Reinforcing steel bar prestress tensioning machine and using method thereof

Abstract

The invention discloses a steel bar prestress tensioning machine and a using method thereof, and relates to the technical field of constructional engineering. Comprising a machine body, and a fixing frame is mounted at the top of the machine body; the control mechanism is arranged above the machine body and comprises a tensioning mechanism and a connecting seat, an adjusting column is installed at the bottom of the connecting seat, a base is installed at the bottom of the adjusting column, and the adjusting column is used for controlling the height of the machine body; and the connecting mechanism is arranged in the fixing frame, the connecting mechanism comprises a second adjusting rod, a suction cup is installed on the outer portion of the second adjusting rod, and the suction cup is used for being sucked and fixed to the wall where the reinforcing steel bar is located. The connecting bases are installed at the bottom of the machine body, universal wheels are installed at the bottoms of the bases, and the number of the connecting bases, the number of the adjusting columns and the number of the bases are all three.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and specifically relates to a steel bar prestress tensioning machine and a using method thereof. Background Art

[0002] The prestress tensioning equipment is the equipment used to apply prestress values. Through the work of the equipment, prestress-related values are generated by tensioning. The prestress tensioning equipment mainly consists of a jack used for tensioning and an electric oil pump used for tensioning, which are used in combination. By working, the force of the steel strands or steel bars in the anchor is increased to give prestress values.

[0003] In the invention patent with the authorization announcement number CN110561614B, a steel bar prestress tensioning and releasing device is disclosed. The steel bars that need to be provided with prestress are clamped by a clamping mechanism, and then the tensioning screw rod is driven to rotate by a tensioning motor, the length of the tensioning screw rod is changed, so as to change the position of the clamping mechanism, the steel bars are pulled to a preset length, and the prestress is maintained by a hydraulic rod after being pulled to the preset length. When performing the releasing process, first, the pre-tightening nut is clamped by the clamping mechanism, and then the hydraulic rod and the clamping mechanism are driven to rotate by a releasing motor to release the pre-tightening nut. However, when tensioning steel bars at a height different from that of the equipment, the steel bars are prone to be in an inclined state, which affects the progress of the tensioning work. Summary of the Invention

[0004] To overcome the problem that when tensioning steel bars at a height different from that of the equipment, the steel bars are prone to be in an inclined state, which affects the progress of the tensioning work, the present invention provides a steel bar prestress tensioning machine, including a machine body, and a fixing frame is installed at the top of the machine body;

[0005] A control mechanism, the control mechanism is arranged above the machine body, the control mechanism includes a tensioning mechanism and a connecting seat, an adjusting column is installed at the bottom of the connecting seat, a base is installed at the bottom of the adjusting column, and the adjusting column is used to control the height of the machine body;

[0006] A connecting mechanism, the connecting mechanism is arranged inside the fixing frame, the connecting mechanism includes a second adjusting rod, and a suction cup is installed outside the second adjusting rod, and the suction cup is used to suck and fix on the wall where the steel bar is located.

[0007] Preferably, the connecting seat is installed at the bottom of the machine body, universal wheels are installed at the bottom of the base, there are three connecting seats, adjusting columns and bases, and the tensioning mechanism is arranged above the machine body.

[0008] Preferably, the control mechanism further includes:

[0009] A rotating shaft, the rotating shaft is installed outside the machine body, and a placing mechanism is connected to the outside of the rotating shaft;

[0010] Motor box, the motor box is installed outside the body, and a motor is installed inside the motor box. The rotating shaft is connected to the output end of the motor.

[0011] Preferably, the placing mechanism includes:

[0012] Chassis, the chassis is connected to the rotating shaft, and a first lifting plate is installed on the top of the chassis;

[0013] First fixing ring, the first fixing ring is installed inside the chassis, a first channel is opened inside the first fixing ring, and a first elastic rod is installed on the top of the first fixing ring. There are two first elastic rods and they are symmetrically arranged;

[0014] First sliding groove, the first sliding groove is opened inside the chassis, a first sliding plate is slidably connected inside the first sliding groove, and a connecting component is installed outside the first sliding plate;

[0015] Backrest plate, the backrest plate is installed above the chassis, and a fixing cylinder is installed inside the backrest plate.

