Toy water ball
By adding protrusions to the shell of the toy water balloon, causing the inner side to deform and crack first, the problem of insufficient water splashing in existing toy water balloons is solved, thus improving the gaming experience.
Patent Information
- Application Number
- CN202422314137.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-09-20
AI Technical Summary
When existing toy water balloons hit players, the water is difficult to splash effectively onto the players, resulting in a poor user experience.
The design of the toy water balloon features protrusions on its first and second shells. These protrusions deform inwards to crack first, increasing the amount of water splashed. Furthermore, the protrusions are positioned close to the player to improve the splashing effect.
By incorporating a raised structure, the amount of water splashed onto the player when the toy water balloon hits them is increased, significantly improving the user experience.
Smart Images
Figure CN223555499U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of toys, especially a toy water ball. BACKGROUND
[0002] In the past, balloons are usually used as water carriers when playing water fights. Since balloons cannot be reused and have poor environmental friendliness, researchers have developed a toy water ball that can be recycled. This toy water ball includes two housings that can enclose a water storage cavity. When the toy water ball hits a player, it will be forced to separate, causing the hit player to be drenched with water.
[0003] The existing toy water ball has the disadvantage that when the toy water ball hits a player, only a small amount of water may splash on the player, resulting in a poor user experience. Specifically, referring to Figure 1 , if the A position of the toy water ball hits the player, the A position of the toy water ball will be deformed inwardly under pressure. At this time, the B position and the C position of the toy water ball will break first, and the water in the water storage cavity will leak out from the B position and the C position. Since the A position in contact with the player is too far from the B position and the C position, and the orientation of the B position and the C position is at a relatively large angle to the direction in which the toy water ball hits the player, the water leaking from the B position and the C position is not easy to splash on the player, resulting in a poor user experience for the player. SUMMARY
[0004] The technical problem to be solved by the embodiments of the utility model is to provide a toy water ball to solve the problem that in the prior art, when the toy water ball hits a player, only a small amount of water may splash on the player, resulting in a poor user experience.
[0005] The toy water ball provided by the embodiments of the utility model includes: a first housing including a first connecting frame and a first water bag, the first water bag being connected to one side of the first connecting frame in the thickness direction, the first connecting frame including a first outer side wall and a first inner side wall arranged opposite to each other, the first outer side wall being provided with a protrusion extending away from the first inner side wall; a second housing including a second connecting frame and a second water bag, the second water bag being connected to one side of the second connecting frame in the thickness direction, the first connecting frame being connectable with the second connecting frame to jointly define a water storage cavity with the first housing and the second housing.
[0006] Optionally, the second connecting frame includes an abutment portion arranged adjacent to the protrusion, and the protrusion protrudes from the abutment portion.
[0007] Optionally, the protrusion is provided with a plurality of protrusions, and the plurality of protrusions are arranged at intervals in the circumferential direction of the first connecting frame.
[0008] Optionally, the second connecting frame comprises a second outer side wall and a second inner side wall arranged oppositely, and a protrusion is arranged on the second outer side wall and extends away from the second inner side wall.
[0009] Optionally, the protrusions are arranged at intervals in the circumferential direction of the first connecting frame.
[0010] Optionally, the protrusions are arranged oppositely in the thickness direction of the first connecting frame.
[0011] Optionally, the protrusions are arranged at intervals in the circumferential direction of the first connecting frame; and / or, the protrusions are arranged at intervals in the circumferential direction of the second connecting frame.
[0012] Optionally, the protrusion comprises an end wall facing away from the first inner side wall, and a first side wall and a second side wall arranged oppositely in the circumferential direction of the first connecting frame, and the end wall is smoothly connected with the first side wall and the second side wall.
[0013] Optionally, the first shell further comprises a first magnetic attraction element arranged on the first connecting frame, and the second shell further comprises a second magnetic attraction element arranged on the second connecting frame; the first magnetic attraction element and the second magnetic attraction element are attracted to each other, so that the first connecting frame can be connected to the second connecting frame by magnetic attraction.
[0014] Optionally, the first magnetic attraction element is hidden between the first connecting frame and the first water pocket, and the second magnetic attraction element is hidden between the second connecting frame and the second water pocket.
