A screed

Abstract

The utility model discloses a kind of levelers, including leveling disc, leveling screw sleeve, the leveling disc is fixed in leveling screw sleeve lower end, the lower surface of leveling disc is flush with leveling screw sleeve lower end, it is characterized by further including leveling lifting cylinder, leveling needle, lock rod, screw arc plate, retracted support arm, the screw arc plate of leveling lifting cylinder two sides is respectively provided with through leveling lifting cylinder, the lock rod is located in leveling lifting cylinder, the retracted support arm one end is hinged on lock rod, the other end is hinged in screw arc plate, the bottom of leveling lifting cylinder is provided with the limiting platform of the limiting lock rod downward movement distance, the screw arc plate of leveling screw sleeve and protruding leveling lifting cylinder is screw connection;The lower end of leveling lifting cylinder is fixed with leveling needle.The utility model can make the gap between leveling disc and ceramic tile be enough, then take down leveling needle by rotating leveling lifting cylinder, operation procedure is simple, greatly improve the disassembly efficiency of leveler.

Description

Technical Field

[0001] This utility model relates to the technical field of leveling devices, and in particular to a leveling device. Background Technology

[0002] In the field of decoration engineering, the flatness of floor or wall tiles is a key factor in ensuring project quality. Uneven surfaces not only affect aesthetics but also pose a risk of scratches. Screw-on leveling devices are easy to install and can effectively achieve the goal of aligning adjacent tiles. However, multiple leveling devices are needed around each tile, resulting in a large number of leveling devices required for a house. Existing screw-on leveling devices require loosening the screw sleeves to remove the leveling pins, which is time-consuming and inefficient due to the large quantity required. Furthermore, some workers do not prioritize speed, and during the removal process, slight chipping of the tile edges can easily occur. Utility Model Content

[0003] The purpose of this utility model is to solve the problems in the prior art by proposing a leveling device that solves the problems of inconvenient disassembly and low efficiency of the existing screw-cap type leveling device.

[0004] To achieve the above objectives, this utility model proposes a leveling device, comprising a leveling disc and a leveling screw sleeve. The leveling disc is fixed to the lower end of the leveling screw sleeve, and the lower surface of the leveling disc is flush with the lower end of the leveling screw sleeve. The device further comprises a leveling lifting cylinder, a leveling pin, a locking rod, a threaded arc plate, and a retractable support arm.

[0005] The leveling lifting cylinder has threaded arc plates on both sides that pass through it, and the locking rod is located inside the leveling lifting cylinder.

[0006] One end of the retractable support arm is hinged to the locking rod, and the other end is hinged to the threaded arc plate. The bottom of the leveling lifting cylinder is provided with a limiting platform to restrict the downward movement distance of the locking rod.

[0007] The leveling screw sleeve is threadedly connected to the threaded arc plate extending from the leveling lifting cylinder;

[0008] The lower end of the leveling lifting cylinder is fixed with a leveling pin.

[0009] Preferably, the leveling lifting cylinder is provided with shrinkage holes on both sides, and the threaded arc plate is located in the shrinkage holes.

[0010] Preferably, the lower end of the leveling lifting cylinder is provided with a horizontally arranged needle fixing side hole, and the lower side of the needle fixing side hole is provided with an opening.

[0011] Preferably, the leveling pin includes a slider, a lifting rod, and a leveling crossbar. The slider is inserted horizontally into the pin fixing side hole, the lifting rod is vertically fixed on the lower side of the slider, and the leveling crossbar is horizontally arranged at the lower end of the lifting rod.

[0012] Preferably, the boom is located in the opening.

[0013] Preferably, a limiting platform is provided at the bottom of the leveling lifting cylinder.

[0014] Preferably, the leveling screw sleeve is provided with an internal thread, and the outer arc surface of the threaded arc plate is provided with an external thread, the external thread engaging with the internal thread.

[0015] Preferably, the outer arc radius of the threaded arc plate is the same as the inner ring radius of the leveling threaded sleeve.

[0016] The beneficial effects of this utility model are as follows: This utility model allows the threads on the leveling screw sleeve to be quickly separated from the leveling lifting cylinder that fixes the leveling pin, which can provide sufficient gap between the leveling plate and the tile. The leveling pin can then be removed by rotating the leveling lifting cylinder. The operation process is simple and greatly improves the disassembly efficiency of the leveling device. Attached Figure Description

[0017] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features, wherein:

[0018] Figure 1 This is a three-dimensional schematic diagram of a leveling device according to this utility model;

[0019] Figure 2 This is an exploded view of a leveling device according to this utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the leveling plate and the leveling screw sleeve;

[0021] Figure 4 This is a 3D schematic diagram of the leveling lifting cylinder;

[0022] Figure 5 It is an assembly diagram of the locking rod, threaded arc plate, and retractable support arm;

[0023] Figure 6 It is a front sectional view of the locking rod, the threaded arc plate, and the retractable support arm;

[0024] Figure 7 This is a 3D diagram of a leveling needle.

