CN217806157U

CN217806157U - Storage box

Info

Publication number: CN217806157U
Application number: CN202221855222.8U
Authority: CN
Inventors: 师勇智; 刘西彦; 任彦杰
Original assignee: Industrial and Commercial Bank of China Ltd ICBC
Current assignee: Industrial and Commercial Bank of China Ltd ICBC
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-15
Anticipated expiration: 2032-07-05

Abstract

The utility model relates to a finance field provides a containing box, and it includes: a pulley is arranged at one end of the box body; the pull rod is movably arranged on the box body and has an extending state and a receiving state which are oppositely arranged, and the pull rod is provided with a handheld end and a connecting end which is close to the pulley which are oppositely arranged; the limiting part is movably arranged on the pull rod and is provided with a limiting position and a first avoidance position; joint portion, the setting just corresponds spacing portion setting on the box, there is the joint groove joint portion towards one side of pull rod, when spacing portion is in limiting position, spacing portion and joint groove joint, joint portion has first end and the second end that sets up relatively along the extending direction of pull rod, first end is towards the link, joint portion is provided with the drive inclined plane towards the lateral wall of pull rod, the one end on drive inclined plane extends to first end, the interval of drive inclined plane and pull rod reduces gradually towards the direction of keeping away from the link, the joint groove position is in the one side that the first end was kept away from on the drive inclined plane, the drive inclined plane be used for with spacing portion butt cooperation.

Description

Storage box

Technical Field

The utility model relates to a finance field particularly, relates to a containing box.

Background

The mobile terminal device is a special device which has a series of safety measures, is accessed by utilizing a wireless communication network technology and can carry out counter business operation at any place, and the mobile terminal device is widely applied to a bank system. When a banking operator goes out to provide business handling services, the banking operator generally needs to carry a storage box to store the mobile terminal device. The existing containing box is a handheld containing box generally, but the weight of the mobile terminal device is large generally, and the condition that arms are weak can occur when a salesman carries the containing box containing the mobile terminal device for a long time, so that the experience feeling is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a containing box to the easy hypodynamia problem of arm when solving the containing box that is equipped with mobile terminal equipment for a long time of among the prior art by hand.

According to an aspect of the utility model provides a containing box, it includes: the device comprises a box body, wherein one end of the box body is provided with a pulley; the pull rod is provided with a handheld end and a connecting end which are oppositely arranged, the connecting end is arranged close to the pulley, the pull rod is movably arranged on the box body, and the pull rod is provided with an extending state and a receiving state which are oppositely arranged; the limiting part is movably arranged on the pull rod and is provided with a limiting position and a first avoidance position which are oppositely arranged; joint portion, the setting is on the box, and joint portion corresponds spacing portion setting, one side of joint portion towards the pull rod is provided with the joint groove, when spacing portion is in limiting position, spacing portion is spacing with joint groove joint, joint portion has first end and the second end that sets up relatively along the extending direction of pull rod, first end sets up towards the link, be provided with the drive inclined plane on the lateral wall of joint portion's orientation pull rod, and the one end on drive inclined plane extends to first end, the interval of drive inclined plane and pull rod reduces gradually towards the direction of keeping away from the link, the joint groove is located one side of keeping away from first end on drive inclined plane, the drive inclined plane is used for cooperating with spacing portion butt, so that spacing portion is moved to the first position of dodging by limiting position.

Furtherly is provided with the spout on the box, and the movably setting of pull rod is in the spout, and joint portion sets up in the spout.

Furthermore, one side of the pull rod towards the clamping portion is provided with a first avoidance groove, when the limiting portion is located at a limiting position, one end of the limiting portion, away from the pull rod, is located in the first avoidance groove, and when the limiting portion is located at the first avoidance position, one end of the limiting portion, away from the pull rod, is located outside the first avoidance groove.

Further, the spacing portion includes: one end of the first elastic piece is positioned in the first avoidance groove and connected with the pull rod; the joint spare is connected with the other end of first elastic component, and the joint spare is used for cooperating with the joint groove joint.

Further, the containing box still includes the piece that resets, and the piece that resets sets up on the box, and the piece that resets can drive spacing portion and move to first dodging the position by limiting position.

Furthermore, the end, far away from the pull rod, of the clamping portion is provided with a communicating hole, the communicating hole is communicated with the clamping groove, and the resetting piece is movably arranged in the communicating hole.

Further, the containing box still includes: the one end of connecting portion and box articulated setting, the pulley setting is at the other end of connecting portion, and connecting portion have folding position and the support position of relative box setting.

