Jacking device for leveling concrete ground

Abstract

The invention discloses a jacking device for concrete ground leveling, and belongs to the technical field of jacking devices, the jacking device comprises a supporting bottom plate fixedly mounted on the ground, an upper jacking plate hinged to one end of the supporting bottom plate, and a U-shaped supporting rod hinged to the lower side face of the upper jacking plate; the other end of the supporting bottom plate is provided with a rear baffle blocking the lower end of the U-shaped supporting rod, the rear baffle is horizontally connected with a first adjusting screw in a threaded mode, and the tail end of the first adjusting screw abuts against a bottom rod of the U-shaped supporting rod. When the first adjusting screw is rotated, the U-shaped supporting rod is driven to rotate, and the opening angle and height of the upper jacking plate are adjusted. A supporting bottom plate is hinged to an upper jacking plate, and a U-shaped supporting rod is hinged to the lower side face of the upper jacking plate; the rear baffle is horizontally in threaded connection with a first adjusting screw, and the tail end of the first adjusting screw abuts against a bottom rod of the U-shaped supporting rod; when the first adjusting screw is rotated, the U-shaped supporting rod is driven to rotate, the opening angle and height of the upper jacking plate are adjusted, and convenience and practicability are achieved.

Description

Technical Field

[0001] This invention relates to the field of jacking technology, specifically a jacking device for leveling concrete floors. Background Technology

[0002] Ground hardening is becoming increasingly popular in modern urban construction. Hardening the ground with concrete creates a smooth surface that greatly facilitates people's travel. During the concrete hardening process, leveling the concrete surface is crucial to the hardening effect. However, existing concrete hardening processes lack the necessary tools for leveling the concrete surface. Therefore, this invention provides a jacking device for leveling concrete surfaces. Summary of the Invention

[0003] To address the aforementioned technical deficiencies, the present invention aims to provide a jacking device for leveling concrete floors, comprising a base plate and an upper jacking plate hinged together, with a U-shaped support rod hinged to the lower side of the upper jacking plate; a first adjusting screw is horizontally threaded onto the rear baffle, with the end of the first adjusting screw abutting against the bottom rod of the U-shaped support rod; when the first adjusting screw is rotated, the U-shaped support rod is driven to rotate, adjusting the opening angle and height of the upper jacking plate, which is convenient and practical; and solves the technical problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a jacking device for leveling concrete floors, comprising: a supporting base plate fixedly installed on the ground, an upper jacking plate hinged to one end of the supporting base plate, and a U-shaped support rod hinged to the lower side of the upper jacking plate; the U-shaped support rod is hinged at the middle position of the lower side of the upper jacking plate to ensure good support; the other end of the supporting base plate is provided with a rear baffle that blocks the lower end of the U-shaped support rod, and a first adjusting screw is horizontally threaded onto the rear baffle, the end of the first adjusting screw pressing against the bottom rod of the U-shaped support rod; when the first adjusting screw is rotated, the U-shaped support rod is driven to rotate, thereby adjusting the opening angle and height of the upper jacking plate.

[0005] Preferably, two second adjusting screws are symmetrically threaded on both sides of the upper top plate, and the second adjusting screws are located between the U-shaped support rod and the lower end of the upper top plate. When the angle between the supporting base plate and the upper top plate is less than or equal to 21°, rotating the second adjusting screws drives the upper top plate to rotate, adjusting the opening angle and height of the upper top plate. In use, the upper top plate is in an inclined state, and the second adjusting screws are close to the lower part of the upper top plate. When the angle between the supporting base plate and the upper top plate is less than or equal to 21°, the angle and height between the supporting base plate and the upper top plate change significantly when the first adjusting screw extends by a unit length, resulting in imprecise adjustment. By connecting the second adjusting screws near the lower part of the upper top plate and simultaneously sliding the bottom rod of the U-shaped support rod out of the rear baffle, the adjustment can be made directly using the second adjusting screws, which is more precise, convenient, and practical.

[0006] Preferably, the supporting base plate is equipped with a vertical marker, and the bottom side of the upper jacking plate has a strip-shaped perforation corresponding to the position of the vertical marker; an insertion tube is fixedly provided on the bottom surface of the supporting base plate, and the vertical marker is inserted into the insertion tube. When the concrete ground is laid, except for the vertical marker protruding above the ground, the rest is completely covered by the concrete ground; by setting the vertical marker, it is easy to locate the position of the jacking device, so that the jacking device can be removed, which is convenient and practical.

