A positioning and leveling device for armor seams

Abstract

This utility model discloses a positioning and leveling device for armored seams, including a portal frame, a lifting screw, and a hook assembly. The upper crossbeam of the portal frame has a slot along its length. The hook assembly is located at one end of the lifting screw, and the other end of the lifting screw passes through the slot, allowing the lifting screw to move within it. Two adjusting nuts are provided on the lifting screw, and the upper crossbeam is located between the two adjusting nuts. This utility model has a simple structure, is easy to install and operate, and can quickly complete the leveling of armored seams, improving construction efficiency and shortening the construction cycle. It is suitable for leveling armored seams of different specifications and models.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a positioning and leveling device for armored seams. Background Technology

[0002] In the construction of large-area corundum-coated wear-resistant flooring, the installation accuracy of the armored seams has a significant impact on the flatness and service life of the floor. Traditional armored seam installation lacks specialized precision leveling devices and often relies on manual adjustments based on experience. This makes it difficult to guarantee the accuracy of the armored seam installation elevation and flatness, easily leading to deviations. Consequently, poor floor flatness affects floor quality, increases rework rates, prolongs the construction period, and raises construction costs.

[0003] CN217106011U discloses a positioning and leveling device for armor seams, including a device fixing plate, a slider fixing plate vertically slidably connected to the device fixing plate, and a leveling support plate vertically connected to the slider fixing plate. The leveling support plate has a central leveling plate groove, and a screw hole passing through the slider fixing plate and the leveling support plate, communicating with the leveling plate groove, is provided. This leveling device has a complex structure, is inconvenient to operate, has low adjustment efficiency, and makes it difficult to achieve precise control of the straightness of the armor seam. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention proposes a positioning and leveling device that can quickly and accurately adjust the elevation and flatness of armor seams, while also being easy to operate and improving construction efficiency.

[0005] The technical solution of this utility model is as follows: A positioning and leveling device for armor seams, comprising a portal frame, a lifting screw, and a hook assembly. The upper crossbeam of the portal frame is provided with a slot along its length. The hook assembly is located at the bottom end of the lifting screw. The other end of the lifting screw away from the hook assembly passes through the slot. The lifting screw can move within the slot. Two adjusting nuts are provided on the lifting screw, and the upper crossbeam is located between the two adjusting nuts.

[0006] In one embodiment, the hook assembly includes a hook connector and a hook, the hook connector being connected to the lifting screw, and the hook being mounted on the hook connector.

[0007] In use, one positioning and leveling device is installed at each end of each armored seam. A gantry support frame is erected on the base layer on both sides of the armored seam. First, loosen the adjusting nut at the top of the lifting screw, move the lifting screw down to the lower part of the armored seam's edge angle steel, then move the lifting screw upwards so that the hook catches the edge angle steel. With the assistance of a laser level, adjust the armored seam to be level with the ground elevation, then tighten the adjusting nut at the top of the lifting screw. Loosen the adjusting nut at the bottom of the lifting screw, allowing the lifting screw to move freely horizontally left and right within the groove to adjust the straightness of the armored seam. After adjustment, use a triangular steel bar positioning device to fix the armored seam, then remove the positioning and leveling devices.

[0008] In one embodiment, the hook connector includes a first side plate, a second side plate, a top plate, and a connecting screw. The first side plate and the second side plate are arranged in parallel. The top plate is fixed to the top of the first side plate and the second side plate. The connecting screw passes through the first side plate and the second side plate. The lifting screw is fixed to the top plate. The hook is mounted on the connecting screw.

[0009] In one embodiment, one side of the hook is connected to the connecting screw, and the other side of the hook is parallel to the ground.

[0010] Preferably, the included angle between the two sides of the hook does not exceed 90°.

[0011] In one embodiment, the number of hooks is two, and the two hooks are symmetrically arranged about the central axis of the lifting screw.

[0012] In one embodiment, the portal frame has a left leg and a right leg, and the upper crossbeam is located at the top of the left leg and the right leg.

[0013] In one embodiment, the bottom of the left and right support legs is provided with support leg bases, and the support leg bases are provided with screw holes. The design of the portal frame and support leg bases ensures the stability of the positioning and leveling device during the leveling process, and avoids affecting the leveling accuracy due to shaking.

