Multifunctional combined tool for on-site steam pressurization building block construction

Abstract

The multifunctional combined tool comprises a middle main body and at least four replaceable functional modules, standardized connecting structures are arranged at the two ends of the middle main body, and the replaceable functional modules are detachably and fixedly connected with the middle main body through the standardized connecting structures; the replaceable function module comprises a wrench module, a groove broaching module, a hammer module and a saw blade module, the wrench module is used for independently completing nut dismounting and mounting of a steel pipe fastener type scaffold, the groove broaching module is used for groove broaching operation of a steam pressurization building block, and the hammer module is used for nail knocking operation; and the saw blade module is used for template cutting and blocking operation. After the tool is adopted, multiple on-site construction procedures can be met only by wearing a set of tools, and the tools can be uniformly placed and carried in a toolkit form, so that forgetting is avoided, a working window of a scaffolding worker is saved, and the labor intensity of the scaffolding worker is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction tools, in particular to a multifunctional combined tool for on-site steam pressurized block construction, which is suitable for multiple processes such as slotting, scaffold dismantling, nailing, formwork cutting, etc. in the on-site masonry structure construction of building engineering. BACKGROUND

[0002] After the completion of the main structure construction on site, the internal masonry partition construction is generally carried out. During the construction of the internal partition wall, there are often many steel pipe scaffolds remaining in the main structure, and some of the fastener type scaffolds that may hinder the masonry construction often need to be moved or dismantled by the scaffold team, which may affect the overall construction progress.

[0003] At present, the construction material commonly used is steam pressurized block. During the construction process, according to the requirements of on-site construction and design, tools are used to process slotting on the upper surface of the masonry in order to place the through tie bars in the interior later.

[0004] The development direction of current tools is towards multifunctional and fine, and the known masonry tools mainly combine the aspects of block slotting and finishing, without replaceability to meet the construction needs under different conditions, and without targeted solutions for the dismantling of the frame that affects the masonry.

[0005] There are many technical problems in the prior art: Single function, inconvenient to carry: the existing slotting tool (such as the tool for steam pressurized aerated concrete block slotting disclosed in patent CN220113699U) can only realize the function of slotting, and the structure is formed by fixed welding of a handle and a blade, which cannot adapt to other construction needs; scaffold dismantling requires a special wrench, nailing requires a hammer, and formwork cutting requires a saw blade, so the construction personnel need to carry multiple sets of tools, which not only increases the carrying burden, but also easily leads to the problem of construction interruption due to forgotten tools. The blade is formed by fixed welding of two half circular saw discs, and the number, distribution and simultaneous working teeth of the saw teeth are not optimized, resulting in large fluctuation of the slotting force during slotting, damage to the working balance of the slotting cutter, difficulty in guaranteeing the slotting size precision and surface flatness, and affecting the quality of the subsequent tie bar placement and plastering process.

[0006] Limited application scenarios, poor connection reliability: some cutting devices (such as the cutting device for steam pressurized aerated concrete block production disclosed in patent CN221496638U) are large-scale equipment on the production line, which are bulky and complex in structure, and cannot meet the needs of on-site mobile construction; and the existing manual tools are mostly integrated structures, the functional modules of which are not replaceable, and the whole tool needs to be replaced after damage, which is high in use cost, and the fixed welding connection of some tools makes it difficult to repair and replace.

[0007] Therefore, there is an urgent need for a combined tool that integrates multiple functions, is portable and reliable, and can meet the needs of multiple construction processes on site to solve the above problems of the prior art. SUMMARY

[0008] The present application aims to solve the technical problems of single function, inconvenience of carrying, low construction collaboration efficiency, poor slotting quality, insufficient connection reliability and poor safety of construction tools for steam pressurized block construction on site in the prior art.

[0009] To achieve the above-mentioned purpose, the technical solution of the present application is: a multifunctional combined tool for on-site steam pressurized block construction, comprising a middle body, at least four replaceable functional modules, both ends of the middle body are provided with standardized connection structures, and the replaceable functional modules are detachably fixedly connected with the middle body through the standardized connection structures; the replaceable functional modules include a wrench module, a slotting module, a hammer module and a saw blade module, the wrench module is used for independently completing the nut disassembly and installation of the steel pipe fastener type scaffold, the slotting module is used for slotting operation of the steam pressurized block, the hammer module is used for knocking nail operation, and the saw blade module is used for template cutting and blocking operation.

