Mechanical anchoring device for prestressed steel bars that can be unloaded

Abstract

The application relates to the technical field of steel bar anchoring, and discloses a mechanical prestressed steel bar unloading anchoring device, which comprises a main body mechanism, a load tension mechanism and a fixing mechanism, the load tension mechanism is located at the upper end of the main body mechanism, the fixing mechanism is located at the right side of the load tension mechanism, the main body mechanism comprises a fixing base, a supporting leg and a fixing plate, the supporting leg is fixedly installed at the lower end of the fixing base, the fixing plate is fixedly installed at the left end of the upper end of the fixing base, the load tension mechanism comprises a sliding rail, a limiting groove, a sliding pull plate, a limiting sliding block, a supporting plate, a first air cylinder, a butt joint plate and a second air cylinder. The mechanical prestressed steel bar unloading anchoring device can be used in cooperation with the fixing mechanism to realize all-around fixation of the anchoring device on the steel bar, stretching of the steel bar and unloading of the prestress of the steel bar, and the steel bar can be conveniently poured with concrete after the prestress is unloaded, so that the anchoring device has high practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel bar anchoring, in particular to a mechanical prestressed steel bar unloading anchoring device. BACKGROUND

[0002] Anchoring refers to that the steel bar is wrapped in the concrete, the connection between the concrete and the steel bar is enhanced, the building is more firm, and the purpose is that the two can work together to bear various stresses.

[0003] The prestressed steel bar is subjected to the compressive stress of the concrete of the structural member in advance through the pretensioning method or the post-tensioning method before the structural member is used.

[0004] When the prestress of the steel bar needs to be unloaded, the compressive stress is usually applied by stretching the steel bar, and the prior art usually adopts the stretching mode after high-temperature smelting of the steel bar, but the prior art consumes a large amount of energy after high-temperature smelting of the steel bar, the cost of stretching anchoring is sharply increased, which is not conducive to the long-term development of enterprises, and the practicability is low during operation, so it is particularly important to provide a mechanical anchoring device. SUMMARY

[0005] The present application relates to the technical field of steel bar anchoring, in particular to a mechanical prestressed steel bar unloading anchoring device.

[0006] To achieve the above object, the present application provides the following technical scheme: a mechanical prestressed steel bar unloading anchoring device, comprising a main body mechanism, a load tension mechanism and a fixing mechanism, the load tension mechanism is located at the upper end of the main body mechanism, the fixing mechanism is located at the right side of the load tension mechanism, the main body mechanism comprises a fixed base, a supporting foot and a fixed plate, the supporting foot is fixedly installed at the lower end of the fixed base, the fixed plate is fixedly installed at the left end of the upper end of the fixed base, the load tension mechanism comprises a sliding rail, a limiting groove, a sliding pull plate, a limiting sliding block, a supporting plate, a cylinder one, a butt plate and a cylinder two, and the sliding rail is fixedly installed at the front and rear ends of the upper end of the fixed base.

[0007] Preferably, the limiting groove is fixedly arranged in the middle of the sliding rail, the sliding pull plate is movably installed at the upper end of the sliding rail, the limiting sliding block is fixedly installed at the lower end of the sliding pull plate, the limiting sliding block is matched with the limiting groove, the supporting plate is fixedly installed at the right end of the upper end of the fixed base, the cylinder one is fixedly installed in the middle of the supporting plate, the left end of the cylinder one is fixedly connected with the right end of the sliding pull plate, and the cylinder one is convenient for pulling the sliding pull plate to the right, so that the sliding pull plate is away from the fixed plate and the steel bar is stretched.

[0008] Preferably, the butt plate is fixedly installed at the front and rear ends of the sliding pull plate, the second air cylinder is fixedly installed at the left end of the butt plate, the left end of the second air cylinder is fixedly installed at the right end of the fixed plate, the second air cylinder pushes the fixed plate to the left, and the acting force drives the sliding pull plate to move away from the fixed plate, so that the stability of the steel bar during prestress unloading is high.

