CN112664082A

CN112664082A - Locking hinge, locking mechanism, telescopic pin mechanism and military vehicle

Info

Publication number: CN112664082A
Application number: CN202011528263.1A
Authority: CN
Inventors: 樊云; 陈利; 赵凤云; 王璜; 孙龙飞
Original assignee: Dongfeng Off Road Vehicle Co Ltd
Current assignee: Dongfeng Off Road Vehicle Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-04-16

Abstract

The invention discloses a locking hinge, a locking mechanism, a telescopic pin mechanism and a military vehicle, wherein the locking hinge comprises: the hinge mechanism, the connecting rod mechanism and the telescopic pin mechanism; the hinge mechanism comprises a hinge fixed page plate and a hinge movable page plate which are connected in a rotating way; the connecting rod mechanism comprises a first connecting rod and a second connecting rod which are rotatably connected, the first connecting rod is rotatably connected with the hinge movable leaf plate, and the second connecting rod is rotatably connected with the hinge fixed leaf plate, so that the hinge fixed leaf plate, the hinge movable leaf plate, the first connecting rod and the second connecting rod form a hinge four-connecting-rod structure; one of the connecting rods is provided with a locking hole corresponding to the telescopic pin mechanism; the telescopic pin mechanism comprises a telescopic pin and a telescopic mechanism, and the telescopic mechanism can drive the telescopic pin to extend into the locking hole so as to lock the hinge fixed page plate and the hinge movable page plate at a preset angle. The invention realizes that the vehicle door can be used as a shield, can also be used in scenes of carrying goods by locking the vehicle door during slope parking, and the like, and meets the tactical requirements of military vehicles and special uses of carrying goods, and the like.

Description

Locking hinge, locking mechanism, telescopic pin mechanism and military vehicle

Technical Field

The invention belongs to the technical field of hinges, and particularly relates to a locking hinge, a locking mechanism, a telescopic pin mechanism and a military vehicle.

Background

The opening, closing and limiting functions of the conventional vehicle door are usually completed by a door hinge and a door stopper (the door hinge and the door stopper can also be made into a whole). The door stopper is used for limiting the opening degree of the vehicle door, on one hand, the vehicle door can be prevented from being opened too much, on the other hand, the vehicle door can be kept open at a certain angle, but the vehicle door cannot be kept in a locking state after being opened.

In the military vehicle field, for satisfying the tactics demand of army, the military vehicle door is opened and is need to possess the locking function to the biggest angle after, accessible manual operation locking, unblock door under vehicle quiescent condition or low-speed form state. The locked car door can be used as a shield and can also be used in scenes such as slope parking and locking of the car door for carrying goods. Therefore, there is a need in the art to develop a hinge that can maintain a locked state after being opened to meet the tactical requirements of military vehicles and special uses for carrying cargo.

Disclosure of Invention

In view of the above-identified deficiencies in the art or needs for improvement, the present invention provides a latch hinge, a latch mechanism, a retractable pin mechanism, and a military vehicle.

The invention discloses a locking hinge, comprising:

the locking mechanism comprises a connecting rod mechanism and a telescopic pin mechanism;

the hinge mechanism comprises a hinge fixed page plate and a hinge movable page plate which are connected in a rotating way;

the telescopic pin mechanism is arranged on the hinge mechanism;

the connecting rod mechanism comprises two connecting rods which are connected in a rotating mode, the two connecting rods comprise a first connecting rod and a second connecting rod, one end, far away from the second connecting rod, of the first connecting rod is connected with the hinge movable page plate in a rotating mode, one end, far away from the first connecting rod, of the second connecting rod is connected with the hinge fixed page plate in a rotating mode, and therefore the hinge fixed page plate, the hinge movable page plate, the first connecting rod and the second connecting rod form a hinge four-connecting-rod structure; one of the connecting rods is provided with a locking hole corresponding to the telescopic pin mechanism;

the telescopic pin mechanism comprises a telescopic pin and a telescopic mechanism, when the hinge fixed page plate and the hinge movable page plate rotate to a preset angle, the telescopic mechanism can drive the telescopic pin to extend into the locking hole, so that the hinge fixed page plate and the hinge movable page plate are locked at the preset angle.

Optionally, the telescopic mechanism comprises a telescopic pin knob, an elastic member and a telescopic body; the telescopic body is provided with a telescopic cavity corresponding to the telescopic pin, and the telescopic pin is movably inserted in the telescopic cavity; the telescopic cavity is of a variable diameter structure and comprises a first large-diameter section and a first small-diameter section, and the first large-diameter section and the first small-diameter section form a first shoulder; the telescopic pin is of a reducing structure and comprises a second large-diameter section and a second small-diameter section, and the second large-diameter section and the second small-diameter section form a second shoulder; the elastic piece is sleeved on the second small-diameter section, and two ends of the elastic piece are respectively abutted against the first shoulder part and the second shoulder part; the second small-diameter section penetrates through the first small-diameter section and then is connected with the telescopic pin knob; such that the resilient member is pre-compressed between the first shoulder and the second shoulder; the lateral wall in flexible chamber with flexible round pin knob corresponds respectively and is equipped with assorted spout or arch, the spout with protruding edge the axis direction in flexible chamber extends, works as hinge fixed page or leaf board with hinge activity page or leaf board rotates when predetermineeing the angle, and is rotatory flexible round pin knob makes protruding with the spout sets up relatively, protruding holding is located during the spout, flexible round pin is in stretch into under the elastic action of elastic component the locking hole.

