CN111907311A

CN111907311A - Electric automobile trades electric lock body fast

Info

Publication number: CN111907311A
Application number: CN202010665965.8A
Authority: CN
Inventors: 岑晓武; 兰洪根; 胡仙旭; 章华; 郑沪
Original assignee: Weide Vehicle Unit Co ltd
Current assignee: Weide Vehicle Unit Co ltd
Priority date: 2020-07-12
Filing date: 2020-07-12
Publication date: 2020-11-10

Abstract

The invention relates to a quick battery replacement lock body of an electric automobile, which comprises a fixed seat and a plug-in module in plug-in fit with the fixed seat, wherein a lock pin body of the plug-in module is divided into a lock pin head part and a lock pin tail part, a positioning steel ball, an ejection block and a lock pin screw rod are arranged in the hollow interior of the lock pin body, the thread section of the lock pin screw rod is in threaded connection with the lock pin body, the ejection block is ejected by the ejection block in the ejection section to push the positioning steel ball to form locking fit with the fixed seat, a bottom bolt head is linked with a driving section, a positioning convex ring is arranged on the periphery of the upper end part of the bottom bolt head, an outer oblique gear ring is formed outside the positioning convex ring, a fixed nut is sleeved outside the bottom bolt head and is in threaded connection with the periphery wall of the lock pin tail part. Through the specific design, the power battery pack connecting device has the advantages of compact structure, stable connection of the power battery pack, high installation precision, convenience in assembly and disassembly and strong reliability.

Description

Electric automobile trades electric lock body fast

Technical Field

The invention relates to a quick battery replacement lock body of an electric automobile.

Background

The electric automobile is driven by a motor to drive a rear axle to run by taking a power battery as a power energy storage mechanism, is influenced by battery materials at present, is still low in charging efficiency of the power battery, cannot finish quick charging in a short time to guarantee the endurance of the vehicle, and therefore, the quick reloading of the battery is an effective mode for guaranteeing the endurance of the vehicle. The power battery pack is an electric energy storage device of the electric automobile and is a power core of the electric automobile, and the reliable fixation of the power battery pack on the electric automobile is a primary condition for ensuring the driving safety and the normal work of the automobile. At present, most of power battery packs of electric automobiles are generally arranged below an automobile chassis, and the traditional battery replacing lock is complex in structure and inconvenient to use, so that the power battery packs cannot be replaced quickly.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the electric automobile quick battery replacing lock body which is compact in structure, stable in connection, convenient to operate and use and high in reliability.

The technical scheme adopted by the invention for solving the technical problem is as follows: the device comprises a fixed seat and an inserting module which is in inserting fit with the fixed seat, wherein an inserting positioning ring is arranged in the fixed seat, the inserting module comprises a lock pin body, the inner part of the lock pin body is designed to be hollow, the outer part of the lock pin body is divided into a lock pin head part and a lock pin tail part by an isolation convex ring, a positioning hole is formed in the peripheral wall of the lock pin head part, a positioning steel ball, an ejection block and a lock pin screw rod are arranged in the hollow inner part of the lock pin body, the lock pin screw rod is divided into a driving section, a screw thread section and a jacking section, the screw thread section is in threaded connection with the inner cavity wall of the lock pin body, the jacking section jacks the ejection block, the ejection block pushes the positioning steel ball to protrude out of the positioning hole to form locking fit with the inserting positioning ring, the driving section extends out of the lock pin body to form positioning inserting, the fixing nut is in threaded connection with the outer peripheral wall of the tail of the lock pin, a positioning ring cover is arranged at the lower end of the fixing nut and matched with the positioning convex ring, and an inner inclined gear ring and an outer inclined gear ring are arranged on the inner periphery of the lower end of the fixing nut and matched with each other.

The ejection block is in a square column shape, the four cylindrical surfaces are provided with conical grooves which are in push fit with the positioning steel balls, the bottom of the ejection block is provided with an arc convex surface, the diameter of the jacking section is smaller than that of the thread section, the top of the jacking section is provided with an arc concave surface, and the arc convex surface and the arc concave surface form positioning jacking fit.

The middle part and the lower part in the lock pin body are respectively provided with a positioning ring groove and a positioning groove, the positioning ring groove is provided with an elastic check ring, the jacking section of the lock pin screw penetrates through the elastic check ring and the upper end surface of the thread section to abut against the elastic check ring, the positioning groove is provided with an anti-withdrawing check ring, the diameter of the driving section is smaller than that of the thread section, an anti-withdrawing spring is sleeved outside the driving section, and the anti-withdrawing spring is limited to abut against between the anti-withdrawing check ring and the lower end.

The upper end part in the lock pin body is provided with a spring groove, a top spring is arranged in the spring groove, and the top spring is pressed on the ejection block.

