A locking device

Abstract

The present application provides a locking device, including a locking mechanism and a connecting mechanism; the locking mechanism includes an inner ring assembly and an outer ring assembly; the inner ring assembly and the outer ring assembly can rotate relatively, and multiple groups of docking parts for docking with the connecting mechanism are provided therebetween; the docking parts include a slider and a slide groove that can slide relatively; a first semicircular groove is provided at one end of the slider along the sliding direction; the axial direction of the first groove is the same as the axial direction of the inner ring assembly; a corresponding second groove is provided on the slide groove corresponding to the first groove.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical assembly, and in particular to a locking device. Background Art

[0002] Common designs of locking mechanisms include thread locking, eccentric wheel locking, inclined plane locking, four-bar locking, etc. The main working principles used by the locking mechanism include mechanical dead point, pressure angle and friction angle.

[0003] Barrels, cabins, cavities and other mechanical equipment that require airtightness or sealing usually require a locking mechanism. The degree of locking includes requirements for airtightness but not sealing and no vacuum requirement, and requirements for airtightness, sealing and vacuum requirement.

[0004] At present, the disadvantages of the existing locking devices are: complex structure, easy to get stuck, low degree of automation, too many intermediate links, and no detection device for feedback. Summary of the invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a locking device.

[0006] The present application provides a locking device, including a locking mechanism and a connecting mechanism; the locking mechanism includes an inner ring assembly and an outer ring assembly; the inner ring assembly and the outer ring assembly can rotate relatively, and multiple groups of docking parts for docking with the connecting mechanism are provided therebetween; the docking parts include a slider and a slide groove that can slide relatively; a first semicircular groove is provided at one end of the slider along the sliding direction; the axial direction of the first groove is the same as the axial direction of the inner ring assembly; a corresponding second groove is provided on the slide groove corresponding to the first groove.

[0007] Furthermore, the locking mechanism and the connecting mechanism are respectively installed on the cabin cover and the cabin body.

[0008] Furthermore, it also includes a buckle; the inner ring assembly and the outer ring assembly are rotatably mounted on the hatch cover via the buckle; the buckle is fixedly mounted on the hatch cover to limit the movement of the inner ring assembly and the outer ring assembly in the radial direction and the axial direction.

[0009] Furthermore, it also includes a limit block; the limit block is fixedly installed on the hatch cover and is used to limit the rotation angle of the inner ring assembly; a strip hole is provided on the inner ring assembly corresponding to the limit block.

[0010] Furthermore, it also includes a cylinder; the cylinder is hinged on the outer ring assembly, the piston rod is hinged on the inner ring assembly, and the hinge axis is arranged along the axial direction of the outer ring assembly.

[0011] Furthermore, a double earring support for mounting the cylinder is provided on the outer ring assembly; and a connecting piece connected to the piston rod is provided on the inner ring assembly.

[0012] Furthermore, it also includes two travel switches; the travel switch is fixedly installed on the hatch cover, and the pulley is against the inner ring component; the inner ring component is respectively provided with trigger grooves corresponding to the two pulleys.

[0013] Furthermore, the inner ring assembly includes a plurality of inner ring plug plates; the inner ring plug plates are arc-shaped and connected end to end; two adjacent inner ring plug plates are connected by an inner ring connecting plate; and sliders are respectively provided on the outer sides of the inner ring plug plates.

[0014] Furthermore, the outer ring assembly includes a plurality of outer ring plug plates; the outer ring plug plates are arc-shaped and connected end to end; two adjacent outer ring plug plates are connected by an outer ring connecting plate; the inner side of the outer ring plug plate is fitted with the outer side of the inner ring plug plate.

[0015] Furthermore, the connecting mechanism includes locking screws; the locking screws are vertically installed on the cabin body and are evenly arranged along the circumferential direction.

[0016] The advantages and positive effects of this application are:

[0017] The technical solution realizes the relative sliding of the slider in the slide groove by relative rotation of the inner ring component and the outer ring component, so that the first groove and the second groove are connected or separated. In the separated state, the connecting mechanism can pass freely between the slider and the slide groove; after the connection, only the through hole surrounded by the first groove and the second groove remains between the slider and the slide groove, and the connection mechanism can limit the passage through the convex edge; the relative movement direction of the connecting mechanism and the locking mechanism is perpendicular to the relative movement direction of the slider and the slide groove, the locking effect is good, and the structure is simple.

