A double-pole traction long-size structure for large-area leveling of diamond floor

Abstract

The utility model relates to concrete long ruler leveling device technical field, especially disclose a kind of double-pole traction long ruler structure for large-area paving of corundum terrace, including long ruler main body, at least two main operating rods arranged along the length direction of long ruler main body, at least two main operating rods are used to single-person operation or many people collaborative operation long ruler main body;Any the main operating rod is equipped with two first drag hook components, and the first drag hook component forms multiple-point traction structure between main operating rod and long ruler main body.This structure is adapted to single-person or many people operation by at least two main operating rods, and the two first drag hook components of each operating rod form multiple-point traction, enhance the stability and controllability of long ruler main body, facilitate large-area paving of corundum terrace, improve construction efficiency and leveling accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete long ruler leveling devices, and in particular discloses a double-rod traction long ruler structure for large-area paving of emery concrete floors. Background Technology

[0002] In the construction of emery aggregate flooring, large-area leveling operations often face numerous challenges: traditional tools are mostly single-bar operation, making them difficult to adapt to different area scenarios, and resulting in poor flexibility for single or multiple operators; single-point traction easily leads to concentrated force on the long ruler, causing localized deformation, making it difficult to maintain levelness, resulting in low floor flatness, significant height differences, and high construction difficulty and low efficiency. When the length of the long ruler varies, the existing layout is unreasonable. 1-3m long rulers are prone to tilting due to uneven force application, resulting in insufficient accuracy in small areas; 3-6m long rulers are too long, and single or double operators may apply insufficient or uneven force, easily leading to localized unevenness in large areas. In addition, the operating structure has poor stability, the main operating rod is prone to wobbling, there is a lack of auxiliary adjustment parts, resulting in large errors; the hook angle design is unreasonable, resulting in low force efficiency; the materials and structure of the long ruler and operating rod are of poor quality, making them heavy, not durable, and uncomfortable to operate, with cumbersome connection structures that easily interrupt construction, affecting quality and schedule. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a double-rod traction long ruler structure for large-area paving of corundum flooring.

[0004] To achieve the above objectives, this utility model provides a double-bar traction long ruler structure for large-area paving of corundum flooring, comprising a long ruler body and at least two main operating rods arranged along the length of the long ruler body. The at least two main operating rods are used for single-person operation or multi-person collaborative operation of the long ruler body. Each of the main operating rods is equipped with two first hook assemblies, which enable the main operating rod and the long ruler body to form a multi-point traction structure.

[0005] This structure enables single-person or multi-person collaborative operation through at least two main operating levers, adapting to different construction scenarios and enhancing operational flexibility. Each main operating lever is equipped with two first hook components to form a multi-point traction structure, which can distribute the force on the main body of the long ruler, avoid excessive local stress leading to deformation, and ensure that the main body of the long ruler always remains in a horizontal state. This significantly improves the flatness of large-area emery flooring, reduces height differences caused by improper operation, and at the same time, multi-point traction makes operation more stable, reduces construction difficulty, and improves work efficiency.

[0006] Furthermore, when the length of the main body of the ruler is 1-3m, the number of main operating levers is set to two, and the two main operating levers are symmetrically arranged at the 1 / 4 length position near the end of the main body of the ruler.

[0007] When the main body of the ruler is 1-3m long, the two main operating rods are symmetrically positioned at the 1 / 4 length position near the end. This layout conforms to the principles of mechanics, enabling the operator to apply force more evenly, preventing the main body of the ruler from tilting due to uneven force, ensuring that the ruler remains horizontal during the paving process, improving the paving accuracy of small-area emery flooring, and the symmetrical arrangement makes it easier for a single person to maintain balance, reducing operational errors, speeding up the construction progress, and improving the construction quality.

[0008] Furthermore, when the length of the main body of the ruler is 3-6m, the number of main operating levers is configured to be four, with the four main operating levers arranged in pairs for multiple people to operate in coordination.

