CN210941323U

CN210941323U - Quick locking device

Info

Publication number: CN210941323U
Application number: CN201920874383.3U
Authority: CN
Inventors: 韩磊; 王志海; 张志强; 陈狄松; 吴元和; 杨欣; 王雷
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Jizhi New Energy Automobile Technology Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Jizhi New Energy Automobile Technology Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-07-07
Anticipated expiration: 2029-06-11

Abstract

The utility model relates to a quick locking device, which is characterized in that the quick locking device comprises a first lock body, a locking component and a second lock body; the locking assembly comprises a locking shell, a driving rod and a locking piece, the first locking piece is sleeved at one end of the locking shell, the second lock body is provided with a second lock body through hole, the locking shell is partially arranged in the second lock body through hole, and the locking shell and the second lock body are axially and relatively fixed; the locking shell is provided with a locking hole, the driving rod is positioned in the locking shell cavity and drives the locking piece to extend or retract relative to the locking hole; the locking assembly further comprises a driving rod limiting part, and the driving rod limiting part is used for limiting the moving distance of the driving rod. The problem of among the prior art actuating lever jack-up easily or the pine takes off excessively is solved to destroy the part or cause the part technical problem that drops.

Description

Quick locking device

Technical Field

The utility model relates to an electric automobile field especially relates to a quick locking means on electric automobile.

Background

At present, the power supply mode of the power battery of the electric automobile is generally divided into two modes of inserting charging with the automobile and replacing the battery, wherein the inserting charging mode has two modes of slow charging and fast charging. The insertion charging mode has the following defects: 1. the initial investment cost of the battery is high, and the popularization of the electric automobile is hindered to a certain extent; 2. the charging time is too long, at least 2-4 hours, and compared with the oiling of a common automobile, the time spent on supplying energy by the electric automobile is too long, so that the charging is not convenient and fast, and the requirements of people cannot be met. The fast charging mode may cause great damage to the battery, resulting in shortened service life of the battery. The problem of the plug-in charging mode can be effectively avoided by adopting the mode of replacing the battery, and various battery box and battery frame structures are correspondingly developed in recent years.

The key point of realizing quick battery replacement of the power battery of the electric automobile is the design of a battery replacement locking mechanism, and the main function of the battery replacement lock body is to keep the automobile body and the battery pack in a firm connection state when the battery replacement is not carried out; when the battery is replaced, the vehicle body and the battery pack are quickly connected and separated.

For example, CN102390364A, "a locking device for vehicle-mounted power battery" discloses an electric vehicle using a vehicle-mounted power battery as a power source. Should trade electric system includes: the battery quick-change unit is used for loading the power battery. The locking unit is installed in the automobile body, and during the use, the buckle part of battery quick change unit inserts in the draw-in groove of locking unit, and rethread lock keeps off the battery quick change unit, and like this, just can fix the battery quick change unit in the automobile body.

Still provide a locking structure among the prior art, be through the jacking of actuating lever (the preferred screw rod of actuating lever), the locking is realized on the drive locking pellet stretches out locking shell surface, and such locking structure is convenient operation and locking back stable in structure more. However, this structure has the following technical problems:

jacking and unscrewing of the screw rod are manually controlled by an operator, and in the operation process, the screw rod is easy to jack and over head to cause extrusion deformation of the locking small ball, or the screw rod falls off from the locking device due to too much screwing in the unscrewing process, so that the parts fall off and are damaged or are lost.

Therefore, it is necessary to provide a locking mechanism with stable structure to effectively prevent the driving rod from being excessively jacked or loosened to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a quick locking means with actuating lever limit structure. The problem of among the prior art actuating lever jack-up easily or the pine takes off excessively is solved to destroy the part or cause the part technical problem that drops.

The technical effects of the utility model are through following realization:

the quick locking device is characterized by comprising a first lock body, a locking assembly and a second lock body;

the locking assembly comprises a locking shell, a driving rod and a locking piece, the first locking piece is sleeved at one end of the locking shell, the second lock body is provided with a second lock body through hole, the locking shell is partially arranged in the second lock body through hole, and the locking shell and the second lock body are axially and relatively fixed;

the locking shell is provided with a locking hole, the driving rod is positioned in the locking shell cavity and drives the locking piece to extend or retract relative to the locking hole; when the locking piece extends relative to the locking hole, the first locking piece is locked relative to the locking shell, and when the locking piece retracts relative to the locking hole, the first locking piece is disengaged relative to the locking shell; the locking assembly further comprises a driving rod limiting part, and the driving rod limiting part is used for limiting the moving distance of the driving rod. The moving distance of the driving rod is limited by arranging the driving limiting part, so that excessive jacking or excessive loosening of the driving rod is effectively prevented.

