Joint connecting device of prestressed concrete square pile

Abstract

The utility model discloses a connector connecting device of a prestressed concrete square pile, which comprises a splice plate, two sets of devices are respectively fixed at the bottom of an upper pile body and the top of a lower pile body in cooperation with pre-embedded anchor rods, and after the upper pile body is hoisted to move to the position right above the lower pile body, special mucilage glue is smeared on the surface of the splice plate located at the top of the lower pile body. Then, the upper pile body is moved downwards to the position where the two splice plates make full contact, the two splice plates making contact with each other are welded, then, counterclockwise rotation is conducted, a screw of a device placed on the top of the lower pile body is loosened, a sliding piece is moved upwards to the height where a welding plate makes contact with a side piece of a device placed at the bottom of the upper pile body in cooperation with a U-shaped limiting hole, and welding is conducted. The height of the welding plate is fixed by rotating the screw clockwise, then the welding plate and the side pieces are welded, at the moment, the upper and lower sets of devices are fixedly connected through welding of the welding plate and the side pieces, protection is conducted on the outer walls of the upper pile body and the lower pile body, and the stability of the connecting position between the upper pile body and the lower pile body is effectively guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of prestressed concrete square piles, and in particular relates to a joint connection device for prestressed concrete square piles. Background Art

[0002] Prestressed concrete square piles are an engineering material commonly used in building foundations. They have high bearing capacity and good durability. During use, due to geological conditions, construction requirements or pile length limitations, it is usually necessary to connect multiple sections of prestressed concrete square piles to form a complete pile. The joint connection of the pile is a key link to ensure the overall performance of the pile and transfer load.

[0003] After the existing joint connection devices of some prestressed concrete square piles are spliced, they need to be welded between the devices to fix the upper pile and the lower pile. The force-bearing components after welding are generally inside the pile body, and the outer walls of the upper pile and the lower pile lack a supporting structure, resulting in poor stability after the device is connected. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a joint connection device for prestressed concrete square piles to solve the problem that the existing joint connection devices for some prestressed concrete square piles proposed in the above background technology need to be welded between the devices after splicing to fix the upper pile and the lower pile, and the force-bearing components after welding are generally inside the pile body, and the outer walls of the upper pile and the lower pile lack a supporting structure, resulting in poor stability after the device is connected.

[0005] The technical solution adopted to solve the above technical problems is: a joint connection device for prestressed concrete square piles, including a splicing plate, a pre-embedded anchor rod is fixedly connected to the inner side of the splicing plate, and a number of the pre-embedded anchor rods are symmetrically arranged; a side piece is fixedly connected to one side of the splicing plate, and a number of the side pieces are symmetrically arranged; the inner sides of the side pieces are threadedly connected to screw rods, and a number of the screw rods are symmetrically arranged; the outer sides of the screw rods are movably connected to sliding plates through limiting holes, and the limiting holes are U-shaped structures; the tops of the sliding plates are fixedly connected to welding plates.

[0006] Preferably, the bottom of each side panel is fixedly connected with a reinforcing rib, and one side of each side panel is fixedly connected with a splicing plate.

[0007] Preferably, a plurality of screw holes are symmetrically arranged on the inner side of the reinforcing ribs, and the tops of the reinforcing ribs are fixedly connected with side panels.

[0008] Preferably, a gasket is movably connected to the outer side of one end of the screw rod, a side piece is threadedly connected to the outer side of the screw rod, and a splicing plate is fixedly connected to one side of the side piece.

[0009] Preferably, the other sides of the side panels are fixedly connected to limiting blocks, a plurality of limiting blocks are symmetrically arranged, and sliding plates are movably connected between adjacent limiting blocks.

[0010] Preferably, a handle is fixedly connected to one side of the bottom of the welding plate, and a slide is fixedly connected to the other side of the bottom of the welding plate.

[0011] Preferably, a scale is fixedly connected to the inner side of the slide, a screw is movably connected to the inner side of the slide via a limiting hole, and a side piece is threadedly connected to the outer side of the screw.

[0012] Preferably, the outer surfaces of the embedded anchor rods are provided with an electroplated anti-oxidation coating.