[0025] In the diagram: 1-leveling plate, 2-leveling screw sleeve, 3-leveling lifting cylinder, 31-contraction hole, 32-pin fixing side hole, 33-opening, 34-limiting platform, 4-leveling pin, 41-slider, 42-hanging rod, 43-leveling crossbar, 5-locking rod, 6-threaded arc plate, 7-contraction support arm. Detailed Implementation

[0026] See Figures 1-6 This utility model discloses a leveling device, comprising a leveling disc 1 and a leveling screw sleeve 2. The leveling disc 1 is fixed to the lower end of the leveling screw sleeve 2, and the lower surface of the leveling disc 1 is flush with the lower end of the leveling screw sleeve 2. It also includes a leveling lifting cylinder 3, a leveling pin 4, a locking rod 5, a threaded arc plate 6, and a retractable support arm 7. Threaded arc plates 6 are respectively provided on both sides of the leveling lifting cylinder 3, passing through the cylinder. The locking rod 5 is located within the leveling lifting cylinder 3. One end of the retractable support arm 7 is hinged to the locking rod 5, and the other end is hinged to the threaded arc plate 6. A limiting platform 34 is provided at the bottom of the leveling lifting cylinder 3 to limit the downward movement distance of the locking rod 5. The limiting platform 34 restricts the downward movement distance of the locking rod 5, ensuring that the end of the retractable support arm 7 hinged to the threaded arc plate 6 is higher than the retractable support arm 7. Under the combined action of external extrusion and limiting platform 34, the end of the support arm 7 connected to the locking rod 5 is unable to move up and down. This keeps the threaded arc plate 6 stationary and prevents it from retracting into the contraction hole 31 on the leveling lifting cylinder 3, ensuring a reliable threaded connection between the threaded arc plate 6 and the leveling sleeve 2. When the locking rod 5 is pulled upward, the retracting support arm 7 will have a certain elastic deformation when it is in a horizontal state. When the end of the retracting support arm 7 that is hinged to the threaded arc plate 6 is lower than the end of the retracting support arm 7 that is connected to the locking rod 5, the locking rod 5 can slide freely upward, causing the threaded arc plate 6 to retract into the contraction hole 31 on the leveling lifting cylinder 3. At this time, the threaded arc plate 6 is disengaged from the leveling sleeve 2, so there is no need to rotate the leveling sleeve 2 anymore. After loosening, the leveler can be removed. The leveling screw sleeve 2 is threadedly connected to the threaded arc plate 6 extending from the leveling lifting cylinder 3; the lower end of the leveling lifting cylinder 3 is fixed with a leveling needle 4, which is inserted into the gap between two tiles to simultaneously lift the edges of the two tiles from below. As the leveling screw sleeve 2 is rotated, the leveling needle 4 rises, eventually making the edges of the two tiles flush.

[0027] It should be noted that, as Figure 4 As shown, the leveling lifting cylinder 3 has contraction holes 31 on both sides. The threaded arc plate 6 is located in the contraction hole 31. When the threaded arc plate 6 is located in the contraction hole 31, the threaded arc plate 6 is separated from the leveling screw sleeve 2, and the leveling screw sleeve 2 can move freely up and down along the leveling lifting cylinder 3. When the threaded arc plate 6 extends out of the contraction hole 31, the threaded arc plate 6 is threadedly connected to the leveling lifting cylinder 3.

[0028] Specifically, such as Figure 4 As shown, the lower end of the leveling lifting cylinder 3 is provided with a horizontally arranged needle fixing side hole 32. An opening 33 is provided below the needle fixing side hole 32. The opening 33 is to allow the lifting rod 42 of the leveling needle 4 to pass through, ultimately positioning the lifting rod 42 at the center of the lower end of the leveling lifting cylinder 3. Specifically, as... Figure 7As shown, the leveling pin 4 includes a slider 41, a lifting rod 42, and a leveling crossbar 43. The slider 41 is horizontally inserted into the pin fixing side hole 32. The lifting rod 42 is vertically fixed to the lower side of the slider 41, and the leveling crossbar 43 is horizontally positioned at the lower end of the lifting rod 42. It can be understood that the lifting rod 42 is located in the opening 33. During the installation of the leveling pin 4 into the lower end of the leveling lifting cylinder 3, the slider 41 is inserted into the pin fixing side hole 32 from the side, while the lifting rod 42 slides into the opening 33.

