CN114251029A

CN114251029A - Link mechanism with self-locking function

Info

Publication number: CN114251029A
Application number: CN202111603862.XA
Authority: CN
Inventors: 陈云
Original assignee: Ningbo Autowin Electrical Co ltd
Current assignee: Ningbo Autowin Electrical Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-03-29
Anticipated expiration: 2041-12-24
Also published as: CN114251029B

Abstract

The invention relates to the technical field of automobile equipment, and discloses a connecting rod mechanism with a self-locking function, which solves the problem that the existing self-locking structure cannot realize simultaneous limiting when opening and closing; in the invention, during operation, the first rotating plate and the second rotating plate rotate anticlockwise, and when the rotating plate rotates to a specified angle, the second clamping rod is clamped with the inner part of the second clamping groove, so that the second rotating plate cannot rotate continuously, the limiting purpose during door opening is achieved, the integral strength is greatly improved, the limiting of opening and closing is realized, and the space occupied by the mechanism is greatly reduced.

Description

Link mechanism with self-locking function

Technical Field

The invention belongs to the technical field of automobile equipment, and particularly relates to a connecting rod mechanism with a self-locking function.

Background

Along with the popularization of electric vehicles in recent years, electric charging small doors are more and more, the mechanism is a limiting mechanism for controlling the opening/closing of the small doors, the structure is simple, the spectrum is kept, the durability is good, the self-locking structure applied to the market at present is fixed through a pin and a spring, and one limiting mechanism can only control the limiting when the small doors are opened and closed.

The existing self-locking structure cannot realize simultaneous limitation when being opened and closed, and the limitation of a switch can be realized only by mutually matching a plurality of devices.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the link mechanism with the self-locking function, and the problem that the existing self-locking structure cannot realize simultaneous limiting when being opened and closed is effectively solved.

In order to achieve the purpose, the invention provides the following technical scheme: a connecting rod mechanism with a self-locking function comprises a middle connecting rod, wherein a first connecting rod component is installed on one side of the middle connecting rod, a second connecting rod component is installed on the other side of the middle connecting rod, fastening components are installed inside the first connecting rod component and the second connecting rod component, and a protection component is installed on the back surface of the middle connecting rod;

the first connecting rod assembly comprises a first rotating groove arranged on one side of the middle connecting rod, a first rotating rod is inserted in the first rotating groove, a first rotating plate is arranged at one end of the first rotating rod, a first clamping rod is arranged on one side of the first rotating plate, a first clamping groove is formed in one side of the middle connecting rod and matched with the first clamping rod, the second connecting rod assembly comprises a second rotating groove arranged on the other side of the middle connecting rod, a second rotating rod is inserted in the second rotating groove, a second rotating plate is arranged at one end of the second rotating rod, a second clamping rod is arranged on one side of the second rotating plate, a second clamping groove is formed in the other side of the middle connecting rod, and the second clamping groove is matched with the second clamping rod;

the fastening assembly comprises an inner groove arranged inside the first rotating rod and the second rotating rod, a screw groove is formed in one side of the inner groove, the screw groove penetrates through the outside of the first rotating rod, the inner thread of the screw groove is connected with a fastening screw rod, a limiting block is installed at one end of the fastening screw rod, the limiting block is sleeved on the outer side of the first rotating rod, and one side of the limiting block is tightly attached to the middle connecting rod.

Preferably, the movable groove has been seted up to angles such as the outside in inside groove, and the inside in movable groove is pegged graft and is had the joint pole, and the joint pole is installed in joint inslot portion, and wherein the joint groove is seted up in the inside in first rotary tank and the inside in second rotary tank, and the one end of joint pole is installed in the mounting panel, and first spring is installed to the bilateral symmetry of mounting panel, and the extrusion head is installed to one side of mounting panel, and fastening screw is located the one end of inside inslot portion and installs first top, and first top closely laminates with the extrusion head.

Preferably, the first plug and the extrusion head are formed in a hemispherical shape, and the clamping unit is installed inside the inner groove.