[0018] Furthermore, by installing a cylinder between the inner ring assembly and the outer ring assembly, the relative sliding movement of the slider and the slide groove can be completed by simply controlling the extension and contraction of the cylinder, thereby completing locking or loosening and realizing automatic control.

[0019] Furthermore, the travel switch can detect the current position of the inner ring assembly and provide feedback on the current working status, which can effectively avoid erroneous operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the locking device provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of the cabin of the locking device provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of the structure of a travel switch of a locking device provided in an embodiment of the present application.

[0023] The text markings in the figure are as follows: 100-hatch cover; 200-cabin body; 300-clip; 310-limit block; 320-cylinder; 321-piston rod; 330-double earring support; 340-connecting piece; 350-travel switch; 351-pulley; 352-trigger groove; 400-inner ring plug plate; 410-inner ring connecting plate; 420-slider; 500-outer ring plug plate; 510-outer ring connecting plate; 520-slide groove; 600-locking screw. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is described in detail below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present application.

[0025] Please refer to Figure 1 The present embodiment provides a locking device, including a locking mechanism and a connecting mechanism; the locking mechanism includes an inner ring assembly and an outer ring assembly that fit each other and can rotate relative to each other; the inner ring assembly includes a plurality of inner ring plug plates 400, the inner ring plug plates 400 are arc-shaped, connected end to end to form a ring, and two adjacent inner ring plug plates 400 are fixed by an inner ring connecting plate 410; the outer ring assembly includes a plurality of outer ring plug plates 500, the outer ring plug plates 500 are also arc-shaped, the inner diameter of the outer ring plug plates 500 corresponds to the outer diameter of the inner ring plug plates 400, connected end to end to form a ring, and two adjacent outer ring plug plates 500 are fixed by the outer ring connecting plate 510; the inner ring plug plates 400 are close to the outer A convex slider 420 is provided on one side of the ring insert plate 500, and the slider 420 is integrally formed with the inner ring insert plate 400; a concave slide groove 520 is provided on the outer ring insert plate 500 corresponding to the slider 420, and the slide groove 520 is arranged along the circumferential direction of the outer ring insert plate 500; a semicircular first groove is provided at one end of the slider 420 along the movement direction; a corresponding second groove is provided on the slide groove 520 corresponding to the first groove; the first groove and the second groove are connected to form a circular through hole; the connecting mechanism includes a locking screw 600 corresponding to the inner diameter of the circular through hole, and the locking mechanism and the connecting mechanism are locked along the axial direction through the convex edge.

[0026] Please refer to further Figure 2 In a preferred embodiment, the locking mechanism is installed on the hatch cover 100, and the connecting mechanism is installed on the cabin body 200. In other embodiments of the present application, the locking mechanism may also be installed on the cabin body 200, and the connecting mechanism may be installed on the hatch cover 100.

[0027] In a preferred embodiment, the locking mechanism is installed on the hatch cover 100 through a buckle 300; the buckle 300 is U-shaped and is installed on the hatch cover 100 in an inverted manner; the inner ring plug plate 400 and the outer ring plug plate are located in the slot of the buckle 300, the width of the slot corresponds to the sum of the widths of the inner ring plug plate 400 and the outer ring plug plate 500, and the height corresponds to the height of the inner ring plug plate 400 and the outer ring plug plate 500, which is used to limit the movement of the inner ring assembly and the outer ring assembly in the radial and axial directions.

[0028] In a preferred embodiment, a limit block 310 is also installed on the hatch cover 100, and a strip hole is provided on the inner ring plug plate 400 along the circumferential direction, and the length of the strip hole corresponds to the rotation stroke of the inner ring plug plate 400; the limit block 310 is U-shaped, and is inverted and clamped on the strip hole to limit the maximum rotation angle of the inner ring assembly.

[0029] In a preferred embodiment, the relative rotation between the inner ring assembly and the outer ring assembly is driven by the cylinder 320, and the cylinder body and the piston rod of the cylinder 320 are respectively hinged on the outer ring assembly and the inner ring assembly, and the hinge axis is in the same direction as the axial line of the inner ring assembly. Therefore, the cylinder 320 can control the relative rotation of the inner ring assembly and the outer ring assembly by telescoping, so that the first groove and the second groove are docked or separated to complete the locking or loosening action.

[0030] In a preferred embodiment, the cylinder body of the cylinder 320 is mounted on any outer ring insert plate 500 via a double clevis support 330 , the double clevis support 330 is fixedly mounted on the outer ring insert plate 500 , and the cylinder body of the cylinder 320 is hinged on the double clevis support 330 .

