Reaming device for pile foundation construction

Abstract

The utility model relates to the field of pile foundation construction, and discloses a reaming device for pile foundation construction, which comprises a barrel body, the barrel body comprises a support column barrel and a support column plate, one end of the support column plate is fixedly connected with the support column barrel, the barrel body is provided with a drill bit structure, and the drill bit structure comprises a drilling coring reamer structure and a multi-wing reamer structure. The drilling coring reamer structure comprises a drill tooth assembly, a movable square head, a shell assembly and a first transmission assembly, and the multi-wing reamer structure comprises a drill tooth assembly, a second connecting structure, a third connecting structure, a barrel assembly and a second transmission assembly. The broaching movement mainly depends on the gravity of the broaching device and the gravity of the drill rod in cooperation with the connecting rod transmission assembly to enable the pushing mechanism to stretch and expand outwards, so that cutting broaching is conducted on the wall of a drilled hole, pure mechanical broaching is achieved, and extra hydraulic or electric driving is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pile foundation construction, specifically to a reaming device for pile foundation construction. BACKGROUND

[0002] In pile foundation construction, the rotary excavator reaming device plays a crucial role. For some large-diameter pile foundations or special pile types (such as expanded base piles), the reaming device can accurately enlarge the pile hole size. The reaming device not only improves construction efficiency but also ensures that the depth and diameter of the pile hole meet design specifications. This process is particularly critical for pile foundations that need to withstand heavy loads. Only through effective reaming can the bearing capacity and stability of the pile foundation be guaranteed. In addition, when facing complex soil conditions and strength requirements, the reaming device provides a flexible construction solution, helping engineers optimize pile foundation design and ensuring construction safety and reliability.

[0003] Existing reaming devices usually require additional hydraulic or electric drive to ensure efficient operation, which not only increases the complexity of the equipment but also increases construction costs and energy consumption. Regular maintenance and repair of hydraulic systems or power systems are required to avoid delays and additional expenses due to failures. Therefore, we propose a reaming device for pile foundation construction. SUMMARY

[0004] (I) Technical problems solved

[0005] To address the shortcomings of the prior art, the utility model provides a reaming device for pile foundation construction, which solves the above problems.

[0006] (II) Technical solutions

[0007] To achieve the above purposes, the utility model provides the following technical solutions: a reaming device for pile foundation construction, including a barrel body, the barrel body includes a support cylinder and a support plate, the support plate is fixedly connected to the support cylinder at one end, the barrel body is provided with a drill bit structure, the drill bit structure includes a drilling core reaming drill structure and a multi-wing reaming drill structure, the drilling core reaming drill structure includes a drill bit assembly, a movable four-square head, a housing assembly and a first transmission assembly, the multi-wing reaming drill structure includes a drill bit assembly, a connection structure two, a connection structure three, a barrel body assembly and a second transmission assembly.

[0008] Preferably, the movable four-square head is slidingly connected to the support cylinder in the support cylinder, the side of the support plate away from the support cylinder is provided with a housing assembly, a plurality of circumferentially uniformly distributed first transmission assemblies are provided in the housing assembly corresponding to the support cylinder and the movable four-square head, the first transmission assemblies are hingedly connected to the drill bit assembly at the end away from the movable four-square head, and the housing assembly is fixedly connected to a group of uniformly distributed drill bit assemblies at the end away from the support plate.

[0009] Preferably, the shell assembly comprises a shell and drill bit through holes, one end of the shell is fixedly connected to the side of the support plate away from the support cylinder, a plurality of circumferentially uniformly distributed lugs are fixedly connected to the cylindrical surface of the shell corresponding to the flat edge of the support cylinder, and a plurality of uniformly distributed drill bit through holes are provided in the cylindrical surface of the shell corresponding to the lugs.

[0010] Preferably, the first transmission assembly comprises a connecting rod one, a lug, a hinged rod, and a connecting rod two, the lug is fixedly connected to the cylindrical surface of the one end of the movable four-square head in the shell, the hole of the lug is axially consistent with the hole of the lug on the shell, two symmetric hinged rods are fixedly connected to one side of the connecting rod one near the two ends, the hinged rod is fixedly connected to one side of the connecting rod two near one end, a hinged hole is provided in one side of the connecting rod two corresponding to the symmetric hinged rod of the connecting rod two, one of the hinged rods on the connecting rod one is hingedly connected to the hole of the lug on the movable four-square head, the other hinged rod of the connecting rod one is hingedly connected to the hinged hole of the connecting rod two, the hinged rod on the connecting rod two is hingedly connected to the hole of the lug on the shell, and the drill tooth assembly is fixedly connected to one end of the lug on the connecting rod two corresponding to the lug on the shell, and the drill tooth assembly corresponds to the drill bit through hole.

