Refrigerating appliance

Abstract

The utility model relates to a refrigeration appliance which comprises a box body, a guide rail system and a storage unit, a first guide rail assembly comprises a first rack arranged in the movement direction of the first guide rail assembly and a first gear meshed with the first rack to rotate; the second guide rail assembly comprises a second rack arranged in the moving direction of the second guide rail assembly and a second gear meshed with the second rack to rotate. The rail system further includes a locking member adapted to provide locking of the rod with at least one of the first gear and the second gear; the locking piece comprises an operation portion and a locking portion, and the locking piece can brake the locking portion through the operation portion to generate displacement in the axial direction of the rod so as to execute locking and / or unlocking operation. According to the refrigerator, the assembly efficiency of the refrigerator and the user experience can be improved.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly to a refrigeration appliance. Background Art

[0002] Storage containers such as refrigeration appliances are formed in household appliances and are selectively opened and closed by users. It is known in the art that such storage containers for household appliances can be installed in the internal space of household appliances in a synchronized manner through a rail system.

[0003] Such a rail system may have a pair of relatively oriented rail units, which have telescopic slide rail units to move the storage container in and out. In any case, the movements of the two slide rail units must be synchronized with each other, otherwise the storage container will tilt or twist, which may cause damage to the rail system.

[0004] In the prior art, in a rack and pinion system arranged in a rail system for synchronizing the movement of slide rail units, synchronization is achieved by meshing a pinion at the end of a synchronizing rod with a rack. However, since the synchronizing rod and the pinion are usually connected by screws, the assembly operation is relatively complex, affecting the disassembly and assembly efficiency; on the other hand, there is a gap between the synchronizing rod and the gear shaft, and the transmission of movement during the movement is unstable, resulting in noise and shaking of the container, affecting the user experience. Summary of the Invention

[0005] Based on this, in view of the above problems, it is necessary to provide a new refrigeration appliance, a refrigeration appliance, which includes: a box body having a storage chamber with an opening at the front side; a rail system including a first rail assembly and a second rail assembly oppositely arranged on two side walls of the storage chamber, and a rod for interconnecting the first rail assembly and the second rail assembly to transmit movement to each other; a storage unit, the storage unit being slidably disposed in the storage chamber through the rail system; wherein,

[0006] The first rail assembly includes: a first rack arranged along its movement direction, and a first gear meshing and rotating with the first rack; the second rail assembly includes: a second rack arranged along its movement direction, and a second gear meshing and rotating with the second rack; the rail system further includes: a locking member, the locking member being adapted to provide locking of the rod with at least one of the first gear and the second gear; the locking member includes an operating portion and a locking portion, and the locking member can brake the locking portion through the operating portion to generate a displacement along the axial direction of the rod so as to perform locking and / or unlocking operations. Thus, by operating the handheld operating portion to brake the locking portion to generate a displacement along the axial direction of the rod, the locking of the rod and the gear is achieved. Since the axial direction of the rod has a larger operating space than the radial direction, there is no need to perform time-consuming screw-tightening operations, which is convenient for workers to operate by hand and improves the assembly efficiency.

[0007] Further, the locking portion includes two oppositely arranged hooks, and an assembling portion cooperating with the hooks is arranged on the rod. This is beneficial to more reliably clamping the first gear and / or the second gear to the rod to restrict their axial movement, and is conducive to reducing the relative shaking between the two.

[0008] Further, a pre-set portion for holding the locking member on the rod before assembly is arranged on the rod. This is beneficial to prevent the accessories from falling off before assembly and affecting the assembly efficiency.

[0009] Further, the locking portion is formed as a cantilever structure on one side of the operating portion. In this way, it is beneficial for the locking portion to deform under the braking of the operating portion to generate a displacement in the axial direction of the rod to facilitate the disassembly and assembly of the locking member.

[0010] Further, the rod includes an assembling surface for assembling the locking member, and the assembling surface is inclined upward relative to the horizontal plane. Further optimizing the assembling direction of the locking member is beneficial for operation.

