Device for removing concrete bonded on opposite-pull screw

Abstract

The invention relates to the technical field of opposite-pull screw cleaning, in particular to a device for removing concrete bonded on an opposite-pull screw. Comprising an operation frame, an operation table is arranged on the operation frame, a discharging port is formed in the middle of the operation table, a motor is arranged on the operation table and located on one side of the discharging port, and a locking mechanism used for fixing a split screw is connected to the output end of the motor; a limiting mechanism is arranged between the fixing frame and the motor and located on the periphery of the locking mechanism, and a bolt sleeve used in cooperation with the opposite-pull screw is slidably connected into the limiting mechanism in the axial direction of the opposite-pull screw. The locking mechanism is driven by the motor to fix the screw rod and drive the screw rod to rotate, and the concrete is mechanically stripped in cooperation with the axially sliding bolt sleeve, so that the problems of low efficiency and operation risk existing in a traditional cleaning process are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning a tensioning screw rod, in particular to a device for removing concrete adhered to a tensioning screw rod. Background Art

[0002] In contemporary construction, the demand for refined concrete structure construction quality continues to rise. Formwork, a key process in concrete forming, is subject to increasingly stringent construction standards. As a core component of the formwork reinforcement system, tie rods play a crucial role in balancing concrete lateral pressure and controlling formwork spacing during wall and column formwork construction. Their use has increased significantly with increasing structural complexity. Statistics show that modern high-rise buildings can use hundreds of tie rods per floor, making post-construction cleaning a critical factor affecting project efficiency.

[0003] In the currently widely used sleeve-type tie-screw reinforcement system, problems such as sleeve damage and concrete leakage during construction often lead to adhesion between the screw threads and the concrete. This adhesion creates a dual dilemma during the formwork removal phase: on the one hand, the encapsulation layer formed after the initial setting of the concrete hinders the proper unscrewing of the screw; on the other hand, the residual hardened concrete affects the screw's reusability. Traditional cleaning methods rely primarily on manual scraping or chemical solvent treatment, which present efficiency bottlenecks and operational risks. Water flushing consumes large amounts of water and is limited by site drainage conditions; manual scraping can easily damage the screw threads; and acidic solvent treatment involves the safe management of corrosive substances. Actual project cases show that during standard floor construction, traditional methods take an average of 15-20 minutes to clean a single screw, accounting for over 30% of the total formwork removal time, becoming a key factor restricting the construction process flow. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned problem, thereby providing a device for removing concrete adhered to a tensioning screw rod which can accelerate the cleaning efficiency.

[0005] The present invention solves the above problems by adopting the following technical solutions: A device for removing concrete adhered to a tension screw, comprising an operating frame, an operating table provided on the operating frame, a blanking port provided in the middle of the operating table, a motor provided on the operating table and located on one side of the blanking port, a locking mechanism for fixing the tension screw connected to the output end of the motor, a fixing frame provided on the operating table and located on the other side of the blanking port, a limiting mechanism provided between the fixing frame and the motor and located on the outer periphery of the locking mechanism, a bolt sleeve used in conjunction with the tension screw being connected in a sliding manner along the axial direction of the tension screw in the limiting mechanism.

[0006] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: A motor-driven locking mechanism secures the screw and rotates it, while an axially sliding bolt sleeve mechanically strips the concrete, effectively resolving the inefficiencies and operational risks inherent in traditional cleaning processes. Compared to traditional methods that rely on manual scraping or chemical solvent treatment, this device utilizes a mechanized cleaning method, avoiding the risk of physical damage to the screw threads caused by manual operation while also eliminating the corrosive and environmental pollution risks associated with acidic solvents. The integrated operating frame and limiting mechanism design enables rapid positioning and continuous cleaning of the tensioning screw, significantly reducing the time cost of single-screw processing and overcoming the efficiency bottleneck of traditional processes in intensive operations. The synergistic effect of the dropper and limiting mechanism ensures the centralized collection of concrete debris, resolving the on-site pollution and water waste caused by water flushing. While maintaining the structural integrity of the screw, this device provides an efficient and environmentally friendly solution for the cleaning of turnover materials in construction formwork projects.

[0007] Preferably, a further technical solution of the present invention is: Furthermore, a lower platform is provided on the operating frame and below the operating table, and a collection box is provided on the lower platform opposite to the drop-out port. The collection box is provided on the lower platform below the operating table, forming a collection system vertically corresponding to the drop-out port, which can receive the stripped concrete debris and keep the working surface clean.