[0016] Preferably, the connecting component includes:

[0017] First push rod, the first push rod is installed outside the first sliding plate, and a connecting cylinder is installed outside the first push rod;

[0018] Positioning cylinder, the positioning cylinder is connected to the outside of the connecting cylinder, a second push rod is installed inside the positioning cylinder, and a brush head is installed outside the second push rod;

[0019] First adjusting rod, the first adjusting rod is installed outside the connecting cylinder;

[0020] Second fixing ring, the second fixing ring is installed outside the first adjusting rod, a second channel is opened inside the second fixing ring, and a second elastic rod is installed outside the second fixing ring. There are multiple second elastic rods;

[0021] Third fixing ring, the third fixing ring is installed outside the second fixing ring, and a third channel is opened inside the third fixing ring.

[0022] Preferably, the connecting mechanism further includes:

[0023] Second sliding groove, the second sliding groove is opened inside the fixing frame, a second sliding plate and a sliding frame are slidably connected inside the second sliding groove, and a limiting component is installed outside the second sliding plate;

[0024] Connecting ring, the connecting ring is connected to the tensioning mechanism, and the connecting ring is connected to the limiting component;

[0025] A through slot is provided inside the fixed frame. A moving plate is slidably connected inside the through slot. The moving plate is connected to a second adjusting rod, and a spring is installed outside the moving plate.

[0026] Preferably, the limiting assembly includes:

[0027] A central column is connected to the connecting ring and is also connected to the second sliding plate.

[0028] A clamping frame is installed outside the central column and is connected to the sliding frame.

[0029] A groove is provided inside the clamping frame. A third push rod is installed inside the groove, and a semi-ring is installed outside the third push rod.

[0030] Preferably, the limiting assembly further includes:

[0031] A fixing groove is provided inside the clamping frame.

[0032] A second lifting plate is installed above the clamping frame. A blocking plate and a clamping rod are installed at the bottom of the second lifting plate.

[0033] The present invention provides a method for using a steel bar prestress tensioning machine, including the following steps:

[0034] S1. Before using the equipment, adjust the control mechanism and the connecting mechanism to make the equipment fit the height of the steel bar and fix the position of the equipment.

[0035] S2. Adjust the placement mechanism and the tensioning mechanism to prepare for the pre-tensioning test of the equipment.

[0036] S3. Adjust the connecting mechanism to fix the position of the steel bar, turn on the tensioning mechanism, and perform the tensioning work on the steel bar.

[0037] S4. After the work is completed, adjust the tensioning mechanism and the connecting mechanism, then release the steel bar. After the work is completed, adjust the placement mechanism to place and protect the power cord.

[0038] The present invention provides a steel bar prestress tensioning machine and its using method. It has the following beneficial effects:

[0039] 1. The prestressed tensioning machine for steel bars and its using method adjust the stroke of the adjusting column manually through the setting of a connecting mechanism and a control mechanism to control the height where the suction cup is located, and then control the suction cup to suck and fix on the wall where the steel bar is located, thereby strengthening the position of the equipment. When tensioning steel bars at a height different from that of the equipment, the steel bars are prone to be in an inclined state, affecting the progress of the tensioning work. Therefore, a connecting mechanism and a control mechanism are set to adjust the height of the equipment so that the height of the tensioning mechanism matches the height of the steel bars to solve the above problems. At the same time, during the use of the suction cup, the fixing frame can be made to fit the wall more closely, avoiding the situation where the position of the fixing frame moves during the tensioning process, resulting in an unsatisfactory tensioning effect.

[0040] 2. The prestressed tensioning machine for steel bars and its using method protect the connecting end of the power cord through the setting of a placing mechanism and a connecting component. During the process of moving the equipment, the power cord is in a disconnected state, and the connecting end of the power cord is prone to friction and collision with the equipment, and dust and impurities are easily attached to the connecting end. Therefore, a placing mechanism and a connecting component are set to fix and place the power cord. When the power cord is not in use, the connecting end of the power cord is in the fixing cylinder, thereby protecting the connecting end of the power cord, and the inside of the fixing cylinder can be regularly cleaned with a brush head to reduce the dust and impurities in the fixing cylinder.

