Squeezing and expanding device for squeezed and expanded branch pile construction

Abstract

The utility model discloses an extruding and expanding device with an axially adjustable extruding and expanding part for extruding and expanding branch pile construction, and relates to the technical field of extruding and expanding branch pile foundation equipment. The squeezing and expanding device is provided with a guide toothed bar with a first rack structure, a squeezing and expanding assembly of the squeezing and expanding device further comprises a moving module, and the moving module is mainly composed of a motor, a first transmission rod and a first gear. During use, the first gear on the first transmission rod can be driven by the motor to rotate, the first gear is meshed with the first rack structure, and the first rack structure is distributed in the axial direction of the guide rack rod, so that the rotating first gear can drive the squeezing and expanding assembly to move in the axial direction of the guide rack rod; according to the squeezing and expanding device, the function of axially adjusting the squeezing and expanding part is achieved, so that in the squeezing and expanding operation process through the squeezing and expanding device, the axial position of the squeezing and expanding part can be independently adjusted according to the requirement of a construction site, the construction requirement is met, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of squeezed branch pile foundation equipment, and in particular relates to an squeeze and expansion device for squeezed branch pile construction. Background Art

[0002] The squeezed branch and plate pile is a new type of reinforced concrete bored pile with a clear force mechanism. It often uses branch and plate squeezing machinery to apply three-dimensional static pressure to the soil around each branch and the load-bearing plate through hydraulic squeezing in the soil layer according to the geological conditions, forming a squeezed branch and plate pile cavity. The surrounding soil is then tightly combined with the concrete pile body and branch plate poured in the cavity to form a squeezed branch and plate pile, giving full play to the joint load-bearing effect of the pile and soil.

[0003] Most of the existing squeezing and expanding devices for constructing squeezing and expanding branch piles use hydraulic cylinders to drive squeezing and expanding arms to squeeze and expand the target soil layer, and can only squeeze and expand to form one branch cavity or star branch cavity in each construction.

[0004] For example: A Chinese utility model patent with authorization announcement number CN208039232U discloses a branch pile extrusion and expansion component, which includes a branch pile body, the branch pile body includes an extrusion and expansion arm, and the extrusion and expansion arm is serrated in shape; the extrusion and expansion arm includes an upper extrusion and expansion arm and a lower extrusion and expansion arm, and the upper extrusion and expansion arm and the lower extrusion and expansion arm are connected by a rotary cutter; the branch pile body is connected with a swivel joint, a hydraulic cylinder, a center rod and a fixed chassis in sequence from top to bottom, and the two ends of the fixed chassis are respectively hinged to the bottom ends of the two lower extrusion and expansion arms, and the top end of the upper extrusion and expansion arm is fixedly connected to the two ends of the hydraulic cylinder.

[0005] Another example: The Chinese utility model patent with authorization announcement number CN218150755U discloses a branch pile extrusion and expansion device, which includes a shell, which is connected to the end of the drill rod of a drilling machine, and the side wall of the shell is provided with an extrusion and expansion groove, in which a first hydraulic rod is arranged, and the piston rod of the first hydraulic cylinder is connected to an extrusion and expansion block, at least two extrusion and expansion sleeves are hinged in the extrusion and expansion groove, and an extrusion and expansion arm is sleeved in the extrusion and expansion sleeve, and the extrusion and expansion arm is hinged to the extrusion and expansion block, a casting channel is provided on the shell, and a sealing component for sealing the casting channel is arranged in the shell.

[0006] Another example: The Chinese utility model patent with authorization announcement number CN215482896U discloses an extrusion and expansion device for extruding branch plate piles, wherein a limiter for limiting the connecting rod is arranged at the pile hole mouth, the connecting rod is connected to the hydraulic operating system of the automobile crane and is hoisted into the pile hole, and a rotating push arm for guiding the connecting rod to rotate in a specified direction to achieve extrusion and expansion is arranged on the connecting rod, and an extrusion and expansion arm is installed at the bottom of the connecting rod, the extrusion and expansion arm is composed of a pair of umbrella-shaped structures that expand outward, and this structure shrinks inward to form a straight line, which can not only meet the actual production requirements of extrusion and expansion, but also take into account the ease of transportation; a collecting chamber is arranged at the bottom of the extrusion and expansion arm, and after the extrusion and expansion is completed, the collecting chamber is pulled up together with the extrusion and expansion arm, thereby effectively cleaning the hole; and the plate cavity is extruded and expanded by continuous extrusion through the hydraulic operating system, and a rotating push arm for guiding the connecting rod to rotate in a specified direction to achieve extrusion and expansion is arranged on the connecting rod, the shape of the plate cavity is controllable, effectively reducing the labor intensity of manual labor and reducing the cost of extrusion and expansion.

