CN108005508A - A kind of multistage linking door locking device - Google Patents

Abstract

The present invention relates to a kind of multistage linking door locking device, locking device includes telescopic mechanism, pivoted arm, the second hook and connecting rod；Telescopic mechanism is transferred in babinet, telescopic mechanism is transferred in pivoted arm, pivoted arm rotation is fixed on babinet and is fixed with the first hook for catching on chamber door, connecting rod is rotationally connected with the middle part of pivoted arm, link rotatable is fixed on the second hook, the middle part of second hook, which rotates, is fixed on babinet, by driving telescopic mechanism to carry out stretching motion so that first and second hook catches on and unclamps chamber door.The present invention is carried out at the same time by being equipped with the first hook and the second hook in the locking device and catches on chamber door, i.e., multistage linking lock sealing is realized between babinet and chamber door, enhances the lock ability and sealing performance of the locking device；Carried out driving the first hook and the second hook to catch on chamber door at the same time by a telescopic mechanism, its is compact-sized, design is reasonable, greatly reduces the occupied space of the locking device.

Description

A multi-stage linkage box door locking device

technical field

The invention relates to a locking device, in particular to a multi-stage linkage box door locking device.

Background technique

At present, the box door is used in many industrial and living fields, such as electrical cabinets, containers, car boxes, refrigerators and so on. Since it is necessary to lock and seal between the door and the casing of these devices, a locking device is usually provided between the door and the casing. Most of the existing locking devices are buckle structures, which have the following defects:

1. The structure is too simple, the locking ability is poor and the sealing performance is not good, and it will take up a lot of space;

2. The length of each connecting rod is fixed and cannot be adjusted, which brings great difficulties to the installation of the locking device.

Contents of the invention

The invention provides a multi-stage linkage box door locking device, which solves the above-mentioned technical problems.

The solution of the present invention to solve the above technical problems is as follows: a multi-stage linkage box door locking device for locking and sealing between the box body and the box door, the locking device includes a telescopic mechanism, a rotating arm, a second Two hooks and connecting rods; one end of the telescopic mechanism is rotatably fixed to the box, the other end of the telescopic mechanism is rotatably fixed to one end of the rotating arm, and the other end of the rotating arm is rotatably fixed to the The box body is fixed with a first hook for hooking the box door, the middle part of the pivoting arm is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably fixed to one end of the second hook , the middle part of the second hook is rotatably fixed to the box body, the other end of the second hook is used to hook the door, and the telescopic movement is made by driving the telescopic mechanism, so that the first hook and The second hook hooks and releases the box door.

The beneficial effects of the present invention are: the present invention provides a multi-stage linkage box door locking device, which has the following advantages: 1. The first hook and the second hook are provided in the locking device to hook the box door at the same time; , that is to realize multi-stage linkage locking and sealing between the box body and the box door, which enhances the locking ability and sealing performance of the locking device; 2. The other end of the telescopic mechanism is fixed to the rotating arm One end, the other end of the rotating arm is rotatably fixed to the box body and is fixed with a first hook for hooking the box door, the middle part of the rotating arm is rotatably connected to one end of the connecting rod, and the connecting rod The other end of the second hook is rotated and fixed to one end of the second hook, and a retractable mechanism simultaneously drives the first hook and the second hook to hook the door. Its structure is compact and its design is reasonable, which greatly reduces the locking device. take up space.

On the basis of the above technical solutions, the present invention can also be improved as follows.

Further, the locking device further includes a fixed seat, the fixed seat is fixed to the box body, and one end of the telescopic mechanism is rotatably fixed to the fixed seat.

The beneficial effect of adopting the above further solution is: one end of the telescopic mechanism is fixed to the box through the rotation of the fixing seat, it is more convenient, firm and reliable to install the telescopic mechanism, and it is also convenient to disassemble and assemble the telescopic mechanism and replace.

Further, the telescopic mechanism includes a first sleeve, a first adjustment rod and a driving member for driving the first adjustment rod to move linearly relative to the first sleeve, one end of the first sleeve Rotationally fixed to the box body, one end of the first adjusting rod is slidably fixed in the first sleeve, and the other end of the first adjusting rod is rotatably fixed to one end of the rotating arm.

The beneficial effect of adopting the above further proposal is that the length of the telescopic mechanism is convenient to be adjusted by designing the telescopic mechanism as a piston-sleeve type.

Further, the other end of the first adjusting rod is screwed with a rod end, and the rod end is rotatably fixed to one end of the rotating arm.

