Refrigerator door locking device

Abstract

The utility model relates to the technical field of refrigerators, in particular to a refrigerator door locking device. Comprising a refrigerator door, a push rod, an L-shaped hook claw, a clamping column, a first driving assembly and a second driving assembly. One end of the push rod is connected with the refrigerator door, and the other end is connected with the first driving assembly; the first driving assembly is used for pushing the push rod to drive the refrigerator door to be opened and closed. The clamping column is mounted on the side edge of the refrigerator door; the middle of the L-shaped hook claw is hinged to the side wall of the refrigerator, and the straight handle end of the L-shaped hook claw is connected with the second driving assembly. The second driving assembly is used for enabling the straight handle end of the L-shaped hook claw to swing up and down in the vertical direction and driving the bent end of the L-shaped hook claw to be connected with or separated from the clamping column in a clamped mode. The locking device not only can automatically open and close the refrigerator door and ensure that refrigeration of samples is not affected, but also is simple in structure and easy to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigerator technical field especially relates to a refrigerator door locking device. BACKGROUND

[0002] The sample stored in the automatic refrigerator is precious, needs long -term preservation in low temperature environment, in order to guarantee the environmental temperature of sample storage and the space sealing property of storage, the large -scale refrigerator of storage needs to be able to realize refrigerator door timely closing, to guarantee sealing property. But the operator when taking sample, because sample is more important, cannot take and put at will, under the condition that single hand cannot close large -scale refrigerator door, the operator needs to send sample to the specified area and then closes refrigerator door, to cause refrigerator door to be unable to close in time, in addition, large -scale refrigerator door single -hand switch is also more laborious. Therefore, it is urgent to solve.

[0003] The above content is only used to assist understanding the technical scheme of the utility model, and does not represent admitting that the above content is the closest prior art. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a refrigerator door locking device, the locking device not only can automatically open and close refrigerator door, ensure that the cold storage of sample is not affected, and simple structure, easy to maintain.

[0005] To achieve the purpose, the technical scheme of the utility model is realized as follows: a refrigerator door locking device, comprising: refrigerator door, push rod, L type hook claw, clamping column, first drive assembly and second drive assembly;The one end of push rod is connected with refrigerator door, and the other end is connected with first drive assembly;The first drive assembly is used for pushing push rod and driving refrigerator door to open and close;The clamping column is installed on the side of refrigerator door;The middle part of L type hook claw is hinged with the side plate of refrigerator, and the straight handle end of L type hook claw is connected with second drive assembly;The second drive assembly is used for the straight handle end of L type hook claw to swing up and down along the vertical direction, and drives the curved end of L type hook claw and clamping column to clamp or separate.

[0006] Preferably, the first drive assembly includes a rotating part and a sliding part;The rotating part is fixedly connected with one end of the push rod and drives the push rod to rotate around the connecting point of the rotating part and the push rod;The sliding part is in sliding connection with the length direction of the top of the refrigerator door, and the other end of the push rod is rotatably connected with the sliding part.

[0007] Preferably, the rotating part includes a rotating motor and a mounting base;The mounting base is installed on the top plate of the refrigerator;The rotating motor is fixed on the mounting base, and the motor shaft of the rotating motor is connected with one end of the push rod perpendicularly after penetrating through the mounting base.

[0008] Preferably, the sliding part comprises a vertical rod, a sliding block and a sliding rail; the sliding rail is laid along the length direction of the top of the refrigerator door; the bottom of the sliding block is in sliding connection with the sliding rail, and the top of the sliding block is in vertical connection with the bottom of the vertical rod; the top of the vertical rod is in rotary connection with the other end of the push rod.

[0009] Preferably, the second driving assembly comprises a telescopic part and a transmission part; the telescopic part is installed on the top plate of the refrigerator; the transmission part is installed on the side plate of the refrigerator and is hinged with the straight handle end of the L-shaped hook claw; the telescopic part is connected with the transmission part and drives the transmission part to reciprocate along the vertical direction.

[0010] Preferably, the telescopic part comprises a telescopic motor, a fixed plate, an elongated guide plate and a connecting clamping rod; the fixed plate is installed on the top plate of the refrigerator; the telescopic motor is installed on the fixed plate, and the telescopic rod of the telescopic motor is connected with the top of the elongated guide plate after penetrating through the fixed plate; one end of the connecting clamping rod is hinged with the side edge of the elongated guide plate, and the other end is in detachable connection with the straight handle end of the L-shaped hook claw.

