Multifunctional integrated hidden lock buckle for refrigerator foamed door

Abstract

The present application relates to the technical field of lock catch, and discloses a refrigerator foaming door multifunctional integrated concealed lock catch, which comprises a lock catch movable part installed on a refrigerator door body and a lock catch fixed part installed on a refrigerator main body, the lock catch movable part comprises a closed box, the closed box is installed inside the refrigerator door body, and the side and the front face of the closed box towards the lock catch fixed part are flush with the surface of the refrigerator door body, the lock catch fixed part is installed inside the refrigerator main body, and the front face of the closed box is provided with a panel; the lock catch movable part is embedded and installed on the refrigerator door body, so that the lock catch is installed in a concealed manner to improve the appearance, and the closed box and the panel of the lock catch movable part are matched, so that the lock catch position is designed in a closed manner, the influence of the foaming material of the refrigerator door body on the lock catch structure is avoided, a secret box is arranged on the lock catch movable part, the lock catch and the handle are integrally arranged to enhance the functionality, the lock catch improves the sealing degree of the refrigerator door body, and the door body is more convenient to open.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lock catch, more particularly to a multifunctional integrated hidden lock catch for a refrigerator foamed door. BACKGROUND

[0002] A refrigerator is a household appliance, and its main function is to store food and other items and keep them fresh and cold by refrigeration technology. The refrigerator door body usually adopts a foamed door body, which means that the door body part is made by foaming process in the refrigerator door body structure. The foamed layer provides good thermal insulation effect for the refrigerator door, which helps to reduce the heat exchange between the inside and outside of the refrigerator and improve the energy efficiency ratio of the refrigerator. However, problems may occur when the refrigerator door body is used, such as rebounding when the door body is closed, which may cause the door body to be unable to be completely closed. The traditional method is to install a door closer to assist in closing the door to prevent the door body from rebounding. However, problems are found in the use experience. Although the installation of the door closer can prevent the door body from rebounding to a certain extent, it cannot ensure the tightness between the door body and the refrigerator main body, that is, the door body and the refrigerator do not have sufficient tightness, which affects the sealing performance of the door body and reduces the thermal insulation effect. To solve this problem, a refrigerator door lock catch appears on the market, which strengthens the tightness between the door body and the refrigerator main body by installing a lock catch.

[0003] However, the traditional lock catch installed on the surface of the door body affects the overall aesthetics, and the refrigerator door needs to be unlocked when it is opened, which causes inconvenience to the door opening action and affects the user experience. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides a multifunctional integrated hidden lock catch for a refrigerator foamed door to solve the problems of lack of aesthetics of the refrigerator door with a traditional installed lock catch and inconvenience to the door opening action.

[0005] The present application provides the following technical scheme: a multifunctional integrated hidden lock catch for a refrigerator foamed door, comprising a lock catch movable part installed on the refrigerator door body and a lock catch fixed part installed on the refrigerator main body. The lock catch movable part comprises a closed box, which is installed inside the refrigerator door body and flush with the surface of the refrigerator door body on the side facing the lock catch fixed part and the front surface. The lock catch fixed part is installed inside the refrigerator main body. The front surface of the closed box is provided with a panel, and the panel is provided with a rotary control shaft core and a secret box extending into the closed box. The rotary control shaft core is fixedly connected with a lock hook on the output shaft. A slot is formed on one side of the closed box, and the lock hook passes through the slot and cooperates with the lock catch fixed part. The rotary control shaft core is used to control the turning of the lock hook.

[0006] The reversing transmission mechanism is arranged in the inside of the dark box, and the control end of the reversing transmission mechanism is arranged in the inside of the dark box and has the same active direction as the force direction of opening the refrigerator door.