[0010] Further, the standardized connection structure is an M16 threaded connection structure, the connecting end of the replaceable functional module is provided with an internal thread hole matched with the M16 thread, and the engagement depth of the threaded connection is 3cm, so as to ensure that the connection strength meets the construction stress requirement.

[0011] Further, the front end of the wrench module is provided with a nut engagement notch, the size of the notch is matched with the nut of a φ48mm specification steel pipe fastener, the middle part of the wrench module is provided with an internal hex gripping structure, and the inscribed circle radius of the internal hex gripping structure is R28-30mm, so as to facilitate force twisting.

[0012] Further, the working end of the slotting module is provided with a sawtooth cutting structure, the design of the sawtooth cutting structure ensures that the minimum number of simultaneous working teeth is 3 and the maximum number of simultaneous working teeth is 4 during the broaching process, the sawteeth are evenly distributed along the circumferential three equal parts of the end part of the slotting module, the effective cutting length of the slotting module is 50mm, the sawtooth height is 16mm, the tooth tip angle is 25o, and the sawtooth cutting edge angle is 45°.

[0013] Further, the middle body is provided with a simple scale along the length direction, and the precision of the simple scale is 1cm.

[0014] Further, the hammer module comprises a hammering part and a connecting part which are integrally formed, the hammering part is a solid cylindrical structure, the outer surface of the connecting part is provided with threads matched with the standardized connecting structure, and the end surface of the hammering part is subjected to quenching heat treatment with a hardness of HRC 52-55.

[0015] Further, the saw blade module comprises a saw blade and a mounting seat, the saw blade is made of high-speed steel material, has a length of 150-200mm and a saw tooth density of 3-4 teeth / cm, the mounting seat is fixed with the saw blade through welding, and the tail part of the mounting seat is provided with a connecting end matched with the standardized connecting structure.

[0016] Further, the middle body is forged from alloy steel material, and the holding area of the middle body is provided with diamond-shaped anti-skid lines to improve holding stability.

[0017] Further, after the replaceable functional module is connected with the middle body, the coaxial error between the central axis of the functional module and the central axis of the middle body is not more than 0.5mm, and the thread precision of the connecting structure is 7H grade, so that force balance is ensured during force application and bias load damage is avoided.

[0018] Further, the two ends of the middle body are provided with anti-dropping limit rings which are integrally formed with the middle body and used for limiting the connecting stroke of the replaceable functional module to avoid difficulty in disassembly caused by excessive engagement of threads.

[0019] Compared with the prior art, the present application has the following beneficial effects: 1. Multi-functional integration improves construction efficiency: The present application integrates four core functions of slotting, scaffold dismantling and installation, nailing and formwork cutting, so that construction personnel only need to carry one set of tools to meet the requirements of multiple processes, avoiding the problems of carrying and forgetting multiple tools, and the masonry workers can independently complete the scaffold dismantling work that hinders construction without waiting for the cooperation of the scaffold workers, realizing "specialized and clear", improving the construction cooperation efficiency, reducing the labor burden of the scaffold workers, and fully exerting the subjective initiative of the masonry workers.

[0020] 2. Replaceable module design reduces use cost: The M16 standardized thread connecting structure is adopted, the functional module can be quickly disassembled and replaced, and after damage of a single functional module, the tool does not need to be replaced as a whole, but only the corresponding module needs to be replaced, the connection engagement depth reaches 3cm, and the 7H grade thread precision ensures the connection reliability and force stability, significantly reducing the tool use and maintenance cost.

