Layered local detachable cover plate for roadside tree pool
By designing a layered, partially disassembled tree pit cover structure, the problem of damage to tree pit covers caused by heavy pressure and repeated rolling was solved. This allowed for the partial replacement of damaged parts, reducing maintenance difficulty and cost, while maintaining the overall structure's compressive strength and drainage performance.
Patent Information
- Application Number
- CN202520374913.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing tree pit covers are prone to damage from heavy pressure and repeated crushing after long-term use, resulting in high maintenance difficulty and cost, and the overall replacement method increases the safety hazards for pedestrians.
Design a layered, partially removable cover plate, including a bottom plate and multiple top shells, the top shells being detachably connected to the bottom plate to form a composite cover plate structure, allowing partial replacement of damaged top shells, and a permeable gap between the bottom plate and the top shells to maintain drainage performance.
It enables partial disassembly and replacement of damaged parts of the top shell, reducing maintenance difficulty and cost, while maintaining the overall structure's compressive strength and drainage function.
Smart Images

Figure CN223837845U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a layered, partially removable cover plate for roadside tree pits, belonging to the field of municipal technology. Background Technology
[0002] Tree covers, also known as tree pit covers, tree guards, or tree surrounds, are mainly used in the tree pits of landscaping trees along streets to prevent soil erosion and beautify the environment. The main body of a tree cover typically consists of two or four symmetrical panels joined together. A tree hole is located in the center of the cover to allow the tree to grow. Multiple drainage holes are located around the tree hole to facilitate rainwater infiltration and drainage, keeping the tree pit dry and well-ventilated.
[0003] Tree pit covers are widely used for tree protection in urban greening, parks, streets, and residential areas. They not only help prevent soil erosion and protect tree roots, but also beautify the environment and enhance the city's image. Furthermore, in special situations such as flammable and explosive environments, tree pit covers with anti-slip surfaces and no sparks can increase safety. Tree pit covers balance the smoothness of adjacent road surfaces with their soil-stabilizing and erosion-preventing properties. However, after long-term use, some new problems have arisen that have not yet been resolved, specifically:
[0004] Because tree pit covers also form part of the roadside road during use, creating a smooth surface with the pedestrian walkway, when goods transport vehicles, electric vehicles, maintenance and cleaning vehicles, construction and renovation equipment, and other temporary parking vehicles park on the roadside, temporary parking loads and repeated crushing inevitably occur. This directly leads to damage to the tree pit covers, such as breakage, shattering, or other forms and degrees of damage. Currently, tree pit covers have relatively weak compressive strength, and damage often occurs to the top or surface structure, making replacement difficult and limiting replacement methods. The root cause is... Most tree pit covers are assembled sequentially from bottom to top, making it difficult to disassemble them directly from the damaged top position. Complete disassembly is required, and after disassembly, there are no corresponding replacement parts for the damaged area; only the entire component at the damaged location can be replaced. Many tree pit covers are also one-piece structures, requiring complete replacement after damage. All of these situations increase maintenance difficulty and cost. There is no corresponding solution; for road sections where tree pit cover damage is frequent, only periodic replacement is possible. Before the replacement period expires, the damaged area affects the overall appearance of the road surface, and the damaged area is prone to collapse, posing a safety hazard to pedestrians. Utility Model Content
[0005] To address the problems mentioned in the background section, the purpose of this utility model is to provide a layered, partially removable cover for roadside tree pits.
[0006] A layered, partially detachable cover for roadside tree pits includes a base plate and multiple top shells. The base plate is horizontally positioned, with a central hole machined along its thickness in the middle. Multiple top shells are arranged sequentially on the base plate along the circumferential direction of the central hole. Multiple connecting parts are provided on the top surface of the base plate, with each top shell corresponding to one connecting part. The bottom of each top shell is detachably connected to the base plate via the connecting part. A first permeation gap is formed between one end of each top shell and one end of its adjacent top shell, and a second permeation gap is formed between the other end of each top shell and one end of its adjacent top shell. The first and second permeation gaps are respectively connected to the central hole.
