Leveling device for cushion construction

Abstract

According to the leveling device for cushion layer construction, during cushion layer construction, the lower plate face of the datum plate serves as the datum, and the surface of the cushion layer can meet the specified gradient and flatness requirements after cushion layer construction is completed; a plurality of limiting rods can be flexibly arranged and are adjustable in length, so that the device is suitable for different indoor spaces; the heights of the datum plates can be adjusted, and the structure can achieve adjustment of the surface gradient of the cushion layer; the mounting block can be adjusted up and down, so that the limiting rod can integrally move up and down to adjust the thickness of the cushion layer; a plurality of limiting rods are based on one vertical rod, so that the construction precision of the cushion layer is greatly improved; the whole vertical rod can be reliably and vertically fixed by utilizing the adjusting rod; the vertical arrangement of the vertical rod can be ensured by utilizing the circular gradienter and the adjusting bolt; the supporting screw rod can prevent the rod I and the rod II from bending downwards; the device is simple in structure, the datum plates are convenient to adjust, the number of the datum plates is large, and it can be guaranteed that the surface flatness and gradient of the cushion layer meet the design requirements.

Description

Technical Field

[0001] The invention relates to the technical field of indoor cushion construction of buildings, and in particular to a leveling device for cushion construction. Background Art

[0002] After the laying of the floor heating pipes and before the laying of the floor tiles, it is necessary to construct a cushion layer on the indoor floor of the building. The cushion layer can protect the floor heating pipes and also help with the later laying of floor tiles. Of course, if there is no floor heating, the floor tiles can be laid directly after the cushion layer is completed.

[0003] At present, when carrying out cushion construction, workers will use ink fountains to throw lines on the building walls to mark the position of the upper surface of the cushion in advance, then use a concrete truck to pour concrete on the indoor floor, and use shovels, trowels and flat vibrators to flatten the cushion. However, relying solely on the height lines on the wall cannot guarantee the flatness and slope requirements of the cushion. Some workers will nail nails and insert wooden wedges on the ground. When the cushion is laid, the concrete is flush with the upper ends of the wooden wedges or nails. After the cushion is constructed in this way, its flatness and slope cannot meet the design requirements, and the early leveling process is complicated. The above-mentioned wooden wedges, nails, etc. will be embedded in the cushion and cannot be removed. Summary of the invention

[0004] In view of this, the present invention proposes a leveling device for cushion construction, comprising: Base; The vertical pole includes a standard pole and an adjusting pole, wherein the standard pole is vertically arranged on the base, the adjusting pole is arranged above the standard pole, and the height of the adjusting pole is adjustable, a level assembly is arranged at a position of the standard pole close to the base, and the standard pole can be divided into two sections, the level assembly can adjust the verticality of the vertical pole; The limit rod comprises a plurality of limit rods, which are vertically connected to the standard rod through a set 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 arranged below the level assembly. The plurality of limit rods are sequentially connected to the limit block and are detachably connected. The limit rod is sequentially vertically arranged with a plurality of reference parts along its length direction. The reference parts are screwed to the limit rod and can abut against the ground.

[0005] Furthermore, a plurality of adjusting bolts are sequentially arranged around the periphery of the base, and the adjusting bolts are passed through and screwed to be connected to the base. By screwing the adjusting bolts to make them contact the ground, the contact angle between the base and the ground can be adjusted, so that the circular level can be kept horizontal to adjust the verticality of the upright pole.

[0006] Furthermore, a portion between the level assembly and the base on the standard rod is provided with scale lines, which can position the height of the mounting block mounted thereon, thereby achieving height positioning of the limit rod.

[0007] Furthermore, the mounting block is provided with a plurality of sockets, and an insertion rod is vertically provided at the first end of the limit rod, and the insertion rod can be inserted into the socket. The outer wall of the socket is also correspondingly provided with a first tightening bolt, which can vertically penetrate the outer wall of the socket and be screwed into the socket, so as to tighten the insertion rod inserted in the socket. The socket is a circular hole, and the insertion rod is a circular rod, so that the position of the limit rod when connected can be adjusted, so that different angles are presented between the multiple limit rods.

[0008] 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, so as to tighten the mounting block.

[0009] 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, the second end of the rod one is provided with a connecting tube, the first end of the rod two can be inserted into the connecting tube and can slide along the connecting tube, so as to adjust the overall length of the limiting rod, the rod one is provided with a sliding groove along its length direction, and a slider is correspondingly provided on one side of the first end of the rod two, the slider can be clamped in the sliding groove and can slide along the sliding groove, when the rod two slides in the connecting tube toward the first end of the rod one, the slider slides along the sliding groove, and the rod two slides along the side of the rod one.