[0007] Further, the reversing transmission mechanism comprises a rotating shaft and a supporting rod, end blocks are rotatably sleeved on the upper and lower ends of the rotating shaft, the two end blocks are fixedly connected at the back of the dark box, a push rod and an arm plate are fixedly connected to the side wall of the rotating shaft, a horizontal through slot is formed in the inner wall of the dark box and penetrates to the back, the push rod enters the inside of the dark box through the horizontal through slot and is connected with a pressing plate, a slide rail is arranged on the arm plate, a sliding block is slidably sleeved in the slide rail, connecting seats are rotatably sleeved at the two ends of the supporting rod, one connecting seat is fixedly connected at the bottom of the lock hook, and the other connecting seat is rotatably sleeved at the top of the sliding block through a knob.

[0008] Further, the panel comprises a main body plate, the main body plate is fixedly connected with a plug-in frame on the side facing the closed box, the plug-in frame is inserted into the inside of the closed box, positioning sliding strips are arranged at the top and bottom of the plug-in frame, inner blocks are arranged at the top and bottom of the inner wall of the closed box, positioning sliding grooves are arranged in the inner walls of the two inner blocks, and the two positioning sliding strips are slidably sleeved in the positioning sliding grooves on the two inner blocks.

[0009] Further, the main body plate is provided with an embedded block on the side facing the closed box, and the closed box is provided with an embedded groove matched with the embedded block.

[0010] Further, the rotation control shaft core comprises a cylinder shell, the cylinder shell is fixedly connected on the panel, a main shaft core is rotatably sleeved in the inner cavity of the cylinder shell, one end of the main shaft core extends to the front of the panel for controlling rotation, the other end extends to the inside of the closed box for connecting the lock hook, a cylindrical block is fixedly connected to the side wall of the main shaft core, a positioning sliding block is fixedly connected to the side wall of the cylindrical block, an annular groove is formed in the inner wall of the cylinder shell, the positioning sliding block is movably sleeved in the annular groove, and one end of the cylindrical block is in transmission connection with the inner wall of the cylinder shell through a torsional spring.

[0011] Further, the supporting rod is composed of an outer cylinder and an inner column, and the outer cylinder is slidably sleeved in the inner column.

[0012] Further, air holes are formed in the side wall of the outer cylinder and penetrate to the inner cavity of the outer cylinder, and the air holes are arranged at the bottom of the inner column.

[0013] Further, the lock catch fixing member comprises a U-shaped plate, a turnover plate is arranged in the U-shaped plate, the turnover plate is rotatably sleeved with a rotating column in the inner wall of the U-shaped plate, one end of the rotating column is drivingly connected with the inner wall of the U-shaped plate through a torsional spring, a limiting plate is fixedly connected with the inner wall of the U-shaped plate, the limiting plate abuts against one side of the turnover plate, and the limiting plate is used for limiting the counterclockwise turning of the turnover plate, and the side of the lock hook facing the turnover plate is provided as a slope.

[0014] Further, the reversing transmission mechanism is connected with an oil injection mechanism, the oil injection mechanism is composed of an oil tank and an oil pumping mechanism, the oil tank is used for storing liquid lubricating oil and is internally provided with a recovery space, the oil pumping mechanism is installed on the top of the oil tank and is linked with the arm plate, the oil inlet of the oil pumping mechanism is connected with the inside of the oil tank through an oil pipe a, the oil outlet of the oil pumping mechanism is connected with the inside of the rotating control shaft core through an oil pipe b, the angle turning of the arm plate is used for controlling the operation of the oil pumping mechanism, and the inside of the rotating control shaft core is connected with the recovery space in the oil tank through an oil pipe c.

[0015] Further, the oil pumping mechanism comprises a sealed barrel, a core rod is slidably sleeved in the sealed barrel, the top end of the core rod penetrates to the outside of the sealed barrel, and the bottom end of the sealed barrel and the top end of the core rod are movably sleeved with connecting heads through spherical joints, the two connecting heads are fixedly connected with the bottom of the arm plate and the top of the oil tank respectively, the side wall of the sealed barrel is provided with a one-way oil inlet and a one-way oil outlet, the one-way oil inlet is connected with the oil pipe a, and the one-way oil outlet is connected with the oil pipe b.