The beneficial effect of adopting the above-mentioned further solution is: by screwing the rod end on the other end of the first adjusting rod, it is convenient to fine-tune the length of the telescopic mechanism during the installation process, so as to avoid the installation error of other components from affecting the telescopic mechanism. installation is inconvenient.

Further, the connecting rod includes a second sleeve and a second adjusting rod; one end of the second adjusting rod is rotatably fixed to the middle part of the rotating arm, and the other end of the second adjusting rod is screwed to the first One end of the second sleeve, and the other end of the second sleeve is rotatably fixed to one end of the second hook.

The beneficial effect of adopting the above further solution is: by designing the connecting rod as a second sleeve and a second adjusting rod, the second adjusting rod is screwed to the second sleeve, so that it is convenient to adjust the length of the connecting rod during installation. Fine-tune to avoid installation errors of other components causing inconvenience to the installation of the connecting rod.

Further, the locking device further includes a support seat fixed to the box body, and the other end of the rotating arm is rotatably fixed to the support seat.

The beneficial effect of adopting the above further solution is: by rotating and fixing the other end of the rotating arm to the box body through the support base, the box body can be used without remodeling.

Further, a first rotating shaft is rotatably fixed on the support base, the other end of the rotating arm is fixed on one end of the first rotating shaft, and the other end of the first rotating shaft is fixed with the first hook.

The beneficial effect of adopting the above-mentioned further solution is: by fixing the rotating arm and the first hook at both ends of the first rotating shaft, it is convenient to transfer the first hook to the best hooking point with the box door at will, thereby further ensuring the stability of the box body. Lock and seal between the door and the box.

Further, the locking device further includes another support base fixed to the box door, a first limit shaft is fixed on the support base, and the first hook hooks the first limit shaft.

The beneficial effect of adopting the above further solution is: by fixing the first limit shaft on the support base, the first hook is hooked with the first limit shaft, ensuring that the hook between the first hook and the box door connection stability.

Further, the locking device also includes a second rotating shaft fixed to the box body and a second limit shaft fixed to the box door, and the middle part of the second hook is fixed to the second rotating shaft through the second rotating shaft. The box body, the second hook hooks the second limit shaft; the middle part of the rotating arm is provided with a third rotating shaft, and the middle part of the rotating arm is connected to the connecting rod through the third rotating shaft. one end.

The beneficial effect of adopting the above further scheme is that: by providing the second rotating shaft on the box body and the second limit shaft on the box door, the box body can be used without remodeling.

Further, the drive mode of the telescopic mechanism is one of hydraulic, pneumatic and motor.

The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention and accompanying drawings are described in detail below. The specific embodiment of the present invention is given in detail by the following examples and accompanying drawings.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a structural schematic diagram of a multi-stage linkage box door locking device provided by an embodiment of the present invention when it is in use;

Fig. 2 is an enlarged schematic diagram of A when the multi-stage linkage box door locking device provided in Fig. 1 is in use;

Fig. 3 is a partially enlarged schematic diagram at a viewing angle when the multi-stage linkage box door locking device provided in Fig. 1 is in use;

Fig. 4 is a partially enlarged schematic diagram of another viewing angle when the multi-stage linkage box door locking device provided in Fig. 1 is in use;

Fig. 5 is a partially enlarged schematic diagram of another viewing angle when the multi-stage linkage box door locking device provided in Fig. 1 is in use;

FIG. 6 is a schematic perspective view of a multi-stage linkage box door locking device provided in FIG. 1 .

In the accompanying drawings, the list of parts represented by each label is as follows:

100, locking device; 10, fixed seat; 20, telescopic mechanism; 21, first sleeve; 22, first adjusting rod; 221, rod end; 30, rotating arm; 31, first hook; 40, the first A rotating shaft; 50, support seat; 60, the first limit shaft; 70, the second hook; 80, connecting rod; 81, the second sleeve; 82, the second adjusting rod; 90, the second rotating shaft; 101, the second Two limit shafts; 102, the third rotating shaft; 200, the casing; 201, the first rotating block; 300, the box door; 301, the second rotating block.

