Steel pipe fixing device of foundation pile

Abstract

The utility model provides a steel pipe fixing device of a foundation pile. The steel pipe fixing device of the foundation pile comprises a bottom plate, a fixed frame arranged on the bottom plate, two movable frames arranged in the fixed frame, and a first driving mechanism used for driving the two movable frames to move face to face or back to back in the Z direction. The second driving mechanism is used for driving the two clamping jaws arranged in the moving frame to move face to face or back to back in the X direction; one end of the clamping jaw is connected with the second driving mechanism, a clamping cavity used for clamping a steel pipe is formed at the other end of the clamping jaw, the two ends of the first driving mechanism are fixed to the bottom plate and the fixed frame respectively, and the movable frame is connected with the first driving mechanism. According to the utility model, the fixing stability of the steel pipe is greatly improved, and the impact force during pouring can be effectively resisted.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic foundation piles, in particular to a steel pipe fixing device for foundation piles. Background Art

[0002] Photovoltaic foundation piles are used to fix photovoltaic modules, which enable them to capture light energy and convert it into electrical energy. The existing photovoltaic foundation pile construction method is to drill holes on site using a spiral drill, a submersible drill, etc., insert a steel pipe into the hole, and then pour concrete inside the steel pipe and between the steel pipe and the hole. The steel pipe is generally inserted into the hole by hoisting with a steel wire rope, but the hoisting method is prone to shaking when the steel pipe is poured, which causes the steel pipe to tilt and not be in a vertical position, affecting the formation of the foundation pile.

[0003] In order to prevent the steel pipe from tilting, a fixing device is generally used. The existing fixing device is a ring with a diameter larger than the inner diameter of the hole. Multiple bolts are arranged on the circumference of the ring, and the multiple bolts are on the same radial plane. When in use, the ring is fixed on the ground and aligned with the hole, and then the steel pipe is hoisted through the ring and the hole, and the bolts on the ring are adjusted so that the ends of the bolts contact the surface of the steel pipe, thereby fixing the steel pipe in the middle position. This method has the following problems: (1) The height position of the steel pipe cannot be adjusted; (2) All bolts need to be tightened, which is a large workload; (3) The positioning is only set on one radial plane of the steel pipe. If the steel pipe is long, this single-layer positioning method has poor stability. Utility Model Content

[0004] The utility model aims to provide a steel pipe fixing device for foundation piles which can adjust and improve the stability of fixed steel pipes.

[0005] The technical solution of the utility model is: a steel pipe fixing device for foundation piles, comprising a bottom plate, a fixed frame arranged on the bottom plate, two movable frames arranged in the fixed frame, a first driving mechanism for driving the two movable frames to move toward or away from each other in the Z direction, and a second driving mechanism for driving two clamps arranged in the movable frame to move toward or away from each other in the X direction; one end of the clamp is connected to the second driving mechanism, and the other end of the clamp forms a clamping cavity for clamping the steel pipe, one end of the first driving mechanism is connected to the bottom plate, the other end of the first driving mechanism is connected to the fixed frame, and the movable frame is connected to the first driving mechanism.

[0006] In the above scheme, two groups of clamps for clamping the steel pipe are arranged in the Z direction (the height direction of the steel pipe) to realize "double-layer" positioning, which greatly improves the stability of the steel pipe fixation and can effectively resist the impact force during pouring; the clamps are opened and closed by displacement towards or away from each other, which can quickly clamp the steel pipe, greatly reducing the workload of tightening multiple bolts and improving efficiency.

[0007] Preferably, the first driving mechanism includes a first screw rod, a second plate and two first plates, the two first plates are respectively fixed to the fixed frame and the bottom plate, the first screw rod is rotatably arranged between the two first plates, the first screw rod is threadedly connected to two second plates, and the two second plates are respectively connected to the two movable frames one by one.

[0008] Preferably, the first driving mechanism further includes a first handle, the first screw rod passes through a first plate on the fixed frame, and the first handle is connected to an exit end of the first screw rod.

[0009] Preferably, the second driving mechanism comprises a second screw rod, a first bevel gear, an intermediate rod and a second bevel gear; the second screw rod is rotatably arranged in the moving frame, and one end of the second screw rod passes through the moving frame, and the first bevel gear is connected to the passing end of the second screw rod, and the clamping claw is threadedly connected to the second screw rod;

[0010] The intermediate rod is rotatably arranged in the fixed frame, and two second bevel gears that can move together with the movable frame are fixed on the intermediate rod. The first bevel gears on the two movable frames are meshed with the two second bevel gears in a one-to-one correspondence.