[0011] Preferably, the telescopic part comprises a telescopic motor, a fixed plate, an elongated guide plate and a connecting clamping rod; the fixed plate is installed on the top plate of the refrigerator; the telescopic motor is installed on the fixed plate, and the telescopic rod of the telescopic motor is connected with the top of the elongated guide plate after penetrating through the fixed plate; one end of the connecting clamping rod is hinged with the side edge of the elongated guide plate, and the other end is in detachable connection with the straight handle end of the L-shaped hook claw.

[0012] Preferably, the other end of the connecting clamping rod is provided with a U-shaped clamping port; the U-shaped clamping port is hinged with the side edge of the elongated guide plate.

[0013] Preferably, the telescopic part comprises a telescopic motor, a fixed plate, an elongated guide plate and a connecting clamping rod; the fixed plate is installed on the top plate of the refrigerator; the telescopic motor is installed on the fixed plate, and the telescopic rod of the telescopic motor is connected with the top of the elongated guide plate after penetrating through the fixed plate; one end of the connecting clamping rod is hinged with the side edge of the elongated guide plate, and the other end is in detachable connection with the straight handle end of the L-shaped hook claw.

[0014] The beneficial effects of the utility model lie in:

[0015] The refrigerator door locking device provided by the utility model can realize automatic opening and closing of the refrigerator door, so that the operator does not need to contact the refrigerator door when taking the sample, pollution of the sample is avoided, and the refrigerator door can be closed in time after the sample taking is finished. This not only ensures that the environment temperature required for sample storage is not affected, but also ensures that the refrigerator door is not easily opened, thereby ensuring the stability of sample preservation after the refrigerator door is closed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The utility model is a structural schematic view;

[0017] Fig. 2 The utility model is a side view.

[0018] MARKS OF THE DRAWINGS:

[0019] A1, refrigerator door; A2, refrigerator side plate; A3, refrigerator top plate; 10, rotating motor; 11, mounting base; 12, push rod; 13, vertical rod; 14, sliding block; 15, sliding rail; 20, telescopic motor; 21, fixed plate; 22, long strip-shaped guide plate; 23, positioning strip; 24, connecting clamping rod; 25, L-shaped hook claw; 26, clamping column. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] EMBODIMENT

[0022] Referring to Figs. 1-2 As shown in the figure:

[0023] The utility model provides a refrigerator door locking device, include: refrigerator door A1, push rod 12, L type hook claw 25, clamping column 26, first drive assembly and second drive assembly.

[0024] One end of push rod 12 is connected with refrigerator door A1, and the other end is connected with first drive assembly. First drive assembly is used for driving push rod 12 to drive refrigerator door A1 to open and close. Clamping column 26 is installed at the side of refrigerator door A1. The middle part of L type hook claw 25 is hinged with refrigerator side plate A2, and the straight handle end of L type hook claw 25 is connected with second drive assembly; second drive assembly is used for the straight handle end of L type hook claw 25 to swing up and down along the vertical direction, and drives the curved end of L type hook claw 25 and clamping column 26 to be clamped or separated.

[0025] In specific application, if the refrigerator is to execute automatic door opening, first, the curved end of L type hook claw 25 is separated from clamping column 26 by second drive assembly, then push rod 12 is driven by first drive assembly to open refrigerator door A1, at this time, the operator can smoothly take the sample in the refrigerator. If after the sample storage is finished, the refrigerator door needs to be closed, first, push rod 12 is driven by first drive assembly to close refrigerator door A1, then the curved end of L type hook claw 25 is clamped with clamping column 26 by second drive assembly, so as to complete the automatic opening and closing of the refrigerator, the whole operation process is simple and convenient, fast and efficient, so as to improve the preservation effect of the sample.

[0026] The first driving assembly comprises a rotating part and a sliding part. The rotating part is fixedly connected with one end of the push rod 12 and drives the push rod 12 to rotate around the connecting point of the rotating part and the push rod 12; the sliding part is slidably connected with the length direction of the top of the refrigerator door A1, and the sliding part is rotatably connected with the other end of the push rod 12.