[0007] As a preferred embodiment: each top shell is a right-angled trapezoidal shell, the top shell includes an upper plate, a right-angled trapezoidal frame and a lower plate. The right-angled trapezoidal frame is horizontally arranged, the top of the right-angled trapezoidal frame is integrally connected to the upper plate, the bottom of the right-angled trapezoidal frame is integrally connected to the lower plate, and a cavity is formed between the upper plate, the right-angled trapezoidal frame and the lower plate. The right-angled trapezoidal frame is machined with an elongated hole along its thickness direction that communicates with the cavity.
[0008] As a preferred embodiment: when the top shell is detachably connected to the base plate, the bottom of the top shell is flush against the top surface of the base plate.
[0009] As a preferred option, a padding layer is detachably connected inside the cavity.
[0010] As a preferred embodiment: the bottom of each top shell is machined with a plug-in part that mates with the connecting part. When the connecting part is an outwardly protruding column integrally connected to the top surface of the bottom plate, the plug-in part is a connecting hole machined along the thickness direction of the lower plate, and the connecting hole and its corresponding outwardly protruding column are detachably connected. When the connecting part is an outwardly protruding strip-shaped prism integrally connected to the top surface of the bottom plate, the plug-in part is a strip-shaped groove machined along the length direction of the lower plate, and the strip-shaped groove and its corresponding outwardly protruding strip-shaped prism are detachably connected.
[0011] As a preferred embodiment: the protruding column includes a support column and a flexible rubber head. The support column is vertically mounted on the base plate, with its lower end fixedly connected to the base plate. The upper end of the support column is provided with a flexible rubber head, which is inserted into the connection hole.
[0012] As a preferred embodiment, the base plate is machined with drainage gaps along its thickness direction, and the drainage gaps are respectively connected to the first infiltration gap and / or the second infiltration gap that are adjacent to it.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This utility model is a tree pit cover that allows for partial disassembly at the top. It is a composite cover formed by a base plate and multiple top shells arranged from bottom to top. While maintaining the basic performance of the tree pit cover, it also enhances its compressive strength and self-repairing capabilities. The multiple top shells are not directly connected; each top shell is independently connected to the base plate. When one or more top shells are damaged or broken to varying degrees, only the corresponding top shell needs to be replaced. Other undamaged parts do not need to be changed. The replacement process is top-mounted, simplifying repair, reducing maintenance costs, and eliminating the need for complete replacement. Attached Figure Description
[0015] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.
[0016] Figure 1 This is a top view of the structure of this utility model;
[0017] Figure 2 This is a top view of the structure of the present invention when disassembling part of the top shell. The part of the top shell missing in the figure is the part of the bottom plate exposed after the damaged top shell has been disassembled.
[0018] Figure 3 This is a side view of the base plate and connecting parts; only part of the base plate length is shown in the figure.
[0019] Figure 4 This is a top view of the connection between the base plate and the connecting part, which consists of multiple outwardly protruding cylinders;
[0020] Figure 5 This is a schematic diagram of the main structure of the top shell;
[0021] Figure 6 This is a schematic diagram of the first three-dimensional structure of the top shell.
[0022] Figure 7 This is a schematic diagram of the second three-dimensional structure of the top shell;
[0023] Figure 8 This is a schematic diagram of the third three-dimensional structure of the top shell;
[0024] Figure 9 This is a top view of the connection between the base plate and the connecting part, which consists of multiple outwardly convex strip-shaped prisms.
[0025] Figure 10 This is a three-dimensional structural diagram of the top shell when the connecting part is an outwardly convex strip-shaped prism;
[0026] Figure 11This is a top view of the structure of the present invention in use.
[0027] Figure 12 This is a side view sectional structural diagram of the present invention in use.
