Drawer limiting structure on refrigerator

Abstract

The invention relates to the technical field of household appliances, in particular to a drawer limiting structure on a refrigerator, which realizes limiting buffering, guide sliding, access and extraction of a drawer and reminding that the drawer is about to be in a complete extraction state through limiting rod groups arranged on two sides of the tail end of the drawer and matching of corresponding drawer rails and limiting grooves in a refrigerator liner. Normal insertion and extraction of the drawer are achieved through the access section of the drawer rail, limiting and buffering during drawer extraction and reminding that the drawer is about to be in a complete extraction state are achieved through the buffer section, and normal sliding extraction of the drawer is achieved through the guide section. And accidents caused by the fact that the drawer is carelessly and completely drawn out in the drawing process of the drawer are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to a drawer limiting structure on a refrigerator. Background Art

[0002] As a main household appliance, the refrigerator is used very frequently in daily life. Inside the refrigerator, the open area and the independent area are divided by partitions and drawers. Different food materials that need to be fresh-keeping or refrigerated are separately stored in each drawer to prevent odor mixing. Most refrigerator drawers complete the access of food by pushing and pulling actions. During the process of pulling and pushing the drawer, it is generally not completely pulled out. However, due to people often not paying attention to the pulling force and the pulling length during use, the drawer accidentally slides out and falls off, thus injuring the legs and feet and causing damage to the drawer and the internal items.

[0003] Therefore, a limiting structure for the refrigerator drawer is needed to prevent the drawer from being overly pulled out and falling off and to remind people that the drawer is about to be completely pulled out. Summary of the Invention

[0004] To solve the above technical problems.

[0005] The present application provides a drawer limiting structure on a refrigerator, which is arranged on both sides of the end of the drawer and is slidably connected to the drawer rails on both sides of the refrigerator liner. The limiting structure includes: a limiting rod group for connecting the corresponding drawer rails inside the liner and a rod sleeve for connecting the limiting rod group and the drawer. The limiting rod group is sleeved in the rod sleeve, and the limiting rod group is slidably connected to the corresponding drawer rail through a limiting groove. The limiting groove is opened on the drawer rail and divides the drawer rail into an access section, a buffer section, and a guiding section according to the trajectory of the limiting groove. The cooperation between the limiting rod group and the limiting groove is used to complete the pulling and pushing limit of the drawer. The normal insertion and extraction of the drawer are realized through the access section of the drawer rail, the limiting buffer during the pulling and pushing of the drawer and the reminder that the drawer is about to be completely pulled out are realized by the buffer section, and the normal sliding pulling of the drawer is realized by the guiding section.

[0006] As a further description of the above technical solution: The limiting rod group includes a main limiting rod and a secondary limiting rod. The main limiting rod is inserted into the rod sleeve and both ends extend out of the rod sleeve to be connected to the end of the drawer. The main limiting rod is connected to the lower end of the rod sleeve through a main limiting spring. The main limiting spring is sleeved on the lower end of the main limiting rod and both ends respectively abut against the rod sleeve and the main limiting rod. The secondary limiting rod is inserted into the upper end of the main limiting rod. Both the main limiting rod and the secondary limiting rod are slidably connected to the limiting groove of the corresponding drawer rail.

[0007] As a further description of the above technical solution: The secondary limiting rod is connected to the main limiting rod through a secondary limiting spring. The secondary limiting spring is arranged in the middle of the main limiting rod through an installation groove. Both ends of the secondary limiting spring respectively abut against the main limiting rod and the secondary limiting rod.

[0008] As a further description of the above technical solution: A spring piece is connected between the rod sleeve and the main limit rod. The upper end of the spring piece is connected to the rod sleeve through a pin opening. The pin opening is formed on the rod sleeve and faces the upper end of the spring piece. The lower end of the spring piece is clamped on the main limit rod through a clamping plate. The spring piece is slidably connected to the lower end of the secondary limit rod.

[0009] As a further description of the above technical solution: The spring piece is connected to the lower end of the secondary limit rod through a tapered head. The tapered head is fixedly arranged at the lower end of the secondary limit rod, and the tapered head is connected to the spring piece through a square head ring. The square head ring is fixedly arranged at the top of the spring piece. The tapered head extends into the square head ring and is slidably connected thereto.

