Protection structure

Abstract

The invention provides a protection structure, which is used for protecting a connector part of a power utilization structure, and comprises a shell which is provided with an accommodating space for the connector part and is provided with a via hole for the connector part to penetrate through; the sealing air bag is arranged on the inner surface of the shell, the sealing air bag has an inflation state and a release state, when the sealing air bag is in the inflation state, the sealing air bag is sealed between the outer surface of the connector part and the inner surface of the shell and blocks the via hole, and when the sealing air bag is in the release state, the sealing air bag and the connector part are arranged in a spaced mode; and the triggering structure is movably arranged on the shell, and when the triggering structure moves, the sealing air bag is switched from the release state to the inflation state. According to the technical scheme, the problem that the joint part of the PT is easily influenced by water vapor in the prior art can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to a protection structure. Background Art

[0002] At present, in the 10kV power distribution line, both the main line and the branch line switches are equipped with automatic controllers, the purpose of which is to isolate the fault in time and disconnect the fault current to protect the equipment safety. The basis for the automatic controller to judge whether there is a fault is generated by the pole switch PT (voltage transformer). When the information transmitted by the PT is abnormal, the controller will automatically disconnect the switch.

[0003] It can be seen that the function of PT is crucial to the function of automation controller. PT usually has a connector part connected to other electrical equipment. During the storage and transportation of PT, the connector part of PT is often affected by water vapor. If the wet connector part is connected to the controller, the controller may detect abnormal current without fault, resulting in false start, which will cause the controller to mistakenly disconnect the pole switch and cause the line to be powered off. Summary of the invention

[0004] The main purpose of the present invention is to provide a protective structure to solve the problem in the related art that the joint part of the PT is easily affected by water vapor.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a protective structure for protecting the joint part of an electrical structure, the protective structure comprising: a shell having an accommodating space for accommodating the joint part, the shell being provided with a through hole for the joint part to penetrate; a sealing airbag arranged on the inner surface of the shell, the sealing airbag having an inflated state and a released state, when the sealing airbag is in the inflated state, the sealing airbag is sealed between the outer surface of the joint part and the inner surface of the shell and blocks the through hole, when the sealing airbag is in the released state, the sealing airbag is spaced apart from the joint part; a trigger structure, movably arranged on the shell, the trigger structure moves so that the sealing airbag switches from the released state to the inflated state.

[0006] Furthermore, the housing includes a first shell and a second shell that can be covered, a receiving space is formed between the first shell and the second shell, and a through hole is arranged on the first shell and / or the second shell, and the trigger structure is driven to move when the first shell and the second shell are covered.

[0007] Furthermore, the first shell has an installation cavity, and the protective structure also includes a trigger airbag arranged in the installation cavity. The trigger airbag and the sealing airbag are connected to each other. When the trigger structure moves, it squeezes the trigger airbag so that the gas in the trigger airbag flows into the sealing airbag, thereby switching the sealing airbag from a released state to an inflated state.

[0008] Furthermore, the trigger structure includes a trigger slide, which includes a trigger end located outside the first shell and an abutment top end extending into the installation cavity. When the first shell and the second shell are covered, the trigger end is squeezed and drives the trigger slide to move toward the installation cavity, so that the abutment top end squeezes and triggers the airbag.

[0009] Furthermore, the trigger slide includes a first plate and a second plate nested along the moving direction of the trigger slide, the first plate has a sliding groove, the second plate is movably arranged in the sliding groove, and the trigger slide includes an extended state and a retracted state. When the first shell and the second shell are covered, the trigger slide is in the retracted state, and when the first shell and the second shell are opened, the trigger slide is in the extended state.

[0010] Furthermore, the trigger slide also includes a reset member arranged in the sliding groove so that the trigger slide is kept in the extended state.

[0011] Furthermore, the trigger slide plate also includes an anti-slip block arranged on the second plate and located in the sliding groove, and the size of the anti-slip block is larger than the size of the notch of the sliding groove to prevent the second plate from separating from the first plate.

[0012] Further, a trigger plate is provided at the trigger end, and the trigger plate is set at an angle with the trigger slide; and / or a top plate is provided at the top end, and the top plate is set at an angle with the trigger slide, and the top plate cooperates with the installation cavity guide.

[0013] Furthermore, the outer shell is a cylindrical structure, and a plurality of compression folds are arranged on the surface of the triggering airbag. The plurality of compression folds extend along the axial direction of the outer shell and are arranged at intervals along the circumferential direction of the outer shell.