[0014] This invention, when used in conjunction with a laser level, can quickly and accurately adjust the elevation and flatness of armor seams, controlling the flatness error of the armor seams within 2mm / 2m and the overlap error between the center line and the measurement line within ±1mm, effectively reducing rework caused by installation errors.

[0015] This utility model has a simple structure, is easy to install and operate, and can quickly complete the leveling work of armored joints, improve construction efficiency, shorten the construction cycle, and is suitable for leveling armored joints of different specifications and models. It can be widely used in the construction of expansion joints in large-area diamond abrasive floors in industrial plants, logistics warehouses, large shopping malls, parking lots and other places. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall assembly of the positioning and leveling device in use in the embodiment;

[0017] Figure 2 This is a side view of the positioning and leveling device in use in the embodiment;

[0018] Figure 3 This is a structural diagram of the positioning and leveling device in the embodiment;

[0019] In the diagram: 1. Portal support frame; 2. Lifting screw; 101. Upper crossbeam; 102. Left support leg; 103. Right support leg; 3. Groove; 4. First adjusting nut; 5. Second adjusting nut; 6. Hook connector; 601. First side plate; 602. Second side plate; 603. Top plate; 604. Connecting screw; 7. Hook; 8. Support leg base; 9. Self-tapping screw; 10. Armor seam; 11. Edge guard angle steel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figures 1 to 2As shown, this embodiment discloses a positioning and leveling device for armor seams, including a portal frame 1, a lifting screw 2, and a hook assembly. The portal frame 1 includes a left support leg 102, a right support leg 103, and an upper crossbeam 101. The upper crossbeam 101 is located at the top of the left support leg 102 and the right support leg 103. The upper crossbeam 101 has a slot 3 along its length. The hook assembly 6 is located at the bottom end of the lifting screw 2. The other end of the lifting screw 2 passes through the slot 3, and the lifting screw 2 moves within the slot 3. The lifting screw 2 is provided with a first adjusting nut 4 and a second adjusting nut 5. The first adjusting nut 4 is located above the second adjusting nut 5, and the upper crossbeam 101 is located between the first adjusting nut 4 and the second adjusting nut 5.

[0023] In this embodiment, the hook assembly includes a hook connector 6 and a hook 7. The hook connector 6 includes a first side plate 601, a second side plate 602, a top plate 603, and a connecting screw 604. The first side plate 601 and the second side plate 602 are arranged in parallel. The top plate 603 is fixed to the top of the first side plate 601 and the second side plate 602. The cross-section of the hook connector 6 is U-shaped. A screw hole is opened in the middle of the first side plate 601 and the second side plate 602 of the hook connector 6. The connecting screw 604 is installed horizontally between the first side plate 601 and the second side plate 602. The lifting screw 2 is fixedly connected to the top plate 603. The hook 7 is installed on the connecting screw 604.

[0024] In this embodiment, there are two hooks 7, and the two hooks 7 are symmetrically arranged about the central axis of the lifting screw 2.

[0025] In this embodiment, the included angle between the two sides of the hook 7 is less than 90°, one side of the hook 7 is connected to the connecting screw 604 and locked with a nut, and the other side of the hook 7 is parallel to the ground.

[0026] In this embodiment, the bottom of the left support leg 102 and the right support leg 103 are provided with support leg bases 8, and the support leg bases 8 are provided with screw holes. The design of the portal frame 1 and the support leg bases 8 ensures the stability of the positioning and leveling device during the leveling process and avoids affecting the leveling accuracy due to shaking.

[0027] like Figure 3As shown, this utility model is installed at both ends of the armored seam 10. The left support leg 102 and right support leg 103 of the portal frame 1 are respectively mounted on the base layer on both sides of the armored seam 10. During installation, ensure that the support leg base 8 of this utility model is in close contact with the base layer. If the support leg cannot be installed flat and stable due to the unevenness of the ground base layer, the portal frame 1 can be fixed to the ground using self-tapping screws 9 through the four screw holes reserved on the support leg base 8. By rotating the first adjusting nut 4 and the second adjusting nut 5 on the lifting screw 2, the height of the armored seam 10 is slowly adjusted to match the design elevation of the ground. During the adjustment process, a high-precision level is used to monitor the flatness of the armored seam 10 in real time. According to the level indicator, the adjustment mechanism is finely adjusted to control the flatness error of the armored seam 10 within 2mm / 2m, and the center line coincides with the measurement and layout position with an error within ±1mm.

