drainage device

By combining snap-fit ​​and hole-shaft structure, the problem of uneven surface of drainage device or cover on uneven ground is solved, realizing adaptive adjustment and ensuring the flatness of drainage device or cover and drainage effect.

CN224495352UActive Publication Date: 2026-07-14SHANGHAI BIAOPU IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI BIAOPU IND CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-14

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Abstract

The application provides a drainage device, comprising a plurality of drainage units connected along a length direction to form the drainage device, the drainage device further comprising a width direction and a height direction, two adjacent drainage units are connected on one side of the width direction through a clamping structure and connected on the other side of the width direction through a hole shaft structure. The drainage device does not have the problem of local protrusion unevenness through the structure of the hole shaft structure and the clamping structure while maintaining the original micro-bending and micro-opening effects.
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Description

Technical Field

[0001] This utility model relates to the field of drainage structures, specifically to the field of drainage device connection structures. Background Technology

[0002] Several prior Chinese patents by the inventor, CN210117780 and CN210342180, describe a drainage device that consists of multiple drainage units connected by a connecting structure. Each unit is a separately manufactured piece, and adjacent units are joined by tenons and mortises, thereby connecting the multiple units sequentially. Chinese patent CN210194824 also provides a drainage cover, which includes multiple cover unit components, each a separately manufactured piece. This drainage device or cover can achieve overall bending and possesses a certain degree of tensile elasticity.

[0003] However, the inventors discovered that adjacent units of this type of drainage device or drainage cover often have fixed points at one end in the width direction, while the other end does not, in order to achieve a certain degree of elasticity and bending performance. However, in actual installation, this structure easily leads to uneven surfaces. For example, under conditions of uneven foundation ground such as foundation settlement, or when the drainage ditch is subjected to uneven force on the left and right sides, the side of the drainage device or drainage cover without fixed points often becomes uneven due to compression and lifting. Uneven drainage surfaces affect drainage efficiency and also disrupt traffic. Utility Model Content

[0004] One objective of this invention is to provide a drainage device with a top level adaptive adjustment capability.

[0005] The drainage device for achieving the above purpose includes multiple drainage units connected along the length direction to form the drainage device. The drainage device also includes a width direction and a height direction. Adjacent drainage units are connected on one side of the width direction by a snap-fit ​​structure and on the other side of the width direction by a hole-shaft structure.

[0006] In one or more embodiments, the hole-shaft structure includes a connecting hole disposed on one side of two adjacent drainage units and a cantilever beam disposed on the other side of the two adjacent drainage units.

[0007] In one or more embodiments, the internal size of the connecting hole is larger than that of the cantilever beam, so that there is extra space after the connecting hole is inserted into the cantilever beam, which allows the adjacent drainage unit to undergo relative displacement.

[0008] In one or more embodiments, the connecting hole is expanded, and the size of the opening of the connecting hole is smaller than the internal size of the hole away from the opening.

[0009] In one or more embodiments, the cantilever beam is a columnar member, and the inner diameter of the connecting hole gradually increases from the opening.

[0010] In one or more embodiments, the cross-section of the connecting hole is rectangular, and the cantilever beam is a rectangular column.

[0011] In one or more embodiments, the snap-fit ​​structure includes a tenon disposed on one side of two adjacent drainage units and a mortise disposed on the other side of two adjacent drainage units.

[0012] In one or more embodiments, the tenon and mortise are inserted in the height direction or the length direction.

[0013] In one or more embodiments, the drainage unit with a mortise and tenon joint is provided with a protrusion for forming the mortise and tenon joint.

[0014] In one or more embodiments, the drainage device is a drainage cover or a drainage ditch.

[0015] The drainage unit of the aforementioned drainage device has a fixed point formed by a snap-fit ​​structure at one end in the width direction, and is connected by a hole-shaft structure on the other side in the width direction. This hole-shaft structure does not make the two sides of adjacent drainage units completely immovable fixed structures, but rather temporarily serves as a connection. Thus, during the installation process, even if the ground is uneven, the hole-shaft structure allows all drainage units to form a whole, preventing local bulges. Furthermore, the hole-shaft structure can absorb a certain amount of external force, thereby ensuring that the top surface of the drainage device always remains flat, achieving self-adjusting capability for the top level. At the same time, this structure does not affect the original micro-bending and micro-opening effect of the drainage unit. Attached Figure Description

[0016] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the first embodiment of the drainage ditch;