Preferably, the clamping unit comprises a movable block arranged inside the inner groove, a bottom groove is formed in one end, far away from the first ejector, of the movable block, a second spring is arranged inside the bottom groove, one end of the second spring is fixedly connected with the inner wall of the inner groove, the movable block is close to one end of the first ejector and provided with a second ejector block, the second ejector block is hemispherical, a second magnetic block is arranged inside the movable block, a first magnetic block is arranged in the front face of a limiting block, and the magnetism of the first magnetic block is opposite to that of the second magnetic block.

Preferably, the protection subassembly is including seting up the turn trough at the middle part connecting rod back, and the inside rotation of turn trough is connected with the dwang, and the limiting plate is installed to the one end of dwang, and the outside of dwang is rotated and is connected with the rotation stock, and the protection unit is installed to the both ends symmetry of rotation stock.

Preferably, the protection unit comprises an inner groove formed in the front face of the long rotating rod, a movable plate is movably mounted inside the inner groove, a third spring is mounted on one side of the movable plate, one end of the third spring is fixedly connected with the inside of the inner groove, a limiting groove is formed in the movable plate, a limiting plate is mounted inside the limiting groove, a protection rod is mounted on one side of the limiting plate, and an oblique angle is formed in the bottom end of the protection rod.

Preferably, the inner grooves on two sides are respectively matched with the first clamping groove and the first rotating rod, the protection rod at one end is inserted into the first clamping groove and the first rotating rod, and the moving back component is installed at the bottom end of the rotating long rod.

Preferably, the subassembly that moves back is including installing in the sleeve that rotates the stock below, sleeve and middle part connecting rod fixed connection, and the intercommunication groove has been seted up to telescopic one end, and the grafting has the bull stick in the inside in intercommunication groove, and the turning block is installed to the one end of bull stick, and turning block sliding connection is in telescopic inside, and the torsional spring is installed in the outside in intercommunication groove, the one end and the telescopic inner wall fixed connection of torsional spring, and the one end of bull stick runs through to the telescopic outside, and the one end that the bull stick is located the sleeve outside has been seted up and has been run through the groove, runs through the outside that runs through to the bull stick from top to bottom in the groove.

Preferably, the ball groove has been seted up to the inside that runs through the groove, and the internally mounted of ball groove has the connection ball, connects the top of ball and installs the connection rope, connects the rope and runs through to the outside that runs through the groove, connects the one end of rope and rotates stock fixed connection.

Compared with the prior art, the invention has the beneficial effects that:

1) during operation, the first rotating plate and the second rotating plate rotate clockwise, when the door is rotated to a specified angle, the first clamping rod enters the first clamping groove to be clamped, so that the first rotating plate cannot rotate continuously to achieve the limiting purpose when the door is closed, the first rotating plate and the second rotating plate rotate anticlockwise, when the door is rotated to the specified angle, the second clamping rod is clamped with the second clamping groove to enable the second rotating plate to rotate continuously to achieve the limiting purpose when the door is opened, so that the overall strength is greatly improved, the limiting of opening and closing is achieved, and the space occupied by the mechanism is greatly reduced;

2) when the protective rod is connected into the second clamping groove through the second clamping rod clamp, the second rotating plate pushes the rotating long rod to rotate downwards after rotating, so that the other end of the rotating long rod is lifted upwards, and then the protective rod enters the first clamping groove under the action of the third spring, so that foreign matters are prevented from entering the first clamping groove when the clamping effect is not achieved in the first clamping groove, the middle connecting rod cannot move, and the protection of the small door is improved;

3) in operation, the fastening screw through the thread groove inside that sets up screws up the in-process, fastening screw constantly enters into inside the groove, thereby promote the extrusion head and remove towards the activity inslot side, make the joint pole insert joint inslot portion, thereby make first bull stick and middle part link be connected more stably, simultaneously along with the distance of first magnetic path and second magnetic path becomes nearly, thereby drive the second kicking block and remove towards fastening screw, then with the extrusion head top in centre tight, thereby further improve the connection reliability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a first link assembly of the present invention;

FIG. 3 is a schematic view of a middle link structure of the present invention;

FIG. 4 is a schematic view of the fastener assembly of the present invention;

FIG. 5 is a schematic view of a rear side structure of the middle link of the present invention;

FIG. 6 is a schematic structural diagram of a protection assembly according to the present invention;

FIG. 7 is a schematic view of the structure of the return assembly of the present invention.