[0021] 3. Optimizing the structure of the broaching groove, improving the construction quality: the sawtooth design of the broaching groove module is optimized, and the number of working teeth is controlled at 3-4, the sawtooth is evenly distributed in three equal parts, and the cutting edge angle is 45°, effectively solving the problem of large broaching force fluctuation and poor balance of the existing broaching tool, significantly improving the broaching size precision and surface flatness, ensuring the construction quality of the subsequent tie bar placement and plastering process, and the hard alloy sawtooth has strong wear resistance, prolonging the service life of the tool.

[0022] 4. Both portability and safety: the middle body is made of alloy steel and is forged, which has high strength and moderate weight, facilitating on-site carrying and operation; the diamond-shaped anti-slip pattern on the gripping area increases the friction between the hand and the tool, allowing stable gripping even if the hand is covered with mortar, avoiding slipping and injuring the hand, and the anti-falling limiting ring design further improves the connection safety and prevents the functional module from accidentally falling off during construction.

[0023] 5. Strong practicality, adapting to on-site needs: the wrench module precisely fits the φ48mm steel pipe fastener nut, eliminating the need for additional adapter tools; the laser etched scale on the middle body can meet the needs of on-site rapid reading and resource allocation; the hammer module's quenched heat-treated hammering part and the saw blade module's high-precision pitch design ensure the knocking force and smooth cutting, respectively, fully adapting to the diversification of on-site construction needs.

[0024] In summary, the multifunctional tool of the present application allows masonry construction personnel to wear only one set of tools after using the tool, which can be placed and carried in the form of a tool bag to avoid forgetting. It can also save the work window of the scaffolding worker and reduce their labor intensity to complete more important work content. The scaffolding work that conflicts with masonry is divided among masonry workers, ensuring that they are dedicated to cleaning, which can further enhance the subjective initiative of masonry workers. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the tool middle body structure of the present application; Figure 2 is an enlarged view of the wrench module structure of the present application; Figure 3 is an enlarged view of the broaching groove module structure of the present application; Figure 4 is an enlarged view of the hammer module structure of the present application; Figure 5 is an enlarged view of the saw blade module structure of the present application; Figure 6 is a schematic diagram of the tool middle body installing the wrench module of the present application; Figure identification: 1 - middle body, 2 - simple scale, 3 - M16 threaded connection structure, 4 - wrench module, 5 - nut meshing notch, 6 - internal hexagonal holding structure, 7 - slot pulling module, 8 - sawtooth cutting structure, 9 - hammer module, 10 - saw blade module. DETAILED DESCRIPTION

[0026] The application will be further described in detail below in combination with the drawings and examples.

[0027] As Figures 1 to 6 shown, the embodiment of the application provides a multifunctional combined tool for on-site steam pressurized block construction, which comprises a middle body 1, a wrench module 4, a slot pulling module 7, a hammer module 9, and a saw blade module 10. The wrench module 4 is used to independently complete the nut disassembly and installation of the steel pipe fastener type scaffold, the slot pulling module 7 is used for slot pulling operation of the steam pressurized block, the hammer module 9 is used for nail knocking operation, and the saw blade module 10 is used for template cutting and blocking operation.

[0028] As Figure 1 shown, the middle body 1 is provided with a simple scale 2 along the length direction, which can be read by the on-site construction personnel. The middle body 1 is provided with M16 threaded connection structures 3 at both ends; the replaceable wrench module 4, slot pulling module 7, hammer module 9, and saw blade module 10 are detachably fixedly connected with the middle body 1 through the M16 threaded connection structures 3. The engagement depth of the threaded connection of the M16 threaded connection structure 3 is 3 cm, which ensures that the connection strength meets the construction stress requirement. The middle body 1 is forged from alloy steel material, the length of the middle body is 100-150 mm, the diameter of the middle body is 40 mm, and the holding area of the middle body is provided with diamond-shaped anti-slip lines to improve the holding stability. The both ends of the middle body are provided with anti-dropping limit rings, which are integrally formed with the middle body, used to limit the connection stroke of the replaceable functional module, and avoid the difficulty in disassembly caused by excessive engagement of the threads.

[0029] As Figure 2 shown, the front end of the replaceable wrench module 4 is provided with a nut engagement notch 5, the size of the notch is adapted to the nut of φ48 mm specification steel pipe fastener, and the middle part of the wrench module 4 is provided with an internal hexagonal holding structure 6, the inscribed circle radius of the internal hexagonal holding structure 6 is R28-30 mm, which is convenient for force twisting.

