Hole forming device of cement mixing pile

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a cement mixing pile hole forming device which comprises a supporting frame, a supporting plate fixedly connected to the upper end of the supporting frame, a positioning rod fixedly connected between the supporting plate and the supporting frame, a hydraulic cylinder fixedly installed on the upper side of the supporting plate, and a drilling mechanism arranged on the inner side of the supporting frame. The drilling mechanism comprises a supporting rod, a supporting cylinder, a motor, a connecting cylinder, a first drill rod, a first connecting plate, a second drill rod, a drill bit and a protective cylinder, and the protective cylinder sleeves the outer side of the second drill rod; in the drilling process, the first connecting plate drives the protective barrel and the drill bit to rotate synchronously, the protective barrel is pushed downwards through the hydraulic cylinder, the protective barrel supports the side wall of a hole while drilling is conducted, collapse of soft soil on the side wall of the hole is effectively avoided, the grouting pipe can conduct grouting on the interior of the hole rapidly, and the construction efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, concretely relates to a cement mixing pile's pore forming device. BACKGROUND

[0002] Cement mixing pile is a commonly used ground treatment method, by mixing cement and soil, forming a mixing pile body with high strength, thereby improving the bearing capacity of the foundation.

[0003] Among them, the announcement number CN218880818U discloses a cement soil mixing pile reinforced rotary excavating pore forming device, including fixed column, the bottom fixed connection of fixed column has the fixed plate, the right side fixed connection of fixed plate has the protection box, both sides of protection box top are provided with stabilizing mechanism, stabilizing mechanism includes support plate, the number of support plate is two, the bottom of two support plate is fixedly connected to the upper surface of protection box near the middle part of one side of the front and near the middle part of one side of the back.

[0004] The device can effectively improve the hole digging quality, but due to the complex geological environment, it is easy to pass through the soft soil layer in the drilling process, the soil inside the soft soil layer is relatively loose, the existing protection structure is mostly fixedly arranged or rotates out of step with the drill rod, and the hole side wall cannot be effectively supported in real time during drilling, when the drill bit and the drill rod are taken out, the drilling inside the soft soil layer is prone to collapse, the drilling is blocked, and the grouting pipe cannot be deeply grouted to the bottom of the drilling, so the drilling needs to be dredged again, resulting in low construction efficiency.

[0005] Therefore, it is necessary to invent a cement mixing pile pore forming device to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a cement mixing pile pore forming device to solve the problems of the drilling inside the soft soil layer being prone to collapse, the drilling being blocked, the grouting pipe being unable to be deeply grouted to the bottom of the drilling, the drilling needing to be dredged again, and low construction efficiency.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: A cement mixing pile's pore forming device, including support frame, the upper end of support frame is fixedly connected with support plate, the fixedly connected with positioning rod between support plate and support frame, the upside of support plate is fixedly installed with hydraulic cylinder, the inside of support frame is provided with drilling mechanism, drilling mechanism includes support rod, support cylinder, motor, connecting cylinder, first drill rod, first connecting plate, second drill rod, drill bit and protection cylinder, the outside of second drill rod is sleeved with protection cylinder.

[0008] Through adopting the above technical scheme, the protection cylinder is sleeved on the outside of the second drill rod, and the upper end thereof is fixed with the first connecting plate, the hydraulic cylinder pushes the drilling mechanism downward, and the output end of the motor drives the first drill rod, the second drill rod and the drill bit to rotate, the ground is drilled, the first connecting plate drives the protection cylinder to rotate synchronously during drilling, and the protection cylinder is pushed downward, the sidewall of the hole is supported, the collapse of the soft soil of the sidewall of the hole is avoided, the grouting pipe can quickly grout the inside of the hole, and the construction efficiency is effectively improved.

[0009] Optionally, the left and right ends of the support rod are fixedly connected with positioning sleeves, and the positioning sleeves are slidably connected with the positioning rod.