Further, be provided with the second on the box and dodge the groove, the one end setting of connecting portion dodges the inslot at the second, and the containing box still includes: the second elastic piece is arranged between the box body and the connecting part and can provide acting force for the connecting part to rotate from the folding position to the supporting position; and the locking part is arranged on the box body, and can fix the position of the connecting part on the box body when the connecting part is in the folding position.

Furthermore, the locking part is movably arranged on the box body and provided with a locking position and a second avoiding position which are arranged relative to the second avoiding groove, and when the locking part is positioned at the locking position, the locking part can limit the connecting part to rotate relative to the box body; when the locking part is at the second avoiding position, the connecting part can rotate relative to the box body.

Further, the locking portion includes: the third elastic piece is arranged at one end of the second avoidance groove, and one end of the third elastic piece, which is far away from the second avoidance groove, is connected with the box body; the retaining member sets up the one end of dodging the groove at being close to the second of third elastic component, and the retaining member is used for the position of fixed connection portion on the box.

Use the technical scheme of the utility model, through setting up spacing portion and joint portion, can make the pull rod at the rigidity of the relative box when stretching out the state, the business person hand-hold the pull rod remove the containing box can, do not need the portable containing box of business person. Specifically, when using the containing box, to the direction pulling pull rod of keeping away from the pulley, spacing portion moves along with the pull rod, when spacing portion removed the position department to joint portion, the one end and the drive inclined plane butt of the pull rod of keeping away from of spacing portion, the spacing portion of drive inclined plane drive is in first dodges the position, continue to stimulate the pull rod, until spacing portion is relative with the joint groove, spacing portion and drive inclined plane separation, spacing portion is in limiting position to it is spacing with joint groove joint, the position between pull rod and the box keeps relatively fixed. The setting of this scheme can make the salesman pass through pull rod pulling containing box, compares with traditional portable containing box, has avoided the weak condition of arm that long-time portable containing box appears, has promoted salesman's experience and has felt.

Drawings

The accompanying drawings, which form a part of the present application, 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 and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a storage box when a pull rod is in a storage state according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a storage box provided according to an embodiment of the present invention when a draw bar is in an extended state;

fig. 3 shows a schematic structural diagram of the cooperation between the clamping portion and the limiting portion according to an embodiment of the present invention;

fig. 4 shows a schematic structural diagram of the connection portion in the folded position according to the embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a box body; 11. a pulley; 12. a chute; 13. a second avoidance slot; 14. a guide groove;

20. a pull rod; 21. a first avoidance slot;

30. a limiting part; 31. a first elastic member; 32. a clamping piece;

40. a clamping part; 41. a clamping groove; 42. a communicating hole;

50. a reset member;

60. a connecting portion;

70. a second elastic member;

80. a locking portion; 81. a third elastic member; 82. and a locking member.

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.

As shown in fig. 1 to 4, an embodiment of the present invention provides a storage box, which includes a box body 10, a pull rod 20, a limiting portion 30 and a clamping portion 40. Wherein, one end of the case 10 is provided with a pulley 11. The draw bar 20 has a hand-held end and a connecting end which are oppositely arranged, the connecting end is arranged close to the pulley 11, the draw bar 20 is movably arranged on the box body 10, and the draw bar 20 has an extending state and a containing state which are oppositely arranged. The limiting part 30 is movably arranged on the pull rod 20, and the limiting part 30 is provided with a limiting position and a first avoiding position which are oppositely arranged. Joint portion 40 sets up on box 10, and joint portion 40 corresponds spacing portion 30 setting, joint portion 40's one side towards pull rod 20 is provided with joint groove 41, when spacing portion 30 is in limiting position, spacing portion 30 is spacing with joint groove 41 joint, joint portion 40 has the relative first end and the second end that sets up of extending direction along pull rod 20, first end sets up towards the link, be provided with the drive inclined plane on joint portion 40's the lateral wall towards pull rod 20, and the one end on drive inclined plane extends to first end, the interval of drive inclined plane and pull rod 20 reduces gradually towards the direction of keeping away from the link, joint groove 41 is located the one side of keeping away from first end on drive inclined plane, the drive inclined plane is used for cooperating with spacing portion 30 butt, so that spacing portion 30 is moved to the first position of dodging by limiting position.

