CN215121415U

CN215121415U - Box structure

Info

Publication number: CN215121415U
Application number: CN202120687837.3U
Authority: CN
Inventors: 陶高周; 杨善文; 时晓蕾
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-12-10
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a box structure, this box structure include box and case lid. The box is equipped with first joint structure, the case lid be equipped with the second joint structure of first joint structure correspondence joint, so that the case lid can the joint install in on the box. First joint structure with one of them of second joint structure includes the joint groove and locates the chucking structure of joint inslot, another inserts the joint inslot, and with chucking structure elasticity joint. The utility model discloses in some current box structures can be solved to the box structure, the not convenient enough technical problem of dismouting of its case lid.

Description

Box structure

Technical Field

The utility model relates to a case lid installation technical field, in particular to box structure.

Background

In some existing box structures, the box cover is mainly fixedly installed on the box body through screws, but the mode of fixing the screws is inconvenient for the disassembly and assembly of the box cover, particularly when the position of the box cover connected with the box body is in an arc-shaped appearance, the mode of installing the screws is more inconvenient, and the screw holes formed in the box cover can influence the appearance of the box structure.

The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a box structure aims at solving some current box structures, and the dismouting of its case lid is convenient enough technical problem.

In order to achieve the above object, the utility model provides a box structure includes box and case lid. The box is equipped with first joint structure, the case lid be equipped with the second joint structure of first joint structure correspondence joint, so that the case lid can the joint install in on the box. First joint structure with one of them of second joint structure includes the joint groove and locates the chucking structure of joint inslot, another inserts the joint inslot, and with chucking structure elasticity joint.

In an embodiment, the second clamping structure includes the clamping groove and the clamping structure, and the clamping structure includes a spring plate; the first clamping structure comprises a clamping connector, the clamping connector is provided with a clamping surface corresponding to the elastic sheet, and the clamping surface inclines towards one side where the elastic sheet is located and corresponds to the clamping surface in the direction away from the box body.

In one embodiment, the inner wall surface of the elastic sheet and the clamping surface are tightly attached to each other.

In one embodiment, the elastic pieces are provided with a plurality of elastic pieces which are connected to the notches of the clamping grooves and clamped with the clamping connectors together.

In an embodiment, the first clamping structure further includes a connecting member, and the connecting member is fixed on the cover and provided with the clamping groove.

In one embodiment, the card connector further has a guide surface connected to an end of the card contact surface away from the box body, and the guide surface is gradually inclined to a side away from the card contact surface in a direction away from the box body.

In one embodiment, the clamping joint is formed by bending an elastic sheet and is provided with two opposite guide surfaces and two opposite clamping surfaces; the elastic pieces are two and are respectively abutted against the two clamping surfaces in a one-to-one correspondence mode.

In an embodiment, the first clamping structure further includes a fixing pin, and the fixing pin is connected to one end of the clamping surface away from the guide surface and is fixedly connected to the box body.

In an embodiment, the box cover is provided with a mounting area in an arc structure, the mounting area is provided with a first mounting surface facing the box body, and the second clamping structure is fixed on the first mounting surface. And/or, a second mounting surface is arranged on the box body, the second mounting surface is positioned at the box opening of the box body and faces towards the box cover along the opening direction of the box opening, and the first clamping structure is fixed on the second mounting surface.

In an embodiment, a blocking ring is further arranged at the box opening of the box body, and the blocking ring is located on one side, close to the box opening, of the first clamping structure and surrounds the box opening of the box body.

The utility model discloses the box structure sets up second joint structure through setting up first joint structure on the box on the case lid, and then the case lid can be through first joint structure and second joint structure joint on the box. Compare in the screw connection mode, the dismouting of not only being convenient for has still avoided the condition that influences the box outward appearance when seting up the screw hole on the case lid.