[0010] Through the above technical scheme, the positioning sleeve slides up and down on the surface of the positioning rod to limit the position of the support rod.

[0011] Optionally, the support cylinder is fixedly connected with the middle position of the upper surface of the support rod, the telescopic rod in the hydraulic cylinder is fixedly connected with the end of the support cylinder, and the motor is fixedly installed in the inside of the support cylinder.

[0012] Through the above technical scheme, the telescopic rod in the hydraulic cylinder drives the support rod to move up and down.

[0013] Optionally, the first drill rod is rotatably connected with the inside of the connecting cylinder, the upper end of the first drill rod is fixedly connected with the output end of the motor, the surface of the first connecting plate is fixedly connected with the first drill rod, and four groups of connecting holes are formed in the surface of the first connecting plate.

[0014] Through the above technical scheme, the output end of the motor drives the first drill rod and the first connecting plate to rotate.

[0015] Optionally, the lower end of the first drill rod is fixedly connected with a plug-in block, the upper end of the second drill rod is provided with a plug-in groove, and the drill bit is fixedly connected with the lower end of the second drill rod.

[0016] Optionally, the plug-in block is inserted into the inside of the plug-in groove, and the side surface of the plug-in block is fixed through screws.

[0017] By adopting the technical scheme, the plug-in block is inserted into the inside of the plug-in slot and is fixed by using a screw, and then the first drill rod and the second drill rod are fixed, at this time, the output end of the motor drives the first drill rod, the second drill rod and the drill bit to rotate to drill the ground.

[0018] Optionally, the protection cylinder is semicircular and is provided with two groups, the upper ends of the two groups of protection cylinders are fixedly connected with second connecting plates, the upper surfaces of the two groups of second connecting plates are fixedly connected with two groups of lead screws, and the lower ends of the two groups of protection cylinders are fixedly connected with multiple groups of sawteeth.

[0019] By adopting the technical scheme, the two groups of protection cylinders are oppositely spliced together, and the lead screws are inserted into the inside of the connecting holes to lock and fix the protection cylinders and the first connecting plate in cooperation with the nuts.

[0020] Optionally, the front and rear ends of the right protection cylinder are fixedly connected with multiple groups of clamping blocks, and the front and rear ends of the left protection cylinder are provided with multiple groups of clamping grooves, and the clamping blocks are clamped in the inside of the clamping grooves.

[0021] By adopting the technical scheme, the two groups of semicircular protection cylinders are oppositely covered outside the transmission rod during installation, and the clamping blocks are clamped into the inside of the clamping grooves to clamp the two groups of protection cylinders.

[0022] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0023] 1. The utility model discloses a protection cylinder is sleeved outside the second drill rod, and the first connecting plate drives the protection cylinder to rotate synchronously during drilling, and the protection cylinder is pushed down to support the sidewall of the hole, which effectively prevents the soft soil of the sidewall from collapsing, enables the grouting pipe to quickly grout the inside of the hole, effectively improves the construction efficiency, and solves the problem that the drilling in the soft soil layer is prone to collapse, the drilling is blocked, and the grouting pipe cannot be deeply grouted to the bottom of the drilling, so that the drilling needs to be dredged again, resulting in low construction efficiency.

[0024] 2. The utility model discloses two groups of semicircular protection cylinders are spliced together, and the lead screw and the nut are used to connect the first connecting plate, so that the first drill rod and the second drill rod rotate synchronously, and then the protection cylinder is pushed down quickly, and the sawteeth and the drill bit are used to improve the drilling speed. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the whole structure schematic diagram of the utility model;

[0026] Figure 2 It is the drilling mechanism structure schematic diagram of the utility model;

[0027] Figure 3 The utility model discloses Figure 2 The cross section structure schematic diagram of the utility model discloses

[0028] Figure 4 The first connecting plate structure schematic diagram of the utility model discloses

[0029] Figure 5 The protection cylinder structure schematic diagram of the utility model discloses

[0030] Mark explanation:

[0031] 1, support frame, 11, positioning rod, 12, support plate, 13, hydraulic cylinder, 2, support rod, 21, positioning sleeve, 22, support cylinder, 23, motor, 24, connecting cylinder, 25, first drill rod, 26, first connecting plate, 27, connecting hole, 28, plug-in block, 3, second drill rod, 31, drill bit, 32, plug-in slot, 4, protection cylinder, 41, clamping block, 42, clamping groove, 43, sawtooth, 44, second connecting plate, 45, screw rod. Specific implementation

[0032] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in the following with the attached drawing.