[0011] Preferably, the steel pipe fixing device of the foundation pile also includes a sleeve and a push plate, one end of the push plate is connected to the movable frame, the other end of the push plate is sleeved on the middle rod, the sleeve is sleeved on the middle rod, and the push plate is connected to the end face of the second bevel gear through the sleeve.

[0012] Preferably, the second driving mechanism further includes a second handle, one end of the intermediate rod passes through the top of the fixed frame, and the second handle is connected to the passing end of the intermediate rod.

[0013] Preferably, the clamp includes an arc-shaped clamping plate, a connecting block connected to one end of the clamping plate, and a fixed plate connected to the other end of the clamping plate, and the connecting block is connected to the second driving mechanism. When the two clamping jaws on the same movable frame are closed toward each other, the two fixed plates are attached and fixed by the first fastener, and the clamping cavity is formed on the clamping plate.

[0014] Preferably, a telescopic support rod is provided between the two movable frames.

[0015] Preferably, the support rod is a spring.

[0016] Preferably, the support rod includes an outer tube and an inner rod, the outer tube is connected to the movable frame at the lower end, one end of the inner rod is inserted into the outer tube and connected to the inner bottom surface of the outer tube through a spring, and the other end of the inner rod is connected to the movable frame at the upper end.

[0017] Preferably, a hanging buckle is provided on the fixing frame.

[0018] Compared with the related art, the beneficial effects of the utility model are:

[0019] 1. There are two clamps for clamping the steel pipe in the Z direction (the height direction of the steel pipe), which realizes "double-layer" positioning, greatly improves the stability of the steel pipe fixation, and can effectively resist the impact force during pouring;

[0020] 2. The clamping jaws are opened and closed by moving toward or away from each other, which can quickly clamp the steel pipe, greatly reducing the workload of tightening multiple bolts and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural schematic diagram of a first viewing angle of a steel pipe fixing device for foundation piles provided by the utility model;

[0022] Figure 2 A structural schematic diagram of a second viewing angle of the steel pipe fixing device for foundation piles provided by the utility model;

[0023] Figure 3 for Figure 1 A is an enlarged schematic diagram;

[0024] Figure 4 for Figure 2 The enlarged schematic diagram of point B in FIG.

[0025] In the accompanying drawings: 1, bottom plate; 2, fixed frame; 3, moving frame; 4, first driving mechanism; 41, first plate; 42, first screw rod; 43, second plate; 44, first handle; 5, second driving mechanism; 51, second screw rod; 52, first bevel gear; 53, intermediate rod; 54, second bevel gear; 55, second handle; 6, clamping claw; 61, clamping plate; 62, connecting block; 63, fixed plate; 64, first fastener; 65, clamping cavity; 7, supporting rod; 71, outer tube; 72, inner rod; 8, hanging buckle; 9, second fastener; 10, sleeve; 11, push plate; 12, limit strip. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0027] like Figure 1 , Figure 2As shown, a steel pipe fixing device for foundation piles provided in this embodiment includes a base plate 1, a fixed frame 2, a movable frame 3, a first driving mechanism 4, a second driving mechanism 5, a clamp 6, a support rod 7, a hanging buckle 8, a second fastener 9, a sleeve 10 and a push plate 11.

[0028] Both ends of the base plate 1 can be fixed to the ground by second fasteners 9 .

[0029] The fixing frame 2 is a rectangular frame surrounded on four sides and connected at both ends. The bottom of the fixing frame 2 is fixed to the bottom plate 1. Hanging buckles 8 are arranged on the side walls of the fixing frame 2. The hanging buckles 8 are used to install steel wire ropes to hang the steel pipe fixing device of the foundation pile to the position where it is needed. The height of the fixing frame 2 is appropriately designed according to the length of each type of steel pipe used.

[0030] The movable frame 3 is a long rectangular frame that is enclosed on four sides, connected at both ends, and extends along the X direction. Two movable frames 3 are provided in the fixed frame 2 .

[0031] The first driving mechanism 4 includes a first plate 41, a first screw rod 42, a second plate 43 and a first handle 44. The first plate 41 is fixed to the fixed frame 2 and the bottom plate 1 respectively. The first screw rod 42 is rotatably arranged between the two first plates 41 through a bearing. Two second plates 43 are threadedly connected to the first screw rod 42, and the two second plates 43 are respectively connected to the two moving frames 3 in a one-to-one correspondence. The first screw rod 42 passes through the first plate 41 on the fixed frame 2, and the first handle 44 is connected to the exit end of the first screw rod 42.