[0016] Technical effects and advantages of the present application:

[0017] The present application has the following advantages:

[0018] The lock catch is hidden and installed in the refrigerator door body, so that the appearance is improved, the closed box and the panel of the lock catch movable piece are matched, the lock catch position is designed in a closed mode, the influence of the foaming material of the refrigerator door body on the lock catch structure is avoided, a secret box is arranged on the lock catch movable piece, the lock catch and the handle are integrated to enhance the functionality, the sealing degree of the refrigerator door body is improved, and the door body is more convenient to open.

[0019] On the basis of the above, the oil tank, oil pumping mechanism, when through reversing transmission mechanism to unlock can produce linkage with oil pumping mechanism, through pumping oil tank inside lubricating oil and to the spin control shaft core inside oiling lubrication, effectively reduce the friction resistance when the spin control shaft core operation, make the unlock action more smooth;

[0020] In addition, through the structure of the lock catch movable piece, the lock hook can not only achieve the locking effect with the lock catch fixed piece, but also fix the connection between the closure box and the panel, which reduces the use of parts (screws and bolts) during installation and makes the panel disassembly more convenient and fast, facilitating the maintenance and replacement of the internal mechanism of the lock catch movable piece. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front view of the overall structure of the present application;

[0022] Figure 2 It is a schematic diagram of the installation position of the present application on the refrigerator;

[0023] Figure 3 It is an overall structure explosion schematic diagram of the present application;

[0024] Figure 4 It is a schematic diagram of the reversing transmission mechanism structure in the present application; Figure 3

[0025] Figure 5 It is a schematic diagram of the closure box and panel cross-sectional structure in the present application; Figure 3

[0026] Figure 6 It is a schematic diagram of the spin control shaft core structure in the present application; Figure 3

[0027] Figure 7 It is a schematic diagram of the support rod structure in the present application; Figure 4

[0028] Figure 8 It is a schematic diagram of the lock catch fixed piece cross-sectional structure in the present application; Figure 1

[0029] Figure 9 It is a schematic diagram of the internal parts structure of the closure box in the present application; Figure 3

[0030] Figure 10 It is a schematic diagram of the oil pumping mechanism structure in the present application. Figure 9

[0031] ​​​​​​​The reference signs are: 1, a lock movable part; 2, a lock fixed part; 11, a closed box; 12, a panel; 13, a rotary control shaft core; 14, a dark box; 15, a lock hook; 16, a slot; 17, a reversing transmission mechanism; 171, a rotating shaft; 172, an end block; 173, a push rod; 174, a pressing plate; 175, an arm plate; 176, a sliding block; 177, a knob; 178, a connecting seat; 179, a supporting rod; 111, an inner block; 121, a main body plate; 122, an insertion frame; 123, an embedded block; 124, a positioning sliding strip; 131, a cylinder shell; 132, a main shaft core; 133, a cylindrical block; 134, a torsional spring I; 135, a positioning sliding block; 1791, an outer cylinder; 1792, an inner column; 1793, a gas hole; 21, a U-shaped plate; 22, a turnover plate; 23, a rotating column; 24, a torsional spring II; 25, a limiting plate; 18, an oil tank; 19, an oil pumping and discharging mechanism; 191, a sealed barrel; 192, a core rod; 193, a spherical joint; 194, a connecting head; 195, a one-way oil inlet port; 196, a one-way oil discharge port. DETAILED DESCRIPTION

[0032] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0033] REFERENCE Figures 1-3 The present application provides a refrigerator foamed door multifunctional integrated hidden lock, which comprises a lock movable part 1 installed on the refrigerator door body and a lock fixed part 2 installed on the refrigerator main body, characterized in that: the lock movable part 1 comprises a closed box 11, which is installed inside the refrigerator door body and flush with the surface of the refrigerator door body on the side facing the lock fixed part 2 and the front face; the lock fixed part 2 is installed inside the refrigerator main body; the closed box 11 is provided with a panel 12 on the front face, and the panel 12 is provided with a rotary control shaft core 13 and a dark box 14 extending into the closed box 11; a lock hook 15 is fixedly connected to the output shaft of the rotary control shaft core 13; a slot 16 is formed on one side of the closed box 11, and the lock hook 15 passes through the slot 16 and cooperates with the lock fixed part 2; the rotary control shaft core 13 is used for controlling the turnover of the lock hook 15; a reversing transmission mechanism 17 is further arranged inside the closed box 11, and the control end of the reversing transmission mechanism 17 is arranged inside the dark box 14 and has the same active direction as the force direction for opening the refrigerator door; the output end of the reversing transmission mechanism 17 is butted with the lock hook 15; and the reversing transmission mechanism 17 is used for controlling the turnover of the lock hook 15.

