A granite paving butt joint positioning device

Abstract

The utility model relates to the technical field of municipal construction, concretely is a kind of granite paving joint positioning device, including cross-shaped bearing frame, joint positioning mechanism being located on bearing frame, joint positioning mechanism includes respectively being located on the two-way synchronous drive assembly of bearing frame horizontal direction side and longitudinal side, two telescopic positioning components being symmetrically located on two-way synchronous drive assembly, joint assembly being located on telescopic positioning component;Two-way synchronous drive assembly and two telescopic positioning components transmission connection drive two positioning components to each other close or far away. Through the two-way synchronous drive assembly of horizontal direction and longitudinal direction symmetry arrangement, drive two telescopic positioning components synchronous reverse movement, cooperate the scale line on bearing frame, expansion plate and joint board, solve the problem of traditional manual visual non-quantitative standard, ensure the straightness of horizontal direction, longitudinal joint and spacing consistency;Joint assembly adopts gear and rack transmission structure, realizes the trace sliding adjustment of joint board, improves positioning accuracy.

Description

Technical Field

[0001] This utility model relates to the field of municipal construction technology, specifically a granite paving joint positioning device. Background Technology

[0002] In municipal construction, landscaping, and road paving projects, the paving quality of granite slabs directly affects the overall aesthetics and structural stability, with joint accuracy being one of the key indicators. Currently, joint positioning in granite paving largely relies on manual visual inspection or simple tools (such as measuring tapes and chalk lines), which presents the following problems:

[0003] 1. Insufficient precision: Manual visual inspection is easily affected by subjective factors, making it difficult to guarantee the straightness and spacing of the horizontal and vertical joints, resulting in misalignment of the paving slabs and uneven gaps after installation, affecting aesthetics and structural stability;

[0004] 2. Cumbersome adjustment: Existing tools mostly adjust in one direction, requiring repeated adjustments to the horizontal and vertical positions, resulting in complicated operation steps and low efficiency;

[0005] 3. Poor adaptability: It cannot flexibly adjust the positioning height and range according to the thickness and size of the granite slabs, resulting in weak versatility. Utility Model Content

[0006] The purpose of this invention is to provide a granite paving joint positioning device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a granite paving joint positioning device, comprising a cross-shaped support frame and a joint positioning mechanism mounted on the support frame. The joint positioning mechanism includes a bidirectional synchronous drive assembly mounted on the transverse and longitudinal sides of the support frame, two retractable positioning assemblies symmetrically mounted on the bidirectional synchronous drive assembly, and a joint positioning assembly mounted on the retractable positioning assembly. The bidirectional synchronous drive assembly is connected to the two retractable positioning assemblies in a transmission manner, causing the two positioning assemblies to move closer to or further away from each other.

[0008] Furthermore, the bidirectional synchronous drive assembly includes bidirectional screws and a handwheel; the two bidirectional screws are respectively rotatably connected to the transverse and longitudinal sides of the support frame, and the handwheel is located at one end of the bidirectional screws.

[0009] Furthermore, the retractable positioning assembly includes a slider threadedly connected to a bidirectional screw, a fixed cylinder disposed at the bottom of the slider, and a telescopic plate located inside the fixed cylinder and slidingly engaged with the fixed cylinder.

[0010] Furthermore, the seam assembly includes a positioning seat located at the bottom of the telescopic plate and a seam plate slidably connected to the positioning seat; a rotating shaft is rotatably connected to the seam plate, a gear located inside the positioning seat is provided on the rotating shaft, and a rack that meshes with the gear is provided at the bottom of the seam plate.

[0011] Furthermore, the transverse and longitudinal sides, the telescopic plate, and the seam plate of the support frame are all provided with scale lines.

[0012] Furthermore, locking bolts are provided on the handwheel, the fixed cylinder, and the rotating shaft.

[0013] Furthermore, the support frame is equipped with a level and a lifting handle on its lateral side.