[0031] In a preferred embodiment, the piston rod 321 of the cylinder 320 is installed on the corresponding inner ring insert plate 400 through a connecting piece 340; a mounting shaft is provided on the connecting piece 340 along the axial direction of the inner ring assembly, and the piston rod 321 is rotatably connected to the mounting shaft through a single-ear joint bearing.

[0032] Please refer to further Figure 3 In a preferred embodiment, two travel switches 350 are further installed on the hatch 100, and the pulley 351 of the travel switch 350 is against the corresponding inner ring plug plate 400. The inner ring plug plate 400 is provided with trigger grooves 352 corresponding to the two travel switches 350. The two trigger positions correspond to the two extreme positions of the rotation of the inner ring assembly. Therefore, the current locking state can be grasped in real time through the feedback of the travel switch 350 to avoid incorrect operation.

[0033] In a preferred embodiment, the locking screws 600 are vertically mounted on the cabin body 200 and are evenly arranged along the circumferential direction, corresponding to the circular through holes formed by the first groove and the second groove.

[0034] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A locking device, characterized in that: It includes a locking mechanism and a connecting mechanism; The locking mechanism comprises an inner ring component and an outer ring component which fit each other and can rotate relatively; The inner ring assembly comprises a plurality of inner ring insert plates (400), the inner ring insert plates (400) being arc-shaped and connected end to end to form a ring, and two adjacent inner ring insert plates (400) being fixed by an inner ring connecting plate (410); The outer ring assembly comprises a plurality of outer ring insert plates (500), the outer ring insert plates (500) also being arc-shaped, with inner diameters corresponding to the outer diameters of the inner ring insert plates (400), being connected end to end to form a ring, and two adjacent outer ring insert plates (500) being fixed by an outer ring connecting plate (510); A protruding slider (420) is provided on one side of the inner ring insert plate (400) close to the outer ring insert plate (500), and the slider (420) is integrally formed with the inner ring insert plate (400); An inwardly concave sliding groove (520) is provided on the outer ring insert plate (500) corresponding to the sliding block (420), and the sliding groove (520) is arranged along the circumferential direction of the outer ring insert plate (500); A first semicircular groove is provided at one end of the slider (420) along the movement direction, and a corresponding second groove is provided on the slide groove (520) corresponding to the first groove, and the first groove and the second groove are connected to form a circular through hole; The connecting mechanism comprises a locking screw (600) corresponding to the inner diameter of the circular through hole, and the locking mechanism and the connecting mechanism are locked along the axial direction through the convex edge; The locking mechanism and the connecting mechanism are respectively mounted on the cabin cover (100) and the cabin body (200); A limit block (310) is fixedly mounted on the hatch cover (100) for limiting the rotation angle of the inner ring assembly; a strip-shaped hole is provided on the inner ring assembly corresponding to the limit block (310); The locking screws (600) are vertically mounted on the cabin body (200) and are evenly arranged along the circumferential direction; After the first groove and the second groove are butted against each other, only the circular through hole remains between the slider (420) and the slide groove (520), and the connection mechanism can restrict the passage through the convex edge; the relative movement direction between the connection mechanism and the locking mechanism is perpendicular to the relative movement direction between the slider (420) and the slide groove (520).

2. The locking device according to claim 1, characterized in that: It also includes a buckle (300); the inner ring assembly and the outer ring assembly are rotatably mounted on the hatch cover (100) via the buckle (300); the buckle (300) is fixedly mounted on the hatch cover (100) and is used to limit the movement of the inner ring assembly and the outer ring assembly in radial and axial directions.

3. The locking device according to claim 1, characterized in that: It also includes a cylinder (320); the cylinder (320) is hinged on the outer ring assembly, the piston rod (321) is hinged on the inner ring assembly, and the hinge axis is arranged along the axial direction of the outer ring assembly.

4. The locking device according to claim 3, characterized in that: The outer ring assembly is provided with a double earring support (330) for mounting the cylinder (320); and the inner ring assembly is provided with a connecting piece (340) connected to the piston rod (321).

5. The locking device according to claim 1, characterized in that: It also includes two travel switches (350); the travel switches (350) are fixedly mounted on the hatch cover (100), and the pulley (351) abuts against the inner ring assembly; and the inner ring assembly is provided with trigger grooves (352) corresponding to the two pulleys (351), respectively.

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