In addition, in this embodiment, one of them in first joint structure and the second joint structure includes the joint groove and locates the chucking structure of joint inslot, and another person inserts behind this joint groove by the elastic clamping of chucking structure. Can understand, the setting of chucking structure can avoid first joint structure and second joint structure not hard up or the condition of rocking to appear when the joint, and then avoids the relative box of case lid to rock, has improved the reliability of case lid installation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments 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 present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a box structure of the present invention;

FIG. 2 is an exploded view of the box structure of FIG. 1;

FIG. 3 is a schematic structural view of an embodiment of a case cover in the case structure of the present invention;

fig. 4 is a schematic structural diagram of an embodiment of a first clamping structure and a second clamping structure in the box structure of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of a second clamping structure in the box structure of the present invention;

fig. 6 is a schematic structural diagram of an embodiment of a first clamping structure in the box structure of the present invention;

fig. 7 is a schematic structural diagram of an embodiment of the box structure of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						10	Box structure	214	Fixing foot	312	Clamping structure
20	Box body	22	Second mounting surface	313	Spring plate
						21	First clamping structure	23	Baffle ring	314	Connecting piece
211	Clamp connector	30	Box cover	32	Mounting area
						212	Clamping surface	31	Second clamping structure	321	First of allMounting surface
213	Guide surface	311	Clamping groove

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a box structure.

In the embodiment of the present invention, as shown in fig. 1 to 3, the box structure 10 includes a box body 20 and a box cover 30. The box 20 is mainly used for accommodating articles, such as electronic equipment, machine equipment, and the like. The box body 20 generally has a receiving cavity and a box opening, and articles are put into the receiving cavity from the box opening, and then the box opening is sealed by the box cover 30. The size, shape, material, etc. of the box 20 are not specifically limited, and in order to more clearly describe the technical solution of the present application, the present embodiment is described by taking the box-shaped box structure 10 as an example (the same applies below).

The cover 30 is mainly used to seal the opening of the box, and the size, shape and material of the cover 30 are not limited specifically, for example, the cover 30 may be plate-shaped, block-shaped or box-shaped, and may be designed specifically to cooperate with the box 20.

Because some conventional box structures have the box cover 30 fixed to the box 20 mainly by screws, the screws are not convenient for the box cover 30 to be assembled and disassembled, and the screw holes formed on the box cover 30 also affect the appearance of the box structure 10. Therefore, in this embodiment, the box 20 is provided with a first clamping structure 21, and the box cover 30 is provided with a second clamping structure 31 correspondingly clamped with the first clamping structure 21, so that the box cover 30 can be clamped and mounted on the box 20. The first clamping structure 21 and the second clamping structure 31 may be in a relationship of a clamping protrusion and a clamping groove, for example, when the first clamping structure 21 is the clamping protrusion, the second clamping structure 31 is the clamping groove. When the first clamping structure 21 is a clamping groove, the second clamping structure 31 is a clamping protrusion, and can be set according to the requirement.

It can be understood that, compared with the screw connection mode, when the case cover 30 is installed on the case body 20 in the clamping mode, the case cover 30 and the case body 20 can be more conveniently disassembled and assembled, and the case cover 30 is pressed onto the case body during installation, so that the first clamping structure 21 and the second clamping structure 31 are mutually clamped and connected. During disassembly, the cover 30 and the box 20 are separated by force, so that the first latch structure 21 and the second latch structure 31 are separated from the interface.

In addition, first joint structure 21 can set up on the surface that faces case lid 30 on box 20, and second joint structure 31 can set up on the surface that faces box 20 on case lid 30, and then when case lid 30 and box 20 blocked joint mutually, first joint structure 21 and second joint structure 31 can both be hidden in holistic box structure 10, have avoided seting up the condition that influences box 20 outward appearance when the screw hole on case lid 30.

And first joint structure 21 and second joint structure 31 can be because joint clearance, vibrations environment etc. reason and not hard up or rock relatively when mutual joint, and then can lead to case lid 30 to rock relative box 20. Therefore, in this embodiment, as shown in fig. 4, one of the first clamping structure 21 and the second clamping structure 31 includes a clamping groove 311 and a clamping structure 312 disposed in the clamping groove 311, and the other one is inserted into the clamping groove 311 and elastically clamped with the clamping structure 312.

