Leveling device for cushion construction
By designing a leveling device that includes a base, uprights, and limiting rods, the problem of ensuring flatness and slope during subgrade construction was solved, achieving efficient and precise subgrade construction results.
Patent Information
- Application Number
- CN202520343293.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-28
AI Technical Summary
When constructing existing subbases, it is difficult to guarantee the flatness and slope requirements, and the leveling process is complicated, and the pre-embedded nails cannot be removed.
A leveling device for subgrade construction was designed, including a base, uprights, limit rods, and a level assembly. By adjusting the bolts, holes, and reference components, the device can achieve precise leveling and slope adjustment of the subgrade.
It improves the accuracy and efficiency of subgrade construction, ensures that the surface flatness and slope of the subgrade meet the design requirements, and has a simple structure that is easy to operate.
Smart Images

Figure CN223937581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building interior subbase construction technology, and more specifically, to a leveling device for subbase construction. Background Technology
[0002] After the underfloor heating pipes are laid, and before the floor tiles are laid, a subfloor layer needs to be constructed on the interior floor. The subfloor layer can protect the underfloor heating pipes and also helps with the subsequent floor tile laying. Of course, some buildings do not have underfloor heating, and the floor tiles can be laid directly after the subfloor layer is completed.
[0003] Currently, during the construction of the subgrade, workers use chalk lines on the building walls to mark the position of the subgrade surface in advance. Then, they use a concrete truck to pour concrete onto the indoor floor and use shovels, trowels, and plate vibrators to flatten the subgrade. However, relying solely on the height lines on the walls cannot guarantee the flatness and slope requirements of the subgrade. Some workers nail nails or insert wooden wedges into the ground. When laying the subgrade, the concrete is flush with the top of the wooden wedges or nails. Subgrades constructed using this method cannot meet the design requirements for flatness and slope. Furthermore, the initial leveling process is complicated, and the aforementioned wooden wedges and nails are pre-embedded in the subgrade and cannot be removed. Utility Model Content
[0004] In view of this, the present invention proposes a leveling device for subbase construction, comprising:
[0005] Base;
[0006] The upright pole includes a standard pole and an adjusting pole. The standard pole is vertically mounted on the base, and the adjusting pole is mounted on the standard pole and its height is adjustable. A level assembly is provided on the standard pole near the base, which can divide the standard pole into upper and lower sections. The level assembly can adjust the verticality of the upright pole.
[0007] The limiting rod includes multiple rods, which are vertically connected to the standard rod via a mounting block. The mounting block is sleeved on the standard rod and can move up and down along the standard rod. The mounting block is located below the level assembly. The multiple limiting rods are sequentially and detachably connected to the limiting block. Multiple reference members are sequentially and vertically arranged on the limiting rod along its length. The reference members are screwed onto the limiting rod and can abut against the ground.
[0008] Furthermore, a plurality of adjusting bolts are arranged around the periphery of the base. The adjusting bolts are screwed through and connected to the base. By screwing the adjusting bolts to make them abut against the ground, the contact angle between the base and the ground can be adjusted, thereby keeping the level assembly horizontal and adjusting the verticality of the pole.
[0009] Furthermore, the portion of the standard rod between the level assembly and the base is provided with scale lines, which can position the height of the mounting block sleeved on it, thereby achieving height positioning of the limiting rod.
[0010] Furthermore, the mounting block is provided with multiple insertion holes, and the first end of the limiting rod is provided with a vertical insertion rod, which can be inserted into the insertion hole. The outer wall of the insertion hole is also provided with a first tightening bolt, which can penetrate the outer wall of the insertion hole vertically and be screwed into the insertion hole to tighten the insertion rod inserted into the insertion hole. The insertion hole is a circular hole, and the insertion rod is a circular rod, so that the position of the limiting rod when connected can be adjusted so that the multiple limiting rods present different included angles.