Optionally, rotating the retractable pin knob such that the protrusion is offset from the slot, the resilient member being pre-compressed between the first shoulder and the second shoulder; or, the telescopic pin knob is rotated, so that the bulge and the sliding groove are arranged in a staggered mode, and the elastic piece is pre-compressed between the first shoulder part and the second shoulder part; when the protrusion and the sliding groove are arranged in a staggered mode, the protrusion is clamped in the groove.

Optionally, the sliding groove or the protrusion is disposed on an inner side wall of the telescopic pin knob, so that the telescopic pin knob is sleeved on an outer side of the telescopic body to hide the sliding groove and the protrusion.

Optionally, one end of the telescopic body, which is far away from one side of the telescopic pin knob, is in threaded connection with the hinge mechanism; and/or the outer side wall of the telescopic body protrudes outwards to form a ring wall, and the end surface of the ring wall close to one side of the telescopic pin knob is opposite to the telescopic pin knob; and a self-locking anti-loosening gasket is arranged between the end surface of the annular wall, which is far away from one side of the telescopic pin knob, and the hinge mechanism.

Optionally, more than one pair of components in the hinge fixed page plate and the hinge movable page plate, the first connecting rod and the second connecting rod, the first connecting rod and the hinge movable page plate, the second connecting rod and the hinge fixed page plate are in rotary connection through a rotating mechanism; the rotating mechanism comprises a pin shaft and a self-lubricating bearing sleeve; the pin shaft penetrates through more than one pair of the hinge fixed page plate and the hinge movable page plate which are connected in a rotating mode, the first connecting rod and the second connecting rod, the first connecting rod and the hinge movable page plate, and the second connecting rod and the hinge fixed page plate in sequence; the self-lubricating bearing sleeves are sleeved at two ends of the pin shaft.

Optionally, the hinge leaf comprises a first connecting leaf and a first connecting arm; the first connecting arm is provided with a first accommodating cavity corresponding to the first connecting rod, so that the end part of the first connecting rod, which is close to the first connecting arm, is accommodated in the first accommodating cavity, and the first connecting rod is rotatably connected with the side wall of the first accommodating cavity; the hinge fixing plate comprises a second connecting plate and a second connecting arm; the second connecting arm is provided with a second accommodating cavity corresponding to the second connecting rod, so that the second connecting rod is accommodated in the second accommodating cavity, and the second connecting rod is rotatably connected with the side wall of the second accommodating cavity; the second connecting rod is provided with a third accommodating cavity corresponding to the first connecting rod, so that one end of the first connecting rod, which is close to the second connecting rod, is accommodated in the third accommodating cavity, and the first connecting rod is rotatably connected with the side wall of the third accommodating cavity; the first connecting arm and the second connecting arm are provided with limiting parts corresponding to the preset angle, and the limiting parts are used for setting the maximum rotation angle of the hinge fixed page plate and the hinge movable page plate as the preset angle; and/or the hinge mechanism further comprises a rotating motor, and the rotating motor drives the hinge movable page plate to rotate around the hinge fixed page plate.

The invention also discloses a military vehicle, comprising: a vehicle body, a door, and the latch hinge of any one of the above; the hinge fixing plate of the locking hinge is connected with the vehicle body; and a hinge movable leaf plate of the locking hinge is connected with the vehicle door.

The invention also discloses a locking mechanism applied to the locking hinge, which comprises a connecting rod mechanism and a telescopic pin mechanism; the connecting rod mechanism comprises two connecting rods which are connected in a rotating mode, the two connecting rods comprise a first connecting rod and a second connecting rod, one end, far away from the second connecting rod, of the first connecting rod is connected with the hinge movable page plate in a rotating mode, one end, far away from the first connecting rod, of the second connecting rod is connected with the hinge fixed page plate in a rotating mode, and therefore the hinge fixed page plate, the hinge movable page plate, the first connecting rod and the second connecting rod form a hinge four-connecting-rod structure; one of the connecting rods is provided with a locking hole corresponding to the telescopic pin mechanism; the telescopic pin mechanism comprises a telescopic pin and a telescopic mechanism, when the hinge fixed page plate and the hinge movable page plate rotate to a preset angle, the telescopic mechanism can drive the telescopic pin to extend into the locking hole, so that the hinge fixed page plate and the hinge movable page plate are locked at the preset angle.

The invention also discloses a telescopic pin mechanism applied to the locking hinge, which comprises a telescopic pin and a telescopic mechanism, wherein when the hinge fixed page plate and the hinge movable page plate rotate to a preset angle, the telescopic mechanism can drive the telescopic pin to extend into the locking hole so as to lock the hinge fixed page plate and the hinge movable page plate at the preset angle.

In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:

1. according to the invention, the problem that the existing door cannot keep a locked state after the door is opened is solved ingeniously through the matching of the telescopic pin and the locking hole, so that the door of a military vehicle and the like need to have a locking function after being opened to a maximum angle, and the door can be locked and unlocked through operation in a static state or a low-speed state of the vehicle. And the door after the locking can be used as a shield, also can be used for scenes such as slope parking locking door transport goods, satisfies special uses such as military vehicle's tactics demand and transport goods. Preferably, the invention integrates the functions of opening and closing the vehicle door and opening and locking the vehicle door.

2. According to the invention, the automatic ejection of the telescopic pin can be realized by rotating the telescopic pin knob, and the telescopic pin can extend into the locking hole to realize the locking of the hinge fixed page plate and the hinge movable page plate, so that the realization mode is very convenient, the time consumption is short, and the locking is timely and reliable.

