push rod 51 is used to adjust the height of the support plate 52 and the guide plate 53, enabling the guide rail assembly 1 to adapt to the first drawer 8 of different heights. Moreover, the support plate 52 and the guide plate 53 are used to support the first drawer 8, enabling the first drawer 8 to maintain a horizontal state;

[0050] After the above operations are completed, the installation of the first drawer 8 can be completed;

[0051] When the staff pushes the first drawer 8 to displace towards the position of the baffle 34, the connecting rod 21 of the synchronization assembly 2 drives the corresponding guide tube 31 and the connecting tube 32 to displace synchronously. The connecting tube 32 pushes the piston rod of the pneumatic spring rod 33 to contract, and the pneumatic spring rod 33 changes its angle. The piston rod of the pneumatic spring rod 33 drives the connecting tube 32 and the guide tube 31 to displace. At this time, the angle between the pneumatic spring rod 33 and the guide tube 31 and the connecting rod 21 changes, causing the connecting tube 32 to slowly rotate at the bottom end of the guide tube 31. Since the gear teeth 61 are installed at the bottom end of the guide tube 31 and the wedge block 62 is arranged inside the connecting tube 32, as the connecting tube 32 gradually rotates, the inclined part 63 of the wedge block 62 slides on the arc surface of the multiple gear teeth 61;

[0052] When the overall angle of the pneumatic spring rod 33 changes, the guide tube 31 slides on the outer side wall of the connecting rod 21 and moves away from the sleeve 22, and the spring 35 is gradually compressed until the angles of the two pneumatic spring rods 33 are the same. At this time, the first drawer 8 is completely retracted, and the right-angled part of the wedge block 62 fits on the inclined surface of the gear teeth 61. At this time, the connecting tube 32 is unable to rotate due to resistance, and the first drawer 8 is in a locked state;

[0053] Conversely, when the staff pulls the first drawer 8, the limiting state of the wedge block 62 on the gear teeth 61 needs to be released. The staff drives the sliding seat 72 to slide at the bottom of the support plate 52 by pulling the pull rod 73. The sliding seat 72 drives the pull rope 71 and the convex block 74 to slide away from the connecting pipe 32. The convex block 74 slides the wedge block 62 out from between the two gear teeth 61, thereby releasing the limiting state of the wedge block 62 on the gear teeth 61;

[0054] An elastic member is installed at the penetration connection between the convex block 74 and the connecting pipe 32, that is, when the convex block 74 slides out of the connecting pipe 32, the elastic member is pulled;

[0055] After the limiting state is released, the angles of the two pneumatic spring rods 33 are inclined and the piston rods gradually extend, and the spring 35 gradually returns to its free state. During this process, the first drawer 8 gradually extends;

[0056] When the first drawer 8 reaches the corresponding sliding length as required, the staff releases the pulling force on the pull rod 73 and the first drawer 8. The elastic force of the elastic member drives the convex block 74 to reset, causing the convex block 74 to slide back into the interior of the connecting pipe 32 again, and the wedge block 62 limits the gear teeth 61 again.

[0057] Embodiment 2

[0058] Please refer to Figure 9-10 On the basis of Embodiment 1, the following improvements are made in this embodiment.

[0059] Two second drawers 9 are connected between the two connecting plates 13. The bottoms of the two second drawers 9 and the ends close to each other are attached to the top of the support plate 52. The guide plate 53 is located between the two second drawers 9;

[0060] Specifically, when installing two second drawers 9 between the two guide rail assemblies 1, the staff first releases the connection state between the fixed block 42 and the groove body 41, causing the guide rail assembly 1, the synchronization assembly 2, the boosting assembly 3, the connection assembly 4, the locking assembly 6, and the stretching assembly 7 to be separated into two independently operating parts. Then, the mutually repulsive sides of the two second drawers 9 are respectively installed on the two connecting plates 13, and the bottoms of the second drawers 9 are placed on the top of the support plate 52;

[0061] After this installation operation is completed, the staff only needs to pull one second drawer 9, and the corresponding synchronization assembly 2, boosting assembly 3, connection assembly 4, locking assembly 6, and stretching assembly 7 of this second drawer 9 start to operate, while the synchronization assembly 2, boosting assembly 3, connection assembly 4, locking assembly 6, and stretching assembly 7 corresponding to the other second drawer 9 remain stationary, and this second drawer 9 slides on the top of the support plate 52, thereby pulling out this second drawer 9, and the other second drawer 9 remains stationary.