[0034] The rotating control shaft core 13, the locking hook 15, the reversing transmission mechanism 17 and other movable parts are isolated by the closed box 11 to avoid the influence of the heat preservation foaming material in the refrigerator door body on the movement of the parts. The installation position of the lock catch movable part 1 and the lock catch fixed part 2 can avoid the structure from protruding and improve the aesthetics. When in use, the locking effect can be achieved by hooking the lock catch fixed part 2 with the locking hook 15. The unlocking operation can be controlled by the rotating control shaft core 13 to flip the locking hook 15 to separate the locking hook 15 from the lock catch fixed part 2 for unlocking. Another way is to insert the finger into the inside of the secret box 14 to pull and exert an opening force on the refrigerator door body. The force triggers the reversing transmission mechanism 17, which can also flip the locking hook 15 to unlock. That is, the lock catch can synchronize the opening action and the unlocking action to optimize the unlocking action and make the lock catch more convenient to use. The secret box 14 can achieve the handle effect, making it easier to exert force when opening the refrigerator door, and achieving the integration of the lock catch and the handle function.

[0035] With reference to Figure 4 The reversing transmission mechanism 17 includes a rotating shaft 171 and a support rod 179. End blocks 172 are rotatably connected to the upper and lower ends of the rotating shaft 171. The two end blocks 172 are fixedly connected to the back of the secret box 14. A push rod 173 and an arm plate 175 are fixedly connected to the side wall of the rotating shaft 171. A horizontal slot is formed in the inner wall of the secret box 14 and extends to the back. The push rod 173 enters the inside of the secret box 14 through the horizontal slot and is connected with a pressing plate 174. The arm plate 175 is provided with a sliding rail. A sliding block 176 is slidably connected in the sliding rail. Connection seats 178 are rotatably connected to the two ends of the support rod 179. One connection seat 178 is fixedly connected to the bottom of the locking hook 15. The other connection seat 178 is rotatably connected to the top of the sliding block 176 through a rotating knob 177. The support rod 179 is in an inclined state when the locking hook 15 is in the state of abutting against the lock catch fixed part 2.

[0036] When in use, the finger is inserted into the inside of the secret box 14 and contacts the pressing plate 174. Since the control direction of the reversing transmission mechanism 17 is the same as the opening direction of the refrigerator door, the pressing plate 174 moves under force when the door is opened. The rotating shaft 171 rotates under the connection of the push rod 173. At this time, the rotating shaft 171 drives the arm plate 175 to change the angle, thereby causing the support rod 179 to flip from the inclined state to the vertical state. Since the bottom end of the support rod 179 is limited by the arm plate 175, the top end of the support rod 179 gradually rises to drive the locking hook 15 to flip and disconnect from the lock catch fixed part 2, thereby achieving the synchronization effect of the opening action and the unlocking action.

[0037] With reference to Figure 5, panel 12 includes a main plate 121, the main plate 121 is fixedly connected with a plug frame 122 towards one side of the closed box 11, the plug frame 122 is inserted into the inside of the closed box 11, the plug frame 122 is provided with a positioning sliding strip 124 at the top and bottom, the inside wall of the closed box 11 is provided with an inner block 111 at the top and bottom, the inner wall of the two inner blocks 111 is provided with a positioning sliding groove, and the two positioning sliding strips 124 are slidably connected in the positioning sliding grooves on the two inner blocks 111.