[0014] Furthermore, the protective structure also includes a card block and an elastic card plate, the elastic card plate is provided with a card slot, the card block can be inserted into the card slot and engaged with the card slot, one of the card block and the elastic card plate is arranged on the first shell, and the other of the card block and the elastic card plate is arranged on the second shell.

[0015] According to the technical solution of the present invention, the housing has a storage space for accommodating the joint part, the housing is used to protect the joint part, and a through hole is provided on the housing for the joint part to penetrate; the sealing airbag is provided on the inner surface of the housing, and the sealing airbag has an inflated state and a released state. When the joint part needs to be penetrated into the housing from the through hole, the sealing airbag is first placed in the released state, and the sealing airbag is spaced from the joint part, so that the joint part can enter the storage space more easily. The trigger structure is movably provided on the housing, and the sealing airbag is switched from the released state to the inflated state when the trigger structure moves. When the joint part is located at a suitable position in the storage space, the trigger structure is moved, so that the sealing airbag is switched from the released state to the inflated state. At this time, the sealing airbag is sealed between the outer surface of the joint part and the inner surface of the housing and blocks the through hole, so that the water vapor outside the housing is not easy to enter the storage space through the through hole, so that the joint part is better protected, and the joint part is prevented from being affected by water vapor, thereby ensuring the realization of the function of the power structure. Therefore, the technical solution of the present application can effectively solve the problem that the joint part of the PT in the related art is easily affected by water vapor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of a three-dimensional structure of an embodiment of a protection structure according to the present invention is shown, wherein a first shell and a second shell are covered;

[0018] Figure 2 Shows Figure 1 An enlarged schematic diagram of the protection structure at A;

[0019] Figure 3 Shows Figure 1 A three-dimensional structural schematic diagram of a protective structure, wherein the first shell and the second shell are opened;

[0020] Figure 4 Shows Figure 3 An enlarged schematic diagram of the protection structure at B;

[0021] Figure 5 Shows Figure 1 A schematic cross-sectional view of a protective structure;

[0022] Figure 6 Shows Figure 5 An enlarged schematic diagram of the protection structure at C;

[0023] Figure 7 Shows Figure 1A cross-sectional schematic diagram of a triggering structure of a protective structure;

[0024] Figure 8 Shows Figure 7 An enlarged schematic diagram of a protective structure at D;

[0025] Fig. 9 Shows Figure 1 Schematic diagram of the three-dimensional structure of the partial structure of the protective structure.

[0026] The above drawings include the following reference numerals:

[0027] 1. Connector part;

[0028] 10. housing; 11. via hole; 12. first housing; 121. mounting cavity; 13. second housing;

[0029] 20. Sealed airbag;

[0030] 30. Trigger structure; 31. Trigger slide plate; 311. Trigger end; 312. Abutment top; 313. First plate; 3131. Sliding groove; 314. Second plate; 315. Reset member; 316. Anti-slip block; 317. Trigger plate; 318. Abutment top plate;

[0031] 40. Trigger the airbag; 41. Compress the folds;

[0032] 51. Card block; 52. Elastic card plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0036] like Figure 1 as well as Figures 3 to 6 As shown, the present application provides a protection structure for protecting the joint part 1 of the electrical structure. An embodiment of the protection structure of the present application includes: a shell 10, a sealing airbag 20, and a trigger structure 30; the shell 10 has a accommodating space for the joint part 1, and the shell 10 is provided with a through hole 11 for the joint part 1 to penetrate; the sealing airbag 20 is arranged on the inner surface of the shell 10, and the sealing airbag 20 has an inflated state and a released state. When the sealing airbag 20 is in the inflated state, the sealing airbag 20 is sealed between the outer surface of the joint part 1 and the inner surface of the shell 10 and blocks the through hole 11. When the sealing airbag 20 is in the released state, the sealing airbag 20 is spaced apart from the joint part 1; the trigger structure 30 is movably arranged on the shell 10, and when the trigger structure 30 moves, the sealing airbag 20 switches from the released state to the inflated state.