[0015] Compared with the prior art, the toy water ball provided by the embodiment of the utility model has the beneficial effects that: the toy water ball comprises a first shell and a second shell, the first shell comprises a first connecting frame and a first water pocket, the first water pocket is connected to the first connecting frame, the second shell comprises a second connecting frame and a second water pocket, the second water pocket is connected to the second connecting frame, the first connecting frame can be connected to the second connecting frame, so that the first shell and the second shell jointly define a water storage cavity; specifically, at least one of the first connecting frame and the second connecting frame is provided with a protrusion protruding outward, so that when a force is applied to the protrusion towards the inner side of the toy water ball, the protrusion will deform towards the inner side of the toy water ball, at this time, the position (such as the D position and the E position in the figure) adjacent to the protrusion will crack first, compared with the prior art, the position cracking first is closer to the position where the toy water ball hits the player, and the angle between the direction of the position cracking first and the direction in which the toy water ball hits the player is also smaller, so that the amount of water splashed on the player when the toy water ball hits the player can be increased, and the use experience of the player is excellent. Figure 2 Attached Figure Description
[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. In the accompanying drawings:
[0017] Figure 1 This is a plan view of an existing toy water balloon;
[0018] Figure 2 This is a three-dimensional schematic diagram of one of the toy water balloons provided in this embodiment of the utility model;
[0019] Figure 3 yes Figure 2 A plan view of the toy water balloon shown;
[0020] Figure 4 yes Figure 2 A three-dimensional diagram of the toy water balloon from another angle;
[0021] Figure 5 yes Figure 2 One of the diagrams showing the changing states of the toy water balloon;
[0022] Figure 6 yes Figure 2 The second diagram showing the changing states of the toy water balloon;
[0023] Figure 7 This is a three-dimensional schematic diagram of the first connecting frame, the first magnetic component, the second connecting frame, and the second magnetic component provided in an embodiment of this utility model;
[0024] Figure 8 yes Figure 7 Enlarged view of the middle M position;
[0025] Figure 9 yes Figure 7 A magnified view of the N position in the middle;
[0026] Figure 10 This is a three-dimensional schematic diagram of the second toy water balloon provided in this embodiment of the utility model;
[0027] Figure 11 yes Figure 10 A plan view of the toy water balloon shown;
[0028] Figure 12 yes Figure 10 A three-dimensional diagram of the toy water balloon from another angle;
[0029] Figure 13 yes Figure 10 One of the diagrams showing the changing states of the toy water balloon;
[0030] Figure 14 yes Figure 10Fig. 2 is a variation state diagram of the toy water ball shown in Fig. 1;
[0031] Figure 15 Fig. 3 is a perspective view of a third toy water ball according to an embodiment of the present application;
[0032] Figure 16 Fig. 4 is a plan view of the third toy water ball shown in Fig. 3; Figure 15
[0033] Figure 17 Fig. 5 is a perspective view of the third toy water ball from another angle; Figure 15
[0034] Figure 18 Fig. 6 is a variation state diagram of the third toy water ball shown in Fig. 3; Figure 15
[0035] Figure 19 Fig. 7 is a variation state diagram of the third toy water ball shown in Fig. 3; Figure 15
[0036] Figure 20 Fig. 8 is a structural diagram of the third toy water ball moving toward a player's arm; Figure 10
[0037] Figure 21 Fig. 9 is a perspective view of a fourth toy water ball according to an embodiment of the present application;
[0038] Figure 22 Fig. 10 is a plan view of the fourth toy water ball shown in Fig. 9; Figure 21
[0039] Figure 23 Fig. 11 is a perspective view of the fourth toy water ball from another angle; Figure 21
[0040] Figure 24 Fig. 12 is a variation state diagram of the fourth toy water ball shown in Fig. 9; Figure 21
[0041] Figure 25 Fig. 13 is a variation state diagram of the fourth toy water ball shown in Fig. 9; Figure 21
[0042] Fig. 14 is a perspective view of a fifth toy water ball according to an embodiment of the present application; Figure 26