[0033] The utility model provides a kind of cement mixing pile's pore-forming device as Figures 1 to 3 The utility model discloses a kind of cement mixing pile's pore-forming device, including support frame 1, the upper end of support frame 1 is fixedly connected with support plate 12, positioning rod 11 is fixedly connected between support plate 12 and support frame 1, the upper side of support plate 12 is fixedly installed with hydraulic cylinder 13, the inside of support frame 1 is provided with drilling mechanism, drilling mechanism includes support rod 2, support cylinder 22, motor 23, connecting cylinder 24, first drill rod 25, first connecting plate 26, second drill rod 3, drill bit 31 and protection cylinder 4, protection cylinder 4 is set on the outside of second drill rod 3, the left and right ends of support rod 2 are all fixedly connected with positioning sleeve 21, positioning sleeve 21 is slidably connected with positioning rod 11, support cylinder 22 is fixedly connected with the middle position of support rod 2 upper surface, the end of hydraulic cylinder 13 telescopic rod is fixedly connected with support cylinder 22, motor 23 is fixedly installed in the inside of support cylinder 22, first drill rod 25 is rotatably connected with the inside of connecting cylinder 24, the upper end of first drill rod 25 is fixedly connected with the output end of motor 23, first connecting plate 26 is fixedly connected with the surface of first drill rod 25, four groups of connecting holes 27 are set on the surface of first connecting plate 26.

[0034] Wherein, in the process of using, the first drill pipe 25 is connected with the second drill pipe 3, then the protective cylinder 4 is covered outside the second drill pipe 3, and the upper end thereof is locked and fixed with the first connecting plate 26, then the output end of the motor 23 drives the first drill pipe 25 to rotate, the first drill pipe 25 drives the second drill pipe 3 and the protective cylinder 4 to rotate synchronously, at this time, the telescopic rod in the hydraulic cylinder 13 pushes down the second drill pipe 3, the drill bit 31 and the protective cylinder 4 together to drill the ground, at this time, the protective cylinder 4 supports the side wall of the hole to avoid the collapse of the side wall of the hole, when the hole is drilled, the protective cylinder 4 can be separated from the first connecting plate 26, the second drill pipe 3 and the drill bit 31 are taken out, the protective cylinder 4 continues to stay in the hole to support, after the hole is poured with cement, the protective cylinder 4 is taken out, so that the cement is mixed with the soil of the side wall of the hole.

[0035] Referring to Figure 4 and Figure 5 The lower end of the first drill pipe 25 is fixedly connected with a plug-in block 28, the upper end of the second drill pipe 3 is provided with a plug-in groove 32, the drill bit 31 is fixedly connected with the lower end of the second drill pipe 3, the plug-in block 28 is inserted into the plug-in groove 32, and the side surface of the plug-in block 28 is fixed by screws with the plug-in groove 32, the protective cylinder 4 is semicircular and provided with two groups, the upper end of the two groups of protective cylinders 4 is fixedly connected with a second connecting plate 44, the upper surface of the two groups of second connecting plates 44 is fixedly connected with two groups of lead screws 45, the lower end of the two groups of protective cylinders 4 is fixedly connected with a plurality of sawteeth 43, the front and rear ends of the right protective cylinder 4 are fixedly connected with a plurality of clamping blocks 41, and the front and rear ends of the left protective cylinder 4 are provided with a plurality of clamping grooves 42.

