Anti-seismic connector for prestressed concrete pipe pile

Abstract

The utility model relates to the technical field of building construction, in particular to an anti-seismic connector for a prestressed concrete pipe pile, which comprises a box body and a top plate, the inner surface of the box body is in sliding connection with the surface of the top plate, an air pressure damping device is arranged in the box body, the surface of the box body abuts against one end of a square pipe, and a fixing device is arranged in the square pipe. According to the anti-seismic connector for the prestressed concrete pipe pile, through cooperation of the air pressure damping device and the box body, the sliding blocks on the two sides can drive the sliding rods and the pistons on the two sides to move synchronously, so that the pistons can compress air in the sleeves, vibration can be buffered and partially offset, and the anti-seismic effect is achieved. And meanwhile, when the top plate vibrates, the slide way rods can be driven to synchronously move, the slide way rods can compress the first springs, the auxiliary damping effect is achieved, shock resistance is achieved in two modes, and the damping effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an anti-seismic connector for prestressed concrete pipe piles. Background Art

[0002] Prestressed concrete pipe piles have the characteristics of high vertical bearing capacity of single piles, good pile body quality, strong adaptability to engineering geological conditions, and fast construction speed. Since the 1970s, they have been widely used in my country's construction, highway, railway, port and other projects.

[0003] For example, the seismic connector for prestressed concrete pipe piles with the authorization announcement number "CN217580321U" can provide a certain degree of shock absorption, so that the device can be stably and firmly installed with the prestressed concrete pipe pile, so that the device can be embedded in the soil or where needed when in use. The device setting can prevent the device embedded in the soil from being easily pulled out again. However, when the device is fixed to the ground, it is only fixed to the ground through a structure similar to a barb, but the barb structure alone cannot ensure that the device is stably fixed to the ground, resulting in poor stability of the device. At the same time, the device only uses springs to dampen the concrete pipe piles, which is a single method and cannot guarantee the damping effect on the concrete pipe piles. Utility Model Content

[0004] The utility model aims to solve the problems of poor stability and poor shock absorption effect of the device, and proposes an anti-seismic connector for prestressed concrete pipe piles.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A seismic connector for prestressed concrete pipe piles is designed, comprising a box body and a top plate, the inner surface of the box body is slidably connected to the surface of the top plate, a gas pressure shock absorbing device is arranged inside the box body, the surface of the box body is tightly abutted against one end of a square tube, a fixing device is arranged inside the square tube, bent plates are symmetrically fixedly connected to the surface of the box body, the surfaces of the bent plates on both sides are fitted with the surface of the square tube, the bent plates on both sides are slidably connected to the surfaces of bolts through through holes opened on the surfaces, the bolts on both sides are threadedly connected to the threaded holes opened on the surface of the square tube, and a pointed block is fixedly connected to the surface of the square tube.

[0007] Preferably, the pneumatic shock absorbing device includes a transmission rod and a slider, the sliders on both sides are slidably engaged with slideways opened on the inner surface of the box body, the slider surfaces on both sides are movably connected to one end of the transmission rod through a pin shaft, one end of the transmission rod on both sides is movably connected to the surface of the connecting block through a pin shaft, the slider surfaces on both sides are fixedly connected to a slide rod, the slide rod surface is slidably connected to the inner surface of the sleeve, one end of the slide rod is fixedly connected to a piston, the piston surface is slidably connected to the inner surface of the sleeve, and the sleeve is fixedly connected to the inner surface of the box body.

[0008] Preferably, the connection blocks on both sides are fixedly connected to the surface of the top plate, and the surface of the top plate is fixedly connected to a slide rod.

[0009] Preferably, the inner surface of the slide rod is slidably connected to the surface of the straight rod, one end of the straight rod is fixedly connected to the inner surface of the box body, and one end of the straight rod and the inner surface of the slide rod are respectively fixedly connected to two ends of the first spring.

[0010] Preferably, the fixing device includes a groove block and a cross bar, the groove blocks on both sides are slidably engaged with the slideways opened on the surface of the square tube, the groove blocks on both sides are sleeved with the surface of the cross bar through the slideways opened on the surface, one end of the cross bar on both sides is fixedly connected to the surface of the vertical plate, the vertical plate is fixedly connected to the inner surface of the square tube, one end of the cross bar and the inner surface of the groove block are respectively fixedly connected to the two ends of the second spring, the surfaces of the groove blocks on both sides are fixedly connected with transmission blocks, and the surfaces of the transmission blocks on both sides are in contact with the cam surface.