[0009] Preferably, the fixing mechanism comprises a concave stabilizing plate, an adaptive groove, a clamping bolt, a limiting plate, a rotating rod, a clamping plate, a fixing nut, a fixing bolt and a clamping block, the concave stabilizing plate is fixedly installed at the left end of the supporting plate, the concave stabilizing plate is located at the right end of the fixed plate, the adaptive groove is fixedly arranged at the middle of the concave stabilizing plate, and the adaptive groove is convenient for storing the steel bar and firmly fixing the two ends of the steel bar when the steel bar needs to be stretched.

[0010] Preferably, the clamping bolt is movably installed at the front and rear ends of the concave stabilizing plate, the clamping bolt is located at the middle of the adaptive groove, the limiting plate is fixedly installed at the left and right ends of the front and rear ends of the upper end of the concave stabilizing plate, the rotating rod is movably installed at the middle of the limiting plate, the rotating rod is rotatably connected with the limiting plate, the clamping plate is fixedly installed at the upper end of the rotating rod, and the fixing nut is fixedly installed at the upper end of the rotating rod, so that the clamping bolt is fixed, and the clamping plate can be fixed.

[0011] Preferably, the fixing nut is located behind the clamping plate, the fixing bolt is fixedly installed at the upper end of the front end of the clamping plate, the fixing bolt is in threaded connection with the fixing nut, the clamping block is fixedly installed at the rear end of the clamping plate, and the clamping block is matched with the adaptive groove, so that the steel bar can be fixed in multiple directions, and the stability of stretching is further improved.

[0012] Preferably, the pouring mechanism comprises a supporting base, a pouring box, a pouring groove, a discharge pipe, a ball valve one, a pouring plate, an inlet and outlet pipe and a ball valve two, the supporting base is movably installed at the outer side of the fixed base, the pouring box is fixedly installed at the upper end of the supporting base, the pouring groove is fixedly arranged at the middle of the pouring box, the discharge pipe is fixedly installed at the left end of the front end of the pouring box, the ball valve one is movably installed at the upper end of the discharge pipe, the lower end of the ball valve one is matched with the inside of the discharge pipe, the pouring plate is fixedly installed at the left end of the pouring box, the inlet and outlet pipe is fixedly installed at the front and rear ends of the pouring box, the ball valve two is movably installed at the upper end of the inlet and outlet pipe, the lower end of the ball valve two is matched with the inside of the inlet and outlet pipe, the steel bar after stretching can be poured with concrete, and anchoring is completed.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. This mechanical unloading prestressed steel bar anchoring device, through the installation of a load tension mechanism and a fixing mechanism, can fix the steel bar in all directions, stretch the steel bar, and unload the prestress of the steel bar, which facilitates the concrete pouring process and has high practicality.

[0015] 2. This mechanical unloading prestressed steel bar anchoring device uses cylinders one, two, and three. Cylinder one pulls to the right, while cylinders two and three push to the left. Under the action of tension and pushing forces, the steel bar is stretched, resulting in good stretching effect and high stability.

[0016] 3. This mechanically unloadable prestressed steel bar anchoring device, through the installation of concave stabilizing plates, clamping blocks and clamping bolts, can firmly fix the steel bar, resulting in high stability during tension. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is an enlarged structural diagram showing a partial detail of the fixing mechanism of the present invention;

[0019] Figure 3 This is a magnified schematic diagram of a partial detail of the load-bearing tension mechanism of the present invention. Figure 1 ;

[0020] Figure 4 This is a magnified schematic diagram of a partial detail of the load-bearing tension mechanism of the present invention. Figure 2 ;

[0021] Figure 5 This is a three-dimensional structural diagram of the casting mechanism of the present invention;

[0022] Figure 6 This is a magnified structural diagram showing a partial detail of the casting mechanism of the present invention.