[0011] Further, the first gear includes a first gear portion meshing with the first rack and a first connecting portion connected to one end of the rod, the second gear includes a second gear portion meshing with the second rack and a second connecting portion connected to the other end of the rod, and the extending length of the first connecting portion along its axial direction is less than the extending length of the second connecting portion along its axial direction. Through the gear connecting portions with different lengths, it is beneficial for the misaligned installation of the rod during assembly, and there is no need to force the sliding rail provided with the gear to deform.

[0012] Further, the first connecting portion includes a first enclosing portion, the second connecting portion includes a second enclosing portion, and the extending length of the second enclosing portion along its axial direction is less than the extending length of the second enclosing portion along its axial direction. Enclosing and limiting the circumferential surface of the rod by the first enclosing portion and the second enclosing portion is beneficial for limiting and holding the moving rod. At the same time, the extending length of the second enclosing portion along its axial direction is less than the extending length of the first enclosing portion along its axial direction, optimizing the length of the connecting portion while ensuring the strength to facilitate reducing the noise generated by movement.

[0013] Further, the distance between one end of the rod and the first end of the first connecting portion is greater than the distance between the other end of the rod and the second end of the second connecting portion. Optimizing the assembling distance of the rod is beneficial for improving the movement stability of the rod and reducing the noise generated by movement.

[0014] Further, the second connecting portion includes a second enclosing portion and an assembling section communicating with the second enclosing portion, and the extending length of the assembling section along its axial direction is greater than the extending length of the second enclosing portion along its axial direction. On the one hand, configuring a longer assembling section is beneficial to providing an assembling space for the locking member. On the other hand, the assembling section also helps to hold the rod, so that the rod is not easily disengaged from the second connecting portion during the assembling process.

[0015] Further, the first enclosing portion and the second enclosing portion are configured as hollow columns and match the contour shape of the rod, the end of the rod is configured as non-circular, and the first enclosing portion and the second enclosing portion are configured with insertion holes matching the shape of the non-circular end of the rod. It is beneficial to stably transmit the torque generated by the movement of the gear on the rack through the rod. Further, at least one holding portion extending towards the axis is provided on the wall surface of the first enclosing portion. The holding portion is beneficial to holding one end of the rod within the first enclosing portion and reducing the possibility of the rod shaking during movement.

[0016] Further, the assembling section is provided with an opening through which the rod can enter the second enclosing portion from the side of the second connecting portion. Transforming the assembling space of the rod from the axial part to the axial direction is beneficial to the assembly.

[0017] Further, a first clamping hole through which the locking portion passes is provided on the assembling section.

[0018] Further, the holding portion is formed as opposed elastic pieces extending from the opposite side walls of the first enclosing portion. When one end of the rod is inserted into the first connecting portion, the elastic pieces form a clamping force on the rod. The elastic pieces act on the outer wall of the rod, which is beneficial to reducing the possibility of the rod generating noise due to shaking during movement.

[0019] Further, the assembling section is configured integrally with the second enclosing portion, and the opening is configured as an open opening over the entire length of the assembling section.

[0020] Further, the holding portion is configured to be integrally formed with the first enclosing portion, and the holding portion tends to hold the rod within the first enclosing portion away from the first end. Transforming the assembling space of the rod from the axial part to the axial direction is beneficial to the assembly operation.

[0021] Further, when the rod is installed, the first clamping hole and any one of the holding portions are not in the same plane. It is beneficial to provide position-limiting from the outer surfaces in different directions, and further beneficial to reducing the shaking and noise of the rod during movement. Further, a position-limiting portion for restricting the rotation of the rod relative to the first enclosing portion and / or the second enclosing portion is configured on the first enclosing portion and / or the second enclosing portion, and a bayonet matching the position-limiting portion is provided on the rod.

[0022] Further, the cross-sectional shape of the rod is C-shaped, and the bayonet structure is a notch in the shape of a C.

