Guide device for prestressed duct

Abstract

The utility model relates to the technical field of building construction, in particular to a guiding device for a prestressed duct. The fixing assembly comprises an inserting rod fixed to the traction head, a sleeve shell fixed to the traction head, a pressing piece fixed to the sleeve shell and a threaded sleeve connected to the sleeve shell in a threaded mode. A space used for containing the rubber drawing pipe is formed between the inserting rod and the sleeve shell, and the thickness of the pressing piece is gradually increased in the direction away from the drawing head. And the traction mechanism is used for driving the traction head to move and comprises a winch, a traction rope arranged on the winch and a quick assembly component connected with the traction head. The traction device has the effect of facilitating traction installation of the rubber drawing pipe.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a guiding device for a prestressed duct. Background Art

[0002] Prestressed channels are a traditional prestressing technology that can enhance the bearing capacity and durability of concrete components by arranging prestressed channels in concrete beams, slabs, columns and other structures.

[0003] During the construction of prestressed ducts, rubber extraction tubes are used for forming, and the rubber extraction tubes are installed while the steel skeleton is tied. The rubber extraction tubes are positioned using prestressed duct positioning meshes, and the positioning meshes are firmly connected to the steel skeleton. When threading the rubber extraction tubes, one person in front pulls them through the corresponding positioning meshes, and someone in the back pushes them forward. However, this manual pipe threading method has low construction efficiency and is easy to damage the position and direction of the positioning meshes, thereby slowing down the progress of the entire project. Utility Model Content

[0004] In order to facilitate the traction installation of the rubber extraction tube, the present application provides a guiding device for a prestressed channel.

[0005] The present application provides a guiding device for a prestressed channel using the following technical solution:

[0006] A guiding device for a prestressed channel, comprising:

[0007] Traction head;

[0008] The fixing assembly comprises an insertion rod fixed on the traction head, a sleeve fixed on the traction head, a pressing piece fixed on the sleeve, and a threaded sleeve threadedly connected to the sleeve; a space for accommodating the rubber extraction tube is formed between the insertion rod and the sleeve, and the thickness of the pressing piece gradually increases in a direction away from the traction head;

[0009] The traction mechanism is used to drive the traction head to move, and includes a winch, a traction rope arranged on the winch, and a quick-install component connected to the traction head.

[0010] By adopting the above technical solution, the plug rod is plugged into the rubber extraction tube, so that the sleeve is set on the rubber extraction tube. By rotating the threaded sleeve, the threaded sleeve squeezes the pressing sheet, so that the pressing sheet is pressed tightly on the rubber extraction tube, thereby fixing the rubber extraction tube. The traction head and the traction rope are connected using a quick-release assembly, and then the traction rope is driven by the winch to move, thereby realizing the traction movement of the rubber extraction tube, greatly improving work efficiency and saving manpower.

[0011] Optionally, the quick-release assembly includes a connecting rod fixedly arranged on the traction head, a connecting sleeve fixedly arranged on the traction rope, a locking block slidably arranged on the connecting sleeve, a pushing block slidably arranged on the connecting sleeve, and an elastic member for controlling the locking block to be retracted into the connecting sleeve; the pushing block is against the locking block, and the contact surface between the locking block and the pushing block is an arc-shaped surface. A locking groove is provided on the connecting rod, and when the connecting rod is inserted into the connecting sleeve, the pushing block pushes the locking block out and engages in the locking groove.

[0012] By adopting the above technical solution, when the connecting rod is inserted into the connecting sleeve, the pushing block can push the locking block out by moving the pushing block, so that the locking block is inserted into the locking groove, thereby realizing rapid fixation of the connecting rod.

[0013] Optionally, the elastic member is a spring that is always in a stretched state, and two ends of the spring are respectively fixed to the locking block and the connecting sleeve.

[0014] By adopting the above technical solution, the locking block can be retracted into the connecting sleeve under the action of the spring, so that the locking block can be reset, thereby facilitating the connection rod to be inserted into the connecting sleeve.