Furthermore, the driving rod is provided with a limiting groove, and one end of the driving rod limiting part is located in the inner cavity of the locking shell and extends into the limiting groove. The spacing distance is the length of the spacing groove.

Further, the drive locating part is a limiting pin, and the limiting pin is in threaded connection with the locking shell. When the driving rod needs to be detached from the locking shell, the limiting pin can be detached from the locking shell, and then the driving rod can be separated from the locking shell without limitation.

Further, the driving rod is a screw rod, and the driving rod is in threaded connection with the inner cavity of the locking shell.

Furthermore, one end of the driving rod is sequentially provided with an end boss, a driving inclined plane and a locking contact section. The end boss is matched with a guide groove at the top of the inner cavity of the locking shell.

Further, the locking shell is provided with a first shell section and a second shell section, the locking hole is formed in the first shell section, and the outer diameter of the first shell section is smaller than that of the second shell section.

Further, first locking body has the lock body inner chamber, the lock body inner chamber cover is located the one end of first casing section, one section of lock body inner chamber is equipped with the locking boss, works as when the locking piece stretches out the locking hole, the locking piece surface extremely the maximum distance of the axis of locking shell is greater than the internal diameter of locking boss.

Furthermore, an annular groove is formed in the outer surface of the first shell section, a sealing ring is arranged in the annular groove, and the inner surface of the locking boss is connected with the outer surface of the first shell section in a sealing mode through the sealing ring.

Furthermore, a limiting boss is arranged at one end of the through hole of the second lock body, and the inner diameter of the limiting boss is smaller than the outer diameter of one end of the second shell section; the other end of the through hole of the second lock body is provided with a detachable limit stop, the other end of the second shell section is provided with a limit groove, and the limit stop is at least partially positioned in the limit groove.

Further, gaps exist between the outer surface of the first shell section and the inner surface of the limiting boss, between the inner surface of the second shell section and the inner surface of the second lock body through hole, and between the inner surface of the limiting groove and the outer surface of the limiting stop. And on one of the locking connecting pieces, a floating gap is reserved between the locking device and the locking connecting piece body in the X direction and the Y direction, so that the locking device moves in the X direction and the Y direction in the locking connecting piece body, and the aim of floating the battery replacing lock body is fulfilled.

As described above, the utility model discloses following beneficial effect has:

1) the moving distance of the driving rod is limited by arranging the driving limiting part, so that excessive jacking or excessive loosening of the driving rod is effectively prevented.

2) The driving rod one end is equipped with tip boss, drive inclined plane and locking contact section in proper order, and the tip boss can cooperate the guiding groove at locking shell inner chamber top, the jacking of guide driving rod better, and the drive inclined plane will lock the bobble and withdraw from the locking shell steadily, and the locking contact section is the cylinder, can lock the locking bobble in relevant position and can not roll back steadily.

3) And on one of the locking connecting pieces, a floating gap is reserved between the locking device and the locking connecting piece body in the X direction and the Y direction, so that the locking device moves in the X direction and the Y direction in the locking connecting piece body, and the aim of floating the battery replacing lock body is fulfilled.

4) A sealing structure is arranged between the locking device and one of the locking connecting pieces, so that dust or liquid is prevented from entering the lock body, and the lock body is prevented from losing efficacy.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a cross-sectional view of an embodiment of the present invention after the entire assembly;

fig. 2 is a schematic structural view of the locking device according to the embodiment of the present invention after a part of the housing is removed;

fig. 3 is a schematic structural view illustrating the locking device of the embodiment of the present invention engaged with a second lock body;

fig. 4 is a schematic structural diagram of the embodiment of the present invention in a locked state;

fig. 5 is a schematic structural view of the embodiment of the present invention in a released state.

Wherein the reference numerals in the figures correspond to:

1. a first lock body; 11. the inner cavity of the lock body; 12. locking the boss; 2. a locking assembly; 21. a locking housing; 211. a first housing section; 212. a second housing section; 213. a limiting groove; 22. a drive rod; 221. a limiting groove; 222. an end boss; 223. a drive ramp; 224. a locking contact section; 23. a locking member; 24. a drive rod limit piece; 25. a seal ring; 3. a second lock body; 31. a second lock body through hole; 32. a limiting boss; 33. a limit stop block; 34. and fixing the screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1-5, a quick locking device comprises a first lock body 1, a locking assembly 2 and a second lock body 3; the locking assembly 2 comprises a locking shell 21, a driving rod 22 and a locking piece 23, the first lock body 2 is sleeved at one end of the locking shell 21, the second lock body 3 is provided with a second lock body through hole 31, the locking shell 21 is partially arranged in the second lock body through hole 31, and the locking shell 21 and the second lock body are relatively fixed in the axial direction;

