Toy water ball

Abstract

A toy water ball (1000), comprising a flexible housing (100), a flexible cover body (200), and elastic arms (300). The flexible housing (100) defines a water storage cavity (110) and an opening (120) communicating the water storage cavity (110) with an external space of the flexible housing (100); the outer contour of the flexible cover body (200) is larger than the contour of the opening (120) so as to seal the water storage cavity (110); the elastic arms (300) are connected to the side of the flexible cover body (200) facing the external space, and an outward acting force is applied to the flexible cover body (200). By only applying force to deform the toy water ball (1000), the water storage cavity (110) can be exposed by means of the opening (120), thus allowing for the water storage cavity (110) to be filled with water or enabling water in the water storage cavity (110) to flow out from the opening (120).

Description

A toy water ball Technical Field

[0001] The present application relates to the field of water play toys, in particular to a toy water ball. Background Art

[0002] There are two types of toy water balls currently available, one is a magnetic toy water ball, and the other is a non-magnetic toy water ball. The magnetic toy includes two shells with magnetic parts, which can enclose a water storage cavity, and when the two shells are enclosed, the magnetic parts on the two shells can attract each other to prevent the two shells from easily separating. Only when the toy water ball hits the player will the two shells be forced to separate, causing the player to be wetted by water. Since most of the users of toy water balls are children, they may pull and bite the toy water balls during use. If the magnetic parts of the toy water balls fall out when they are pulled or bitten, there is a risk of them being swallowed by children. In addition, magnetic toy water balls are more expensive because they have multiple magnetic parts. Technical issues

[0003] Non-magnetic toy water balls generally consist of two hemispheres, the edges of which are interlocked to define a water storage cavity. The disadvantage of this toy water ball is that it has poor sealing performance, and the water in the water storage cavity is easy to overflow. In addition, the connection stability between the two hemispheres of this toy water ball is also relatively poor, and the toy water ball is easy to separate before hitting the player, resulting in a poor user experience. Technical Solutions

[0004] The embodiment of the present application aims to provide a toy water ball that can effectively prevent water in a water storage chamber from overflowing while maintaining low production costs.

[0005] In the first aspect, an embodiment of the present application provides a toy water ball, which includes: a flexible shell, which defines a water storage chamber and an opening connecting the water storage chamber with the external space of the flexible shell; a flexible cover, the outer contour of the flexible cover is larger than the contour of the opening; the flexible cover is entirely located in the water storage chamber or at least the edge of the flexible cover extends into the water storage chamber and closes the water storage chamber; an elastic arm, the elastic arm is connected to the flexible shell and extends from the edge of the opening to the center of the opening, and the elastic arm is connected to the side of the flexible cover facing the external space; the elastic arm is configured to apply an outward force to the flexible cover so that the edge of the flexible cover is close to the inner wall of the water storage chamber.

[0006] Optionally, the elastic arm and the flexible shell are integrally formed, and the thickness of the elastic arm is greater than the thickness of the flexible shell.

[0007] Optionally, the elastic arm is arranged on the outer side surface of the flexible shell, so that the inner wall of the water storage cavity is a spherical or aspherical streamlined curved surface.

[0008] Optionally, an elastic ring surrounding the flexible shell is provided near the middle of the flexible shell.

[0009] Optionally, the elastic ring is integrally formed with the flexible shell and protrudes from the inner wall of the water storage cavity and / or the outer side of the flexible shell.

[0010] Optionally, the elastic arm extends from the flexible shell to connect with the elastic ring.

[0011] Optionally, the flexible shell includes an edge portion adjacent to the opening, and the edge portion is folded in a direction away from the water storage chamber.

[0012] Optionally, there are a plurality of elastic arms, and the plurality of elastic arms are evenly arranged in the circumferential direction of the opening.

[0013] Optionally, a plug hole is provided on the side of the flexible cover body facing the elastic arm, and a plug column is provided on the side of the elastic arm facing the flexible cover body, and the plug column is adapted to the plug hole to connect the elastic arm and the flexible cover body.

[0014] Optionally, a first boss is provided on a side of the flexible shell facing the elastic arm, a second boss is provided on a side of the flexible shell facing away from the elastic arm, and the plug hole connects end walls of the first boss and the second boss.

