CN212332787U

CN212332787U - Protective structure

Info

Publication number: CN212332787U
Application number: CN202021237479.8U
Authority: CN
Inventors: 金学军; 秦鹰; 田连刚; 李德胜; 郑隽一; 张育铭
Original assignee: National Innovation Energy Automobile Intelligent Energy Equipment Innovation Center Jiangsu Co Ltd
Current assignee: Guochuang Mobile Energy Innovation Center Jiangsu Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-01-12
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a battery charging outfit technical field, concretely relates to protective structure, including drive module, the inclined to one side goods of furniture for display rather than for use and guide of going up and down, drive module sets up inside the base, go up and down the one end of the inclined to one side goods of furniture for display rather than for use with drive module's output is connected, the other end fixedly connected with apron of the inclined to one side goods of furniture for display rather than for use that goes up and down, the guide with the inclined to one side goods of furniture for display rather than for use makes through the direction cooperation apron rotary motion is one section. The utility model provides a pair of protective structure, occupation space is little and protection level is high, can effectively protect the influence that receives the electrical connector not receive dust, greasy dirt and sewage.

Description

Protective structure

Technical Field

The utility model relates to a battery charging outfit technical field, concretely relates to protective structure.

Background

The automatic chassis charging is a new development direction of automatic charging of new energy automobiles, has the advantages of small size, high efficiency, high maximum power and the like, is automatically charged, namely is charged from the bottom of an automobile, and is characterized in that a power receiving connector is installed on an on-vehicle unit of a vehicle chassis, and a power supply connector is installed on a moving structure of a ground unit.

The on-vehicle unit of receiving the electrical connector and installing in vehicle chassis for side or the rear of installing at the vehicle, the mouth that charges that is used for on the electrical connector butt joint with the power supply is stained with dust or greasy dirt more easily, and the condition soaked by sewage can also appear sometimes, leads to internal circuit to break down, and traditional receiving the protective cover plate that connects is open-type outward, and occupation space is big, and the leakproofness is not good, and the protecting effect is poor. In addition, the existing protection structure has no locking function on the power supply connector, and the power supply connector and the power receiving connector are likely to be separated from each other to cause charging interruption in the chassis charging process of the electric automobile.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem that the power receiving connector protective structure among the prior art protective effect is poor and occupation space is big, provided a protective structure, use this kind of protective structure can effectively protect the power receiving connector not receive the influence of dust, greasy dirt and sewage, protection level height and occupation space are little.

The technical scheme of the utility model:

a protective structure comprising:

the driving module is arranged inside the base;

one end of the lifting deflection swinging part is connected with the output end of the driving module, and the other end of the lifting deflection swinging part is fixedly connected with a cover plate;

the guide piece and the lifting deflection swinging piece are matched in a guiding mode, so that the cover plate continues to linearly move for a certain distance after the rotary motion of the cover plate is finished, and an interface on the base is sealed.

Furthermore, a guide groove is formed in the lifting deflection piece, a guide protrusion is arranged on the guide piece, the guide groove comprises a straight section guide groove and a spiral section guide groove, the straight section guide groove and the guide protrusion are matched to enable the cover plate to move linearly, and the spiral section guide groove and the guide protrusion are matched to enable the cover plate to move rotationally.

Further, the driving module includes:

a motor configured to be fixedly mounted;

the lead screw, the lead screw is in the lead screw rotates under the drive of motor, the lead screw with the one end of the inclined to one side goods of furniture for display rather than for use of going up and down is connected.

Further, the driving module further comprises:

one end of the gear shaft is connected with an output shaft of the motor, and the other end of the gear shaft is fixedly connected with a first bevel gear;

and the second bevel gear is meshed with the first bevel gear, the second bevel gear is rotatably arranged on the gear box, and the second bevel gear is fixedly connected with the screw rod.

Further, the cover plate locking device further comprises a driving assembly, and the driving assembly is used for driving the pushing block to lock the cover plate.