[0043] Fig. 15 is a plan view of the fifth toy water ball shown in Fig. 14; Figure 27 Figure 26 Fig. 16 is a perspective view of the fifth toy water ball from another angle;
[0044] Figure 28 Figure 26 Fig. 17 is a variation state diagram of the fifth toy water ball shown in Fig. 14;
[0045] Figure 29 Fig. 18 is a variation state diagram of the fifth toy water ball shown in Fig. 14;Figure 26 One of the changing state diagrams of the toy water ball shown in the figure;
[0046] Figure 30 The Figure 26 Another angle of the toy water ball shown in the figure;
[0047] Figure 31 The The plane schematic diagram of the toy water ball shown in the figure;
[0048] Figure 32 Figure 31 Another angle of the toy water ball shown in the figure;
[0049] Figure 33 The Figure 31 Another angle of the toy water ball shown in the figure;
[0050] Figure 34 The Figure 31 One of the changing state diagrams of the toy water ball shown in the figure;
[0051] Figure 35 The Figure 31 Another of the changing state diagrams of the toy water ball shown in the figure;
[0052] Figure 36 The Another angle of the toy water ball shown in the figure;
[0053] Figure 37 Figure 36 The Another angle of the toy water ball shown in the figure;
[0054] Figure 38 Figure 36 The Another angle of the toy water ball shown in the figure;
[0055] Figure 39 Figure 36 The Another of the changing state diagrams of the toy water ball shown in the figure;
[0056] Figure 40 Figure 36 The Another of the changing state diagrams of the toy water ball shown in the figure;
[0057] Figure 41 The
[0058] The plane schematic diagram of the toy water ball shown in the figure; Figure 42 Figure 41 The
[0059] Another angle of the toy water ball shown in the figure; Figure 43 Figure 41 The
[0060] Another angle of the toy water ball shown in the figure;Figure 44 is Figure 41 a variation state diagram of the toy water ball shown in Fig.
[0061] Figure 45 is Figure 41 a variation state diagram of the toy water ball shown in Fig.
[0062] Figure 46 is a three-dimensional schematic diagram of a ninth toy water ball according to an embodiment of the present application;
[0063] Figure 47 is Figure 46 a plan view of the toy water ball shown in Fig.
[0064] Figure 48 is Figure 46 a three-dimensional schematic diagram of the toy water ball shown in Fig.
[0065] Figure 49 is Figure 46 a variation state diagram of the toy water ball shown in Fig.
[0066] Figure 50 is Figure 46 a variation state diagram of the toy water ball shown in Fig.
[0067] Figure 51 is a three-dimensional schematic diagram of a tenth toy water ball according to an embodiment of the present application;
[0068] Figure 52 is Figure 51 a plan view of the toy water ball shown in Fig.
[0069] Figure 53 is Figure 52 a three-dimensional schematic diagram of the toy water ball shown in Fig.
[0070] Figure 54 is Figure 53 a variation state diagram of the toy water ball shown in Fig.
[0071] Figure 55 is Figure 54 a variation state diagram of the toy water ball shown in Fig.
[0072] Figure 56 is Figure 2 a structural diagram of the toy water ball moving toward the player's arm.
[0073] The reference signs in the drawings are as follows:
[0074] 1000, toy water ball;
[0075] 100, first shell; 110, first connecting frame; 120, first water bag; 130, first magnetic attraction member;
[0076] 200, second shell; 210, second connecting frame; 220, second water pocket; 230, second magnetic attraction piece;
[0077] 300, water storage cavity;
[0078] 400, protrusion; 410, end wall; 411, side wall;
[0079] 500, connecting structure;
[0080] 9000, arm. DETAILED DESCRIPTION
[0081] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Now, the preferred embodiments of the present application will be described in detail with reference to the drawings.
[0082] The present application provides a toy water ball 1000, as shown in the drawings, which comprises a first shell 100 and a second shell 200. Figures 1-56 The first shell 100 comprises a first connecting frame 110 and a first water pocket 120, and the first water pocket 120 is connected to the first connecting frame 110. The second shell 200 comprises a second connecting frame 210 and a second water pocket 220, and the second water pocket 220 is connected to the second connecting frame 210. The first connecting frame 110 can be connected to the second connecting frame 210, so as to jointly define a water storage cavity 300 with the first shell 100 and the second shell 200. Among them, at least one of the first connecting frame 110 and the second connecting frame 210 is provided with a protrusion 400 protruding outward.