[0015] In a second aspect, an embodiment of the present application further provides another toy water ball, comprising: a flexible shell defining a water storage cavity and an opening connecting the water storage cavity with a space outside the flexible shell, wherein the flexible shell is provided with a connecting portion;

[0016] a flexible cover, wherein the outer contour of the flexible cover is larger than the contour of the opening; the flexible cover is entirely located within the water storage cavity or at least the edge of the flexible cover extends into the water storage cavity and seals the water storage cavity;

[0017] An elastic arm is arranged on the side of the flexible cover body facing the external space and has a connecting end; when the connecting end of the elastic arm is installed on the connecting portion, it is configured to apply an outward force to the flexible cover body so that the edge of the flexible cover body is closely attached to the inner wall of the water storage cavity.

[0018] Optionally, the elastic arm and the flexible cover are integrally formed, the connecting portion comprises a connecting column protruding from the outer surface of the flexible shell, the connecting end is provided with a connecting hole, and the connecting hole is sleeved outside the connecting column. Beneficial effects

[0019] Compared to the prior art, the toy water ball provided by the embodiment of the present application has the following advantages: the toy water ball of the embodiment of the present application includes a flexible shell, a flexible cover, and an elastic arm. The flexible shell defines a water storage chamber and an opening connecting the water storage chamber with the external space of the flexible shell. The outer contour of the flexible cover is larger than the contour of the opening. The flexible cover is entirely located within the water storage chamber, or at least the edge of the flexible cover extends deep into the water storage chamber and seals the water storage chamber. The elastic arm is connected to the side of the flexible cover facing the external space. The elastic arm is configured to apply an outward force to the flexible cover, so that the flexible cover can be pressed against the inner wall of the water storage chamber under the action of the elastic arm. When the water storage chamber needs to be filled with water, the toy water ball only needs to be deformed by force to expose the water storage chamber through the opening. After the toy water ball hits a target, the toy water ball will also be deformed by force, causing the water in the water storage chamber to overflow from the opening. It can be seen that compared with the magnetic toy water balls in the prior art, the toy water balls of the present application do not require built-in magnetic parts, and the safety and production costs are relatively high; compared with the non-magnetic toy water balls in the prior art, in the toy water balls of the present application, the flexible cover can be tightly attached to the inner wall of the water storage chamber under the action of the elastic arm, so it has good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific implementation of the present application will be further described in detail below with reference to the accompanying drawings and examples, in which:

[0021] FIG1 is a perspective schematic diagram of a toy water ball provided in an embodiment of the present application;

[0022] FIG2 is an exploded schematic diagram of the toy water ball shown in FIG1 ;

[0023] FIG3 is a cross-sectional view of the toy water ball shown in FIG1 ;

[0024] FIG4 is a perspective schematic diagram of a toy water ball provided by another embodiment of the present application;

[0025] FIG5 is a perspective schematic diagram of the flexible cover of the toy water ball shown in FIG1 ;

[0026] FIG6 is a schematic structural diagram of the matching between the plug-in column and the plug-in hole provided in an embodiment of the present application;

[0027] FIG7 is a schematic structural diagram of a toy water ball provided in another embodiment of the present application;

[0028] FIG8 is an exploded schematic diagram of the toy water ball shown in FIG7 .

[0029] The reference numerals in the figures are:

[0030] 1000, toy water balls;

[0031] 100, flexible housing; 110, water storage chamber; 120, opening; 130, edge portion; 140, connecting portion; 141, connecting column;

[0032] 200, flexible cover; 210, plug hole; 220, first boss; 230, second boss;

[0033] 300, elastic arm; 310, plug-in column; 311, head; 312, body; 313, connecting end; 3131, connecting hole;

[0034] 400. Elastic ring. Best Mode for Carrying Out the Invention

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, the preferred embodiments of the present application are described in detail.