[0009] When the main body of the long ruler is 3-6m long, the four main operating rods are arranged in pairs for multiple people to operate together, so as to reasonably distribute the operating pressure and avoid insufficient or uneven force due to the excessive length of the long ruler when operating alone or in pairs. Multiple people working together can accurately control the horizontal movement of the main body of the long ruler, ensuring the consistency of the emery flooring paving over a large area and preventing local unevenness. At the same time, group operation improves coordination efficiency, shortens construction time, and enhances construction safety.

[0010] Furthermore, a connecting rod is fixed between the two main operating levers in the same group, and an auxiliary operating lever is provided on the connecting rod. The connecting rod is fixed perpendicularly to the main operating lever and the auxiliary operating lever respectively. The auxiliary operating lever is equipped with two second hook assemblies, which are used to assist in adjusting the horizontality of the connecting rod.

[0011] A connecting rod is used to fix the main operating levers in the same group, and an auxiliary operating lever is installed on the connecting rod. All three are vertically fixed to form a stable frame structure, improving overall rigidity and preventing the main operating levers from shaking during operation. The second hook assembly of the auxiliary operating lever helps to adjust the levelness of the connecting rod, thereby ensuring that the main body of the long ruler is level. This makes the paving process more precise, reduces errors caused by structural instability, and the vertical structure facilitates the operator's application of force, improves operational coordination, and further enhances the paving quality and efficiency of the diamond aggregate flooring.

[0012] Furthermore, the hook assembly has a first connection point and a second connection point. The first connection point is located at the middle of the operating rod, and the second connection point is located on the corresponding long ruler body and connecting rod. The connection direction between the second connection point and the first connection point forms an angle of 30°-60° with the length direction of the long ruler body.

[0013] The first and second connection points of the hook assembly are connected at an angle of 30°-60° to the length of the main body of the ruler. This angle setting can effectively decompose the operator's pulling force into horizontal and vertical forces. The vertical force can help stabilize the height of the main body of the ruler, while the horizontal force can propel the ruler to move smoothly, achieving efficient use of force and reducing waste. At the same time, the angle design makes traction easier, and the operator can easily control the speed and direction of the ruler's movement, improving the leveling accuracy and operating comfort.

[0014] Furthermore, the main body of the ruler is made of aluminum alloy, and the cross-section of the main body of the ruler is I-shaped.

[0015] The main body of the long ruler is made of aluminum alloy with an I-shaped cross-section. Aluminum alloy is high in strength and light in weight, making it easy to handle and operate, reducing the physical burden on operators. The I-shaped cross-section saves materials and reduces costs while ensuring structural rigidity. In addition, the I-shaped structure has good bending resistance and can withstand the pressure during the paving process without easily deforming, ensuring that the main body of the long ruler always remains straight, improving the flatness of the emery floor and extending its service life.

[0016] Furthermore, the operating rod is a hollow steel tube structure with an outer diameter of 28-35mm and a length of 1.2-1.8m, and its surface is provided with anti-slip texture.

[0017] The operating lever is a hollow steel tube structure with an outer diameter of 28-35mm and a length of 1.2-1.8m. The hollow design reduces weight while ensuring strength, the suitable outer diameter facilitates gripping, and the length is ergonomically designed to reduce arm fatigue during operation. The surface's anti-slip texture increases hand friction, preventing slippage and ensuring precise force application. It also prevents the main body of the ruler from wobbling due to hand slippage, improving operational stability, ensuring the quality of the emery floor paving, and enhancing operational safety.

[0018] Furthermore, the auxiliary operating lever has an operating handle at its end away from the connecting rod. The operating handle is made of rubber and has a raised anti-slip structure on its surface.