Through the specific design, the power battery pack connecting device has the advantages of compact structure, stable connection of the power battery pack, high installation precision, convenience in assembly and disassembly and strong reliability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below 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 schematic view of the assembly structure of the present invention.

Fig. 2 is a schematic structural diagram of the plug-in module of the present invention.

Fig. 3 is a schematic structural view of the fixing base of the present invention.

FIG. 4 is a schematic view of the lock body of the present invention.

Fig. 5 is a schematic structural diagram of the ejector block of the present invention.

Fig. 6 is a schematic view of the construction of the detent screw of the present invention.

Fig. 7 is a schematic view of the structure of the bottom bolt head in the present invention.

Fig. 8 is a schematic structural view of the fixing nut of the present invention.

In the figure: the anti-backlash mechanism comprises a fixed seat 1, a plug-in module 2, a plug-in positioning ring 3, a locking pin body 4, an isolation convex ring 5, a locking pin head 6, a positioning hole 7, a steel ball 8, an ejection block 9, a locking pin screw rod 10, a driving section 11, a screw section 12, a jacking section 13, a bottom bolt head 14, a positioning convex ring 15, an outer inclined gear ring 16, a fixing nut 17, a positioning ring cover 18, an inner inclined gear ring 19, a conical groove 20, an arc convex surface 21, an arc concave surface 22, a positioning ring groove 23, a positioning groove 24, an elastic check ring 25, an anti-backlash check ring 26, an anti-backlash spring 27, a spring groove 28, a locking pin tail 29, a top spring 30, a cover plate.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in the figure, the invention comprises a fixed seat 1 and an inserting module 2 inserted and matched with the fixed seat 1, wherein an inserting positioning ring 3 is arranged in the fixed seat 1, and a cover plate 31 is fixed on the back side of the fixed seat 1. The plug-in module 2 comprises a lock pin body 4, the interior of the lock pin body 4 is hollow, the exterior of the lock pin body is divided into a lock pin head 6 and a lock pin tail 29 by an isolation convex ring 5, a positioning hole 7 is arranged on the peripheral wall of the lock pin head 6, a positioning steel ball 8, an ejection block 9 and a lock pin screw 10 are arranged in the hollow interior of the lock pin body 4, the lock pin screw 10 is divided into a driving section 11, a threaded section 12 and a jacking section 13, the threaded section 12 is in threaded connection with the inner cavity wall of the lock pin body 4, the jacking section 13 jacks the ejection block 9, the ejection block 9 pushes the positioning steel ball 8 to protrude out of the positioning hole 7 to form locking fit with a plug-in positioning ring 3, the driving section 11 extends out of the lock pin body 4 to form positioning plug-in fit with a bottom bolt head 14, the bottom bolt head 14 is linked with the driving section 11, a positioning convex ring 15 is arranged on the periphery, the fixed nut 17 is in threaded connection with the outer peripheral wall of the lock pin tail part 29, a positioning ring cover 18 matched with the positioning convex ring 15 is arranged at the lower end part of the fixed nut 17, and an inner bevel gear ring 19 matched with the outer bevel gear ring 16 is arranged on the inner periphery of the lower end of the fixed nut 17. The ejection block 9 is in a square column shape, the four cylindrical surfaces are provided with the tapered grooves 20 which are in push-press fit with the positioning steel balls 8, the bottom of the ejection block 9 is provided with the arc convex surface 21, the diameter of the jacking section 13 is smaller than that of the thread section 12, the top of the jacking section is provided with the arc concave surface 22, the arc convex surface 21 and the arc concave surface 22 form positioning jacking fit, and jacking is more flexible and reliable due to the fit of the arc surfaces. The middle part and the lower part in the lock pin body 4 are respectively provided with a positioning ring groove 23 and a positioning groove 24, the positioning ring groove 23 is provided with an elastic check ring 25, the jacking section 13 of the lock pin screw 10 penetrates through the elastic check ring 25, the upper end surface of the thread section 12 abuts against the elastic check ring 25, the positioning groove 24 is provided with an anti-back check ring 26, the diameter of the driving section 11 is smaller than that of the thread section 12 and is sleeved with an anti-back spring 27, the anti-back spring 27 is limited and abutted between the anti-back check ring 26 and the lower end surface of the thread section 12, and the arrangement of the elastic check ring 25 and the anti-back spring 27 has the function of stabilizing. A spring groove 28 is formed in the upper end portion of the lock pin body 4, a top spring 30 is installed in the spring groove 28, and the top spring 30 is pressed against the ejection block 9. When locking operation is carried out, the head part 6 of the lock pin is inserted into the inserting positioning ring 3 of the fixed seat 1, the bottom bolt head 14 is rotated, the bottom bolt head 14 enables the thread section 12 of the lock pin screw rod 10 to rotate and rise in the lock pin body 4 through the driving section 11, the circular arc concave surface 22 of the jacking section 13 of the lock pin screw rod 10 is matched with the circular arc convex surface 21 at the bottom of the ejection block 9 to push the ejection block 9 to rise, the top spring 30 is compressed, the conical groove 20 of the ejection block 9 pushes the positioning steel ball 8, part of the positioning steel ball 8 protrudes out of the positioning hole 7 to enter the inserting positioning ring 3 and is fixed by the positioning arc convex 32 arranged at the annular opening part of the inserting positioning ring 3, so that the fixed seat 1 and the inserting module 2 are locked and connected, the fixing nut 17 is screwed continuously, the positioning ring cover 18 arranged at the lower end part of the fixing nut 17 is matched with the positioning convex ring 15, the inner inclined gear, preventing loosening of the bottom bolt head 14. In the unlocking operation, the fixing nut 17 is first loosened, and the inner helical gear 19 of the fixing nut 17 is disengaged from the outer helical gear 16 of the bottom bolt head 14. And then, the bottom bolt head 14 is rotated reversely, the bottom bolt head 14 enables the whole lock pin screw rod 10 to rotate and descend in the lock pin body 4 through the driving section 11, the ejection block 9 slides downwards under the action of the top spring 30, the conical groove 20 of the ejection block 9 is gradually separated from the positioning steel ball 8, the positioning steel ball 8 loses the positioning pressure, when the lock pin head 6 is pulled out from the inserting positioning ring 3, the positioning steel ball 8 returns to the positioning hole 7, the fixing seat 1 is separated from the inserting module 2, and the unlocking is completed.