[0036] The present invention provides a toy water ball 1000, as shown in Figures 1-4. The toy water ball 1000 includes a flexible shell 100, a flexible cover 200, and an elastic arm 300. The flexible shell 100 defines a water storage chamber 110 and an opening 120 connecting the water storage chamber 110 with the exterior of the flexible shell 100. The outer contour of the flexible cover 200 is larger than the contour of the opening 120. The flexible cover 200 is entirely located within the water storage chamber 110, or at least the edge of the flexible cover 200 extends into the water storage chamber 110 and seals the water storage chamber 110. The elastic arm 300 is connected to the flexible shell 100 and extends from the edge of the opening 120 toward the center of the opening 120. The elastic arm 300 is connected to the side of the flexible cover 200 facing the exterior. The elastic arm 300 is configured to exert an outward force on the flexible cover 200, thereby causing the edge of the flexible cover 200 to contact the inner wall of the water storage chamber 110.

[0037] Specifically, since the flexible shell 100 and the flexible cover 200 are both made of flexible materials, the user can apply force to the toy water ball 1000 to make the toy water ball 1000 elastically deform. At this time, the water storage chamber 110 can be exposed by the opening 120, so that water can be filled into the water storage chamber 110. After filling with water, you only need to stop applying force to the toy water ball 1000, and the toy water ball 1000 will restore its deformation. Since the outer contour of the flexible cover 200 is larger than the contour of the opening 120, and the elastic arm 300 will apply an outward force to the flexible cover 200, the flexible cover 200 will be close to the inner wall of the water storage chamber 110 under the action of the elastic arm 300, so that the water storage chamber 110 can be well sealed to prevent water in the water storage chamber 110 from leaking out. When the user throws the toy water ball 1000 and it hits the player, the toy water ball 1000 will be elastically deformed by the external force. At this time, the water storage chamber 110 can be exposed by the opening 120. The water in the water storage chamber 110 will overflow from the opening 120 under the action of the external force, causing the player hit by the toy water ball 1000 to be wetted by the water.

[0038] Of course, it is understandable that throwing the toy water ball at the player is only a reference way to play the water ball game. In addition to throwing it at the player, the toy water ball 1000 can also be simply thrown at the bottom, wall or other places. This embodiment does not limit this.

[0039] Compared to magnetic water polo toys, the toy water polo of this embodiment does not require built-in magnetic components. Therefore, there is no risk of the magnetic components falling out of the toy water polo 1000 and being swallowed by a child if the toy water polo is pulled or bitten. Because there is no need for built-in magnetic components, the production cost is also lower than that of magnetic water polo toys. Therefore, the toy water polo 1000 of this embodiment is safer and has a lower production cost.

[0040] Compared to non-magnetic toy water balls, the toy water ball 1000 shown in this embodiment has good sealing performance. Specifically, when the flexible cover 200 covers the opening 120 of the flexible shell 100, the elastic arm 300 exerts an outward force on the flexible cover 200, so that the flexible cover 200 is pressed against the inner wall of the water storage chamber 110 under the action of the elastic arm 300, so that the water storage chamber 110 can be well sealed to prevent water in the water storage chamber 110 from leaking out.

[0041] 1 to 3 , in a specific embodiment, the elastic arm 300 and the flexible housing 100 are integrally formed, and the thickness of the elastic arm 300 is greater than the thickness of the flexible housing 100 .

[0042] Specifically, the integral formation of the elastic arm 300 and the flexible housing 100 not only makes the toy water ball 1000 less susceptible to damage, but also effectively reduces the structural complexity of the toy water ball 1000, thereby lowering the production cost of the toy water ball 1000. The thickness of the elastic arm 300 is greater than that of the flexible housing 100, which helps ensure that the elastic arm 300 provides sufficient force for the flexible cover 200, thereby ensuring that the water storage chamber 110 is properly sealed.

[0043] 1 to 3 , in a specific embodiment, the elastic arm 300 is disposed on the outer side of the flexible housing 100 so that the inner wall of the water storage chamber 110 is a spherical or aspherical streamlined curved surface.

[0044] Specifically, if the elastic arm 300 is arranged in the flexible shell 100, the elastic arm 300 will protrude from the wall of the water storage chamber 110, which will affect the sealing performance of the flexible cover 200 and the wall of the water storage chamber 110 to a certain extent. Therefore, in this embodiment, the elastic arm 300 is arranged on the outer side surface of the flexible shell 100, so that the inner wall surface of the water storage chamber 110 is a spherical or aspherical streamlined surface, thereby improving the sealing performance of the flexible cover 200 and the flexible shell 100 when pressed together, effectively preventing the water in the water storage chamber 110 from overflowing before the toy water ball 1000 hits the player, and providing an excellent user experience.