[0013] Compared with the prior art, the utility model provides a joint connection device for prestressed concrete square piles, which has the following beneficial effects:

[0014] 1. The utility model sets a welding plate, the bottom of the welding plate is fixedly connected with a slide, the inner side of the slide is movably connected with a screw through a limit hole, the outer side of the screw is threadedly connected with a side plate, one side of the side plate is fixedly connected with a pre-buried anchor rod, and two sets of devices are respectively fixed to the bottom of the upper pile body and the top of the lower pile body with the pre-buried anchor rod. After the upper pile body is hoisted and moved to the top of the lower pile body, a special adhesive is applied to the surface of the splicing plate at the top of the lower pile body, and then the upper pile body is moved down to the position where the two splicing plates are fully in contact, and the two splicing plates are connected. The splicing plates after contact are welded, and then the screw of the device placed on the top of the lower pile body is rotated counterclockwise and loosened, and the sliding plate is moved up to the height where the welding plate contacts the side plate of the device placed at the bottom of the upper pile body in conjunction with the U-shaped limiting hole, and the screw is rotated clockwise to fix the height of the welding plate, and then the welding plate and the side plate are welded. At this time, the upper and lower sets of devices are fixedly connected by welding the welding plate and the side plate, and the outer walls of the upper and lower pile bodies are protected, which effectively ensures the stability of the connection between the upper and lower pile bodies;

[0015] 2. The utility model sets a ruler, the outer side of the ruler is fixedly connected with a slide, and the top of the slide is fixedly connected with a welding plate, which can effectively mark the height of the slide and the welding plate;

[0016] 3. The utility model is capable of effectively ensuring the stability of the side panels by arranging reinforcing ribs, the tops of the reinforcing ribs are fixedly connected with side panels, and one side of the side panels is fixedly connected with a splicing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an axonometric structural schematic diagram of a joint connection device for prestressed concrete square piles proposed by the utility model;

[0018] Figure 2 for Figure 1A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 3 This is a schematic diagram of the axonometric structure of a welding plate of a joint connection device for prestressed concrete square piles proposed by the utility model;

[0020] Figure 4 This is a front view structural schematic diagram of a joint connection device for prestressed concrete square piles proposed by the utility model;

[0021] Figure 5 This is a top view structural schematic diagram of a joint connection device for prestressed concrete square piles proposed by the utility model;

[0022] Figure 6 This is a bottom structural schematic diagram of a joint connection device for prestressed concrete square piles proposed by the utility model;

[0023] In the figure: splicing plate 1, embedded anchor rod 2, side plate 3, screw rod 4, limit hole 5, slide plate 6, welding plate 7, handle 8, reinforcing rib 9, screw hole 10, ruler 11, gasket 12, limit block 13. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

[0025] Example 1

[0026] See also Figure 1-6The utility model provides a technical solution: a joint connection device for prestressed concrete square piles, including a splicing plate 1, characterized in that: a pre-buried anchor rod 2 is fixedly connected to the inner side of the splicing plate 1, and a plurality of pre-buried anchor rods 2 are symmetrically arranged; a side piece 3 is fixedly connected to one side of the splicing plate 1, and a plurality of side pieces 3 are symmetrically arranged; a screw rod 4 is threadedly connected to the inner side of the side piece 3, and a plurality of screw rods 4 are symmetrically arranged; a slide plate 6 is movably connected to the outer side of the screw rod 4 through a limiting hole 5, and the limiting hole 5 is a U-shaped structure; a welding plate 7 is fixedly connected to the top of the slide plate 6; two sets of devices are respectively fixed to the bottom of the upper pile body and the top of the lower pile body with the pre-buried anchor rod 2; after the upper pile body is hoisted and moved to the top of the lower pile body, Apply special adhesive on the surface of the splicing plate 1 located at the top of the lower pile body, and then move the upper pile body down to the position where the two splicing plates 1 are fully in contact, weld the two splicing plates 1 after contact, and then rotate counterclockwise and loosen the screw 4 of the device placed on the top of the lower pile body, cooperate with the U-shaped limiting hole 5 to move the slide 6 up to the height where the welding plate 7 contacts the side piece 3 of the device placed at the bottom of the upper pile body, rotate the screw 4 clockwise to fix the height of the welding plate 7, and then weld the welding plate 7 to the side piece 3. At this time, the upper and lower groups of devices are fixedly connected by welding the welding plate 7 to the side piece 3, and the outer walls of the upper and lower pile bodies are protected, which effectively ensures the stability of the connection between the upper and lower pile bodies.

[0027] In the utility model, preferably, the bottom of the side panel 3 is fixedly connected with a reinforcing rib 9 , and one side of the side panel 3 is fixedly connected with a splicing plate 1 , which can effectively ensure the stability of the side panel 3 .

[0028] In the utility model, preferably, a plurality of screw holes 10 are symmetrically arranged on the inner side of the reinforcing rib 9, and the top of the reinforcing rib 9 is fixedly connected with the side piece 3, which is connected to the pile body by passing the expansion screw through the screw hole 9, which can effectively ensure the stability of the device.

[0029] In the utility model, preferably, a gasket 12 is movably connected to the outer side of one end of the screw rod 4, a side piece 3 is threadedly connected to the outer side of the screw rod 4, and a splicing plate 1 is fixedly connected to one side of the side piece 3, which can effectively reduce the stability of the screw rod 4 during long-term use.