[0028] In the diagram: 1-Base plate; 1-1-Central hole; 2-Top shell; 2-1 Upper plate; 2-2 Right-angled trapezoidal frame; 2-3 Lower plate; 3-Connecting part; 3-1-Outwardly protruding column; 3-1-1-Supporting column; 3-1-2-Flexible rubber head; 3-2-Outwardly protruding strip-shaped prism; 4-First permeation gap; 5-Second permeation gap; 6-Cavity; 7-Elongated hole; 8-Bedding layer; 9-Insertion part; 9-1-Connecting hole; 9-2-Strip groove; 10-Tree; 11-Road brick. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. The structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0030] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.
[0031] Specific implementation method one: Combining Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12This embodiment describes a partially detachable tree pit cover for roadside use, comprising a base plate 1 and multiple top shells 2. The base plate 1 is made of steel and serves to support the overall structure at its base. The base plate 1 is horizontally positioned, buried 30 to 50 centimeters below ground level, with the specific depth selected according to design requirements. A central hole 1-1 is machined along the thickness direction in the center of the base plate 1. The size of the central hole 1-1 is determined according to specific design requirements, primarily being square or circular, to facilitate the fit of the inner shape of the top shells 2. When the central hole 1-1 is square, the multiple top shells 2 are arranged sequentially on the base plate 1 around the central hole 1-1; when the central hole 1-1 is circular... When the hole is formed, multiple top shells 2 are arranged sequentially on the base plate 1 along the circumferential direction of the central hole 1-1. The inner side of the top shell 2 does not overlap with the central hole 1-1, exposing the planting position of the tree 10. Multiple connecting parts 3 are provided on the top surface of the base plate 1, and each top shell 2 is provided with a corresponding connecting part 3. The bottom of each top shell 2 is detachably connected to the base plate 1 through the connecting part 3. A first permeation gap 4 is formed between one end of each top shell 2 and one end of its adjacent top shell 2, and a second permeation gap 5 is formed between the other end of each top shell 2 and one end of its adjacent top shell 2. The first permeation gap 4 and the second permeation gap 5 are respectively connected to the central hole 1-1. The first permeation gap 4 and the second permeation gap 5 are used to achieve the permeation effect around the tree 10. The arrangement of multiple first permeation gaps 4 and second permeation gaps 5 is conducive to forming a uniform water permeability and drainage effect around the tree 10.
[0032] The partially removable tree pit cover in this embodiment can be installed in road sections prone to heavy pressure or repeated high-frequency rolling, reducing the difficulty of replacing the tree pit cover and saving maintenance costs. The partially removable tree pit cover for roadside use has no limitations on the type of tree 10 and is suitable for different types of trees 10. It also has no impact on the paving bricks 11; when the paving bricks 11 are not damaged, it is not necessary to remove the paving bricks 11 surrounding the top shell 2 when disassembling the top shell 2.
[0033] Furthermore, the base plate 1 is made of steel, serving as a reinforcement and support at the bottom. Multiple top shells 2 can be independently disassembled from the base plate 1, reducing the direct connection process between them and facilitating partial disassembly and replacement. The top shells 2 are hollow shells, and different layers can be filled or configured according to different design requirements to achieve compressive resistance to different loads.
[0034] In this embodiment, the base plate 1 is machined with drainage gaps along its thickness direction. The drainage gaps are respectively connected to the first infiltration gap 4 and / or the second infiltration gap 5 that are close to it, in order to help improve the drainage performance of the overall structure of this utility model.