[0041] 3. The prestressed tensioning machine for steel bars and its using method fix the position of the equipment through the setting of a connecting mechanism. By controlling the suction cup to suck and fix on the wall where the steel bar is located, the position of the equipment is strengthened, making the fixing frame fit the wall more closely, avoiding the situation where the position of the fixing frame moves during the tensioning process, resulting in an unsatisfactory tensioning effect.

[0042] 4. The prestressed tensioning machine for steel bars and its using method fix the steel bar through the setting of a limiting component. When fixing the position of the steel bar, a suitable set of third push rods and semi-rings are selected according to the size of the steel bar to fix the steel bar, and steel bars of various different sizes can be fixed. After the tensioning work is completed, by adjusting the state of the second lifting plate, the plug plate is pressed and fixed on the steel bar, which can fix and protect the steel bar, avoiding the steel bar moving when the power supply is suddenly cut off, resulting in injury to the worker. After the worker disassembles the power cord and fixes and protects the power cord, then the second lifting plate is opened for the worker to disassemble the steel bar, thereby improving the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is the flow block diagram of the present invention;

[0044] Figure 2 is the overall structural schematic diagram of the present invention;

[0045] Figure 3 is the top structural schematic diagram of the present invention;

[0046] Figure 4 Schematic diagram of the control mechanism structure of the present invention;

[0047] Figure 5 Schematic diagram of the placement mechanism structure of the present invention;

[0048] Figure 6 Schematic diagram of the internal structure of the placement mechanism of the present invention;

[0049] Figure 7 Schematic diagram of the connection component structure of the present invention;

[0050] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at position A in;

[0051] Figure 9 Schematic diagram of the connection mechanism structure of the present invention;

[0052] Figure 10 For the present invention Figure 9 Schematic diagram of the structure at position B in;

[0053] Figure 11 Schematic diagram of the limit component structure of the present invention;

[0054] Figure 12 For the present invention Figure 11 Schematic diagram of the structure at position C in.

[0055] In the figure: 1, body; 2, control mechanism; 201, connecting seat; 202, adjusting column; 203, base; 204, tensioning mechanism; 205, rotating shaft; 206, motor box; 3, placement mechanism; 301, chassis; 302, first lifting plate; 303, first fixing ring; 304, first elastic rod; 305, first chute; 306, first sliding plate; 307, connection component; 3071, first push rod; 3072, connecting cylinder; 3073, clamping cylinder; 3074, second push rod; 3075, brush head; 3076, first adjusting rod; 3077, second fixing ring; 3078, third fixing ring; 3079, second elastic rod; 308, back plate; 309, fixing cylinder; 4, fixing frame; 5, connection mechanism; 501, second chute; 502, connection ring; 503, limit component; 5031, central column; 5032, clamping frame; 5033, groove; 5034, third push rod; 5035, half ring; 5036, fixing groove; 5037, second lifting plate; 5038, clamping rod; 5039, plugging plate; 504, second sliding plate; 505, through groove; 506, moving plate; 507, second adjusting rod; 508, suction cup; 509, spring; 510, sliding frame. Detailed implementation manners

[0056] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0057] As Figures 1 - 12 shown, the present invention provides a technical solution: including a body 1, and a fixing frame 4 is installed on the top of the body 1;

[0058] A control mechanism 2, the control mechanism 2 is arranged above the body 1, the control mechanism 2 includes a tensioning mechanism 204 and a connecting seat 201, an adjusting column 202 is installed at the bottom of the connecting seat 201, a base 203 is installed at the bottom of the adjusting column 202, and the adjusting column 202 is used to control the height of the body 1 so that the tensioning mechanism 204 is at the same height as the steel bar. The connecting seat 201 is installed at the bottom of the body 1, and universal wheels are installed at the bottom of the base 203. There are three connecting seats 201, adjusting columns 202 and bases 203, and the tensioning mechanism 204 is arranged above the body 1;

[0059] A connecting mechanism 5, the connecting mechanism 5 is arranged inside the fixing frame 4, the connecting mechanism 5 includes a second adjusting rod 507, and a suction cup 508 is installed outside the second adjusting rod 507. The suction cup 508 is used to suck and fix to the wall where the steel bar is located, thereby fixing the position of the device and playing a role in calibrating the height of the device. An electric oil pump is provided in the tensioning mechanism 204, and the electric oil pump drives the jack to drive the connecting mechanism 5 to perform the tensioning work.