[0027] The rotating part comprises a rotating motor 10 and a mounting base 11. The mounting base 11 is mounted on the refrigerator top plate A3; the rotating motor 10 is fixed on the mounting base 11, and the motor shaft of the rotating motor 10 is perpendicularly connected with one end of the push rod 12 after penetrating through the mounting base 11. The sliding part mainly comprises a vertical rod 13, a sliding block 14 and a sliding rail 15. The sliding rail 15 is laid along the length direction of the top of the refrigerator door A1; the bottom of the sliding block 14 is slidably connected with the sliding rail 15, the top of the sliding block 14 is perpendicularly connected with the bottom of the vertical rod 13; the top of the vertical rod 13 is rotatably connected with the other end of the push rod 12.

[0028] By arranging the rotating part and the sliding part, when the refrigerator is automatically opened, the rotating motor 10 drives one end of the push rod 12 to rotate, thereby driving the other end of the push rod 12 to drive the sliding block 14 to move along the length direction of the sliding rail 15, and gradually pushing the refrigerator door A1 to open in the process of moving, so as to simulate the process that the refrigerator door is gradually opened and closed when a person opens the refrigerator door, and make the automatic opening and closing process of the refrigerator door more smooth, without causing wear and tear, and improve the service life of the refrigerator door.

[0029] The second driving assembly comprises a telescopic part and a transmission part. The telescopic part is mounted on the refrigerator top plate A3; the transmission part is mounted on the refrigerator side plate A2, and the transmission part is hingedly connected with the straight handle end of the L-shaped hook claw 25; the telescopic part is connected with the transmission part and drives the transmission part to reciprocate along the vertical direction.

[0030] The telescopic part mainly comprises a telescopic motor 20, a fixed plate 21, an elongated guide plate 22 and a connecting clamping rod 24. The fixed plate 21 is mounted on the refrigerator top plate A3, the telescopic motor 20 is mounted on the fixed plate 21, and the telescopic rod of the telescopic motor 20 is connected with the top of the elongated guide plate 22 after penetrating through the fixed plate 21. One end of the connecting clamping rod 24 is hingedly connected with the side edge of the elongated guide plate 22, and the other end is detachably connected with the straight handle end of the L-shaped hook claw 25. It also comprises a positioning strip 23; the positioning strip 23 is mounted on the refrigerator side plate A2 and arranged along the vertical direction of the refrigerator side plate A2; the middle part of the L-shaped hook claw 25 is hingedly connected with the middle part of the positioning strip 23.

[0031] The other end of the connecting clamping rod 24 is provided with a U-shaped clamping hole; the U-shaped clamping hole is clamped on the side edge of the elongated guide plate 22 and hingedly connected with the side edge of the elongated guide plate 22, so that when the elongated guide plate 22 reciprocates along the vertical direction, the straight handle end of the L-shaped hook claw 25 can be driven to reciprocate around the hinged connecting point of the middle part of the L-shaped hook claw 25 and the middle part of the positioning strip 23.

[0032] Two connecting bolts are further included; the straight handle end of the L-shaped hook claw 25 is provided with at least four bolt holes in the length direction, and one end of the connecting clamping rod 24 is provided with two butt joint holes; the connecting bolts are used to fix and connect the straight handle end of the L-shaped hook claw 25 and one end of the connecting clamping rod 24 after passing through the butt joint holes and the bolt holes.

[0033] Through such an arrangement, the connection point of the straight handle end of the L-shaped hook claw 25 and the connecting clamping rod 24 can be adjusted, so as to adjust the connection distance between the straight handle end of the L-shaped hook claw 25 and the long strip-shaped guide plate 22, and complete the adjustment of the swing amplitude of the curved end of the L-shaped hook claw 25 when the long strip-shaped guide plate 22 moves along the vertical direction, so that the curved end of the L-shaped hook claw 25 can better clamp or separate from the clamping column 26.

[0034] In specific applications, the L-shaped hook claw 25 and the clamping column 26 are both at least two, so that the refrigerator door A1 is more stable after being locked.

[0035] In order to enable the telescopic motor 20 to drive the long strip-shaped guide plate 22 to move along the vertical direction smoothly and reciprocally, a rectangular connecting frame is arranged between the telescopic rod of the telescopic motor 20 and the top of the long strip-shaped guide plate 22; the middle part of the top end of the rectangular connecting frame is connected with the telescopic rod of the telescopic motor 20 vertically, the bottom end of the rectangular connecting frame is connected with the top of the long strip-shaped guide plate 22, and the width of the bottom end of the rectangular connecting frame is the same as the width of the top end of the long strip-shaped guide plate 22.

