CN211088366U

CN211088366U - Connecting device

Info

Publication number: CN211088366U
Application number: CN201922484673.XU
Authority: CN
Inventors: 张国超; 陈铄; 马显; 邓伟峰; 姬亚坤
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-24
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a connecting device, including the holding piece, connecting piece and locking mechanism, the connecting piece includes connecting portion and fender portion of putting, because of connecting portion wear through the holding piece, the finished piece and with being connected of outside carrier, the finished piece is installed on outside carrier, locking mechanism includes locking piece and elastic component, accept in external operating force, locking piece compression elastic component, and break away from with locking cooperation portion, and when external operating force withdraws, the elastic component top pushes away the locking piece and resets, and make locking piece and locking cooperation portion meshing link to each other, and constitute the connecting piece around self central line pivoted restriction. Connecting device, its connecting piece is used for installing the finished piece on outside carrier to after the installation is accomplished, the return under the effect of elastic component of lock piece, the restriction connecting piece rotates around self central line, has better practicality.

Description

Connecting device

Technical Field

The utility model relates to a coupling mechanism technical field, in particular to connecting device.

Background

A new energy vehicle is a typical new energy vehicle in which battery power is typically used to assist or replace a conventional internal combustion engine to power the vehicle. For the existing new energy automobile, the automobile power battery has the problems of long charging waiting time, easy influence on the service life of the battery due to improper operation and the like. Therefore, compared with the prior art, the battery-replaceable new energy vehicle is more popular to users. Consumers using the new energy vehicle do not need to wait for charging the battery, but do rapid battery replacement operation on the vehicle by professionals and professional equipment at the battery replacement station.

The power battery of the existing power-exchanging new energy automobile is fixed on an automobile body (such as a chassis) through a battery locking mechanism, but the battery pack of the automobile is very complicated and complicated to replace, the structure of the existing mechanism for quickly replacing the battery pack is complex, the abrasion to an installation fastener is very serious, a bolt is easy to loosen reversely, and the connection reliability is poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a connecting device to facilitate the installation of a component on an external carrier by using a connecting member, and to prevent the connecting member from rotating around its central line.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

A connecting device is used for installing a workpiece on an external carrier, a connecting matching part used for installing the workpiece is arranged on the external carrier, and a mounting hole is formed in the workpiece, and the connecting device comprises:

The accommodating part is internally provided with an accommodating cavity, and the inner wall of the accommodating cavity is provided with a large opening and a small opening which are oppositely arranged;

The connecting piece comprises a connecting part and a blocking part integrally connected with the connecting part, the connecting part can sequentially penetrate through the large opening, the small opening and the mounting hole to be connected with the connecting matching part, the blocking part is limited in the accommodating cavity, and a locking matching part is formed on the blocking part;

The locking mechanism is positioned in the accommodating cavity and comprises a locking piece and an elastic piece, wherein the locking piece is arranged in a sliding mode along the connecting direction of the connecting part, the elastic piece is positioned between the accommodating piece and the locking piece and is used for receiving external operating force, the locking piece can compress the elastic piece and is separated from the locking matching part, and when the external operating force is removed, the elastic piece can push the locking piece to reset, so that the locking piece is meshed with the locking matching part to be connected, and the connecting piece is limited by rotation of the central line of the connecting piece.

Further, the accommodating part comprises a shell and a cover plate, the accommodating cavity is formed by enclosing the shell and the cover plate, and the cover plate is detachably connected with the shell.

Further, the locking piece and the elastic piece are arranged to be restrained in the accommodating cavity due to the fixed connection between the shell and the cover plate.

Furthermore, both sides opposite to the locking piece are provided with a stop block, the accommodating cavity is provided with a sliding chute for the sliding of the locking piece, one end of the sliding chute is connected with the cover plate, and the other end of the sliding chute is provided with a constraint part for enabling the elastic piece and the locking piece to be constrained between the shell and the cover plate.

Furthermore, the locking piece is positioned on one side of the blocking part, or the locking piece is sleeved outside the blocking part through a central hole formed in the locking piece.

Furthermore, the elastic piece is a spring arranged between the accommodating piece and the locking piece.

Furthermore, the connecting part adopts a screw rod, the locking matching part is a gear formed at the other end of the blocking part relative to one end connected with the screw rod, and teeth capable of being meshed and connected with the gear are formed on the locking piece.

Further, a driving portion is formed at an end of the blocking portion, and the driving portion is configured to be engaged with an external member to screw the screw.

Furthermore, the driving part is a groove formed at the end part of the blocking part, and the cross section of the groove is in a hexagon shape.