[0011] Preferably, the connecting structure two is slidably connected in the support plate, the connecting structure three is fixedly connected to one end of the connecting structure two away from the support plate, a plurality of uniformly distributed through holes are provided in the support cylinder corresponding to the connecting structure two, the barrel assembly is provided on the side of the support plate opposite to the connecting structure three corresponding to the support cylinder and the connecting structure two, a plurality of circumferentially uniformly distributed second transmission assemblies are provided between the barrel assemblies corresponding to the connecting structure two, and the drill tooth assembly is fixedly connected to one end of the second transmission assembly outside the barrel assembly.

[0012] Preferably, the barrel assembly comprises a vertical plate and a reinforcing rib plate, a plurality of vertical plates are fixedly connected to the side of the support plate opposite to the connecting structure three in a circumferentially uniform distribution, one set of vertical plates comprises two parallel corresponding vertical plates, one side of the vertical plate away from the support plate corresponds to the connecting structure three, and a set of linearly arranged reinforcing rib plates are fixedly connected between every two adjacent vertical plates, a hinged hole is provided in the side of the vertical plate opposite to the two reinforcing rib plates, and a plurality of circumferentially distributed lugs are fixedly connected to one side of the connecting structure two corresponding to the vertical plate.

[0013] Preferably, the second transmission assembly comprises connecting rod three, connecting rod five and connecting rod four, connecting rod three is fixedly connected with two symmetrical hinged rods near two ends, connecting rod five is fixedly connected with two symmetrical hinged rods near two ends, connecting rod four corresponds to a group of the stand plate and is arranged between a group of the stand plate, a hinged hole is arranged in the hinged hole on the corresponding stand plate of connecting rod four, the hinged hole on connecting rod four is hingedly connected with the hinged rod on connecting rod three, the other hinged rod on connecting rod three is hingedly connected with the corresponding hinged hole on the stand plate, the hinged hole closest to the connecting structure two on connecting rod four is hingedly connected with the hinged rod on connecting rod five, the other hinged rod on connecting rod five is hingedly connected with the hole of the lug on the connecting structure two, and the corresponding stand plate of connecting rod four is fixedly connected with a group of evenly distributed drill tooth assemblies on the side away from the support cylinder.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a reamer for pile foundation construction has the following beneficial effects:

[0016] The reamer for pile foundation construction, the movement of reaming mainly relies on the gravity of the self and the drill rod and the connecting rod transmission assembly to make the pushing mechanism stretch and expand, so that the hole wall is cut and reamed, the reaming is pure mechanical, does not need additional hydraulic or electric drive, greatly simplifies the structure and operation process of equipment, not only reduces the dependence on external power source, but also improves the adaptability under different soil conditions, can be applied to various construction environments, in addition, reduces energy consumption and maintenance cost and increases work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the core taking and reaming combined drill bit of the utility model;

[0018] Figure 2 It is the structure sectional view schematic diagram of the core taking and reaming combined drill bit of the utility model;

[0019] Figure 3 It is the structure schematic diagram of the multi-wing reaming drill of the utility model;

[0020] Figure 4 It is the structure schematic diagram of the multi-wing reaming drill and the second transmission assembly of the utility model.

[0021] In the drawing: 1, shell; 2, drill tooth assembly; 3, drill bit through hole; 4, support cylinder; 5, movable square head; 6, connecting rod one; 7, lug; 8, connecting rod two; 9, support plate; 10, hinged rod; 11, hinged hole; 12, connecting rod three; 13, stand plate; 14, connecting rod four; 15, connecting rod five; 16, through hole; 17, connecting structure two; 18, reinforcing rib plate; 19, connecting structure three. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figures 1-4 A reaming device for pile foundation construction, including bucket body, bucket body includes support cylinder 4 and support plate 9, and one end of support plate 9 is fixedly connected with support cylinder 4, and bucket body is provided with drill bit structure, drill bit structure includes drilling core reaming drill structure and multi-wing reaming drill structure, drilling core reaming drill structure includes drill bit assembly 2, movable four-square head 5, shell assembly and first transmission assembly, and multi-wing reaming drill structure includes drill bit assembly 2, connecting structure two 17, connecting structure three 19, bucket body assembly and second transmission assembly.