[0010] Furthermore, the connecting tube is also provided with a third tightening bolt, which can vertically penetrate the tube wall of the connecting tube and can be screwed into the connecting tube to abut against the rod 2, so that the overall length of the limit rod is fixed. The second end of the rod 2 is vertically spirally provided with a supporting screw, which can be screwed so that its lower end abuts against the ground, thereby playing a supporting role and preventing the rod 2 from bending down.

[0011] Furthermore, the reference member 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; the reference member arranged on the rod one, the adjusting screw is connected to the side of the rod one through a side seat, the side seat is arranged on the other side of the rod one, the adjusting screw vertically penetrates and is screwed to the side seat, the reference member arranged on the rod two, the adjusting screw vertically penetrates and is screwed to the rod two, and the adjusting screw can be screwed on both the rod one and the rod two, so that multiple reference plates are provided.

[0012] Furthermore, the adjusting rod includes an adjusting tube and a push rod, the adjusting tube is provided with an internal thread, the lower end of the push rod is provided with an external thread, the top end of the standard rod is provided with an external thread, the lower end of the push rod and the top end of the standard rod are respectively threadedly connected to the adjusting tube to form the vertical rod, when the adjusting tube is screwed, the position of the adjusting tube connected to the standard rod can be adjusted, and when the push rod is screwed, the position of the push rod connected to the adjusting tube can be adjusted, both of which can realize the adjustment of the overall length of the adjusting rod.

[0013] Furthermore, a lever is provided on the adjusting tube, and the lever is arranged perpendicular to the adjusting tube.

[0014] Furthermore, the level assembly includes an installation cavity and a circular level, the installation cavity divides the standard rod into two sections, the part above the installation cavity is used to connect the adjustment rod, and the part below the installation cavity is used to connect the base.

[0015] Furthermore, an auxiliary block is provided at the position where the base is connected to the standard rod, and the auxiliary block is a right-angle block, wherein a straight side on one side is connected to the standard rod, and a straight side on the other side is connected to the base.

[0016] The present invention provides a leveling device for cushion construction, which has the following advantages: when carrying out cushion construction, workers use the lower plate surface of the reference plate as a reference, and after the cushion construction is completed, its surface can reach the specified slope and flatness requirements; multiple limit rods can be flexibly arranged, and the length can be adjusted to adapt to different indoor spaces; the height of the reference plate is adjustable, and multiple reference plates are provided, and this structure can adjust the slope of the cushion surface; the mounting block can be adjusted up and down, so that the limit rod can move up and down as a whole, thereby adjusting the thickness of the cushion; multiple limit rods use one vertical pole as a reference, which greatly improves the construction accuracy of the cushion; using the adjusting rod, the overall vertical pole can be reliably fixed vertically; using the circular level and the adjusting bolt, the vertical arrangement of the vertical pole can be guaranteed; the supporting screw can prevent the first pole and the second pole from bending downward; the device has a simple structure, the reference plate is easy to adjust, and the number of reference plates is large, which can ensure that the surface flatness and slope of the cushion meet the design requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic diagram of the overall structure of a device provided by an embodiment of the present invention; Figure 2A schematic diagram of the structure of the device in use state provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a mounting block provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a rod 1 provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the rod 2 provided in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of the limit rod provided in the embodiment of the present invention Figure 1 ; Figure 7 A schematic diagram of the structure of the limit rod provided in the embodiment of the present invention Figure 2 ; Figure 8 The embodiment of the present invention provides Figure 1 Schematic diagram of the structure of part A; Fig. 9 The embodiment of the present invention provides Figure 1 A schematic diagram of the structure of part B in FIG. Fig.10 The embodiment of the present invention provides Figure 1 Schematic diagram of the structure of part C in; Fig.11 The embodiment of the present invention provides Figure 1 A schematic diagram of the structure of the D part; In the figure, 1, base, 2, upright pole, 3, limit rod, 4, level assembly, 5, mounting block, 6, auxiliary block; 11. adjusting bolt, 21. standard rod, 22. adjusting rod, 221. adjusting tube, 222. push rod, 223. plate rod, 31. insert rod, 32. rod one, 321. connecting tube, 322. slide groove, 323. side seat, 324. first screw hole, 33. rod two, 331. slider, 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. socket, 52. first tightening bolt, 53. second tightening bolt. DETAILED DESCRIPTION