[0045] 1 to 3 , in one embodiment, an elastic ring 400 surrounding the flexible shell 100 is provided near the middle of the flexible shell 100 .

[0046] Specifically, the elastic ring 400 is used to apply force to the toy water ball 1000 after it has elastically deformed, causing it to return to its original shape. For example, when a user needs to fill the water storage chamber 110 with water, they can apply force to the toy water ball 1000, causing it to elastically deform. This allows the water storage chamber 110 to be exposed through the opening 120, facilitating further filling. If too much force is applied during filling, the toy water ball 1000 may not return to its original shape smoothly, or may return very slowly, when the user stops applying force. By adding the elastic ring 400, the toy water ball 1000 can be urged to return to its original shape when the user stops applying force, providing an excellent user experience.

[0047] 1 to 3 , in one embodiment, the elastic ring 400 is integrally formed with the flexible shell 100 , and the elastic ring 400 protrudes from the inner wall of the water storage chamber 110 or the outer side of the flexible shell 100 .

[0048] Specifically, the integral molding of the elastic ring 400 and the flexible shell 100 makes the toy water ball 1000 less susceptible to damage, effectively reducing the structural complexity of the toy water ball 1000 and, consequently, lowering the production cost. In embodiments where the elastic ring 400 protrudes only from the inner wall of the water storage chamber 110, the elastic ring 400 is not visible on the outer surface of the toy water ball 1000, resulting in a more enhanced visual experience and aesthetic appeal. In embodiments where the elastic ring 400 protrudes only from the outer surface of the flexible shell 100, the elastic ring 400 does not compress the space in the water storage chamber 110, allowing the water storage chamber 110 to hold more water. In embodiments where the elastic ring 400 protrudes from both the inner wall of the water storage chamber 110 and the outer surface of the flexible shell 100, the elastic ring 400 exerts a greater elastic force, effectively causing the toy water ball 1000 to return to a round shape.

[0049] 1-3 , in one embodiment, the elastic arm 300 extends from the flexible shell 100 to connect with the elastic ring 400 . This increases the structural strength of the elastic arm 300 and enables it to exert a more sufficient force on the flexible cover 200 , thereby improving the sealing performance when the flexible cover 200 and the flexible shell 100 are crimped together.

[0050] 1 to 3 , in one embodiment, the flexible housing 100 includes an edge portion 130 adjacent to the opening 120 , and the edge portion 130 is folded away from the water storage chamber 110 .

[0051] Specifically, if the structural strength of the edge portion 130 is too low, the edge portion 130 can easily be torn during play, causing the toy water ball 1000 to age. The folded edge portion 130 of this embodiment effectively increases the structural strength of the edge portion 130 and prevents the edge portion 130 from being torn during play.

[0052] 1 to 3 , in order to apply a greater and more balanced force to the flexible cover 200 , in a specific embodiment, a plurality of elastic arms 300 are provided, and the plurality of elastic arms 300 are evenly arranged in the circumferential direction of the opening 120 .

[0053] Specifically, increasing the number of elastic arms 300 can exert a greater force on the flexible cover 200. Evenly distributing multiple elastic arms 300 around the circumference of the opening 120 can exert a more balanced force on the flexible cover 200. Thus, implementing this embodiment can improve the sealing performance of the flexible cover 200 and the flexible housing 100 during press-fit, effectively preventing the water in the water storage chamber 110 from overflowing before the toy water ball 1000 hits the player, resulting in an excellent user experience. In specific embodiments, two, three, or more elastic arms 300 can be provided.

[0054] Referring to Figures 1 to 6, in one embodiment, a plug hole 210 is provided on the side of the flexible cover 200 facing the elastic arm 300, and a plug column 310 is provided on the side of the elastic arm 300 facing the flexible cover 200. The plug column 310 is adapted to the plug hole 210 to connect the elastic arm 300 and the flexible cover 200.

[0055] 1-6 , in a specific embodiment, a first boss 220 is provided on the side of the flexible shell 100 facing the elastic arm 300 , a second boss 230 is provided on the side of the flexible shell 100 facing away from the elastic arm 300 , and the plug hole 210 connects the ends of the first boss 220 and the second boss 230 .