[0023] In the diagram: 1. Main structure; 101. Fixed base; 102. Support leg; 103. Fixed plate; 2. Load-bearing tension mechanism; 201. Slide rail; 202. Limiting groove; 203. Sliding pull plate; 204. Limiting slider; 205. Support plate; 206. Cylinder 1; 207. Connecting plate; 208. Cylinder 2; 3. Fixing mechanism; 301. Concave stabilizing plate; 302. Adaptor groove; 303. Clamping bolt; 304. Limiting plate; 305. Rotating rod; 306. Clamping plate; 307. Fixing nut; 308. Fixing bolt; 309. Clamping block; 4. Pouring mechanism; 401. Support base; 402. Pouring box; 403. Pouring trough; 404. Discharge pipe; 405. Ball valve 1; 406. Pouring plate; 407. Inlet and outlet pipes; 408. Ball valve 2. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0025] Please refer to Figures 1-6 The present application provides a technical solution: a mechanical anchoring device capable of unloading prestressed steel bars, comprising a main body mechanism 1, a load tension mechanism 2 and a fixing mechanism 3. The load tension mechanism 2 is located at the upper end of the main body mechanism 1, and the fixing mechanism 3 is located at the right side of the load tension mechanism 2. The main body mechanism 1 comprises a fixed base 101, a supporting leg 102 and a fixed plate 103. The supporting leg 102 is fixedly installed at the lower end of the fixed base 101, and the fixed plate 103 is fixedly installed at the left end of the upper end of the fixed base 101. The load tension mechanism 2 comprises a sliding rail 201, a limiting groove 202, a sliding pull plate 203, a limiting sliding block 204, a supporting plate 205, a cylinder one 206, a butt plate 207 and a cylinder two 208. The sliding rail 201 is fixedly installed at the front and rear ends of the upper end of the fixed base 101.

[0026] The limiting groove 202 is fixedly arranged at the middle part of the sliding rail 201, the sliding pull plate 203 is movably installed at the upper end of the sliding rail 201, the limiting sliding block 204 is fixedly installed at the lower end of the sliding pull plate 203, the limiting sliding block 204 is matched with the limiting groove 202, the supporting plate 205 is fixedly installed at the right end of the upper end of the fixed base 101, the cylinder one 206 is fixedly installed at the middle part of the supporting plate 205, the left end of the cylinder one 206 is fixedly connected with the right end of the sliding pull plate 203, the butt plate 207 is fixedly installed at the front and rear ends of the sliding pull plate 203, the cylinder two 208 is fixedly installed at the left end of the butt plate 207, and the left end of the cylinder two 208 is fixedly installed at the right end of the fixed plate 103. The cylinder one 206 and the cylinder two 208 are synchronously started, the cylinder one 206 pulls the sliding pull plate 203 to the right, the cylinder two 208 pushes the fixed plate 103 to the left, the reaction force of the cylinder two 208 pushing to the left drives the sliding pull plate 203 to move away from the fixed plate 103, so that the steel bars fixed at the middle part are stretched. After stretching, the above-mentioned steps of installing and fixing the steel bars are reversely operated to take out the steel bars, the concrete is poured into the pouring box 402, the stretched steel bars are inserted into the inlet and outlet pipe 407 to push the ball valve two 408, so that the ball valve two 408 is opened and closed, the steel bars are rotated and taken out from the other end of the inlet and outlet pipe 407, the ball valve two 408 is closed, and the anchoring is completed. When the concrete needs to be discharged, the ball valve one 405 is opened to discharge the concrete.