Specifically, for example, the second clamping structure 31 includes a clamping groove 311 and a clamping structure 312, wherein the clamping structure 312 is a member capable of being elastically clamped with the first clamping structure 21 and preventing the first clamping structure 21 from shaking randomly. For example, the retaining structure 312 may be a spring 313, an elastic rubber, a spring, or other resilient member (or assembly).

For realizing that clamping structure 312 both had been to first clamping structure 21 elastic clamping, avoided first clamping structure 21 to rock at will again, only need all need set up spacing face on first clamping structure 312, this spacing face can be horizontal plane, inclined plane, arc surface etc. clamping structure 312 and this spacing face elasticity butt, it keeps away from joint groove 311 to have restricted first clamping structure 21, clamping structure 312's elastic force can avoid first clamping structure 21 to rock at will again.

Of course, the clamping structure 312 may also be a member with a relatively high rigidity, and at this time, the first clamping structure 21 may be an elastic member, and then the first clamping structure 21 is elastically deformed when being inserted into the clamping groove 311 until being clamped by the clamping structure 312.

In addition, the form of the locking slot 311 can be various, for example, a slot can be directly formed on the case cover 30 or the case body 20, and then the locking structure 312 is installed in the slot. The component with the clamping groove 311 and the clamping structure 312 can also be fixedly installed on the case cover 30 or the case body 20, and can be specifically set according to actual needs.

It can be understood that the clamping structure 312 can prevent the first clamping structure 21 and the second clamping structure 31 from loosening or shaking during clamping, so as to prevent the box cover 30 from shaking relative to the box body 20, thereby improving the reliability of the installation of the box cover 30. But also because the elastic clamping does not affect the convenience of assembly and disassembly between the cover 30 and the box 20.

It should be noted that the number, the position, and the like of the first latch structure 21 and the second latch structure 31 can be set according to actual needs. For example, the first clamping structure 21 and the second clamping structure 31 may be respectively provided in plural numbers, and the case cover 30 may be more firmly and reliably mounted on the case 20 by mutually clamping the plural first clamping structures 21 and the plural second clamping structures 31.

For the arrangement positions of the first clamping structure 21 and the second clamping structure 31, for example, the first clamping structure and the second clamping structure may be arranged at intervals along the circumferential direction of the case cover 30 and the case body 20, so as to ensure that each stress point between the case cover 30 and the case body 20 is more uniform and balanced. In other embodiments, the cover 30 has an arc position to be connected to the box 20, and the first latch structure 21 and the second latch structure 31 are disposed corresponding to the arc position, so that the arc position does not need to be connected to the box 20 by screws, which improves the convenience of installing the cover 30. Other positions on the cover 30 can be clamped by the first clamping structure 21 and the second clamping structure 31, or can be directly connected by screws.

In an embodiment, as shown in fig. 4 to 6, the second clamping structure 31 includes the clamping groove 311 and the clamping structure 312, and the clamping structure 312 includes an elastic piece 313; the first clamping structure 21 includes a clamping head 211, the clamping head 211 has a clamping surface 212 corresponding to the elastic sheet 313, the clamping surface 212 is inclined toward a side where the corresponding elastic sheet 313 is located in a direction away from the box body 20, and when the elastic sheet 313 is pressed by the clamping head 211, the elastic sheet is elastically deformed and elastically abuts against the clamping surface 212.

The elastic sheet 313 may be disposed at a notch of the clamping groove 311, so that the clamping head 211 can be directly extruded and deformed when inserted. For example, in one embodiment, as shown in fig. 5, the first clamping structure 21 further includes a connecting member 314, the connecting member 314 is used to be fixed on the cover 30, and the connecting member 314 includes a housing and a clamping groove 311 enclosed by the housing. An unbent elastic sheet is cut on the shell without cutting, and the unbent elastic sheet is bent into the clamping groove 311 to form the elastic sheet 313. And after the non-bent elastic sheet is bent into the clamping groove 311 to form the elastic sheet 313, the opening left on the surface of the shell is the notch for inserting the clamping head 211, and then the clamping head 211 can directly extrude the elastic sheet 313 when being inserted into the clamping groove 311.