[0083] By implementing the present embodiment, when the protrusion 400 is subjected to a force towards the inside of the toy water ball 1000, the protrusion 400 will deform towards the inside of the toy water ball 1000. At this time, the position adjacent to the protrusion 400 (such as the D position and the E position in Figure 2 , will crack first. Compared with the prior art, the position cracking first will be closer to the position where the toy water ball 1000 hits the player, and the angle between the direction of the position cracking first and the direction in which the toy water ball 1000 hits the player will also be smaller. Therefore, by implementing the present embodiment, the amount of water splashed on the player when the toy water ball 1000 hits the player can be increased, so the use experience is excellent.
[0084] Reference Figures 7-55 In some embodiments, the first connecting frame 110 and the second connecting frame 210 both have protrusions 400 protruding outward.
[0085] Specifically, when a force is applied to the protrusion 400 on the first connecting frame 110 towards the inside of the toy water ball 1000, and / or a force is applied to the protrusion 400 on the second connecting frame 210 towards the inside of the toy water ball 1000, the position adjacent to the protrusion 400 under force will crack first. Compared with the prior art, the position that cracks first will be closer to the position where the toy water ball 1000 hits the player, and the angle between the direction of the position that cracks first and the direction in which the toy water ball 1000 hits the player will also be smaller. Therefore, by implementing the present embodiment, the amount of water splashed on the player when the toy water ball 1000 hits the player can be increased, so the experience is excellent.
[0086] Reference Figures 9-20 In some embodiments, the protrusions 400 on the first connecting frame 110 are arranged in a staggered manner with the protrusions 400 on the second connecting frame 210. This can increase the probability that the protrusions 400 will hit the player. Since the player's experience will be better when the protrusions 400 hit the player and more water splashes on the player, the player's experience will be better.
[0087] In addition, when the player rubs against the protrusion 400, the toy water ball 1000 can also crack. For example, the toy water ball 1000 is displaced along the Y direction in Figure 20 When the protrusion 400 contacts the player's arm 9000, the player's arm 9000 will apply a counterforce to the protrusion 400, so that the toy water ball 1000 will crack and water will splash on the player. The position that cracks first is the position of the abutment, so the amount of water splashed on the player will also be more.
[0088] In specific embodiments, the first connecting frame 110 has at least two protrusions 400, and the plurality of protrusions 400 on the first connecting frame 110 are arranged at intervals in the circumferential direction of the first connecting frame 110 to increase the probability that the protrusions 400 will hit the player. Since the player's experience will be better when the protrusions 400 hit the player and more water splashes on the player, the player's experience will be better.
[0089] Reference Figures 15-19 In another specific embodiment, the second connecting frame 210 has at least two protrusions 400, and the plurality of protrusions 400 on the second connecting frame 210 are arranged at intervals in the circumferential direction of the second connecting frame 210 to increase the probability that the protrusions 400 will hit the player. Since the player's experience will be better when the protrusions 400 hit the player and more water splashes on the player, the player's experience will be better.
[0090] In another specific embodiment, the first connecting frame 110 is provided with at least two protrusions 400, and the plurality of protrusions 400 on the first connecting frame 110 are arranged at intervals in the circumferential direction of the first connecting frame 110 to increase the probability of the protrusions 400 hitting the player.
[0091] With reference to Figures 21-55 In some embodiments, the protrusions 400 on the first connecting frame 110 are arranged opposite to the protrusions 400 on the second connecting frame 210, so that the toy water ball 1000 looks more symmetrical and the visual experience is excellent.
[0092] With reference to Figures 26-55 In a specific embodiment, the first connecting frame 110 is provided with at least two protrusions 400, and the plurality of protrusions 400 on the first connecting frame 110 are arranged at intervals in the circumferential direction of the first connecting frame 110, and the second connecting frame 210 is correspondingly provided with at least two protrusions 400. In this way, the probability of the protrusions 400 hitting the player can be increased, and because the water splashed on the player can be more when the protrusions 400 hit the player, the experience of the player will be better.
[0093] With reference to Figure 3 In some embodiments, the protrusions 400 include an end wall 410 facing away from the water storage cavity 300, and a side wall 411 adjacent to the end wall 410, and the end wall 410 and the side wall 411 are smoothly transitioned.