[0035] Specific Implementation Method Two: This implementation method is a further limitation of Specific Implementation Method One. In this implementation method, the configuration shape of the top shell 2 can be determined according to specific design requirements. The optimal shape is trapezoidal or straight. The trapezoidal shape has obvious advantages, as it can form a rectangular tree pit cover according to municipal requirements. The trapezoidal top shell 2 can fully fill and cover the local corner positions, saving on the types of top splicing components. It can form a universal splicing process of a structural form, requiring only eight units. The specific structural form of the top shell 2 is as follows: each top shell 2 is a right-angled trapezoidal shell. The top shell 2 includes an upper plate 2-1, a right-angled trapezoidal frame 2-2, and a lower plate 2-3. The upper plate 2-1, the right-angled trapezoidal frame 2-2, and the lower plate 2-3... Both the upper plate 2-2 and the lower plate 2-3 are made of steel plates to improve compressive strength. The right-angled trapezoidal frame 2-2 is a frame structure in the form of a right-angled trapezoid formed by welding three strip steel plates in sequence. All positions are at the same height. The right-angled trapezoidal frame 2-2 is set horizontally. The top of the right-angled trapezoidal frame 2-2 is integrally connected to the upper plate 2-1, and the bottom of the right-angled trapezoidal frame 2-2 is integrally connected to the lower plate 2-3. The upper plate 2-1, the right-angled trapezoidal frame 2-2 and the lower plate 2-3 enclose a cavity 6. The cavity 6 provides space for subsequent filling and also helps to adjust the weight of the top shell 2. The right-angled trapezoidal frame 2-2 has an elongated hole 7 along its thickness direction that communicates with the cavity 6. The elongated hole 7 provides an entry and exit position for the subsequent filling structure.
[0036] Furthermore, the optimal machining position for the elongated hole 7 is at the steel plate corresponding to the long right-angle side of the right-angled trapezoidal frame 2-2, providing a sufficiently long entry and exit installation position for the subsequent filling structure, which is beneficial for the top shell 2 to be filled by the subsequent filling structure and then installed to the bottom plate 1.
[0037] Specific Implementation Method 3: This implementation method is a further limitation of Specific Implementation Method 1 or 2. In this implementation method, when the top shell 2 is detachably connected to the base plate 1, the bottom of the top shell 2 is closely attached to the top surface of the base plate 1. The top surface of the base plate 1 is the reference position of multiple top shells 2. This setting is conducive to improving the flatness of the overall structure after assembly, forming a standardized and flat installation effect, and ensuring the flatness of the top surface of multiple top shells 2 after installation.
[0038] Specific Implementation Method Four: This implementation method is a further limitation of Specific Implementation Methods One, Two, or Three. A padding layer 8 is detachably connected inside the cavity 6. The padding layer 8 is a post-installed filling structure used to increase the weight of the top shell 2, facilitating the self-adjustment of the compressive strength of the top shell 2 according to different road sections. The padding layer 8 is an inner core structure, and its shape matches the transverse cross-sectional shape of the top shell 2. The height or thickness of the padding layer 8 is less than the height or thickness of the top shell 2.
[0039] Specific Implementation Method Five: This implementation method is a further limitation of Specific Implementation Methods One, Two, Three, or Four, combined with... Figure 2 , Figure 3 , Figure 4 , Figure 8 , Figure 9 and Figure 10 As shown, each top shell 2 has a plug-in part 9 machined at its bottom to mate with the connecting part 3. The plug-in part 9 and the connecting part 3 are configured to enable independent disassembly and connection between each top shell 2 and the bottom plate 1. The connecting part 3 can have various structural forms; the plug-in part 9 simply needs to be configured to correspond to the connecting part 3. Specifically:
[0040] Combination Figure 2 , Figure 3 , Figure 4 and Figure 8 As shown, when the connecting part 3 is an outwardly protruding column 3-1 integrally formed on the top surface of the base plate 1 by welding or other fixing methods, the insertion part 9 is a connecting hole 9-1 formed along the thickness direction of the lower plate 2-3. The connecting hole 9-1 is inserted and connected to its corresponding outwardly protruding column 3-1, which is convenient to disassemble, easy to replace.