[0023] Further, the bayonet is formed on the wall surface opposite to the assembly surface of the rod, and when the rod is assembled, it opens towards the lower rear of the storage chamber.

[0024] Further, a preset part or an assembly part for cooperating with the locking part is arranged on the assembly surface of the rod opposite to the bayonet.

[0025] Further, the limiting part includes a first convex part arranged on the inner wall of the first enclosing part, which matches the bayonet.

[0026] Further, the limiting part includes a second convex part arranged on the inner wall of the second enclosing part, which matches the bayonet.

[0027] Further, bayonets for cooperating with the limiting parts respectively located on the first enclosing part and the second enclosing part are arranged on the rod.

[0028] Further, the assembly part and / or the preset part is configured to include a second card hole for cooperating with the hook.

[0029] Further, the preset part and the assembly part are constructed on the same plane of the rod, and the assembly part is closer to the end of the rod than the preset part.

[0030] Further, a positioning column is constructed between the two hooks, and the positioning column cooperates with the positioning holes on the assembly part and / or the preset part.

[0031] Further, the first guide rail assembly includes a first fixed rail, a first sliding rail sliding relative to the first fixed rail, the first gear is rotatably connected to the first sliding rail, the second guide rail assembly includes a second fixed rail, a second sliding rail sliding relative to the second fixed rail, the second gear is rotatably connected to the second sliding rail, and during the process of installing the rod, there is no force deformation process for the first sliding rail and / or the second sliding rail.

[0032] Further, the first rack is relatively fixed to the first fixed rail and is located below one side of the first sliding rail, and the second rack is relatively fixed to the second fixed rail and is located below one side of the second sliding rail. Description of the Drawings

[0033] Figure 1 is a perspective view of a refrigeration appliance with a storage unit according to the present utility model, wherein the storage unit is pulled out;

[0034] Figure 2 is Figure 1Stereogram of the middle storage unit after being disassembled;

[0035] Figure 3 is Figure 1 Another stereogram of the middle storage unit in the waiting - assembly position without the locking part installed;

[0036] Figure 4 Top - view of the gear and rod assembly observed obliquely from top to bottom;

[0037] Figure 5 is along Figure 4 Cross - sectional view taken along line A - A in

[0038] Figure 6 Stereogram of the first gear;

[0039] Figure 7 Stereogram of the second gear;

[0040] Figure 8 Stereogram of the locking part;

[0041] Figure 9 Stereogram of the rod. Detailed implementation manners

[0042] To make the above - mentioned objects, features and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0043] In the present application, unless otherwise clearly specified and limited, if terms such as "installation", "connection", "linkage", "fixation" appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in the present application can be understood according to specific situations.

[0044] Refer to Figure 1 , Figure 1The perspective view of a refrigerating appliance with a storage unit according to the present utility model is shown. Its structure has a cabinet 10, which generally includes an inner liner, an outer shell, and insulating and heat-insulating materials located between the inner liner and the outer shell. In this application, the outer shell and the insulating and heat-insulating materials are not shown. The cabinet 10 is configured with a storage chamber 20 having an opening 11 on the front side, and the storage chamber 20 provides a cooling space 12. A storage unit 30 is provided in the storage chamber 20, and the storage unit 30 is slidably arranged in the storage chamber 20.

[0045] Among them, the storage unit 30 can be a storage container completely located in the storage chamber 20, or a drawer door assembly that closes the front-side opening of the storage chamber. The drawer door assembly includes a storage box.

[0046] Guide rail systems 40 for pulling and / or pushing the storage unit 30 in and out of the storage chamber 20 are provided on the two opposite side walls 20a, 20b of the storage chamber 20. The guide rail system 40 includes a first guide rail assembly 40a and a second guide rail assembly 40b that are opposed to each other on the two side walls 20a, 20b, and a rod 50 provided between the first guide rail assembly 40a and the second guide rail assembly 40b.