[0011] Furthermore, the mounting block is also equipped with a second tightening bolt, which can vertically penetrate the side wall of the mounting block and abut against the standard rod, thereby tightening the mounting block.
[0012] Furthermore, the limiting rod includes a rod one and a rod two. The first end of the rod one is connected to the mounting block, and the second end of the rod one is provided with a connecting cylinder. The first end of the rod two can pass through the connecting cylinder and slide along the connecting cylinder, thereby adjusting the overall length of the limiting rod. The rod one is provided with a sliding groove along its length direction, and a slider is provided on one side of the first end of the rod two. The slider can be locked in the sliding groove and can slide along the sliding groove. When the rod two slides towards the first end of the rod one in the connecting cylinder, the slider slides along the sliding groove, and the rod two slides against the side of the rod one.
[0013] Furthermore, the connecting cylinder is also provided with a third tightening bolt, which can be set vertically through the cylinder wall of the connecting cylinder and can be screwed into the connecting cylinder to abut against the second rod, thereby fixing the overall length of the limiting rod. The second end of the second rod is provided with a vertically spiraled support screw, which can be screwed so that its lower end abuts against the ground, thereby providing support and preventing the second rod from bending downwards.
[0014] Furthermore, the reference component includes an adjusting screw and a reference plate. The reference plate is a circular plate, and the adjusting screw is vertically connected to the center of the circular plate. A reference component is provided on rod one, and the adjusting screw is connected to the side of rod one via a side seat located on the other side of rod one. The adjusting screw is vertically threaded through and screwed into the side seat. A reference component is provided on rod two, and the adjusting screw is vertically threaded through and screwed into rod two. The adjusting screw can be helically adjusted on both rod one and rod two, thereby enabling multiple reference plates.
[0015] Furthermore, the adjusting rod includes an adjusting tube and a top rod. The adjusting tube has an internal thread, the lower end of the top rod has an external thread, and the top end of the standard rod has an external thread. The lower end of the top rod and the top end of the standard rod are respectively threaded into the adjusting tube to form the upright rod. When the adjusting tube is screwed, the position of the adjusting tube connected to the standard rod can be adjusted. When the top rod is screwed, the position of the top rod connected to the adjusting tube can be adjusted. Both can achieve the adjustment of the overall length of the adjusting rod.
[0016] Furthermore, the regulating tube is also provided with a lever, which is set perpendicular to the regulating tube.
[0017] Furthermore, the level assembly includes a mounting cavity and a circular level. The mounting cavity divides the standard rod into upper and lower sections. The portion located above the mounting cavity is used to connect the adjusting rod, and the portion located below the mounting cavity is used to connect the base.
[0018] Furthermore, an auxiliary block is provided at the position where the base connects to the standard rod. The auxiliary block is a right-angle block, with one straight edge connected to the standard rod and the other straight edge connected to the base.