Furthermore, the connecting device further comprises an unlocking piece, wherein the unlocking piece comprises the external component and a sleeve sleeved outside the external component, the sleeve and the external component are arranged at intervals, are fixedly connected together through a connecting piece between the sleeve and the external component, and the sleeve applies the external operating force to the locking piece along with the insertion of the external component in the groove.

Compared with the prior art, the utility model discloses following advantage has:

(1) Connecting device, its connecting piece is used for installing the finished piece on outside carrier to after the installation is accomplished, the return under the effect of elastic component of lock piece, the restriction connecting piece rotates around self central line, has better practicality.

(2) The cover plate is detachably connected with the shell, so that the locking piece and the elastic piece are installed conveniently.

(3) Set up the dog and the about portion cooperation that corresponds through both sides, and retrain locking piece and elastic component between casing and apron, do not influence the locking piece and slide, and the locking piece slides steadily.

(4) The elastic part adopts a spring, is a mature part and has lower cost.

(5) The connecting part adopts a screw rod, so that the connecting reliability is higher.

(6) Through setting up locking cooperation portion into the gear to become the shaping tooth on the locking piece, even the connecting piece rotates, also convenient links to each other with the locking piece meshing, and it is more convenient to use.

(7) The driving part is arranged at the end part of the blocking part, so that the connecting piece can be matched with an external component to screw the connecting piece.

(8) The driving part is arranged to be a groove, so that the occupied space is small.

(9) The special unlocking piece is arranged, so that the operation is convenient, and a certain anti-theft effect can be achieved.

Drawings

The accompanying drawings, which form a part hereof, 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 invention without undue limitation. In the drawings:

Fig. 1 is a schematic structural diagram of a connection device according to a first embodiment of the present invention in an application state;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

Fig. 3 is a schematic structural view of a connecting device according to a first embodiment of the present invention without an unlocking member;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of the locking member of FIG. 4 shown disengaged from the locking engagement portion;

Fig. 6 is a schematic structural diagram of a connecting member according to a first embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a housing according to a first embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a cover plate according to a first embodiment of the present invention;

Fig. 9 is a schematic structural diagram of a locking member according to a first embodiment of the present invention;

Fig. 10 is a schematic view of an unlocking member according to a first embodiment of the present invention;

Fig. 11 is a schematic structural view of a connection device according to a second embodiment of the present invention in an applied state;

Fig. 12 is a schematic structural view of a connecting device according to a second embodiment of the present invention without an unlocking member;

3 FIG. 3 13 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 12 3; 3

FIG. 14 is a schematic view of the latch of FIG. 13 shown disengaged from the latch mating portion;

Fig. 15 is a schematic structural view of a housing according to a second embodiment of the present invention;

Fig. 16 is a schematic structural view of a cover plate according to a second embodiment of the present invention;

Fig. 17 is a schematic structural view of a locking member according to a second embodiment of the present invention;

Fig. 18 is a schematic structural view of a connection device according to a third embodiment of the present invention in an applied state;

Description of reference numerals:

1-a part, 2-a receiving part, 3-a connecting piece, 4-a locking part, 5-an elastic part, 6-an unlocking part and 7-a screw;

201-shell, 2011-shell connecting hole, 202-cover plate, 2021-cover plate connecting hole, 203-large opening, 204-small opening, 205-sliding groove, 206-constraint part;

301-connecting part, 302-blocking part, 3021-locking matching part, 303-groove;

401-stop, 402-tooth;

601-outer member, 602-sleeve.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The embodiment relates to a connecting device, which is used for installing a workpiece on an external carrier.

Based on the above overall structural description, an exemplary structure of the connection device in the application state of the present embodiment is shown in fig. 1 and 2, and the specific structure of the connection device can be seen with reference to fig. 3 to 5. For a better understanding of the present embodiment, the structure of the outer carrier and the object 1 will be briefly described below.

The structure diagram of the external carrier is not shown, and it is mainly used for installing the product 1 of the present embodiment, and in order to facilitate the installation of the product 1, a connection matching portion for installing the product 1 is provided on the external carrier. In this embodiment, the external carrier may be a battery pack mounting structure on a vehicle body, and the connection fitting portion is a threaded hole formed in the battery pack mounting structure.

An exemplary structure of the product 1 can be shown in fig. 1 and fig. 2, in this embodiment, the product 1 can be an existing battery pack, a mounting hole is formed on the battery pack, and the battery pack can be fixed on a battery pack mounting structure through a connecting member 3 described below.