3. According to the invention, the rotary telescopic pin knob is matched with the telescopic body through the bulge, the chute and the groove, so that the locking and unlocking of the fixed hinge plate and the movable hinge plate of the hinge are simply and reliably realized, the locking function is realized through the matching of the telescopic pin and the telescopic body, the linearity of the telescopic pin in the locking and unlocking process is ensured by the movable insertion of the telescopic pin in the telescopic body, and the accurate matching of the telescopic pin and the locking hole is ensured (the locking hole can move along with the second connecting rod in the opening and closing process) when the angle is preset between the fixed hinge plate and the movable hinge plate of the hinge. Through the matching of the protrusions with the grooves and the sliding grooves respectively, the hand feeling of the telescopic pin knob in the locking and unlocking switching process can be sensed when the telescopic pin knob is rotated (the telescopic pin knob has the tendency of self-moving towards the grooves and one side of the sliding grooves for sensing by the aid of the elastic force of the spring), and whether the telescopic pin knob is rotated in place can be accurately judged; more excellent, rotatory flexible round pin knob cover is located the outside of flexible body and is hidden arch, spout and recess for flexible round pin inner structure does not expose in the external world, plays dustproof effect, thereby guarantees flexible round pin mechanism's stability and reliability of operation. More excellent, the auto-lock locking gasket can effectively prevent driving in-process telescopic pin not hard up.

4. According to the invention, the first connecting rod and the second connecting rod are stacked on the hinge fixed page plate and the hinge movable page plate through the accommodating cavities, so that the space occupation of the locking hinge is greatly reduced, and the structure of the locking hinge is more compact and small.

Drawings

FIG. 1 is a schematic structural view of one embodiment of a locking hinge of the present invention;

FIG. 2 is an exploded view of one embodiment of the locking hinge of the present invention;

FIG. 3 is a schematic structural view of one embodiment of the locking hinge of the present invention in a closed state;

FIG. 4 is a schematic structural view of one embodiment of the check link of the present invention in an open position;

FIG. 5 is a schematic structural diagram of an embodiment of the latch hinge of the present invention switching between a closed state and an open state;

FIG. 6 is a schematic structural view of another embodiment of the locking hinge of the present invention;

FIG. 7 is a schematic view of the cross-sectional view A-A of FIG. 6;

FIG. 8 is a schematic structural view of an embodiment of the retractable pin mechanism of the present invention;

FIG. 9 is a schematic view of an embodiment of the retractable pin of FIG. 8 in a retracted state;

fig. 10 is a schematic structural view of an embodiment of the telescopic pin of fig. 8 in an extended state.

In all the figures, the same reference numerals denote the same features, in particular: 1-hinge mechanism, 11-hinge movable leaf plate, 111-first connecting leaf plate, 1111-first joint surface, 112-first connecting arm, 113-first accommodating cavity, 114-third rotating connecting hole, 115-first rotating avoiding position, 116-first joint part, 12-hinge fixed leaf plate, 121-second connecting leaf plate, 1211-second joint surface, 122-second connecting arm, 123-second accommodating cavity, 124-first rotating connecting hole, 125-fourth rotating connecting hole, 126-threaded hole, 127-second joint part, 21-connecting rod mechanism, 211-first connecting rod, 212-second connecting rod, 213-third accommodating cavity, 214-second rotating connecting hole, 215-locking hole, 216-second rotating avoiding position, 22-telescopic pin mechanism, 221-telescopic pin, 2211-second large-diameter section, 2212-second small-diameter section, 2213-second shoulder, 222-telescopic pin knob, 223-elastic piece, 224-telescopic body, 2241-telescopic cavity, 2242-first large-diameter section, 2243-first small-diameter section, 2244-first shoulder, 2245-ring wall, 2246-sliding groove, 2247-groove, 2248-external thread, 23-self-locking gasket, 311-pin I, 312-pin II, 313-pin III, 314-pin IV, 321-self-lubricating bearing bush I, 322-self-lubricating bearing bush II, 323-self-lubricating bearing bush III and 324-self-lubricating bearing bush IV.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In one embodiment of the present invention, as shown in fig. 1-10, a locking hinge comprises: the hinge mechanism 1 and a locking mechanism, wherein the locking mechanism comprises a link mechanism 21 and a telescopic pin mechanism 22; the hinge mechanism 1 comprises a hinge fixed leaf plate 12 and a hinge movable leaf plate 11 which are connected in a rotating way; the telescopic pin mechanism 22 is mounted on the hinge mechanism 1; the link mechanism 21 comprises two links which are rotatably connected, the two links comprise a first link 211 and a second link 212, one end of the first link 211, which is far away from the second link 212, is rotatably connected with the hinge movable leaf 11, and one end of the second link 212, which is far away from the first link 211, is rotatably connected with the hinge fixed leaf 12, so that the hinge fixed leaf 12, the hinge movable leaf 11, the first link 211 and the second link 212 form a hinge four-link structure; one of the links (the first link 211 or the second link 212) is provided with a locking hole 215 corresponding to the retractable pin mechanism 22; the retractable pin mechanism 22 includes a retractable pin 221 and a retractable mechanism, and when the hinge fixed leaf 12 and the hinge movable leaf 11 rotate to a preset angle, the retractable mechanism can drive the retractable pin 221 to extend into the locking hole 215 to lock the hinge fixed leaf 12 and the hinge movable leaf 11 at the preset angle.

It should be noted that, in practical application, the preset angle may be one or more, and specifically, the preset angle is set according to a scene of practical application, if the locking hinge is applied to a military vehicle, only one preset angle is needed, and when the preset angle is the maximum opening angle of the vehicle door, the preset angle is the maximum opening angle of the vehicle door. Of course, when the locking hinge is applied to a window or a box, a plurality of preset angles may be set as required, and if the preset angle may be one or more of 30 °, 60 °, 90 °, 120 °, 150 °, and the like, the corresponding locking holes 215 are correspondingly provided in a plurality. The locking hole 215 may be a groove 2247, a through hole, a blind hole, or the like. Optionally, the telescopic pin 221 is of a reducing structure near the locking hole 215, and a small-diameter end of the telescopic pin 221 is disposed near the locking hole 215, so that the telescopic pin 221 can extend into the locking hole 215. Preferably, the locking hole 215 is preferably elongated to improve an error allowance with which the telescopic pin 221 is fitted.