The card joint 211 is mainly abutted against the elastic sheet 313 through the card joint surface 212 thereon, and the card joint surface 212 may be an inclined annular surface, or may be a single inclined plane or an arc surface. For example, when the snap joint 211 has an annular structure or a cylindrical structure, the snap surface 212 is an annular surface, and the elastic piece 313 can abut against any position on the annular surface. When the clamping joint 211 is formed by bending a sheet structure or a strip structure, the clamping surface 212 is a single inclined plane or a cambered surface.

It can be understood that, because the elastic sheet 313 has a larger elastic force, the elastic sheet 313 abuts against the obliquely arranged clamping surface 212, so that the clamping structure 312 can be strongly clamped with the first clamping structure 21, the first clamping structure 21 and the second clamping structure 31 are prevented from randomly swinging during clamping, and the box cover 30 is further prevented from swinging relative to the box body 20. In addition, the elastic sheet 313 is simple in structure and easy to obtain, and is beneficial to simplifying the production process and improving the production efficiency.

In one embodiment, as shown in fig. 4, to secure the cover 30 and the case 20, the inner wall surface of the elastic piece 313 and the engaging surface 212 are tightly attached to each other. With reference to the state of the first engaging structure 21 inserted into the engaging groove 311, the inner wall surface of the elastic piece 313 is the surface facing the first engaging structure 21. It can be understood that, the contact area between the elastic sheet 313 and the clamping head 211 and the friction force between the two are increased by the way of the surface-to-surface close contact, so that it can be further ensured that the first clamping structure 21 and the second clamping structure 31 (i.e. between the box cover 30 and the box body 20) are not easy to relatively shake.

In an embodiment, as shown in fig. 4 or 5, a plurality of elastic sheets 313 are provided, and the plurality of elastic sheets 313 are connected to the notches of the clamping grooves 311 and jointly clamp and clamp the clamping head 211. For example, two spring pieces 313 may be provided, and the two spring pieces 313 are oppositely arranged and jointly clamp and clamp the clamping head 211. Or the number of the elastic pieces 313 can be three, four, six, etc., and the specific number can be selected according to the actual requirement. It can be understood that, because the plurality of elastic sheets 313 clamp and clamp the clamping head 211 together, the stress of the clamping head 211 is more balanced and stable, and the reliability of fixing the box cover 30 on the box body 20 is further improved.

In an embodiment, please refer to fig. 3 and 5, the first clamping structure 21 further includes a connecting member 314, the connecting member 314 is fixed on the case cover 30 and is provided with the clamping groove 311, and the elastic sheet 313 is connected in the clamping groove 311. Specifically, in the present embodiment, the connecting member 314 includes a housing and a clip groove 311 enclosed by the housing. An unbent elastic piece 313 is cut on the shell without cutting off, and the unbent elastic piece 313 is formed after being bent towards the clamping groove 311. And after the non-bent elastic sheet 313 is bent towards the clamping groove 311 to form the elastic sheet 313, the opening left on the surface of the shell is the notch for the clamping head 211 to be inserted, and then the clamping head 211 can directly extrude the elastic sheet 313 when being inserted into the clamping groove 311.

It can be understood that, because the clamping groove 311 and the clamping structure 312 (i.e. the elastic sheet 313) are formed on the connecting member 314, the second clamping structure 31 can be processed and manufactured independently of the case cover 30, and then can be mounted on the case cover 30 by welding, gluing and other methods, so that the second clamping structure 31 can be processed and mounted more simply and conveniently.