The structure of the receptacle 2 will be described below with reference to fig. 3 to 5 and fig. 7 and 8. The receiving member 2 includes a housing 201 and a cover plate 202, and a receiving cavity is formed between the housing 201 and the cover plate 202, wherein the housing 201 is configured as shown in fig. 7, a cross section of the housing 201 is square, the receiving cavity is formed in the housing 201, and the receiving cavity penetrates through two ends of the housing 201. In this structure, the housing 201 may have other shapes, such as a diamond shape, besides a square shape.

In a preferred embodiment, the receiving cavity has a sliding slot 205 for the locking member 4 to slide, one end of the sliding slot 205 is open for being connected to a cover plate 202, and the other end of the sliding slot 205 is provided with a restraining portion 206 for restraining the elastic member 5 and the locking member 4 in the sliding slot 205. Besides, the other end of the sliding groove 205 may not cooperate with the restraining portion 206 by the cover plate 202 to restrain the elastic member 5 and the lock member 4 between the housing 201 and the cover plate 202, and the elastic member 5 and the lock member 4 are provided in the sliding groove 205, for example, a structure similar to the restraining portion 206 may be provided on the housing 201.

In addition, a housing connection hole 2011 is further formed in the housing 201, in a preferred embodiment, the housing connection hole 2011 is four threaded holes, and the four threaded holes are circumferentially arranged around the receiving cavity, wherein two threaded holes which are oppositely arranged are used for connecting the housing 201 and the cover plate 202, and in addition, two threaded holes which are oppositely arranged are used for connecting the housing 201 and the battery pack, so that better connection reliability is achieved.

The cover 202 is a thin plate as shown in fig. 8, and a small opening 204 is formed in the middle of the cover 202, the diameter of the small opening 204 is smaller than the diameter of the stopper 302, and a cover connection hole 2021 is formed in the edge of the cover 202. In this embodiment, the cover connection holes 2021 are four circumferentially arranged around the small opening 204, and the positions of the cover connection holes 2021 correspond to the positions of the case connection holes 2011, so that the cover 202 can be connected to the case connection holes 2011 via the screws 7 passing through two cover connection holes 2021 which are oppositely arranged, thereby fixedly connecting the case 201 and the cover 202 together, and the accommodating member 2 can be fixedly connected to the battery pack via the screws passing through the other two cover connection holes 2021 and the case connection holes 2011 which are oppositely arranged. The small opening 204 forms an opening on the inner wall of the housing chamber, and the opening at the other end of the housing chamber is a large opening 203 on the inner wall of the housing chamber, with respect to the small opening 204. Here, the case connection hole 2011 and the cover connection hole 2021 for facilitating connection with the battery pack may not be provided in the receptacle 2, and the receptacle 2 may be fixed by connection of the connector 3 to an external member.

In the above configuration, the cover plate 202 and the housing 201 are detachably connected via the screw 7, and the lock member 4 and the elastic member 5 described below are restrained in the accommodation chamber by the fixed connection of the housing 201 and the cover plate 202. In addition to the detachable connection, other detachable connection structures, such as a snap connection, may be used between the cover 202 of the housing 201 to facilitate the assembly of the elastic member 5 and the locking member 4. The housing 201 and the cover plate 202 may be non-detachably connected, for example, the housing 201 and the cover plate 202 are fixed together by bonding or welding, which is only disadvantageous for the assembly of the locking member 4 and the elastic member 5.

The structure of the connecting member 3 can be shown in fig. 3 to 6, and it includes a connecting portion 301, and a stop portion 302 integrally connected to the connecting portion 301, in a preferred embodiment, the connecting portion 301 is a screw. A lock engagement portion 3021 is formed on the other end of the stop portion 302 relative to the end of the connecting screw, and in a preferred embodiment, the lock engagement portion 3021 is a gear formed on the stop portion 302 for engaging with a tooth 402 described below.

It should be noted that, in order to facilitate the screw tightening, a driving portion is formed at an end of the stopper portion 302, and the driving portion is configured to be engaged with the external member 601 to tighten the screw. In this embodiment, the driving portion is preferably a groove 303 formed at the end of the blocking portion 302, and the cross section of the groove 303 is a hexagon, but the driving portion may also be other structures, such as a boss formed at the end of the blocking portion 302. The cross section of the groove 303 is not limited to the inner hexagon, and for example, the groove may be an inner hexagon to facilitate the screw to be driven to tighten with the external member 601.

The locking mechanism is located in the receiving cavity, specifically located in the sliding groove 205, and includes a locking member 4 slidably disposed along the connecting direction of the connecting portion 301, and an elastic member 5 disposed between the receiving member 2 and the locking member 4. In this embodiment, the elastic member 5 is preferably a spring disposed between the receiving member 2 and the locking member 4, and in this embodiment, one end of the spring is disposed on the cover plate 202, and the other end of the spring is disposed on the locking member 4.