[0056] If the structural strength of the connection between the flexible shell 100 and the elastic arm 300 is too low, the connection between the flexible shell 100 and the elastic arm 300 may easily break during use, causing the toy water ball 1000 to fail. The first boss 220 and the second boss 230 can effectively increase the structural strength of the connection between the flexible shell 100 and the elastic arm 300, reducing the probability of the connection between the flexible shell 100 and the elastic arm 300 breaking during use.

[0057] Referring to Figure 6, in a specific embodiment, the plug-in column 310 includes a head 311 and a body 312 connected to the head 311, the body 312 is inserted into the plug-in hole 210, and the head 311 is located on the side of the plug-in hole 210 close to the water storage chamber 110, and the outer contour of the head 311 is larger than the contour of the plug-in hole 210, so that the elastic arm 300 can be stably clamped together with the flexible cover 200, and the connection between the two will not be easily released, which can effectively improve the stability of the toy water ball 1000 during use.

[0058] In another embodiment, a glue layer is provided between the plug-in post 310 and the plug-in hole 210 , and the elastic arm 300 and the flexible cover 200 are stably connected by the glue layer.

[0059] The present application also provides another toy water ball 1000, as shown in Figures 7 and 8. Toy water ball 1000 includes a flexible shell 100, a flexible cover 200, and an elastic arm 300. Flexible shell 100 defines a water storage chamber 110 and an opening 120 connecting the water storage chamber 110 with the exterior of flexible shell 100. Flexible shell 100 is provided with a connecting portion 140. The outer contour of flexible cover 200 is larger than the contour of opening 120. Flexible cover 200 is entirely located within water storage chamber 110, or at least the edge of flexible cover 200 extends into and seals water storage chamber 110. Elastic arm 300 is disposed on the side of flexible cover 200 facing the exterior and has a connecting end 313. When connecting end 313 is attached to connecting portion 140, elastic arm 300 is configured to exert an outward force on flexible cover 200, forcing the edge of flexible cover 200 into contact with the inner wall of water storage chamber 110.

[0060] Specifically, since the flexible shell 100 and the flexible cover 200 are both made of flexible materials, the user can apply force to the toy water ball 1000 to cause the toy water ball 1000 to produce elastic deformation. At this time, the water storage chamber 110 can be exposed by the opening 120, so that water can be filled into the water storage chamber 110. After filling with water, you only need to stop applying force to the toy water ball 1000, and the toy water ball 1000 will restore its deformation. Since the outer contour of the flexible cover 200 is larger than the contour of the opening 120, and the connecting end 313 of the elastic arm 300 will apply an outward force to the flexible cover 200 when installed on the connecting part 140, the flexible cover 200 will be close to the inner wall of the water storage chamber 110 under the action of the elastic arm 300, so that the water storage chamber 110 can be well sealed to prevent water in the water storage chamber 110 from leaking out. When the user throws the toy water ball 1000 and it hits the player, the toy water ball 1000 will be elastically deformed by the external force. At this time, the water storage chamber 110 can be exposed by the opening 120. The water in the water storage chamber 110 will overflow from the opening 120 under the action of the external force, causing the player hit by the toy water ball 1000 to be wetted by the water.

[0061] Of course, it is understandable that throwing the toy water ball at the player is only a reference way to play the water ball game. In addition to throwing it at the player, the toy water ball 1000 can also be simply thrown at the bottom, wall or other places. This embodiment does not limit this.

[0062] Compared to magnetic water polo toys, the toy water polo of this embodiment does not require built-in magnetic components. Therefore, there is no risk of the magnetic components falling out of the toy water polo 1000 and being swallowed by a child if the toy water polo is pulled or bitten. Because there is no need for built-in magnetic components, the production cost is also lower than that of magnetic water polo toys. Therefore, the toy water polo 1000 of this embodiment is safer and has a lower production cost.

[0063] Compared to non-magnetic toy water balls, the toy water ball 1000 shown in this embodiment has good sealing performance. Specifically, when the flexible cover 200 covers the opening 120 of the flexible shell 100, the elastic arm 300 exerts an outward force on the flexible cover 200, so that the flexible cover 200 is pressed against the inner wall of the water storage chamber 110 under the action of the elastic arm 300, so that the water storage chamber 110 can be well sealed to prevent water in the water storage chamber 110 from leaking out.

