Push rod mechanism and refrigerator

Abstract

According to the push rod mechanism and the refrigerator, the push rod mechanism comprises a push rod box and a motor assembly, the push rod box is installed on the lower base in a drawing mode, the push rod box comprises a box cover plate, and the box cover plate can abut against the lower base and is used for limiting the insertion depth of the push rod box when the push rod box is inserted into the lower base; the box cover plate can be detachably connected to the lower base; the motor assembly is installed in the push rod box and comprises a push rod, and the push rod can penetrate through the box cover plate, extends outwards and is used for pushing the refrigerator door. In this way, the push rod box can be assembled and connected on the lower base, the push rod mechanism can be disassembled or replaced on the lower base when the refrigerator is in the vertical state, and follow-up maintenance or replacement of the push rod mechanism can be facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field related to refrigerators, and particularly relates to a push rod mechanism and a refrigerator. Background Art

[0002] The push rod mechanism is usually assembled on the lower base of the refrigerator to push up the refrigerator door in a closed state and realize the function of automatically opening the refrigerator door.

[0003] At present, the existing push rod mechanism is usually fixed to the lower base by screwing screws from top to bottom, so that the screws are located at the bottom of the push rod mechanism, and the gap between the push rod mechanism and the ground supporting the refrigerator is very small, which cannot provide sufficient working space. This makes it impossible to disassemble or replace the push rod mechanism on the lower base when the refrigerator is in a vertical state, which makes it inconvenient to subsequently repair or replace the automatic door opening structure of the refrigerator. Utility Model Content

[0004] In view of this, it is necessary to provide a push rod mechanism and a refrigerator for solving the above-mentioned technical problems.

[0005] A push rod mechanism is detachably mounted on a lower base of a refrigerator and is used to push up a refrigerator door of the refrigerator. The push rod mechanism comprises:

[0006] A push rod box is installed on the lower base in a pull-out manner, and the push rod box includes a box cover plate, and the box cover plate can abut against the lower base to limit the insertion depth of the push rod box when it is inserted into the lower base;

[0007] A motor assembly is installed in the push rod box, and the motor assembly includes a push rod, which can pass through the box cover and extend outward to push the refrigerator door;

[0008] Wherein, the box cover can be detachably connected to the lower base.

[0009] It can be understood that the detachable connection between the upper box cover and the lower base of the push rod box is used to realize the assembly connection of the push rod box on the lower base, so that the push rod mechanism can be disassembled or replaced on the lower base when the refrigerator is in the vertical state, which can facilitate the subsequent maintenance or replacement of the push rod mechanism.

[0010] In one embodiment, the push rod mechanism further includes a connecting member, which can pass through the box cover and be connected to the lower base, so as to fix the push rod box to the lower base.

[0011] It can be understood that a connector passing through the box cover is used to realize a detachable connection between the box cover and the lower base, so that the connector is located at the front of the push rod box, with a sufficiently large working space to disassemble and assemble the connector, which facilitates the disassembly and assembly between the box cover and the lower base.

[0012] In one embodiment, the connecting member is configured as a screw or a bolt.

[0013] It is understandable that the connecting member is configured as a screw or a bolt so that the connecting member can be made of local materials, which reduces the cost and facilitates the disassembly and assembly of the push rod box on the lower base.

[0014] In one embodiment, the push rod box further comprises a box body, the motor assembly is installed in the box body, and the box cover is arranged on the box body and connected to the box body;

[0015] Wherein, the box body is provided with a guide member on one end away from the box cover plate, and the guide member can be slidably matched with the lower base to guide the push rod box to be inserted into the lower base.

[0016] It is understandable that the push rod box is guided into the lower base by the sliding fit between the guide member and the lower base, which can improve the accuracy of the position of the push rod box when assembled in the lower base, so as to facilitate the subsequent assembly connection between the box cover and the lower base.

[0017] In one embodiment, there are multiple guide members, and the multiple guide members are arranged in sequence and spaced apart along the width direction of the box body.

[0018] In one embodiment, the guide member is configured as a convex rib formed on the box body.