In order to prevent the locking member 4 from being disengaged, the two opposite sides of the locking member 4 are respectively provided with a stop 401, teeth 402 capable of being meshed with the gear are formed on the locking member 4, the number and the shape of the teeth 402 are not limited, the teeth are convenient to be connected with the locking matching part 3021, and the connecting member 3 is limited to rotate around the axial center line of the teeth. In this structure, it should be noted that the lock member 4 is embedded in the slide groove 205 and can slide in the slide groove 205 relative to the housing 201, but cannot rotate around the axial center line of the link member 3, and therefore can engage with the lock engagement portion 3021 to restrict the link member 3 from rotating around its own axial center line.

For convenience of use, the connecting device of the present embodiment further includes an unlocking unit 6, and the structure of the unlocking unit 6 can be specifically shown in fig. 10, which includes an external member 601, and a sleeve 602 sleeved outside the external member 601, wherein the sleeve 602 and the external member 601 are disposed at a distance, and are fixedly connected together by a connecting member between the two. In this embodiment, the external member 601 is preferably a rod with a hexagonal cross section, and other structures can be used to mate with the driving portion to screw the connecting member 3.

The structure of the connecting piece in this embodiment is not shown, and it may be a circular plate fixed to the end of the external member 601, and the edge of the circular plate is fixed to the sleeve 602, but of course, the structure of the connecting piece is not limited to the circular plate, and it is sufficient to connect the external member 601 and the sleeve 602 together. The arrangement of the structure enables the sleeve 602 to apply external operating force to the locking piece 4 along with the insertion of the external component 601 in the groove 303, and the unlocking piece 6 is rotated, so that the external acting force applied to the locking piece 4 is not influenced, and the structure can also play a certain anti-theft role because the special unlocking piece 6 is needed.

Due to the arrangement of the structure, the connecting part 301 sequentially penetrates through the large opening 203, the small opening 204 and the mounting hole to be connected with the connecting matching part, so that the battery pack is mounted on the battery pack mounting structure, and the blocking part 302 is limited in the accommodating cavity; and receiving an external operating force, the lock member 4 can compress the elastic member 5, so that the lock member 4 is disengaged from the lock fitting portion 3021 without restricting the connecting member 3 from rotating about its center line, as can be seen in fig. 5. It should be noted that fig. 5 does not show the structure of the unlocking member 6, and the unlocking member 6 is used to apply an upward force to the locking member 4, so that the locking member 4 can be positioned as shown in fig. 5, and at the same time, the unlocking member 6 is rotated to tighten the connecting member 3. When the external operating force is removed, the elastic piece 5 pushes the locking piece 4 to reset, so that the locking piece 4 is meshed with the locking matching part 3021, and the rotation of the connecting piece 3 around the central line of the connecting piece is limited.

Example two

As shown in fig. 11 to 14, the connecting device of the present embodiment has substantially the same structure as the connecting device of the first embodiment, and mainly differs in the structure of the housing 201, the structure of the lock member 4, and the structure of the elastic member 5.

Referring first to fig. 13 in conjunction with the structure of the housing 201 shown in fig. 15, the housing 201 has a different shape from the square shape of the first embodiment. In this embodiment, the middle of the cross section of the housing 201 is approximately circular, the two opposite sides are provided with outward protruding portions, the cross section of the accommodating cavity is approximately the same as the cross section of the housing 201, the outward protruding portions on the two sides of the accommodating cavity form the sliding slots 205 of this embodiment, and one side of each sliding slot 205 is provided with the restraining portion 206.

The shape of the cover plate 202 is shown in fig. 16, and it is the same as the shape of the housing 201, so as to be fixedly connected with the housing 201, and the middle part is also provided with a small opening 204. The connection mode of the cover plate 202 and the housing 201 can refer to the description in the first embodiment, and the detailed description in this embodiment is omitted.

The structure of the locking member 4 can be seen in fig. 17, which is a thin plate, not a block in the first embodiment. In this embodiment, the cross sectional shape of the locking member 4 is the same as the cross sectional shape of the accommodating cavity, the stoppers 401 are formed on both sides of the locking member 4, the central hole is formed in the middle of the locking member 4, and the teeth 402 are arranged on the entire circumference of the inner wall of the central hole.

The structure of the elastic member 5 can be seen in fig. 13 and 14, and it adopts a spring sleeved outside the retaining portion.