[0030] The replaceable wrench module 4 can twist the nut of about φ48 mm according to the existing fastener screw size, which ensures that the nut of different diameters can be matched to complete the related disassembly and installation work.

[0031] As Figure 3As shown, the working end of the replaceable broaching module 7 is provided with a sawtooth cutting structure 8 for on-site construction of the steam pressure block, and the design of the sawtooth cutting structure 8 ensures that the minimum number of simultaneously working teeth is 3 and the maximum number of simultaneously working teeth is 4 during the broaching process, the sawtooth is evenly distributed along the circumferential three-equal division of the end of the broaching module, the effective cutting length of the broaching module is 50mm, the sawtooth height is 16mm, the tooth tip angle is 25 o , the sawtooth cutting edge angle is 45°, and the sawtooth is made of hard alloy.

[0032] The design of the number of sawteeth mainly considers that according to related technologies, when the conditions allow, the number of simultaneously working teeth of the broach is 4-5, and the broaching effect is relatively ideal; when the workpiece is short, the number of simultaneously working teeth is ensured to be 3, and satisfactory results can also be obtained. Because the number of simultaneously working teeth of the broach changes during the broaching process, the minimum number of simultaneously working teeth is less than the maximum number of simultaneously working teeth by one tooth, and the change of the number of simultaneously working teeth causes the broaching force to also change, which destroys the balance of the broach work. Therefore, when determining the tooth pitch, the number of simultaneously working teeth should not change during most of the broaching process, so as to better ensure the broaching quality. Finally, 3-4 working teeth are selected for construction.

[0033] As shown in Figure 4 , the replaceable hammer module 9 is used for knocking nails, which includes an integrated hammering part and a connecting part, the hammering part is a solid cylindrical structure, the outer surface of the connecting part is provided with a thread matched with the M16 threaded connection structure, and the end face of the hammering part is subjected to quenching heat treatment, and the hardness reaches HRC52-55.

[0034] As shown in Figure 5 , the replaceable saw blade module 10 is used for template cutting and blocking, which includes a saw blade and a mounting seat, the saw blade is made of high-speed steel, the length is 150-200mm, the sawtooth density is 3-4 teeth / cm, the mounting seat and the saw blade are fixed by welding, and the tail of the mounting seat is provided with a connecting end matched with the M16 threaded connection structure.

[0035] The use method of the present application: (1) Steam pressure block slotting operation: The relevant personnel carry the tool into the construction site, select the slotting module 9, fix it through the M16 threaded connection structure 3 and the middle body 1, ensure that the thread is engaged to the anti-dropping limiting ring 4. Mark the position where the block needs to be slotted, the construction personnel hold the middle body 1, the serrated cutting structure 10 of the slotting module 9 is at an angle of 45° with the surface of the block, apply a pushing force to scratch, use 3-4 serrations to work at the same time to draw cut, and a groove that meets the placement requirements of the tie bar can be formed, which facilitates the subsequent construction of embedded steel bars, plastering and other subsequent processes. The simple scale 2 of the middle body 1 can be used to check the length of the groove.

[0036] 2. Scaffolding disassembly or installation operation: Replace the wrench module 6, engage the nut engagement notch 7 of the module with the φ48mm steel pipe fastener nut that interferes with the construction, hold the middle body 1 or the internal hexagonal holding structure 8, and twist counterclockwise to complete the nut disassembly, and twist clockwise to complete the installation, without relying on the scaffold worker, the scaffolding can be independently moved or disassembled. When disassembling (restoring) the scaffolding, engage the front notch of the wrench module with the nut on the fastener, and the user holds the middle body and twists counterclockwise (clockwise) to easily and independently complete the disassembly (installation) of the fastener.

[0037] 3. Knocking operation: Replace the hammer module 11, hold the middle body 1, align the hammering part 12 of the quenched heat treatment with the nail head, and apply impact force to complete the knocking operation. The solid cylindrical structure ensures uniform transmission of the knocking force.