[0028] When performing positioning and leveling work, first loosen the first adjusting nut 4 on the upper part of the lifting screw 2, move the lifting screw 2 down to the bottom of the guard angle steel 11 of the armored seam 10, and then move the lifting screw 2 upward so that the hook 7 hooks the guard angle steel 11. With the assistance of a laser level, adjust the armored seam 10 to be level with the ground elevation, and then tighten the first adjusting nut 4 on the upper part of the lifting screw 2. Loosen the second adjusting nut 5 on the lower part of the lifting screw 2 so that the lifting screw 2 can move freely horizontally in the left and right directions within the groove 3 to adjust the straightness of the armored seam 10.

[0029] Before installing the armor seam 10 and leveling device, the ground base must be cleaned to remove debris, dust, oil, etc., ensuring a clean and tidy surface. A level instrument should be used to measure the flatness of the base. Any uneven areas should be repaired with cement mortar to ensure the flatness deviation is controlled within ±5mm, guaranteeing a level installation of the leveling device.

[0030] After the initial adjustment of the armored joint 10, a triangular steel bar positioning device is used to fix it, ensuring that it does not shift or deform during concrete pouring. Support points are evenly set every 1.5m on the other side of the armored joint where concrete was poured first. Short threaded steel bars with a diameter of not less than 12mm are driven into the ground base. Two short steel bars are welded crosswise at the top and bottom of each support point; one is inserted obliquely into the bottom base of the armored joint 10, and the other is welded to the armored joint steel plate for fixation. When fixing the armored joint, attention should be paid to adjusting its position and angle to ensure that the center line of the armored joint coincides with the control line and is perpendicular to the base surface. After adjustment, the fixation of the armored joint 10 is checked again to ensure that it will not loosen during subsequent construction. After it is securely fixed, the positioning and leveling device is removed.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning and levelling device for a sheathed joint, characterised in that: The system includes a portal frame (1), a lifting screw (2), and a hook assembly. The upper crossbeam (101) of the portal frame (1) has a slot (3) along its length. The hook assembly is located at the bottom end of the lifting screw (2). The other end of the lifting screw (2) away from the hook assembly passes through the slot (3). The lifting screw (2) can move within the slot (3). The lifting screw (2) is provided with two adjusting nuts. The upper crossbeam (101) is located between the two adjusting nuts.

2. The positioning and leveling device for armor seams according to claim 1, characterized in that: The hook assembly includes a hook connector (6) and a hook (7). The hook connector (6) is connected to the lifting screw (2), and the hook (7) is installed on the hook connector (6).

3. A positioning and levelling device for a sheathed joint according to claim 2, characterised in that: The hook connector (6) includes a first side plate (601), a second side plate (602), a top plate (603), and a connecting screw (604). The first side plate (601) and the second side plate (602) are arranged in parallel. The top plate (603) is fixed to the top of the first side plate (601) and the second side plate (602). The connecting screw (604) is arranged through the first side plate (601) and the second side plate (602). The lifting screw (2) is fixed on the top plate (603). The hook (7) is installed on the connecting screw (604).

4. A positioning levelling device for a sheathed joint according to claim 3, characterised in that: One side of the hook (7) is connected to the connecting screw (604), and the other side of the hook (7) is parallel to the ground.

5. A positioning and levelling device for a sheathed joint according to claim 4, characterised in that: The number of hooks (7) is two, and the two hooks (7) are symmetrically arranged about the central axis of the lifting screw (2).

6. The positioning and leveling device for armor seams according to claim 1, characterized in that: The portal frame (1) is provided with a left support leg (102) and a right support leg (103), and the upper crossbeam (101) is located at the top of the left support leg (102) and the right support leg (103).

7. A positioning and levelling device for a sheathed joint according to claim 6, characterised in that: The left support leg (102) and the right support leg (103) are provided with support leg bases (8) at their bottoms, and the support leg bases (8) are provided with screw holes.

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