[0041] Specifically, when the top shell 2 is a right trapezoid, there are five convex pillars 3-1, which helps to form a uniform and effective fixation for the top shell 2. The number and position of the convex pillars 3-1 can be determined according to the specific shape of the top shell 2.
[0042] Combination Figure 9 and Figure 10 As shown, when the connecting part 3 is an outwardly protruding strip-shaped prism 3-2 integrally connected to the top surface of the base plate 1, the insertion part 9 is a strip-shaped groove 9-2 machined along the length direction of the lower plate 2-3, and the strip-shaped groove 9-2 is detachably connected to its corresponding outwardly protruding strip-shaped prism 3-2. The above-mentioned connection configuration can be selected and manufactured according to different connection requirements and different connection strength requirements between the base plate 1 and the top shell 2.
[0043] Furthermore, the outer wall of the convex strip-shaped prism 3-2 can be wrapped with an elastic rubber layer, which facilitates the connection of the strip-shaped groove 9-2 on the top shell 2 to the convex strip-shaped prism 3-2 by tapping after fastening.
[0044] Specifically, two convex strip-shaped prisms 3-2 can be configured, namely a large square annular convex strip-shaped prism and a small square annular convex strip-shaped prism, which are coaxial. The small square annular convex strip-shaped prism is located inside the large square annular convex strip-shaped prism. Each top shell 2 has two corresponding strip-shaped grooves 9-2 machined on it. Each top shell 2 is simultaneously inserted with the large square annular convex strip-shaped prism and the small square annular convex strip-shaped prism, which is conducive to forming a stable dual-position positioning process for each top shell 2 and improving the self-balancing performance of each top shell 2 after installation.
[0045] Specific Implementation Method Six: This implementation method is a further limitation of Specific Implementation Methods One, Two, Three, Four, or Five. In this implementation method, when the connecting part 3 is an outwardly protruding strip-shaped prism 3-2 integrally connected to the top surface of the base plate 1, and the insertion part 9 is a strip-shaped groove 9-2 formed along the length direction of the lower plate 2-3, in order to further improve the insertion connection strength between the two and avoid displacement and detachment, the structural form of the outwardly protruding column 3-1 is further improved and refined. The outwardly protruding column 3-1 includes a support column 3-1-1 and a flexible rubber head 3-1-2. The support column 3-1-1 is vertically set on the base plate 1, and the lower end of the support column 3-1-1 is fixedly connected to the base plate 1. The upper end of the support column 3-1-1 is provided with a flexible rubber head 3-1-2, and the flexible rubber head 3-1-2 is inserted and connected to the connecting hole 9-1.
[0046] Furthermore, the flexible rubber head 3-1-2 is a hemispherical, spherical, or flattened cylinder with a diameter larger than the inner diameter of the connecting hole 9-1, which facilitates the secondary positioning and snap-fit connection after insertion.
[0047] Specific Implementation Method Seven: This implementation method is a further limitation of Specific Implementation Methods One, Two, Three, Four, Five, or Six. In this implementation method, the top shell 2 is a hollow shell or a solid shell, which can be formed according to different pressure resistance requirements. Different numbers of hollow shells and solid shells can also be selected and installed at corresponding positions in the partially detachable tree pit cover on the same roadside. Hollow shells can be used in areas where the probability of heavy pressure is low, while solid shells can be used in areas where the probability of heavy pressure is high, thereby improving pressure resistance, increasing the frequency of partial replacement of the top shell 2, helping to maintain the pressure resistance and durability of the tree pit cover, and saving maintenance costs.
[0048] The composite arrangement of the bottom plate 1 and the top shell 2 in this utility model also facilitates the formation of multiple top shells 2 to protect the bottom plate 1, thereby improving the durability of the bottom plate 1.