[0037] According to the technical solution of the present embodiment, the housing 10 has a storage space for accommodating the joint part 1. The housing 10 is used to protect the joint part 1. The housing 10 is provided with a through hole 11 for the joint part 1 to penetrate. The sealing airbag 20 is provided on the inner surface of the housing 10. The sealing airbag 20 has an inflated state and a released state. When the joint part 1 needs to be penetrated into the housing 10 through the through hole 11, the sealing airbag 20 is first placed in the released state. The sealing airbag 20 is spaced apart from the joint part 1, so that the joint part 1 can be easily entered into the storage space. The trigger structure 30 is movably provided on the housing 10. When the trigger structure 30 moves, the sealing airbag 20 switches from the release state to the inflated state. When the joint part 1 is located at a suitable position in the accommodation space, the trigger structure 30 moves, so that the sealing airbag 20 switches from the release state to the inflated state. At this time, the sealing airbag 20 is sealed between the outer surface of the joint part 1 and the inner surface of the shell 10 and blocks the via 11, thereby making it difficult for the water vapor outside the shell 10 to enter the accommodation space through the via 11, so that the joint part 1 is better protected and prevented from being affected by water vapor, thereby ensuring the realization of the function of the electrical structure. Therefore, the technical solution of this embodiment can effectively solve the problem that the joint part of the PT in the related art is easily affected by water vapor.

[0038] It should be noted that the connector part 1 includes a connector and a wiring, and the wiring and the connector are connected. When the connector part 1 is stably protected in the protective structure, the connector is completely located in the accommodating space, and the wiring is passed through the via 11. When the sealing airbag 20 is in an inflated state, the sealing airbag 20 is sealed between the outer surface of the wiring and the inner surface of the outer shell 10 and blocks the via 11. When the sealing airbag 20 is in a released state, the sealing airbag 20 is spaced apart from the wiring.

[0039] like Figure 1 , Figure 3 as well as Figure 5As shown, the housing 10 includes a first shell 12 and a second shell 13 that can be covered, a storage space is formed between the first shell 12 and the second shell 13, and a through hole 11 is arranged on the first shell 12 and / or the second shell 13. When the first shell 12 and the second shell 13 are covered, the trigger structure 30 is driven to move. Specifically, in this embodiment, there is a notch on each of the first shell 12 and the second shell 13. When the first shell 12 and the second shell 13 are covered, the two notches form the through hole 11. The arrangement of the first shell 12 and the second shell 13 facilitates the taking and placing of the joint part 1. When the first shell 12 and the second shell 13 are covered, the trigger structure 30 is driven to move. Such an arrangement facilitates the operation of the staff. When the joint part 1 is in a suitable position in the storage space, the staff only needs to cover the first shell 12 and the second shell 13, so as to realize the closing of the housing 10 and the switching of the sealed airbag 20 from the release state to the inflated state without requiring other operations.

[0040] like Figures 3 to 6 As shown, the first shell 12 has an installation cavity 121, and the protective structure also includes a trigger airbag 40 arranged in the installation cavity 121. The trigger airbag 40 and the sealing airbag 20 are connected. When the trigger structure 30 moves, it squeezes the trigger airbag 40 so that the gas in the trigger airbag 40 flows into the sealing airbag 20, thereby switching the sealing airbag 20 from a released state to an inflated state. Specifically, the installation cavity 121 is formed inside the physical structure of the first shell 12, and the trigger airbag 40 is arranged in the installation cavity 121. Such an arrangement can make the layout of the trigger airbag 40 more reasonable, and the inner wall of the installation cavity 121 can also play a certain limiting role on the trigger airbag 40. When the trigger structure 30 moves, the trigger structure 30 will squeeze the trigger airbag 40. Since the trigger airbag 40 and the sealing airbag 20 are connected, the gas in the trigger airbag 40 flows into the sealing airbag 20, thereby switching the sealing airbag 20 from a released state to an inflated state. In addition, in the present embodiment, a one-way valve sheet is provided at the communication port between the trigger airbag 40 and the sealing airbag 20, and the one-way valve sheet can make the sealing airbag 20 switch from a released state to an inflated state. The gas in the airbag 20 can flow freely into the trigger airbag 40, but the gas in the trigger airbag 40 needs to be subjected to a preset pressure in order to flow from the trigger airbag 40 to the sealed airbag 20. With this arrangement, after the protective structure is used up, for reuse, the staff can press the sealed airbag 20 by hand to make the gas in the sealed airbag 20 flow into the trigger airbag 40, thereby restoring the trigger structure 30 for next use. Moreover, when the trigger airbag 40 is not squeezed (that is, when the gas in the trigger airbag 40 is not subjected to the preset pressure), the gas in the trigger airbag 40 will not flow into the sealed airbag 20, thereby keeping the trigger structure 30 in a restored state (that is, a state of not being triggered).