[0047] Figure 2 is Figure 1 the perspective view after the storage unit in Figure 3 is Figure 1 the perspective view in another direction when the storage unit in Figure 2 and 3 as shown, the first guide rail assembly 40a includes a first fixed rail 42a, a first sliding rail 43a that slides relative to the first fixed rail 42a, and a first rack 41a arranged along the movement direction of the first sliding rail 43a. A first gear 430 that meshes and rotates with the first rack 41a is provided on the first sliding rail 43a.

[0048] The second guide rail assembly 40b includes a second fixed rail 42b, a second sliding rail 43b that slides relative to the second fixed rail 42b, and a second rack 41b arranged along the movement direction of the second sliding rail 43b. A second gear 440 that meshes and rotates with the second rack 41b is provided on the second sliding rail 43b.

[0049] The rod 50 is used to interconnect the first gear 430 and the second gear 440 to transmit motion to each other, which is beneficial to reducing the shaking caused by asynchrony during the movement of the drawer.

[0050] The guide rail system 40 also includes a locking member 60, which is suitable for providing locking between the rod and at least one of the first gear 430 and the second gear 440; the locking member 60 includes an operating part 61 and a locking part 62, and the locking member 60 can brake the locking part 62 through the operating part 61 to produce an axial displacement along the rod 50, thereby performing a locking or unlocking operation of the gear and the rod.

[0051] Therefore, the operator operates the hand-held operating part 61 to brake the locking part 62 to generate a displacement along the axial direction of the rod 50, thereby locking the rod and the gear. Since the axial direction of the rod 50 has a larger operating space than the radial direction, there is no need for time-consuming screw tightening operations, which is convenient for workers to operate with their bare hands and improves assembly efficiency.

[0052] In a specific embodiment, the first rack 41a and the second rack 41b are fixed relative to the first fixed rail 42a and the second fixed rail 42b, respectively, and are located below the opposite side surfaces of the first sliding rail 43a and the second sliding rail 43b, respectively. Figure 4 As shown, further, for the convenience of assembly, the rod 50 is provided with a pre-set portion 54 for holding the locking member 60 on the rod 50 before assembly, and the pre-set portion 54 can be designed as holes 541, 542, 543 that cooperate with the locking portion 62. This is also helpful to prevent the accessories from falling off before assembly and affecting the assembly efficiency.

[0053] In one embodiment of the present application, Figure 5 As shown, the locking portion 62 includes two hooks 621 arranged opposite to each other, and the rod 50 is provided with an assembly portion 53 that cooperates with the hooks 621. The first gear 430 and / or the second gear 440 are more reliably fixed to the rod 50 through the hooks 621 arranged opposite to each other to limit their axial movement and reduce the relative shaking between the two. Further, the locking portion 62 can be formed as a cantilever structure on one side of the operating portion 61. In this way, the operating portion 61 can be operated more easily to cause the locking portion 62 to produce a relative displacement to facilitate the disassembly and assembly of the locking member 60.

[0054] In one embodiment of the present invention, Figure 6-7 As shown, the first gear 430 includes a first connection portion 432 connected to one end 51 of the rod 50 and a first gear portion 431 located at one end of the first connection portion 432, and the second gear 440 includes a second connection portion 442 connected to the other end 52 of the rod 50 and a second gear portion 441 located at one end of the second connection portion 442. The extension length of the first connection portion 432 along its axial direction is less than the extension length of the second connection portion 442 along its axial direction. Gear connection portions of different lengths are used to facilitate the misalignment of the rod 50 during assembly, and there is no need to forcefully deform the sliding rail on which the gear is fixed, which also avoids the situation where the synchronization rod falls off due to deformation of the sliding rail.

[0055] Further, the first connecting portion 432 includes a first enclosing portion 433, the second connecting portion includes a second enclosing portion 445, and the axial extension length of the second enclosing portion 445 is less than the axial extension length of the first enclosing portion 433.