The arrangement of the above structure enables the locking member 4 and the elastic member 5 to be sleeved outside the blocking portion 302 due to the fixed connection between the housing 201 and the cover plate 202, and the locking member 4 and the elastic member 5 are constrained between the housing 201 and the cover plate 202.

Fig. 13 shows the lock member 4 and the lock engagement portion 3021 in the engaged state, and fig. 14 shows the lock member 4 and the lock engagement portion 3021 in the disengaged state, and the use method of the connecting device of the present embodiment is the same as that of the embodiment, and detailed description thereof will be omitted.

EXAMPLE III

The present embodiment relates to a connecting device, which has substantially the same structure as the connecting device of the second embodiment, and the difference is that the receiving member 2 and the object 1 are fixedly connected together, specifically, the housing 201, the cover plate 202 and the object 1 are fixedly connected together by a connecting member 3, such as a screw, and besides, the receiving member 2 and the object 1 can be connected by clamping, welding or other methods. It should be noted that the receiving member in the first embodiment can also be fixedly connected with the object 1 with reference to the present embodiment.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting device is used for installing a workpiece (1) on an external carrier, a connecting matching part used for installing the workpiece (1) is arranged on the external carrier, and a mounting hole is formed in the workpiece (1), and the connecting device is characterized by comprising:

The container (2) is internally provided with a container cavity, and the inner wall of the container cavity is provided with a large opening (203) and a small opening (204) which are oppositely arranged;

The connecting piece (3) comprises a connecting part (301) and a blocking part (302) integrally connected with the connecting part (301), the connecting part (301) can sequentially penetrate through the large opening (203), the small opening (204) and the mounting hole to be connected with the connecting matching part, the blocking part (302) is limited in the accommodating cavity, and a locking matching part (3021) is formed on the blocking part (302);

The locking mechanism is positioned in the accommodating cavity and comprises a locking piece (4) which is arranged in a sliding mode along the connecting direction of the connecting part (301), an elastic piece (5) which is positioned between the accommodating piece (2) and the locking piece (4) and is used for receiving external operating force, the locking piece (4) can compress the elastic piece (5) and is separated from the locking matching part (3021), when the external operating force is removed, the elastic piece (5) can push the locking piece (4) to reset, so that the locking piece (4) is meshed with the locking matching part (3021) to be connected, and the connecting piece (3) is limited in rotation around the central line of the connecting piece.

2. The connection device of claim 1, wherein: the accommodating part (2) comprises a shell (201) and a cover plate (202), the accommodating cavity is formed by enclosing the shell (201) and the cover plate (202), and the cover plate (202) is detachably connected with the shell (201).

3. The connection device of claim 2, wherein: the locking member (4) and the elastic member (5) are arranged to be constrained in the housing cavity due to the fixed connection between the housing (201) and the cover plate (202).

4. The connection device of claim 3, wherein: both opposite sides of the locking piece (4) are provided with stop blocks (401), the accommodating cavity is provided with a sliding groove (205) for the sliding of the locking piece (4), one end of the sliding groove (205) is connected with the cover plate (202), and the other end of the sliding groove (205) is provided with a constraint part (206) for constraining the elastic piece (5) and the locking piece (4) between the shell (201) and the cover plate (202).

5. The connection device of claim 3, wherein: the locking piece (4) is positioned on one side of the blocking part (302), or the locking piece (4) is sleeved outside the blocking part (302) through a central hole formed in the locking piece (4).

6. The connection device of claim 1, wherein: the elastic piece (5) is a spring arranged between the accommodating piece (2) and the locking piece (4).

7. The connection device according to any one of claims 1 to 6, wherein: the connecting part (301) adopts a screw rod, the locking matching part (3021) is a gear formed at the other end of the blocking part (302) relative to one end connected with the screw rod, and teeth (402) capable of being meshed and connected with the gear are formed on the locking piece (4).

8. The connection device of claim 7, wherein: a driving part is formed at the end of the blocking part (302), and the driving part is configured to be matched with an external component (601) to screw the screw.

9. The connection device of claim 8, wherein: the driving part is a groove (303) formed at the end part of the blocking part (302), and the cross section of the groove (303) is in a hexagon shape.

10. The connection device of claim 9, wherein: the connecting device further comprises an unlocking piece (6), wherein the unlocking piece (6) comprises the outer component (601) and a sleeve (602) sleeved outside the outer component (601), the sleeve (602) and the outer component (601) are arranged at intervals, are fixedly connected together through a connecting piece between the sleeve (602) and the outer component (601), and enable the sleeve (602) to apply the external operating force to the locking piece (4) along with the insertion of the outer component (601) in the groove (303).