Furthermore, the pushing block is provided with a locking hook, the cover plate is correspondingly provided with a locking buckle, and the pushing block presses the locking buckle through the locking hook to lock the cover plate.

Further, the drive assembly includes:

the screw rod motor is fixed on the fixed block;

and the screw rod motor is matched with a screw rod nut fixed in the pushing and pressing block so as to drive the pushing and pressing block to move.

Furthermore, a guide shaft is further fixed on the fixing block, and a guide bearing matched with the guide shaft is arranged on the pushing block.

Furthermore, protective structure still includes the spacing block, the both ends of spacing block are fixed respectively on the bottom plate and the shell of base, just be equipped with on the spacing block and hold bulldoze the opening that the piece removed.

Further, the middle part of spacing block is equipped with sealed the pad, the both ends of spacing block all are equipped with the sealing strip, sealed pad is used for sealing the opening, the sealing strip is used for sealing spacing block and bottom plate, spacing block and shell.

After the technical scheme is adopted, the utility model provides a pair of protective structure compares with prior art, has following beneficial effect:

(1) the cover plate of the utility model is opened in a rotating mode, does not occupy too much space at the bottom of the vehicle, can be realized on the vehicle with a lower chassis, and simultaneously, the cover plate is arranged to do linear motion after rotating motion so that the sealing element on the cover plate is better contacted with the shell, thereby avoiding the damage caused by the friction of the sealing element due to the direct rotation of the cover plate, and meanwhile, the linear motion of the cover plate can effectively compress the sealing element to seal the interface, so that the sealing effect is better;

(2) the utility model is evenly provided with three driving components and a pushing block in the circumferential direction of the bottom plate, when the cover plate is closed, the pushing block moves inwards, the cover plate is further locked through the matching of the lock hook and the lock catch on the cover plate, the cover plate is prevented from loosening, and the sealing reliability is enhanced;

(3) the utility model drives the pushing block to compress the power supply connector through the driving component, thereby preventing the power supply connector and the power receiving connector from falling off in the charging process and further preventing the charging from being interrupted;

(4) the utility model discloses a be fixed with the spacing block between bottom plate and the shell to seal through the sealing strip, be equipped with sealed the pad between spacing block and the bulldozing block, the sealed this opening of gasket seal is compressed tightly during bulldozing block locking, and bottom plate, shell and spacing block just form to full seal structure like this, have stopped the entering of steam and dust, and the protection level can reach IP67, has effectively protected drive module and the drive assembly in the shell.

Drawings

Fig. 1 is an overall schematic view of a protective structure according to a first embodiment of the present invention;

fig. 2 is a schematic view of a protective structure according to a first embodiment of the present invention when the protective structure is closed;

fig. 3 is a schematic view of the protective structure according to the first embodiment of the present invention when the cover is opened;

fig. 4 is a schematic view of an internal structure of a protection structure according to a first embodiment of the present invention at a first viewing angle;

fig. 5 is a schematic structural diagram of a driving module according to a first embodiment of the present invention;

fig. 6 is a schematic structural view of a lifting deflection swinging member according to a first embodiment of the present invention;

fig. 7 is a schematic structural view of a guide according to a first embodiment of the present invention;

fig. 8 is a schematic view of an internal structure of a protection structure according to a first embodiment of the present invention at a second viewing angle;

FIG. 9 is a schematic structural view of a push block according to a first embodiment of the present invention;

fig. 10 is a schematic structural diagram of a cover plate according to a first embodiment of the present invention;

fig. 11 is a schematic structural diagram of a spacer according to a first embodiment of the present invention.