[0007] Preferably, a horizontal bar is placed at the high end of the upper jacking plate, and two limiting blocks are symmetrically arranged on both sides of the high end of the upper jacking plate to limit the horizontal bar. In actual use, the horizontal bar can be raised by at least one jacking device, and then the height of different jacking devices can be adjusted to make the horizontal bar horizontal. The concrete covers the jacking devices, and the upper surface of the horizontal bar is used as a reference plane to determine the level of the concrete ground, which facilitates the leveling of the concrete ground.

[0008] Preferably, the upper top plate has downwardly extending lower eaves on both sides, and the two side rods of the U-shaped support are rotatably installed on the inner side of the lower eaves; the lower eaves have a reinforcing effect to prevent the upper top plate from bending.

[0009] Preferably, the support base plate has upwardly extending upper eaves on both sides, and the two upper eaves limit the two sides of the U-shaped support rod; the upper eaves have a reinforcing effect and prevent the support base plate 1 from bending.

[0010] Preferably, the supporting base plate has a lower rectangular hole, and U-shaped plates with downward openings are installed on both sides of the lower rectangular hole. A groove is opened on one side of the bottom plate of the U-shaped plate. Threaded nails are pre-fixed on the ground, and the threaded nails pass through the threaded part of the groove and are threaded to a fastening nut. By connecting the fastening nut and the threaded nail, the supporting base plate is stably fixed on the ground, so as to achieve stable installation of the jack on the ground.

[0011] Preferably, the upper top plate has an upper rectangular hole corresponding to the position of the lower rectangular hole; this facilitates the installation and removal of the fastening nut.

[0012] Preferably, the outer side of the bottom rod of the U-shaped support is a wedge-shaped surface, and the end of the first adjusting screw touches the wedge-shaped surface; when the U-shaped support is in an inclined state, the wedge-shaped surface is close to a vertical state, which facilitates the end of the first adjusting screw to act stably on the wedge-shaped surface.

[0013] Preferably, a reinforcing plate is fixedly installed on the inner side of the rear baffle, and the reinforcing plate is threadedly connected to the first adjusting screw; this improves the stability of the threaded connection of the first adjusting screw.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. The present invention supports a base plate and an upper top plate that are hinged together, and a U-shaped support rod is hinged to the lower side of the upper top plate; a first adjusting screw is horizontally threaded onto the rear baffle, and the end of the first adjusting screw abuts against the bottom rod of the U-shaped support rod; when the first adjusting screw is rotated, the U-shaped support rod is driven to rotate, thereby adjusting the opening angle and height of the upper top plate, which is convenient and practical.

[0016] 2. When the angle between the support base plate and the upper top plate is less than or equal to 21°, the second adjusting screw is connected to the lower end near the upper top plate, and the bottom rod of the U-shaped support rod is slid out of the back plate. The second adjusting screw is then used for direct adjustment, which is more precise, convenient and practical. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of the front view angle of a jacking device for leveling concrete floors, provided in an embodiment of the present invention.

[0019] Figure 2 This is a structural schematic diagram of a jacking device for leveling concrete floors, shown from the rear view angle, provided in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the present invention, in which the first adjusting screw and the threaded nail are installed on the supporting base plate.

[0021] Figure 4 This is a schematic diagram of the structure for mounting threaded nails on a U-shaped plate in this invention.

[0022] Figure 5 This is a schematic diagram of the structure in which the upper top plate and the U-shaped support rod are installed together in this invention.

[0023] Figure 6 This is a schematic diagram of the U-shaped support rod in this invention.

[0024] Figure 7 This is a schematic diagram of the structure in this invention where two jacks support and place a horizontal bar.

[0025] Figure 8 for Figure 7 A magnified view of A in the middle.