[0060] Before using the device, adjust the control mechanism 2 and the connecting mechanism 5 to make the device adapt to the height of the steel bar and fix the position of the device. Subsequently, adjust the placing mechanism 3 and the tensioning mechanism 204 to perform the test preparation work before tensioning the device. Subsequently, adjust the connecting mechanism 5 to fix the position of the steel bar, turn on the tensioning mechanism 204, and perform the tensioning work on the steel bar. After the tensioning is completed, adjust the tensioning mechanism 204 and the connecting mechanism 5 to release the steel bar, adjust the placing mechanism 3, and after the work is completed, place and protect the power cord.

[0061] The control mechanism 2 further includes:

[0062] A rotating shaft 205, the rotating shaft 205 is installed outside the body 1, and a placing mechanism 3 is connected to the outside of the rotating shaft 205;

[0063] A motor box 206, the motor box 206 is installed outside the body 1, a motor is installed inside the motor box 206, and the rotating shaft 205 is connected to the output end of the motor.

[0064] When cleaning the placing mechanism 3, turn on the motor in the motor box 206. The motor drives the rotating shaft 205 and the placing mechanism 3 to deflect, facilitating the sliding off of dust and impurities in the placing mechanism 3.

[0065] When adjusting the height of the equipment, manually adjust the stroke of the adjusting column 202 so that the suction cup 508 reaches the same height as the steel bar.

[0066] The placing mechanism 3 includes:

[0067] A chassis 301, the chassis 301 is connected to the rotating shaft 205, and a first lifting plate 302 is installed on the top of the chassis 301;

[0068] A first fixing ring 303, the first fixing ring 303 is installed inside the chassis 301. A first channel is opened inside the first fixing ring 303. A first elastic rod 304 is installed on the top of the first fixing ring 303. There are two first elastic rods 304 and they are symmetrically arranged. The first fixing ring 303 is made of rubber material. The power cord is located in the first fixing ring 303. Multiple first ventilation openings are opened in the first fixing ring 303 to facilitate the heat dissipation of the power cord;

[0069] A first sliding groove 305, the first sliding groove 305 is opened inside the chassis 301. A first sliding plate 306 is slidably connected inside the first sliding groove 305. A connecting component 307 is installed outside the first sliding plate 306. A first power system is arranged inside the first sliding plate 306;

[0070] A backing plate 308, the backing plate 308 is installed above the chassis 301, and a fixing cylinder 309 is installed inside the backing plate 308.

[0071] Before using the equipment, turn on the first lifting plate 302. The first lifting plate 302 gradually moves away from the chassis 301 to reserve a working space for placing the power cord. Turn on the first power system in the first sliding plate 306. The first sliding plate 306 starts to move in the first sliding groove 305 so that the first sliding plate 306 is in the middle position in the first sliding groove 305. The first sliding plate 306 drives the connecting component 307 to move.

[0072] Manually insert the power cord in the tensioning mechanism 204 into the first fixing ring 303, and insert the connecting end of the power cord into the connecting component 307. Then adjust the first power system in the first sliding plate 306 and adjust the connecting component 307 so that the connecting end of the power cord is located in the fixing cylinder 309 to protect the connecting end.

[0073] Before testing the equipment, adjust the first power system in the first sliding plate 306 and adjust the connecting component 307 so that the connecting end of the power cord disengages from the fixing cylinder 309. Let the worker manually pull the connecting end and install the power cord to perform testing and tensioning work.

[0074] After the work is completed, adjust the position of the power cord in the connection component 307 so that the connection end of the power cord returns to the fixing cylinder 309 again.

[0075] The connection component 307 includes:

[0076] The first push rod 3071 is installed outside the first sliding plate 306, and a connection cylinder 3072 is installed outside the first push rod 3071;

[0077] The clamping cylinder 3073 is connected to the outside of the connection cylinder 3072, a second push rod 3074 is installed inside the clamping cylinder 3073, and a brush head 3075 is installed outside the second push rod 3074;

[0078] The first adjusting rod 3076 is installed outside the connection cylinder 3072;

[0079] The second fixing ring 3077 is installed outside the first adjusting rod 3076. A second channel is provided inside the second fixing ring 3077. A second elastic rod 3079 is installed outside the second fixing ring 3077. There are multiple second elastic rods 3079. The second fixing ring 3077 is made of rubber material, and multiple second ventilation openings are provided in the second fixing ring 3077 to facilitate the heat dissipation of the power cord;

[0080] The third fixing ring 3078 is installed outside the second fixing ring 3077. A third channel is provided inside the third fixing ring 3078. The third fixing ring 3078 is made of rubber material.