In the figure: 1. a middle connecting rod; 2. a first link assembly; 201. a first rotary groove; 202. a first card slot; 203. a first rotating lever; 204. a first rotating plate; 205. a first clamping rod; 3. a second linkage assembly; 301. a second rotary groove; 302. a second card slot; 303 a second rotating rod; 304. a second rotating plate; 305. a second clamping rod; 4. a fastening assembly; 401. an inner groove; 402. a screw groove; 403. fastening a screw rod; 404. a first plug; 405. a limiting block; 406. a movable groove; 407. a clamping and connecting rod; 408. mounting a plate; 409. a first spring; 410. a clamping unit; 4101. a first magnetic block; 4102. a movable block; 4103. a second magnetic block; 4104. a bottom groove; 4105. a second spring; 4106. a second top block; 411. an extrusion head; 412. a clamping groove; 5. a protection component; 501. rotating the groove; 502. rotating the rod; 503. a limiting plate; 504. rotating the long rod; 505. a protection unit; 5051. an inner tank; 5052. a movable plate; 5053. a third spring; 5054. a limiting groove; 5055. a limiting plate; 5056. a guard bar; 5057. oblique angle; 6. moving back the assembly; 601. a sleeve; 602. a communicating groove; 603. rotating the block; 604. a rotating rod; 605. a torsion spring; 606. a through groove; 607. a ball groove; 608. a connecting ball; 609. and connecting ropes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 7, the present invention includes a middle connecting rod 1, a first connecting rod assembly 2 is installed on one side of the middle connecting rod 1, a second connecting rod assembly 3 is installed on the other side of the middle connecting rod 1, a fastening assembly 4 is installed inside each of the first connecting rod assembly 2 and the second connecting rod assembly 3, a protection assembly 5 is installed on the back side of the middle connecting rod 1, the first connecting rod assembly 2 includes a first rotating groove 201 opened on one side of the middle connecting rod 1, a first rotating rod 203 is inserted into the first rotating groove 201, a first rotating plate 204 is installed at one end of the first rotating rod 203, a first clamping rod 205 is installed on one side of the first rotating plate 204, a first clamping groove 202 is opened on one side of the middle connecting rod 1, the first clamping groove 202 is adapted to the first clamping rod 205, the second connecting rod assembly 3 includes a second rotating groove 301 opened on the other side of the middle connecting rod 1, a second rotating rod 303 is inserted into the second rotating groove 301, a second rotating plate 304 is mounted at one end of the second rotating rod 303, a second clamping rod 305 is mounted at one side of the second rotating plate 304, a second clamping groove 302 is formed in the other side of the middle connecting rod 1, and the second clamping groove 302 is matched with the second clamping rod 305;

during operation, at first when little door closing process, first commentaries on classics board 204 and second commentaries on classics board 304 do clockwise rotation, when changeing the appointed angle, first kelly 205 enters into the inside joint of first draw-in groove 202, make first commentaries on classics board 204 can't continue to rotate, reach the spacing purpose when closing the door, when little door opening process, first commentaries on classics board 204 and second commentaries on classics board 304 do anticlockwise rotation, when changeing the appointed angle, second kelly 305 and the inside joint of second draw-in groove 302, make second commentaries on classics board 304 can't continue to rotate, reach the spacing purpose when opening the door, make bulk strength obtain great improvement, and realized opening simultaneously and the spacing that people closed, great reduction the space that the mechanism occupied.