[0015] Optionally, the quick-release assembly further comprises a first magnet fixed on the connecting sleeve and a second magnet fixed on the pushing block, and when the first magnet and the second magnet are attracted to each other, the pushing block pushes the locking block out of the connecting sleeve.

[0016] By adopting the above technical solution, when the locking block extends from the connecting sleeve and is inserted into the locking groove, the first magnet and the second magnet are attracted to each other, which can fix the position of the push block and ensure the stability of the connection between the connecting rod and the connecting sleeve.

[0017] Optionally, a first positioning groove is formed on the push block, and when the locking block is engaged in the first positioning groove, the locking block extends out from the connecting sleeve.

[0018] By adopting the above technical solution, the locking block is clamped in the first positioning groove, which can play a certain reinforcement role on the push block, so that the push block is not easy to move.

[0019] Optionally, a second positioning groove is provided on the pushing block, and when the locking block is clamped in the second positioning groove, the locking block is received in the connecting sleeve.

[0020] By adopting the above technical solution, when the locking block is clamped in the second positioning groove, the locking block is received in the connecting sleeve, which facilitates the connection rod to be inserted into the connecting sleeve.

[0021] Optionally, a first protrusion is fixedly provided on the insertion rod, and a second protrusion is fixedly provided on the pressing sheet, and the first protrusion and the second protrusion are staggered.

[0022] By adopting the above technical solution, the first protrusion and the second protrusion can increase the contact area with the rubber extraction tube, improve the fixing effect of the rubber extraction tube, and make the rubber extraction tube not easy to separate from the traction head.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Insert the rod into the rubber extraction tube so that the sleeve is set on the rubber extraction tube. By rotating the threaded sleeve, the threaded sleeve squeezes the pressing sheet, so that the pressing sheet is pressed tightly on the rubber extraction tube, thereby fixing the rubber extraction tube. Use the quick-release assembly to connect the traction head and the traction rope, and then the winch drives the traction rope to move, thereby realizing the traction movement of the rubber extraction tube, greatly improving work efficiency and saving manpower.

[0025] 2. When the connecting rod is inserted into the connecting sleeve, the pushing block can push the locking block out by pushing the pushing block to move, so that the locking block is inserted into the locking groove, and the first magnet and the second magnet are attracted to each other, thereby realizing the rapid fixation of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a cross-sectional view of the traction head of an embodiment of the present application.

[0028] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A.

[0029] Figure 4 It is a cross-sectional view from another angle of the traction head of the embodiment of the present application.

[0030] Figure numerals: 1, traction head; 21, insertion rod; 22, sleeve; 23, pressing plate; 24, threaded sleeve; 31, winch; 32, traction rope; 41, connecting rod; 411, locking groove; 42, connecting sleeve; 43, locking block; 44, push block; 441, first positioning groove; 442, second positioning groove; 45, spring; 46, first magnet; 47, second magnet; 51, first protrusion; 52, second protrusion. DETAILED DESCRIPTION

[0031] The technical solution in this application is further described in detail below in conjunction with the accompanying drawings.

[0032] The present application embodiment discloses a guiding device for a prestressed channel. Figure 1A guiding device for a prestressed channel includes a traction head 1, a fixing assembly arranged on the traction head 1 for fixing a rubber extraction tube, and a traction mechanism for pulling the traction head 1 to move.

[0033] Specifically, the traction head 1 is configured in a cone shape, which can facilitate the traction head 1 to pass through between the steel frame and the positioning mesh.