It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. The electric automobile quick-replacing electric lock body is characterized by comprising a fixing seat (1) and an inserting module (2) in inserting fit with the fixing seat (1), wherein an inserting positioning ring (3) is arranged in the fixing seat (1), the inserting module (2) comprises a lock pin body (4), the inside of the lock pin body (4) is hollow, the outside of the lock pin body is divided into a lock pin head (6) and a lock pin tail (29) by an isolating convex ring (5), a positioning hole (7) is formed in the peripheral wall of the lock pin head (6), a positioning steel ball (8), an ejecting block (9) and a lock pin screw rod (10) are arranged in the hollow of the lock pin body (4), the screw rod (10) is divided into a driving section (11), a thread section (12) and an ejecting section (13), the thread section (12) is in threaded connection with the inner cavity wall of the lock pin body (4), the ejecting section (13) is ejected out of the ejecting block (9), and the ejecting block (9) pushes the positioning steel ball (8) to The driving section (11) extends outside the lock pin body (4) to form a positioning plug-in fit with the bottom bolt head (14), the bottom bolt head (14) is linked with the driving section (11), a positioning convex ring (15) is arranged on the periphery of the upper end part of the bottom bolt head (14), an outer inclined gear ring (16) is formed outside the positioning convex ring (15), a fixing nut (17) is sleeved outside the bottom bolt head (14), the fixing nut (17) is in threaded connection with the outer peripheral wall of the lock pin tail part (29), a positioning ring cover (18) is arranged at the lower end part of the fixing nut (17) to be matched with the positioning convex ring (15), an inner inclined gear ring (19) is arranged on the inner periphery of the lower end of the fixing nut (17) to be matched with the outer inclined gear ring.

2. The electric automobile quick-replacing electric lock body as claimed in claim 1, wherein the ejection block (9) is square column shaped, the four column surfaces are provided with conical grooves (20) which are in push fit with the positioning steel balls (8), the bottom of the ejection block (9) is provided with an arc convex surface (21), the diameter of the jacking section (13) is smaller than that of the thread section (12), the top of the jacking section is provided with an arc concave surface (22), and the arc convex surface (21) and the arc concave surface (22) form positioning push fit.

3. The electric automobile quick-replacing electric lock body as claimed in claim 2, wherein a positioning ring groove (23) and a positioning groove (24) are respectively formed in the middle and the lower portion of the inside of the lock pin body (4), an elastic check ring (24) is arranged at the positioning ring groove (23), the jacking section (13) of the lock pin screw (10) penetrates through the elastic check ring (25) and abuts against the elastic check ring (25) through the upper end face of the threaded section (12), an anti-back check ring (26) is arranged at the positioning groove (24), the diameter of the driving section (11) is smaller than that of the threaded section (12), an anti-back spring (27) is sleeved outside the driving section (11), and the anti-back spring (27) is limited and abutted between the anti-back check ring (26) and the lower end face.

4. The quick electric-changing lock body for the electric automobile as claimed in claim 3, wherein a spring groove (28) is formed in the upper end portion of the lock pin body (4), a top spring (30) is mounted in the spring groove (28), and the top spring (30) is pressed against the ejector block (9).