[0032] The first screw rod 42 is a forward and reverse double-thread structure. When the first handle 44 is rotated, the first screw rod 42 is driven to rotate, so that the two moving frames 3 on it are displaced toward or away from each other in the Z direction. If the height of the steel pipe is long, the two moving frames 3 are driven to move away from each other to increase the distance between the two moving frames 3. On the contrary, the two moving frames 3 are driven to move toward each other to reduce the distance between the two moving frames 3.

[0033] The second driving mechanism 5 includes a second screw rod 51 , a first bevel gear 52 , an intermediate rod 53 , a second bevel gear 54 , and a second handle 55 .

[0034] The second screw rod 51 is rotatably arranged in the moving frame 3 through a bearing, and the second screw rod 51 is located beside the moving frame 3. The second screw rod 51 is also a positive and negative double bolt structure. One end of the second screw rod 51 passes through the moving frame 3, and the first bevel gear 52 is connected to the passing end of the second screw rod 51. The intermediate rod 53 is rotatably arranged in the fixed frame 2 through a bearing. The limit bar 12 extends along the Z direction on the side walls at both ends of the intermediate rod 53, and two are arranged oppositely at each end. Two second bevel gears 54 are embedded and fixed on the intermediate rod 53 through the limit bar 12. The embedding and fixing of the limit bar 12 and the second bevel gear 54 means that the second bevel gear 54 can rotate with the intermediate rod 53, and the second bevel gear 54 can move up and down under the guidance of the limit bar 12. The first bevel gears 52 on the two moving frames 3 are meshed with the two second bevel gears 54 in a one-to-one correspondence. One end of the middle rod 53 passes through the top of the fixing frame 2 , and the second handle 55 is connected to the passing end of the middle rod 53 .

[0035] One end of the push plate 11 is connected to the moving frame 3, and the other end of the push plate 11 is sleeved on the middle rod 53. The sleeve 10 is sleeved on the middle rod 53. The upper end of the sleeve 10 is provided with a clamping wall spaced up and down, and the two clamping walls can be horizontally placed in an "H" shape. A through hole is provided on the push plate 11, and the sleeve 10 passes through the through hole and places the push plate 11 between the two clamping walls. The lower end of the sleeve 10 is fixed to the end face of the second bevel gear 54. When the middle rod 53 drives the second bevel gear 54 to rotate through the limit bar 12, the clamping wall of the sleeve 10 can rotate in the through hole of the push plate 11. At the same time, when the first driving mechanism 4 drives the two moving frames 3 to move, the push plate 11 between the two clamping walls can pull or push the sleeve 10 and the second bevel gear 54 to move up and down together with the moving frame 3.

[0036] The clamping jaw 6 includes an arc-shaped clamping plate 61, a connecting block 62 connected to one end of the clamping plate 61, and a fixing plate 63 connected to the other end of the clamping plate 61. The connecting block 62 is threadedly connected to the second screw rod 51. The connecting block 62 has a certain thickness, so that its upper and lower surfaces form a guide structure with the inner upper and lower surfaces of the moving frame 3 to prevent the clamping jaw 6 from rotating with the second screw rod 51. The arc of the clamping plate 61 can be designed to be elliptical so as to adapt to the clamping of steel pipes of different diameters.

[0037] When the second handle 55 is rotated, the intermediate rod 53 rotates, and the second bevel gear 54 on the intermediate rod 53 rotates together with the second screw rod 51, thereby driving the first bevel gear 52 meshing with the second bevel gear 54 to rotate, and the second screw rod 51 fixedly connected to the first bevel gear 52 rotates, so that the two clamping jaws 6 on the second screw rod 51 are displaced toward or away from each other in the X direction to achieve opening and closing.

[0038] When the two clamping jaws 6 on the same moving frame 3 are closed toward each other, the two fixing plates 63 are attached and fixed by the first fastener 64 , and the clamping cavity 65 is formed on the clamping plate 61 .

[0039] A telescopic support rod 7 is provided between the two moving frames 3. The support rod 7 includes an outer tube 71 and an inner rod 72. The outer tube 71 is connected to the moving frame 3 at the lower end. One end of the inner rod 72 is inserted into the outer tube 71 and connected to the inner bottom surface of the outer tube 71 through a spring. The other end of the inner rod 72 is connected to the moving frame 3 at the upper end. The elastic force of the spring makes the two moving frames 3 more stable when moving. In addition, the support rod 7 can also be a spring only.