[0024] Further, movable four-square head 5 is slidably connected with support cylinder 4 in support cylinder 4, and the side of support plate 9 away from support cylinder 4 is provided with shell assembly, and a plurality of circumferentially uniformly distributed first transmission assemblies are arranged in shell assembly corresponding to support cylinder 4 and movable four-square head 5, and drill bit assembly 2 is hingedly connected to the end of first transmission assembly away from movable four-square head 5, and a plurality of uniformly distributed drill bit assemblies 2 are fixedly connected to the end of shell assembly away from support plate 9, and drill bit assembly 2 is used for reaming, movable four-square head 5 is used for being connected with rotary excavator drill rod, and movable four-square head 5 provides power for the movement of drill bit assembly 2.

[0025] Further, the shell assembly includes a shell 1 and a drill bit through hole 3, and the shell 1 is fixedly connected to the side of the support plate 9 away from the support cylinder 4, a plurality of circumferentially uniformly distributed lugs 7 are fixedly connected to the inner side of the shell 1 corresponding to the edge of the support cylinder 4, a plurality of uniformly distributed drill bit through holes 3 are formed in the cylindrical surface of the shell 1 corresponding to the lugs 7, the shell 1 is used for surrounding and protecting the movable four-square head 5, the drill bit through hole 3 is a through hole for the extension and retraction of the drill bit assembly 2, and the support cylinder 4 is used for limiting the vertical sliding of the movable four-square head 5, and the lug 7 is a fixed seat for the hinged connection of the transmission assembly.

[0026] Further, the first transmission assembly includes connecting rod one 6, lug 7, articulated rod 10 and connecting rod two 8, lug 7 is fixedly connected to the cylindrical surface of the one end of the movable four-square head 5 in the shell 1, the hole of the lug 7 is axially consistent with the hole of the lug 7 on the shell 1, one side of the connecting rod one 6 is fixedly connected to two symmetrical articulated rods 10, one side of the connecting rod two 8 is fixedly connected to the articulated rod 10, one side of the connecting rod two 8 is provided with an articulated hole 11 which is symmetrical to the articulated rod 10 of the connecting rod two 8, one of the articulated rods 10 on the connecting rod one 6 is hingedly connected to the hole of the lug 7 on the movable four-square head 5, the other articulated rod 10 on the connecting rod one 6 is hingedly connected to the articulated hole 11 of the connecting rod two 8, the articulated rod 10 on the connecting rod two 8 is hingedly connected to the hole of the lug 7 on the shell 1, the connecting rod two 8 is fixedly connected to the drill tooth assembly 2 corresponding to one end of the lug 7 on the shell 1, the drill tooth assembly 2 corresponds to the drill bit through hole 3, the connecting rod one 6 and the connecting rod two 8 are used to drive the movable four-square head 5 and the drill tooth assembly 2, so that the drill tooth assembly 2 moves in and out of the drill bit through hole 3 when the movable four-square head 5 slides up and down, and the articulated rod 10 and the articulated hole 11 are used to drive the hinged rotary motion.

[0027] Further, the strut plate 9 is slidably connected with a connecting structure two 17, the connecting structure two 17 is fixedly connected with a connecting structure three 19 at the end away from the strut plate 9, the strut cylinder 4 is provided with a plurality of uniformly distributed through holes 16 corresponding to the connecting structure two 17, the strut plate 9 is provided with a barrel assembly on the side opposite to the connecting structure three 19 corresponding to the strut cylinder 4 and the connecting structure two 17, a plurality of circumferentially uniformly distributed second transmission assemblies are provided between the barrel assemblies corresponding to the connecting structure two 17, the second transmission assemblies are fixedly connected with the drill tooth assembly 2 at the end outside the barrel assemblies, the connecting structure three 19 is used to be connected with the rotary excavator drill rod, the connecting structure two 17 is used to be slidably connected with the strut cylinder 4, the through holes 16 are used to observe the sliding state of the connecting structure two 17, and the connecting structure three 19 provides power for the movement of the drill tooth assembly 2.