[0018] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] See also Figure 1-11 As shown, it is a leveling device for cushion construction provided by an embodiment of the present invention, including a base 1, a vertical pole 2 and a limit rod 3; the vertical pole 2 includes a standard rod 21 and an adjusting rod 22, the standard rod 21 is vertically arranged on the base 1, the adjusting rod 22 is arranged on the standard rod 21, and the height of the adjusting rod 22 is adjustable, and the top of the adjusting rod 22 can be against the top of the construction cushion space building. Since the height of the entire vertical pole 2 is adjustable, it can be suitable for spaces of different heights. The standard rod 21 is provided with a level assembly 4 near the base 1, which can divide the standard rod 21 into an upper and lower section, and the level assembly 4 can Adjust the verticality of the upright 2; the limit rod 3 includes multiple ones, and is vertically connected to the standard rod 21 through the set mounting block 5, the mounting block 5 is sleeved on the standard rod 21, and can move up and down along the standard rod 21, the mounting block 5 is arranged below the level assembly 4, and multiple limit rods 3 are sequentially connected to the mounting block 5 around and detachably connected, and multiple reference pieces 34 are vertically arranged on the limit rod 3 in sequence along its length direction, the reference piece 34 is screwed to the limit rod 3, and can abut against the ground, because the limit rod 3 is provided with multiple ones, in conjunction with the reference piece 34, the construction cushion layer can be leveled, refer to Figure 2 shown.

[0020] Reference Figure 1 , 10 As shown, a plurality of adjusting bolts 11 are sequentially arranged around the periphery of the base 1, and the adjusting bolts 11 are passed through and screwed to be connected to the base 1. By screwing the adjusting bolts 11 to make them contact with the ground, the contact angle between the base 1 and the ground can be adjusted, so that the circular level 42 remains horizontal to adjust the verticality of the upright pole 2.

[0021] In this embodiment, the portion between the level assembly 4 and the base 1 on the standard rod 21 is provided with a scale line (not marked in the drawings), which can position the height of the mounting block 5 mounted thereon, thereby achieving height positioning of the limit rod 3.

[0022] Reference Figure 1 , 3 As shown in Figure 10, a plurality of insertion holes 51 are provided on the mounting block 5, and an insertion rod 31 is vertically provided at the first end of the limit rod 3, and the insertion rod 31 can be inserted into the insertion hole 51. The outer wall of the insertion hole 51 is also correspondingly provided with a first tightening bolt 52, which can vertically penetrate the outer wall of the insertion hole 51 and be screwed into the insertion hole 51, so as to tighten the insertion rod 31 inserted in 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 limit rod 3 when connected can be adjusted, so that different angles are presented between the plurality of limit rods 3. By adjusting the connection angle of the limit rod 3, different positions of the construction cushion layer can be leveled.

[0023] Reference Figure 1 , 10 As shown, the mounting block 5 is also equipped with a second tightening bolt 53 which can vertically penetrate the side wall of the mounting block 5 and abut against the standard rod 21 , thereby tightening the mounting block 5 .

[0024] Reference Figure 1 , 4 -7, the limiting rod 3 includes a rod 1 32 and a rod 2 33, the first end of the rod 1 32 is connected to the mounting block 5, the insertion rod 31 is arranged at the first end of the rod 1 32, and can be connected to the socket 51 on the mounting block 5, the second end of the rod 1 32 is provided with a connecting tube 321, the first end of the rod 2 33 can be connected to the connecting tube 321, and can slide along the connecting tube 321, so as to adjust the overall length of the limiting rod 3, the rod 1 32 is provided with a sliding groove 322 along its length direction, and a slider 331 is correspondingly provided on one side of the first end of the rod 2 33, the slider 331 can be clamped in the sliding groove 322, and can slide along the sliding groove 322, when the rod 2 33 slides in the connecting tube 321 toward the first end of the rod 1 32, the slider 331 slides along the sliding groove 322, and the rod 2 33 slides along the side of the rod 1 32. In this embodiment, by providing the rod 1 32 and the rod 2 33 to slide relative to each other, the length of the overall limiting rod 3 can be adjusted to adapt to the leveling work of the construction cushion layers with different coverage areas.