[0081] Open the first push rod 3071. The first push rod 3071 drives the connection cylinder 3072 and the first adjusting rod 3076 to move. The first adjusting rod 3076 drives the second fixing ring 3077 to move until the second fixing ring 3077 is in the middle area on the chassis 301. Manually toggle the second elastic rod 3079 and manually clip the power cord into the second fixing ring 3077 so that the connection end of the power cord is outside the third fixing ring 3078, thereby fixing the position of the connection end of the power cord.

[0082] When it is necessary to protect the connection end of the power cord, adjust the first push rod 3071 to the initial state and turn on the first power system in the first sliding plate 306. The first sliding plate 306 drives the first push rod 3071, the connection cylinder 3072, the first adjusting rod 3076, the second fixing ring 3077 and the connection end of the power cord to move until the connection end of the power cord enters the fixing cylinder 309.

[0083] When the device is not in use, the first push rod 3071 is activated. The first push rod 3071 drives the connecting cylinder 3072 and the clamping cylinder 3073 to move. The second push rod 3074 in the clamping cylinder 3073 is activated to the reciprocating motion mode. The second push rod 3074 drives the brush head 3075 to repeatedly rub against the inside of the fixed cylinder 309, promoting the separation of dust and impurities from the fixed cylinder 309.

[0084] The connecting mechanism 5 further includes:

[0085] The second sliding groove 501 is opened inside the fixed frame 4. A second sliding plate 504 and a sliding frame 510 are slidably connected inside the second sliding groove 501. A limiting component 503 is installed outside the second sliding plate 504;

[0086] The connecting ring 502 is connected to the jack in the tensioning mechanism 204. The connecting ring 502 is connected to the limiting component 503;

[0087] The through groove 505 is opened inside the fixed frame 4. A moving plate 506 is slidably connected inside the through groove 505. The moving plate 506 is connected to the second adjusting rod 507. A spring 509 is installed outside the moving plate 506. The spring 509 is installed inside the second sliding groove 501.

[0088] Before using the device, push the device to the area of the steel bar to be tensioned, and manually adjust the stroke of the adjusting column 202 to make the suction cup 508 at the same height as the steel bar. Activate the tensioning mechanism 204. The tensioning mechanism 204 drives the connecting ring 502, the limiting component 503, the second sliding plate 504 and the sliding frame 510 to move towards the steel bar. The sliding frame 510 starts to squeeze the moving plate 506. The moving plate 506 drives the second adjusting rod 507 and the suction cup 508 to move outwards. At this time, the spring 509 is squeezed until the suction cup 508 is suction-fixed on the wall where the steel bar is located. Observe whether the height of the suction cup 508 is the same as that of the steel bar. If not, adjust the tensioning mechanism 204 and pry open the suction cup 508, and readjust the stroke of the adjusting column 202. Repeat the above actions to make the suction cup 508 at the same height as the steel bar.

[0089] By setting the connecting mechanism 5 and the control mechanism 2, manually adjust the stroke of the adjusting column 202 to control the height of the suction cup 508, and then control the suction cup 508 to be suction-fixed on the wall where the steel bar is located, thereby strengthening the position of the device, making the fixed frame 4 fit the wall more closely, and avoiding the situation that the position of the fixed frame 4 moves during the tensioning process, resulting in an unsatisfactory tensioning effect.

[0090] The limiting component 503 includes:

[0091] The central column 5031 is connected to the connecting ring 502. The central column 5031 is connected to the second sliding plate 504;

[0092] The clamping frame 5032 is installed outside the central column 5031, and the clamping frame 5032 is connected to the sliding frame 510;

[0093] The groove 5033 is opened inside the clamping frame 5032. A third push rod 5034 is installed inside the groove 5033, and a half-ring 5035 is installed outside the third push rod 5034. There are three sets of both the third push rod 5034 and the half-ring 5035. Each set is provided with two third push rods 5034 and two half-rings 5035, and each set is symmetrically arranged. The sizes of the three sets of half-rings 5035 are different;

[0094] The fixing groove 5036 is opened inside the clamping frame 5032;

[0095] The second lifting plate 5037 is installed above the clamping frame 5032. A blocking plate 5039 and a clamping rod 5038 are installed at the bottom of the second lifting plate 5037.