[0040] When in use, the steel pipe fixing device of the foundation pile is hoisted to the required position by the steel wire rope, and the device is fixed by the second fastener 9. Then the steel pipe is hoisted into the clamping cavity 65 of the clamping jaw 6. First, the distance between the upper and lower groups of clamping jaws 6 is adjusted by the first driving mechanism 4, and then the clamping jaws 6 are closed by the second driving mechanism 5, so that the clamping plate 61 clamps the steel pipe. Then the two closed clamping plates 61 are fixed by the first fastener 64. This fixing structure is not easy to cause the steel pipe to deviate when pouring concrete, maintains good stability, and improves the molding quality of the foundation pile.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A steel pipe fixing device for foundation piles, characterized in that: The invention comprises a base plate (1), a fixed frame (2) arranged on the base plate (1), two movable frames (3) arranged in the fixed frame (2), a first driving mechanism (4) for driving the two movable frames (3) to move towards or away from each other in the Z direction, and a second driving mechanism (5) for driving two clamping jaws (6) arranged in the movable frame (3) to move towards or away from each other in the X direction; one end of the clamping jaw (6) is connected to the second driving mechanism (5), and the other end of the clamping jaw (6) forms a clamping cavity (65) for clamping a steel pipe; one end of the first driving mechanism (4) is connected to the base plate (1), and the other end of the first driving mechanism (4) is connected to the fixed frame (2); and the movable frame (3) is connected to the first driving mechanism (4).

2. The steel pipe fixing device for foundation piles according to claim 1, characterized in that: The first driving mechanism (4) comprises a first screw rod (42), a second plate (43) and two first plates (41), the two first plates (41) being fixed to the fixed frame (2) and the bottom plate (1) respectively, the first screw rod (42) being rotatably arranged between the two first plates (41), the first screw rod (42) being threadedly connected to the two second plates (43), and the two second plates (43) being connected to the two movable frames (3) respectively in a one-to-one correspondence.

3. The steel pipe fixing device for foundation piles according to claim 2, characterized in that: The first driving mechanism (4) further comprises a first handle (44); the first screw rod (42) passes through the first plate (41) on the fixed frame (2), and the first handle (44) is connected to the exit end of the first screw rod (42).

4. The steel pipe fixing device for foundation piles according to claim 1, characterized in that: The second driving mechanism (5) comprises a second screw rod (51), a first bevel gear (52), an intermediate rod (53) and a second bevel gear (54); the second screw rod (51) is rotatably arranged in the moving frame (3), and one end of the second screw rod (51) passes through the moving frame (3), and the first bevel gear (52) is connected to the passing end of the second screw rod (51), and the clamping claw (6) is threadedly connected to the second screw rod (51); The intermediate rod (53) is rotatably arranged in the fixed frame (2); two second bevel gears (54) capable of moving together with the movable frame (3) are fixed on the intermediate rod (53); the first bevel gears (52) on the two movable frames (3) are meshed with the two second bevel gears (54) in a one-to-one correspondence.

5. The steel pipe fixing device for foundation piles according to claim 4, characterized in that: It also includes a sleeve (10) and a push plate (11), one end of the push plate (11) is connected to the moving frame (3), the other end of the push plate (11) is sleeved on the middle rod (53), the sleeve (10) is sleeved on the middle rod (53), and the push plate (11) is connected to the end face of the second bevel gear (54) through the sleeve (10).

6. The steel pipe fixing device for foundation piles according to claim 4, characterized in that: The second driving mechanism (5) further comprises a second handle (55), one end of the intermediate rod (53) passes through the top of the fixed frame (2), and the second handle (55) is connected to the passing end of the intermediate rod (53).

7. The steel pipe fixing device for foundation piles according to claim 1, characterized in that: The clamping jaw (6) comprises an arc-shaped clamping plate (61), a connecting block (62) connected to one end of the clamping plate (61), and a fixing plate (63) connected to the other end of the clamping plate (61); the connecting block (62) is connected to the second driving mechanism (5); when the two clamping jaws (6) on the same moving frame (3) are closed toward each other, the two fixing plates (63) are attached and fixed by a first fastener (64); and the clamping cavity (65) is formed on the clamping plate (61).

8. The steel pipe fixing device for foundation piles according to claim 1, characterized in that: A telescopic support rod (7) is provided between the two movable frames (3).

9. The steel pipe fixing device for foundation piles according to claim 8, characterized in that: The support rod (7) comprises an outer cylinder (71) and an inner rod (72); the outer cylinder (71) is connected to the movable frame (3) at the lower end; one end of the inner rod (72) is inserted into the outer cylinder (71) and connected to the inner bottom surface of the outer cylinder (71) via a spring; the other end of the inner rod (72) is connected to the movable frame (3) at the upper end.

10. The steel pipe fixing device for foundation piles according to claim 1, characterized in that: The fixing frame (2) is provided with a hanging buckle (8).

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