[0034] For details, please refer to Figure 1 and Figure 2 The fixing assembly includes an insert rod 21 fixedly arranged on the traction head 1, a casing 22 fixedly arranged on the traction head 1, a pressing piece 23 fixedly arranged on the casing 22, and a threaded sleeve 24 threadedly connected to the casing 22. Among them, the insert rod 21 is inserted into the rubber extraction tube, and the casing 22 is sleeved on the outside of the rubber extraction tube, so that a space for accommodating the rubber extraction tube is formed between the insert rod 21 and the casing 22. One end of the pressing piece 23 is fixed to the casing 22, and the other end of the pressing piece 23 is a free end. The pressing piece 23 is against the outer surface of the rubber extraction tube, and the thickness of the pressing piece 23 gradually increases in the direction away from the traction head 1. By moving the threaded sleeve 24 in the direction away from the traction head 1, the pressing piece 23 can be squeezed, so that the pressing piece 23 is further pressed down to fix the rubber extraction tube, thereby enhancing the fixing effect of the rubber extraction tube.

[0035] For details, please refer to Figure 1 The traction mechanism is used to drive the traction head 1 to move, and the traction mechanism includes a winch 31, a traction rope 32 arranged on the winch 31, and a quick-install assembly for connecting with the traction head 1. The quick-install assembly makes the connection between the traction head 1 and the traction rope 32 faster and more convenient, thereby improving the construction efficiency. By connecting the traction head 1 and the traction rope 32, and then driving the traction head 1 to move by the winch 31, the rubber extraction tube can be guided and moved.

[0036] Please refer to Figure 2 and Figure 3The quick-install assembly includes a connecting rod 41 fixedly arranged on the traction head 1, a connecting sleeve 42 fixedly arranged at the free end of the traction rope 32, a locking block 43 slidably arranged on the connecting sleeve 42, a pushing block 44 slidably arranged on the connecting sleeve 42, and an elastic member for controlling the locking block 43 to be retracted into the connecting sleeve 42. The locking block 43 and the moving track and the moving track of the pushing block 44 are perpendicular to each other, the pushing block 44 abuts against the locking block 43, and the contact surface between the locking block 43 and the pushing block 44 is an arc surface, so that the pushing block 44 pushes the locking block 43 to move. By moving the pushing block 44, the locking block 43 can be controlled to extend out of the connecting sleeve 42. An annular locking groove 411 is provided on the circumferential surface of the connecting rod 41. When the connecting rod 41 is inserted into the connecting sleeve 42, the locking block 43 can be pushed out of the connecting sleeve 42 by moving the pushing block 44, so that the locking block 43 is clamped in the locking groove 411, thereby fixing the connecting rod 41, thereby realizing the quick connection of the traction head 1 and the traction rope 32.

[0037] Please refer to Figure 4 The elastic member is a spring 45, one end of which is fixedly connected to the locking block 43, and the other end of which is fixedly connected to the connecting sleeve 42. The spring 45 is always in a stretched state, so that a pulling force can be applied to the locking block 43, so that the locking block 43 is retracted into the connecting sleeve 42, and the connecting rod 41 can be normally inserted and withdrawn from the connecting sleeve 42.

[0038] For further information, please refer to Figure 3 In order to fix the position of the push block 44, the quick-install assembly further includes a first magnet 46 fixed on the connecting sleeve 42 and a second magnet 47 fixed on the push block 44. When the push block 44 is moved so that the locking block 43 extends out of the connecting sleeve 42 and is inserted into the locking groove 411, the first magnet 46 and the second magnet 47 can be attracted to each other, thereby fixing the push block 44 and ensuring the stability of the position of the push block 44.

[0039] For further information, please refer to Figure 3 The push block 44 is provided with a first positioning groove 441 and a second positioning groove 442 that match the locking block 43. When the locking block 43 is engaged in the first positioning groove 441, the locking block 43 is in a state of extending from the connecting sleeve 42, so that the locking block 43 plays a certain reinforcement role on the push block 44. When the locking block 43 is engaged in the second positioning groove 442, the locking block 43 is in a state of being retracted into the connecting sleeve 42, and the locking block 43 plays a certain positioning role on the push block 44, preventing the push block 44 from moving at will, thereby facilitating the insertion of the connecting rod 41 into the connecting sleeve 42.