[0096] Before installing the steel bar, select a suitable set of the third push rods 5034 and the half-rings 5035 according to the size of the steel bar. Open the second lifting plate 5037, and the second lifting plate 5037 gradually disengages from the clamping frame 5032. As the tensioning mechanism 204 drives the connecting ring 502 and the clamping frame 5032 to move, the steel bar gradually moves through the fixing groove 5036 to between the two half-rings 5035. Open the corresponding set of the third push rods 5034, and the two third push rods 5034 drive the two half-rings 5035 to move towards the middle, and the two half-rings 5035 clamp and fix one end of the steel bar, and a part of the steel bar extends beyond the half-ring 5035. Subsequently, use nuts to reinforce the steel bar at the part where the steel bar extends beyond the half-ring 5035.

[0097] After the tensioning work is completed, adjust the second lifting plate 5037 to the initial state. The clamping rod 5038 is inserted into the clamping frame 5032, and the blocking plate 5039 presses and fixes on the steel bar. Subsequently, the worker disassembles the power cord, and then opens the second lifting plate 5037 for the worker to disassemble the steel bar.

[0098] Working principle: Before using the equipment, adjust the control mechanism 2 and the connecting mechanism 5 to make the equipment adapt to the height of the steel bar and fix the position of the equipment.

[0099] Before using the equipment, push the equipment to the area of the steel bars to be tensioned, and manually adjust the stroke of the adjusting column 202 to make the suction cup 508 consistent with the height of the steel bars, turn on the tensioning mechanism 204, and the tensioning mechanism 204 drives the connecting ring 502, the limit assembly 503, the second slide plate 504 and the sliding frame 510 to move in the direction of the steel bars, and the sliding frame 510 begins to squeeze the movable plate 506, and the movable plate 506 drives the second adjusting rod 507 and the suction cup 508 to move outward. At this time, the spring 509 is squeezed until the suction cup 508 is sucked and fixed on the wall where the steel bars are located. Observe whether the height of the suction cup 508 is consistent with the steel bars. If not, adjust the tensioning mechanism 204 and pry open the suction cup 508, readjust the stroke of the adjusting column 202, and repeat the above actions to make the suction cup 508 consistent with the height of the steel bars.

[0100] Then adjust the placement mechanism 3 and the tensioning mechanism 204 to prepare the equipment for testing before tensioning. Before using the equipment, open the first lifting plate 302, and the first lifting plate 302 gradually moves away from the chassis 301 to reserve a working space for placing the power cord. Open the first power system in the first slide plate 306, and the first slide plate 306 starts to move in the first slide groove 305, so that the first slide plate 306 is in the center position of the first slide groove 305, and the first slide plate 306 drives the connecting component 307 to move.

[0101] Manually insert the power cord in the tensioning mechanism 204 into the first fixing ring 303, and insert the connecting end of the power cord into the connecting assembly 307, open the first push rod 3071, the first push rod 3071 drives the connecting tube 3072 and the first adjusting rod 3076 to move, and the first adjusting rod 3076 drives the second fixing ring 3077 to move until the second fixing ring 3077 is in the middle area on the chassis 301, manually move the second elastic rod 3079, and manually insert the power cord into the second fixing ring 3077, so that the connecting end of the power cord is outside the third fixing ring 3078, thereby fixing the position of the connecting end of the power cord.

[0102] Then, the first power system in the first slide 306 is adjusted, and the connecting assembly 307 is adjusted, so that the connecting end of the power cord is in the fixing cylinder 309 to protect the connecting end. The first push rod 3071 is adjusted to the initial state, and the first power system in the first slide 306 is turned on. The first slide 306 drives the first push rod 3071, the connecting cylinder 3072, the first adjustment rod 3076, the second fixing ring 3077 and the connecting end of the power cord to move until the connecting end of the power cord enters the fixing cylinder 309.

