A graded backfill structure for green spaces

Abstract

This utility model belongs to the field of backfill structures and discloses a graded backfill structure for green spaces. It is installed on a ground surface, with a backfill pit on the top surface. A marker assembly includes a marker pole with a marking section and an insertion section. The insertion section is located at the bottom of the marking section, and its outer diameter is smaller than that of the marking section. A connecting hole is provided on the top surface of the marking section. A marking ring is threaded onto the marker pole. A graded backfill layer is placed within the backfill pit. The small-diameter insertion section at the bottom of the marker pole allows it to be inserted into the bottom of the backfill pit for installation and positioning. The upper marker pole can be connected to the lower marker pole through the insertion section and the connecting hole. This allows the overall length of the marker assembly to be adjusted according to the height of the restored slope and the depth of the backfill pit, enabling the marker pole to be assembled and used according to different needs. Compared to marker poles of fixed length, this design offers greater flexibility, versatility, and applicability.

Description

Technical Field

[0001] This utility model belongs to the field of backfill structure technology, specifically relating to a graded backfill structure for green spaces. Background Technology

[0002] In construction, some sites with gentle slopes (where the land is designed for greening) are often temporarily used as material storage areas by excavation and leveling. After the surrounding areas are completed, the original site is backfilled in stages to restore the gentle slope. Tree pits are dug at the locations where trees need to be planted, and supports are set up around them so that trees can be planted directly during greening construction, reducing the need for secondary excavation.

[0003] Currently, backfilling construction primarily relies on levels or markers to indicate the backfill height. However, using levels to measure elevations and mark points is cumbersome and inconvenient for height adjustment, hindering construction progress. As for markers, their application on sloping surfaces is limited by varying marker lengths required at different locations; existing markers are typically of fixed length, making them less versatile and impractical. Utility Model Content

[0004] The present invention aims to provide a graded backfill structure for green spaces to solve the problem mentioned above where the fixed length of existing markers leads to poor applicability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a graded backfill structure for green spaces, installed on the ground surface, with a backfill pit formed on the top surface of the ground surface, the top surface of one end of the backfill pit being higher than the top surface of the other end of the backfill pit, including...

[0006] The marker assembly includes multiple markers that are spliced ​​together in sequence. Each marker has a marking section and an insertion section. The insertion section is located on the bottom surface of the marking section, and the outer diameter of the insertion section is smaller than the outer diameter of the marking section. A connection hole is provided on the top surface of the marking section. The insertion section of an adjacent marker is threaded into the connection hole of another marker. The insertion section of the bottom marker is inserted into the bottom surface of the backfill pit.

[0007] Marker ring, threadedly fitted onto the elevation rod;

[0008] A graded backfill layer is set inside the backfill pit.

[0009] The principle and effects of this technical solution:

[0010] 1. By setting a small-diameter insertion section at the bottom of the elevation bar, the lower insertion section can be inserted into the bottom of the backfill pit for installation and positioning. The upper elevation bar can be connected to the lower elevation bar through the connection hole of the insertion section. Thus, the overall length of the elevation bar assembly can be adjusted according to the height of the restored slope and the depth of the backfill pit, so that the elevation bar can be assembled and used according to the usage. Compared with the fixed length elevation bar, it is more flexible and versatile, and has stronger versatility and applicability.

[0011] 2. The setting of the marker ring allows the height of the marker ring to be adjusted according to the backfill height of the graded backfill layer after the marker assembly is installed in the backfill pit. After the adjustment is completed, the graded backfill layer is backfilled and laid. Thus, the backfill thickness of the graded backfill layer can be determined by the height of the marker ring, making observation intuitive and convenient.

[0012] 3. By setting up graded backfilling, the stability of the green area after backfilling is improved. In addition, the setting of the elevation bar being larger at the top and smaller at the bottom ensures that when the elevation bar is retrieved after the graded backfill layer is laid, the piercing section will not excessively hinder the removal of the elevation bar.

[0013] The present invention is further configured to include a lifting head, the bottom surface of which is fixed with a connecting rod, the connecting rod being threaded into the connecting hole of the topmost elevation rod, and multiple handles being fixed at circumferential intervals on the lifting head.

[0014] The principle and effect of this technical solution: By setting up the lifting head, connecting rod and handle, after the graded backfill layer is set up, the user can lift the entire marker assembly by using the handle and lifting head, so that the entire marker assembly has a point of force for the user to apply force, making it easy to remove the marker assembly. In addition, the setting of threaded insertion of the connecting rod and the connecting hole allows the lifting head to be installed and connected after the marker assembly is installed, making it more flexible to use.