In the second embodiment, on the basis of the first embodiment, the fastening assembly 4 includes an inner groove 401 disposed inside the first rotating rod 203 and the second rotating rod 303, a screw groove 402 is disposed on one side of the inner groove 401, the screw groove 402 penetrates the outer portion of the first rotating rod 203, a fastening screw 403 is threadedly connected inside the screw groove 402, a limiting block 405 is mounted at one end of the fastening screw 403, the limiting block 405 is sleeved outside the first rotating rod 203, one side of the limiting block 405 is tightly attached to the middle link 1, a movable groove 406 is disposed on the outer side of the inner groove 401 at an equal angle, a clamping rod 407 is inserted inside the movable groove 406, the clamping rod 407 is mounted inside the clamping groove 412, the clamping groove 412 is disposed inside the first rotating groove 201 and inside the second rotating groove 301, one end of the clamping rod 407 is mounted on the mounting plate 408, first springs are symmetrically mounted on two sides of the mounting plate 408, a squeezing head 411 is mounted on one side of the mounting plate 408, a first plug 404 is mounted at one end of the fastening screw 403 positioned in the inner groove 401, the first plug 404 is tightly attached to the extrusion head 411, the shape of the first plug 404 and the shape of the extrusion head 411 are both hemispherical, and a clamping unit 410 is mounted in the inner groove 401;

the clamping unit 410 comprises a movable block 4102 arranged in the inner groove 401, a bottom groove 4104 is formed in one end, far away from the first top head 404, of the movable block 4102, a second spring 4105 is arranged in the bottom groove 4104, one end of the second spring 4105 is fixedly connected with the inner wall of the inner groove 401, a second top block 4106 is arranged at one end, close to the first top head 404, of the movable block 4102, the second top block 4106 is hemispherical, a second magnetic block 4103 is arranged in the movable block 4102, a first magnetic block 4101 is arranged on the front face of the limiting block 405, and the magnetism of the first magnetic block 4101 is opposite to that of the second magnetic block 4103;

when the first rotating plate 204 and the second rotating plate 304 are installed, at this time, after the first rotating rod 203 is inserted into the first rotating groove 201, the fastening screw 403 in the screw groove 402 is screwed, so that one side of the limit block 405 is tightly attached to the middle connecting rod 1, and the fastening screw 403 continuously enters the inner groove 401, so that the extrusion head 411 is pushed to move towards the outer side of the movable groove 406, so that the clamping rod 407 is inserted into the clamping groove 412, so that the connection between the first rotating rod 203 and the middle connecting rod 1 is more stable, and meanwhile, as the distance between the first magnetic block 4101 and the second magnetic block 4103 becomes shorter, the second top block 4106 is driven to move towards the fastening screw 403, so that the middle extrusion head 411 is tightly pressed, and the connection reliability is further improved.

In the third embodiment, on the basis of the second embodiment, the protection component 5 includes a rotary slot 501 provided on the back of the middle link 1, the rotary slot 501 is rotatably connected with a rotary rod 502 inside, one end of the rotary rod 502 is provided with a limit plate 503, the outer side of the rotary rod 502 is rotatably connected with a long rotary rod 504, two ends of the long rotary rod 504 are symmetrically provided with protection units 505, each protection unit 505 includes an inner slot 5051 provided on the front of the long rotary rod 504, a movable plate 5052 is movably mounted inside the inner slot 5051, one side of the movable plate 5052 is provided with a third spring 5053, one end of the third spring 5053 is fixedly connected with the inside of the inner slot 5051, the movable plate 5052 is provided with a limit slot 5054 inside, the limit plate 5055 is mounted inside the limit slot 5054, one side of the limit plate 5055 is provided with a protection rod 5056, the bottom end of the protection rod 5056 is provided with an oblique angle 5057, the inner slots 5051 on two sides are respectively matched with the first slot 202 and the first rotary rod 203, a protection rod 5056 at one end is inserted into the first clamping groove 202 and the first rotating rod 203, and a return component 6 is installed at the bottom end of the rotating long rod 504;

when the second clamping bar 305 is clamped into the second clamping groove 302, the second rotating plate 304 rotates to push the rotating long rod 504 to rotate downwards, so that the other end of the rotating long rod 504 is lifted upwards, then the protection rod 5056 enters the first clamping groove 202 under the action of the third spring 5053, and therefore when the clamping effect is not performed in the first clamping groove 202, foreign matters enter the first clamping groove 202, the middle connecting rod 1 cannot move, and therefore the protection of the small door is improved.