[0010] As a further description of the above technical solution: A contact head is arranged at the tip of the tapered head. The two ends of the secondary limit spring are respectively connected to the contact head and the clamping plate of the spring piece. The clamping plate is inserted into the main limit rod through a bayonet opening.

[0011] As a further description of the above technical solution: Wave grooves are arranged on the buffer section of the drawer rail. The top of the secondary limit rod can be slidably connected to the wave grooves. When the drawer is pulled out or pushed in, when the drawer slides to the buffer section, the secondary limit rod makes continuous slight knocking sounds under the cooperation of the secondary limit spring and the wave grooves to remind that the drawer is in a state of about to be pulled out at this time.

[0012] As a further description of the above technical solution: A positioning groove is arranged at one end of the guiding section of the drawer rail away from the buffer section. The positioning groove can be abutted against the secondary limit rod. When the drawer is about to be completely inserted into the inner box of the refrigerator, due to the trajectory change of the limiting groove on the drawer rail, at this time the drawer rail presses against the main limit rod and the secondary limit rod, causing the main limit rod and the secondary limit rod to slide downward. The lower end of the main limit rod begins to abut against the lower drawer rail to increase friction. And when the secondary limit rod slides below the positioning groove, the secondary limit spring bounces the secondary limit rod into the positioning groove.

[0013] The beneficial effects of the present invention compared with the prior art are:

[0014] 1. This application aims to solve the technical problem that people often do not pay attention to the pulling force and the pulling length when pulling out or pushing in the refrigerator drawer, resulting in the accidental sliding out and falling off of the drawer, thus injuring the legs and feet and causing damage to the drawer and the internal items. The present invention realizes the limit buffering, guiding sliding, access and extraction of the drawer, as well as the reminder when the drawer is about to be in a completely pulled-out state through the limit rod group arranged on both sides of the end of the drawer and the cooperation of the corresponding drawer rail and the limit groove in the inner box of the refrigerator. The normal insertion and extraction of the drawer are realized through the access section of the drawer rail, the limit buffering during the pulling of the drawer and the reminder when the drawer is about to be in a completely pulled-out state are realized by the buffer section, and the normal sliding extraction of the drawer is realized by the guiding section. It avoids the occurrence of accidents caused by the drawer being carelessly completely pulled out during the pulling process of the drawer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0016] Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ;

[0017] Figure 3 Side view of the present invention;

[0018] Figure 4 Schematic diagram of the structure of the box liner and drawer rail of the present invention;

[0019] Figure 5 Schematic diagram of the three-dimensional structure of the limit rod group of the present invention;

[0020] Figure 6 Exploded view of the present invention;

[0021] Figure 7 Cross-section of the limit rod group of the present invention Figure 1 ;

[0022] Figure 8 Cross-section of the limit rod group of the present invention Figure 2 。

[0023] The reference numerals in the figure are: 1 - drawer; 2 - box liner; 3 - drawer rail; 4 - limit rod group; 5 - rod sleeve; 6 - limit groove; 41 - main limit rod; 42 - secondary limit rod; 43 - main limit spring; 44 - secondary limit spring; 45 - spring plate; 31 - wave groove; 32 - positioning groove; 411 - installation groove; 412 - bayonet; 421 - tapered head; 422 - abutting head; 451 - clamping plate; 452 - square head ring; 51 - pin hole. Detailed implementation manners

[0024] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0025] As Figures 1 to 4 shown, the following preferred technical solutions are provided:

[0026] A drawer limiting structure on a refrigerator, which is arranged on both sides of the end of the drawer 1 and is slidably connected to the drawer rails 3 on both sides of the refrigerator liner 2. The limiting structure includes: a limiting rod group 4 for connecting the corresponding drawer rails 3 inside the liner 2 and a rod sleeve 5 for connecting the limiting rod group 4 and the drawer 1. The limiting rod group 4 is sleeved inside the rod sleeve 5, and the limiting rod group 4 is slidably connected to the corresponding drawer rail 3 through a limiting groove 6. The limiting groove 6 is opened on the drawer rail 3 and divides the drawer rail 3 into an access section, a buffer section, and a guiding section according to the trajectory of the limiting groove 6. The cooperation between the limiting rod group 4 and the limiting groove 6 is used to complete the pulling and limiting of the drawer 1. The normal insertion and extraction of the drawer 1 are realized through the access section of the drawer rail 3, the limiting buffer during the pulling of the drawer 1 and the reminder that the drawer 1 is about to be in a fully pulled-out state are realized by the buffer section, and the normal sliding extraction of the drawer 1 is realized by the guiding section.