[0018] Figure 2 This is a top view of the first embodiment of the drainage ditch;

[0019] Figure 3 This is a schematic diagram of a second embodiment of the drainage ditch;

[0020] Figure 4 This is a top view of the second embodiment of the drainage ditch;

[0021] Figure 5A This is a schematic diagram of the first embodiment of the drainage cover;

[0022] Figure 5BThis is a top view of two adjacent drainage units in the first embodiment of the drainage cover;

[0023] Figure 6A This is a schematic diagram of a second embodiment of the drainage cover;

[0024] Figure 6B This is a schematic diagram of two adjacent drainage units in the second embodiment of the drainage cover;

[0025] Figure 7 This is a schematic diagram of a curved drainage device. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments and accompanying drawings. More details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can obviously be implemented in many other ways different from those described herein. Those skilled in the art can make similar extensions and derivations based on actual application situations without departing from the spirit of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0027] It should be noted that these and other accompanying drawings are merely examples and are not drawn to scale, and should not be used as a limitation on the scope of protection of this utility model. Figures 1 to 4 The form of the drainage ditch of the drainage device is shown. Figures 5A to 6B The form of the drainage cover plate of the drainage device is shown. Figure 7 The drawing shows the overall curved drainage device. In the drawing, the X direction represents the length direction, the Y direction represents the width direction, and the Z direction represents the height direction.

[0028] The drainage device 100 includes a plurality of drainage units 10 connected along its length. For a drainage unit 10 with a support leg A along the z-direction, it is formed... Figures 1 to 4 The drainage ditch shown is formed for drainage unit 10' without support leg A. Figures 5A to 6B The drainage cover shown.

[0029] Two adjacent drainage units 10 are connected on one side of the width direction y by a snap-fit ​​structure B, and on the other side of the width direction y by a hole-shaft structure C, as shown below. Figure 2 As shown. The hole-shaft structure C is located at the top of the drainage unit in the Z direction, and the snap-fit ​​structure B is located at the middle of the drainage unit in the Z direction, as shown. Figure 3 As shown.

[0030] Furthermore, along the length direction X, the drainage unit is divided into ab parts, such as... Figure 1 As shown in Figures 10(a) and 10(b), the ab components are arranged alternately to form a drainage device, as follows: Figure 2As shown, the snap-fit ​​structure B and the hole-shaft structure C are alternately set at this time.

[0031] The hole-shaft structure C includes a connecting hole 12 located on one side of two adjacent drainage units and a cantilever beam 11 located on the other side of two adjacent drainage units. For drainage units 10 divided into ab parts, the location and form of the connecting hole 12 on each drainage unit are different. Figure 1 and Figure 2 The difference between the first and second embodiments of the drainage ditch shown lies in the location of the connection hole 12 and the cantilever beam 11 on a single drainage unit.

[0032] As in Figure 1 and Figure 2 In the first embodiment of the drainage ditch shown, the connecting hole 12 of the drainage unit 10(a) is a through hole and is located only on one side in the Y direction; the drainage unit 10(b) includes connecting holes 12 located on both sides in the Y direction, with the connecting hole on the left being a blind hole 122 and the connecting hole on the right being a through hole 121. This arrangement is for cooperation with the cantilever beam 11 of the drainage unit 10(a). Figure 1 and Figure 2 In the first embodiment shown, both drainage unit 10(a) and drainage unit 10(b) are provided with cantilever beams 11.

[0033] exist Figure 3 and Figure 4 In the second embodiment of the drainage ditch shown, only the drainage unit 10(b) has a cantilever beam 11, and cantilever beams 11 are provided on both sides of the Y direction. The drainage unit 10(a) does not have a cantilever beam 11, and connection holes 12 are provided on both sides of the Y direction. All connection holes 12 are through holes.

[0034] Snap-fit ​​structure B provides a fixed connection method, while hole-shaft structure C does not provide a fixed connection method. Snap-fit ​​structure B can be the tenon and mortise scheme with vertical insertion along the height Z direction as described in CN210342180, or it can be... Figure 3 The tenon 31 and mortise 32 are shown inserted along the length X direction.