[0014] This utility model of a granite paving joint positioning device addresses the shortcomings of existing technologies by optimizing the structure and integrating functions, and has the following beneficial effects:

[0015] 1. This utility model uses a bidirectional synchronous drive component that is symmetrically arranged in the horizontal and vertical directions to drive two retractable positioning components to move synchronously in opposite directions. In conjunction with the bearing frame, telescopic plate, and scale lines on the seam plate, it can realize the quantitative adjustment of the seam spacing, solving the problem of the lack of quantitative standards in traditional manual visual inspection, and ensuring the straightness and spacing consistency of the horizontal and vertical seams. The seam assembly adopts a gear and rack transmission structure, which can realize the micro-sliding adjustment of the seam plate. Combined with the scale lines, it can accurately control the seam deviation and further improve the positioning accuracy.

[0016] 2. The bidirectional synchronous drive assembly drives the bidirectional screw to rotate via a handwheel, which can simultaneously adjust the distance between the two telescopic positioning components without the need for separate adjustments, reducing operation steps and improving adjustment efficiency. In the telescopic positioning component, the sliding cooperation between the telescopic plate and the fixed cylinder can quickly adjust the height of the joint assembly to adapt to granite slabs of different thicknesses without the need to change tools, making operation flexible. The lifting handle on the support frame facilitates the handling and movement of the device, which can be quickly transferred to different paving locations, saving labor time.

[0017] 3. The bidirectional screw reverse transmission design can cover the jointing requirements of granite slabs of different sizes. With the help of scale lines, it can accurately match the joint spacing required by the design (such as 5mm, 10mm, etc.), and is suitable for a variety of paving scenarios. The height adjustment range of the telescopic plate can be flexibly adjusted according to the thickness of the granite, without the need to replace the device due to changes in slab specifications, thus reducing construction costs.

[0018] 4. The locking bolts on the handwheel, fixed cylinder, and rotating shaft can lock the position of each component after adjustment, preventing displacement caused by external forces during paving and ensuring stable positioning. The level on the support frame can detect whether the device is level in real time, ensuring the accuracy of the joint reference and reducing positioning deviation caused by device tilt from the source.

[0019] 5. The overall structure adopts a cross-shaped support frame as the support base, which is compact and the functions of each component are clearly defined (the bidirectional synchronous drive component is responsible for spacing adjustment, the telescopic positioning component is responsible for height adaptation, and the seam alignment component is responsible for precise alignment), making it easy to assemble and maintain; all functional components are integrated into one, requiring no additional auxiliary tools, which lowers the technical threshold for operators and facilitates promotion and application.

[0020] In summary, this device effectively solves the problems of low joint accuracy and cumbersome operation in granite paving by precise adjustment, quantitative control, flexible adaptation and stable positioning, and significantly improves paving quality and construction efficiency. Attached Figure Description

[0021] Fig. 1 This is a structural diagram of the present invention;

[0022] Fig. 2 This is a partial structural diagram of the present utility model;

[0023] Fig. 3 This is a cross-sectional view of the retractable positioning component of this utility model.

[0024] In the picture:

[0025] 1. Support frame; 2. Double-acting screw; 3. Handwheel; 4. Slider; 5. Fixed cylinder; 6. Telescopic plate; 7. Positioning seat; 8. Joint plate; 9. Rotating shaft; 10. Gear; 11. Rack; 12. Scale line; 13. Locking bolt; 14. Level; 15. Lifting handle. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description is provided in conjunction with the appendix. Figs. 1-3 The present invention will be further described in detail below, including its specific application scenarios.

[0027] This utility model discloses a granite paving joint positioning device, which aims to solve the problems of low joint accuracy and cumbersome operation in the granite paving process. Its core structure includes a cross-shaped support frame 1 and a joint positioning mechanism set on the support frame 1, as detailed below:

[0028] The cross-shaped support frame 1 serves as the support base for the device. It has a cross-shaped structure, consisting of a horizontal side and a vertical side, which are perpendicular to each other and fixedly connected. A level 14 (used to check whether the device is level and ensure accurate positioning) and a lifting handle 15 (for easy carrying and moving of the device) are installed on the horizontal side.