[0103] Before testing the equipment, adjust the first power system in the first slide 306 and adjust the stroke of the first push rod 3071 in the connecting assembly 307 so that the connecting end of the power cord is separated from the fixing tube 309. The worker manually pulls the connecting end and installs the power cord for testing and tensioning work.

[0104] Subsequently, adjust the connecting mechanism 5 to fix the position of the steel bar. Before installing the steel bar, select a suitable set of third push rods 5034 and half rings 5035 according to the size of the steel bar. Open the second lifting plate 5037. The second lifting plate 5037 gradually disengages from the clamping frame 5032. As the tensioning mechanism 204 drives the connecting ring 502 and the clamping frame 5032 to move, the steel bar gradually moves through the fixing groove 5036 to between the two half rings 5035. Open the corresponding set of third push rods 5034. The two third push rods 5034 drive the two half rings 5035 to move towards the middle. The two half rings 5035 clamp and fix one end of the steel bar, and a part of the steel bar extends beyond the half rings 5035. Subsequently, use nuts to reinforce the steel bar at the part that extends beyond the half rings 5035. Open the tensioning mechanism 204 to carry out the tensioning work on the steel bar.

[0105] After the tensioning is completed, adjust the tensioning mechanism 204 and the connecting mechanism 5 to release the steel bar, and then adjust the placing mechanism 3.

[0106] After the tensioning work is completed, adjust the second lifting plate 5037 to its initial state. The positioning rod 5038 is inserted into the clamping frame 5032. The blocking plate 5039 is pressed and fixed on the steel bar. The worker manually pulls the position of the power cord in the second fixing ring 3077 to make the connecting end of the power cord return to the fixing cylinder 309 again. Then open the second lifting plate 5037 for the worker to disassemble the steel bar.

[0107] The present invention provides a method for using a steel bar prestressing tensioning machine, including the following steps:

[0108] S1. Before using the equipment, adjust the control mechanism 2 and the connecting mechanism 5 to make the equipment adapt to the height of the steel bar and fix the position of the equipment;

[0109] S2. Adjust the placing mechanism 3 and the tensioning mechanism 204 to carry out the test preparation work before tensioning the equipment;

[0110] S3. Adjust the connecting mechanism 5 to fix the position of the steel bar, and open the tensioning mechanism 204 to carry out the tensioning work on the steel bar;

[0111] S4. After the tensioning is completed, adjust the tensioning mechanism 204 and the connecting mechanism 5. Subsequently, release the steel bar. After the work is completed, adjust the placing mechanism 3 to place and protect the power cord.

[0112] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments in the present invention without creative efforts shall fall within the scope of protection of the present invention. Structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented by conventional means in the art unless otherwise specified and limited.

Claims

1. A prestressed tensioning machine for steel bars, comprising a machine body (1), characterized in that: A fixing frame (4) is installed on the top of the machine body (1); A control mechanism (2), the control mechanism (2) is arranged above the machine body (1), the control mechanism (2) includes a tensioning mechanism (204) and a connecting seat (201), a regulating column (202) is installed at the bottom of the connecting seat (201), a base (203) is installed at the bottom of the regulating column (202), and the regulating column (202) is used to control the height at which the machine body (1) is located; A connecting mechanism (5), the connecting mechanism (5) is arranged inside the fixing frame (4), the connecting mechanism (5) includes a second regulating rod (507), a suction cup (508) is installed on the outside of the second regulating rod (507), and the suction cup (508) is used for sucking and fixing to the wall where the steel bar is located.

2. The prestressed reinforcement tensioning machine according to claim 1, wherein: The connecting seat (201) is installed at the bottom of the machine body (1), universal wheels are installed at the bottom of the base (203), there are three connecting seats (201), regulating columns (202) and bases (203) respectively, and the tensioning mechanism (204) is arranged above the machine body (1).

3. The steel bar prestressing tensioning machine according to claim 1, characterized in that: The control mechanism (2) further includes: A rotating shaft (205), the rotating shaft (205) is installed outside the machine body (1), and a placing mechanism (3) is connected to the outside of the rotating shaft (205); A motor box (206), the motor box (206) is installed outside the machine body (1), a motor is installed inside the motor box (206), and the rotating shaft (205) is connected to the output end of the motor.