the locking shell 21 is provided with a locking hole, the driving rod 22 is positioned in the cavity of the locking shell 21 and drives the locking piece 23 to extend or retract relative to the locking hole; when the locking piece 23 is extended with respect to the locking hole, the first lock body 1 is locked with respect to the lock housing 21, and when the locking piece 23 is retracted with respect to the locking hole, the first lock body 1 is disengaged with respect to the lock housing 21; preferably, the driving rod 22 is a screw rod, and the driving rod 22 is in threaded connection with the inner cavity of the locking housing 21. In other embodiments it may be a piston rod. The locking element 23 is preferably a locking ball.

Specifically, the locking assembly 2 further includes a driving rod stopper 24, and the driving rod stopper 24 is used for limiting the moving distance of the driving rod 22. The driving rod 22 is provided with a limiting groove 221, and one end of the driving rod limiting piece 24 is located in the inner cavity of the locking housing 21 and extends into the limiting groove 221. The driving limiting part 24 is specifically a limiting pin, and the limiting pin is in threaded connection with the locking housing 21. The moving distance of the driving rod is limited by arranging the driving limiting part, so that excessive jacking or excessive loosening of the driving rod is effectively prevented. Wherein the length of the limited movement is the length of the limiting groove 221

For driving convenience, one end of the driving rod 22 is sequentially provided with an end boss 222, a driving inclined plane 223 and a locking contact section 224, the end of the inner cavity of the locking shell 21 is provided with a guide groove matched with the end boss 222, the locking contact section 224 is a cylindrical section, the end boss 222 and the locking contact section 224 are in smooth transition through the driving inclined plane 223, one end of the driving rod is sequentially provided with the end boss, the driving inclined plane and the locking contact section, the end boss can be matched with the guide groove at the top of the inner cavity of the locking shell to better guide jacking of the driving rod, the driving inclined plane can stably withdraw the locking small ball from the locking shell, and the locking contact section is a cylinder and can stably lock the locking small.

Specifically, lock housing 21 has a first housing section 211 and a second housing section 212, the lock hole is provided on first housing section 211, and the outer diameter of first housing section 211 is smaller than the outer diameter of second housing section 212.

Specifically, the first lock body 1 has a lock body inner cavity 11, the lock body inner cavity 11 is sleeved at one end of the first housing section 211, a locking boss 12 is arranged at one section of the lock body inner cavity 11, and when the locking member 23 extends out of the locking hole, the maximum distance from the outer surface of the locking member 23 to the axis of the locking housing 21 is greater than the inner diameter of the locking boss 12.

Specifically, an annular groove is formed in the outer surface of the first housing section 211, a sealing ring 25 is arranged in the annular groove, and the inner surface of the locking boss 12 is connected with the outer surface of the first housing section 211 in a sealing manner through the sealing ring 25. A sealing structure is arranged between the locking device and one of the locking connecting pieces, so that dust or liquid is prevented from entering the lock body, and the lock body is prevented from losing efficacy.

Specifically, one end of the second lock body through hole 31 is provided with a limiting boss 32, and the inner diameter of the limiting boss 32 is smaller than the outer diameter of one end of the second shell section 212; the other end of the second lock body through hole 31 is provided with a detachable limit stop 33, the other end of the second shell section 212 is provided with a limit groove 213, and the limit stop 33 is at least partially positioned in the limit groove 213. Gaps are formed between the outer surface of the first housing section 211 and the inner surface of the limit boss 32, between the inner surface of the second housing section 212 and the inner surface of the second lock body through hole 31, and between the inner surface of the limit groove 213 and the outer surface of the limit stopper 33. And on one of the locking connecting pieces, a floating gap is reserved between the locking device and the locking connecting piece body in the X direction and the Y direction, so that the locking device moves in the X direction and the Y direction in the locking connecting piece body, and the aim of floating the battery replacing lock body is fulfilled.

Specifically, the limit stop 33 is fixed on the second lock body 3 by the fixing screw 34, and when the locking device 2 needs to be removed from the second lock body 3, the quick removal can be realized by directly unscrewing the fixing screw 34. The number of the limit stops 33 is 1-4, in this embodiment, 2, and the limit stops 33 are specifically circular stops. The number of the set screws 34 corresponds to the limit stoppers 33.

In addition, the application also comprises an automobile with the quick locking device, wherein one of the first lock body 1 and the second lock body 3 is fixedly connected with the automobile body, and the other one is fixedly connected with the battery for quickly replacing the battery of the automobile.