[0056] In this way, it is beneficial to limit and hold the moving rod by enclosing and limiting the circumferential surface of the rod through the first enclosing portion and the second enclosing portion. At the same time, the axial extension length of the second enclosing portion 445 is less than the axial extension length of the first enclosing portion 433, which optimizes the length of the connecting portion while ensuring strength to facilitate reducing the noise generated by movement.

[0057] At this time, the distance between one end 51 of the rod and the first end 434 of the first connecting portion 432 is greater than the distance between the other end 52 of the rod 50 and the second end 444 of the second connecting portion 442. Optimizing the assembly distance of the rod is beneficial to improving the movement stability of the rod and reducing the noise generated by movement.

[0058] The first end 434 refers to the end of the first connecting portion 432 that is connected to the first gear portion 431, and the second end 444 refers to the end of the first connecting portion 432 that is connected to the second gear portion 441. It can be understood that the first end 434 and the second end 444 form a limit on the end of the rod to prevent the rod from passing through one side of the first connecting portion 432 or the second connecting portion 442. However, the first end 434 and the second end 444 can be closed or unclosed.

[0059] Further, the second connecting portion 442 includes a second enclosing portion 445 and an assembly section 443 communicating with the second enclosing portion 445. The axial extension length of the assembly section 443 is greater than the axial extension length of the second enclosing portion 445. On the one hand, configuring a longer assembly section 443 is beneficial to providing an assembly space for the locking member. On the other hand, the assembly section 443 also helps to hold the rod 50, so that the rod 50 does not easily come out of the second connecting portion 442 during the assembly process.

[0060] As Figure 6 and 7 shown, the first enclosing portion 433 is configured as a hollow columnar shape, which includes a jack for one end 51 of the rod 50 to be inserted therein. The second enclosing portion 445 is configured as a hollow columnar shape, which includes a jack for the other end 52 of the rod 50 to be inserted therein. The first enclosing portion 433 matches the contour shape of one end 51 of the rod, and the second enclosing portion 445 matches the contour shape of the other end 52 of the rod. Moreover, the two ends of the rod 50 are configured as non-circular shapes. In this way, it is beneficial to stably transmit the torque generated by the movement of the gear on the rack through the rod.

[0061] Further, at least one holding portion 435 extending along the axis of the first enclosing portion 433 is provided on the wall surface of the first enclosing portion 433. The holding portion 435 is conducive to holding one end 51 of the rod 50 within the first enclosing portion 433, reducing the possibility of the rod 50 shaking relative to the first connecting portion 432.

[0062] Furthermore, referring to the appendix Figure 6 , the holding portion 435 is formed as a pair of elastic pieces 436 extending from the opposite side walls of the first enclosing portion 433. When one end 51 of the rod is inserted into the first connecting portion 432, the elastic pieces act on the outer wall of the rod 50 to form elastic clamping of the rod, which is conducive to further reducing the possibility of the rod 50 shaking during movement.

[0063] In one embodiment, the holding portion 435 is configured to be integrally formed with the first enclosing portion 433, and the holding portion 435 tends to hold the rod 50 within the first enclosing portion 433 away from the first end 434 of the first connecting portion 432. For example, the holding portion 435 is designed as an elastic piece 436 with a free end inclined towards the axis of the first enclosing portion 433, which is conducive to cooperating with the locking member 60 to limit the movement of the rod 50 in its axial direction.

[0064] As shown in the appendix Figure 7 , the assembly section 443 of the second connecting portion 442 is configured to be integrally formed with the second enclosing portion 445, and an opening 446 is provided in the assembly section 443 for the rod 50 to enter the second enclosing portion 445 from the side of the second connecting portion 442. Transforming the assembly space of the rod from an axial part to an axial direction is conducive to assembly.

[0065] Further, the assembly section 443 is configured to be integrally formed with the second enclosing portion 445, and the opening 446 is configured as an open opening over the entire length of the assembly section 443, which is conducive to the assembly of the rod 50 and the second connecting portion 442.

