Device for covering a weep hole
By designing an automated roller-driven covering device, the problem of inconvenient liquid groove covering was solved, the practicality and hydrophobicity of the device were improved, and the covering was not easily corroded during use, making it convenient for cleaning and environmental parameter checking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA TIANYUAN MANGANESE IND CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-29
AI Technical Summary
Existing liquid trench covering devices are inconvenient to open and lack sufficient hydrophobicity, affecting operational convenience and cleaning efficiency.
The cover body is driven by a roller and a drive motor. The automatic opening and closing of the cover is achieved by the rotation of the connecting rod and the support rod. The support rod is provided with a protrusion to improve hydrophobicity. Combined with a waterproof layer or a hydrophobic oil film layer and a rain collection groove design, the hydrophobic performance of the device is enhanced.
The automated operation of liquid trench covering has been achieved, which improves the practicality and hydrophobicity of the device, ensures that the covering is not easily corroded during use, and facilitates cleaning and environmental parameter checking.
Smart Images

Figure CN224300035U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pipeline technology for chemical production, and more specifically to a device for covering liquid channels. Background Technology
[0002] A liquid trench is an underground channel within a chemical production plant used to transport liquids. It is typically used to remove treated, directly dischargeable neutralized liquids from the production environment and into a storage tank for storing the neutralized liquid. Over time, sediment may accumulate inside the trench, requiring regular cleaning. During cleaning, operators or cleaning equipment must enter the trench through an inspection port. This inspection port needs to be covered to facilitate opening and closing of the trench and to allow for monitoring of environmental parameters within the trench. Existing trench covers are generally made of cement slabs embedded directly into the inspection port. However, this type of cover has drawbacks, including difficulty in opening and insufficient hydrophobicity. Utility Model Content
[0003] This invention provides a device for covering liquid channels, thereby solving the problem mentioned in the background art that the cover is inconvenient to open, resulting in its limited practicality.
[0004] The device for covering liquid channels provided by this utility model includes a roller and a drive motor mounted on the roller. A covering body is wound around the roller, and mounting seats are provided at both ends and the middle of the roller. The mounting seats at both ends include a rotating shaft. The free ends of two support rods hinged at one end are respectively sleeved with the rotating shaft and connected to the end of a connecting rod arranged parallel to the roller. The covering body is connected to the connecting rod. The drive motor controls the rotation of the roller to make the connecting rod move closer to or away from the roller. A portion of the support rod is provided with a protrusion protruding from the surface of the support rod.
[0005] Optionally, the surface of the covering body includes a waterproof layer or a hydrophobic oil film layer.
[0006] Optionally, it also includes a rain collection trough, one end of which is connected to the mounting base, and its extension direction intersects the vertical direction.
[0007] Optionally, a hanging ladder is also included, and hooks are also provided on the mounting bases at both ends of the roller, with the top of the hanging ladder ready to be hooked to the hooks.
[0008] Optionally, the ladder includes several interconnected connecting units, each connecting unit including a horizontal axis and a streamlined vertical axis hinged to both ends of the horizontal axis, with the vertical axes of adjacent connecting units being hinged to each other.
[0009] Optionally, the covering body may be made of waterproof cloth or interconnected rolls.
[0010] Optionally, the convex hull includes a plurality of convex hulls, the size of which increases along a direction close to the center of the reel.
[0011] The beneficial effects of this utility model are:
[0012] This invention not only achieves automatic covering and automatic uncovering of the liquid channel, but also improves the practicality of the liquid channel covering device; in addition, it effectively improves the hydrophobicity of the device. Attached Figure Description
[0013] Figure 1 This is a top view of the device for covering a liquid channel provided in this application.
[0014] Figure 2 This is a schematic diagram of the structure of the hanging ladder in the embodiment of this application.
[0015] In the picture:
[0016] 1: Scroll; 2: Cover body; 3: Mounting base; 4: Connecting rod; 5: Support rod; 6: Hanging ladder; 61: Horizontal axis; 62: Vertical axis. Detailed Implementation
[0017] The technical solutions in the embodiments of the application will now be clearly and completely described with reference to the accompanying drawings. Furthermore, the phrases "in one embodiment" or "in one embodiment" appearing throughout this specification do not necessarily refer to the same embodiment. Moreover, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.