[0094] Specifically, the smoothly transitioned end wall 410 and side wall 411 means that there is no sharp corner at the connection position of the end wall 410 and the side wall 411. In this way, the situation that the sharp corner injures the player when the protrusion 400 hits the player can be avoided. Moreover, the toy water ball 1000 looks more beautiful.
[0095] In a specific embodiment, the side wall 411 and the end wall 410 together form an arc surface, so that the connection position of the side wall 411 and the end wall 410 will not have a sharp corner, and the situation that the sharp corner injures the player when the protrusion 400 hits the player can be effectively avoided.
[0096] In another specific embodiment, the side wall 411 and the end wall 410 are perpendicular, but the connection position of the side wall 411 and the end wall 410 is provided with a rounded corner, so that the connection position of the side wall 411 and the end wall 410 will not have a sharp corner, and the situation that the sharp corner injures the player when the protrusion 400 hits the player can be effectively avoided.
[0097] In some embodiments, the first connecting frame 110 is provided with a protrusion 400, and the protrusion 400 on the first connecting frame 110 is integrally formed with the first connecting frame 110, so that the number of parts can be reduced, and the production and assembly costs of the parts can be effectively reduced.
[0098] Reference Figures 7-9 In some embodiments, the first shell 100 further comprises a first magnetic attraction member 130 arranged on the first connecting frame 110, and the second shell 200 further comprises a second magnetic attraction member 230 arranged on the second connecting frame 210, the first magnetic attraction member 130 and the second magnetic attraction member 230 are attracted to each other, so that the first connecting frame 110 can be magnetically connected with the second connecting frame 210.
[0099] The embodiment has the advantages that the connection of the first shell 100 and the second shell 200 can be conveniently achieved, the first shell 100 is only required to be close to the second shell 200 by applying force until the first magnetic attraction member 130 and the second magnetic attraction member 230 are attracted to each other, and a toy water ball 1000 filled with water can be quickly made by a player.
[0100] In other embodiments, the first connecting frame 110 and the second connecting frame 210 are connected together by clamping.
[0101] In some embodiments, the first magnetic attraction member 130 is hidden between the first connecting frame 110 and the first water bag 120, and the second magnetic attraction member 230 is hidden between the second connecting frame 210 and the second water bag 220.
[0102] Specifically, the first connecting frame 110 and the first water bag 120 seal the first magnetic attraction member 130 in the embodiment, so that the first magnetic attraction member 130 is isolated from the external environment, and the first magnetic attraction member 130 is prevented from being separated from the toy water ball 1000, and the second connecting frame 210 and the second water bag 220 seal the second magnetic attraction member 230 in the embodiment, so that the second magnetic attraction member 230 is isolated from the external environment, and the second magnetic attraction member 230 is prevented from being separated from the toy water ball 1000. Therefore, by implementing the embodiment, the first magnetic attraction member 130 and the second magnetic attraction member 230 can be effectively prevented from being separated from the toy water ball 1000, and children are prevented from mistakenly swallowing the first magnetic attraction member 130 and the second magnetic attraction member 230, so that the safety is higher.
[0103] The utility model embodiment further provides a toy water ball 1000, like Figures 2-6 、 Figure 56As shown, the toy water ball 1000 comprises a first shell 100, a second shell 200 and a connecting structure 500. The first shell 100 comprises a first connecting frame 110 and a first water pocket 120 connected to the first connecting frame 110. The second shell 200 comprises a second connecting frame 210 and a second water pocket 220 connected to the second connecting frame 210. The first connecting frame 110 is connectable with the second connecting frame 210 to jointly define a water storage cavity 300 with the first shell 100 and the second shell 200. The connecting structure 500 is connected with the first connecting frame 110 and the second connecting frame 210, so that the user does not need to pick up the first shell and the second shell separately after using the toy water ball 1000, and it is convenient for the user to assemble the first shell and the second shell again. Among the first connecting frame 110 and the second connecting frame 210, only the first connecting frame 110 is provided with at least one protrusion 400 protruding outward, and the at least one protrusion 400 is located on the side of the first connecting frame 110 away from the connecting structure 500.