[0066] As Figure 7 shown, a first card hole 447 for the locking portion 62 to pass through is provided on the assembly section 443. The locking portion passes through the first card hole 447 on the assembly section 443 and is fixedly connected to the assembly portion 53 on the rod 50. Thereby restricting the relative movement between the second connecting portion 442 and the rod 50.

[0067] Further, in a specific embodiment, when the rod 50 is installed, the plane where the first card hole 447 is located is not coplanar with the plane where any holding portion 435 is located. Thus, the locking member 60 and the holding portion 435 provide limit to the rod from the outer surfaces in different directions, which is further conducive to reducing the shaking and noise of the rod during movement.

[0068] As Figure 6 and 7As shown, a limiting portion for restricting the rotation of the rod 50 relative to the first enclosing portion 433 is formed on the first enclosing portion 433, and / or a limiting portion for restricting the rotation of the rod 50 relative to the second enclosing portion 433 is formed on the second enclosing portion 433. The limiting portion cooperates with the bayonet 55 to facilitate the torque transmission of the rod.

[0069] In a preferred embodiment, bayonets 55 are provided on the rod 50 to cooperate with the limiting portions 437 and 449. The positions of the limiting portion 437 on the first enclosing portion 433 and the limiting portion 449 on the second enclosing portion 445 correspond to each other, so that after assembly, the two limiting portions can share the bayonet 55 on the rod 50, which is beneficial to the production and manufacture of the rod and the determination of the installation position.

[0070] In a specific embodiment, the cross-sectional shape of the rod 50 is C-shaped, and the bayonet 55 is formed as a C-shaped notch, which is beneficial to the manufacture and assembly of the rod.

[0071] In a preferred embodiment, the bayonet 55 is formed on the wall surface opposite to the assembly surface 56 of the rod 50 and opens towards the lower rear of the storage room 20 when the rod 50 is assembled, so that the assembly angle of the rod 50 is conducive to the assembly operation.

[0072] Furthermore, a preset portion 54 or an assembly portion 53 for cooperating with the locking member 60 is provided on the wall surface of the rod opposite to the bayonet 55. Thereby, the connection strength between the rod and the gear can be ensured.

[0073] In a specific embodiment, the limiting portions 437 and 449 may include a first convex portion 437 formed on the inner wall of the first enclosing portion 433 and / or a second convex portion 449 formed on the inner wall of the second enclosing portion 445. The first convex portion 437 and / or the second convex portion 449 cooperate with the bayonet. By optimizing the component cooperation structure, it is beneficial to the manufacture and assembly of the three components.

[0074] As Figure 9 shown, the assembly portion 53 and / or the preset portion 54 on the rod 50 are configured to include second card holes 531 and 541 for cooperating with the hooks 621. Thus, the rod and the gear are tightly clamped by the hooks to prevent the two from moving axially and radially.

[0075] In a preferred embodiment, the preset portion 54 and the assembly portion 53 are constructed on the same plane of the rod, and the assembly portion 53 is closer to the end of the rod 50 than the preset portion 54. This is beneficial to the retention and installation of the locking member 60.

[0076] As Figure 8 shown, a positioning post 64 is formed between the two hooks 621, and the positioning post 64 cooperates with the positioning holes 532 and 542 on the assembly portion 53 and / or the preset portion 54.

[0077] The positioning portion 64 can also extend towards one side of the operation portion 61 to form the main body portion 63, and is connected between the operation portion 61 and the locking portion 62 through the arm 65. Among them, the arm 65 is closer to the operation portion 61 to form a lever structure, which is conducive to the easy operation of the locking member 60.