[0019] The rubber operating handle at the end of the auxiliary operating lever features a raised anti-slip structure. The rubber material provides a comfortable grip, reducing hand pressure and minimizing fatigue during extended use. The raised anti-slip structure increases friction between the hand and the operating handle, preventing slippage and ensuring stable control of the auxiliary operating lever. This allows for precise adjustment of the connecting rod's level, ensuring the main body of the ruler remains level and improving operational accuracy. Simultaneously, the rubber material's elasticity cushions impacts during operation, enhancing comfort and reducing errors.

[0020] Furthermore, the long ruler body has wear-resistant ends at both ends, which are made of stainless steel and are fixedly connected to the ends of the long ruler body by bolts.

[0021] The long ruler features stainless steel wear-resistant ends at both ends, secured with bolts. The high wear resistance of stainless steel allows it to withstand friction and impact with the ground or other objects during paving, preventing wear and deformation at the ends and extending its lifespan. The bolted fixing method facilitates end replacement after wear, reducing maintenance costs. Simultaneously, the wear-resistant ends ensure a flat finish at the ends of the ruler, preventing deformation from affecting paving accuracy and ensuring even smooth edges on the emery floor, thus improving overall construction quality.

[0022] Furthermore, the hook assembly includes hooks disposed at two connection points and a connecting rod connecting the two hooks.

[0023] The hook assembly includes a hook and a connecting rod at two connection points. The hook structure facilitates quick connection of the operating rod to the main body of the long ruler or the connecting rod, making installation and disassembly convenient and saving construction preparation time. The connecting rod connects the two hooks to achieve force transmission, ensuring stable traction. The combination structure of the hook and connecting rod is simple, with low manufacturing and maintenance costs. At the same time, the connection is reliable and not easy to fall off, ensuring the stability of the traction structure during operation, reducing construction interruptions caused by connection problems, and improving the continuity and efficiency of emery floor paving.

[0024] The beneficial effects of this utility model are as follows: This structure enables single-person or multi-person collaborative operation through at least two main operating levers, adapting to different construction scenarios and improving flexibility. The two first hook components of any main operating lever form multi-point traction, distributing the force on the long ruler, preventing deformation, ensuring levelness, improving flatness, reducing height differences, making operation more stable, reducing difficulty, and improving efficiency. For long rulers of 1-3m, two main operating levers are placed at 1 / 4 of their length, applying force evenly to ensure levelness, improve accuracy in small areas, and facilitate single-person balance; for long rulers of 3-6m, four main operating levers are placed in pairs to rationally distribute pressure, ensuring consistency over large areas through multi-person collaboration, and improving efficiency through group work. Connecting rods between main operating levers in the same group and auxiliary operating levers form a stable frame, with auxiliary hooks adjusting the level and reducing errors; the hook connection angle is reasonable, with high force efficiency, saving effort and easy control. The aluminum alloy I-beam long ruler, hollow steel pipe operating levers, rubber anti-slip handles, and stainless steel wear-resistant ends combine strength, lightness, comfort, and durability. The hook-and-link structure is convenient and reliable, reducing interruptions and improving quality and efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a double-rod traction long ruler structure for large-area paving of corundum flooring according to this utility model.

[0026] The reference numerals in the attached drawings include: 1. main body of the ruler; 2. main operating lever; 3. first hook assembly; 4. connecting rod; 5. second hook assembly; 6. first connection point; 7. second connection point; 8. operating handle; 9. wear-resistant end; 11. connecting rod; 12. auxiliary operating lever. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] Please see Figure 1As shown, the present invention provides a double-bar traction long ruler structure for large-area paving of emery flooring, comprising a long ruler body 1 and at least two main operating rods 2 arranged along the length of the long ruler body 1. The at least two main operating rods 2 are used for single-person operation or multi-person collaborative operation of the long ruler body 1. Each of the main operating rods 2 is equipped with two first hook assemblies 3, and the first hook assemblies 3 form a multi-point traction structure between the main operating rod 2 and the long ruler body 1.