[0019] In one embodiment, the motor assembly further includes a motor and a transmission unit, wherein the transmission unit is respectively connected to the motor and the ejection rod in a transmission manner so as to control the telescopic movement of the ejection rod driven by the motor;

[0020] Wherein, the rotation center line of the rotating shaft on the motor is arranged perpendicular to the center line of the ejector rod.

[0021] In one embodiment, a plurality of motor mounting portions are formed on the push rod box, and the plurality of motor mounting portions are sequentially spaced apart along the center line of the push rod;

[0022] Wherein, each of the motor mounting parts can accommodate the motor respectively.

[0023] It can be understood that the multiple motor mounting parts formed on the push rod box are used to accommodate the motors respectively, so that the push rod box can be compatible with different motor components to meet the use requirements of opening the door at different angles.

[0024] In one embodiment, a buffer member is provided on the ejection rod, and the ejection rod can push the refrigerator door through the buffer member.

[0025] It can be understood that, by utilizing the structural characteristics of the buffer member, the push rod can play a buffering role when pushing the refrigerator door, avoiding the push rod and the refrigerator door from colliding head-on, which can not only reduce the noise when the refrigerator door automatically opens, but also prevent the refrigerator door from being structurally damaged due to the pushing of the push rod.

[0026] In addition, the present application also seeks protection for a refrigerator, comprising a lower base and the above-mentioned push rod mechanism, wherein the push rod mechanism is detachably mounted on the lower base.

[0027] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0028] The push rod mechanism and refrigerator for which protection is sought in the present application use a connector that passes through the box cover to achieve assembly of the push rod box on the lower base, so that the connector is located at the front of the push rod box, with a sufficiently large working space for disassembling and assembling the connector, so that the push rod mechanism can be disassembled or replaced on the lower base when the refrigerator is in a vertical state, which facilitates subsequent maintenance or replacement of the push rod mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a schematic structural diagram of a push rod mechanism provided in one embodiment of the present application.

[0031] Figure 2 A schematic structural diagram of another state of the push rod mechanism provided in one embodiment of the present application.

[0032] Figure 3 This is a schematic diagram of the structure of the push rod mechanism provided in this application when installed on the lower base.

[0033] Figure 4 This is a schematic diagram of the partial structure from another perspective when the push rod mechanism provided in this application is installed on the lower base.

[0034] Figure numerals: 100, push rod mechanism; 10, push rod box; 101, motor mounting portion; 11, box cover; 12, box body; 13, guide member; 131, convex rib; 20, motor assembly; 21, push rod; 211, buffer member; 22, motor; 23, transmission unit; 30, connecting member; 200, lower base; 201, guide hole. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] The push rod mechanism 100 for which protection is requested in the present application is detachably mounted on the lower base 200 of the refrigerator, and is used to push up the refrigerator door (not shown) of the refrigerator and realize the function of automatically opening the refrigerator door.

[0039] like Figures 1 to 3As shown, the push rod mechanism 100 provided in an embodiment of the present application includes a push rod box 10 and a motor assembly 20. The push rod box 10 is installed on the lower base 200 in a pull-out manner. The push rod box 10 includes a box cover plate 11. The box cover plate 11 can abut against the lower base 200 to limit the insertion depth of the push rod box 10 when inserted into the lower base 200, and the box cover plate 11 can be detachably connected to the lower base 200; the motor assembly 20 is installed in the push rod box 10, and the motor assembly 20 includes a push rod 21. The push rod 21 can pass through the box cover plate 11 and extend outward to push the refrigerator door. That is to say, the push rod box 10 is assembled to the lower base 200 in the manner of a drawer pull-out, and when the push rod box 10 is retracted into the lower base 200, the push rod mechanism 100 uses a detachable connection between the box cover plate 11 located at the front of the lower base 200 and the lower base 200 to realize the assembly connection of the push rod mechanism 100 on the lower base 200.

[0040] It can be understood that the detachable connection between the upper box cover 11 of the push rod box 10 and the lower base 200 is used to realize the assembly connection of the push rod box 10 on the lower base 200, so that the push rod mechanism 100 can be disassembled or replaced on the lower base 200 when the refrigerator is in the vertical state, which can facilitate the subsequent maintenance or replacement of the push rod mechanism 100.