[0008] Furthermore, a handle is provided on the outside of the collection box, slide grooves are provided on both sides of the bottom of the collection box, and a slide bar adapted to the slide groove is provided on the lower platform. The slide groove and slide bar structure facilitates the pulling out and cleaning of the collection box, thereby reducing downtime.

[0009] Furthermore, the locking mechanism includes a positioning cylinder fixed on the output end of the motor, and a number of locking screw holes are provided on the side wall of the positioning cylinder at equal intervals along the circumferential direction. The axis of the locking screw hole is perpendicular to the axis of the positioning cylinder. A locking bolt is threaded into the locking screw hole, and the inner end of the locking bolt is abutted against the tension screw to form a multi-point clamping structure to ensure adaptability to screws of different diameters. The locking screw holes evenly distributed along the circumference form uniform force, which reduces the risk of eccentric vibration of the screw under high-speed rotation conditions and helps to protect the integrity of the thread structure.

[0010] Furthermore, the outer end of the locking bolt is T-shaped, and the T-shaped bolt head can be used to quickly tighten the bolt by hand, adapting to the fixing requirements of screws of different diameters and avoiding the adaptation limitations of special clamps.

[0011] Furthermore, the fixing frame includes a central annular frame and supporting legs fixed to the operating table on both sides.

[0012] Furthermore, the limiting mechanism includes limiting arc plates arranged at circumferential intervals between several annular frames and the motor, a limiting strip is arranged on the inner side of the limiting arc plate along the axial direction of the tension screw, and a limiting groove is arranged on the outer side of the bolt sleeve which is slidably connected to the limiting strip. The axial limiting strip on the inner side of the limiting arc plate and the sleeve groove constitute a precision guide system to ensure the trajectory stability of the bolt sleeve during axial movement and prevent radial deviation during the concrete stripping process.

[0013] Furthermore, the bolt sleeve is slidably connected to the inner cavity of the annular frame, a limit hole is opened on the top of the annular frame, a pin rod is passed through the limit hole, and the pin rod on the top of the annular frame adopts a pluggable design, which not only limits the working stroke of the sleeve but also retains the possibility of quick disassembly, allowing the operator to install the screw from the side of the annular frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an embodiment of the present invention; Marked in the figure are: operating frame 1, operating table 2, blanking port 3, motor 4, fixing frame 5, bolt sleeve 6, lower platform 7, collecting box 8, positioning cylinder 9, locking bolt 10, limiting arc plate 11, and pin rod 12. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0016] A device for removing adhered concrete on a tension screw comprises an operating frame 1, an operating platform 2 is provided on the operating frame 1, a material dropout port 3 is provided in the middle of the operating platform 2, a motor 4 is provided on the operating platform 2 and located on one side of the material dropout port 3, a locking mechanism for fixing the tension screw is connected to the output end of the motor 4, a fixing frame 5 is provided on the operating platform 2 and located on the other side of the material dropout port 3, a limiting mechanism is provided between the fixing frame 5 and the motor 4 and located on the outer periphery of the locking mechanism, a bolt sleeve 6 for use with the tension screw is connected to the limiting mechanism and is slidably connected along the axial direction of the tension screw.

[0017] Furthermore, a lower platform 7 is provided on the operating frame 1 and below the operating table 2. A collection box 8 is provided on the lower platform 7 opposite to the drop port 3. The collection box 8 is provided on the lower platform 7 below the operating table 2, forming a collection system vertically corresponding to the drop port 3, which can receive the peeled concrete debris and keep the working surface clean.

[0018] Furthermore, a handle is provided on the outside of the collection box 8, slide grooves are provided on both sides of the bottom of the collection box 8, and a slide bar adapted to the slide groove is provided on the lower platform 7. The slide groove and slide bar structure facilitates the pulling out and cleaning of the collection box 8, thereby reducing downtime.

[0019] Furthermore, the locking mechanism includes a positioning cylinder 9 fixed on the output end of the motor 4, and a number of locking screw holes are provided on the side wall of the positioning cylinder 9 at equal intervals along the circumferential direction. The axis of the locking screw hole is perpendicular to the axis of the positioning cylinder 9. A locking bolt 10 is threaded into the locking screw hole, and the inner end of the locking bolt 10 is against the tension screw to form a multi-point clamping structure to ensure adaptability to screws of different diameters. The locking screw holes equidistantly distributed along the circumference form uniform force, which reduces the risk of eccentric vibration of the screw under high-speed rotation conditions and helps to protect the integrity of the threaded structure.

[0020] Furthermore, the outer end of the locking bolt 10 is T-shaped, and there are four locking bolts 10 in total. The T-shaped bolt head can be used to quickly lock the bolts by hand, which can adapt to the fixing requirements of tension screws of different diameters and avoid the adaptation limitations of special clamps.