[0027] The fixing mechanism 3 comprises a concave stabilizing plate 301, an adaptive groove 302, a clamping bolt 303, a limiting plate 304, a rotating rod 305, a clamping plate 306, a fixing nut 307, a fixing bolt 308 and a clamping block 309, the concave stabilizing plate 301 is fixedly installed at the left end of the supporting plate 205, the concave stabilizing plate 301 is located at the right end of the fixing plate 103, the adaptive groove 302 is fixedly arranged at the middle part of the concave stabilizing plate 301, the clamping bolt 303 is movably installed at the front and back ends of the concave stabilizing plate 301, the clamping bolt 303 is located at the middle part of the adaptive groove 302, the limiting plate 304 is fixedly installed at the left and right ends of the front and back ends of the upper end of the concave stabilizing plate 301, the rotating rod 305 is movably installed at the middle part of the limiting plate 304, the rotating rod 305 is rotatably connected with the limiting plate 304, the clamping plate 306 is fixedly installed at the upper end of the rotating rod 305, the fixing nut 307 is fixedly installed at the upper end of the rotating rod 305, the fixing nut 307 is located behind the clamping plate 306, the fixing bolt 308 is fixedly installed at the upper end of the front end of the clamping plate 306, the fixing bolt 308 is threadedly connected with the fixing nut 307, the clamping block 309 is fixedly installed at the rear end of the clamping plate 306, the clamping block 309 is matched with the adaptive groove 302, the pouring mechanism 4 comprises a supporting base 401, a pouring box 402, a pouring groove 403, a discharge pipe 404, a ball valve one 405, a pouring plate 406, an inlet and outlet pipe 407 and a ball valve two 408, the supporting base 401 is movably installed at the outer side of the fixing base 101, the pouring box 402 is fixedly installed at the upper end of the supporting base 401, the pouring groove 403 is fixedly arranged at the middle part of the pouring box 402, the discharge pipe 404 is fixedly installed at the left end of the front end of the pouring box 402, the ball valve one 405 is movably installed at the upper end of the discharge pipe 404, the lower end of the ball valve one 405 is matched with the inside of the discharge pipe 404, the pouring plate 406 is fixedly installed at the left end of the pouring box 402, the inlet and outlet pipe 407 is fixedly installed at the front and back ends of the pouring box 402, the ball valve two 408 is movably installed at the upper end of the inlet and outlet pipe 407, the lower end of the ball valve two 408 is matched with the inside of the inlet and outlet pipe 407, the reinforcing steel bars are placed at the middle part of the fixing plate 103 and the sliding pull plate 203, so that the two ends of the reinforcing steel bars are embedded into the adaptive groove 302, the clamping bolt 303 is twisted, so that the clamping bolt 303 moves to the adaptive groove 302, the clamping bolt 303 is close to the two ends of the reinforcing steel bars and clamps the two sides of the two ends of the reinforcing steel bars, the clamping plate 306 is rotated through the rotating rod 305, so that the clamping block 309 is embedded into the adaptive groove 302, the fixing bolt 308 is twisted, so that the fixing bolt 308 is threadedly connected with the fixing nut 307 to fix the clamping plate 306.

[0028] Working principle: when the prestress of the steel bar needs to be unloaded, the steel bar is placed in the middle of the fixed plate 103 and the sliding pull plate 203, so that the two ends of the steel bar are embedded in the matching groove 302, the clamping bolt 303 is screwed, so that the clamping bolt 303 moves towards the matching groove 302, the clamping bolt 303 is close to the two ends of the steel bar, and the two sides of the two ends of the steel bar are clamped, then the clamping plate 306 is rotated through the rotating rod 305, so that the clamping block 309 is embedded in the matching groove 302, the fixed bolt 308 is screwed, so that the fixed bolt 308 is screwed with the fixed nut 307 to fix the clamping plate 306, then the cylinder one 206 and the cylinder two 208 are started synchronously, the cylinder one 206 pulls the sliding pull plate 203 to the right, the cylinder two 208 pushes the fixed plate 103 to the left, the reaction force of the cylinder two 208 pushing to the left drives the sliding pull plate 203 away from the fixed plate 103, so that the steel bar fixed in the middle is stretched, after stretching, the above steps of installing and fixing the steel bar are operated in reverse to take out the steel bar, the concrete is poured into the pouring box (402), the stretched steel bar is inserted into the inlet and outlet pipe (407), the ball valve two (408) is pushed to open and close the ball valve two (408), the steel bar is rotated and taken out from the other end of the inlet and outlet pipe (407), the ball valve two (408) is closed, and the anchoring is completed, when the concrete needs to be discharged, the ball valve one (405) is opened to discharge.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solutions of the present application, and is not a limitation on the protection scope of the present application. Simple modifications or equivalent replacements of the technical solutions of the present application made by ordinary skilled in the art do not deviate from the essence and scope of the technical solutions of the present application.