[0041] like Figure 1 , Figure 2 As shown, the push rod box 10 also includes a box body 12, the motor assembly 20 is installed in the box body 12, and the box cover 11 is arranged on the box body 12 and connected to the box body 12; wherein, the box body 12 is provided with a guide member 13 at one end away from the box cover 11, and the guide member 13 can be slidably matched with the lower base 200, and is used to guide the push rod box 10 to insert into the lower base 200. That is to say, during the insertion of the push rod box 10 into the lower base 200, the sliding match between the guide member 13 and the lower base 200 can be used for guidance, so that the accuracy of the position of the push rod box 10 when assembled in the lower base 200 can be improved, so as to facilitate the subsequent assembly connection between the box cover 11 and the lower base 200. Here, the box body 12, the box cover 11 and the guide member 13 are connected as one body, and can be specifically integrally injection molded by injection molding.

[0042] like Figures 1 to 3 As shown, the number of guide members 13 is multiple, and the multiple guide members 13 are arranged in sequence along the width direction of the box body 12. Here, the number of guide members 13 is configured as four, two in a group, and the two groups of guide members 13 are arranged on the box body 12 in a bilaterally symmetrical manner, wherein the guide members 13 are configured as convex ribs 131 formed on the box body 12. Of course, in other embodiments, the number of guide members 13 is also configured as two, five, or even more. It should be noted that, as Figure 4As shown, a guide hole 201 matching the guide member 13 is provided on the lower base 200, and the plug-in configuration between the guide member 13 and the guide hole 201 is utilized to guide the push rod box 10 when it is inserted into the lower base 200. Of course, the structural shape of the guide member 13 can be specifically set according to the requirements of use, which will not be elaborated here.

[0043] like Figure 1 , Figure 2 As shown, a buffer 211 is provided on the ejector rod 21, and the ejector rod 21 can push the refrigerator door through the buffer 211, so that the ejector rod 21 can use the buffer 211 for buffering when pushing the refrigerator door, so as to avoid the ejector rod 21 and the refrigerator door from colliding hard, which can not only reduce the noise when the refrigerator door is automatically opened, but also prevent the refrigerator door from being damaged due to the pushing of the ejector rod 21. Here, the buffer 211 is configured as a rubber sleeve or a silicone sleeve, and the buffer 211 is assembled to the ejector rod 21 in a set manner.

[0044] like Figure 1 , Figure 2 As shown, the motor assembly 20 also includes a motor 22 and a transmission unit 23, and the transmission unit 23 is respectively connected to the motor 22 and the ejector rod 21 to control the telescopic movement of the ejector rod 21 driven by the motor 22; wherein the rotation center line of the rotating shaft (not shown) of the motor 22 is arranged perpendicular to the center line of the ejector rod 21. That is to say, when the motor assembly 20 is working, the motor 22 can drive the telescopic movement of the ejector rod 21 under the transmission of the transmission unit 23. Here, the transmission unit 23 is configured as a transmission gear (not shown), which is sleeved on the ejector rod 21 and threadedly connected to the ejector rod 21, and the transmission gear is meshed with a driving wheel (not shown) provided on the rotating shaft of the motor 22. Of course, in other embodiments, the transmission unit 23 can also be configured as a worm gear. It should be noted that the working principle of how the motor assembly 20 is assembled in the ejector box 10 and how to realize the opening and closing control of the motor 22 when working can adopt the existing conventional method, which will not be elaborated here.

[0045] like Figure 1 , Figure 2 As shown, a plurality of motor mounting portions 101 are formed on the push rod box 10, and the plurality of motor mounting portions 101 are sequentially arranged at intervals along the center line of the push rod 21; and each motor mounting portion 101 can accommodate a motor 22. In other words, the installation position of the motor 22 in the motor assembly 20 is changed when it is assembled in the push rod box 10, so that the push rod box 10 can be compatible with different motor assemblies 20 to meet the use requirements of opening the door at different angles. Here, the number of motor mounting portions 101 is configured as two, and the motor mounting portion 101 is configured as a groove formed on the box body 12 of the push rod box 10.