Wherein the content of the first and second substances,

the sealing device comprises a base 1, a bottom plate 11, a shell 12, a port 121, a cover plate 13, a lock catch 131, a sealing element 14, a sealing ring 15, an isolation block 16, a through hole 17, a sealing gasket 18 and a sealing strip 19;

the lifting deflection swing part 2, the guide groove 21, the straight section guide groove 211, the spiral section guide groove 212 and the photoelectric detection sheet 22;

the guide 3, the guide projection 31;

a motor 41, a screw rod 42, a gear shaft 43, a first bevel gear 44, a second bevel gear 45, a gear box 46, a bearing 47, a coupler 48 and a fixed seat 49;

a first photosensor 51, a second photosensor 52, a first photosensor 53, a second photosensor 54;

the lead screw motor 61, the fixed block 62, the guide shaft 63, the pushing block 64, the locking hook 641, the lead screw nut 642, the guide bearing 643, the photoelectric sensing piece 644 and the pressing surface 645;

a power receiving connector 71 and a power feeding connector 72.

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.

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.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated 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 … …" can include both an orientation 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 first embodiment is as follows:

as shown in fig. 1-4, the protection structure of this embodiment includes a base 1 and a cover plate 13, the base 1 includes a bottom plate 11 and a housing 12, a power receiving connector 71 is fixedly mounted on the bottom plate 11, an interface 121 for receiving and supplying power connector 72 and power receiving connector 71 to be docked is disposed on the housing 12, a sealing ring 15 is disposed between the bottom plate 11 and the housing 12, the cover plate 13 is provided with a sealing groove, and a sealing member 14 is disposed in the sealing groove and used for sealing the interface 121 on the housing 12.

Further, as shown in fig. 4-5, a driving module is fixed on the bottom plate 11 of this embodiment, an output end of the driving module is connected to the lifting deflection swinging portion 2, the other end of the lifting deflection swinging portion 2 is fixedly connected to the cover plate 13, the driving module drives the cover plate 13 to rotate through the lifting deflection swinging portion 2, so as to open and close the cover plate 13, and of course, the lifting deflection swinging portion 2 and the cover plate 13 can be integrally formed; the protective structure of this embodiment is further fixedly mounted with a guide 3, the guide 3 and the lifting deflection swing part 2 cooperate with each other through guiding to make the lifting deflection swing part 2 and the cover plate 13 continue to move linearly for a certain distance after the rotation is finished so as to compress the interface 121, specifically, as shown in fig. 6-7, the lifting deflection swing part 2 is provided with a guide groove 21, the guide 3 is provided with a guide protrusion 31 cooperating with the guide groove 21, the guide groove 21 comprises a straight guide groove 211 and a spiral guide groove 212, wherein the straight guide groove 211 cooperates with the guide protrusion 31 to make the lifting deflection swing part 2 and the cover plate 13 move linearly, the spiral guide groove 212 cooperates with the guide protrusion 31 to make the lifting deflection swing part 2 and the cover plate 13 rotate, of course, the lifting deflection swing part 2 can also be provided with a guide protrusion, and the guide 3 is provided with a corresponding straight guide groove and an arc guide groove.

Further, as shown in fig. 4-5, the driving module includes a motor 41 and a lead screw 42, the motor 41 is fixed on the bottom plate 11 through a fixing seat 49, the lead screw 42 is in threaded connection with one end of the lifting deflection swing part 2, the motor 41 can be vertically installed, that is, an output shaft of the motor 41 is in a vertical direction, and the lead screw 42 is driven to rotate through a coupling 48; in an initial state, the cover plate 13 is closed, when a vehicle needs to be charged, the controller controls the motor 41 to be started, the motor 41 drives the screw rod 42 to rotate, at the moment, the straight guide groove 211 on the lifting deflection swinging part 2 is matched with the guide protrusion 31 on the guide part 3, so that the lifting deflection swinging part 2 and the cover plate 13 do not rotate along with the screw rod 42, but do a section of linear motion outwards away from the bottom plate 11 until the guide protrusion 31 moves to the bottom of the straight guide groove 211, and then the spiral guide groove 212 on the lifting deflection swinging part 2 is matched with the guide protrusion 31, so that the lifting deflection swinging part 2 and the cover plate 13 can rotate along with the screw rod 42, and the cover plate 13 is opened; after the vehicle is charged, the controller controls the motor 41 to rotate reversely, the spiral section guide groove 212 and the guide protrusion 31 are matched to enable the lifting deflection swinging part 2 and the cover plate 13 to rotate reversely, then the straight section guide groove 211 and the guide protrusion 31 are matched to enable the lifting deflection swinging part 2 and the cover plate 13 to move inwards towards the bottom plate 11 in a linear mode, the cover plate 13 is closed and seals the interface 121, the angle of the cover plate 13 in the embodiment is preferably 180 degrees, and other angles can be set according to needs.