[0029] The seam positioning mechanism includes a bidirectional synchronous drive component, a retractable positioning component, and a seam positioning component, which work together to achieve horizontal and vertical seam positioning adjustment.

[0030] The bidirectional synchronous drive assembly is used to drive two retractable positioning components to move in opposite directions (closer or farther apart) in the lateral or longitudinal direction. It includes a bidirectional screw 2 and a handwheel 3. The two bidirectional screws 2 are rotatably connected to the inside of the lateral and longitudinal sides of the support frame 1 through bearings (the bidirectional screw on the lateral side controls the lateral displacement, and the bidirectional screw on the longitudinal side controls the longitudinal displacement). The handwheel 3 is fixed to one end of the bidirectional screw 2 and is used to manually drive the screw to rotate. The handwheel 3 is provided with a locking bolt 13, which can be tightened to fix the bidirectional screw 2 and prevent it from loosening during the positioning process.

[0031] The retractable positioning component is used to adjust the height of the joint assembly (to adapt to granite of different thicknesses) and moves with the bidirectional synchronous drive assembly. It includes a slider 4, a fixed cylinder 5, and a telescopic plate 6. Each bidirectional screw 2 is provided with two sliders 4, and the sliders 4 are threadedly connected to the bidirectional screw 2 (the threads at both ends of the bidirectional screw are in opposite directions, so the two sliders can move closer or further away synchronously when rotated). The fixed cylinder 5 is vertically fixed to the bottom of the slider 4, and the telescopic plate 6 is inserted into the fixed cylinder 5 and slides against the wall of the fixed cylinder 5 (it can extend and retract in the vertical direction). The fixed cylinder 5 is provided with a locking bolt 13, which, when tightened, can fix the telescopic plate 6 and lock the height.

[0032] The joint alignment assembly is used to align the joints of granite and includes a positioning seat 7, a joint alignment plate 8, a rotating shaft 9, a gear 10, and a rack 11. The positioning seat 7 is fixed to the bottom of the telescopic plate 6, and the joint alignment plate 8 is laterally slidably connected to the bottom of the positioning seat 7 (which can be finely adjusted along the length of the bidirectional screw). The rotating shaft 9 is laterally rotatably connected to the positioning seat 7 via a bearing. The gear 10 is fixed to the part of the rotating shaft 9 located inside the positioning seat 7, and the rack 11 is fixed to the top of the joint alignment plate 8 and meshes with the gear 10 (when the rotating shaft is rotated, the gear drives the rack to move, thereby driving the joint alignment plate to slide laterally). The rotating shaft 9 is provided with a locking bolt 13, which, when tightened, can fix the rotating shaft 9 and lock the position of the joint alignment plate 8.

[0033] The transverse and longitudinal sides of the support frame 1, the telescopic plate 6, and the seam plate 8 are all equipped with scale lines 12, which are used to quantitatively adjust the distance (such as the slider spacing driven by the bidirectional screw, the height of the telescopic plate, and the fine adjustment distance of the seam plate) to improve the positioning accuracy.

[0034] The working process of this utility model:

[0035] The use of this device needs to be tailored to the specific scenario of granite paving. The specific operation is as follows:

[0036] 1. The operator uses handle 15 to move the device to the joint position of the granite to be paved and places it on the already paved granite surface. Observe the level 14 on the horizontal edge. If the bubble is not centered, adjust it to ensure that the device is level and avoid positioning errors caused by tilting.