[0029] When this double-rod traction long ruler structure is in operation, the rigidity of the long ruler body 1 ensures the flatness benchmark of the surface to be paved with emery aggregate. At least two main operating rods 2 are distributed along the length of the long ruler body 1. When operated by a single person, the balance and direction of the long ruler body 1 can be controlled by adjusting the force angle and force of the main operating rods 2 at different positions. When operated by multiple people, each main operating rod 2 is subjected to force separately, and the long ruler body 1 is moved or positioned smoothly through cooperation. The two first hook components 3 configured on each main operating rod 2 form multi-point traction, which can distribute the operating force and avoid deformation or displacement of the long ruler body 1 caused by single-point force, while enhancing the connection stability between the operating rod and the long ruler body 1. During operation, the long ruler body 1 is in contact with the surface to be paved with emery aggregate. The long ruler is slid by the traction of the main operating rods 2, using its length to cover a large area. With the balanced force of multi-point traction, the long ruler is kept horizontal or at the preset slope, thereby scraping and smoothing the emery aggregate material and completing the paving of a large area of ​​the floor.

[0030] Specifically, when the length of the main body 1 of the long ruler is 1-3m, the number of main operating levers 2 is set to two, and the two main operating levers 2 are symmetrically arranged at a position close to the end of the main body 1 at 1 / 4 of its length.

[0031] When the main body 1 of the ruler is 1-3m long, the two main operating levers 2 are symmetrically positioned near the end at the 1 / 4 length position. This arrangement ensures a more even distribution of operating force along the ruler. During operation, a single operator can control both main operating levers 2 with both hands, adjusting the force applied on both sides to control the ruler's levelness and prevent tilting due to force differences at both ends. Multiple operators can each control one lever, utilizing synchronized force application at symmetrical positions to achieve smooth movement of the ruler. The two first hook assemblies 3 of each main operating lever 2 form a dual-point traction, distributing the force at the 1 / 4 end position and preventing deformation of the ruler due to force concentration. When the ruler is in contact with the diamond abrasive surface, its 1-3m length can cover a medium-sized work surface. The operating points at the 1 / 4 end effectively control the lifting and translating of both ends of the ruler. Combined with the stable connection of the dual-point traction, the diamond abrasive is scraped and smoothed by sliding the ruler, ensuring the flatness of the floor surface within the 1-3m range meets requirements.

[0032] Specifically, when the length of the main body 1 of the ruler is 3-6m, the number of main operating levers 2 is configured as four, and the four main operating levers 2 are arranged in pairs for multiple people to operate together.

[0033] When the main body 1 of the long ruler is 3-6m long, the four main operating levers 2 are distributed in pairs to accommodate the needs of multiple people working together. At this length, the rigid support area of ​​the long ruler increases, and the four-lever layout can evenly distribute the operating force. The two sets of main operating levers 2 correspond to different sections of the long ruler, and the two levers in each set work together to control the balance of the section. During operation, multiple people hold the four levers, and through synchronous force application within the set and coordination between sets, the long ruler is prevented from sagging in the middle or tilting at both ends due to the large span. The two first hook components 3 of each main operating lever 2 form multi-point traction, which enhances the connection strength between the 3-6m long ruler and the operating lever and prevents the long ruler from deforming under force. The long ruler is attached to a large area of ​​diamond abrasive surface, and the four levers work together to make it slide smoothly. The 3-6m length covers a wider area, and the multi-point balanced force keeps the long ruler horizontal. The diamond abrasive is spread by scraping, ensuring that the surface of the large-span floor is flat and uniform.

[0034] Specifically, a connecting rod 4 is fixed between the two main operating levers 2 in the same group. An auxiliary operating lever is provided on the connecting rod 4. The connecting rod 4 is fixed perpendicularly to the main operating lever 2 and the auxiliary operating lever respectively. The auxiliary operating lever is equipped with two second hook assemblies 5, which are used to assist in adjusting the horizontality of the connecting rod 4.