[0038] The conventional way of installing the panel 12 on the closed box 11 is to connect through screws or bolts and the like accessories, however, this way will cause inconvenience in disassembly and maintenance, therefore the structure is improved, the plug frame 122 is inserted into the inside of the closed box 11 to limit the moving direction of the panel 12, at this time the panel 12 can only move forward and backward, since the lock hook 15 is penetrated by the slot 16, the forward and backward moving direction of the panel 12 is also limited, thereby achieving the connecting effect of the panel 12 on the closed box 11, when disassembling, the lock hook 15 is controlled by the rotary control shaft core 13 to be turned over by a large angle, so that the lock hook 15 is turned over to the inside of the closed box 11, at this time the forward and backward moving direction of the panel 12 is contacted and limited to achieve the effect of quick disassembly, through the cooperation of the positioning sliding strip 124 and the positioning sliding groove on the inner block 111, the stability of the panel 12 in the closed box 11 can be improved, and the shaking condition can be avoided.

[0039] Referring to Figure 5 , the main plate 121 is provided with an embedded block 123 towards one side of the closed box 11, and the closed box 11 is provided with an embedded groove matched with the embedded block 123.

[0040] When the panel 12 is fixed on the closed box 11 by the lock hook 15, the force of the lock hook 15 and the panel 12 moving outward (the force of the panel 12 moving outward from the inside of the closed box 11) is in opposition, which is easy to cause the turning resistance of the lock hook 15, in order to avoid this condition, the embedded block 123 and the embedded groove are matched, in the normal use state, the friction resistance of the embedded block 123 in the embedded groove is in opposition with the force of the panel 12 moving outward, at this time the lock hook 15 is not stressed, which prevents the turning of the lock hook 15 from being affected, and when the force of the panel 12 moving outward is too large under the influence of external force, the lock hook 15 is used to prevent the panel 12 from falling off.

[0041] Referring to Figure 6The rotation control shaft core 13 comprises a cylinder shell 131 fixedly connected to the panel 12, a main shaft core 132 rotatably sleeved in the inner cavity of the cylinder shell 131, the main shaft core 132 extending to the front of the panel 12 for rotation control and extending to the inside of the closed box 11 for connection with the lock hook 15, a cylindrical block 133 fixedly connected to the side wall of the main shaft core 132, a positioning sliding block 135 fixedly connected to the side wall of the cylindrical block 133, an annular groove formed in the inner wall of the cylinder shell 131, and the positioning sliding block 135 movably sleeved in the annular groove, and one end of the cylindrical block 133 being in transmission connection with the inner wall of the cylinder shell 131 through a torsional spring 134.

[0042] Since the lock hook 15 has a connecting effect on the closed box 11 and the panel 12, the rotation control shaft core 13 will be subjected to a pulling force, so that the main shaft core 132 is prone to sliding in the inner cavity of the cylinder shell 131. By matching the positioning sliding block 135 with the annular sliding groove, the axial positioning effect of the main shaft core 132 is achieved, and the tensile strength of the rotation control shaft core 13 is improved. In addition, after the lock hook 15 is unlocked by being flipped over, the lock hook 15 needs to be manually controlled to flip back to be locked, which leads to complex and inconvenient operation steps. By setting the torsional spring 134, the main shaft core 132 can be automatically rotated and reset, thereby automatically flipping and locking the lock hook 15, further improving the convenience.

[0043] With reference to Figure 7 , the support rod 179 is composed of an outer cylinder 1791 and an inner column 1792, and the outer cylinder 1791 is slidably sleeved in the inner column 1792.

[0044] When the rotation control shaft core 13 controls the lock hook 15 to flip to an angle that is too large, the reversing transmission mechanism 17 may limit the flipping of the lock hook 15. To avoid this situation, the support rod 179 is set to be telescopic, so that when the lock hook 15 is flipped to an angle that is too large, the length of the support rod 179 is extended, thereby avoiding the limitation of the reversing transmission mechanism 17 on the lock hook 15, so that the device can normally operate.

[0045] With reference to Figure 7 , the outer cylinder 1791 is provided with an air hole 1793 penetrating into the inner cavity of the outer cylinder 1791, and the air hole 1793 is arranged at the bottom of the inner column 1792.