[0027] Specifically, in order to solve the technical problem that people often do not pay attention to the pulling force and the pulling length during the process of pulling the refrigerator drawer 1, resulting in the accidental sliding out and falling off of the drawer 1, thus injuring the legs and feet and causing damage to the drawer 1 and the internal items. The present invention realizes the limiting buffer, guiding sliding, access and extraction of the drawer 1, and the reminder that the drawer 1 is about to be in a fully pulled-out state through the limiting rod group 4 arranged on both sides of the end of the drawer 1 and the cooperation of the corresponding drawer rail 3 and the limiting groove 6 inside the refrigerator liner 2. The normal insertion and extraction of the drawer 1 are realized through the access section of the drawer rail 3, the limiting buffer during the pulling of the drawer 1 and the reminder that the drawer 1 is about to be in a fully pulled-out state are realized by the buffer section, and the normal sliding extraction of the drawer 1 is realized by the guiding section. It avoids the occurrence of accidents caused by the careless full extraction of the drawer 1 during the pulling process of the drawer 1.

[0028] As Figures 1 to 8 shown, the following preferred technical solutions are provided:

[0029] The limiting rod group 4 includes a main limiting rod 41 and a secondary limiting rod 42. The main limiting rod 41 is inserted into the rod sleeve 5 and both ends extend out of the rod sleeve 5 to be connected to the end of the drawer 1. The main limiting rod 41 is connected to the lower end of the rod sleeve 5 through a main limiting spring 43. The main limiting spring 43 is sleeved on the lower end of the main limiting rod 41 and both ends respectively abut against the rod sleeve 5 and the main limiting rod 41. The secondary limiting rod 42 is inserted into the upper end of the main limiting rod 41. Both the main limiting rod 41 and the secondary limiting rod 42 are slidably connected to the limiting groove 6 of the corresponding drawer rail 3.

[0030] The secondary limiting rod 42 is connected to the main limiting rod 41 through a secondary limiting spring 44. The secondary limiting spring 44 is arranged in the middle of the main limiting rod 41 through an installation groove 411. Both ends of the secondary limiting spring 44 respectively abut against the main limiting rod 41 and the secondary limiting rod 42.

[0031] A spring piece 45 is connected between the rod sleeve 5 and the main limit rod 41. The upper end of the spring piece 45 is connected to the rod sleeve 5 through a pin hole 51. The pin hole 51 is formed in the rod sleeve 5 and faces the upper end of the spring piece 45. The lower end of the spring piece 45 is clamped on the main limit rod 41 through a clamping plate 451. The spring piece 45 is slidably connected to the lower end of the secondary limit rod 42.

[0032] The spring piece 45 is connected to the lower end of the secondary limit rod 42 through a tapered head 421. The tapered head 421 is fixedly arranged at the lower end of the secondary limit rod 42, and the tapered head 421 is connected to the spring piece 45 through a square head ring 452. The square head ring 452 is fixedly arranged at the top of the spring piece 45. The tapered head 421 extends into the square head ring 452 and is slidably connected thereto.

[0033] A contact head 422 is arranged at the tip of the tapered head 421. The two ends of the secondary limit spring 44 are respectively connected to the contact head 422 and the clamping plate 451 of the spring piece 45. The clamping plate 451 is inserted into the main limit rod 41 through a bayonet 412.

[0034] Wave grooves 31 are arranged on the buffer section of the drawer rail 3. The top of the secondary limit rod 42 can be slidably connected to the wave grooves 31. When the drawer 1 is pulled out, when the drawer 1 slides to the buffer section, the secondary limit rod 42 makes continuous slight knocking sounds under the cooperation of the secondary limit spring 44 and the wave grooves 31 to remind that the drawer 1 is in a state of about to come out at this time.

[0035] A positioning groove 32 is arranged at one end of the guiding section of the drawer rail 3 away from the buffer section. The positioning groove 32 can be abutted against the secondary limit rod 42. When the drawer 1 is about to be completely inserted into the inner liner 2, due to the trajectory change of the limit groove 6 on the drawer rail 3, at this time the drawer rail 3 presses against the main limit rod 41 and the secondary limit rod 42, causing the main limit rod 41 and the secondary limit rod 42 to slide downward. The lower end of the main limit rod 41 begins to abut against the lower drawer rail 3 to increase friction. And when the secondary limit rod 42 slides below the positioning groove 32, the secondary limit spring 44 bounces the secondary limit rod 42 up and into the positioning groove 32.