It can be known from the above, the apron 13 of this embodiment adopts the rotation mode to open, does not occupy the space of too much vehicle bottom, also can realize on the lower vehicle in chassis, set up apron 13 and carry out linear motion again after rotary motion and make sealing member 14 and shell 12 on the apron 13 contact better, avoided apron 13 direct rotation to lead to sealing member 14 friction to produce the damage, the linear motion of apron 13 can further compress sealing member 14 with sealed interface 121 simultaneously for whole sealed effect is better.

Preferably, the motor 41 of the present embodiment can be installed transversely, as shown in fig. 4-5, the driving module further includes a gear shaft 43, a first bevel gear 44 and a second bevel gear 45, one end of the gear shaft 43 is connected to the output shaft of the motor 41 through a coupling 48, the other end of the gear shaft 43 is fixedly connected to the first bevel gear 44, the middle portion of the gear shaft 43 is rotatably installed on a gear box 46 through a bearing 47, the guide member 3 is fixedly installed on the gear box, the first bevel gear 44 is engaged with the second bevel gear 45, the second bevel gear 45 is rotatably installed on the gear box 46 through another bearing, and the second bevel gear 45 is fixedly connected to the screw rod 42, the second bevel gear 45 of the present embodiment has a larger size than the first bevel gear 44, so that the torque output to the screw rod 42 is increased, the speed is reduced, the, longitudinal space within the base 1 is saved.

Further, in this embodiment, a detection module is further used to detect whether the cover plate 13 is in place, the detection module is not limited to a photoelectric sensor, specifically, as shown in fig. 4, a first photoelectric sensor 51 and a second photoelectric sensor 52 are respectively disposed on two sides of the lifting deflection swing part 2, a photoelectric detection piece 22 is disposed on the lifting deflection swing part 2, during the rotation opening process of the cover plate 13, the photoelectric detection piece 22 makes linear motion and then rotational motion along with the cover plate 13, until the photoelectric detection piece 22 moves to the sensing position of the first photoelectric sensor 51, the controller controls the driving module to stop according to the feedback signal of the first photoelectric sensor 51; in the inward closing process of the cover plate 13, when the photoelectric detection sheet 22 rotates along with the lifting deflection swing part 2 and then moves linearly to the sensing position of the second photoelectric sensor 52, the controller controls the driving module to stop according to the feedback signal of the second photoelectric sensor 52, it should be noted that, in this embodiment, the first photoelectric sensor 51 and the second photoelectric sensor 52 have a certain height difference, and the height difference is the distance of the linear movement of the cover plate 13.

Further, the protection structure of the present embodiment further includes a driving assembly and a pushing block 64, after the cover plate 13 is closed, the driving assembly drives the pushing block 64 to lock the cover plate 13, specifically, as shown in fig. 4 and 9, the driving assembly includes a lead screw motor 61 and a fixing block 62, the lead screw motor 61 is fixed on the bottom plate 11 through the fixing block 62, an output shaft of the lead screw motor 61 is connected with a lead screw nut 642 fixed in the pushing block 64, and of course, a threaded hole matched with the lead screw motor 61 can be directly formed in the pushing block 64, so that the lead screw motor 61 can drive the pushing block 64 to move to lock the cover plate 13.