In an embodiment, referring to fig. 2, fig. 4 and fig. 6, in order to facilitate the insertion of the card connector 211 into the card slot 311, the card connector 211 further has a guiding surface 213, the guiding surface 213 is connected to an end of the card connector surface 212 away from the box body 20, and the guiding surface 213 is inclined toward a side away from the card connector surface 212 in a direction away from the box body 20. It is understood that the guiding surface 213 is inclined to the side away from the locking surface 212, i.e. to the side away from the elastic piece 313, and the locking surface 212 is inclined to the side where the elastic piece 313 is located, so that the locking head 211 has a structure with two smaller ends and a larger middle. Therefore, when the card connector 211 is inserted into the card slot 311, the guide surface 213 can first press the elastic piece 313 and move relative to the elastic piece 313 until the elastic piece 313 is separated from the guide surface 213 and abuts against the card connecting surface 212 of the card connector 211. And further, the smooth insertion of the card connector 211 and the clamping and clamping of the elastic sheet 313 to the card connector 211 are realized.

In one embodiment, as shown in fig. 6, the snap joint 211 is formed by bending an elastic sheet and has two opposite guide surfaces 213 and two opposite snap joint surfaces 212; the number of the elastic pieces 313 is two, and the two elastic pieces 313 are respectively and correspondingly abutted against the two clamping surfaces 212 one by one. In the present embodiment, since the snap joint 211 is formed by bending an elastic sheet, the snap joint 211 itself may be elastically deformed. When the clamping connector 211 is inserted into the clamping groove 311, the clamping connector 211 and the elastic sheet 313 are deformed, so that the deformation of the elastic sheet 313 caused by extrusion deformation is smaller, and the problem that the deformation of the elastic sheet 313 is too large each time to influence the service life is avoided. In addition, the clamping head 211 is formed by bending an elastic sheet, so that the processing technology of the first clamping structure 21 is simplified, the weight of the first clamping structure 21 is reduced, and the first clamping structure 21 is lighter.

In an embodiment, as shown in fig. 6, the first clamping structure 21 further includes a fixing pin 214, and the fixing pin 214 is connected to an end of the clamping surface 212 far from the guide surface 213 and is fixedly connected to the box 20. In the present embodiment, each of the clamping surfaces 212 is connected with a fixing leg 214, and two fixing legs 214 are fixed on the box 20 at the same time, such as by directly fixing with screws, so that the installation of the first clamping structure 21 is more stable and reliable.

In one embodiment, as shown in fig. 7, the cover 30 has a mounting area 32 with a circular arc structure, the mounting area 32 has a first mounting surface 321 facing the box 20, and the second clamping structure 31 is fixed on the first mounting surface 321. Specifically, taking the case cover 30 as a rectangular structure as an example, in order to make the overall case structure 10 more beautiful, two opposite sides or even the periphery of the case cover 30 are provided with arc surfaces, and the periphery of the case cover 30 needs to be connected with the case body 20, and the region with the arc surface is the installation region 32.

It will be appreciated that the installation of screws on a circular arc is inconvenient and affects the appearance of the entire cabinet structure 10. Therefore, by mounting the second clamping structure 31 on the first mounting surface 321 of the mounting area 32 facing the box 20, the box cover 30 can be mounted conveniently, and the second clamping structure 31 can be hidden without affecting the appearance of the whole box structure 10.

In addition, in this embodiment, the number of the second clamping structures 31 can be set according to the length of the side edge of the box cover 30 to be connected. For example, when the length of the side edge of the case cover 30 to be connected is small, and only one second clamping structure 31 needs to be arranged to clamp the case cover 30 stably on the case body 20, only one second clamping structure 31 can be arranged, and the structure of the whole case body is simplified on the basis of ensuring the stable installation of the case cover. And the number of the first clamping structures 21 is matched with that of the second clamping structures 31.

When the length of the side edge of the case cover 30 to be connected is large, a plurality of second clamping structures 31 can be arranged for ensuring stable installation of the case cover 30, for example, two, four, six, etc. are arranged, and the plurality of second clamping structures 31 can be arranged at equal intervals, so that the stress of the case cover 30 is more balanced and stable. And the number of the first clamping structures 21 is matched with that of the second clamping structures 31.

Of course, the number of the first clamping structures 21 and the second clamping structures 31 can be set according to the area of the positions to be connected on the box cover 30, and the number can be specifically set according to actual conditions, and only the box cover 30 can be conveniently and stably installed on the box body 20.