[0026] Explanation of reference numerals in the attached drawings: 1-Support base plate, 11-Rear baffle, 111-Reinforcing plate, 12-Upper side eaves, 13-Lower rectangular hole, 14-U-shaped plate, 141-Slot, 2-Upper top plate, 21-Strip perforation, 22-Limiting block, 23-Lower side eaves, 24-Upper rectangular hole, 3-U-shaped support rod, 31-Wedge-shaped surface, 4-First adjusting screw, 5-Second adjusting screw, 6-Vertical marker, 7-Horizontal rod, 8-Threaded nail, 81-Fasting nut. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figures 1 to 8 As shown, this embodiment provides a jacking device for leveling concrete floors, including: a support base plate 1 fixedly installed on the ground, an upper jacking plate 2 hinged to one end of the support base plate 1, and a U-shaped support rod 3 hinged to the lower side of the upper jacking plate 2; the U-shaped support rod 3 is hinged at the middle position of the lower side of the upper jacking plate 2 to ensure good support. The other end of the support base plate 1 is provided with a rear baffle 11 that blocks the lower end of the U-shaped support rod 3. A first adjusting screw 4 is horizontally threaded onto the rear baffle 11, and the end of the first adjusting screw 4 abuts against the bottom rod of the U-shaped support rod 3; rotating the first adjusting screw 4 drives the U-shaped support rod 3 to rotate, adjusting the opening angle and height of the upper jacking plate 2. In this embodiment, the supporting base plate 1 and the upper top plate 2 are hinged together, and the lower side of the upper top plate 2 is hinged to a U-shaped support rod 3; the rear baffle 11 is horizontally threaded with a first adjusting screw 4, and the end of the first adjusting screw 4 abuts against the bottom rod of the U-shaped support rod 3; when the first adjusting screw 4 is rotated, the U-shaped support rod 3 is driven to rotate, thereby adjusting the opening angle and height of the upper top plate 2, which is convenient and practical.

[0030] Furthermore, two second adjusting screws 5 are symmetrically threaded on both sides of the upper top plate 2. The second adjusting screws 5 are located between the U-shaped support rod 3 and the lower end of the upper top plate 2. When the angle between the supporting base plate 1 and the upper top plate 2 is less than or equal to 21°, rotating the second adjusting screws 5 drives the upper top plate 2 to rotate, adjusting the opening angle and height of the upper top plate 2. In use, the upper top plate 2 is in an inclined state, with the second adjusting screws 5 close to the lower part of the upper top plate 2. When the angle between the supporting base plate 1 and the upper top plate 2 is less than or equal to 21°, the angle and height of the supporting base plate 1 and the upper top plate 2 change significantly when the first adjusting screw 4 extends by a unit length, resulting in imprecise adjustment. By connecting the second adjusting screws 5 near the lower part of the upper top plate 2 and simultaneously sliding the bottom rod of the U-shaped support rod 3 out of the rear baffle 11, the adjustment can be made directly using the second adjusting screws 5, which is more precise, convenient, and practical.

[0031] Furthermore, a vertical guide rod 6 is installed on the supporting base plate 1, and a strip-shaped through hole 21 corresponding to the position of the vertical guide rod 6 is provided on the bottom side of the upper jacking plate 2; an insertion tube is fixedly provided on the bottom surface of the supporting base plate 1, and the vertical guide rod 6 is inserted into the insertion tube. When the concrete ground is laid, except for the vertical guide rod 6 which protrudes above the ground, the rest is completely covered by the concrete ground; by setting the vertical guide rod 6, it is easy to locate the position of the jacking device, so that the jacking device can be removed, which is convenient and practical.

[0032] Furthermore, a horizontal bar 7 is placed at the high end of the upper jacking plate 2, and two limiting blocks 22 are symmetrically arranged on both sides of the high end of the upper jacking plate 2 to limit the horizontal bar 7. In actual use, the horizontal bar 7 can be raised by at least two jacking devices, and then the height of different jacking devices can be adjusted to make the horizontal bar 7 horizontal. The concrete covers the jacking devices, and the upper surface of the horizontal bar 7 is used as a reference plane to determine the level of the concrete ground, which facilitates the leveling of the concrete ground.

[0033] Furthermore, the upper top plate 2 is provided with downwardly extending lower eaves 23 on both sides, and the two side rods of the U-shaped support rod 3 are rotatably installed on the inner side of the lower eaves 23; the lower eaves 23 have a reinforcing function to prevent the upper top plate 2 from bending.

[0034] Furthermore, the support base plate 1 has upwardly extending upper eaves 12 on both sides. The two upper eaves 12 limit the two sides of the U-shaped support rod 3. The upper eaves 12 have a reinforcing effect and prevent the support base plate 1 from bending.

[0035] Furthermore, the supporting base plate 1 is provided with a lower rectangular hole 13, and U-shaped plates 14 with downward openings are installed on both sides of the lower rectangular hole 13. A groove 141 is opened on one side of the bottom plate of the U-shaped plate 14. Threaded nails 8 are pre-fixed on the ground, and the threaded nails 8 pass through the threaded part of the groove 141 and are threadedly connected to a fastening nut 81. By connecting the fastening nut 81 and the threaded nails 8, the supporting base plate 1 is stably fixed on the ground, thereby achieving stable installation of the jack on the ground.