[0019] This utility model provides a leveling device for subgrade construction, which has the following advantages: During subgrade construction, workers use the lower surface of the reference plate as a benchmark, ensuring that the surface of the subgrade meets the specified slope and flatness requirements after construction; multiple limiting rods can be flexibly arranged and their lengths are adjustable to adapt to different indoor spaces; the height of the reference plate is adjustable, and multiple reference plates are provided, enabling adjustment of the subgrade surface slope; the mounting block can be adjusted up and down, allowing the limiting rods to move up and down as a whole, thereby adjusting the subgrade thickness; multiple limiting rods use a single upright as a benchmark, significantly improving the construction accuracy of the subgrade; adjusting rods can reliably fix the uprights vertically; a circular level and adjusting bolts ensure the vertical arrangement of the uprights; support screws prevent rods one and two from bending downwards; the device has a simple structure, convenient reference plate adjustment, and a large number of reference plates, ensuring that the flatness and slope of the subgrade surface meet design requirements. Attached Figure Description
[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0021] Figure 1 This is a schematic diagram of the overall structure of the device provided in the embodiment of the present utility model;
[0022] Figure 2 This is a schematic diagram of the device in use according to an embodiment of the present utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the mounting block provided in an embodiment of the present utility model;
[0024] Figure 4 This is a structural schematic diagram of rod one provided in an embodiment of the present utility model;
[0025] Figure 5 This is a schematic diagram of the structure of rod two provided in an embodiment of the present utility model;
[0026] Figure 6 Schematic diagram of the limiting rod provided in the embodiment of this utility model Figure 1 ;
[0027] Figure 7 Schematic diagram of the limiting rod provided in the embodiment of this utility model Figure 2 ;
[0028] Figure 8 Provided for the embodiments of this utility model Figure 1 A schematic diagram of the structure of part A in the diagram;
[0029] Figure 9 Provided for the embodiments of this utility model Figure 1 A structural diagram of part B in the diagram;
[0030] Figure 10 Provided for the embodiments of this utility model Figure 1 A structural diagram of part C in the diagram;
[0031] Figure 11 Provided for the embodiments of this utility model Figure 1 A schematic diagram of the structure of part D in the diagram;
[0032] In the diagram, 1. base, 2. upright, 3. limit rod, 4. level assembly, 5. mounting block, 6. auxiliary block;
[0033] 11. Adjusting bolt; 21. Standard rod; 22. Adjusting rod; 221. Adjusting tube; 222. Top rod; 223. Plate rod; 31. Insert rod; 32. Rod one; 321. Connecting cylinder; 322. Slide groove; 323. Side seat; 324. First screw hole; 33. Rod two; 331. Sliding block; 332. Second screw hole; 34. Reference part; 341. Adjusting screw; 342. Reference plate; 35. Third tightening bolt; 36. Support screw; 41. Mounting cavity; 42. Circular level; 51. Insert hole; 52. First tightening bolt; 53. Second tightening bolt. Detailed Implementation
[0034] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0035] See Figure 1-11 As shown, this is a leveling device for subbase construction provided by an embodiment of the present invention, including a base 1, a vertical rod 2, and limiting rods 3; the vertical rod 2 includes a standard rod 21 and an adjusting rod 22, the standard rod 21 is vertically mounted on the base 1, the adjusting rod 22 is mounted on the standard rod 21, and the height of the adjusting rod 22 is adjustable; a leveling component 4 is provided near the base 1 on the standard rod 21, which can divide the standard rod 21 into upper and lower sections, and the leveling component 4 can adjust the verticality of the vertical rod 2; the limiting rods 3 include multiple ones, and are connected by... The mounting block 5 is vertically connected to the standard rod 21. The mounting block 5 is fitted onto the standard rod 21 and can move up and down along it. The mounting block 5 is located below the level assembly 4. Multiple limiting rods 3 are sequentially and detachably connected to the mounting block 5. Multiple reference elements 34 are sequentially and vertically arranged along the length of each limiting rod 3. The reference elements 34 are screwed onto the limiting rods 3 and can abut against the ground. Because there are multiple limiting rods 3, in conjunction with the reference elements 34, the subgrade can be leveled during construction. Figure 2 As shown.
[0036] Reference Figure 1 , 10 As shown, a plurality of adjusting bolts 11 are arranged around the periphery of the base 1. The adjusting bolts 11 are screwed through and connected to the base 1. By screwing the adjusting bolts 11 to make them abut against the ground, the contact angle between the base 1 and the ground can be adjusted, thereby keeping the circular level 42 horizontal and adjusting the verticality of the upright 2.
[0037] In this embodiment, the portion of the standard rod 21 between the level component 4 and the base 1 is provided with scale lines (not shown in the figure), which can position the height of the mounting block 5 sleeved on it, thereby realizing the height positioning of the limiting rod 3.