[0078] In the present utility model, first, the first sliding rail 43a and the second sliding rail 43b are pulled to the outermost position. At this time, the first gear 430 and the second gear 440 respectively roll along the first sliding rail 43a and the second sliding rail 43b to the front sides of the first rack 41a and the second rack 41b. When installing the mounting rod 50, first place the bayonet of the rod 50 inclined downward, insert one end 51 into the first connecting portion 432 of the first gear 430, then assemble the other end 52 of the rod 50 into the bayonet 446 of the assembling section 443 of the second connecting portion 442. Subsequently, move the rod 50 towards the second enclosing portion 445 and insert it into the second enclosing portion 445 until its second end 444. Then, operate the operation portion 61 to brake the locking portion 62 to generate a displacement in the axial direction of the rod 50 so that the locking member 60 is removed from the preset portion 54 and installed on the assembling portion 53 to lock the rod and the gear. During the installation process of the rod 50, the first sliding rail 43a and / or the second sliding rail 43b do not undergo a force deformation process, and there is no need for the rotational operation of screwing the screw, nor is there a need to worry about the dropping of the locking member, which is conducive to improving the assembly efficiency.

[0079] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0080] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A refrigeration appliance, comprising: The box body (10) has a storage chamber (20) with a front opening. The guide rail system (40) comprises a first guide rail assembly (40a) and a second guide rail assembly (40b) which are arranged opposite to each other on two side walls of the storage chamber (20), and a rod (50) which interconnects the first guide rail assembly (40a) and the second guide rail assembly (40b) to transmit motion to each other. A storage unit (30), the storage unit (30) being drawable and arranged in the storage chamber (20) via the guide rail system (40), wherein: The first guide rail assembly (40a) comprises: a first rack (41a) arranged along its moving direction, and a first gear (430) meshing and rotating with the first rack (41a); the second guide rail assembly (40b) comprises: a second rack (41b) arranged along its moving direction, and a second gear (440) meshing and rotating with the second rack (41b); the characteristics are: The guide rail system (40) further comprises: a locking member (60), wherein the locking member (60) is adapted to provide locking between the rod (50) and at least one of the first gear (430) and the second gear (440); the locking member (60) comprises an operating portion (61) and a locking portion (62), and the locking member (60) can brake the locking portion (62) through the operating portion (61) to generate a displacement along the axial direction of the rod (50), thereby performing a locking and / or unlocking operation.

2. The refrigeration appliance according to claim 1, characterized in that: The locking portion (62) comprises two hooks (621) arranged opposite to each other, and the rod (50) is provided with an assembly portion (53) cooperating with the hooks (621); and / or The rod (50) is provided with a pre-set portion (54) for holding the locking member (60) on the rod (50) before assembly; and / or The locking portion (62) is formed in a cantilevered structure on one side of the operating portion (61); and / or The rod (50) comprises a mounting surface (56) for mounting the locking member (60), and the mounting surface (56) is inclined upward relative to a horizontal plane.

3. The refrigeration appliance according to claim 1, characterized in that: The first gear (430) includes a first gear portion (431) meshed with the first rack (41a) and a first connecting portion (432) connected to one end (51) of the rod (50); the second gear (440) includes a second gear portion (441) meshed with the second rack (41b) and a second connecting portion (442) connected to the other end (52) of the rod (50); an extension length of the first connecting portion (432) along its axial direction is smaller than an extension length of the second connecting portion (442) along its axial direction, wherein: The first connecting portion (432) includes a first enclosing portion (433), the second connecting portion (442) includes a second enclosing portion (445), and an extending length of the second enclosing portion (445) along its axial direction is shorter than an extending length of the second enclosing portion (445) along its axial direction; and / or The distance between one end (51) of the rod (50) and the first end (434) of the first connecting portion (432) is greater than the distance between the other end (52) of the rod (50) and the second end (444) of the second connecting portion (442); and / or The second connecting portion comprises a second enclosure portion (445) and an assembly section (443) connected to the second enclosure portion (445), and the axial extension length of the assembly section (443) is greater than the axial extension length of the second enclosure portion (445).