In one embodiment of the present invention, the locking hole 215 is disposed in the second link 212, the retractable pin mechanism 22 is mounted on the hinge fixed leaf 12, and the second link 212 and the hinge fixed leaf 12 are fixed by the cooperation of the retractable pin 221 and the locking hole 215, according to the principle of the four-bar hinge structure, when two links (the second link 212 and the hinge fixed leaf 12) of the four-bar hinge structure are fixed (or relatively fixed), the four-bar hinge structure is locked, and the other two links (the first link 211 and the hinge movable leaf 11) are also locked. When the telescopic pin mechanism 22 does not lock the hinge mechanism 1, the hinge four-bar linkage structure is linked along with the relative rotation of the hinge movable leaf 11 and the hinge fixed leaf 12 of the hinge mechanism 1, and at the moment, the rotation of the hinge movable leaf 11 and the hinge fixed leaf 12 can freely rotate within the rotation angle range.

Of course, in another embodiment of the present invention, the locking hole 215 is provided in the first link 211, and the retractable pin mechanism 22 is mounted to the hinge leaf 11. Alternatively, the locking hole 215 is provided in the first link 211, and the retractable pin mechanism 22 is attached to the hinge fixing sheet 12. Alternatively, the locking hole 215 may be provided in the second link 212, and the retractable pin mechanism 22 may be attached to the hinge plate 11. And will not be described further herein.

Optionally, the telescoping mechanism comprises a telescoping pin knob 222, an elastic member 223, and a telescoping body 224; the telescopic body 224 is provided with a telescopic cavity 2241 corresponding to the telescopic pin 221, and the telescopic pin 221 is movably inserted in the telescopic cavity 2241; the telescopic cavity 2241 is of a variable-diameter structure and comprises a first large-diameter section 2242 and a first small-diameter section 2243, and the first large-diameter section 2242 and the first small-diameter section 2243 form a first shoulder 2244; the telescopic pin 221 has a diameter-variable structure, and includes a second large-diameter section 2211 and a second small-diameter section 2212, and the second large-diameter section 2211 and the second small-diameter section 2212 form a second shoulder 2213; the elastic member 223 is sleeved on the second small-diameter section 2212, and two ends of the elastic member 223 respectively abut against the first shoulder 2244 and the second shoulder 2213; the second small-diameter section 2212 penetrates through the first small-diameter section 2243 and is connected with the telescopic pin knob 222; such that resilient member 223 is pre-compressed between first shoulder 2244 and second shoulder 2213; the lateral wall and the flexible round pin knob 222 of flexible chamber 2241 correspond respectively and are equipped with assorted spout 2246 or arch, the axis direction that flexible chamber 2241 is followed to spout 2246 and arch extends, when hinge fixed page board 12 and hinge activity page board 11 rotate to predetermineeing the angle, rotatory flexible round pin knob 222 for make protruding and spout 2246 set up relatively, when spout 2246 was located to protruding appearance, the locking hole 215 is stretched into to flexible round pin 221 under the spring action of elastic component 223.

It should be noted that, when the protrusion is disposed on the retractable pin knob 222, the sliding slot 2246 is disposed on the retractable body 224; when the slide groove 2246 is disposed on the retractable pin knob 222, the protrusion is disposed on the retractable body 224. The elastic member 223 may be a spring or a cylindrical structure having an elastic deformation capability.

Optionally, a protrusion is disposed on the retractable pin knob 222, and the sliding slot 2246 is disposed on the retractable body 224. Specifically, the retractable pin knob 222 includes a knob body and a cylindrical wall, the cylindrical wall is formed by extending the knob body toward the retractable body 224, the outer diameter of the knob body is larger than the outer diameter of the cylindrical wall, the protrusion is disposed on the cylindrical wall, the protrusion may be formed by protruding the sidewall of the cylindrical wall toward the retractable body 224, or may be formed by protruding the inner sidewall of the cylindrical wall radially inward, and the extending direction of the protrusion is parallel to the extending direction of the cylindrical wall, and slides into the sliding groove 2246 in the rotation process of the retractable pin knob 222 together with the protrusion. It should be noted that when the protrusion is formed by the side wall of the cylindrical wall, there is a certain gap between the protrusion and the telescopic body 224 due to the protrusion, so that foreign matters (such as dust or particles) may enter the telescopic cavity 2241 through the gap to affect the reciprocating motion of the telescopic pin 221, thereby causing the locking failure of the present invention. Therefore, the protrusion of the present invention is preferably disposed on the inner sidewall of the cylindrical wall (or the inner sidewall of the telescopic body 224), so that the cylindrical wall provided with the protrusion can cover the sliding slot 2246 and the protrusion at the same time, so as to hide the sliding slot 2246 and the protrusion, so that there is no gap between the cylindrical wall and the telescopic body 224 due to the protrusion, and thus, the effects of dust prevention and the like are achieved, thereby ensuring the effectiveness and reliability of locking the telescopic pin 221.

Optionally, the outer side wall of the knob body is provided with a friction surface, and the friction surface may be formed by a rough surface formed by raised grains or concave-convex grooves, so as to facilitate manual quick rotation of the retractable pin knob 222 for quick locking and unlocking.

Optionally, the knob body is threaded with the retractable pin 221 to achieve securement of the two. Of course, in another embodiment of the present invention, the knob body may also realize the connection of the telescopic pin 221 to itself through a strong press fit.