[0011] Preferably, the cam surface is fixedly connected to one end of the rotating rod, one end of the rotating rod passes through the square tube surface and is fixedly connected to the hexagonal block surface, and the hexagonal block surface is slidably connected to a groove provided in the square tube surface.

[0012] Preferably, the surface of the rotating rod is rotatably connected to the support plate via a bearing, and the support plate is fixedly connected to the inner surface of the square tube.

[0013] The utility model provides an anti-seismic connector for prestressed concrete pipe piles, which has the beneficial effects of: through the cooperation of the fixing device and the square tube, the operator inserts the square tube into the ground through the pointed block, and at the same time the operator rotates the hexagonal block by turning the hexagonal wrench, so that the hexagonal block can drive the rotating rod to rotate synchronously, so that the rotating rod can drive the cam to rotate synchronously, so that the cam can push the transmission blocks on both sides to move synchronously, so that the transmission blocks on both sides can drive the groove blocks on both sides to move synchronously, so that the groove blocks on both sides can be expanded synchronously, so that the groove blocks on both sides can extend out of the square tube, so that the groove blocks on both sides can be pressed against the deep ground, so that the square tube can be more stable, the operator presses the box body against the surface of the square tube, so that the through holes on the surfaces of the bent plates on both sides are aligned with the threaded holes on the surface of the square tube, the bent plates can be fixed to the surface of the square tube by the bolts on both sides, and the stability of the device is improved by inserting the square tube into the deep ground and then fixing it by the groove blocks on both sides.

[0014] The concrete pipe piles are fixed to the surface of the top plate through the cooperation of the pneumatic shock absorbing device and the box body. When the concrete pipe piles are vibrated, the vibration can be transmitted to the surface of the top plate, and the top plate can transmit the vibration to the surfaces of the transmission rods on both sides through the connecting blocks on both sides, so that the transmission rods on both sides can transmit the vibration to the surfaces of the sliders on both sides, so that the sliders on both sides can drive the slide rods and pistons on both sides to move synchronously, so that the piston can compress the air inside the sleeve, so that the vibration can be partially buffered and offset. At the same time, when the top plate vibrates, it can drive the slide rod to move synchronously, so that the slide rod can compress the first spring, which plays an auxiliary shock absorbing role. Earthquake resistance is carried out in two ways, thereby improving the shock absorbing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 A front cross-sectional view of

[0017] Figure 3 for Figure 1 A partial front cross-sectional view of

[0018] Figure 4 It is a front cross-sectional view of the box;

[0019] Figure 5 It is a top cross-sectional view of a square tube;

[0020] Figure 6 It is a top view of the hexagonal block and the square tube;

[0021] Figure 7 for Figure 2 Schematic diagram of part A.

[0022] In the figure: 1, box body, 2, pneumatic shock absorbing device, 201, transmission rod, 202, slider, 203, sleeve, 204, slide rod, 205, piston, 206, connecting block, 3, top plate, 4, slide rod, 5, straight rod, 6, hexagonal block, 7, bent plate, 8, bolt, 9, fixing device, 901, cam, 902, groove block, 903, second spring, 904, cross bar, 905, vertical plate, 906, transmission block, 10, support plate, 11, rotating rod, 12, pointed block, 13, square tube, 14, first spring. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] See attached Figure 1-7 : In the present embodiment, a seismic connector for prestressed concrete pipe piles comprises a box body 1 and a top plate 3, the inner surface of the box body 1 is slidably connected to the surface of the top plate 3, a gas pressure shock absorbing device 2 is arranged inside the box body 1, the surface of the box body 1 is tightly abutted against one end of a square tube 13, a fixing device 9 is arranged inside the square tube 13, a bent plate 7 is symmetrically fixedly connected to the surface of the box body 1, the box body 1 and the square tube 13 can be fixedly connected by the bent plates 7 and bolts 8 on both sides, the surfaces of the bent plates 7 on both sides are fitted with the surfaces of the square tube 13, the bent plates 7 on both sides are slidably connected to the surfaces of the bolts 8 through the through holes opened on the surfaces, the bolts 8 on both sides are threadedly connected to the threaded holes opened on the surface of the square tube 13, a pointed block 12 is fixedly connected to the surface of the square tube 13, and the pointed block 12 can be conveniently inserted into the ground;