Detailed ways

The principles and features of the present invention are described below in conjunction with accompanying drawings 1-6, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention. In the following paragraphs the invention is described more specifically by way of example with reference to the accompanying drawings. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in Figures 1-6, the present invention provides a multi-stage linkage box door locking device for locking and sealing between the box body 200 and the box door 300, and the locking device 100 includes a retractable mechanism 20. The rotating arm 30, the second hook 70 and the connecting rod 80; one end of the telescopic mechanism 20 is rotatably fixed to the box body 200, and the other end of the telescopic mechanism 20 is rotatably fixed to the end of the rotating arm 30. One end, the other end of the rotating arm 30 is rotatably fixed to the box body 200 and is fixed with a first hook 31 for hooking the box door 300 , and the middle part of the rotating arm 30 is rotatably connected to the connecting rod 80 One end, the other end of the connecting rod 80 is rotatably fixed to one end of the second hook 70, the middle part of the second hook 70 is rotatably fixed to the box body 200, and the other end of the second hook 70 is used for Hook the box door 300 , and drive the retractable mechanism 20 to perform telescopic movement, so that the first hook 31 and the second hook 70 hook and release the box door 300 . One end of the box body 200 is fixed with a first rotating block 201 , one end of the box door 300 is fixed with a second rotating block 301 , and the first rotating block 201 is rotatably fixed to the second rotating block 301 .

The above embodiment provides a multi-stage linkage box door locking device, which has the following advantages: 1. By setting the first hook 31 and the second hook 70 in the locking device 100 to hook the box door 300 at the same time, That is, between the box body 200 and the box door 300, multi-stage interlocking locking and sealing are realized, which enhances the locking ability and sealing performance of the locking device; 2. The other end of the telescopic mechanism 20 is fixed to the rotary One end of the arm 30, the other end of the rotating arm 30 is rotatably fixed to the box body 200 and is fixed with a first hook 31 for hooking the box door 300, and the middle part of the rotating arm 30 is rotatably connected to the connecting One end of the rod 80, the other end of the connecting rod 80 is rotatably fixed to one end of the second hook 70, and a retractable mechanism 20 simultaneously drives the first hook 31 and the second hook 70 to catch the door 300, and The structure is compact and the design is reasonable, which greatly reduces the occupied space of the locking device 100 .

Preferably, as shown in FIG. 1 or FIG. 3 , the locking device 100 further includes a fixing base 10, the fixing base 10 is fixed to the box body 200, and one end of the telescopic mechanism 20 is rotatably fixed to the Fixing seat 10. One end of the telescopic mechanism 20 is rotatably fixed to the box body 200 through the fixing seat 10 , so that the telescopic mechanism 20 is more convenient, firm and reliable to install, and it is also convenient to disassemble and replace the telescopic mechanism 20 .

Preferably, as shown in FIG. 2 , the telescopic mechanism 20 includes a first sleeve 21, a first adjusting rod 22 and a device for driving the first adjusting rod 22 to move linearly relative to the first sleeve 21. One end of the first sleeve 21 is rotatably fixed to the box body 200, one end of the first adjusting rod 22 is slidably fixed in the first sleeve 21, and the first adjusting rod 22 The other end of the rotating arm is fixed to one end of the rotating arm 30 .

It should be noted that the driving member can be designed as a hydraulic pump, an air source and other power sources in the prior art that can be used to drive the piston-sleeve device to perform linear motion.

By designing the telescopic mechanism 20 as a piston-sleeve type, it is convenient to adjust the length of the telescopic mechanism 20 .

Preferably, as shown in FIG. 2 and FIG. 3 , the other end of the first adjusting rod 22 is screwed with a rod end 221 , and the rod end 221 is rotatably fixed to one end of the rotating arm 30 . By screwing the rod end 221 on the other end of the first adjusting rod 22, it is convenient to fine-tune the length of the telescopic mechanism 20 during the installation process, so as to avoid installation errors of other components from causing inconvenience to the installation of the telescopic mechanism 20 .

Preferably, as shown in FIG. 2 and FIG. 3 , the connecting rod 80 includes a second sleeve 81 and a second adjusting rod 82; one end of the second adjusting rod 82 is rotatably fixed to the middle part of the rotating arm 30, The other end of the second adjusting rod 82 is screwed to one end of the second sleeve 81 , and the other end of the second sleeve 81 is rotatably fixed to one end of the second hook 70 . By designing the connecting rod 80 as a second sleeve 81 and a second adjusting rod 82, the second adjusting rod 82 is screwed to the second sleeve 81, which is convenient for fine-tuning the length of the connecting rod 80 during installation to avoid The installation errors of other components bring inconvenience to the installation of the connecting rod 80 .

Preferably, as shown in FIG. 1 , FIG. 4 and FIG. 5 , the locking device 100 further includes a support base 50 fixed to the box body 200 , and the other end of the rotating arm 30 is rotatably fixed to the support base. 50.