[0041] like Figures 5 to 9 As shown, the trigger structure 30 includes a trigger slide 31, and the trigger slide 31 includes a trigger end 311 located outside the first shell 12 and an abutting top 312 extending into the installation cavity 121. When the first shell 12 and the second shell 13 are covered, the trigger end 311 is squeezed and drives the trigger slide 31 to move toward the installation cavity 121, so that the abutting top 312 squeezes the trigger airbag 40. Specifically, in this embodiment, the structures and associated components of the first shell 12 and the second shell 13 are similar, and are not repeated herein. This article mainly describes the first shell 12 and the associated components in detail. The second shell 13 is also provided with a trigger slide 31. When the first shell 12 and the second shell 13 are covered, the trigger slide 31 on the first shell 12 and the trigger slide 31 on the second shell 13 will squeeze each other (specifically, the trigger ends 311 squeeze each other) and will move, so as to achieve the squeezing of the trigger airbag 40 by the abutting top 312. The trigger slide 31 has the advantages of simple structure and reasonable layout.

[0042] like Figures 5 to 9 As shown, the trigger slide 31 includes a first plate 313 and a second plate 314 which are nested along the moving direction of the trigger slide 31, the first plate 313 has a sliding groove 3131, and the second plate 314 is movably arranged in the sliding groove 3131. The trigger slide 31 includes an extended state and a retracted state. When the first shell 12 and the second shell 13 are covered, the trigger slide 31 is in the retracted state, and when the first shell 12 and the second shell 13 are opened, the trigger slide 31 is in the extended state. Specifically, in the present embodiment, the end of the first plate 313 away from the mounting cavity 121 forms the trigger end 311 of the trigger slide 31, and the end of the second plate 314 close to the mounting cavity 121 forms the top end 312 of the trigger slide 31. The first plate 313 has a sliding groove 3131, and the second plate 314 is movably arranged in the sliding groove 3131, so that the trigger slide 31 has an extended state and a retracted state. The length of the trigger slide 31 in the extended state is greater than the length of the trigger slide 31 in the retracted state. It should be noted that the "extended state" and the "retracted state" both refer to the extreme state after the length of the trigger slide 31 is adjusted, rather than the process state. Compared with a long plate with a fixed length, the arrangement of the first plate 313 and the second plate 314 is more flexible.

[0043] like Figure 7 as well as Figure 8As shown, the trigger slide 31 further includes a reset member 315 disposed in the sliding groove 3131, so that the trigger slide 31 remains in the extended state. Specifically, the reset member 315 is a compression spring structure, one end of the reset member 315 is set against the inner side of the sliding groove 3131, and the other end of the reset member 315 is set against the second plate 314. The reset member 315 can apply a force toward the installation cavity 121 to the second plate 314 and a force away from the installation cavity 121 to the first plate 313, and the reset member 315 can keep the trigger slide 31 in the extended state.

[0044] like Figure 8 As shown, the trigger slide plate 31 further includes an anti-dropping block 316 disposed on the second plate 314 and located in the sliding groove 3131, and the size of the anti-dropping block 316 is larger than the size of the notch of the sliding groove 3131 to prevent the second plate 314 from being separated from the first plate 313. Specifically, the size of the anti-dropping block 316 is larger than the size of the notch of the sliding groove 3131, so that the anti-dropping block 316 will not be separated from the sliding groove 3131, thereby preventing the second plate 314 from being separated from the first plate 313.

[0045] like Figure 7 As shown, the trigger end 311 is provided with a trigger plate 317, and the trigger plate 317 is arranged at an angle with the trigger slide 31. Specifically, in this embodiment, the trigger plate 317 is arranged perpendicular to the trigger slide 31, and the arrangement of the trigger plate 317 can increase the contact area when the trigger end 311 is squeezed, so that the movement of the trigger slide 31 is smoother. The top end 312 is provided with a top plate 318, and the top plate 318 is arranged at an angle with the trigger slide 31, and the top plate 318 is guided and matched with the installation cavity 121. Specifically, there is a small gap between the top plate 318 and the inner wall of the installation cavity 121. When the top plate 318 squeezes the trigger airbag 40, the top plate 318 can prevent the trigger airbag 40 from deforming in the opposite direction of the movement direction of the top plate 318 through the small gap.

[0046] like Fig. 9 As shown, the housing 10 is a cylindrical structure, and a plurality of compression folds 41 are arranged on the surface of the trigger airbag 40. The plurality of compression folds 41 extend along the axial direction of the housing 10 and are arranged at intervals along the circumferential direction of the housing 10. Specifically, the arrangement of the compression folds 41 enables the trigger airbag 40 to deform in a preset direction, while avoiding irregular deformation thereof.