[0030] In the utility model, preferably, the other side of the side panel 3 is fixedly connected with a limiting block 13, and a plurality of limiting blocks 13 are symmetrically arranged. The adjacent limiting blocks 13 are movably connected with a slide 6, which can effectively reduce the swing amplitude of the slide 6 during use.

[0031] In the utility model, preferably, a handle 8 is fixedly connected to one side of the bottom of the welding plate 7, and a slide 6 is fixedly connected to the other side of the bottom of the welding plate 7, which effectively facilitates personnel to move the position of the welding plate 7 after holding it.

[0032] In the utility model, preferably, the inner side of the slide 6 is fixedly connected with a scale 11, the inner side of the slide 6 is movably connected with a screw 4 through a limiting hole 5, and the outer side of the screw 4 is threadedly connected with a side plate 3, which effectively marks the moving height of the slide 6 and then the welding plate 7.

[0033] In the present invention, preferably, the outer surface of the embedded anchor rod 2 is provided with an electroplated anti-oxidation coating, which effectively reduces the risk of decreased material strength due to oxidation and corrosion.

[0034] The working principle and use process of the utility model are as follows: when in use, the two groups of devices are respectively fixed to the bottom of the upper pile body and the top of the lower pile body with the embedded anchor rods 2. After the upper pile body is hoisted and moved to just above the lower pile body, special adhesive is applied to the surface of the splicing plate 1 located on the top of the lower pile body, and then the upper pile body is moved down to the position where the two splicing plates 1 are fully in contact with each other, the two splicing plates 1 after contact are welded, and then the screw 4 of the device placed on the top of the lower pile body is rotated counterclockwise and loosened, and the slide 6 is moved up to the height where the welding plate 7 contacts the side plate 3 of the device placed at the bottom of the upper pile body with the U-shaped limiting hole 5, the screw 4 is rotated clockwise to fix the height of the welding plate 7, and then the welding plate 7 is welded to the side plate 3. At this time, the upper and lower groups of devices are fixedly connected by welding the welding plate 7 to the side plate 3, and the outer walls of the upper and lower pile bodies are protected, effectively ensuring the stability of the connection between the upper and lower pile bodies.

Claims

1. A joint connection device for prestressed concrete square piles, comprising a splicing plate (1), characterized in that: The inner side of the splicing plate (1) is fixedly connected with an embedded anchor rod (2), and a plurality of the embedded anchor rods (2) are symmetrically arranged. One side of the splicing plate (1) is fixedly connected with a side plate (3), and a plurality of the side plates (3) are symmetrically arranged. The inner side of each side plate (3) is threadedly connected with a screw rod (4), and a plurality of the screw rods (4) are symmetrically arranged. The outer side of each screw rod (4) is movably connected with a slide plate (6) through a limiting hole (5), and the limiting hole (5) is a U-shaped structure. The top of each slide plate (6) is fixedly connected with a welding plate (7).

2. The joint connection device for prestressed concrete square piles according to claim 1, characterized in that: The bottom of each side panel (3) is fixedly connected with a reinforcing rib (9), and one side of each side panel (3) is fixedly connected with a splicing plate (1).

3. The joint connection device for prestressed concrete square piles according to claim 2, characterized in that: A plurality of screw holes (10) are symmetrically arranged on the inner side of the reinforcing rib (9), and the top of each reinforcing rib (9) is fixedly connected to a side plate (3).

4. The joint connection device for prestressed concrete square piles according to claim 1, characterized in that: The outer side of one end of the screw rod (4) is movably connected to a gasket (12), the outer side of the screw rod (4) is threadedly connected to a side plate (3), and one side of the side plate (3) is fixedly connected to a splicing plate (1).

5. The joint connection device for prestressed concrete square piles according to claim 1, characterized in that: The other side of the side piece (3) is fixedly connected to a limiting block (13), a plurality of limiting blocks (13) are symmetrically arranged, and adjacent limiting blocks (13) are movably connected to a sliding plate (6).

6. The joint connection device for prestressed concrete square piles according to claim 1, characterized in that: A handle (8) is fixedly connected to one side of the bottom of the welding plate (7), and a slide (6) is fixedly connected to the other side of the bottom of the welding plate (7).

7. The joint connection device for prestressed concrete square piles according to claim 1, characterized in that: The inner side of the slide plate (6) is fixedly connected to a scale (11), the inner side of the slide plate (6) is movably connected to a screw rod (4) through a limiting hole (5), and the outer side of the screw rod (4) is threadedly connected to a side plate (3).

8. The joint connection device for prestressed concrete square piles according to claim 1, characterized in that: The outer surfaces of the embedded anchor rods (2) are all provided with an electroplated anti-oxidation coating.

Images