[0038] Reference Figure 1 , 3As shown in Figure 10, the mounting block 5 is provided with multiple insertion holes 51. The first end of the limiting rod 3 is provided with a vertical insertion rod 31. The insertion rod 31 can be inserted into the insertion hole 51. The outer wall of the insertion hole 51 is also provided with a corresponding first tightening bolt 52, which can penetrate the outer wall of the insertion hole 51 vertically and be screwed into the insertion hole 51 to tighten the insertion rod 31 inserted into the insertion hole 51. The insertion hole 51 is a circular hole and the insertion rod 31 is a circular rod, so that the position of the limiting rod 3 when connected can be adjusted so that the multiple limiting rods 3 present different included angles. By adjusting the connection angle of the limiting rod 3, the different positions of the construction pad can be leveled.
[0039] Reference Figure 1 , 10 As shown, the mounting block 5 is also equipped with a second tightening bolt 53, which can penetrate vertically through the side wall of the mounting block 5 and abut against the standard rod 21, thereby tightening the mounting block 5.
[0040] Reference Figure 1 , 4 As shown in Figure 7, the limiting rod 3 includes a first rod 32 and a second rod 33. The first end of the first rod 32 is connected to the mounting block 5. The insertion rod 31 is located at the first end of the first rod 32 and can be connected to the insertion hole 51 on the mounting block 5. The second end of the first rod 32 is provided with a connecting cylinder 321. The first end of the second rod 33 can pass through the connecting cylinder 321 and slide along the connecting cylinder 321, thereby adjusting the overall length of the limiting rod 3. The first rod 32 is provided with a sliding groove 322 along its length direction. A slider 331 is provided on one side of the first end of the second rod 33. The slider 331 can be locked in the sliding groove 322 and can slide along the sliding groove 322. When the second rod 33 slides towards the first end of the first rod 32 in the connecting cylinder 321, the slider 331 slides along the sliding groove 322, and the second rod 33 slides against the side of the first rod 32. In this embodiment, the length of the overall limiting rod 3 can be adjusted by the relative sliding of rod 32 and rod 33, thereby adapting to the leveling of construction sub-layers with different coverage areas.
[0041] Reference Figure 7 As shown, the connecting cylinder 321 is also provided with a third tightening bolt 35, which can be set vertically through the cylinder wall of the connecting cylinder 321 and can be screwed into the connecting cylinder 321 to abut against the second rod 33, thereby fixing the overall length of the limiting rod 3. The second end of the second rod 33 is provided with a vertically spiral support screw 36, which can be screwed to make its lower end abut against the ground, thereby playing a supporting role and preventing the second rod 33 from bending downwards, so as to ensure the accuracy of the leveling of the pad layer.
[0042] Reference Figure 1 ,4 As shown in Figure -8, the reference component 34 includes an adjusting screw 341 and a reference plate 342. The reference plate 342 is a circular plate, and the adjusting screw 341 is vertically connected to the center of the circular plate. The reference component 34 on the first rod 32 has the adjusting screw 341 connected to the side of the first rod 32 via a side seat 323. The side seat 323 is located on the other side of the first rod 32, and the adjusting screw 341 is vertically threaded through and screwed into the side seat 323. The side seat 323 has a first screw hole 324, and the adjusting screw 341 is helically connected into the first screw hole 324. The reference component 34 on the second rod 33 has the adjusting screw 341 vertically threaded through and screwed into the second rod 33. The adjusting screw 341 can be helically adjusted on both the first rod 32 and the second rod 33, so that the horizontal position of the multiple reference plates 341 meets the construction requirements.
[0043] Reference Figure 1 As shown, the adjusting rod 22 includes an adjusting tube 221 and a top rod 222. The adjusting tube 221 has an internal thread, the lower end of the top rod 222 has an external thread, and the top end of the standard rod 21 has an external thread. The lower end of the top rod 222 and the top end of the standard rod 21 are respectively threaded into the adjusting tube 221 to form the upright rod 2. When the adjusting tube 221 is turned, the position of the adjusting tube 221 connected to the standard rod 21 can be adjusted. When the top rod 222 is turned, the position of the top rod 222 connected to the adjusting tube 221 can be adjusted. Both can realize the adjustment of the overall length of the adjusting rod 22, and further realize the adjustment of the overall length of the upright rod.