It should be noted that, when the first mounting surface 321 is also an arc surface, the connecting element 314 of the second clamping structure 31 may also have an arc structure to match with the first mounting surface 321, so as to ensure the stability of the second mounting structure during mounting.

In an embodiment, as shown in fig. 7, the box 20 has a second mounting surface 22, the second mounting surface 22 is located at a box opening of the box 20 and faces the box cover 30 along an opening direction of the box opening, and the first clamping structure 21 is fixed on the second mounting surface 22. In the present embodiment, the opening direction of the box opening is upward, for example, because the second mounting surface 22 is directly horizontally upward, and thus the box cover 30 can be mounted and dismounted only by moving in the up-and-down direction. Compare in installing the structure on the perpendicular with first joint structure 21, this scheme does not need case lid 30 to take place certain deformation earlier when on box 20 with case lid 30 joint to case lid 30 can not take place to warp at the joint in-process yet, has guaranteed the structural stability and the life of case lid 30 itself.

In an embodiment, as shown in fig. 7, a stop ring 23 is further disposed at the box opening of the box body 20, and the stop ring 23 is located at a side of the first clamping structure 21 close to the box opening and surrounds the box opening of the box body 20. It can be understood that, because the cover 30 and the case 20 are clamped by the first clamping structure 21 and the second clamping structure 31, the clamping position and the adjacent two clamping positions are inevitably separated from each other. Therefore, after the baffle ring 23 is arranged to surround the box opening of the box body 20, the box cover 30 can cover the box body 20, the sealing performance of the whole box body structure 10 can be better, and dust, debris and the like can be prevented from falling into the box body 20.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A tank structure, comprising:

the box body is provided with a first clamping structure; and the number of the first and second groups,

the box cover is provided with a second clamping structure correspondingly clamped with the first clamping structure so as to enable the box cover to be clamped and installed on the box body;

first joint structure with one of them of second joint structure includes the joint groove and locates the chucking structure of joint inslot, another inserts the joint inslot, and with chucking structure elasticity joint.

2. The box structure of claim 1, wherein the second clamping structure comprises the clamping groove and the clamping structure, and the clamping structure comprises a spring plate;

the first clamping structure comprises a clamping connector, the clamping connector is provided with a clamping surface corresponding to the elastic sheet, and the clamping surface inclines towards one side where the elastic sheet is located and corresponds to the clamping surface in the direction away from the box body.

3. The box structure of claim 2, wherein the inner wall surface of the elastic piece and the clamping surface are tightly attached to each other.

4. The box structure of claim 3, wherein a plurality of spring plates are provided, and the plurality of spring plates are connected to the notches of the clamping grooves and clamped with the clamping connectors together.

5. The box structure of claim 4, wherein the first clamping structure further comprises a connecting piece, and the connecting piece is fixed on the box cover and provided with the clamping groove.

6. The cabinet structure as claimed in claim 2, wherein the card connector further has a guide surface connected to an end of the card-connecting surface remote from the cabinet, and the guide surface is inclined gradually to a side away from the card-connecting surface in a direction away from the cabinet.

7. The cabinet structure as claimed in claim 6, wherein the latch is formed by bending an elastic sheet and has two opposite guide surfaces and two opposite latch surfaces;

the elastic pieces are two and are respectively abutted against the two clamping surfaces in a one-to-one correspondence mode.

8. The box structure of claim 7, wherein the first clamping structure further comprises a fixing pin connected to an end of the clamping surface away from the guide surface and fixedly connected to the box.

9. The box structure according to any one of claims 1 to 8, wherein the box cover has a mounting area in a circular arc structure, the mounting area has a first mounting surface facing the box, and the second clamping structure is fixed on the first mounting surface;

and/or, a second mounting surface is arranged on the box body, the second mounting surface is positioned at the box opening of the box body and faces towards the box cover along the opening direction of the box opening, and the first clamping structure is fixed on the second mounting surface.

10. The box structure of claim 9, wherein a stop ring is further disposed at the box opening of the box, and the stop ring is located on a side of the first clamping structure close to the box opening and surrounds the box opening of the box.