[0018] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or terminal device that includes that element.
[0019] A liquid trench is an underground channel in a chemical production plant used to transport liquids. It is typically used to remove treated neutralized liquids, which can be directly discharged into the environment, from the production area and into a storage tank for the neutralized liquid. Over time, sediment may accumulate inside the trench, requiring regular cleaning. During cleaning, operators or cleaning equipment need to enter the trench through an inspection port. This inspection port needs to be covered to facilitate opening and closing of the trench and to allow for monitoring of environmental parameters within the trench. Existing trench covers are generally made of cement slabs directly embedded in the inspection port. However, this type of cover has problems including inconvenience in opening and insufficient hydrophobicity. Therefore, this invention provides a device for covering liquid trenches to solve the problem of inconvenient opening of the cover.
[0020] Reference Figure 1 and Figure 2 As shown, the device for covering liquid channels provided by this utility model includes a roller 1 and a drive motor mounted on the roller 1. A covering body 2 is wound around the roller 1. Mounting seats 3 are provided at both ends and in the middle of the roller 1. The mounting seats 3 at both ends include a rotating shaft. The free ends of two support rods 5, which are hinged at one end, are respectively sleeved with the rotating shaft and connected to the end of a connecting rod 4 arranged parallel to the roller 1. The covering body 2 is connected to the connecting rod 4. The drive motor controls the roller 1 to rotate so that the connecting rod 4 moves closer to or away from the roller 1. A portion of the support rod 5 is provided with a protrusion protruding from the surface of the support rod 5.
[0021] like Figure 1 The diagram shown illustrates the usage state of the device provided in this embodiment. When it is necessary to cover the liquid channel, the mounting base 3 is fixed to the ground next to the liquid channel. Then, the drive motor is controlled to drive the roller 1 to rotate. The rotating roller 1 causes a section of support rod 5 near the roller 1 to rotate around its fixed position on the mounting base 3. That is, the angle between the support rod 5 and the rotating shaft gradually increases from parallel or at a small angle to perpendicular to the roller 1, at which point the support rod 5 reaches its maximum support range. In this embodiment, as the covering body 2 is output from the roller 1, the angle between the two hinged support rods 5 gradually increases from 0°, slowly covering the surface of the liquid channel with the covering body 2. Similarly, to remove the cover from the liquid channel, the covering body 2 is simply retracted back into the roller 1. The structure that transforms the axial rotation of the roller 1 into the angle change of the support rod 5 in the horizontal plane can be found in existing structures, and this embodiment does not specifically limit it.
[0022] It should be noted that in this embodiment, a portion of the support rod 5 has a convex bulge. This bulge lifts the cover body 2, creating multiple raised points within the area covered by the cover body 2. These raised points cause water falling onto the cover body 2 to pool below the raised points, thereby increasing the hydrophobicity of the cover body 2. Furthermore, there are multiple convex bulges, and their sizes increase in a direction close to the center of the roll 1. Multiple convex bulges of different sizes can form a gradient, which is beneficial for improving hydrophobicity. Specifically, the position of the convex bulges and their specific gradient can be adjusted according to the actual location of the water outlet; this embodiment does not impose specific limitations on this.
[0023] In summary, this invention not only achieves automatic covering and automatic uncovering of the liquid channel, but also improves the practicality of the liquid channel covering device, and effectively enhances the hydrophobicity of the device.
[0024] It should be noted that the surface of the aforementioned cover body 2 includes a waterproof layer or a hydrophobic oil film layer, which is made of waterproof cloth or interconnected rolls. The waterproof layer or hydrophobic oil film on the cover body 2 increases its hydrophobicity and prevents it from being corroded by acidic rainwater.
[0025] Additionally, a rain collection trough is included, one end of which is connected to the mounting base 3, and its extension direction intersects the vertical direction. An inclined rain collection trough is provided at the edge of the side of the cover body 2 to drain water from the cover body 2, reducing its surface pressure. The end face of this rain collection trough is not perpendicularly connected to the mounting base 3; instead, the rain collection trough slopes downwards, allowing rainwater falling into it to be drained along the inclined direction. Specifically, this rain collection trough can be made by cutting a PVC pipe into two semi-circular tubes, attaching an end cap to one end of each semi-circular tube and connecting it to the mounting base 3.