[0036] Specifically, in the process of installing the second drill pipe 3, the plug-in block 28 is inserted into the plug-in groove 32, and then the plug-in block 28 is locked and fixed by screws, so that the first drill pipe 25 and the second drill pipe 3 are locked and fixed.

[0037] In addition, in the process of fixing the protective cylinder 4, the two groups of semicircular protective cylinders 4 are oppositely covered outside the second drill pipe 3, then the clamping blocks 41 are clamped in the clamping grooves 42 to splice the two groups of semicircular protective cylinders 4, then the protective cylinder 4 is moved upwards, the lead screws 45 are inserted into the connecting holes 27, and the lead screws 45 are locked by screws, so that the protective cylinder 4 is locked and fixed with the first connecting plate 26.

[0038] The working principle of the utility model is: the protective cylinder 4 is sleeved outside the second drill pipe 3, the first connecting plate 26 drives the protective cylinder 4 and the drill bit 31 to rotate synchronously in the process of drilling, and the protective cylinder 4 is pushed down by the hydraulic cylinder 13, the side wall of the hole is supported while drilling, the soft soil of the side wall of the hole is effectively prevented from collapsing, the grouting pipe can quickly grout the inside of the hole, and the construction efficiency is effectively improved.

[0039] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A hole-forming device for cement deep mixing, comprising a support frame (1), characterized in that: The upper end of the support frame (1) is fixedly connected with a support plate (12), a positioning rod (11) is fixedly connected between the support plate (12) and the support frame (1), a hydraulic cylinder (13) is fixedly installed on the upper side of the support plate (12), a drilling mechanism is arranged on the inner side of the support frame (1), and the drilling mechanism comprises a support rod (2), a support barrel (22), a motor (23), a connecting barrel (24), a first drill rod (25), a first connecting plate (26), a second drill rod (3), a drill bit (31) and a protection barrel (4), the protection barrel (4) is sleeved on the outer side of the second drill rod (3); the protection barrel (4) is semicircular and is provided with two groups, the upper end of each of the two groups of protection barrels (4) is fixedly connected with a second connecting plate (44), the upper surfaces of the two groups of second connecting plates (44) are fixedly connected with two groups of lead screws (45), the lower ends of the two groups of protection barrels (4) are fixedly connected with a plurality of sawteeth (43), the front and rear ends of the right protection barrel (4) are fixedly connected with a plurality of clamping blocks (41), and the front and rear ends of the left protection barrel (4) are provided with a plurality of clamping grooves (42).

2. The cement mixing pile hole forming device according to claim 1, characterized in that: The left and right ends of the support rod (2) are fixedly connected with positioning sleeves (21), and the positioning sleeves (21) are in sliding connection with the positioning rod (11).

3. The hole-forming device for cement mixing piles according to claim 1, characterized in that: The support barrel (22) is fixedly connected with the middle position of the upper surface of the support rod (2), the telescopic rod in the hydraulic cylinder (13) is fixedly connected with the end of the support barrel (22), and the motor (23) is fixedly installed in the interior of the support barrel (22).

4. The hole-forming device for cement mixing piles according to claim 1, characterized in that: The first drill rod (25) is in rotary connection with the interior of the connecting barrel (24), the upper end of the first drill rod (25) is fixedly connected with the output end of the motor (23), the first connecting plate (26) is fixedly connected with the surface of the first drill rod (25), and four groups of connecting holes (27) are formed in the surface of the first connecting plate (26).

5. The hole-forming device for cement mixing piles according to claim 1, characterized in that: The lower end of the first drill rod (25) is fixedly connected with a plug-in block (28), the upper end of the second drill rod (3) is provided with a plug-in groove (32), and the drill bit (31) is fixedly connected with the lower end of the second drill rod (3).

6. A device for forming a hole for a cement mixing pile according to claim 5, characterized in that: The plug-in block (28) is plugged into the plug-in groove (32), and the side surface of the plug-in block (28) is fixed by screws.

Images