[0038] 4. Template cutting and blocking operation: Install the saw blade module 13, hold the middle body 1, align the saw blade 14 with the template cutting position, and pull the tool back and forth. The uniform tooth pitch design of the high-speed steel saw blade ensures smooth cutting and avoids jamming.

[0039] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for part of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-functional modular tool for use in the field for steam pressurized block construction, characterized in that, The utility model provides a multifunctional tool, including middle body, at least four replaceable function module, both ends of middle body are equipped with standardization connection structure, replaceable function module passes through standardization connection structure with middle body detachable fixed connection, replaceable function module includes spanner module, draw slot module, hammer module, saw blade module, spanner module is used for independent completion steel pipe fastener formula scaffold's nut dismounting and installation, draw slot module is used for steam pressurization block's draw slot operation, hammer module is used for knock peg operation, saw blade module is used for template cutting block operation.

2. The multi-functional combination tool for on-site steam pressurized block construction according to claim 1, characterized in that, The standardization connection structure is M16 threaded connection structure, the connecting end of the replaceable function module is provided with an internal thread hole matched with the M16 thread, and the engagement depth of the threaded connection is 3 cm, ensuring that the connection strength meets the construction stress requirement.

3. The multi-functional combination tool for on-site steam pressurized block construction according to claim 1, wherein, The front end of the spanner module is provided with a nut engagement notch, the size of the notch is matched with the nut of a φ48mm specification steel pipe fastener, the middle part of the spanner module is provided with an internal hex gripping structure, and the inscribed circle radius of the internal hex gripping structure is R28-30mm, facilitating force twisting.

4. The multi-functional combination tool for on-site steam pressurized block construction according to claim 1, wherein, The working end of the broaching module is provided with a sawtooth cutting structure, the design of the sawtooth cutting structure ensures that the minimum number of simultaneous working teeth is 3 and the maximum number of simultaneous working teeth is 4 during the broaching process, the sawtooth is uniformly distributed along the circumferential three equal parts of the end of the broaching module, the effective cutting length of the broaching module is 50mm, the sawtooth height is 16mm, the tooth top angle is 25 o , and the sawtooth cutting edge angle is 45°.

5. The multi-functional combination tool for on-site steam pressurized block construction according to claim 1, characterized in that, The middle body is provided with a simple scale along the length direction, and the simple scale has an accuracy of 1cm.

6. The multi-functional combination tool for on-site steam pressurized block construction according to claim 1, wherein, The hammer module comprises an integrally formed hammering part and a connecting part, the hammering part is a solid cylindrical structure, the outer surface of the connecting part is provided with threads matched with the standardization connection structure, and the end surface of the hammering part is subjected to quenching heat treatment, with a hardness of HRC52-55.

7. The multi-functional combination tool for on-site steam pressurized block construction according to claim 1, characterized in that, The saw blade module comprises a saw blade and a mounting seat, the saw blade is made of high-speed steel, has a length of 150-200mm, and has a sawtooth density of 3-4 teeth / cm, the mounting seat and the saw blade are fixed by welding, and the tail part of the mounting seat is provided with a connecting end matched with the standardization connection structure.

8. The multi-functional combination tool for on-site steam pressurized block construction according to claim 1, characterized in that, The middle body is made of alloy steel and is forged, the gripping area of the middle body is provided with diamond-shaped anti-skid lines to improve the gripping stability.

9. The multi-functional combination tool for on-site steam pressurized block construction according to claim 1, characterized in that, After the replaceable function module is connected with the middle body, the coaxiality error between the central axis of the function module and the central axis of the middle body is not more than 0.5mm, the thread accuracy of the connection structure is 7H level, ensuring that the force is balanced during the force application process and avoiding damage caused by partial load.

10. The multi-functional combination tool for on-site steam pressurized block construction according to claim 1, characterized in that, Both ends of the middle body are provided with anti-dropping limit rings, the anti-dropping limit rings are integrally formed with the middle body and are used for limiting the connection stroke of the replaceable function module, avoiding the difficulty in dismounting caused by excessive engagement of threads.

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