[0046] By setting the air hole 1793, the pressure resistance of the inner cavity of the outer cylinder 1791 can be reduced when the support rod 179 is telescoped.

[0047] With reference to Figure 8The locking buckle fixing part 2 comprises a U-shaped plate 21, and a turnover plate 22 is arranged in the U-shaped plate 21. The turnover plate 22 is rotatably sleeved in the inner wall of the U-shaped plate 21 through a rotating column 23. One end of the rotating column 23 is in transmission connection with the inner wall of the U-shaped plate 21 through a torsional spring 24. The inner wall of the U-shaped plate 21 is fixedly connected with a limiting plate 25. The limiting plate 25 abuts against one side of the turnover plate 22. The limiting plate 25 is used for limiting the counterclockwise turning of the turnover plate 22. The side of the locking hook 15 facing the turnover plate 22 is provided as a slope.

[0048] The locking buckle is inconvenient to use. When locking, the locking hook 15 needs to be controlled to turn up through the rotating control shaft core 13 or the reversing transmission mechanism 17, and then the hooking effect with the locking buckle fixing part 2 can be formed. The side of the locking hook 15 is provided as a slope. When the slope of the locking hook 15 contacts the turnover plate 22, the locking hook 15 can form an upward turning force under the influence of the slope, so as to achieve the automatic buckling effect between the locking hook 15 and the locking buckle fixing part 2, and make the locking buckle more convenient to use. In addition, since the locking buckle is used on a refrigerator, the locking buckle fixing part 2 and the locking hook 15 may directly bear a large pulling force when the unlocking operation is not performed and the door is opened, which can easily cause damage to the parts. To avoid this situation, the turnover plate 22 is arranged to turn clockwise to cooperate with the locking hook 15. When the locking buckle fixing part 2 and the locking hook 15 are subjected to a large pulling force, the turnover plate 22 turns clockwise to be unhooked with the locking hook 15, so as to achieve the forced unlocking effect. The torsional spring 24 is arranged to make the turnover plate 22 turn to be unhooked when subjected to a large force, so as to avoid that the connection between the locking hook 15 and the locking buckle fixing part 2 is too loose.

[0049] Referring to Figure 9 The reversing transmission mechanism 17 is connected with an oil injection mechanism. The oil injection mechanism comprises an oil tank 18 and an oil pumping mechanism 19. The oil tank 18 is used for storing liquid lubricating oil and is internally provided with a recovery space. The oil pumping mechanism 19 is installed on the top of the oil tank 18 and is linked with an arm plate 175. The oil inlet of the oil pumping mechanism 19 is connected with the inside of the oil tank 18 through an oil pipe a. The oil outlet of the oil pumping mechanism 19 is connected with the inside of the rotating control shaft core 13 through an oil pipe b. The arm plate 175 is used for controlling the operation of the oil pumping mechanism 19 by turning. The inside of the rotating control shaft core 13 is connected with the recovery space in the oil tank 18 through an oil pipe c.

[0050] When the lock is unlocked and locked, the rotation control shaft core 13 inside needs to rotate, when the friction inside the rotation control shaft core 13 is too large, it is easy to affect the smoothness of the lock operation, the oil pumping mechanism 19 is arranged to be linked with the arm plate 175, when the unlocking operation is carried out through the reversing transmission mechanism 17, the arm plate 175 is turned over to drive the oil pumping mechanism 19 to operate, the lubricating oil in the oil tank 18 is pumped out through the oil pipe a, and then injected into the rotation control shaft core 13 through the oil pipe b, which can realize real-time lubrication of the rotation control shaft core 13. When the oil in the rotation control shaft core 13 is full, it is discharged and collected in the recovery space in the oil tank 18 through the oil pipe c.