[0036] Furthermore, the upper top plate 2 has an upper rectangular hole 24 corresponding to the position of the lower rectangular hole 13; this facilitates the installation and removal of the fastening nut 81.

[0037] Furthermore, the outer side of the bottom rod of the U-shaped support rod 3 is a wedge-shaped surface 31, and the end of the first adjusting screw 4 touches the wedge-shaped surface 31; when the U-shaped support rod 3 is in an inclined state, the wedge-shaped surface 31 is close to a vertical state, which makes it easier for the end of the first adjusting screw 4 to act stably on the wedge-shaped surface 31.

[0038] Furthermore, a reinforcing plate 111 is fixedly installed on the inner side of the rear baffle 11, and the reinforcing plate 111 is threadedly connected to the first adjusting screw 4; thereby improving the stability of the threaded connection of the first adjusting screw 4.

[0039] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A leveling device for concrete floors, characterized in that, include: A support base plate (1) fixedly installed on the ground, an upper top plate (2) hinged to one end of the support base plate (1), and a U-shaped support rod (3) hinged to the lower side of the upper top plate (2). The other end of the supporting base plate (1) is provided with a rear baffle (11) that blocks the lower end of the U-shaped support rod (3). The rear baffle (11) is horizontally threaded with a first adjusting screw (4). The end of the first adjusting screw (4) presses against the bottom rod of the U-shaped support rod (3). When the first adjusting screw (4) is rotated, the U-shaped support rod (3) is driven to rotate, thereby adjusting the opening angle and height of the upper top plate (2).

2. The leveling device for concrete floors as described in claim 1, characterized in that, The upper top plate (2) is symmetrically threaded with two second adjusting screws (5) on both sides. The second adjusting screws (5) are located between the U-shaped support rod (3) and the lower end of the upper top plate (2). When the angle between the support base plate (1) and the upper top plate (2) is less than or equal to 21°, the second adjusting screws (5) are rotated to drive the U-shaped support rod (3) to rotate, thereby adjusting the opening angle and height of the upper top plate (2).

3. A leveling device for concrete floors as described in claim 1, characterized in that, The support base plate (1) is equipped with a vertical marker (6), and the bottom side of the upper top plate (2) is provided with a strip-shaped through hole (21) corresponding to the position of the vertical marker (6); the bottom surface of the support base plate (1) is fixedly provided with an insertion tube, and the vertical marker (6) is inserted into the insertion tube.

4. A leveling device for concrete floors as described in claim 1, characterized in that, A horizontal bar (7) is placed at the high end of the upper top plate (2), and two limiting blocks (22) are symmetrically provided on both sides of the high end of the upper top plate (2) to limit the horizontal bar (7).

5. A leveling device for concrete floors as described in claim 1, characterized in that, The upper top plate (2) has downwardly extending lower eaves (23) on both sides, and the two side rods of the U-shaped support rod (3) are rotatably installed on the inner side of the lower eaves (23).

6. A leveling device for concrete floors as described in claim 1, characterized in that, The supporting base plate (1) has upper side eaves (12) extending upward on both sides, and the two upper side eaves (12) limit the two sides of the U-shaped support rod (3).

7. A leveling device for concrete floors as described in claim 1, characterized in that, The supporting base plate (1) is provided with a lower rectangular hole (13). U-shaped plates (14) with downward openings are installed on both sides of the lower rectangular hole (13). A groove (141) is opened on one side of the base plate of the U-shaped plate (14). Threaded nails (8) are pre-fixed on the ground. The threaded nails (8) pass through the threaded part of the groove (141) and are threaded to connect to a fastening nut (81).

8. A leveling device for concrete floors as described in claim 8, characterized in that, The upper top plate (2) has an upper rectangular hole (24) corresponding to the position of the lower rectangular hole (13).

9. A leveling device for concrete floors as described in claim 1, characterized in that, The outer side of the bottom rod of the U-shaped support rod (3) is a wedge-shaped surface (31), and the end of the first adjusting screw (4) touches the wedge-shaped surface (31).

10. A leveling device for concrete floors as described in claim 1, characterized in that, A reinforcing plate (111) is fixedly installed on the inner side of the rear baffle (11), and the reinforcing plate (111) is threadedly connected to the first adjusting screw (4).

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