[0035] When the main body 1 of the long ruler is 3-6m in length, the four main operating rods 2 are grouped in pairs, with the two rods in the same group fixed together by connecting rods 4 to form a whole. The connecting rods 4 are perpendicular to the main operating rods 2 to enhance structural stability. During operation, each group of main operating rods 2 is controlled by a dedicated person. The rigidity of the connecting rods 4 ensures that the two rods in the group are subjected to force synchronously, preventing single rod deviation from affecting the balance of the long ruler. The auxiliary operating rod on the connecting rod 4 is set vertically, and its two second hook components 5 form auxiliary traction points. The horizontality of the connecting rod 4 can be corrected by adjusting the applied force, thereby ensuring that the height of the main operating rods 2 in the same group is consistent. When multiple people are operating, the two groups of main operating rods 2 are subjected to force separately. With the horizontal adjustment of the auxiliary operating rods, the 3-6m long ruler main body 1 is kept horizontal as a whole. The main operating rods 2 and the auxiliary operating rods with dual-point traction jointly disperse the force to prevent deformation of the long ruler. The diamond abrasive is scraped and smoothed by the overall traction sliding, ensuring the flatness of a large area of ​​the ground.

[0036] Specifically, the hook assembly has a first connection point 6 and a second connection point 7. The first connection point 6 is located in the middle of the operating rod, and the second connection point 7 is located on the corresponding long ruler body 1 and connecting rod 4. The connection direction between the second connection point 7 and the first connection point 6 forms an angle of 30°-60° with the length direction of the long ruler body 1.

[0037] When the main body 1 of the long ruler is 3-6m long, the four main operating rods 2 are arranged in pairs, with the two rods in the same pair fixed together by connecting rods 4 to form a whole. The connecting rods 4 are perpendicular to the main operating rods 2 to enhance structural stability. The first connection point 6 of the hook assembly is located in the middle of the operating rod, and the second connection point 7 is on the main body 1 of the long ruler or the connecting rod 4. The connection direction of the two is at an angle of 30°-60° with the length direction of the long ruler. This angle can decompose the traction force of the operating rod into a horizontal component along the long ruler direction and a stable component perpendicular to the long ruler. The horizontal component drives the long ruler to slide smoothly, while the stable component enhances the adhesion between the long ruler and the floor surface. During operation, each group of main operating rods 2 is controlled by a dedicated person. The connecting rods 4 ensure that the two rods in the group are subjected to force synchronously. The second hook assembly 5 of the auxiliary operating rod is designed with the same angle to further correct the levelness of the connecting rod 4. When multiple people are operating, the two groups of main operating rods 2 cooperate with the auxiliary operating rods, using the angle component of the hook assembly to distribute the load, prevent deformation of the long ruler, and achieve the smooth laying of the diamond abrasive floor within a range of 3-6m.

[0038] Specifically, the main body 1 of the long ruler is made of aluminum alloy, and the cross-section of the main body 1 of the long ruler is I-shaped.

[0039] The main body 1 of the long ruler is made of aluminum alloy with an I-shaped cross-section. Its working principle lies in the fact that the lightweight characteristics of aluminum alloy can reduce the load during operation, while its sufficient strength can resist the bending of gravity under a span of 3-6m. The I-shaped structure distributes longitudinal forces through the upper and lower flanges, enhancing bending resistance, while the web plate improves overall rigidity, ensuring that the long ruler remains straight under force, providing a stable benchmark for paving the corundum floor. When the main body 1 of the long ruler moves under the traction of the main operating lever 2, the deformation resistance of the aluminum alloy ensures that it will not bend due to operating force or corundum resistance. The I-shaped cross-section can evenly transmit and distribute the force from each hook component, avoiding excessive local stress that could lead to deformation, thus maintaining the precision of contact with the floor surface. By covering a large area with its length, it can scrape and smooth the corundum, ensuring a smoothing effect.