By rotating and fixing the other end of the rotating arm 30 to the box body 200 through the support base 50 , the box body 200 can be used without remodeling.

Preferably, as shown in FIG. 1 , FIG. 4 and FIG. 5 , the first rotating shaft 40 is rotatably fixed on the support base 50 , and the other end of the rotating arm 30 is fixed on one end of the first rotating shaft 40 , and the The other end of the first rotating shaft 40 is fixed with the first hook 31 .

By fixing the rotating arm 30 and the first hook 31 respectively at the two ends of the first rotating shaft 40, it is convenient to transfer the first hook 31 to the best hooking point with the box door 300, thereby further ensuring the stability of the box body 200 and the box door. Lock tightness between 300.

Preferably, as shown in FIG. 1 , FIG. 4 , FIG. 5 and FIG. 6 , the locking device 100 further includes another support base 50 fixed to the box door 300 , and the support base 50 is fixed with a first The limiting shaft 60 , the first hook 31 hooks the first limiting shaft 60 .

By fixing the first limit shaft 60 on the support seat 50, the first hook 31 is engaged with the first limit shaft 60 to ensure the stability of the hook between the first hook 31 and the box door 300 sex.

Preferably, as shown in FIG. 1, FIG. 3, FIG. 4 and FIG. Position shaft 101, the middle part of the second hook 70 is fixed to the box body 200 through the second rotating shaft 90, and the second hook 70 hooks the second limit shaft 101; the rotating arm 30 A third rotating shaft 102 is provided in the middle, and the middle of the rotating arm 30 is rotatably connected to one end of the connecting rod 80 through the third rotating shaft 102 .

By providing the second rotating shaft 90 on the box body 200 and the second limiting shaft 101 on the box door 300, the box body 200 can be used without remodeling.

Preferably, the driving method of the retractable mechanism 20 is one of hydraulic, pneumatic and motor. The driving mode of the telescopic mechanism 20 can be designed as hydraulic type, pneumatic type and motor type. The hydraulic type is that a piston rod is arranged in the hydraulic cylinder, and the hydraulic pump provides liquid pressure to drive the piston rod to perform telescopic movement. That is, a piston rod is installed in the pneumatic cylinder, and the liquid pressure from the air compressor is used to drive the piston rod to perform telescopic movement. The motor type can drive a connecting rod to perform telescopic movement through a transmission device for the rotary movement of the output end of the motor. It can be understood that the driving method of the retractable mechanism 20 can also be designed as any other equivalent replacement in the prior art.

As shown in Figures 1-6, the specific working principle and usage method of the present invention are as follows: when the box door needs to be locked, the telescopic mechanism 20 is driven to perform stretching motion, and the telescopic mechanism 20 drives the swing arm 30 One end rotates around the first rotating shaft 40, and the first hook 31 fixedly connected to the other end of the rotating arm 30 hooks the first limit shaft 60; at the same time, as the rotating arm 30 rotates, the middle part of the rotating arm 30 Drive the connecting rod 80, and then push the second hook 70 to hook the first limit shaft 101, so as to lock and seal between the box body 200 and the box door 300; similarly, when the box door needs to be opened, drive The retractable mechanism 20 performs a contraction movement, so that the first hook 31 and the second hook 70 release the box door 300 .

The present invention provides a multi-stage linkage box door locking device, which has the following advantages: 1. By setting the first hook 31 and the second hook 70 in the locking device 100 to hook the box door 300 at the same time, that is, The multi-stage linkage locking and sealing is realized between the box body 200 and the box door 300, which enhances the locking ability and sealing performance of the locking device; 2. The other end of the telescopic mechanism 20 is rotatably fixed to the rotating arm 30 The other end of the rotating arm 30 is rotatably fixed to the box body 200 and is fixed with a first hook 31 for hooking the box door 300 , and the middle part of the rotating arm 30 is rotatably connected to the connecting rod 80 One end of the connecting rod 80 is rotatably fixed to one end of the second hook 70, and a retractable mechanism 20 simultaneously drives the first hook 31 and the second hook 70 to catch the door 300, and its structure is compact 1. The design is reasonable, which greatly reduces the occupied space of the locking device 100; 3. By screwing the rod end 221 on the other end of the first adjusting rod 22, it is convenient to fine-tune the length of the telescopic mechanism 20 during installation , so as not to cause inconvenience to the installation of the retractable mechanism 20 due to installation errors of other components; The two sleeves 81 are screwed together, which is convenient for fine-tuning the length of the connecting rod 80 during the installation process, so as to avoid installation errors of other components from bringing inconvenience to the installation of the connecting rod 80 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form; all those skilled in the art can smoothly implement the present invention as shown in the attached drawings and the above descriptions. However, any equivalent change, modification and evolution made by those skilled in the art without departing from the scope of the technical solution of the present invention by utilizing the technical content disclosed above are all equivalent implementations of the present invention Example; at the same time, all changes, modifications and evolutions made to the above embodiments according to the substantive technology of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims (10)