[0046] like Figure 3 As shown, the push rod mechanism 100 further includes a connecting member 30, which can pass through the box cover 11 and be connected to the lower base 200, and is used to fix the push rod box 10 to the lower base 200. In other words, the push rod box 10 can be detachably connected to the lower base 200 by the connecting member 30, wherein the connecting member 30 is located at the front part of the push rod box 10, and has a sufficiently large working space to disassemble and assemble the connecting member 30, so that the disassembly and assembly between the box cover 11 and the lower base 200 can be facilitated.

[0047] The connecting member 30 is configured as a screw or a bolt, so that the connecting member 30 can be made of local materials, which has the effect of reducing costs and facilitating the disassembly and assembly of the push rod box 10 on the lower base 200. Of course, in other embodiments, the box cover 11 can also be directly assembled and connected with the lower base 200 in a buckle manner. It should be noted that in order to improve the stability of the push rod box 10 when it is assembled and connected on the lower base 200, the box cover 11 can be fixed to the lower base 200 by the connecting members 30 located on both sides of the box cover 11.

[0048] In addition, the present application also claims protection for a refrigerator, comprising a lower base 200 and the above-mentioned push rod mechanism 100, wherein the push rod mechanism 100 is detachably mounted on the lower base 200. It should be noted that the structure of the lower base 200 can adopt the conventional method of the existing refrigerator with automatic door opening function, which will not be elaborated here.

[0049] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A push rod mechanism, detachably mounted on a lower base (200) of a refrigerator, for pushing up a refrigerator door of the refrigerator, characterized in that: The push rod mechanism (100) comprises: A push rod box (10) is installed on the lower base (200) in a pull-out manner, and the push rod box (10) comprises a box cover (11), and the box cover (11) can abut against the lower base (200) and is used to limit the insertion depth of the push rod box (10) when it is inserted into the lower base (200); A motor assembly (20) is installed in the push rod box (10), and the motor assembly (20) includes a push rod (21). The push rod (21) can pass through the box cover (11) and extend outward to push the refrigerator door. Wherein, the box cover (11) can be detachably connected to the lower base (200).

2. The push rod mechanism according to claim 1, characterized in that: The push rod mechanism (100) further comprises a connecting member (30), wherein the connecting member (30) can pass through the box cover (11) and be connected to the lower base (200), so as to fix the push rod box (10) to the lower base (200).

3. The push rod mechanism according to claim 2, characterized in that: The connecting member (30) is configured as a screw or a bolt.

4. The push rod mechanism according to claim 1, characterized in that: The push rod box (10) further comprises a box body (12), the motor assembly (20) is installed in the box body (12), and the box cover (11) is arranged on the box body (12) and connected to the box body (12); Wherein, the box body (12) is provided with a guide member (13) on one end away from the box cover (11), and the guide member (13) can be slidably matched with the lower base (200) to guide the push rod box (10) to be inserted into the lower base (200).

5. The push rod mechanism according to claim 4, characterized in that: The number of the guide members (13) is plural, and the guide members (13) are arranged in sequence and at intervals along the width direction of the box body (12).

6. The push rod mechanism according to claim 4, characterized in that: The guide member (13) is configured as a convex rib (131) formed on the box body (12).

7. The push rod mechanism according to claim 1, characterized in that: The motor assembly (20) further comprises a motor (22) and a transmission unit (23), wherein the transmission unit (23) is respectively connected to the motor (22) and the ejector rod (21) in a transmission manner so as to control the telescopic movement of the ejector rod (21) driven by the motor (22); Wherein, the rotation center line of the rotating shaft on the motor (22) is arranged perpendicular to the center line of the ejector rod (21).

8. The push rod mechanism according to claim 7, characterized in that: A plurality of motor mounting portions (101) are formed on the push rod box (10), and the plurality of motor mounting portions (101) are sequentially spaced apart along the center line of the push rod (21); Wherein, each of the motor mounting parts (101) is capable of accommodating the motor (22).

9. The push rod mechanism according to claim 1, characterized in that: The ejection rod (21) is provided with a buffer member (211), and the ejection rod (21) can push the refrigerator door through the buffer member (211).

10. A refrigerator, characterized in that: It comprises a lower base (200) and a push rod mechanism (100) according to any one of claims 1 to 9, wherein the push rod mechanism (100) is detachably mounted on the lower base (200).

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