[0025] The connecting blocks 206 on both sides are fixedly connected to the surface of the top plate 3, and the surface of the top plate 3 is fixedly connected with a slide rod 4. The inner surface of the slide rod 4 is slidably connected to the surface of the straight rod 5. The straight rod 5 can fix the motion track of the slide rod 4. One end of the straight rod 5 is fixedly connected to the inner surface of the box body 1. One end of the straight rod 5 and the inner surface of the slide rod 4 are respectively fixedly connected to the two ends of the first spring 14. The elastic coefficient of the first spring 14 can meet the working needs according to actual needs. The first spring 14 can support the slide rod 4. The surface of the cam 901 is fixedly connected to one end of the rotating rod 11 The rotating rod 11 can drive the cam 901 to rotate synchronously. The two ends of the cam 901 are flat. One end of the rotating rod 11 passes through the surface of the square tube 13 and is fixedly connected to the surface of the hexagonal block 6. The hexagonal block 6 is circular and has a hexagonal groove on the surface, which is convenient for the operator to rotate with a wrench. The surface of the hexagonal block 6 is slidably connected to the groove on the surface of the square tube 13. The surface of the rotating rod 11 is rotatably connected to the support plate 10 through a bearing. The support plate 10 can support the rotating rod 11 to rotate, and the support plate 10 is fixedly connected to the inner surface of the square tube 13.

[0026] The pneumatic shock absorbing device 2 includes a transmission rod 201 and a slider 202. The sliders 202 on both sides are slidably engaged with the slideways provided on the inner surface of the box body 1 to fix the motion tracks of the sliders 202 on both sides. The surfaces of the sliders 202 on both sides are movably connected to one end of the transmission rod 201 through a pin shaft. When the transmission rods 201 on both sides are vibrated, the vibration can be transmitted to the surfaces of the sliders 202 on both sides. One end of the transmission rods 201 on both sides is movably connected to the surface of the connecting block 206 through a pin shaft. The surfaces of the sliders 202 on both sides are fixedly connected with slide bars 204. The sliders 202 on both sides can drive the slide bars 204 on both sides to move synchronously. The surfaces of the slide bars 204 are slidably connected to the inner surface of the sleeve 203. One end of the slide bar 204 is fixedly connected to a piston 205. The piston 205 can squeeze the air inside the sleeve 203. The surface of the piston 205 is slidably connected to the inner surface of the sleeve 203, and the sleeve 203 is fixedly connected to the inner surface of the box body 1.

[0027] The fixing device 9 includes a groove block 902 and a cross bar 904. The groove blocks 902 on both sides are slidably engaged with the slideways opened on the surface of the square tube 13 to fix the movement tracks of the groove blocks 902 on both sides. The groove blocks 902 on both sides are sleeved with the surface of the cross bar 904 through the slideways opened on the surface. The cross bars 904 on both sides can further fix the movement tracks of the groove blocks 902 on both sides. One end of the cross bars 904 on both sides is fixedly connected to the surface of the vertical plate 905, and the vertical plate 905 is fixedly connected to the inner surface of the square tube 13. One end of the cross bar 904 and the inner surface of the groove block 902 are respectively fixedly connected to the two ends of the second spring 903. The elastic coefficient of the second spring 903 can meet the working needs according to actual needs. The second spring 903 can pull the groove block 902 back to its original position. The surfaces of the groove blocks 902 on both sides are fixedly connected with transmission blocks 906. The transmission block 906 can move under the push of the cam 901, and the surfaces of the transmission blocks 906 on both sides are in contact with the surface of the cam 901.

[0028] Working principle:

[0029] When performing earthquake-resistant operations on concrete pipe piles:

[0030] Installation process:

[0031] The operator inserts the square tube 13 into the ground through the pointed block 12, and at the same time, the operator uses the hexagonal wrench to turn the hexagonal block 6 to rotate, so that the hexagonal block 6 can drive the rotating rod 11 to rotate synchronously, and the rotating rod 11 can drive the cam 901 to rotate synchronously, so that the cam 901 can push the transmission blocks 906 on both sides to move synchronously, so that the transmission blocks 906 on both sides can drive the groove blocks 902 on both sides to move synchronously, so that the groove blocks 902 on both sides can be unfolded synchronously, so that the groove blocks 902 on both sides can extend out of the square tube 13, so that the groove blocks 902 on both sides can be pressed against the deep underground, so that the square tube 13 can be more stable, and the operator presses the box body 1 against the surface of the square tube 13, so that the through holes on the surfaces of the bent plates 7 on both sides are aligned with the threaded holes on the surface of the square tube 13, and the bent plates 7 can be fixed to the surface of the square tube 13 by the bolts 8 on both sides.