In practical application, when the rotation of the retractable pin knob 222 can be automatically rotated by manual rotation or driving of a driving mechanism, such as a lifting rotating cylinder, a combination of a linear driving mechanism and a rotating mechanism (i.e. a lifting rotating mechanism) and the like, the operation can be performed by a button or a preset angle selection mode, so that two objects connected by the locking hinge can be automatically opened (the movable hinge plate 11 can be automatically rotated around the fixed hinge plate 12 by the rotating motor) and the locking function can be realized by rotating the retractable pin knob 222, and the setting can be specifically performed according to practical application scenes, which is not repeated herein.

Optionally, rotating the telescoping pin knob 222 such that the protrusion is offset from the slide slot 2246, the resilient member 223 is pre-compressed between the first and

second shoulders

2244 and 2213. When the locking state needs to be unlocked, the telescopic pin knob 222 is lifted to compress the spring, and the telescopic pin knob 222 is rotated reversely, so that the protrusion is separated from the sliding groove 2246 and is arranged oppositely with the sliding groove 2246 along the axis direction of the telescopic cavity 2241 in a staggered manner, the protrusion abuts against the position where the sliding groove 2246 is not arranged on the telescopic body 224 at the moment, the spring is in a pre-compression state, and the hinge movable leaf plate 11 can freely rotate around the hinge fixed leaf plate 12 in the operation rotation angle at the moment.

Optionally, when the protrusion is disposed in a position offset from the sliding groove 2246, the protrusion is engaged with the groove 2247. Whether rotatory to the position of judging flexible round pin knob 222 for the convenience is artificial through feeling, position through not setting up spout 2246 at flexible chamber 2241 lateral wall sets up recess 2247, make protruding tip at rotatory in-process can hold and locate this recess 2247, because the elastic force effect of spring, make flexible round pin knob 222 when protruding relative setting with recess 2247, flexible round pin knob 222 has the trend towards the bottom one side motion of recess 2247, thereby judge flexible round pin knob 222 soon and rotate to target in place, can stop rotatory flexible round pin knob 222 this moment, make the arch hold and locate this recess 2247. More preferably, the lateral wall of recess 2247 still can play good limiting displacement to the arch, avoids telescopic pin knob 222 to take place the auto-rotation phenomenon and appear the popping out of telescopic pin 221 and the locking of angle of predetermineeing not appearing because of unfavorable factors such as collision among this locking hinge motion process, has guaranteed the reliability and the stability of this locking hinge operation. Preferably, to further facilitate manual rotation of the retractable pin knob 222, the center angle of the groove 2247 and the slide slot 2246 is preferably 90 °, 180 °, or the like, which is manually easy to operate. Of course, when the retractable pin knob 222 is mechanically and automatically rotated, the angle thereof may be controlled directly by programming or a circuit, and the groove 2247 mainly plays a role in limiting.

Optionally, the end of the telescopic body 224 away from the telescopic pin knob 222 is screwed with the hinge fixed leaf 12 (or the hinge movable leaf 11). The telescopic body 224 and the hinge fixed leaf 12 (or the hinge movable leaf 11) can enable the telescopic body 224 to be contained in the hinge fixed leaf 12 (or the hinge movable leaf 11), so that the structure compactness of the invention is improved. Exemplarily, when the flexible body 224 is screwed on the hinge fixed page plate 12, the flexible body 224 is provided with the external thread 2248, correspondingly, the hinge fixed page plate 12 is provided with the threaded hole 126, and the external thread 2248 is in threaded fit with the threaded hole 126, so that the telescopic pin mechanism 22 can be disassembled and assembled by screwing in and out, and the use is very convenient and easy to replace.

Optionally, the outer side wall of the telescopic body 224 protrudes outwards to form a ring wall 2245, and the end surface of the ring wall 2245 close to one side of the telescopic pin knob 222 is arranged opposite to the telescopic pin knob 222; a self-locking anti-loosening gasket 23 is arranged between the end surface of the ring wall 2245 far away from the telescopic pin knob 222 and the hinge fixed leaf plate 12 (or the hinge movable leaf plate 11). The arrangement of the ring wall 2245 is convenient for confirming whether the telescopic body 224 is screwed in place with the hinge mechanism 1, and simultaneously, the telescopic pin mechanism 22 can be quickly assembled and disassembled in the hinge mechanism 1 by rotating the telescopic body 224 through the ring wall 2245. Alternatively, the outer side wall of the ring wall 2245 is provided with a friction surface, which may be constituted by a rough surface formed by a wave or a groove and a groove. In practical application, the number of the self-locking anti-loosening gaskets 23 can be set according to actual needs, and the telescopic pin mechanism can be effectively prevented from loosening in the driving process through the self-locking anti-loosening gaskets 23. Thereby ensuring stability and reliability of operation of the telescopic pin mechanism 22.

Optionally, more than one pair of the hinge fixed leaf 12 and the hinge movable leaf 11, the first connecting rod 211 and the second connecting rod 212, the first connecting rod 211 and the hinge movable leaf 11, the second connecting rod 212 and the hinge fixed leaf 12 are in rotary connection through a rotating mechanism; the rotating mechanism comprises a pin shaft and a self-lubricating bearing sleeve; the pin shaft penetrates through more than one pair of the hinge fixed leaf plate 12 and the hinge movable leaf plate 11 which are connected in a rotating mode, the first connecting rod 211 and the second connecting rod 212, the first connecting rod 211 and the hinge movable leaf plate 11, the second connecting rod 212 and the hinge fixed leaf plate 12 in sequence; the self-lubricating bearing sleeves are sleeved at two ends of the pin shaft.