4. The steel bar prestressing tensioning machine according to claim 3, characterized in that: The placing mechanism (3) includes: A chassis (301), the chassis (301) is connected to the rotating shaft (205), and a first lifting plate (302) is installed on the top of the chassis (301); A first fixing ring (303), the first fixing ring (303) is installed inside the chassis (301), a first channel is opened inside the first fixing ring (303), and a first elastic rod (304) is installed on the top of the first fixing ring (303), there are two first elastic rods (304) and they are symmetrically arranged; A first chute (305), the first chute (305) is opened inside the chassis (301), a first sliding plate (306) is slidably connected inside the first chute (305), and a connecting component (307) is installed on the outside of the first sliding plate (306); A back plate (308), the back plate (308) is installed above the chassis (301), and a fixing cylinder (309) is installed inside the back plate (308).

5. The steel bar prestressing tensioning machine according to claim 4, characterized in that: The connecting component (307) includes: A first push rod (3071), the first push rod (3071) is installed on the outside of the first sliding plate (306), and a connecting cylinder (3072) is installed on the outside of the first push rod (3071); A clamping cylinder (3073), the clamping cylinder (3073) is connected to the outside of a connecting cylinder (3072), a second push rod (3074) is installed inside the clamping cylinder (3073), and a brush head (3075) is installed outside the second push rod (3074); A first adjusting rod (3076), the first adjusting rod (3076) is installed outside the connecting cylinder (3072); A second fixing ring (3077), the second fixing ring (3077) is installed outside the first adjusting rod (3076), a second channel is opened inside the second fixing ring (3077), and a second elastic rod (3079) is installed outside the second fixing ring (3077), and a plurality of the second elastic rods (3079) are provided; A third fixing ring (3078), the third fixing ring (3078) is installed outside the second fixing ring (3077), and a third channel is opened inside the third fixing ring (3078).

6. The prestressed steel bar tensioning machine according to claim 1, characterized in that: The connecting mechanism (5) further includes: A second sliding groove (501), the second sliding groove (501) is opened inside a fixing frame (4), a second sliding plate (504) and a sliding frame (510) are slidably connected inside the second sliding groove (501), and a limiting component (503) is installed outside the second sliding plate (504); A connecting ring (502), the connecting ring (502) is connected to a tensioning mechanism (204), and the connecting ring (502) is connected to the limiting component (503); A through groove (505), the through groove (505) is opened inside the fixing frame (4), a moving plate (506) is slidably connected inside the through groove (505), the moving plate (506) is connected to a second adjusting rod (507), and a spring (509) is installed outside the moving plate (506).

7. The prestressed steel bar tensioning machine according to claim 6, characterized in that: The limiting component (503) includes: A central column (5031), the central column (5031) is connected to the connecting ring (502), and the central column (5031) is connected to the second sliding plate (504); A clamping frame (5032), the clamping frame (5032) is installed outside the central column (5031), and the clamping frame (5032) is connected to the sliding frame (510); A groove (5033), the groove (5033) is opened inside the clamping frame (5032), a third push rod (5034) is installed inside the groove (5033), and a half ring (5035) is installed outside the third push rod (5034).

8. The prestressed steel bar tensioning machine according to claim 7, characterized in that: The limiting component (503) further includes: A fixing groove (5036), the fixing groove (5036) is opened inside the clamping frame (5032); The second lifting plate (5037), the second lifting plate (5037) is installed above the clamping frame (5032), and a blocking plate (5039) and a clamping rod (5038) are installed at the bottom of the second lifting plate (5037).

9. A method for using a steel bar prestress tensioning machine, characterized in that, Comprising the following steps: S1. Before using the equipment, adjust the control mechanism (2) and the connecting mechanism (5) to make the equipment adapt to the height of the steel bar and fix the position of the equipment; S2. Adjust the placing mechanism (3) and the tensioning mechanism (204) to prepare for the pre-tensioning test of the equipment; S3. Adjust the connecting mechanism (5) to fix the position of the steel bar, turn on the tensioning mechanism (204), and carry out the tensioning work on the steel bar; S4. After the work is completed, adjust the tensioning mechanism (204) and the connecting mechanism (5), then release the steel bar. After the work is completed, adjust the placing mechanism (3) to place and protect the power cord.

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