Use the technical scheme of the utility model, through setting up spacing portion 30 and joint portion 40, can make pull rod 20 when being in the state of stretching out the rigidity of relative box 10, the business person hand-hold pull rod 20 remove the containing box can, do not need the portable containing box of business person. Specifically, when using the containing box, to the direction pulling pull rod 20 of keeping away from pulley 11, spacing portion 30 removes along with pull rod 20, when spacing portion 30 removes the position to joint portion 40, the one end and the drive inclined plane butt of keeping away from pull rod 20 of spacing portion 30, drive inclined plane drive spacing portion 30 is in first dodge the position, continue to stimulate pull rod 20, until spacing portion 30 is relative with joint groove 41, spacing portion 30 separates with the drive inclined plane, spacing portion 30 is in spacing position, and it is spacing with joint groove 41 joint, the position between pull rod 20 and the box 10 keeps relatively fixed. The setting of this scheme can make the salesman pass through 20 pulling containing boxes of pull rod, compares with traditional portable containing box, has avoided the weak condition of arm that long-time portable containing box appears, has promoted salesman's experience and has felt. In addition, the scheme is simple in structure and convenient to operate.

As shown in fig. 1 and 2, the box body 10 is provided with a sliding groove 12, the pull rod 20 is movably disposed in the sliding groove 12, and the engaging portion 40 is disposed in the sliding groove 12. In this scheme, spout 12 sets up at the back of box 10, and the terminal surface of the one end of keeping away from pulley 11 of box 10 is extended to the one end of spout 12, and joint portion 40 sets up the one end of keeping away from pulley 11 at spout 12. So set up, can guarantee that pull rod 20 furthest slides out the spout, promote the convenience of the handheld pull rod of business personnel.

As shown in fig. 3, a first avoiding groove 21 is formed in one side of the pull rod 20 facing the clamping portion 40, when the limiting portion 30 is located at the limiting position, one end of the limiting portion 30, which is far away from the pull rod 20, is located in the first avoiding groove 21, and when the limiting portion 30 is located at the first avoiding position, one end of the limiting portion 30, which is far away from the pull rod 20, is located outside the first avoiding groove 21. Specifically, when the pull rod 20 is in the storage state, the end of the limiting portion 30 away from the pull rod 20 is located in the sliding groove 12, the pull rod 20 is pulled in the direction away from the pulley 11, after the limiting portion 30 abuts against the driving inclined plane, the driving inclined plane drives the limiting portion 30 to gradually retract into the first avoiding groove 21, the pull rod 20 continues to be pulled until the first avoiding groove 21 and the clamping groove 41 are oppositely arranged, and the end of the limiting portion 30 away from the pull rod 20 extends into the clamping groove 41. Above-mentioned setting, its simple structure, and convenient processing.

As shown in fig. 1 and 3, the stopper portion 30 includes a first elastic member 31 and a snap member 32. Wherein, one end of the first elastic member 31 is located in the first avoiding groove 21 and connected to the pull rod 20. The clamping piece 32 is connected with the other end of the first elastic piece 31, and the clamping piece 32 is used for being matched with the clamping groove 41 in a clamping mode. In this embodiment, the first elastic member 31 is a spring, the extending direction of the spring is perpendicular to the extending direction of the pull rod 20, and the engaging member 32 is an engaging column. The spring and the clamping column are arranged, so that the structure is simple, the flexibility is strong, and the clamping effect with the clamping groove 41 is good.

Further, the containing box further comprises a resetting piece 50, the resetting piece 50 is arranged on the box body 10, and the resetting piece 50 can drive the limiting part 30 to move from the limiting position to the first avoidance position. After the reset element 50 drives the limiting portion 30 to move from the limiting position to the first avoiding position, the pull rod 20 is pushed toward the pulley 11, so that the pull rod 20 is in the storage state. The setting of piece 50 that resets can guarantee that pull rod 20 changes to the state of accomodating by the state of stretching out, promotes the convenience when using the containing box.

Further, one end of the catching portion 40 away from the pull rod 20 is provided with a communication hole 42, the communication hole 42 communicates with the catching groove 41, and the restoring member 50 is movably disposed in the communication hole 42. In this embodiment, the communicating hole 42 and the fastening groove 41 are coaxially arranged, the inner diameter of the communicating hole 42 is smaller than that of the fastening groove 41, the fastening groove 41 and the communicating hole 42 form a stepped hole, the reset piece 50 is a columnar structure arranged in a stepped manner, and the shape of the reset piece 50 is matched with that of the stepped hole. When the pull rod 20 needs to be stored, the reset piece 50 is pressed towards the direction of the clamping groove 41, the reset piece 50 drives the clamping piece 32 to move towards the first avoiding groove 21, the clamping piece 32 drives the first elastic piece 31 to contract, and when the clamping piece 32 is completely contracted into the first avoiding groove 21, the pull rod 20 is pushed towards the direction close to the pulley 11. Above-mentioned setting, its simple structure, and the piece that resets 50 can not deviate from in the shoulder hole, has guaranteed the smooth and easy nature of accomodating pull rod 20.