In the fourth embodiment, on the basis of the third embodiment, the moving back assembly 6 includes a sleeve 601 installed below the long rotating rod 504, the sleeve 601 is fixedly connected with the middle link 1, one end of the sleeve 601 is provided with a communicating groove 602, a rotating rod 604 is inserted into the communicating groove 602, one end of the rotating rod 604 is provided with a rotating block 603, the rotating block 603 is slidably connected into the sleeve 601, the outside of the communicating groove 602 is provided with a torsion spring 605, one end of the torsion spring 605 is fixedly connected with the inner wall of the sleeve 601, one end of the rotating rod 604 penetrates the outside of the sleeve 601, a through groove 606 is formed in one end, located on the outer side of the sleeve 601, of the rotating rod 604, the through groove 606 penetrates the outer side of the rotating rod 604 from top to bottom, a ball groove 607 is formed in the through groove 606, a connecting ball 608 is mounted in the ball groove 607, a connecting rope 609 is mounted at the top end of the connecting ball 608, the connecting rope 609 penetrates the outer side of the through groove 606, and one end of the connecting rope 609 is fixedly connected with the long rotating rod 504;

when the second locking bar 305 leaves the second locking groove 302, the first locking bar 205 enters the first locking groove 202, and the top end of one side of the long rotating rod 504 is not under the pressure of the second rotating plate 304, so that the rotating rod 604 rotates under the elastic force of the torsion spring 605, the connecting rope 609 pulls the long rotating rod 504 to rotate, and the protection rod 5056 leaves the inside of the first locking groove 202.

Claims

1. The utility model provides a link mechanism with self-locking function, includes middle part connecting rod (1), its characterized in that: a first connecting rod component (2) is installed on one side of the middle connecting rod (1), a second connecting rod component (3) is installed on the other side of the middle connecting rod (1), fastening components (4) are installed inside the first connecting rod component (2) and the second connecting rod component (3), and a protection component (5) is installed on the back of the middle connecting rod (1);

the first connecting rod assembly (2) comprises a first rotating groove (201) arranged on one side of the middle connecting rod (1), a first rotating rod (203) is inserted into the first rotating groove (201), a first rotating plate (204) is arranged at one end of the first rotating rod (203), a first clamping rod (205) is arranged on one side of the first rotating plate (204), a first clamping groove (202) is formed in one side of the middle connecting rod (1), and the first clamping groove (202) is matched with the first clamping rod (205); the second connecting rod assembly (3) comprises a second rotating groove (301) formed in the other side of the middle connecting rod (1), a second rotating rod (303) is inserted into the second rotating groove (301), a second rotating plate (304) is installed at one end of the second rotating rod (303), a second clamping rod (305) is installed at one side of the second rotating plate (304), a second clamping groove (302) is formed in the other side of the middle connecting rod (1), and the second clamping groove (302) is matched with the second clamping rod (305);

fastening components (4) are including offering in inside groove (401) of first bull stick (203) and second bull stick (303), thread groove (402) have been seted up to one side of inside groove (401), thread groove (402) run through to the outside of first bull stick (203), the internal thread connection of thread groove (402) has fastening screw (403), stopper (405) are installed to the one end of fastening screw (403), stopper (405) cup joint in first bull stick (203) the outside, and one side and middle part connecting rod (1) of stopper (405) closely laminate.