[0040] Specifically, the operating rod is a hollow steel tube structure with an outer diameter of 28-35mm and a length of 1.2-1.8m, and its surface is provided with anti-slip texture.

[0041] The operating lever features a hollow steel tube structure with an outer diameter of 28-35mm and a length of 1.2-1.8m. Its surface is textured with anti-slip patterns, balancing strength and weight during operation. The hollow design reduces overall weight, facilitating prolonged operation by one or more people. The 28-35mm outer diameter provides sufficient grip space and structural rigidity, preventing deformation under stress. The 1.2-1.8m length is adapted to human operating height, making force application easier and more precise. The anti-slip surface increases friction between the palm and the lever, preventing slippage and ensuring stable force transmission to the hook assembly. During operation, the hollow structure of the operating lever disperses the reaction force from the hook assembly, combined with the rigid support of the outer diameter, efficiently converting human power into the power to pull the main body of the long ruler 1. Simultaneously, the anti-slip patterns ensure precise force control during operation, allowing the main body of the long ruler 1 to move smoothly along the preset trajectory, ultimately improving the stability and efficiency of the emery floor paving operation.

[0042] Specifically, the end of the auxiliary operating lever away from the connecting rod 4 is provided with an operating handle 8, which is made of rubber and has a raised anti-slip structure on its surface.

[0043] The auxiliary operating lever, located away from the connecting rod 4, features a rubber operating handle 8. Its raised, anti-slip surface increases friction between the hand and the handle, preventing slippage and loss of control during operation. The elasticity of the rubber cushions the reaction force, reducing hand fatigue, improving grip comfort, and facilitating stable force application over extended periods. During operation, the operator controls the auxiliary operating lever by gripping the handle 8. The raised structure ensures the hand doesn't slip during force application, and the rubber's deformation properties adapt to varying grip strengths, resulting in smoother force transmission. The auxiliary operating lever receives manual force via the handle 8, which is then transmitted to the second hook assembly 5, adjusting the level of the connecting rod 4. The anti-slip and cushioning properties of the rubber handle 8 ensure precise application of the auxiliary adjustment force. Combined with the main operating lever 2, this enhances the balance control accuracy of the long ruler body 1, ultimately ensuring the stability of the emery floor paving operation.

[0044] Specifically, the two ends of the long ruler body 1 are provided with wear-resistant ends 9, which are made of stainless steel and are fixedly connected to the ends of the long ruler body 1 by bolts.

[0045] The stainless steel wear-resistant ends 9 at both ends of the main body 1 of the long ruler are fixed with bolts. During operation, they can withstand direct friction with the ground or corundum material, preventing deformation of the aluminum alloy main body 1 ends due to frequent contact wear and ensuring the overall length accuracy of the long ruler. The stainless steel material has high hardness and strong wear resistance, which can withstand repeated impacts or scratches at the ends during paving operations, extending the service life of the long ruler. The bolt connection method facilitates the replacement of the ends after wear, maintaining the structural integrity of the ends of the long ruler. During operation, as the main body 1 of the long ruler moves, the wear-resistant ends 9 at both ends first contact the surface to be treated. The rigidity of the stainless steel maintains a consistent end height. Combined with the flatness benchmark of the main body 1 of the long ruler, this ensures uniform flatness of the edges and center of the corundum flooring throughout the entire length range, while preventing end wear from affecting the levelness control of the long ruler and improving the stability of large-area paving operations.

[0046] Specifically, the hook assembly includes hooks disposed at two connection points and a connecting rod 11 connecting the two hooks.