[0032] Earthquake resistance process:

[0033] The concrete pipe piles are fixed to the surface of the top plate 3. When the concrete pipe piles are vibrated, the vibrations can be transmitted to the surface of the top plate 3. The top plate 3 can transmit the vibrations to the surfaces of the transmission rods 201 on both sides through the connecting blocks 206 on both sides, so that the transmission rods 201 on both sides can transmit the vibrations to the surfaces of the sliders 202 on both sides, so that the sliders 202 on both sides can drive the slide rods 204 and the pistons 205 on both sides to move synchronously, so that the pistons 205 can compress the air inside the sleeve 203, so that part of the vibrations can be buffered and offset. At the same time, when the top plate 3 vibrates, it can drive the slide rod 4 to move synchronously, so that the slide rod 4 can compress the first spring 14, thereby playing an auxiliary shock-absorbing role.

[0034] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A seismic connector for prestressed concrete pipe piles, comprising a box body (1) and a top plate (3), wherein the inner surface of the box body (1) is slidably connected to the surface of the top plate (3), characterized in that: A gas pressure shock absorbing device (2) is provided inside the box body (1), the surface of the box body (1) is tightly abutted against one end of a square tube (13), a fixing device (9) is provided inside the square tube (13), a bent plate (7) is symmetrically fixedly connected to the surface of the box body (1), the surfaces of the bent plates (7) on both sides are in contact with the surface of the square tube (13), the bent plates (7) on both sides are slidably connected to the surfaces of bolts (8) through through holes opened on the surfaces, the bolts (8) on both sides are threadedly connected to threaded holes opened on the surface of the square tube (13), and a pointed block (12) is fixedly connected to the surface of the square tube (13).

2. The seismic connector for prestressed concrete pipe piles according to claim 1, characterized in that: The pneumatic shock absorbing device (2) comprises a transmission rod (201) and a slider (202). The sliders (202) on both sides are slidably engaged with slideways provided on the inner surface of the box body (1). The surfaces of the sliders (202) on both sides are movably connected to one end of the transmission rod (201) via a pin shaft. One end of the transmission rod (201) on both sides is movably connected to the surface of a connecting block (206) via a pin shaft. The surfaces of the sliders (202) on both sides are fixedly connected to a slider (204). The surface of the slider (204) is slidably connected to the inner surface of a sleeve (203). One end of the slider (204) is fixedly connected to a piston (205). The surface of the piston (205) is slidably connected to the inner surface of the sleeve (203). The sleeve (203) is fixedly connected to the inner surface of the box body (1).

3. The seismic connector for prestressed concrete pipe piles according to claim 2, characterized in that: The connection blocks (206) on both sides are fixedly connected to the surface of the top plate (3), and the surface of the top plate (3) is fixedly connected to a slide rod (4).

4. The seismic connector for prestressed concrete pipe piles according to claim 3, characterized in that: The inner surface of the slide rod (4) is slidably connected to the surface of the straight rod (5), one end of the straight rod (5) is fixedly connected to the inner surface of the box body (1), and one end of the straight rod (5) and the inner surface of the slide rod (4) are respectively fixedly connected to the two ends of the first spring (14).

5. The seismic connector for prestressed concrete pipe piles according to claim 1, characterized in that: The fixing device (9) comprises a groove block (902) and a cross bar (904). The groove blocks (902) on both sides are slidably engaged with the slideways provided on the surface of the square tube (13). The groove blocks (902) on both sides are sleeved with the surface of the cross bar (904) through the slideways provided on the surface. One end of the cross bar (904) on both sides is fixedly connected to the surface of the vertical plate (905). The vertical plate (905) is fixedly connected to the inner surface of the square tube (13). One end of the cross bar (904) and the inner surface of the groove block (902) are respectively fixedly connected to the two ends of the second spring (903). The surfaces of the groove blocks (902) on both sides are fixedly connected with transmission blocks (906). The surfaces of the transmission blocks (906) on both sides are in contact with the surface of the cam (901).

6. The seismic-resistant connector for prestressed concrete pipe piles according to claim 5, characterized in that: The surface of the cam (901) is fixedly connected to one end of the rotating rod (11), one end of the rotating rod (11) passes through the surface of the square tube (13) and is fixedly connected to the surface of the hexagonal block (6), and the surface of the hexagonal block (6) is slidably connected to a groove provided on the surface of the square tube (13).

7. The seismic connector for prestressed concrete pipe piles according to claim 6, characterized in that: The surface of the rotating rod (11) is rotatably connected to the support plate (10) via a bearing, and the support plate (10) is fixedly connected to the inner surface of the square tube (13).

Images