Specifically, as shown in fig. 2, the hinge fixed leaf 12 and the hinge movable leaf 11 are rotatably connected through a first rotating mechanism, the first rotating mechanism includes a first pin shaft 311 and a first self-lubricating bearing sleeve 321, the hinge fixed leaf 12 and the hinge movable leaf 11 are both provided with a coaxial first rotating connection hole 124 corresponding to the hinge point thereof, the first pin shaft 311 penetrates through the first rotating connection hole 124, and two ends of the first pin shaft 311 are respectively sleeved with the first self-lubricating bearing sleeve 321. In practical application, the first pin shaft 311 is rigidly fixed on the fixed hinge leaf 12 by adopting a riveting process, and the first self-lubricating bearing sleeve 321 is arranged in the first rotating connecting hole 124 of the movable hinge leaf 11, so that the fixed hinge leaf 12 and the movable hinge leaf 11 can rotate mutually, the first self-lubricating bearing sleeve 321 does not need to be maintained by adding lubricating oil regularly, the wear resistance of the first rotating mechanism can be improved, and the fixed hinge leaf 12 and the movable hinge leaf 11 can rotate smoothly. Of course, in another embodiment of the present invention, the first pin 311 can also be fixedly installed on the hinge moving leaf 11, and the first self-lubricating bearing sleeve 321 is installed on the first rotation connecting hole 124 of the hinge fixed leaf 12.

First connecting rod 211 and second connecting rod 212 rotate through the second slewing mechanism and are connected, the second slewing mechanism includes round pin axle two 312 and self-lubricating bearing cover two 322, first connecting rod 211 and second connecting rod 212 correspond its pin joint and all are equipped with coaxial second and rotate connecting hole 214, round pin axle two 312 runs through second and rotate connecting hole 214, and the both ends of round pin axle two 312 overlap self-lubricating bearing cover two 322 respectively, in practical application, round pin axle two 312 adopts riveting process rigidity to fix on second connecting rod 212, and self-lubricating bearing cover two 322 is installed in first connecting rod 211's second and rotate connecting hole 214, make second connecting rod 212 and first connecting rod 211 can realize the rotation of each other, self-lubricating bearing cover two 322 need not regularly add the lubricating oil maintenance, can improve second slewing mechanism wearability, make second connecting rod 212 and first connecting rod 211 rotate the smoothness. Of course, in another embodiment of the present invention, the second pin 312 may also be fixedly installed on the first link 211, and the second self-lubricating bearing sleeve 322 is installed on the second rotation connection hole 214 of the second link 212.

The first connecting rod 211 is rotatably connected with the hinge movable leaf 11 through a third rotating mechanism, the third rotating mechanism comprises a third pin shaft 313 and a third self-lubricating bearing sleeve 323, the first connecting rod 211 and the hinge movable leaf 11 are respectively provided with a coaxial third rotating connecting hole 114 corresponding to the hinge point, the third pin shaft 313 penetrates through the third rotating connecting hole 114, and the two ends of the third pin shaft 313 are respectively sleeved with the third self-lubricating bearing sleeve 323. Of course, in another embodiment of the present invention, the third pin 313 may also be fixedly installed on the first link 211, and the third self-lubricating bearing sleeve 323 is installed on the third rotation connecting hole 114 of the hinge movable leaf 11.

The second connecting rod 212 is rotatably connected with the hinge fixed page plate 12 through a fourth rotating mechanism, the fourth rotating mechanism comprises a pin shaft four 314 and a self-lubricating bearing sleeve four 324, the hinge fixed page plate 12 and the second connecting rod 212 are respectively provided with a coaxial fourth rotating connecting hole 125 corresponding to the hinge point, the pin shaft four 314 penetrates through the fourth rotating connecting hole 125, and two ends of the pin shaft four 314 are respectively sleeved with the self-lubricating bearing sleeve four 324, in practical application, the pin shaft four 314 is rigidly fixed on the hinge fixed page plate 12 through a riveting process, and the self-lubricating bearing sleeve four 324 is installed in the fourth rotating connecting hole 125 of the second connecting rod 212, so that the second connecting rod 212 and the hinge fixed page plate 12 can rotate mutually, the self-lubricating bearing sleeve four 324 does not need to be periodically added with lubricating oil for maintenance, the wear resistance of the fourth rotating mechanism can be improved, and the second connecting rod 212 and the hinge fixed page plate 12 can rotate smoothly. Of course, in another embodiment of the present invention, the pin shaft four 314 may also be fixedly installed on the second connecting rod 212, and the self-lubricating bearing sleeve four 324 is installed on the fourth rotation connecting hole 125 of the hinge fixing sheet 12.

Optionally, the hinge leaf 11 comprises a first connecting leaf 111 and a first connecting arm 112; the first connecting arm 112 is provided with a first accommodating cavity 113 corresponding to the first connecting rod 211, so that the end part of the first connecting rod 211 close to the first connecting arm 112 is accommodated in the first accommodating cavity 113, and the first connecting rod 211 is rotatably connected with the side wall of the first accommodating cavity 113; the hinge fixing sheet 12 comprises a second connecting sheet 121 and a second connecting arm 122; the second connecting arm 122 is provided with a second accommodating cavity 123 corresponding to the second connecting rod 212, so that the second connecting rod 212 is accommodated in the second accommodating cavity 123, and the second connecting rod 212 is rotatably connected with the side wall of the second accommodating cavity 123; the second connecting rod 212 is provided with a third accommodating cavity 213 corresponding to the first connecting rod 211, so that one end of the first connecting rod 211 close to the second connecting rod 212 is accommodated in the third accommodating cavity 213, and the first connecting rod 211 is rotatably connected with the side wall of the third accommodating cavity 213; the first connecting arm 112 and the second connecting arm 122 are provided with a limiting portion corresponding to a preset angle, so as to set the maximum rotation angle of the hinge fixed sheet 12 and the hinge movable sheet 11 to the preset angle.