[0029] like Figure 4 and Figure 6 As shown, the bottom of the leveling lifting cylinder 3 is provided with a limiting platform 34. The limiting platform 34 can limit the downward movement distance of the locking rod 5, so that the end of the retractable support arm 7 that is hinged to the threaded arc plate 6 is higher than the end of the retractable support arm 7 that is connected to the locking rod 5. Under the combined action of external extrusion and the limiting platform 34, the locking rod 5 cannot move up and down. This keeps the threaded arc plate 6 stationary and prevents it from retracting into the retraction hole 31 on the leveling lifting cylinder 3, ensuring a reliable threaded connection between the threaded arc plate 6 and the leveling screw sleeve 2. When the locking rod 5 is pulled upward, the retractable support arm 7 will have a certain elastic deformation in the horizontal state. When the end of the retractable support arm 7 that is hinged to the threaded arc plate 6 is lower than the end of the retractable support arm 7 that is connected to the locking rod 5, the locking rod 5 can slide freely upward, causing the threaded arc plate 6 to retract into the retraction hole 31 on the leveling lifting cylinder 3. At this time, the threaded arc plate 6 is disengaged from the threaded leveling screw sleeve 2, so it is not necessary to rotate the leveling screw sleeve 2 anymore. After loosening, the leveler can be removed. It should be noted that the leveling screw sleeve 2 has an internal thread, and the outer arc surface of the threaded arc plate 6 has an external thread, which meshes with the internal thread. It should also be noted that the radius of the outer arc surface of the threaded arc plate 6 is the same as the inner radius of the leveling screw sleeve 2, thus allowing for a smooth threaded connection between the leveling screw sleeve 2 and the threaded arc plate 6.

[0030] The working process of this utility model:

[0031] In the operation of this utility model leveling device, before installation, first press the locking rod 5 down to the bottom, then insert the slider 41 into the pin fixing side hole 32 from the side, and finally position the hanging rod 42 at the center of the lower end of the leveling lifting cylinder 3. Then insert the leveling pin 4 into the gap between the tiles, and then rotate the leveling lifting cylinder 3 so that the leveling crossbar 43 at the lower end of the leveling pin 4 is perpendicular to the gap between the tiles. Then rotate the leveling screw sleeve 2 to lift the leveling lifting cylinder 3 upward, and at the same time, make the leveling pin 4 rise with the lower edge of the tile, so that the adjacent tiles are level. After a certain period of time, when removing the leveling device, first pull the locking rod 5 upward to separate the threaded connection between the leveling screw sleeve 2 and the threaded arc plate 6. At this time, the leveling screw sleeve 2 can slide up and down freely. Then, directly rotate the leveling lifting cylinder 3 to remove the leveling pin 4.

[0032] This utility model discloses a leveling device that allows the threads on the leveling screw sleeve 2 to be quickly separated from the leveling lifting cylinder 3 that fixes the leveling pin 4, thus creating a sufficient gap between the leveling plate 1 and the tile. The leveling pin 4 can then be removed by rotating the leveling lifting cylinder 3. The operation process is simple, greatly improving the disassembly efficiency of the leveling device and avoiding unnecessary damage to the tile caused by workers using brute force to rotate the leveling lifting cylinder 3 to remove the leveling pin 4 before there is sufficient gap between the leveling plate 1 and the tile.

[0033] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A leveling device, comprising a leveling disc and a leveling threaded sleeve, wherein the leveling disc is fixedly disposed at the lower end of the leveling threaded sleeve, and the lower surface of the leveling disc is flush with the lower end of the leveling threaded sleeve, characterized in that: It also includes a leveling lifting cylinder, leveling pin, locking rod, threaded arc plate, and retractable support arm. The leveling lifting cylinder has threaded arc plates on both sides that pass through it, and the locking rod is located inside the leveling lifting cylinder. One end of the retractable support arm is hinged to the locking rod, and the other end is hinged to the threaded arc plate. The bottom of the leveling lifting cylinder is provided with a limiting platform to restrict the downward movement distance of the locking rod. The leveling screw sleeve is threadedly connected to the threaded arc plate extending from the leveling lifting cylinder; The lower end of the leveling lifting cylinder is fixed with a leveling pin.

2. A leveling device as described in claim 1, characterized in that: The leveling lifting cylinder has contraction holes on both sides, and the threaded arc plate is located in the contraction holes.

3. A leveling device as described in claim 1, characterized in that: The lower end of the leveling lifting cylinder is provided with a horizontally arranged needle fixing side hole, and the lower side of the needle fixing side hole is provided with an opening.

4. A leveling device as described in claim 3, characterized in that: The leveling pin includes a slider, a lifting rod, and a leveling crossbar. The slider is inserted horizontally into the pin fixing side hole. The lifting rod is vertically fixed on the lower side of the slider, and the leveling crossbar is horizontally arranged at the lower end of the lifting rod.

5. A leveling device as described in claim 4, characterized in that: The boom is located in the opening.

6. A leveling device as described in claim 3, characterized in that: The bottom of the leveling lifting cylinder is equipped with a limiting platform.

7. A leveling device as described in claim 3, characterized in that: The leveling screw sleeve has an internal thread, and the outer arc surface of the threaded arc plate has an external thread, which meshes with the internal thread.

8. A leveling device as described in claim 7, characterized in that: The outer arc radius of the threaded arc plate is the same as the inner ring radius of the leveling threaded sleeve.

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