[0021] Furthermore, the fixing frame 5 includes a central annular frame and supporting legs fixed to the operating table 2 on both sides.

[0022] Furthermore, the limiting mechanism includes a limiting arc plate 11 arranged at annular intervals between several annular frames and the motor 4. The locking bolt 10 does not interfere with the limiting arc plate 11. The length of the limiting arc plate 11 is adapted to the tension screw. A limiting strip is provided on the inner side of the limiting arc plate 11 along the axial direction of the tension screw. A limiting groove is provided on the outer side of the bolt sleeve 6 in sliding connection with the limiting strip. The axial limiting strip on the inner side of the limiting arc plate 11 and the sleeve groove constitute a precision guide system to ensure the trajectory stability of the bolt sleeve 6 during axial movement and prevent radial displacement during concrete stripping.

[0023] Furthermore, the bolt sleeve 6 is slidably connected to the inner cavity of the annular frame, and a limiting hole is opened at the top of the annular frame, and a pin rod 12 is passed through the limiting hole. The pin rod 12 at the top of the annular frame adopts a pluggable design, which not only limits the working stroke of the sleeve but also retains the possibility of quick disassembly, allowing the operator to install the tension screw from the side of the annular frame.

[0024] The operator first installs the tension screw for bonding the concrete from the side of the annular frame, then inserts the tension screw into the positioning cylinder 9 and uses T-shaped locking bolts 10 to perform multi-point radial fixation to ensure that screws of different diameters can obtain uniform clamping force, and then installs the bolt sleeve 6 and the pin rod 12, and the bolt sleeve 6 is sleeved on the tension screw; when the starting motor 4 drives the screw to rotate at high speed, the screw drives the bolt sleeve 6 to move along the limiting arc plate 11, and uses mechanical shear force to peel off the bonded concrete. The removed debris falls into the slide rail collection box 8 below through the drop port 3. The whole process does not require chemical solvents or manual scraping, while avoiding thread damage and water waste, and realizing efficient and environmentally friendly turnover material cleaning.

[0025] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made using the contents of the present invention specification and its drawings are included in the scope of the present invention.

Claims

1. A device for removing concrete stuck on a tension screw, characterized by: It includes an operating frame, an operating table is provided on the operating frame, a blanking port is provided in the middle of the operating table, a motor is provided on the operating table and located on one side of the blanking port, a locking mechanism for fixing the tension screw is connected to the output end of the motor, a fixing frame is provided on the operating table and located on the other side of the blanking port, a limiting mechanism is provided between the fixing frame and the motor and located on the outer periphery of the locking mechanism, and a bolt sleeve used in conjunction with the tension screw is connected to the limiting mechanism and slidably connected along the axial direction of the tension screw.

2. The device for removing concrete adhered to the tensioning screw according to claim 1, characterized in that: A lower platform is provided on the operating frame and below the operating table, and a collecting box opposite to the material dropping port is provided on the lower platform.

3. The device for removing concrete adhered to the tensioning screw according to claim 2, characterized in that: A handle is provided on the outside of the collection box, slide grooves are provided on both sides of the bottom of the collection box, and a slide bar adapted to the slide groove is provided on the lower platform.

4. The device for removing concrete adhered to the tensioning screw according to claim 1, characterized in that: The locking mechanism includes a positioning cylinder fixed on the output end of the motor. A number of locking screw holes are arranged on the side wall of the positioning cylinder at equal intervals along the circumferential direction. The axis of the locking screw hole is perpendicular to the axis of the positioning cylinder. A locking bolt is threaded into the locking screw hole, and the inner end of the locking bolt is against the tension screw.

5. The device for removing concrete adhered to the tensioning screw according to claim 4, characterized in that: The outer end of the locking bolt is T-shaped.

6. The device for removing concrete adhered to the tensioning screw according to claim 1, characterized in that: The fixing frame comprises a ring frame in the middle and supporting legs on both sides fixed to the operating table.

7. The device for removing concrete adhered to the tensioning screw according to claim 6, characterized in that: The limiting mechanism includes limiting arc plates arranged between several annular frames and the motor at intervals along the circumferential direction. A limiting strip is arranged on the inner side of the limiting arc plate along the axial direction of the tension screw, and a limiting groove is arranged on the outer side of the bolt sleeve to be slidably connected to the limiting strip.

8. The device for removing concrete adhered to the tensioning screw according to claim 6, characterized in that: The bolt sleeve is slidably connected with the inner cavity of the annular frame. A limiting hole is provided on the top of the annular frame, and a pin rod is passed through the limiting hole.

Images