Example 2:

the difference from embodiment 1 is that a limiting boss 32 is arranged at one end of the second lock body through hole 31, and the inner diameter of the limiting boss 32 is smaller than the outer diameter of one end of the second shell section 212; the other end of the second lock body through hole 31 is provided with a detachable limit stop 33, the number of the limit stops 33 is 1, and the limit stop 33 is specifically a hollow annular stop. The number of the set screws 34 is plural.

Example 3:

the difference with embodiment 1 lies in that, one end of the driving rod 22 is sequentially provided with an end boss 222, a driving inclined plane 223 and a locking contact section 224, the end of the inner cavity of the locking housing 21 is provided with a guide groove matched with the end boss 222, the locking contact section 224 is a cylindrical section, the end boss 222 and the locking contact section 224 are in smooth transition through the driving inclined plane 223, one end of the driving rod is sequentially provided with an end boss, a driving inclined plane and a locking contact section, the end boss can be matched with the guide groove at the top of the inner cavity of the locking housing, and the upper end of the end boss 222.

Through the above specific embodiments, the following technical effects are achieved:

Although the present invention has been described in connection with the preferred embodiments, it is not intended to limit the invention to the embodiments described herein, but rather, to include various changes and modifications without departing from the scope of the invention.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The embodiments and features of the embodiments described herein above can be combined with each other without conflict.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims

1. A quick locking device is characterized by comprising a first lock body (1), a locking assembly (2) and a second lock body (3);

the locking assembly (2) comprises a locking shell (21), a driving rod (22) and a locking piece (23), the first lock body (1) is sleeved at one end of the locking shell (21), the second lock body (3) is provided with a second lock body through hole (31), the locking shell (21) is partially arranged in the second lock body through hole (31), and the locking shell (21) and the second lock body are relatively fixed in the axial direction;

the locking shell (21) is provided with a locking hole, the driving rod (22) is positioned in the cavity of the locking shell (21) and drives the locking piece (23) to extend or retract relative to the locking hole; when the locking member (23) is extended relative to the locking hole, the first lock body (1) is locked relative to the lock housing (21), and when the locking member (23) is retracted relative to the locking hole, the first lock body (1) is disengaged relative to the lock housing (21);

the locking assembly (2) further comprises a driving rod limiting piece (24), and the driving rod limiting piece (24) is used for limiting the moving distance of the driving rod (22).

2. The quick locking mechanism of claim 1, wherein the driving rod (22) is provided with a limiting groove (221), and one end of the driving rod limiting member (24) is located in the inner cavity of the locking housing (21) and extends into the limiting groove (221).

3. The quick locking mechanism of claim 2, wherein the driving rod limiting member (24) is a limiting pin, and the limiting pin is in threaded connection with the locking housing (21).

4. The quick-locking mechanism of claim 3, wherein the drive rod (22) is a threaded rod, and the drive rod (22) is in threaded connection with the inner cavity of the locking housing (21).

5. The quick locking mechanism of claim 1, wherein the driving rod (22) is provided with an end boss (222), a driving bevel (223) and a locking contact section (224) at one end in sequence.

6. A quick-lock mechanism according to claim 1, characterised in that the lock housing (21) has a first housing section (211) and a second housing section (212), the locking hole being provided in the first housing section (211), the outer diameter of the first housing section (211) being smaller than the outer diameter of the second housing section (212).

7. The quick locking mechanism of claim 6, wherein the first lock body (1) has a lock body cavity (11), the lock body cavity (11) is sleeved on one end of the first shell section (211), a section of the lock body cavity (11) is provided with a locking boss (12), and when the locking member (23) extends out of the locking hole, the maximum distance from the outer surface of the locking member (23) to the axis of the locking shell (21) is greater than the inner diameter of the locking boss (12).

8. The quick locking mechanism of claim 7, wherein the outer surface of the first housing segment (211) is provided with an annular groove, a sealing ring (25) is arranged in the annular groove, and the inner surface of the locking boss (12) is connected with the outer surface of the first housing segment (211) in a sealing way through the sealing ring (25).

9. The quick locking mechanism of claim 6, characterized in that one end of the second lock body through hole (31) is provided with a limit boss (32), and the inner diameter of the limit boss (32) is smaller than the outer diameter of one end of the second shell section (212); the other end of the second lock body through hole (31) is provided with a detachable limit stop (33), the other end of the second shell section (212) is provided with a limit groove (213), and the limit stop (33) is at least partially positioned in the limit groove (213).

10. A quick-locking mechanism according to claim 9, characterized in that there are gaps between the outer surface of the first housing section (211) and the inner surface of the limit projection (32), between the inner surface of the second housing section (212) and the inner surface of the second lock body through hole (31), and between the inner surface of the limit recess (213) and the outer surface of the limit stop (33).