[0047] like Figure 1 as well as Figure 2As shown, the protection structure further includes a clamping block 51 and an elastic clamping plate 52, a clamping port is provided on the elastic clamping plate 52, the clamping block 51 can be clamped into the clamping port and engaged with the clamping port, one of the clamping block 51 and the elastic clamping plate 52 is provided on the first housing 12, and the other of the clamping block 51 and the elastic clamping plate 52 is provided on the second housing 13. Specifically, in such an arrangement, when the clamping block 51 and the clamping port are engaged with each other, a stable connection between the first housing 12 and the second housing 13 is ensured.

[0048] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A protective structure for protecting a joint portion (1) of an electrical structure, characterized in that: The protection structure comprises: A housing (10) having a receiving space for receiving the connector portion (1), and a through hole (11) for the connector portion (1) to pass through is provided on the housing (10); a sealing airbag (20) arranged on the inner surface of the outer shell (10), the sealing airbag (20) having an inflated state and a released state; when the sealing airbag (20) is in the inflated state, the sealing airbag (20) is sealed between the outer surface of the joint part (1) and the inner surface of the outer shell (10) and blocks the through hole (11); when the sealing airbag (20) is in the released state, the sealing airbag (20) is spaced apart from the joint part (1); A trigger structure (30) is movably arranged on the housing (10), and when the trigger structure (30) moves, the sealed airbag (20) is switched from the released state to the inflated state.

2. The protective structure according to claim 1, characterized in that: The housing (10) comprises a first shell (12) and a second shell (13) which can be covered, the accommodating space is formed between the first shell (12) and the second shell (13), the through hole (11) is arranged on the first shell (12) and / or the second shell (13), and the trigger structure (30) is driven to move when the first shell (12) and the second shell (13) are covered.

3. The protective structure according to claim 2, characterized in that: The first shell (12) has an installation cavity (121), and the protective structure also includes a trigger airbag (40) arranged in the installation cavity (121), and the trigger airbag (40) and the sealing airbag (20) are connected. When the trigger structure (30) moves, it squeezes the trigger airbag (40) so that the gas in the trigger airbag (40) flows into the sealing airbag (20), thereby switching the sealing airbag (20) from the released state to the inflated state.

4. The protective structure according to claim 3, characterized in that: The trigger structure (30) comprises a trigger slide plate (31), wherein the trigger slide plate (31) comprises a trigger end (311) located outside the first shell (12) and an abutting end (312) extending into the installation cavity (121); when the first shell (12) and the second shell (13) are covered, the trigger end (311) is squeezed and drives the trigger slide plate (31) to move toward the installation cavity (121), so that the abutting end (312) squeezes the trigger airbag (40).

5. The protective structure according to claim 4, characterized in that: The trigger slide (31) includes a first plate (313) and a second plate (314) which are nested along the moving direction of the trigger slide (31), the first plate (313) having a sliding groove (3131), the second plate (314) being movably arranged in the sliding groove (3131), the trigger slide (31) including an extended state and a retracted state, when the first shell (12) and the second shell (13) are covered, the trigger slide (31) is in the retracted state, when the first shell (12) and the second shell (13) are opened, the trigger slide (31) is in the extended state.

6. The protective structure according to claim 5, characterized in that: The trigger slide plate (31) further comprises a reset member (315) arranged in the sliding groove (3131) so as to keep the trigger slide plate (311) in the extended state.

7. The protective structure according to claim 5, characterized in that: The trigger slide plate (31) further comprises an anti-slip block (316) arranged on the second plate (314) and located in the sliding groove (3131), wherein the size of the anti-slip block (316) is larger than the size of the notch of the sliding groove (3131) to prevent the second plate (314) from separating from the first plate (313).

8. The protective structure according to any one of claims 4 to 7, characterized in that: The trigger end (311) is provided with a trigger plate (317), and the trigger plate (317) is arranged at an angle with the trigger slide plate (31); and / or, The abutting top end (312) is provided with an abutting plate (318), the abutting plate (318) and the triggering slide plate (31) are arranged at an angle, and the abutting plate (318) is guided and matched with the mounting cavity (121).

9. The protective structure according to any one of claims 3 to 7, characterized in that: The shell (10) is a cylindrical structure, and a plurality of compression folds (41) are arranged on the surface of the trigger airbag (40). The plurality of compression folds (41) extend along the axial direction of the shell (10) and are arranged at intervals along the circumferential direction of the shell (10).

10. The protective structure according to any one of claims 2 to 7, characterized in that: The protective structure further comprises a card block (51) and an elastic card plate (52), wherein the elastic card plate (52) is provided with a card slot, wherein the card block (51) can be inserted into the card slot and engage with the card slot, wherein one of the card block (51) and the elastic card plate (52) is arranged on the first shell (12), and the other of the card block (51) and the elastic card plate (52) is arranged on the second shell (13).

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