[0025] Reference Figure 7 As shown, the connecting tube 321 is also provided with a third tightening bolt 35, which can vertically penetrate the tube wall of the connecting tube 321 and can be screwed into the connecting tube 321 to abut against the rod 2 33, so that the overall length of the limit rod 3 is fixed. The second end of the rod 2 33 is vertically spirally provided with a supporting screw 36, which can be screwed so that its lower end abuts against the ground, and can play a supporting role to prevent the rod 2 33 from bending downward, so as to ensure the accuracy of the leveling of the cushion layer.

[0026] Reference Figure 1 , 4 -8, the reference member 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 member 34 arranged on the rod 1 32, the adjusting screw 341 is connected to the side of the rod 1 32 through the arranged side seat 323, the side seat 323 is arranged on the other side of the rod 1 32, the adjusting screw 341 vertically penetrates and is screwed to the side seat 323, the side seat 323 is provided with a first screw hole 324, the adjusting screw 341 is screwed in the first screw hole 324, the reference member 34 arranged on the rod 2 33, the adjusting screw 341 can be screwed on both the rod 1 32 and the rod 2 33, so that the horizontal position of multiple reference plates 341 meets the construction requirements. In this embodiment, by adjusting the horizontal position of the reference plate 342, not only the cushion layers on the same horizontal plane can be leveled, but also the construction cushion layers on the inclined surface (or slope) can be leveled, and the application range is wide.

[0027] Reference Figure 1 As shown, the adjusting rod 22 includes an adjusting tube 221 and a push rod 222. The adjusting tube 221 is provided with an internal thread, the lower end of the push rod 222 is provided with an external thread, and the top end of the standard rod 21 is provided with an external thread. The lower end of the push rod 222 and the top end of the standard rod 21 are respectively threadedly connected to the adjusting tube 221, thereby forming the vertical rod 2. When the adjusting tube 221 is screwed, the position of the adjusting tube 221 connected to the standard rod 21 can be adjusted. When the push rod 222 is screwed, the position of the push 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 total length of the vertical rod.

[0028] Continue to refer to Figure 1 As shown, the adjusting tube 221 is also provided with a lever 223, and the lever 223 is arranged perpendicular to the adjusting tube 221. By increasing the torque, the force required to rotate the adjusting tube 221 is reduced, which is convenient for workers to operate.

[0029] Reference Figure 1 , 10 As shown, the level assembly 4 includes an installation cavity 41 and a circular level 42. The installation cavity 41 divides the standard rod 21 into two sections, the part above the installation cavity 41 is used to connect the adjustment rod 22, and the part below the installation cavity 41 is used to connect the base 1.

[0030] 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, one straight side of which is connected to the standard rod 21 , and the other straight side of which is connected to the base 1 .

[0031] The method for using a leveling device for cushion construction disclosed in an embodiment of the present invention is as follows. Figure 2 As shown: place the device at the center of the space to be constructed, adjust the adjusting rod 22 to make it rest against the top of the construction space, adjust the horizontality of the circular level 42, adjust the length of the limit rod 3 according to the needs of the cushion construction, and adjust the horizontal position of the reference part 34 on the limit rod 3 at the same time. While constructing, use the reference plate 342 of the reference part 34 on the limit rod 3 to level the construction cushion height. Different cushion construction positions can be adjusted by rotating the insertion rod 31 on the limit rod 3 in the insertion hole to adjust the different leveling positions corresponding to the limit rod 3, thereby achieving leveling of the cushion construction of the entire construction space. When leveling, first reserve an entry and exit channel and reserve a position for the base 1 of the leveling device to facilitate later disassembly, and finally perform cushion construction at the channel position.

[0032] In summary, the leveling device for cushion construction provided by the present embodiment has the following beneficial technical effects: when carrying out cushion construction, workers use the lower plate surface of the reference plate as the reference, and after the cushion construction is completed, its surface can reach the specified slope and flatness requirements; multiple limit rods can be flexibly arranged, and the length can be adjusted to adapt to different indoor spaces; the height of the reference plate is adjustable, and multiple reference plates are provided, and this structure can adjust the slope of the cushion surface; the mounting block can be adjusted up and down, so that the limit rod can move up and down as a whole, thereby adjusting the thickness of the cushion; multiple limit rods use one vertical pole as the reference, which greatly improves the construction accuracy of the cushion; using the adjusting rod, the overall vertical pole can be reliably fixed vertically; using the circular level and adjusting bolts, the vertical arrangement of the vertical pole can be ensured; the support screw can prevent pole one and pole two from bending downward; the device has a simple structure, the reference plate is easy to adjust, and the number of reference plates is large, which can ensure that the surface flatness and slope of the cushion meet the design requirements.