[0015] The present invention is further configured such that: the graded backfill layer is a stepped backfill layer, the stepped backfill layer is set on the bottom surface of the backfill pit, the stepped backfill layer has multiple stepped corners, and a marker component is set at each of the multiple stepped corners.

[0016] The principle and effect of this technical solution: Since the original surface of the greening site is sloping, the depth of the backfill pit varies at different horizontal positions. The stepped backfill layer allows for backfilling according to the different depths of the backfill pit, ensuring a stable backfill section at the bottom. Furthermore, the stepped backfill layer reduces the height of its top surface from the original top surface of the greening site. When subsequent backfill soil is poured onto the stepped backfill layer of the backfill pit, the upper backfill soil is supported by the lower stepped backfill layer and is less prone to collapse, resulting in strong stability.

[0017] The present invention is further configured to include an isolation bucket, which is installed on the stepped backfill layer.

[0018] The principle and effect of this technical solution: The setting of the isolation bucket allows for the pre-reservation of the isolation bucket pits when backfilling the soil laid on the stepped backfill layer, which facilitates the direct placement of green trees without the need for secondary excavation, making construction simpler and more convenient.

[0019] The present invention is further configured such that: the isolation bucket includes two symmetrically distributed half-bucket walls, and the two half-bucket walls are detachably connected.

[0020] The principle and effect of this technical solution: By setting the isolation bucket as two detachable half-bucket walls, it occupies less space when carried and stored, and can be carried and stored by stacking.

[0021] The present invention is further configured such that a semi-circular plate is rotatably mounted on the wall of the semi-bucket.

[0022] The principle and effect of this technical solution: The semi-circular plate can cover the top of the semi-bucket wall, so that when backfilling soil and rock above the stepped backfill layer, it is not necessary to backfill into the isolation bucket.

[0023] The present invention is further characterized in that the outer wall of the elevation rod has graduations.

[0024] The principle and effect of this technical solution: By using the scale of the elevation rod, the position of the top surface of the stepped backfill layer can be better determined, and the height of the marker ring can be adjusted. Attached Figure Description

[0025] Figure 1 This is the front view of the present invention;

[0026] Figure 2 for Figure 1 An exploded, enlarged isometric view of the benchmark component.

[0027] Figure 3 for Figure 1 Enlarged view of the structure at the central isolation barrel;

[0028] Figure 4 for Figure 3 Axonometric structural diagram of the central isolation barrel (semicircular plate omitted). Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0030] The reference numerals in the accompanying drawings include:

[0031] 110. Ground surface; 111. Backfill pit;

[0032] 210. Elevation bar; 211. Marker section; 212. Insertion section; 213. Connecting hole;

[0033] 310. Identification ring;

[0034] 410. Lifting head; 411. Connecting rod; 412. Handle;

[0035] 510. Stepped backfill layer; 511. Stepped corner; 520. Topsoil layer;

[0036] 610. Isolation barrel; 611. Half barrel wall; 612. Semicircular plate.

[0037] Example:

[0038] As attached Figure 1-4 As shown, this utility model discloses a graded backfilling structure for green spaces, which is set on the ground body 110. The green space after the ground body 110 is restored is an inclined surface. A backfilling pit 111 is opened on the top surface of the ground body 110. Both ends of the backfilling pit 111 are lower than the top surface of the ground body 110, and the top surface of one end of the backfilling pit 111 is higher than the top surface of the other end of the backfilling pit 111. The scheme also includes a marker assembly, a marker ring 310, and a graded backfilling layer.

[0039] Among them, the graded backfill layer is a stepped backfill layer 510. The stepped backfill layer 510 is set on the bottom surface of the backfill pit 111, and the direction of the decrease in height of the stepped backfill layer 510 corresponds to the direction of the inclined surface. The stepped backfill layer 510 has multiple stepped corners 511, and each of the multiple stepped corners 511 is equipped with a marker component.

[0040] The marker assembly includes multiple elevation markers 210 connected sequentially. Each elevation marker 210 has a marking section 211 and an insertion section 212. The insertion section 212 is located on the bottom surface of the marking section 211, and its outer diameter is smaller than that of the marking section 211. A connecting hole 213 is provided on the top surface of the marking section 211. The insertion section 212 of an adjacent elevation marker 210 is threaded into the connecting hole 213 of another elevation marker 210. The insertion section 212 of the bottommost elevation marker 210... 2. Insert it into the bottom surface of the backfill pit 111; adjust the number of elevation rods 210 required in each elevation rod assembly according to the usage position of the elevation rod assembly, so that the top surface of the elevation rod assembly and the elevation rod 210 is above the inclined surface after backfilling; adjust the position of the marking ring 310 relative to the elevation rod 210 according to the height of the required stepped backfill layer 510; the marking ring 310 is threadedly engaged with the elevation rod 210; the marking ring 310 can be rotated to move up and down along the elevation rod 210.