As shown in fig. 1 and 2, the storage box further includes a connecting portion 60, one end of the connecting portion 60 is hinged to the box body 10, the pulley 11 is disposed at the other end of the connecting portion 60, and the connecting portion 60 has a folding position and a supporting position with respect to the box body 10. So set up for when using the containing box, pulley 11 and connecting portion 60 are in the folding position, when can guaranteeing that the containing box is in quiescent condition, the stability of containing box, and can avoid external article and connecting portion 60 and pulley 11 the two circumstances of damaging pulley 11 and connecting portion 60 that take place to collide with.

As shown in fig. 4, the back of the box body 10 is provided with a second avoiding groove 13, one end of the connecting portion 60 is disposed in the second avoiding groove 13, and the storage box further includes a second elastic member 70 and a locking portion 80. Wherein, the second elastic member 70 is disposed between the box body 10 and the connection portion 60, and the second elastic member 70 can provide a force for rotating the connection portion 60 from the folded position to the support position. The locking portion 80 is provided on the casing 10, and when the link 60 is in the folded position, the locking portion 80 can fix the position of the link 60 on the casing 10. The second elastic member 70 and the locking portion 80 are provided, which is simple in structure and convenient to operate. In this embodiment, the second elastic member 70 is a spring, one end of the spring is connected to the bottom wall of the second avoiding groove 13, and the other end of the spring is connected to one side of the connecting portion 60 facing the bottom wall of the second avoiding groove 13. With the arrangement, the second elastic piece 70 can be protected, and the service life of the second elastic piece 70 is ensured.

Specifically, the locking portion 80 is movably disposed on the box body 10, the locking portion 80 has a locking position and a second avoiding position disposed opposite to the second avoiding groove 13, and when the locking portion 80 is located at the locking position, the locking portion 80 can limit the connecting portion 60 to rotate relative to the box body 10; when the locking portion 80 is in the second retracted position, the connecting portion 60 can rotate relative to the housing 10. When the locking portion 80 is at the second avoiding position, the second elastic member 70 drives the connecting portion 60 to rotate the pulley 11 until the connecting portion 60 is at the supporting position. When the pulley 11 is accommodated, the locking portion 80 is located at the second avoiding position, and the connecting portion 60 is rotated into the second avoiding groove 13 until the connecting portion 60 is located in the second avoiding groove 13, and then the position of the connecting portion 60 on the box body 10 is fixed by the locking portion 80.

Specifically, the locking portion 80 includes a third elastic member 81 and a locking member 82. The third elastic element 81 is disposed at one end of the second avoiding groove 13, and one end of the third elastic element 81, which is far away from the second avoiding groove 13, is connected to the box body 10. A locker 82 is provided at an end of the third elastic member 81 adjacent to the second escape groove 13, and the locker 82 serves to fix the position of the connecting part 60 on the housing 10. In this embodiment, the back of the box 10 is further provided with a guide groove 14, the guide groove 14 is located at one end of the second avoidance groove 13, the guide groove 14 is disposed near the pulley 11, and the extending direction of the guide groove 14 is the same as the extending direction of the second avoidance groove 13. Along the extending direction of the guide groove 14, two opposite side walls of the guide groove 14 are respectively provided with a limiting groove, the extending direction of the limiting grooves is the same as that of the guide groove 14, the locking piece 82 is a locking sheet, and two sides of the locking sheet are respectively movably arranged in the two limiting grooves; the third elastic member 81 is a spring, one end of the third elastic member 81 is connected to the end of the guide groove 14 away from the second avoiding groove 13, the other end of the third elastic member 81 is connected to the locking member 82, the third elastic member 81 provides an acting force towards the second avoiding groove 13 to the locking member 82, and when the connecting portion 60 is at the folding position, the top surface of the locking member 82 abuts against the bottom surface of the pulley 11. With the above arrangement, it is possible to ensure the stability of locking the connecting portion 60.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A storage box, characterized in that, the storage box includes:

the device comprises a box body (10), wherein one end of the box body (10) is provided with a pulley (11);

the pull rod (20) is provided with a handheld end and a connecting end which are oppositely arranged, the connecting end is arranged close to the pulley (11), the pull rod (20) is movably arranged on the box body (10), and the pull rod (20) is oppositely arranged in an extending state and a receiving state;

the limiting part (30) is movably arranged on the pull rod (20), and the limiting part (30) is provided with a limiting position and a first avoidance position which are oppositely arranged;

joint portion (40), set up on box (10), just joint portion (40) correspond spacing portion (30) set up, the orientation of joint portion (40) one side of pull rod (20) is provided with joint groove (41), works as spacing portion (30) are in during the limiting position, spacing portion (30) with joint groove (41) joint is spacing, joint portion (40) have the edge first end and the second end that the extending direction of pull rod (20) set up relatively, first end orientation the link sets up, the orientation of joint portion (40) be provided with the drive inclined plane on the lateral wall of pull rod (20), just the one end on drive inclined plane extends to first end, the drive inclined plane with the interval of pull rod (20) is towards keeping away from the direction of link reduces gradually, joint groove (41) are located keeping away from on the drive inclined plane one side of first end, the drive inclined plane be used for with spacing portion (30) butt cooperation, so that spacing portion (30) by limiting position removes to the avoiding the position.

2. The storage box according to claim 1, wherein a sliding groove (12) is provided on the box body (10), the pull rod (20) is movably disposed in the sliding groove (12), and the engaging portion (40) is disposed in the sliding groove (12).

3. The storage box of claim 1, wherein a first avoidance groove (21) is formed in one side, facing the clamping portion (40), of the pull rod (20), when the limiting portion (30) is located at the limiting position, one end, far away from the limiting portion (30), of the pull rod (20) is located in the first avoidance groove (21), and when the limiting portion (30) is located at the first avoidance position, one end, far away from the pull rod (20), of the limiting portion (30) is located outside the first avoidance groove (21).

4. The storage box according to claim 3, wherein the stopper portion (30) includes:

a first elastic member (31), one end of the first elastic member (31) is positioned in the first avoidance groove (21) and is connected with the pull rod (20);

joint spare (32), with the other end of first elastic component (31) is connected, just joint spare (32) be used for with joint groove (41) joint cooperation.

5. The storage box according to claim 1, further comprising a reset member (50), wherein the reset member (50) is disposed on the box body (10), and the reset member (50) can drive the limiting portion (30) to move from the limiting position to the first avoidance position.

6. The receiving box according to claim 5, wherein one end of the clamping portion (40) away from the pull rod (20) is provided with a communication hole (42), the communication hole (42) is communicated with the clamping groove (41), and the reset member (50) is movably disposed in the communication hole (42).

7. The storage box of claim 1, further comprising:

the connecting part (60), one end of the connecting part (60) with the box body (10) is hinged, the pulley (11) is arranged at the other end of the connecting part (60), and the connecting part (60) is provided with a folding position and a supporting position which are arranged relative to the box body (10).

8. The storage box according to claim 7, wherein a second avoiding groove (13) is provided on the box body (10), one end of the connecting portion (60) is provided in the second avoiding groove (13), and the storage box further comprises:

a second elastic member (70), the second elastic member (70) being disposed between the box body (10) and the connecting portion (60), the second elastic member (70) being capable of providing the connecting portion (60) with a force of rotating from the folded position to the support position;

a locking portion (80) provided on the box body (10), and when the connecting portion (60) is in the folded position, the locking portion (80) can fix a position of the connecting portion (60) on the box body (10).

9. The storage box according to claim 8, wherein the locking portion (80) is movably disposed on the box body (10), the locking portion (80) has a locking position disposed opposite to the second avoiding groove (13) and a second avoiding position, and when the locking portion (80) is in the locking position, the locking portion (80) can restrict the connecting portion (60) from rotating relative to the box body (10); when the locking part (80) is at the second avoidance position, the connecting part (60) can rotate relative to the box body (10).

10. The storage box according to claim 9, wherein the locking portion (80) comprises:

the third elastic piece (81) is arranged at one end of the second avoidance groove (13), and one end, far away from the second avoidance groove (13), of the third elastic piece (81) is connected with the box body (10);

retaining member (82), set up being close to of third elastic component (81) the one end of groove (13) is dodged to the second, just retaining member (82) are used for fixing connecting portion (60) are in position on box (10).