[0037] 2. Determine the horizontal or vertical alignment reference spacing based on the dimensions of the granite to be aligned (e.g., slab width). To adjust the horizontal spacing, loosen the locking bolt 13 on the horizontal edge handwheel 3, and rotate the handwheel 3 to drive the double-acting screw 2. At this time, the two sliders 4 will move synchronously closer or further apart along the horizontal edge. By observing the scale line 12 on the horizontal edge of the support frame 1, control the spacing between the two sliders 4 to match the designed alignment spacing of the granite slab. After reaching the target spacing, tighten the locking bolt 13 on the handwheel 3 to fix the double-acting screw 2. The vertical spacing adjustment is similar; rotate the vertical edge handwheel 3 and use the vertical scale line 12 to control the spacing of the sliders 4. After completion, tighten the corresponding locking bolt 13.

[0038] 3. Next, adjust the height of the joint assembly according to the thickness of the granite so that the bottom of the joint plate 8 fits against one side of the bottom of the granite; loosen the locking bolt 13 on the fixing cylinder 5, slide the telescopic plate 6 up and down, and observe the height adjustment through the scale line 12 on the telescopic plate 6; after the height is determined, tighten the locking bolt 13 on the fixing cylinder 5 to fix the telescopic plate 6. After completing the coarse adjustment, fine-tune the joint plate 8 through the joint assembly to ensure that it is accurately aligned with the granite joint; loosen the locking bolt 13 on the rotating shaft 9, rotate the rotating shaft 9, the gear 10 drives the rack 11 to move, and then drive the joint plate 8 to slide laterally along the positioning seat 7; observe the sliding distance through the scale line 12 on the joint plate 8, adjust it, and then tighten the locking bolt 13 on the rotating shaft 9 to fix the joint plate 8.

[0039] 4. After the device is fixed, place the granite slab to be laid, using the edge of the joint plate 8 as a reference, so that the edge of the slab is aligned with the joint plate 8, and the joint positioning is completed; repeat the above steps to complete the laying of subsequent slabs in sequence.

Claims

1. A granite paving joint positioning device, comprising a cross-shaped support frame (1) and a joint positioning mechanism disposed on the support frame (1), characterized in that, The seam positioning mechanism includes a bidirectional synchronous drive assembly respectively located on the transverse and longitudinal sides of the support frame (1), two retractable positioning assemblies symmetrically located on the bidirectional synchronous drive assembly, and a seam positioning assembly located on the retractable positioning assembly; the bidirectional synchronous drive assembly is connected to the two retractable positioning assemblies in a transmission manner, causing the two positioning assemblies to move closer to or further away from each other.

2. The seam positioning device as described in claim 1, characterized in that, The bidirectional synchronous drive assembly includes a bidirectional screw (2) and a handwheel (3); the two bidirectional screws (2) are respectively rotatably connected to the transverse and longitudinal sides of the support frame (1), and the handwheel (3) is located at one end of the bidirectional screw (2).

3. The seam positioning device as described in claim 2, characterized in that, The retractable positioning assembly includes a slider (4) threaded onto a bidirectional screw (2), a fixed cylinder (5) located at the bottom of the slider (4), and a telescopic plate (6) located inside the fixed cylinder (5) and slidingly engaged with the fixed cylinder (5).

4. The seam positioning device as described in claim 3, characterized in that, The seam assembly includes a positioning seat (7) located at the bottom of the telescopic plate (6) and a seam plate (8) slidably connected to the positioning seat (7); a rotating shaft (9) is rotatably connected to the seam plate (8), a gear (10) located inside the positioning seat (7) is provided on the rotating shaft (9), and a rack (11) meshing with the gear (10) is provided at the bottom of the seam plate (8).

5. The seam positioning device as described in claim 4, characterized in that, The transverse and longitudinal sides of the support frame (1), the telescopic plate (6), and the seam plate (8) are all provided with scale lines (12).

6. The seam positioning device as described in claim 5, characterized in that, Locking bolts (13) are provided on the handwheel (3), the fixed cylinder (5), and the rotating shaft (9).

7. The seam positioning device as described in claim 1, characterized in that, The support frame (1) is equipped with a level (14) and a lifting handle (15) on its transverse side.

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