[0036] As Figures 1 to 8 shown, the following preferred technical solutions are provided:

[0037] Embodiment 1: When the drawer 1 is not placed in the refrigerator, the state of the limit structure of the drawer 1 is as follows. First, under the action of the main limit spring 43, the main limit rod 41 extends out of the rod sleeve 5 and is slightly higher than the drawer 1. The upper end of the spring piece 45 is clamped into the pin hole 51 of the rod sleeve 5. At the same time, under the action of the secondary limit spring 44, the secondary limit rod 42 and the tapered head 421 are bounced up and are slightly higher than the secondary limit rod 42.

[0038] Embodiment 2: When inserting the drawer 1, insert the drawer 1 from the access section of the drawer rail 3. First, the secondary limit rod 42 abuts against the limit groove 6. The secondary limit rod 42 pushes the conical head 421 downward. After the conical head 421 abuts against the square head ring 452, the square head ring 452 pulls the spring piece 45, and pulls the upper end of the spring piece 45 out of the pin hole 51. Subsequently, the main limit spring 43 springs up the main limit rod 41, and the main limit rod 41 starts to abut against the limit groove 6, completing the access of the drawer 1.

[0039] Embodiment 3: After the drawer 1 is completely inserted, continue to push the drawer 1. The limit rod group 4 starts to contact the buffer section of the drawer rail 3. At this time, the secondary limit rod 42 continues to move downward under the pressing of the drawer rail 3. The secondary limit rod 42, the conical head 421 and the abutting head 422 compress the secondary limit spring 44. Subsequently, the main limit rod 41 also moves downward under the pressing of the drawer rail 3 and compresses the main limit spring 43. The main limit rod 41 moves downward, and the lower end of the main limit rod 41 starts to contact the lower drawer rail 3. At this time, the sliding between the drawer 1 and the drawer rail 3 is subject to a certain resistance, completing the buffering. When the drawer 1 is about to be completely inserted into the cabinet liner 2, due to the trajectory change of the limit groove 6 on the drawer rail 3, at this time, the drawer rail 3 presses the main limit rod 41 and the secondary limit rod 42, causing the main limit rod 41 and the secondary limit rod 42 to slide downward. The lower end of the main limit rod 41 starts to abut against the lower drawer rail 3, increasing the friction. And when the secondary limit rod 42 slides to below the positioning groove 32, the secondary limit spring 44 springs up the secondary limit rod 42 and abuts it into the positioning groove 32 to limit the position of the drawer 1.

[0040] Embodiment 4: When pulling out the drawer 1, the drawer 1 slides on the guiding section of the drawer rail 3, and the drawer 1 is in an incompletely pulled-out state, and the movement is not blocked; when the pulling-out amplitude is too large, the limit rod group 4 of the drawer 1 starts to abut against the buffer section of the drawer rail 3. The main limit rod 41 and the secondary limit rod 42 respectively abut tightly against the buffer section of the drawer rail 3 under the action of the main limit spring 43 and the secondary limit spring 44. The friction between the drawer 1 and the drawer rail 3 increases. At the same time, when the secondary limit rod 42 passes through the continuous wave grooves 31 at the buffer section, under the action of the secondary limit spring 44, the secondary limit rod 42 will continuously and slightly knock against the drawer rail 3 to remind that the drawer 1 is in a state of about to be disengaged at this time.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A drawer limit structure on a refrigerator, which is arranged on both sides of the end of the drawer (1) and is slidably connected to the drawer rails (3) on both sides of the refrigerator liner (2), and is characterized in that, The limiting structure includes a limiting rod group (4) for connecting to the corresponding drawer rail (3) inside the box liner (2) and a rod sleeve (5) for connecting the limiting rod group (4) and the drawer (1). The limiting rod group (4) is sleeved inside the rod sleeve (5). The limiting rod group (4) is slidably connected to the corresponding drawer rail (3) through a limiting groove (6). The limiting groove (6) is opened on the drawer rail (3), and the drawer rail (3) is divided into an access section, a buffer section, and a guiding section according to the trajectory of the limiting groove (6). The pulling and pushing of the drawer (1) are limited by the cooperation of the limiting rod group (4) and the limiting groove (6). The normal insertion and extraction of the drawer (1) are realized through the access section of the drawer rail (3). The limiting buffer during the pulling and pushing of the drawer (1) and the reminder when the drawer (1) is about to be in the fully extended state are realized by the buffer section. The normal sliding pulling of the drawer (1) is realized by the guiding section.