[0049] Working principle:
[0050] After laying the base plate 1 to a predetermined depth below the ground according to the design requirements, multiple top shells 2 are connected one by one to the base plate 1 along the circumferential direction of the central hole 1-1. When the partially detachable tree pit cover on the roadside is damaged or broken due to local heavy pressure or rolling, only one or several top shells 2 corresponding to the damaged or broken area need to be replaced. There is no need to disassemble, change or reinstall the position of the base plate 1, other undamaged top shells 2 and the position of the surrounding road bricks 11.
Claims
1. A layered, partially removable cover for roadside tree pits, characterized in that: The device includes a base plate (1) and multiple top shells (2). The base plate (1) is horizontally arranged. A central hole (1-1) is machined in the middle of the base plate (1) along its thickness direction. Multiple top shells (2) are arranged sequentially on the base plate (1) along the circumferential direction of the central hole (1-1). Multiple connecting parts (3) are provided on the top surface of the base plate (1). Each top shell (2) is provided with a corresponding connecting part (3). The bottom of each top shell (2) is detachably connected to the base plate (1) through the connecting part (3). A first permeation gap (4) is formed between one end of each top shell (2) and one end of an adjacent top shell (2). A second permeation gap (5) is formed between the other end of each top shell (2) and one end of an adjacent top shell (2). The first permeation gap (4) and the second permeation gap (5) are respectively connected to the central hole (1-1).
2. A layered, partially removable cover for roadside tree pits according to claim 1, characterized in that: Each top shell (2) is a right trapezoidal shell. The top shell (2) includes an upper plate (2-1), a right trapezoidal frame (2-2), and a lower plate (2-3). The right trapezoidal frame (2-2) is horizontally arranged. The top of the right trapezoidal frame (2-2) is integrally connected to the upper plate (2-1), and the bottom of the right trapezoidal frame (2-2) is integrally connected to the lower plate (2-3). A cavity (6) is formed between the upper plate (2-1), the right trapezoidal frame (2-2), and the lower plate (2-3). The right trapezoidal frame (2-2) has an elongated hole (7) connected to the cavity (6) along its thickness direction.
3. A layered, partially removable cover for roadside tree pits according to claim 1 or 2, characterized in that: When the top shell (2) is detachably connected to the bottom plate (1), the bottom of the top shell (2) is closely attached to the top surface of the bottom plate (1).
4. A layered, partially removable cover for roadside tree pits according to claim 2, characterized in that: A padding layer (8) is detachably connected inside the cavity (6).
5. A layered, partially removable cover for roadside tree pits according to claim 2, characterized in that: Each top shell (2) has a plug-in part (9) at its bottom that mates with the connecting part (3). When the connecting part (3) is an outwardly protruding column (3-1) integrally connected to the top surface of the bottom plate (1), the plug-in part (9) is a connecting hole (9-1) formed along the thickness direction of the lower plate (2-3), and the connecting hole (9-1) is detachably connected to its corresponding outwardly protruding column (3-1). When the connecting part (3) is an outwardly protruding strip-shaped prism (3-2) integrally connected to the top surface of the bottom plate (1), the plug-in part (9) is a strip-shaped groove (9-2) formed along the length direction of the lower plate (2-3), and the strip-shaped groove (9-2) is detachably connected to its corresponding outwardly protruding strip-shaped prism (3-2).
6. A layered, partially removable cover for roadside tree pits according to claim 5, characterized in that: The protruding column (3-1) includes a support column (3-1-1) and a flexible rubber head (3-1-2). The support column (3-1-1) is vertically mounted on the base plate (1). The lower end of the support column (3-1-1) is fixedly connected to the base plate (1). The upper end of the support column (3-1-1) is provided with a flexible rubber head (3-1-2), which is inserted into the connecting hole (9-1).
7. A layered, partially removable cover for roadside tree pits according to claim 1, 2, 4, 5, or 6, characterized in that: The base plate (1) has drainage gaps along its thickness direction, and the drainage gaps are connected to the first infiltration gap (4) and / or the second infiltration gap (5) that are adjacent to it.