[0064] 7 and 8 , in a specific embodiment, the elastic arm 300 is integrally formed with the flexible cover 200, thereby reducing the structural complexity of the toy water ball 1000 and lowering the production cost of the toy water ball 1000. The connecting portion 140 includes a connecting post 141 protruding from the outer surface of the flexible shell 100, and a connecting end 313 having a connecting hole 3131 that is sleeved around the connecting post 141.

[0065] Specifically, the connection hole 3131 cooperates with the connection column 141 to mount the elastic arm 300 on the flexible housing 100 . This eliminates the need for glue to be disposed between the connection end 313 and the connection portion 140 , thereby reducing assembly costs.

[0066] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Those skilled in the art may modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to this application.

Claims

1. A toy water ball, characterized in that: include: a flexible shell defining a water storage cavity and an opening communicating between the water storage cavity and a space outside the flexible shell; a flexible cover, wherein the outer contour of the flexible cover is larger than the contour of the opening; The flexible cover is entirely located in the water storage cavity, or at least the edge of the flexible cover extends into the water storage cavity and seals the water storage cavity; an elastic arm connected to the flexible shell and extending from the edge of the opening to the center of the opening, and connected to a side of the flexible cover facing the external space; The elastic arm is configured to exert an outward force on the flexible cover so that the edge of the flexible cover is closely attached to the inner wall of the water storage cavity.

2. The toy water ball according to claim 1, characterized in that: The elastic arm and the flexible shell are integrally formed, and the thickness of the elastic arm is greater than the thickness of the flexible shell.

3. The toy water ball according to claim 2, characterized in that: The elastic arm is arranged on the outer side surface of the flexible shell, so that the inner wall of the water storage cavity is a spherical or aspherical streamlined curved surface.

4. The toy water ball according to any one of claims 1 to 3, characterized in that: An elastic ring surrounding the flexible shell is provided near the middle of the flexible shell.

5. The toy water ball according to claim 4, characterized in that: The elastic ring is integrally formed with the flexible shell and protrudes from the inner wall of the water storage cavity and / or the outer side of the flexible shell.

6. The toy water ball according to claim 4, characterized in that: The elastic arm extends from the flexible shell to be connected with the elastic ring.

7. The toy water ball according to any one of claims 1 to 3, characterized in that: The flexible shell includes an edge portion adjacent to the opening, and the edge portion is folded in a direction away from the water storage chamber.

8. The toy water ball according to any one of claims 1 to 3, characterized in that: There are a plurality of elastic arms, and the elastic arms are evenly arranged in the circumferential direction of the opening.

9. The toy water ball according to any one of claims 1 to 3, characterized in that: The flexible cover is provided with a plug hole on one side facing the elastic arm, and a plug post is provided on one side facing the flexible cover. The plug post is adapted to the plug hole to connect the elastic arm and the flexible cover.

10. The toy water ball according to claim 9, characterized in that: The flexible shell is provided with a first boss on a side facing the elastic arm, and a second boss on a side facing away from the elastic arm. The plug hole communicates with the end wall of the first boss and the end wall of the second boss.

11. A toy water ball, characterized in that: include: a flexible shell defining a water storage cavity and an opening communicating between the water storage cavity and a space outside the flexible shell, wherein the flexible shell is provided with a connecting portion; a flexible cover, wherein the outer contour of the flexible cover is larger than the contour of the opening; the flexible cover is entirely located within the water storage cavity or at least the edge of the flexible cover extends into the water storage cavity and seals the water storage cavity; An elastic arm is arranged on the side of the flexible cover body facing the external space and has a connecting end; when the connecting end of the elastic arm is installed on the connecting portion, it is configured to apply an outward force to the flexible cover body so that the edge of the flexible cover body is closely attached to the inner wall of the water storage cavity.

12. The toy water ball according to claim 11, characterized in that: The elastic arm and the flexible cover are integrally formed, the connecting portion comprises a connecting column protruding from the outer surface of the flexible shell, the connecting end is provided with a connecting hole, and the connecting hole is sleeved outside the connecting column.

Images