[0041] A lifting head 410 is installed on the top of the top elevation bar 210. A connecting rod 411 is fixed on the bottom surface of the lifting head 410. The connecting rod 411 is threaded into the connecting hole 213 of the top elevation bar 210. Multiple handles 412 are fixed at circumferential intervals around the lifting head 410.

[0042] It also includes an isolation bucket 610, which is installed on the stepped backfill layer 510. The isolation bucket 610 includes two symmetrically distributed half-bucket walls 611, which are detachably connected (details are shown in the attached document). Figure 4 As shown, a groove is provided at the end of the half-bucket wall 611. A connecting plate is rotatably installed in the groove of one half-bucket wall 611. The connecting plate can be placed in the groove of the other half-bucket wall 611. A connector is installed on the connecting plate. The connecting plate and the groove are connected by the connector. The surface of the semi-circular plate 612 has a relief groove corresponding to the connector. (This is only an example and is not a limitation on the protection scope. Other structures that can be disassembled and connected without hindering the detachment of the isolation barrel 610 can also be applied.) The semi-circular plate 612 is rotatably installed on the half-bucket wall 611. The outer wall of the elevation rod 210 has a scale.

[0043] In use, firstly, several marker components are arranged at intervals within the backfill pit 111, with the height of the marker components determined by the depth of the backfill pit 111. Then, marker rings 310 are set according to the height of the stepped backfill layer 510. Based on the position of the marker rings 310, soil is pre-backfilled to set up the stepped backfill layer 510. After the stepped backfill layer 510 is set up and stabilized, it can support and stabilize the sloping overburden layer 520 above, making it less likely for the overburden above the stepped backfill layer 510 to tilt and collapse. After the backfill layer 510 is set, the marker assembly is taken out as a whole by lifting head 410 and handle 412. Then, isolation buckets 610 are set in the stepped backfill layer 510 according to the tree planting position. Then, soil is covered to form an inclined soil covering layer 520 (i.e., green area). After the soil covering is completed, the isolation buckets 610 are taken out and trees are planted in the area isolated by the isolation buckets 610. There is no need to dig a second pit. When the soil covering layer 520 is set, the holes of the marker assembly can also be filled.

[0044] The detachable design of the benchmark components allows for minimal bulk carrying and the length can be adjusted to suit various needs, making it more flexible and versatile in use.

[0045] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0046] Among them, insert and sliding insert are mating bodies with holes, the cross section of the shaft or rod matches the hole, and the shaft or rod can slide relative to the hole. Threaded insert is a hole with threads, the shaft or rod is threaded, and the shaft or rod is connected to the mating body by screwing. Detachable installation can be by bolt thread connection or bolt and nut connection, etc., depending on what can be actually achieved.

[0047] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A graded backfill structure for green spaces, disposed on a ground surface, wherein a backfill pit is formed on the top surface of the ground surface, and the top surface of one end of the backfill pit is higher than the top surface of the other end of the backfill pit, characterized in that: include The marker assembly includes multiple markers spliced ​​together in sequence. Each marker has a marking section and an insertion section. The insertion section is located on the bottom surface of the marking section, and the outer diameter of the insertion section is smaller than the outer diameter of the marking section. A connecting hole is provided on the top surface of the marking section. The insertion section of an adjacent marker is threaded into the connecting hole of another marker. The insertion section of the bottommost marker is inserted into the bottom surface of the backfill pit. A marker ring, threadedly fitted onto the elevation rod; A graded backfill layer is set within the backfill pit.

2. A terraced backfill structure for greenfield sites according to claim 1, wherein: It also includes a lifting head, the bottom surface of which is fixed with a connecting rod. The connecting rod is threaded into the connecting hole of the topmost elevation rod. The lifting head has multiple handles fixed at circumferential intervals.

3. A terraced backfill structure for greenfield sites according to claim 1, wherein: The graded backfill layer is a stepped backfill layer, which is set on the bottom surface of the backfill pit. The stepped backfill layer has multiple stepped corners, and the benchmark component is set at each of the multiple stepped corners.

4. A terraced backfill structure for greenfield sites according to claim 3 wherein: It also includes isolation buckets, which are installed on the stepped backfill layer.

5. A terraced backfill structure for greenfield sites according to claim 4 wherein: The isolation bucket includes two symmetrically distributed half-bucket walls, which are detachably connected.

6. A terraced backfill structure for greenfield sites as claimed in claim 5 wherein: A semi-circular plate is rotatably mounted on the wall of the semi-bucket.

7. A terraced backfill structure for greenfield sites according to claim 4, wherein: The outer wall of the elevation rod has graduations.

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