2. The linkage mechanism with self-locking function according to claim 1, wherein: activity groove (406) have been seted up to the angle such as the outside of inside groove (401), the inside grafting of activity groove (406) has joint pole (407), joint pole (407) are installed inside joint groove (412), wherein joint groove (412) are seted up in the inside of first rotary trough (201) and the inside of second rotary trough (301), the one end of joint pole (407) is installed in mounting panel (408), first spring (409) are installed to the bilateral symmetry of mounting panel (408), extrusion head (411) are installed to one side of mounting panel (408), fastening screw (403) are located the inside one end of inside groove (401) and install first top (404), first top (404) closely laminate with extrusion head (411).

3. The link mechanism with self-locking function according to claim 2, wherein: the shape of the first plug (404) and the shape of the extrusion head (411) are both hemispherical, and a clamping unit (410) is installed inside the internal groove (401).

4. The linkage mechanism with self-locking function according to claim 3, wherein: the clamping unit (410) comprises a movable block (4102) arranged in an inner groove (401), a bottom groove (4104) is formed in one end, far away from the first top head (404), of the movable block (4102), a second spring (4105) is arranged in the bottom groove (4104), one end of the second spring (4105) is fixedly connected with the inner wall of the inner groove (401), a second top block (4106) is arranged at one end, close to the first top head (404), of the movable block (4102), the second top block (4106) is hemispherical, a second magnetic block (4103) is arranged in the movable block (4102), a first magnetic block (4101) is arranged on the front face of a limiting block (405), and the magnetism of the first magnetic block (4101) is opposite to that of the second magnetic block (4103).

5. The linkage mechanism with self-locking function according to claim 1, wherein: protection subassembly (5) are including offering in turn trough (501) at the middle part connecting rod (1) back, and the inside rotation of turn trough (501) is connected with dwang (502), and limiting plate (503) are installed to the one end of dwang (502), and the outside rotation of dwang (502) is connected with rotation stock (504), and protection unit (505) are installed to the both ends symmetry of rotation stock (504).

6. The linkage mechanism with self-locking function according to claim 5, wherein: the protection unit (505) comprises an inner groove (5051) formed in the front face of the long rotating rod (504), a movable plate (5052) is movably mounted inside the inner groove (5051), a third spring (5053) is mounted on one side of the movable plate (5052), one end of the third spring (5053) is fixedly connected with the inside of the inner groove (5051), a limit groove (5054) is formed inside the movable plate (5052), a limit plate (5055) is mounted inside the limit groove (5054), a protection rod (5056) is mounted on one side of the limit plate (5055), and an oblique angle (5057) is formed in the bottom end of the protection rod (5056).

7. The linkage mechanism with self-locking function according to claim 6, wherein: the inner grooves (5051) on two sides are respectively matched with the first clamping groove (202) and the first rotating rod (203), the protection rod (5056) at one end is inserted into the first clamping groove (202) and the first rotating rod (203), and the return moving assembly (6) is installed at the bottom end of the rotating long rod (504).

8. The linkage mechanism with self-locking function according to claim 7, wherein: move back subassembly (6) including installing in sleeve (601) of rotating long-rod (504) below, sleeve (601) and middle part connecting rod (1) fixed connection, intercommunication groove (602) have been seted up to the one end of sleeve (601), the inside grafting of intercommunication groove (602) has bull stick (604), turning block (603) are installed to the one end of bull stick (604), turning block (603) sliding connection is in the inside of sleeve (601), torsional spring (605) are installed in the outside of intercommunication groove (602), the one end of torsional spring (605) and the inner wall fixed connection of sleeve (601), the one end of bull stick (604) runs through to the outside of sleeve (601), and bull stick (604) are located the one end in the sleeve (601) outside and have been seted up and have been run through groove (606), run through the outside of bull stick (604) from top to bottom.

9. The linkage mechanism with self-locking function according to claim 8, wherein: ball groove (607) have been seted up to the inside of passing through groove (606), and the internally mounted of ball groove (607) has connecting ball (608), and connecting rope (609) are installed on the top of connecting ball (608), and connecting rope (609) run through to the outside that passes through groove (606), and the one end of connecting rope (609) and rotation stock (504) fixed connection.