[0028] Further, the barrel assembly includes a vertical plate 13 and a reinforcing rib plate 18, a plurality of vertical plates 13 are circumferentially uniformly distributed and fixedly connected to the side opposite to the connecting structure three 19 of the strut plate 9, one set of vertical plates 13 includes two parallel corresponding vertical plates 13, the side away from the strut plate 9 of each vertical plate 13 corresponds to the connecting structure three 19, a set of linearly arranged and uniformly distributed reinforcing rib plates 18 are fixedly connected between every two adjacent vertical plates 13, the side opposite to the vertical plate 13 is provided with an articulated hole 11 corresponding to the two reinforcing rib plates 18, the connecting structure two 17 is fixedly connected with a plurality of circumferentially distributed lugs 7 corresponding to the vertical plate 13, the vertical plate 13 is used to support and limit the transmission assembly, and the through holes 16 are used to strengthen the strength of the vertical plate 13 without deformation.

[0029] Further, the second transmission assembly comprises a connecting rod three 12, a connecting rod five 15 and a connecting rod four 14, the connecting rod three 12 is fixedly connected with two symmetrical hinged rods 10 at both ends, the connecting rod five 15 is fixedly connected with two symmetrical hinged rods 10 at both ends, the connecting rod four 14 corresponds to a group of vertical plates 13 and is between the vertical plates 13, the connecting rod four 14 is provided with a hinged hole 11 corresponding to the hinged hole 11 on the vertical plate 13, the hinged hole 11 on the connecting rod four 14 is hingedly connected with the hinged rod 10 on the connecting rod three 12, the other hinged rod 10 on the connecting rod three 12 is hingedly connected with the corresponding hinged hole 11 on the vertical plate 13, the hinged hole 11 closest to the connecting structure two 17 on the connecting rod four 14 is hingedly connected with the hinged rod 10 on the connecting rod five 15, the other hinged rod 10 on the connecting rod five 15 is hingedly connected with the hole of the lug 7 on the connecting structure two 17, the connecting rod four 14 is fixedly connected with a group of evenly distributed tooth drilling assemblies 2 on the side of the vertical plate 13 away from the strut cylinder 4, the connecting rod four 14 is used for mounting the tooth drilling assembly 2, the connecting rod three 12 and the connecting rod five 15 are used for driving the connecting structure two 17 and the tooth drilling assembly 2, and the hinged holes 11 on the vertical plate 13 are one less than the hinged holes 11 on the connecting rod four 14.

[0030] Working principle: when the core drilling reamer structure is used, the movable four-square head 5 is connected with the rotary drilling rod, the rotary drilling rod makes the movable four-square head 5 slide in the strut cylinder 4 due to gravity, when the movable four-square head 5 slides in the strut cylinder 4, the end of the connecting rod one 6 connected with the lug 7 moves away from the strut cylinder 4, so that the end of the connecting rod one 6 connected with the connecting rod two 8 also moves away from the strut cylinder 4, thereby making the tooth drilling assembly 2 at one end of the connecting rod two 8 rotate and extend out of the drill bit through-hole 3, and thus the rock wall is reamed; when the multi-wing reamer structure is used, the connecting structure three 19 is connected with the rotary drilling rod, the rotary drilling rod makes the connecting structure three 19 and the connecting structure two 17 slide in the strut cylinder 4 due to gravity, when the connecting structure two 17 slides in the strut cylinder 4, the end of the connecting rod five 15 connected with the lug 7 on the connecting structure two 17 moves into the strut cylinder 4, the end of the connecting rod five 15 connected with the connecting rod four 14 moves into the strut cylinder 4, thereby making the connecting rod four 14 rotate and move out of the vertical plate 13, and at the same time, the part of the connecting rod three 12 driving the connecting rod four 14 stably rotates and moves out of the vertical plate 13.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A reamer for pile construction, comprising a barrel, the barrel comprising a support cylinder (4) and a support plate (9), the support plate (9) being fixedly connected to the support cylinder (4) at one end, characterized in that: The barrel body is provided with a drill bit structure, which comprises a drilling core reamer structure and a multi-wing reamer structure.

2. The hole enlarging device for pile construction according to claim 1, characterized in that: The movable square head (5) is in sliding connection with the support cylinder (4) in the support cylinder (4), and the side of the support plate (9) away from the support cylinder (4) is provided with a shell assembly, and a plurality of groups of circumferentially uniformly distributed first transmission assemblies are arranged in the shell assembly corresponding to the support cylinder (4) and the movable square head (5), and the first transmission assemblies are hingedly connected with the drill bit assembly (2) at one end away from the movable square head (5), and the shell assembly is fixedly connected with a group of uniformly distributed drill bit assemblies (2) at one end away from the support plate (9).