Optionally, hinge points (i.e., the first rotating mechanism, the third rotating mechanism and the fourth rotating mechanism) of the hinge moving leaf plate 11 and the hinge fixed leaf plate 12 are correspondingly arranged on the first connecting arm 112 (i.e., the first rotating mechanism and the third rotating mechanism) and the second connecting arm 122 (i.e., the first rotating mechanism and the fourth rotating mechanism), an end portion of the first connecting arm 112 close to one side of the second connecting arm 122 is also accommodated in the first accommodating cavity 113, and the first connecting arm 112 corresponds to the second connecting arm 122, in order to ensure smoothness of relative rotation of the hinge moving leaf plate 11 and the hinge fixed leaf plate 12, an end portion of the first connecting arm 112 corresponding to the second connecting arm 122 close to the first connecting arm 112 is provided with a first rotation avoiding position 115; in order to ensure the smoothness of the relative rotation between the first link 211 and the second link 212, a second rotation avoiding position 216 is disposed at the end of the first link 211, which is close to the first link 211, corresponding to the second link 212.

Optionally, in order to facilitate the installation and connection of the first connecting leaf 111 and the second connecting leaf 121 to various installation components (such as a vehicle body and a vehicle door, a box body and a box cover, etc., a window and a window sash, a door frame and a door, etc.), an end surface of the first connecting leaf 111 on a side away from the first connecting arm 112 is a first abutting surface 1111, which is used for being connected with a rotating body (such as a vehicle door, a box cover, a window sash or a door, etc.), the first abutting surface 1111 is preferably a plane structure, and the first connecting leaf 111 is provided with a first connecting hole connected with the rotating body; similarly, the end surface of the second connecting leaf 121 on the side away from the second connecting arm 122 is a second abutting surface 1211, which is used for connecting with a fixed body (such as a car body, a box body, a window or a door frame, etc.), the second abutting surface 1211 is preferably of a planar structure, and the second connecting leaf 121 is provided with a second connecting hole connected with the fixed body.

Preferably, the first connecting arm 112 is provided with a first abutting portion 116 on a side close to the second connecting arm 122, the second connecting arm 122 is provided with a second abutting portion 127 close to the first connecting arm 112, and when the hinge fixed leaf 12 and the hinge movable leaf 11 rotate to a maximum angle, the first abutting portion 116 and the second abutting portion 127 will limit the hinge fixed leaf 12 and the hinge movable leaf 11 to rotate so as to limit the hinge fixed leaf 12 and the hinge movable leaf 11 to rotate within the maximum angle range. Illustratively, as shown in fig. 5, the maximum rotation angle of the hinge fixed leaf 12 and the hinge movable leaf 11 is set to 90 °, and when the hinge fixed leaf 12 and the hinge movable leaf 11 relatively rotate to 90 °, the first abutting portion 116 and the second abutting portion 127 abut against each other to restrict further rotation of the two. It should be noted that, in practical applications, the maximum rotation angle of the fixed hinge leaf 12 and the movable hinge leaf 11 may be set to other angles, specifically, set and selected according to the application scenario, and the preset angle and the maximum rotation angle may be equal or different.

In another embodiment of the present invention, different from the above embodiments, the hinge mechanism 1 of the present embodiment further includes a rotating motor, and the rotating motor drives the hinge movable sheet 11 to rotate around the hinge fixed sheet 12. Optionally, the retractable pin knob 222 is connected to the lifting and rotating mechanism to achieve automatic retraction of the retractable pin 221 in the retractable body 224, thereby achieving automatic locking and unlocking of the present invention.

In another embodiment of the present invention, as shown in FIGS. 1-10, a military vehicle includes: a vehicle body, a door, and the latch hinge of any one of the above; the hinge fixing plate 12 of the locking hinge is connected with the vehicle body; the hinge movable leaf plate 11 of the locking hinge is connected with the vehicle door.

In another embodiment of the present invention, as shown in fig. 1 to 10, a latch mechanism for a latch hinge application described in any one of the above, the latch mechanism includes a link mechanism 21 and a telescopic pin mechanism 22; the telescopic pin mechanism 22 is mounted on the hinge mechanism 1, the link mechanism 21 comprises two links which are rotatably connected, the two links comprise a first link 211 and a second link 212, one end of the first link 211, which is far away from the second link 212, is rotatably connected with the hinge movable leaf 11, and one end of the second link 212, which is far away from the first link 211, is rotatably connected with the hinge fixed leaf 12, so that the hinge fixed leaf 12, the hinge movable leaf 11, the first link 211 and the second link 212 form a hinge four-link structure; one of the links has a locking hole 215 corresponding to the retractable pin mechanism 22; the retractable pin mechanism 22 includes a retractable pin 221 and a retractable mechanism, and when the hinge fixed leaf 12 and the hinge movable leaf 11 rotate to a preset angle, the retractable mechanism can drive the retractable pin 221 to extend into the locking hole 215 to lock the hinge fixed leaf 12 and the hinge movable leaf 11 at the preset angle.