[0026] In some embodiments, the present invention further includes a ladder 6, and the mounting bases 3 located at both ends of the scroll 1 also include hooks, with the top end of the ladder 6 ready to be hooked onto the hooks. The ladder 6 is used to attach to the inner wall of the inspection port or the side wall of the liquid trench, facilitating operators to enter the liquid trench along the ladder 6 to perform cleaning operations.
[0027] Among them, such as Figure 2As shown, the aforementioned hanging ladder 6 may include several interconnected connecting units. Each connecting unit includes a horizontal shaft 61 and streamlined vertical shafts 62 hinged to both ends of the horizontal shaft 61. The vertical shafts 62 of adjacent connecting units are hinged together. Adjacent connecting units can be connected by bolts. The vertical shafts 62 are configured with an arc-shaped structure, which can accommodate uneven or protruding areas on the sidewalls of inspection ports or liquid channels, increasing the stability of the hanging ladder 6 on uneven surfaces. Furthermore, to reduce the contact surface area between the operator's shoe sole and the surface of the connecting unit, the horizontal shaft 61 can be a square tube, and the vertical shaft 62 can be a round tube.
[0028] Finally, the device for covering liquid channels disclosed in this utility model includes a roller 1 and a drive motor mounted on the roller 1. A covering body 2 is wound around the roller 1. Mounting seats 3 are provided at both ends and in the middle of the roller 1. The mounting seats 3 at both ends include a rotating shaft. The free ends of two support rods 5, which are hinged at one end, are respectively sleeved with the rotating shaft and connected to both ends of a connecting rod 4 arranged parallel to the roller 1. The covering body 2 is connected to the connecting rod 4. The drive motor controls the rotation of the roller 1 to make the connecting rod 4 move closer to or away from the roller 1. A portion of the support rod 5 has a protrusion protruding from the surface of the support rod 5. This utility model not only improves the practicality of the liquid channel covering device, but also effectively improves the hydrophobicity of the device.
[0029] It should be noted that all the above embodiments belong to the same inventive concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not exhaustive, please refer to the description in other embodiments. The embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the embodiments can be referred to mutually.
[0030] The above embodiments merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A device for covering a liquid channel, comprising a spool and a drive motor mounted on the spool (1), characterized in that, The scroll (1) is wound with a cover body (2), and the scroll (1) is provided with mounting seats (3) at both ends and in the middle. The mounting seats (3) at both ends include a rotating shaft. The free ends of two support rods (5) hinged at one end are respectively sleeved with the rotating shaft and connected to the end of the connecting rod (4) arranged parallel to the scroll (1). The cover body (2) is connected to the connecting rod (4). The drive motor controls the scroll (1) to rotate so that the connecting rod (4) moves closer to or away from the scroll (1). The support rod (5) is provided with a protrusion protruding from the surface of the support rod (5).
2. The device for covering a liquid trench according to claim 1, characterized in that, The surface of the cover body (2) includes a waterproof layer or a hydrophobic oil film layer.
3. The device for covering a liquid trench according to claim 2, characterized in that, It also includes a rain collection trough, one end of which is connected to the mounting base (3), and its extension direction intersects the vertical direction.
4. The device for covering a liquid trench according to claim 2, characterized in that, It also includes a hanging ladder (6), and the mounting base (3) located at both ends of the scroll (1) also includes hooks, and the top of the hanging ladder (6) is ready to be hooked to the hooks.
5. The device for covering a liquid trench according to claim 4, characterized in that, The hanging ladder (6) includes several interconnected connecting units. Each connecting unit includes a horizontal shaft (61) and a streamlined vertical shaft (62) hinged to both ends of the horizontal shaft (61). The vertical shafts (62) of adjacent connecting units are hinged to each other.
6. The device for covering a liquid trench according to claim 1, characterized in that, The covering body (2) is made of waterproof cloth or interconnected rolls.
7. The device for covering a liquid trench according to claim 2, characterized in that, The convex hulls include a plurality of convex hulls, the size of which increases along a direction close to the center of the reel (1).