3. The hole enlarging device for pile construction according to claim 1, characterized in that: The shell assembly comprises a shell (1) and a drill bit through hole (3), and the shell (1) is fixedly connected to the side of the support plate (9) away from the support cylinder (4), and a plurality of circumferentially uniformly distributed lugs (7) are fixedly connected to the shell (1) corresponding to the flat edge of the support cylinder (4), and a plurality of uniformly distributed drill bit through holes (3) are formed in the cylindrical surface of the shell (1) corresponding to the lugs (7).

4. A reamer as claimed in claim 3, characterised in that: The first transmission assembly comprises a connecting rod one (6), a lug (7), a hinged rod (10) and a connecting rod two (8), the lug (7) is fixedly connected to the cylindrical surface of the movable square head (5) at one end in the shell (1), the hole of the lug (7) is axially consistent with the hole of the lug (7) on the shell (1), one side of the connecting rod one (6) is fixedly connected with two symmetrical hinged rods (10) near the two ends, one side of the connecting rod two (8) is fixedly connected with the hinged rod (10) near one end, and a hinged hole (11) is formed in one side of the connecting rod two (8) and symmetrical with the hinged rod (10) of the connecting rod two (8), one of the hinged rods (10) on the connecting rod one (6) is hingedly connected with the hole of the lug (7) on the movable square head (5), the other hinged rod (10) on the connecting rod one (6) is hingedly connected with the hinged hole (11) of the connecting rod two (8), the hinged rod (10) on the connecting rod two (8) is hingedly connected with the hole of the lug (7) on the shell (1), and the drill bit assembly (2) is fixedly connected to the lug (7) at one end of the shell (1), and the drill bit assembly (2) corresponds to the drill bit through hole (3).

5. The hole enlarging device for pile construction according to claim 1, characterized in that: The connecting structure two (17) is fixedly connected with the connecting structure three (19) at one end away from the support plate (9), a plurality of groups of through holes (16) are uniformly distributed and are formed in the support cylinder (4) corresponding to the connecting structure two (17), and a plurality of groups of second transmission assemblies are uniformly distributed and are arranged between the barrel assemblies corresponding to the connecting structure two (17), and the drill tooth assembly (2) is fixedly connected at one end of the barrel assembly.

6. A reamer as claimed in claim 5, characterised in that: The barrel assembly comprises a vertical plate (13) and a reinforcing rib plate (18), a plurality of groups of vertical plates (13) are fixedly connected on one side of the support plate (9) opposite to the connecting structure three (19) in a circumferentially uniform distribution, one group of vertical plates (13) comprises two parallel vertical plates (13) corresponding to each other, one side of the vertical plate (13) away from the support plate (9) corresponds to the connecting structure three (19), one group of linearly arranged reinforcing rib plates (18) are fixedly connected between every two groups of adjacent vertical plates (13), and a hinge hole (11) is formed in the vertical plate (13) corresponding to the hinge holes (11) between the two reinforcing rib plates (18) opposite to each other.

7. A reamer as claimed in claim 6, characterised in that: The second transmission assembly comprises a connecting rod three (12), a connecting rod five (15) and a connecting rod four (14), two symmetrical hinge rods (10) are fixedly connected to one side of the connecting rod three (12) close to both ends, two symmetrical hinge rods (10) are fixedly connected to one side of the connecting rod five (15) close to both ends, the connecting rod four (14) corresponds to one group of vertical plates (13) and is between one group of vertical plates (13), a hinge hole (11) is formed in the connecting rod four (14) corresponding to the hinge holes (11) on the vertical plates (13), the hinge hole (11) on the connecting rod four (14) is hingedly connected with the hinge rod (10) on the connecting rod three (12), the other hinge rod (10) on the connecting rod three (12) is hingedly connected with the hinge hole (11) corresponding to the vertical plate (13), the hinge hole (11) closest to the connecting structure two (17) on the connecting rod four (14) is hingedly connected with one hinge rod (10) on the connecting rod five (15), and the other hinge rod (10) on the connecting rod five (15) is hingedly connected with the hole of the ear (7) on the connecting structure two (17), and a group of uniformly distributed drill tooth assemblies (2) are fixedly connected to one side of the connecting rod four (14) corresponding to the vertical plate (13) away from the support cylinder (4).

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