[0040] Please refer to Figure 2In order to improve the fixing effect of the rubber extraction tube, a plurality of first protrusions 51 are fixedly arranged on the insertion rod 21, and a plurality of second protrusions 52 are fixedly arranged on the pressing sheet 23. The first protrusions 51 and the second protrusions 52 are arranged alternately, which can further enhance the fixing effect of the rubber extraction tube and prevent it from sliding or falling off during the traction process. The arrangement of the first protrusions 51 and the second protrusions 52 increases the contact area and friction force with the rubber extraction tube, and improves the stability of the fixation.

[0041] The implementation principle of the embodiment of the present application is as follows: insert the insertion rod 21 into the rubber extraction tube, rotate the threaded sleeve 24, so that the pressing sheet 23 presses the rubber extraction tube. Move the push block 44 to separate the first magnet 46 and the second magnet 47, and insert the connecting rod 41 into the connecting sleeve 42. Then move the push block 44 again to make the first magnet 46 and the second magnet 47 attract each other. Start the winch 31 to drive the traction head 1 to move, so as to traction and guide the rubber extraction tube.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A guiding device for a prestressed channel, characterized in that: include: Traction head (1); A fixing assembly, comprising an insertion rod (21) fixed to a traction head (1), a casing (22) fixed to the traction head (1), a pressing sheet (23) fixed to the casing (22), and a threaded sleeve (24) threadedly connected to the casing (22); a space for accommodating a rubber extraction tube is formed between the insertion rod (21) and the casing (22), and the thickness of the pressing sheet (23) gradually increases in a direction away from the traction head (1); The traction mechanism is used to drive the traction head (1) to move, and comprises a hoist (31), a traction rope (32) arranged on the hoist (31), and a quick-install component used to be connected to the traction head (1).

2. A guiding device for a prestressed channel according to claim 1, characterized in that: The quick-install assembly comprises a connecting rod (41) fixedly arranged on the traction head (1), a connecting sleeve (42) fixedly arranged on the traction rope (32), a locking block (43) slidably arranged on the connecting sleeve (42), a pushing block (44) slidably arranged on the connecting sleeve (42), and an elastic member for controlling the locking block (43) to be retracted into the connecting sleeve (42); the pushing block (44) abuts against the locking block (43), and the contact surface between the locking block (43) and the pushing block (44) is an arc surface; a locking groove (411) is provided on the connecting rod (41), and when the connecting rod (41) is inserted into the connecting sleeve (42), the pushing block (44) pushes the locking block (43) out and is clamped in the locking groove (411).

3. A guiding device for a prestressed channel according to claim 2, characterized in that: The elastic member is a spring (45) that is always in a stretched state, and two ends of the spring (45) are respectively fixed to a locking block (43) and a connecting sleeve (42).

4. A guiding device for a prestressed channel according to claim 2, characterized in that: The quick-install assembly further comprises a first magnet (46) fixed on the connecting sleeve (42) and a second magnet (47) fixed on the pushing block (44); when the first magnet (46) and the second magnet (47) are attracted to each other, the pushing block (44) pushes the locking block (43) out of the connecting sleeve (42).

5. A guiding device for a prestressed channel according to claim 2, characterized in that: The push block (44) is provided with a first positioning groove (441), and when the locking block (43) is engaged in the first positioning groove (441), the locking block (43) extends out of the connecting sleeve (42).

6. A guiding device for a prestressed channel according to claim 2, characterized in that: The push block (44) is provided with a second positioning groove (442), and when the locking block (43) is engaged in the second positioning groove (442), the locking block (43) is received in the connecting sleeve (42).

7. A guiding device for a prestressed channel according to claim 1, characterized in that: A first protrusion (51) is fixedly provided on the insertion rod (21), and a second protrusion (52) is fixedly provided on the pressing sheet (23); the first protrusion (51) and the second protrusion (52) are staggered.

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