[0033] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0034] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A leveling device for cushion construction, characterized in that: include: Base; The vertical pole includes a standard pole and an adjusting pole, wherein the standard pole is vertically arranged on the base, the adjusting pole is arranged above the standard pole, and the height of the adjusting pole is adjustable, a level assembly is arranged at a position of the standard pole close to the base, and the standard pole can be divided into two sections, the level assembly can adjust the verticality of the vertical pole; The limit rod includes multiple limit rods, which are vertically connected to the standard rod through a set 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 arranged below the level assembly. The multiple limit rods are sequentially connected to the mounting block and are detachably connected. The limit rods are sequentially vertically penetrated by multiple reference parts along their length direction, and the reference parts can abut the ground.

2. The leveling device for cushion construction according to claim 1, characterized in that: A plurality of adjusting bolts are sequentially arranged around the periphery of the base, and the adjusting bolts are threadedly connected to the base. By screwing the adjusting bolts to make them contact the ground, the contact angle between the base and the ground can be adjusted, so that the circular level is kept horizontal to adjust the verticality of the upright pole.

3. The leveling device for cushion construction according to claim 1, characterized in that: The portion between the level assembly and the base on the standard rod is provided with scale lines, which can position the mounting block sleeved thereon, thereby realizing the positioning of the limit rod.

4. The leveling device for cushion construction according to claim 1, characterized in that: The mounting block is provided with a plurality of insertion holes, and an insertion rod is vertically provided at the first end of the limiting rod, and the insertion rod can be inserted into the insertion hole. The outer wall of the insertion hole is also correspondingly provided with a first tightening bolt, which can vertically penetrate the outer wall of the insertion hole and be screwed into the insertion hole, so as to tighten the insertion rod inserted in 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 different angles are presented between the plurality of limiting rods.

5. The leveling device for cushion construction according to claim 1, characterized in that: 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, so as to tighten the mounting block.

6. The leveling device for cushion construction according to claim 1, characterized in that: The limiting rod includes a rod 1 and a rod 2, the first end of the rod 1 is connected to the mounting block, the second end of the rod 1 is provided with a connecting tube, the first end of the rod 2 can be inserted into the connecting tube and can slide along the connecting tube, so as to adjust the overall length of the limiting rod, the rod 1 is provided with a sliding groove along its length direction, and a slider is correspondingly provided on one side of the first end of the rod 2, the slider can be clamped in the sliding groove and can slide along the sliding groove, when the rod 2 slides in the connecting tube toward the first end of the rod 1, the slider slides along the sliding groove, and the rod 2 slides along the side of the rod 1.

7. The leveling device for cushion construction according to claim 6, characterized in that: The connecting tube is also provided with a third tightening bolt, which can vertically penetrate the tube wall of the connecting tube and can be screwed into the connecting tube to abut against the rod 2, so that the length of the limit rod is fixed. The second end of the rod 2 is vertically spirally provided with a supporting screw, which can be screwed so that its lower end abuts against the ground, which can play a supporting role and prevent the rod 2 from bending down.

8. The leveling device for cushion construction according to claim 6, characterized in that: The reference member 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; the reference member arranged on the rod one, the adjusting screw is connected to the side of the rod one through a side seat, the side seat is arranged on the other side of the rod one, the adjusting screw vertically penetrates and is screwed to the side seat, the reference member arranged on the rod two, the adjusting screw vertically penetrates and is screwed to the rod two, and the adjusting screw can be screwed on both the rod one and the rod two, so that multiple reference plates can be formed.

9. The leveling device for cushion construction according to any one of claims 1 to 8, characterized in that: The adjusting rod includes an adjusting tube and a push rod. The adjusting tube is provided with an internal thread, the lower end of the push rod is provided with an external thread, and the top end of the standard rod is provided with an external thread. The lower end of the push rod and the top end of the standard rod are respectively threadedly connected to the adjusting tube to form the vertical rod. When the adjusting tube is screwed, the position of the adjusting tube connected to the standard rod can be adjusted. When the push rod is screwed, the position of the push rod connected to the adjusting tube can be adjusted. Both can realize the adjustment of the overall length of the adjusting rod.

10. The leveling device for cushion 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 adjustment rod, and the part located below the mounting cavity is used to connect the base.

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