2. The drawer limit structure on a refrigerator according to claim 1, wherein The limiting rod group (4) includes a main limiting rod (41) and a secondary limiting rod (42). The main limiting rod (41) is inserted into the rod sleeve (5), and both ends extend out of the rod sleeve (5) and are connected to the end of the drawer (1). The main limiting rod (41) is connected to the lower end of the rod sleeve (5) through a main limiting spring (43). The main limiting spring (43) is sleeved on the lower end of the main limiting rod (41), and both ends respectively abut against the rod sleeve (5) and the main limiting rod (41). The secondary limiting rod (42) is inserted into the upper end of the main limiting rod (41). Both the main limiting rod (41) and the secondary limiting rod (42) are slidably connected to the limiting groove (6) of the corresponding drawer rail (3).

3. The drawer limit structure on a refrigerator according to claim 2, characterized in that, The secondary limiting rod (42) is connected to the main limiting rod (41) through a secondary limiting spring (44). The secondary limiting spring (44) is arranged in the middle of the main limiting rod (41) through an installation groove (411). Both ends of the secondary limiting spring (44) respectively abut against the main limiting rod (41) and the secondary limiting rod (42).

4. The drawer limit structure on a refrigerator according to claim 3, characterized in that A spring piece (45) is connected between the rod sleeve (5) and the main limiting rod (41). The upper end of the spring piece (45) is connected to the rod sleeve (5) through a pin hole (51). The pin hole (51) is opened on the rod sleeve (5) and is opposite to the upper end of the spring piece (45). The lower end of the spring piece (45) is clamped on the main limiting rod (41) through a clamping plate (451). The spring piece (45) is slidably connected to the lower end of the secondary limiting rod (42).

5. The drawer limiting structure on a refrigerator according to claim 4, characterized in that The spring piece (45) is connected to the lower end of the secondary limiting rod (42) through a conical head (421). The conical head (421) is fixedly arranged at the lower end of the secondary limiting rod (42), and the conical head (421) is connected to the spring piece (45) through a square head ring (452). The square head ring (452) is fixedly arranged at the top of the spring piece (45). The conical head (421) extends into the square head ring (452) and is slidably connected thereto.

6. The drawer limit structure on a refrigerator according to claim 5, wherein, The tip of the conical head (421) is provided with an abutting head (422). Both ends of the secondary limiting spring (44) are respectively connected to the abutting head (422) and the clamping plate (451) of the spring piece (45). The clamping plate (451) is inserted into the main limiting rod (41) through a bayonet (412).

7. The drawer limit structure on a refrigerator according to claim 1, characterized in that, A wave groove (31) is provided on the buffer section of the drawer rail (3), and the top of the secondary limit rod (42) can be slidably connected to the wave groove (31). When the drawer (1) is pulled out or pushed in, when the drawer (1) slides to the buffer section, the secondary limit rod (42) makes continuous slight knocking sounds under the cooperation of the secondary limit spring (44) and the wave groove (31) to remind that the drawer (1) is in a state of about to be disengaged at this time.

8. A drawer limit structure on a refrigerator according to claim 7, characterized in that, A positioning groove (32) is provided at one end of the guiding section of the drawer rail (3) away from the buffer section. The positioning groove (32) can be in contact with the secondary limit rod (42). When the drawer (1) is about to be completely inserted into the cabinet liner (2), due to the trajectory change of the limit groove (6) on the drawer rail (3), at this time, the drawer rail (3) presses against the main limit rod (41) and the secondary limit rod (42), causing the main limit rod (41) and the secondary limit rod (42) to slide downward. The lower end of the main limit rod (41) begins to contact the lower drawer rail (3) below to increase friction. And when the secondary limit rod (42) slides below the positioning groove (32), the secondary limit spring (44) bounces the secondary limit rod (42) up and into the positioning groove (32).

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