1. A multi-stage linkage box door locking device for locking and sealing between the box body (200) and the box door (300), characterized in that the locking device (100) includes a telescopic mechanism (20), pivoting arm (30), second hook (70) and connecting rod (80); One end of the telescopic mechanism (20) is rotatably fixed to the box body (200), the other end of the telescopic mechanism (20) is rotatably fixed to one end of the rotating arm (30), and the rotating arm ( 30), the other end of which is rotationally fixed to the box body (200) and is fixed with a first hook (31) for hooking the box door (300), and the middle part of the rotating arm (30) is rotatably connected to the connecting One end of the rod (80), the other end of the connecting rod (80) is rotatably fixed to one end of the second hook (70), and the middle part of the second hook (70) is rotatably fixed to the box (200) ), the other end of the second hook (70) is used to hook the door (300), by driving the telescopic mechanism (20) to perform telescopic movement, so that the first hook (31) and the The second hook (70) hooks and releases the box door (300). 2. A multi-stage linkage box door locking device according to claim 1, characterized in that, the locking device (100) further comprises a fixing seat (10), and the fixing seat (10) is fixed on the In the case (200), one end of the telescopic mechanism (20) is rotatably fixed to the fixed base (10). 3. A multi-stage linkage box door locking device according to claim 1, characterized in that the telescopic mechanism (20) comprises a first sleeve (21), a first adjusting rod (22) and a a drive member that drives the first adjusting rod (22) to move linearly relative to the first sleeve (21), one end of the first sleeve (21) is fixed to the box (200) in rotation, One end of the first adjusting rod (22) is slidably fixed in the first sleeve (21), and the other end of the first adjusting rod (22) is rotatably fixed at one end of the rotating arm (30). 4. A multi-stage linkage box door locking device according to claim 3, characterized in that, the other end of the first adjusting rod (22) is screwed with a rod end (221), and the rod end (221 ) is fixed to one end of the rotating arm (30) in rotation. 5. A multi-stage linkage box door locking device according to claim 1, characterized in that, the connecting rod (80) comprises a second sleeve (81) and a second adjusting rod (82); the first One end of the two adjusting rods (82) is rotationally fixed to the middle part of the rotating arm (30), and the other end of the second adjusting rod (82) is screwed to one end of the second sleeve (81). The other end of the second sleeve (81) is rotatably fixed to one end of the second hook (70). 6. A multi-stage linkage box door locking device according to claim 1, characterized in that, the locking device (100) further comprises a support seat (50) fixed to the box body (200), the The other end of the rotating arm (30) is rotatably fixed to the support seat (50). 7. A multi-stage linkage box door locking device according to claim 6, characterized in that, the first rotating shaft (40) is fixed to rotate on the support seat (50), and the other rotating arm (30) One end is fixed to one end of the first rotating shaft (40), and the other end of the first rotating shaft (40) is fixed with the first hook (31). 8. A multi-stage linkage box door locking device according to claim 7, characterized in that, the locking device (100) further comprises another support seat (50) fixed to the box door (300) , the support seat (50) is fixed with a first limiting shaft (60), and the first hook (31) hooks the first limiting shaft (60). 9. A multi-stage linkage box door locking device according to claim 1, characterized in that, the locking device (100) further comprises a second rotating shaft (90) fixed to the box body (200) and The second limit shaft (101) fixed on the box door (300), the middle part of the second hook (70) is fixed to the box body (200) through the rotation of the second rotating shaft (90), so The second hook (70) hooks the second limiting shaft (101); the middle part of the rotating arm (30) is provided with a third rotating shaft (102), and the middle part of the rotating arm (30) passes through the first The three rotating shafts (102) are rotatably connected to one end of the connecting rod (80). 10. A multi-stage linkage box door locking device according to any one of claims 1-9, characterized in that the drive mode of the telescopic mechanism (20) is one of hydraulic, pneumatic and motor kind.