[0035] Figures 5A-5B In the drainage cover plates shown in 6A-6B, the drainage unit 10' is also divided into ab parts. Drainage unit 10'(a) includes a tenon 31' and a connecting hole 12' on the first side of the width direction Y, and a cantilever beam 11' and a mortise 32' on the second side. Drainage unit 10'(b) includes a tenon 31' and a connecting hole 12' on the second side of the width direction Y, and a cantilever beam 11' and a mortise 32' on the first side. The difference between the first and second embodiments of the drainage cover plate lies in the shape of the hole-shaft structure. Figures 5A-5B The cantilever beam 11' shown is a rectangular column, and the connecting hole 12' is a rectangular hole. Figures 6A-6BThe cantilever beam 11' shown is a cylindrical component, and the connecting hole 12' is a cylindrical inner hole.

[0036] The aforementioned drainage device uses a fixed point with a snap-fit ​​structure B at one end in the width direction Y, and is connected to the other side in the width direction Y by a hole-shaft structure C. This hole-shaft structure C does not make both sides of the adjacent drainage units 10 completely immovable fixed structures, but rather temporarily serves as a connection. Thus, even if the ground is uneven during installation, the hole-shaft structure C allows all drainage units to form a whole, effectively preventing local protrusions.

[0037] In some embodiments, the internal size of the connecting hole 12 of the hole-shaft structure C is larger than that of the cantilever beam 11, that is, the connecting hole 12 is in an expanded shape, and the size of the opening of the connecting hole 12 is smaller than the internal size of the hole away from the opening, so that the connecting hole 12 has extra space after the cantilever beam 11 is inserted, and this extra space allows the adjacent drainage unit to generate relative displacement.

[0038] For a cantilever beam 11 that is a columnar structure, the connecting hole 12 is expanded, with its inner diameter gradually increasing from the opening to form a flared hole. In this way, with the extra space of the flared hole and the certain elasticity of the cantilever beam, the hole-shaft structure can absorb a certain amount of external force, thereby ensuring that the top surface of the drainage device remains flat and achieving adaptive adjustment of the top level. At the same time, this structure does not affect the original micro-bending and micro-opening effects of the drainage unit. Figure 7 The diagram illustrates a curved structure of the drainage unit achieved through micro-bending and micro-tensioning, with the length direction X' being arc-shaped. The ends of this curved drainage unit are plugs, which differ from the ab components of the drainage unit.

[0039] The drainage unit can be made of plastic or metal.

[0040] The aforementioned drainage device achieves the connection of drainage ditches or covers through a modular drainage unit plug-in structure. The plug-in structure includes a hole-shaft structure and a snap-fit ​​structure. Through the clearance-fitted cantilever beam and connecting holes, it ensures that the top surface of the drainage ditch or cover remains flat and prevents local bulging.

[0041] It should be noted that the use of terms such as "first" and "second" to define the components in the above content is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0042] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0043] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible variations and modifications without departing from the spirit and scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A drainage device comprising a plurality of drainage units connected along a length direction to form the drainage device, the drainage device further comprising width and height directions, characterized in that, The two adjacent drainage units are connected on one side of the width direction by a snap-fit ​​structure and on the other side of the width direction by a hole-shaft structure.

2. The drainage device as described in claim 1, characterized in that, The hole-shaft structure includes a connecting hole on one side of two adjacent drainage units and a cantilever beam on the other side of two adjacent drainage units.

3. The drainage device as described in claim 2, characterized in that, The internal dimensions of the connecting hole are larger than those of the cantilever beam, so that there is extra space after the connecting hole is inserted into the cantilever beam, which allows the adjacent drainage unit to undergo relative displacement.

4. The drainage device as described in claim 2, characterized in that, The connecting hole is expanded, and the size of the opening of the connecting hole is smaller than the size of the hole's interior furthest from the opening.

5. The drainage device as described in claim 2, characterized in that, The connecting hole is a cylindrical inner hole, the cantilever beam is a cylindrical component, and the inner diameter of the connecting hole gradually increases from the opening.

6. The drainage device as described in claim 2, characterized in that, The cross-section of the connecting hole is rectangular, and the cantilever beam is a rectangular column.

7. The drainage device as described in claim 1, characterized in that, The snap-fit ​​structure includes a tenon on one side of two adjacent drainage units and a mortise on the other side of two adjacent drainage units.

8. The drainage device as described in claim 7, characterized in that, The insertion direction of the tenon and the mortise is either the height direction or the length direction.

9. The drainage device as described in claim 7, characterized in that, The drainage unit with the mortise and tenon has a protrusion for forming the mortise and tenon.

10. The drainage device as claimed in claim 1, characterized in that, The drainage device is a drainage cover or a drainage ditch.