[0104] By implementing the present embodiment, when the protrusion 400 is subjected to a force towards the inside of the toy water ball 1000, the protrusion 400 will deform towards the inside of the toy water ball 1000, and the position adjacent to the protrusion 400 will crack first. Compared with the prior art, the position that cracks first is closer to the position where the toy water ball 1000 hits the player, and the included angle between the direction of the position that cracks first and the direction in which the toy water ball 1000 hits the player is also smaller. Therefore, by implementing the present embodiment, the amount of water splashed on the player when the toy water ball 1000 hits the player can be increased, so the user experience is excellent.
[0105] In addition, by implementing the present embodiment, the toy water ball 1000 can also be cracked when the player scratches the protrusion 400. For example, the toy water ball 1000 is displaced along the X direction in the figure towards the arm 9000 of the player. When the protrusion 400 contacts the arm 9000 of the player, the arm 9000 of the player will apply a counteracting force to the protrusion 400, so that the toy water ball 1000 will crack, causing water to splash on the player. The position that cracks first is the position of the abutment, so the amount of water splashed on the player is also relatively large. Figure 56
[0106] In some embodiments, the protrusion 400 is provided with a plurality of protrusions 400, and the plurality of protrusions 400 are arranged at intervals in the circumferential direction of the first connecting frame 110. By implementing the present embodiment, the number of protrusions 400 is increased, so the probability of the protrusion 400 hitting the player is higher. Since the protrusion 400 hitting the player can cause more water to splash on the player, the experience of the player is better.
[0107] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, but not limit them, and for those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced equivalently; all these modifications and replacements should belong to the protection scope of the claims of the present application.
Claims
1. A toy water ball characterized in that, The utility model relates to a water storage device, comprising: a first shell comprising a first connecting frame and a first water pocket connected to the first connecting frame; a second shell comprising a second connecting frame and a second water pocket connected to the second connecting frame; the second connecting frame can be connected to the first connecting frame to jointly define a water storage cavity with the first shell and the second shell; wherein; at least one of the first connecting frame and the second connecting frame is provided with a protrusion protruding outward.
2. The toy water ball according to claim 1, wherein Both the first connecting frame and the second connecting frame are provided with the protrusion protruding outward.
3. A toy water ball according to claim 2, characterised in that The protrusion on the first connecting frame is arranged in a staggered manner with the protrusion on the second connecting frame.
4. A toy water ball according to claim 3, characterised in that The first connecting frame is provided with at least two protrusions, and the plurality of protrusions on the first connecting frame are arranged at intervals in the circumferential direction of the first connecting frame.
5. The toy water ball according to claim 2, wherein The protrusion on the first connecting frame is arranged in a staggered manner with the protrusion on the second connecting frame.
6. A toy water ball according to claim 5, characterised in that The first connecting frame is provided with at least two protrusions, and the plurality of protrusions on the first connecting frame are arranged at intervals in the circumferential direction of the first connecting frame, and the second connecting frame is correspondingly provided with at least two protrusions.
7. A toy water ball according to any one of claims 1-6, characterized in that The protrusion comprises an end wall facing away from the water storage cavity and a side wall adjacent to the end wall, and the end wall and the side wall are smoothly connected.
8. A toy water ball according to any one of claims 1-6, characterised in that The first connecting frame is provided with the protrusion, and the protrusion on the first connecting frame is integrally formed with the first connecting frame.
9. A toy water ball according to any one of claims 1-6, characterized in that The first shell further comprises a first magnetic attraction member arranged on the first connecting frame, and the second shell further comprises a second magnetic attraction member arranged on the second connecting frame; the first magnetic attraction member and the second magnetic attraction member are attracted to each other to magnetically connect the first connecting frame and the second connecting frame.
10. A toy water ball characterized in that, The utility model relates to a water storage device, comprising: a first shell comprising a first connecting frame and a first water pocket connected to the first connecting frame; a second shell comprising a second connecting frame and a second water pocket connected to the second connecting frame; the second connecting frame can be connected to the first connecting frame to jointly define a water storage cavity with the first shell and the second shell; a connecting structure connected to the first connecting frame and the second connecting frame; wherein; only the first connecting frame of the first connecting frame and the second connecting frame is provided with at least one protrusion protruding outward, and the at least one protrusion is located on the side of the first connecting frame away from the connecting structure.