[0044] Continue to refer to Figure 1 As shown, the regulating tube 221 is also provided with a lever 223. The lever 223 is set perpendicular to the regulating tube 221. By increasing the torque, the force required to rotate the regulating tube 221 is reduced, making it easier for workers to operate.
[0045] Reference Figure 1 , 10 As shown, the level assembly 4 includes a mounting cavity 41 and a circular level 42. The mounting cavity 41 divides the standard rod 21 into upper and lower sections. The portion located above the mounting cavity 41 is used to connect the adjusting rod 22, and the portion located below the mounting cavity 41 is used to connect the base 1.
[0046] In this embodiment, an auxiliary block is provided at the position where the base 1 is connected to the standard rod 21. The auxiliary block is a right-angle block, with one straight edge connected to the standard rod 21 and the other straight edge connected to the base 1.
[0047] The following is a method of using a leveling device for subgrade construction disclosed in this embodiment of the utility model, referring to the attached diagram. Figure 2 As shown: Place the device in the center of the space to be constructed, adjust the adjusting rod 22 to abut the top of the construction space, adjust the level of the circular level 42, adjust the overall length of the limiting rod 3 according to the needs of the subbase construction, and at the same time adjust the horizontal position of the reference piece 34 on the limiting rod 3. While constructing, use the reference plate 342 of the reference piece 34 on the limiting rod 3 to level the height of the subbase. Different subbase construction positions can be adjusted by rotating the insertion rod 31 on the limiting rod 3 in the insertion hole to adjust the different leveling positions corresponding to the limiting rod 3, thereby achieving leveling of the subbase construction of the entire construction space. When leveling, first reserve an access channel to reserve a position for the base 1 of the leveling device for easy disassembly later. Finally, carry out subbase construction in the position of the channel.
[0048] In summary, the leveling device for subgrade construction provided in this embodiment has the following beneficial technical effects: During subgrade construction, workers use the lower surface of the reference plate as a reference, ensuring that the surface of the subgrade meets the specified slope and flatness requirements after construction; multiple limiting rods can be flexibly arranged and their lengths are adjustable to adapt to different indoor spaces; the height of the reference plate is adjustable, and multiple reference plates are provided, enabling adjustment of the subgrade surface slope; the mounting block can be adjusted up and down, allowing the limiting rods to move up and down as a whole, thereby adjusting the subgrade thickness; multiple limiting rods use a single upright as a reference, significantly improving the construction accuracy of the subgrade; adjusting rods can reliably fix the entire upright vertically; a circular level and adjusting bolts can ensure the vertical arrangement of the uprights; support screws can prevent rod one and rod two from bending downwards; the device has a simple structure, convenient reference plate adjustment, and a large number of reference plates, ensuring that the flatness and slope of the subgrade surface meet the design requirements.
[0049] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0050] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0051] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A leveling device for subbase construction, characterized in that, include: Base; The upright pole includes a standard pole and an adjusting pole. The standard pole is vertically mounted on the base, and the adjusting pole is mounted on the standard pole and its height is adjustable. A level assembly is provided on the standard pole near the base, which can divide the standard pole into upper and lower sections. The level assembly can adjust the verticality of the upright pole. The limiting rod includes multiple rods, which are vertically connected to the standard rod via a mounting block. The mounting block is sleeved on the standard rod and can move up and down along the standard rod. The mounting block is located below the level assembly. The multiple limiting rods are sequentially and detachably connected to the mounting block. Multiple reference members are sequentially and vertically inserted through the limiting rod along its length, and the reference members can abut against the ground.