[0051] Referring to Figure 10 , the oil pumping mechanism 19 comprises a sealed barrel 191, a core rod 192 is slidably sleeved in the sealed barrel 191, the top end of the core rod 192 penetrates to the outside of the sealed barrel 191, the bottom end of the sealed barrel 191 and the top end of the core rod 192 are movably sleeved with a connecting head 194 through a spherical joint 193, the two connecting heads 194 are fixedly connected with the bottom of the arm plate 175 and the top of the oil tank 18 respectively, the side wall of the sealed barrel 191 is provided with a one-way oil inlet 195 and a one-way oil outlet 196, the one-way oil inlet 195 is connected with the oil pipe a, and the one-way oil outlet 196 is connected with the oil pipe b.

[0052] When the arm plate 175 is turned over, one of the connecting heads 194 is displaced, so as to drive the sealed barrel 191 and the core rod 192 to change from the inclined state to the vertical state, at this time, the distance between the two connecting heads 194 is relatively reduced, so as to control the sliding of the core rod 192, and when the arm plate 175 returns to the original position, the core rod 192 also returns to the original position, so that the core rod 192 forms a piston movement in the sealed barrel 191, and the oil pumping effect is achieved.

[0053] The above shows and describes the basic principles, main features and advantages of the present application. The present application is not limited by the above examples, the above examples and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, which fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A refrigerator foamed door multifunctional integrated concealed lock buckle, comprising a lock buckle movable part (1) installed on the refrigerator door body and a lock buckle fixed part (2) installed on the refrigerator main body, characterized in that: The lock catch movable part (1) comprises a closed box (11) which is installed inside the refrigerator door body and flush with the surface of the refrigerator door body on the side and front face towards the lock catch fixed part (2), the lock catch fixed part (2) is installed inside the refrigerator main body, the closed box (11) is provided with a faceplate (12) on the front face, the faceplate (12) is provided with a rotary control shaft core (13) and a dark box (14) extending into the closed box (11), the output shaft of the rotary control shaft core (13) is fixedly connected with a lock hook (15), a strip slot (16) is formed on one side of the closed box (11), the lock hook (15) passes through the strip slot (16) and cooperates with the lock catch fixed part (2), the rotary control shaft core (13) is used for controlling the lock hook (15) to overturn. The closed box (11) is further provided with a reversing transmission mechanism (17), the control end of the reversing transmission mechanism (17) is arranged in the dark box (14), and the control end moving direction is the same as the opening door force direction of the refrigerator, the output end of the reversing transmission mechanism (17) is butted with the lock hook (15), and the reversing transmission mechanism (17) is used for controlling the lock hook (15) to overturn. The reversing transmission mechanism (17) comprises a rotating shaft (171) and a supporting rod (179), end blocks (172) are rotatably sleeved on the upper and lower ends of the rotating shaft (171), the two end blocks (172) are fixedly connected on the back of the dark box (14), the side wall of the rotating shaft (171) is fixedly connected with a push rod (173) and an arm plate (175), a horizontal through slot is formed in the inner wall of the dark box (14) and extends to the back, the push rod (173) enters the inside of the dark box (14) through the horizontal through slot and is connected with a pressing plate (174), the arm plate (175) is provided with a sliding rail, a sliding block (176) is slidably sleeved in the sliding rail, the supporting rod (179) is rotatably sleeved with connecting seats (178) at both ends, one connecting seat (178) is fixedly connected at the bottom of the lock hook (15), the other connecting seat (178) is rotatably sleeved on the top of the sliding block (176) through a knob (177), and the supporting rod (179) is in an inclined state in the butt joint state of the lock hook (15) and the lock catch fixed part (2).

2. The refrigerator foamed door multifunctional integrated hidden lock according to claim 1, characterized in that: The faceplate (12) comprises a main body plate (121), the main body plate (121) is fixedly connected with an insertion frame (122) on one side towards the closed box (11), the insertion frame (122) is inserted into the inside of the closed box (11), the insertion frame (122) is provided with positioning sliding strips (124) on the top and bottom, the inner walls of the top and bottom of the closed box (11) are provided with inner blocks (111), the inner walls of the two inner blocks (111) are provided with positioning sliding grooves, and the two positioning sliding strips (124) are slidably sleeved in the positioning sliding grooves on the two inner blocks (111).