4. The refrigeration appliance according to claim 3, characterized in that: The first enclosure (433) and the second enclosure (445) are configured as hollow columns and match the contour shape of the rod (50); the ends of the rod (50) are configured as non-circular shapes; the first enclosure (433) and the second enclosure (445) are configured with sockets that match the shapes of the two ends of the non-circular rod (50); and / or At least one retaining portion (435) extending in the axial direction is provided on the wall surface of the first enclosing portion (433); and / or The assembly section (443) is provided with an opening (446) for allowing the rod (50) to enter the second enclosing portion (445) from the side of the second connecting portion (442); and / or The assembly section (443) is provided with a first locking hole (447) for the locking portion (62) to pass through.

5. The refrigeration appliance according to claim 4, characterized in that: The retaining portion (435) is formed as opposed elastic sheets (436) extending from opposite side walls of the first enclosure portion (433), and when one end (51) of the rod (50) is inserted into the first connecting portion (432), the elastic sheets (436) clamp the rod (50), and / or The assembly section (443) is constructed to be integral with the second enclosure (445), and the opening (446) is constructed to be an open opening over the entire length of the assembly section (443); and / or The retaining portion (435) is configured to be integrally formed with the first enclosure (433), and the retaining portion (435) tends to retain the rod (50) in the first enclosure (433) away from the first end (434); and / or When the rod (50) is installed, the first clamping hole (447) and any of the retaining portions (435) are not located in the same plane.

6. The refrigeration appliance according to any one of claims 3 to 5, characterized in that: A limiting portion for limiting the rotation of the rod (50) relative to the first enclosing portion (433) and / or the second enclosing portion (445) is constructed on the first enclosing portion (433) and / or the second enclosing portion (445), and a bayonet (55) for cooperating with the limiting portion is provided on the rod (50).

7. The refrigeration appliance according to claim 6, characterized in that: The cross-sectional shape of the rod (50) is C-shaped, and the bayonet (55) is configured as a C-shaped notch; and / or The bayonet (55) is formed on a wall surface opposite to the assembly surface (56) of the rod (50), and is opened toward the lower rear of the storage chamber (20) when the rod (50) is assembled; and / or A pre-set portion (54) or a mounting portion (53) cooperating with the locking member (60) is provided on the mounting surface (56) of the rod (50) opposite to the bayonet (55); and / or The limiting portion comprises a first protrusion (437) arranged on the inner wall of the first enclosing portion (433), which matches the bayonet (55); and / or The limiting portion comprises a second protrusion (449) arranged on the inner wall of the second enclosing portion (445), which matches the bayonet (55); and / or The rod (50) is provided with a bayonet (55) which cooperates with the limiting portions respectively located on the first enclosing portion (433) and the second enclosing portion (445).

8. The refrigeration appliance according to claim 2, characterized in that: The assembly portion (53) and / or the pre-set portion (54) are configured to include a second latch hole (531, 541) that cooperates with the latch hook (621); and / or The pre-set portion (54) and the assembly portion (53) are constructed on the same plane of the rod, and the assembly portion (53) is closer to the end of the rod (50) than the pre-set portion (54); and / or A positioning column (64) is constructed between the two hooks (621), and the positioning column (64) cooperates with the positioning holes (532, 542) on the assembly portion (53) and / or the pre-set portion (54).

9. The refrigeration appliance according to any one of claims 1 to 5, 7 to 8, characterized in that: The first guide rail assembly (40a) includes a first fixed rail (42a), a first sliding rail (43a) sliding relative to the first fixed rail (42a), and the first gear (430) is rotatably connected to the first sliding rail (43a). The second guide rail assembly (40b) includes a second fixed rail (42b), a second sliding rail (43b) sliding relative to the second fixed rail (42b), and the second gear (440) is rotatably connected to the second sliding rail (43b). During the installation of the rod (50), the first sliding rail (43a) and / or the second sliding rail (43b) are not subjected to stress and deformation.

10. The refrigeration appliance according to claim 9, characterized in that: The first rack (41a) is relatively fixed to the first fixed rail (42a) and is located below one side of the first sliding rail (43a), and the second rack (41b) is relatively fixed to the second fixed rail (42b) and is located below one side of the second sliding rail (43b).

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