2. The leveling device for subbase construction according to claim 1, characterized in that, Multiple adjusting bolts are arranged around the periphery of the base. The adjusting bolts are screwed through the base and screwed into it. By screwing the adjusting bolts to make them abut against the ground, the contact angle between the base and the ground can be adjusted, thereby keeping the level assembly horizontal and adjusting the verticality of the pole.
3. The leveling device for subbase construction according to claim 1, characterized in that, The portion of the standard rod between the level assembly and the base has scale lines, which can position the mounting block fitted on it, thereby achieving the positioning of the limiting rod.
4. The leveling device for subbase construction according to claim 1, characterized in that, The mounting block is provided with multiple insertion holes. The first end of the limiting rod is provided with a vertical insertion rod, which can be inserted into the insertion hole. The outer wall of the insertion hole is also provided with a first tightening bolt, which can penetrate the outer wall of the insertion hole vertically and be screwed into the insertion hole to tighten the insertion rod inserted into the insertion hole. The insertion hole is a circular hole and the insertion rod is a circular rod, so that the position of the limiting rod when connected can be adjusted so that the multiple limiting rods present different included angles.
5. The leveling device for subbase construction according to claim 1, characterized in that, The mounting block is also equipped with a second tightening bolt, which can penetrate vertically through the side wall of the mounting block and abut against the standard rod, thereby tightening the mounting block.
6. The leveling device for subbase construction according to claim 1, characterized in that, The limiting rod includes a first rod and a second rod. The first end of the first rod is connected to the mounting block, and the second end of the first rod is provided with a connecting cylinder. The first end of the second rod can pass through the connecting cylinder and slide along the connecting cylinder, thereby adjusting the overall length of the limiting rod. The first rod is provided with a sliding groove along its length direction, and a slider is provided on one side of the first end of the second rod. The slider can be locked in the sliding groove and can slide along the sliding groove. When the second rod slides towards the first end of the first rod in the connecting cylinder, the slider slides along the sliding groove, and the second rod slides against the side of the first rod.
7. The leveling device for subbase construction according to claim 6, characterized in that, The connecting cylinder is also provided with a third tightening bolt, which can be set vertically through the cylinder wall of the connecting cylinder and can be screwed into the connecting cylinder to abut against the second rod, thereby fixing the length of the limiting rod. The second end of the second rod is provided with a vertically spiraled support screw, which can be screwed so that its lower end abuts against the ground, thereby providing support and preventing the second rod from bending downwards.
8. The leveling device for subbase construction according to claim 6, characterized in that, The reference component includes an adjusting screw and a reference plate. The reference plate is circular, and the adjusting screw is vertically connected to the center of the circular plate. The adjusting screw is connected to the side of the first rod via a side seat located on the other side of the first rod. The adjusting screw is vertically threaded through and screwed into the side seat. Similarly, the adjusting screw is threaded through and screwed into the second rod. The adjusting screw can be helically adjusted on both the first and second rods, thereby enabling the multiple reference plates to be adjusted.
9. The leveling device for subbase construction according to any one of claims 1-8, characterized in that, The adjusting rod includes an adjusting tube and a top rod. The adjusting tube has an internal thread, the lower end of the top rod has an external thread, and the top end of the standard rod has an external thread. The lower end of the top rod and the top end of the standard rod are respectively threaded into the adjusting tube to form the upright rod. Tightening the adjusting tube can adjust the position of the adjusting tube connected to the standard rod, and tightening the top rod can adjust the position of the top rod connected to the adjusting tube, both of which can adjust the overall length of the adjusting rod.
10. The leveling device for subbase construction according to claim 1, characterized in that, The level assembly includes a mounting cavity and a circular level. The mounting cavity divides the standard rod into two parts: the part located above the mounting cavity is used to connect the adjusting rod, and the part located below the mounting cavity is used to connect the base.