Claims

1. A mechanical anchoring device for prestressed steel bars that can be unloaded, comprising a main body mechanism (1), a load tension mechanism (2), a fixing mechanism (3) and a pouring mechanism (4), characterized in that: The load tension mechanism (2) is located at the upper end of the main body mechanism (1), the fixed mechanism (3) is located at the right side of the load tension mechanism (2), the main body mechanism (1) comprises a fixed base (101), a supporting leg (102) and a fixed plate (103), the supporting leg (102) is fixedly installed at the lower end of the fixed base (101), and the fixed plate (103) is fixedly installed at the left end of the upper end of the fixed base (101); the load tension mechanism (2) comprises a sliding rail (201), a limiting groove (202), a sliding pull plate (203), a limiting block (204), a supporting plate (205), a cylinder I (206), an abutting plate (207) and a cylinder II (208), and the sliding rail (201) is fixedly installed at the front and rear ends of the upper end of the fixed base (101); The limiting groove (202) is fixedly arranged at the middle of the sliding rail (201), the sliding pull plate (203) is movably installed at the upper end of the sliding rail (201), the limiting block (204) is fixedly installed at the lower end of the sliding pull plate (203), the limiting block (204) is matched with the limiting groove (202), the supporting plate (205) is fixedly installed at the right end of the upper end of the fixed base (101), the cylinder I (206) is fixedly installed at the middle of the supporting plate (205), and the left end of the cylinder I (206) is fixedly connected with the right end of the sliding pull plate (203); The abutting plate (207) is fixedly installed at the front and rear ends of the sliding pull plate (203), the cylinder II (208) is fixedly installed at the left end of the abutting plate (207), and the left end of the cylinder II (208) is fixedly installed at the right end of the fixed plate (103).

2. The mechanical unloading anchorage device for prestressed reinforcement according to claim 1, characterized in that: The fixed mechanism (3) comprises a concave stabilizing plate (301), an adaptive groove (302), a clamping bolt (303), a limiting plate (304), a rotating rod (305), a clamping plate (306), a fixed nut (307), a fixed bolt (308) and a clamping block (309), the concave stabilizing plate (301) is fixedly installed at the left end of the supporting plate (205), and the concave stabilizing plate (301) is located at the right end of the fixed plate (103); the adaptive groove (302) is fixedly arranged at the middle of the concave stabilizing plate (301).

3. The mechanical unloading anchorage device for prestressed reinforcement according to claim 2, characterized in that: The clamping bolt (303) is movably installed at the front and rear ends of the concave stabilizing plate (301), the clamping bolt (303) is located at the middle of the adaptive groove (302), the limiting plate (304) is fixedly installed at the left and right ends of the front and rear ends of the upper end of the concave stabilizing plate (301), the rotating rod (305) is movably installed at the middle of the limiting plate (304), the rotating rod (305) is rotationally connected with the limiting plate (304), the clamping plate (306) is fixedly installed at the upper end of the rotating rod (305), and the fixed nut (307) is fixedly installed at the upper end of the rotating rod (305).

4. The mechanical unloading anchorage device for prestressed reinforcement according to claim 3, characterized in that: The fixed nut (307) is located at the rear of the clamping plate (306), the fixed bolt (308) is fixedly installed at the upper end of the front end of the clamping plate (306), the fixed bolt (308) is in threaded connection with the fixed nut (307), the clamping block (309) is fixedly installed at the rear end of the clamping plate (306), and the clamping block (309) is matched with the matching groove (302).

5. The mechanical unloading anchorage device for prestressed reinforcement according to claim 4, characterized in that: The pouring mechanism (4) comprises a supporting base (401), a pouring box (402), a pouring groove (403), a discharge pipe (404), a ball valve I (405), a pouring plate (406), an in-out pipe (407) and a ball valve II (408), the supporting base (401) is movably installed on the outer side of the fixed base (101), the pouring box (402) is fixedly installed on the upper end of the supporting base (401), the pouring groove (403) is fixedly arranged in the middle of the pouring box (402), the discharge pipe (404) is fixedly installed on the left end of the front end of the pouring box (402), the ball valve I (405) is movably installed on the upper end of the discharge pipe (404), the lower end of the ball valve I (405) is matched with the inside of the discharge pipe (404), the pouring plate (406) is fixedly installed on the left end of the pouring box (402), the in-out pipe (407) is fixedly installed on the front and rear ends of the pouring box (402), the ball valve II (408) is movably installed on the upper end of the in-out pipe (407), and the lower end of the ball valve II (408) is matched with the inside of the in-out pipe (407).

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