[0036] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A refrigerator door locking device, characterized in that, The refrigerator door (A1), the push rod (12), the L-shaped hook claw (25), the clamping column (26), the first driving assembly and the second driving assembly are connected; one end of the push rod (12) is connected with the refrigerator door (A1), and the other end is connected with the first driving assembly; the first driving assembly is used for pushing the push rod (12) to drive the refrigerator door (A1) to open and close; the clamping column (26) is installed on the side of the refrigerator door (A1); the middle part of the L-shaped hook claw (25) is hinged with the refrigerator side plate (A2), and the straight handle end of the L-shaped hook claw (25) is connected with the second driving assembly; the second driving assembly is used for driving the straight handle end of the L-shaped hook claw (25) to swing up and down along the vertical direction, and driving the curved end of the L-shaped hook claw (25) to be clamped or separated with the clamping column (26). The first driving assembly comprises a rotating part and a sliding part; the rotating part is fixedly connected with one end of the push rod (12) and drives the push rod (12) to rotate around the connecting point of the rotating part and the push rod (12); the sliding part is slidably connected with the length direction of the top of the refrigerator door (A1), and the other end of the push rod (12) is rotatably connected with the sliding part.

2. The refrigerator door locking device according to claim 1, wherein The rotating part comprises a rotating motor (10) and a mounting base (11); the mounting base (11) is mounted on the refrigerator top plate (A3); the rotating motor (10) is fixed on the mounting base (11), and the motor shaft of the rotating motor (10) is connected with one end of the push rod (12) perpendicularly after penetrating through the mounting base (11).

3. The refrigerator door locking device according to claim 2, wherein The sliding part comprises a vertical rod (13), a sliding block (14) and a sliding rail (15); the sliding rail (15) is laid along the length direction of the top of the refrigerator door (A1); the bottom of the sliding block (14) is slidably connected with the sliding rail (15), and the top of the sliding block (14) is perpendicularly connected with the bottom of the vertical rod (13); the top of the vertical rod (13) is rotatably connected with the other end of the push rod (12).

4. The refrigerator door locking device according to claim 3, wherein The second driving assembly comprises a telescopic part and a transmission part; the telescopic part is mounted on the refrigerator top plate (A3); the transmission part is mounted on the refrigerator side plate (A2), and the transmission part is hinged with the straight handle end of the L-shaped hook claw (25); the telescopic part is connected with the transmission part and drives the transmission part to move reciprocatingly along the vertical direction.

5. The refrigerator door locking device according to claim 4, wherein The telescopic part comprises a telescopic motor (20), a fixed plate (21), a long strip-shaped guide plate (22) and a connecting clamping rod (24); the fixed plate (21) is mounted on the refrigerator top plate (A3); the telescopic motor (20) is mounted on the fixed plate (21), and the telescopic rod of the telescopic motor (20) is connected with the top of the long strip-shaped guide plate (22) after penetrating through the fixed plate (21); one end of the connecting clamping rod (24) is hinged with the side of the long strip-shaped guide plate (22), and the other end is detachably connected with the straight handle end of the L-shaped hook claw (25).

6. The refrigerator door locking device according to claim 5, wherein ​ 7. The refrigerator door locking device according to claim 6, wherein It further comprises two connecting bolts; the straight handle end of the L-shaped hook claw (25) is provided with at least four bolt holes in the length direction, and one end of the connecting clamping rod (24) is provided with two butt joints; the connecting bolts are used to fix and connect the straight handle end of the L-shaped hook claw (25) and one end of the connecting clamping rod (24) after passing through the butt joints and the bolt holes.

8. The refrigerator door locking device according to claim 7, wherein The other end of the connecting clamping rod (24) is provided with a U-shaped clamping hole; the U-shaped clamping hole is hinged to the side edge of the long strip-shaped guide plate (22).

9. The refrigerator door locking device according to claim 8, wherein It further comprises a positioning strip (23); the positioning strip (23) is installed on the refrigerator side plate (A2) and is arranged in the vertical direction of the refrigerator side plate (A2); the middle part of the L-shaped hook claw (25) is hinged to the middle part of the positioning strip (23).

Images