In another embodiment of the present invention, as shown in fig. 1 to 10, a retractable pin mechanism for a latching hinge as described in any one of the above, the retractable pin mechanism 22 is mounted on the hinge mechanism 1, the retractable pin mechanism 22 includes a retractable pin 221 and a retractable mechanism, and when the hinge fixed leaf 12 and the hinge movable leaf 11 are rotated to a predetermined angle, the retractable mechanism can drive the retractable pin 221 to extend into the latching hole 215 to latch the hinge fixed leaf 12 and the hinge movable leaf 11 at the predetermined angle.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A locking hinge, comprising:

the telescopic pin mechanism is arranged on the hinge mechanism;

2. The locking hinge of claim 1, wherein:

the telescopic mechanism comprises a telescopic pin knob, an elastic piece and a telescopic body;

the telescopic body is provided with a telescopic cavity corresponding to the telescopic pin, and the telescopic pin is movably inserted in the telescopic cavity; the telescopic cavity is of a variable diameter structure and comprises a first large-diameter section and a first small-diameter section, and the first large-diameter section and the first small-diameter section form a first shoulder;

the telescopic pin is of a reducing structure and comprises a second large-diameter section and a second small-diameter section, and the second large-diameter section and the second small-diameter section form a second shoulder;

the elastic piece is sleeved on the second small-diameter section, and two ends of the elastic piece are respectively abutted against the first shoulder part and the second shoulder part; the second small-diameter section penetrates through the first small-diameter section and then is connected with the telescopic pin knob; such that the resilient member is pre-compressed between the first shoulder and the second shoulder;

the lateral wall in flexible chamber with flexible round pin knob corresponds respectively and is equipped with assorted spout or arch, the spout with protruding edge the axis direction in flexible chamber extends, works as hinge fixed page or leaf board with hinge activity page or leaf board rotates when predetermineeing the angle, and is rotatory flexible round pin knob makes protruding with the spout sets up relatively, protruding holding is located during the spout, flexible round pin is in stretch into under the elastic action of elastic component the locking hole.

3. The locking hinge of claim 2, wherein:

rotating the telescopic pin knob to enable the bulge and the sliding groove to be arranged in a staggered mode, wherein the elastic piece is pre-compressed between the first shoulder and the second shoulder; or the like, or, alternatively,

rotating the telescopic pin knob to enable the bulge and the sliding groove to be arranged in a staggered mode, wherein the elastic piece is pre-compressed between the first shoulder and the second shoulder; when the protrusion and the sliding groove are arranged in a staggered mode, the protrusion is clamped in the groove.

4. The locking hinge of claim 2, wherein:

the sliding groove or the protrusion is arranged on the inner side wall of the telescopic pin knob, so that the telescopic pin knob is sleeved on the outer side of the telescopic body to hide the sliding groove and the protrusion.

5. The locking hinge of claim 2, wherein:

one end of the telescopic body, which is far away from one side of the telescopic pin knob, is in threaded connection with the hinge mechanism; and/or the presence of a gas in the gas,

the outer side wall of the telescopic body protrudes outwards to form an annular wall, and the end face of the annular wall, close to one side of the telescopic pin knob, is opposite to the telescopic pin knob; and a self-locking anti-loosening gasket is arranged between the end surface of the annular wall, which is far away from one side of the telescopic pin knob, and the hinge mechanism.

6. The locking hinge of claim 1, wherein:

more than one pair of components in the hinge fixed page plate, the hinge movable page plate, the first connecting rod, the second connecting rod, the first connecting rod, the hinge movable page plate and the second connecting rod are in rotary connection through a rotating mechanism;

the rotating mechanism comprises a pin shaft and a self-lubricating bearing sleeve; the pin shaft penetrates through more than one pair of the hinge fixed page plate and the hinge movable page plate which are connected in a rotating mode, the first connecting rod and the second connecting rod, the first connecting rod and the hinge movable page plate, and the second connecting rod and the hinge fixed page plate in sequence; the self-lubricating bearing sleeves are sleeved at two ends of the pin shaft.

7. The locking hinge of any of claims 1-6, wherein:

the hinge movable leaf plate comprises a first connecting leaf plate and a first connecting arm; the first connecting arm is provided with a first accommodating cavity corresponding to the first connecting rod, so that the end part of the first connecting rod, which is close to the first connecting arm, is accommodated in the first accommodating cavity, and the first connecting rod is rotatably connected with the side wall of the first accommodating cavity; the hinge fixing plate comprises a second connecting plate and a second connecting arm; the second connecting arm is provided with a second accommodating cavity corresponding to the second connecting rod, so that the second connecting rod is accommodated in the second accommodating cavity, and the second connecting rod is rotatably connected with the side wall of the second accommodating cavity; the second connecting rod is provided with a third accommodating cavity corresponding to the first connecting rod, so that one end of the first connecting rod, which is close to the second connecting rod, is accommodated in the third accommodating cavity, and the first connecting rod is rotatably connected with the side wall of the third accommodating cavity; the first connecting arm and the second connecting arm are provided with limiting parts corresponding to the preset angle, and the limiting parts are used for setting the maximum rotation angle of the hinge fixed page plate and the hinge movable page plate as the preset angle; and/or the presence of a gas in the gas,

the hinge mechanism further comprises a rotating motor, and the rotating motor drives the hinge movable hinge plate to rotate around the hinge fixed hinge plate.

8. A military vehicle, comprising:

a vehicle body, a vehicle door, and the check hinge of any one of claims 1-7;

the hinge fixing plate of the locking hinge is connected with the vehicle body;

and a hinge movable leaf plate of the locking hinge is connected with the vehicle door.

9. A locking mechanism for a locking hinge according to any one of claims 1 to 7, wherein:

10. A retractable pin mechanism for a snap hinge according to any one of claims 1 to 7, comprising:

telescopic pin and telescopic machanism, when hinge fixed page or leaf board and hinge activity page or leaf board rotate to predetermineeing the angle, telescopic machanism can drive the telescopic pin stretches into the locking hole, with hinge fixed page or leaf board with hinge activity page or leaf board locking is in predetermineeing the angle.