[0047] The hook assembly connects the operating rod to the main body 1 of the long ruler (or connecting rod 4) via hooks at two connection points. The connecting rod 11 in the middle transmits the force, ensuring stable transmission of the force applied by the operating rod to the long ruler during operation. The combination of hooks and connecting rod 11 allows the connection points to rotate flexibly, adapting to changes in the angle between the operating rod and the main body 1 of the long ruler during operation, avoiding force transmission jamming caused by rigid connections. During operation, after the operating rod is subjected to force, the force is transmitted to the connecting rod 11 via the hook at the first connection point 6, and then acts on the long ruler via the hook at the second connection point 7. The double hooks, together with the connecting rod 11, form a force transmission path, simultaneously distributing the force at a single point. When the operating rod adjusts its angle, the hooks can rotate around the connection points, and the connecting rod 11 changes its tilt angle accordingly, ensuring that the force is always transmitted along the axis of the connecting rod 11, maintaining traction stability, and thus ensuring that the main body 1 of the long ruler maintains a flat baseline even when subjected to changes in force, improving the leveling accuracy of the emery flooring.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A double-bar traction long ruler structure for large-area paving of corundum flooring, characterized in that: It includes a long ruler body (1) and at least two main operating levers (2) arranged along the length of the long ruler body (1). The at least two main operating levers (2) are used for single-person operation or multi-person collaborative operation of the long ruler body (1). Each of the main operating levers (2) is equipped with two first hook assemblies (3), and the first hook assemblies (3) form a multi-point traction structure between the main operating lever (2) and the long ruler body (1).

2. The double-bar traction long ruler structure for large-area paving of corundum flooring according to claim 1, characterized in that: When the length of the main body (1) of the long ruler is 1-3m, the number of main operating rods (2) is set to two, and the two main operating rods (2) are symmetrically arranged at the 1 / 4 length position near the end of the main body (1).

3. The double-bar traction long ruler structure for large-area paving of corundum flooring according to claim 1, characterized in that: When the length of the main body (1) of the ruler is 3-6m, the number of main operating levers (2) is configured to be four, and the four main operating levers (2) are arranged in pairs for multiple people to operate together.

4. A double-bar traction long ruler structure for large-area paving of corundum flooring according to claim 2 or 3, characterized in that: A connecting rod (4) is fixed between the two main operating rods (2) in the same group. An auxiliary operating rod is provided on the connecting rod (4). The connecting rod (4) is fixed perpendicularly to the main operating rod (2) and the auxiliary operating rod respectively. The auxiliary operating rod is equipped with two second hook assemblies (5). The second hook assemblies (5) are used to assist in adjusting the horizontality of the connecting rod (4).

5. The double-bar traction long ruler structure for large-area paving of corundum flooring according to claim 4, characterized in that: The hook assembly has a first connection point (6) and a second connection point (7). The first connection point (6) is located in the middle of the operating rod, and the second connection point (7) is located on the corresponding long ruler body (1) and connecting rod (4). The connection direction between the second connection point (7) and the first connection point (6) forms an angle of 30°-60° with the length direction of the long ruler body (1).

6. The double-bar traction long ruler structure for large-area paving of corundum flooring according to claim 1, characterized in that: The main body (1) of the ruler is made of aluminum alloy and the cross-section of the main body (1) is I-shaped.

7. The double-bar traction long ruler structure for large-area paving of emery flooring according to claim 4, characterized in that: The operating rod is a hollow steel tube structure with an outer diameter of 28-35mm and a length of 1.2-1.8m. Its surface is provided with anti-slip texture.

8. The double-bar traction long ruler structure for large-area paving of corundum flooring according to claim 4, characterized in that: The auxiliary operating lever is provided with an operating handle (8) at the end away from the connecting rod (4). The operating handle (8) is made of rubber and has a raised anti-slip structure on its surface.

9. The double-bar traction long ruler structure for large-area paving of corundum flooring according to claim 1, characterized in that: The long ruler body (1) has wear-resistant ends (9) at both ends. The wear-resistant ends (9) are made of stainless steel and are fixedly connected to the ends of the long ruler body (1) by bolts.

10. A double-bar traction long ruler structure for large-area paving of corundum flooring according to claim 5, characterized in that: The hook assembly includes hooks at two connection points and a connecting rod (11) connecting the two hooks.

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