Preferably, as shown in fig. 8-10, the fixed block 62 is further fixed with a guide shaft 63, the pushing block 64 is provided with a guide bearing 643 cooperating with the guide shaft 63, the pushing block 64 is movable along the guide shaft 63, meanwhile, the pushing block 64 is provided with a locking hook 641, the cover plate 13 is correspondingly provided with a locking buckle 131, when the pushing block 64 locks the cover plate 13, the locking buckle 131 is pressed by the locking hook 641 to prevent the cover plate 13 from loosening, in this embodiment, by uniformly providing three driving assemblies and the pushing block 64 in the circumferential direction, when the cover plate 13 is closed, the cover plate 13 is further locked, the cover plate 13 is prevented from loosening, and the reliability of sealing is enhanced.

Further, in this embodiment, a detection component is further used to detect the position of the pushing block 64, the detection component may be selected but not limited to a photoelectric sensor, specifically, as shown in fig. 4, the two sides of the pushing block 64 are fixedly connected with a photoelectric sensing sheet 644, the two sides of the fixed block 62 are also correspondingly and fixedly installed with a first photoelectric sensor 53 and a second photoelectric sensor 54, and the two sides of the fixed block 62 are both provided with an avoidance port for accommodating movement of the photoelectric sensing sheet 644, when the cover plate 13 is closed, the controller controls the driving component to drive the pushing block 64 to move inwards towards the interface 121 until the photoelectric sensing sheet 644 on one side of the fixed block 62 moves to the detection position of the first photoelectric sensor 53, the controller controls the driving component to stop according to a feedback signal of the first photoelectric sensor 53, and at this time, the pushing block 64 locks the cover plate 13; when the cover 13 needs to be opened, the controller first controls the driving assembly to drive the pushing block 64 to move outward away from the interface 121 until the photoelectric sensing piece 644 on the other side of the fixing block 62 moves to the detection position of the second photoelectric sensor 54, the controller controls the driving assembly to stop according to the feedback signal of the second photoelectric sensor 54, the pushing block 64 resets, and at this time, the opening of the cover 13 can be continued.

The embodiment is further provided with an isolation block 16 for sealing the protection structure, specifically, as shown in fig. 4, fig. 8 and fig. 11, two ends of the isolation block 16 are respectively fixed on the bottom plate 11 and the housing 12, and the two ends are both sealed by a sealing strip 19, meanwhile, the isolation block 16 is provided with a through opening 17 for allowing the pushing block 64 to pass through, and the isolation block 16 is provided with a sealing gasket 18, the pushing block 64 presses the sealing gasket 18 to seal the through opening 17 while locking the power supply connector 72, at this time, the protection structure of the embodiment is formed into a full-sealing structure, the protection level can reach IP67, entry of water vapor and dust is prevented, and the drive module and the drive assembly in the housing 12 are effectively protected.

It can be known from the above-mentioned content that this embodiment provides a protective structure, occupation space is little, and protection level is high, can effectively protect receiving the influence that electric joint does not receive dust, greasy dirt and sewage.

Example two:

in the charging process, the driving assembly drives the pushing block 64 to press the power supply connector 72, so that the power supply connector 72 and the power receiving connector 71 are prevented from falling off in the charging process, and then charging is interrupted.

The working process of the embodiment is as follows:

in an initial state, that is, when the vehicle is not charged, the cover 13 is closed, and the pushing block 64 locks the cover 13 through the locking hook 641; when the vehicle needs to be charged, the controller controls the driving assembly to drive the pushing block 64 to move outwards until the photoelectric sensing piece on the pushing block 64 triggers the second photoelectric sensor 54, at this time, the cover plate 13 can be opened, the controller controls the driving module to drive the cover plate 13 to move outwards for a certain distance, then the cover plate 13 rotates for a certain angle, preferably 180 degrees, until the photoelectric sensing piece on the lifting deflection part 2 triggers the first photoelectric sensor 51, the driving module stops, and at this time, the cover plate 13 is completely opened; then the power supply connector 72 is butted with the power receiving connector 71, and after the butting is in place, the controller controls the driving assembly to drive the pushing block 64 to move inwards towards the power supply connector 72 until the photoelectric sensing piece triggers the first photoelectric sensor 53, and at the moment, the pushing block locks the power supply connector 72; after the vehicle is charged, the pushing block 64 moves outwards away from the power supply connector 72 to reset, at this time, the power supply connector 72 is separated from the power receiving connector 71, the cover plate 13 rotates for 180 degrees in the opposite direction and then moves inwards until the second photoelectric sensor 52 is triggered, at this time, the pushing block 64 moves inwards until the first photoelectric sensor 53 is triggered, and the cover plate 13 is locked.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. A protective structure, comprising:

the driving module is arranged inside the base (1);

one end of the lifting deflection swinging part (2) is connected with the output end of the driving module, and the other end of the lifting deflection swinging part (2) is fixedly connected with a cover plate (13);

the guide piece (3) and the lifting deflection swinging piece (2) are matched in a guiding mode, so that the cover plate (13) continues to move linearly for a certain distance after the rotary motion is finished so as to seal the interface (121) on the base (1).

2. A protective structure according to claim 1, wherein the lifting/lowering swing part (2) is provided with a guide groove (21), the guide member (3) is provided with a guide protrusion (31), the guide groove (21) comprises a straight guide groove (211) and a spiral guide groove (212), the straight guide groove (211) and the guide protrusion (31) cooperate to make the cover plate (13) move linearly, and the spiral guide groove (212) and the guide protrusion (31) cooperate to make the cover plate (13) move rotationally.

3. A protective structure according to claim 1, wherein said drive module comprises:

a motor (41), the motor (41) configured to be fixedly mounted;

the lead screw (42), lead screw (42) are in motor (41) drive down rotates, lead screw (42) with the one end of the inclined to one side goods of furniture for display rather than for use (2) of going up and down is connected.

4. A protective structure according to claim 3, wherein said drive module further comprises:

one end of the gear shaft (43) is connected with an output shaft of the motor (41), and the other end of the gear shaft (43) is fixedly connected with a first bevel gear (44);

the second bevel gear (45) is meshed with the first bevel gear (44), the second bevel gear (45) is rotatably mounted on a gear box (46), and the second bevel gear (45) is fixedly connected with the screw rod (42).

5. A guard structure according to claim 1, further comprising an actuating assembly for actuating a pusher block (64) to lock the cover plate (13).

6. A guard structure according to claim 5, characterized in that said pushing block (64) has a locking hook (641), said cover plate (13) has a corresponding locking catch (131), and said pushing block (64) presses said locking catch (131) through said locking hook (641) to lock said cover plate (13).

7. A shelter structure as claimed in claim 5, wherein the drive assembly comprises:

the screw rod motor (61) is fixed on the fixed block (62);

and the screw rod motor (61), the screw rod motor (61) is matched and fixed with a screw rod nut (642) in the pushing block (64) to drive the pushing block (64) to move.

8. A shelter structure as claimed in claim 7, characterized in that said fixed block (62) is further fixed with a guide shaft (63), said pushing block (64) being provided with a guide bearing (643) cooperating with said guide shaft (63).

9. A protective structure according to claim 5, characterized in that it further comprises a spacer block (16), the two ends of the spacer block (16) are respectively fixed to the bottom plate (11) and the outer shell (12) of the base (1), and the spacer block (16) is provided with a through hole (17) for allowing the pushing block (64) to move.

10. A protective structure according to claim 9, characterised in that a sealing gasket (18) is arranged in the middle of the spacer block (16), sealing strips (19) are arranged at both ends of the spacer block (16), the sealing gasket (18) is used for sealing the through opening (17), and the sealing strips (19) are used for sealing the spacer block (16) with the bottom plate (11), the spacer block (16) with the housing (12).