[0062] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0063] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0064] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein.

[0065] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-strength square refrigerator drawer guide link mechanism, comprising two groups of guide rail assemblies (1), characterized in that: Synchronous assemblies (2) are respectively connected between the opposite sides of the two groups of guide rail assemblies (1). A boosting assembly (3) is hinged between the outer side walls of the two synchronous assemblies (2) and the ends of the corresponding guide rail assemblies (1). A connecting assembly (4) is connected between the two synchronous assemblies (2). A supporting assembly (5) is installed at the bottom of the connecting assembly (4). Tensile assemblies (7) are respectively connected between the supporting assembly (5) and the two boosting assemblies (3). A locking assembly (6) is installed at the connection between the boosting assembly (3) and the tensile assembly (7); Both of the two groups of guide rail assemblies (1) include rails (11). A slider (12) is slidably connected inside the rail (11). A connecting plate (13) is connected to the side of the slider (12) away from the rail (11); The synchronous assembly (2) includes two screw rods (23). The two screw rods (23) are respectively installed on the side of the connecting plate (13) away from the slider (12). Sleeve tubes (22) are threadedly connected to the outer side walls of the two screw rods (23). Connecting rods (21) are inserted into the two sleeve tubes (22); The boosting assembly (3) includes two guide tubes (31). The two guide tubes (31) are respectively slidably connected to the outer side wall of the connecting rod (21). Springs (35) are respectively connected to the opposite sides of the two guide tubes (31). The connecting assembly (4) is connected to the opposite ends of the two springs (35). Connecting tubes (32) are sleeved at the bottoms of the two guide tubes (31). A pneumatic spring rod (33) is connected to the outer side wall of the connecting tube (32). The end of the pneumatic spring rod (33) away from the connecting tube (32) is hinged inside the rail (11) and is located at the end position of the rail (11). A baffle (34) is installed inside the rail (11) and on the side of the pneumatic spring rod (33); The connecting assembly (4) includes a groove body (41) and a fixing block (42). The groove body (41) and the fixing block (42) are respectively connected to the opposite ends of the two connecting rods (21). And the fixing block (42) is inserted into the groove body (41). A fixing bolt (43) is threadedly connected to the top of the groove body (41). The bottom end of the fixing bolt (43) extends into the fixing block (42); The supporting assembly (5) includes a micro electric push rod (51). The micro electric push rod (51) is installed at the bottom of the groove body (41). A supporting plate (52) is installed on the piston rod of the micro electric push rod (51). The supporting plate (52) is horizontally arranged. A guide plate (53) is installed on the top of the supporting plate (52).

2. A high-strength square refrigerator drawer guide link mechanism according to claim 1, characterized in that: The locking assemblies (6) are two groups, and each locking assembly (6) includes a plurality of teeth (61). The plurality of teeth (61) are respectively installed on the outer side wall of the bottom end of the guide tube (31). A wedge block (62) is arranged inside the connecting tube (32). An inclined portion (63) is arranged on one side of the wedge block (62). The inclined portion (63) is in contact with the arc surface of the tooth (61). One end of the wedge block (62) is connected to the stretching assembly (7).

3. The high-strength square refrigerator drawer guide rail link mechanism according to claim 2, characterized in that: The stretching assembly (7) includes two bumpers (74). The two bumpers (74) are arranged corresponding to the teeth (61) in the two groups of locking assemblies (6). One end of the bumper (74) extends into the corresponding connecting tube (32) and is connected to the corresponding wedge block (62). A pulling rope (71) is connected to the outer side wall of the bumper (74). The end of the pulling rope (71) away from the bumper (74) is connected to a sliding seat (72). The top of the sliding seat (72) is slidably connected to the bottom of the support plate (52). A pull rod (73) is connected to the front end of the sliding seat (72). Two arc portions (75) are symmetrically arranged at the bottom end of the support plate (52). The outer side wall of the pulling rope (71) is in contact with the arc portion (75).

4. The high-strength square refrigerator drawer guide rail link mechanism according to claim 1, characterized in that: A first drawer (8) is connected between the two connecting plates (13). The top of the guide plate (53) is attached to the middle of the bottom surface of the first drawer (8).

5. The high-strength square refrigerator drawer guide rail link mechanism according to claim 1, characterized in that: Two second drawers (9) are connected between the two connecting plates (13). The bottom ends of the two second drawers (9) and the ends close to each other are attached to the top of the support plate (52). The guide plate (53) is located between the two second drawers (9).

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