3. The refrigerator foamed door multifunctional integrated hidden lock according to claim 2, characterized in that: The main body plate (121) is provided with an embedded block (123) on one side towards the closed box (11), and the closed box (11) is provided with an embedded groove matched with the embedded block (123).

4. The refrigerator foamed door multifunctional integrated hidden lock according to claim 1, characterized in that: The rotation control shaft core (13) comprises a cylinder shell (131), which is fixedly connected on the panel (12), a main shaft core (132) is rotatably sleeved in the inner cavity of the cylinder shell (131), one end of the main shaft core (132) extends to the front of the panel (12) for controlling rotation, the other end extends to the inside of the closed box (11) for connecting the lock hook (15), a cylindrical block (133) is fixedly connected to the side wall of the main shaft core (132), a positioning sliding block (135) is fixedly connected to the side wall of the cylindrical block (133), an annular groove is formed in the inner wall of the cylinder shell (131), the positioning sliding block (135) is movably sleeved in the annular groove, and one end of the cylindrical block (133) is in transmission connection with the inner wall of the cylinder shell (131) through a torsional spring (134).

5. The refrigerator foamed door multifunctional integrated hidden lock according to claim 1, characterized in that: The support rod (179) is composed of an outer cylinder (1791) and an inner column (1792), and the outer cylinder (1791) is slidably sleeved in the inner column (1792).

6. The refrigerator foamed door multifunctional integrated hidden lock according to claim 5, characterized in that: The outer cylinder (1791) is provided with an air hole (1793) penetrating into the inner cavity of the outer cylinder (1791), and the air hole (1793) is arranged at the bottom of the inner column (1792).

7. The refrigerator foamed door multifunctional integrated hidden lock according to claim 1, characterized in that: The lock buckle fixing part (2) comprises a U-shaped plate (21), a turnover plate (22) is arranged in the U-shaped plate (21), the turnover plate (22) is rotatably sleeved on the inner wall of the U-shaped plate (21) through a rotating column (23), one end of the rotating column (23) is in transmission connection with the inner wall of the U-shaped plate (21) through a torsional spring (24), a limiting plate (25) is fixedly connected to the inner wall of the U-shaped plate (21), the limiting plate (25) abuts on one side of the turnover plate (22), the limiting plate (25) is used for limiting the counterclockwise turning of the turnover plate (22), and the side of the lock hook (15) facing the turnover plate (22) is provided as a slope.

8. The refrigerator foamed door multifunctional integrated hidden lock according to claim 1, characterized in that: The reversing transmission mechanism (17) is connected with an oil injection mechanism, the oil injection mechanism is composed of an oil tank (18) and an oil pumping mechanism (19), the oil tank (18) is used for storing liquid lubricating oil and is provided with a recovery space inside, the oil pumping mechanism (19) is installed on the top of the oil tank (18) and is linked with the arm plate (175), the oil inlet of the oil pumping mechanism (19) is connected with the inside of the oil tank (18) through an oil pipe a, the oil outlet of the oil pumping mechanism (19) is connected with the inside of the rotation control shaft core (13) through an oil pipe b, the arm plate (175) is turned over in angle to control the operation of the oil pumping mechanism (19), and the inside of the rotation control shaft core (13) is connected with the recovery space inside the oil tank (18) through an oil pipe c.

9. The refrigerator foamed door multifunctional integrated hidden lock according to claim 8, characterized in that: The oil pumping mechanism (19) comprises a sealed barrel (191), a core rod (192) is sleeved on the inside of the sealed barrel (191) in a sliding mode, the top end of the core rod (192) penetrates to the outside of the sealed barrel (191), the bottom end of the sealed barrel (191) and the top end of the core rod (192) are movably sleeved with connecting heads (194) through spherical joints (193), the two connecting heads (194) are fixedly connected with the bottom of the arm plate (175) and the top of the oil tank (18) respectively, the side wall of the sealed barrel (191) is provided with a one-way oil inlet pipe (195) and a one-way oil outlet pipe (196), the one-way oil inlet pipe (195) is connected with the oil pipe a, and the one-way oil outlet pipe (196) is connected with the oil pipe b.

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