[0007] The above-mentioned three extrusion and expansion devices for constructing extruded branch piles all lack a mechanism for adjusting the axial position of the extruded part of the extrusion and expansion component. When in use, the axial position of the extruded part cannot be individually adjusted according to the requirements of the construction site. Only one branch cavity or star branch cavity can be extruded and expanded in each construction. This leads to great limitations in their use and makes it difficult to meet the increasingly complex extruded branch pile construction scenarios.

[0008] Therefore, there is an urgent need in the art for an extrusion and expansion device to solve the above technical problems. Utility Model Content

[0009] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an extrusion and expansion device for extrusion and expansion of branch plate piles, wherein the extrusion and expansion part of the extrusion and expansion component is axially adjustable.

[0010] The utility model solves the technical problem by adopting a technical solution: an extrusion and expansion device for extrusion and expansion of branch plate pile construction, comprising an extrusion and expansion component;

[0011] The extrusion and expansion assembly includes an extrusion and expansion base, and an extrusion and expansion arm mechanism arranged on the extrusion and expansion base;

[0012] It also includes a guide gear rod, on which a first rack structure distributed along the axial direction is provided;

[0013] The extrusion and expansion assembly further includes a moving module, which includes a motor arranged on the extrusion and expansion base, a first transmission rod transmission-connected to the power output end of the motor, and a first gear arranged on the first transmission rod;

[0014] The extrusion and expansion assembly is movably arranged on the guide gear rod through the extrusion and expansion base, and the first gear is meshed with the first rack structure; when the first gear rotates, it can drive the extrusion and expansion assembly to move along the distribution direction of the first rack structure.

[0015] Furthermore, a limit block is provided on at least one end of the guide gear rod, and the limit block is used to prevent the extrusion and expansion assembly from moving beyond the travel.

[0016] Furthermore, there are at least two sets of extrusion and expansion components.

[0017] Furthermore, the extrusion and expansion assembly includes at least two extrusion and expansion arm mechanisms uniformly distributed around the circumference of the extrusion and expansion base;

[0018] The squeezing and expanding arm mechanism comprises a squeezing and expanding arm mounting seat, a first electric push rod, a second electric push rod, a first squeezing and expanding arm, and a second squeezing and expanding arm;

[0019] The squeezing and expanding arm mechanism is arranged on the side of the squeezing and expanding base through the squeezing and expanding arm mounting seat, and the outer side surface of the squeezing and expanding arm mounting seat is provided with an squeezing and expanding arm mounting groove;

[0020] The first electric push rod and the second electric push rod are both arranged in the squeezing and expansion arm installation slot and are spaced apart, and the pushing ends of the two are opposite to each other;

[0021] The proximal ends of the first squeezing and expanding arm and the second squeezing and expanding arm are hinged together to form a squeezing and expanding part of the squeezing and expanding assembly; the distal ends of the first squeezing and expanding arm and the second squeezing and expanding arm are respectively hinged to the pushing end of the first electric push rod and the pushing end of the second electric push rod;

[0022] When the pushing end of the first electric push rod and / or the second electric push rod is extended, the first extrusion arm and the second extrusion arm can be driven to close to each other, so that the extrusion part moves in a direction away from the extrusion base to perform the extrusion operation.

[0023] Furthermore, the proximal ends of the first squeezing and expanding arm and the second squeezing and expanding arm are hingedly connected to each other through a hinge block;

[0024] The pushing end of the first electric push rod and the pushing end of the second electric push rod are respectively provided with a first fixing plate and a second fixing plate;

[0025] The distal ends of the first squeezing arm and the second squeezing arm are hinged to the first fixing plate and the second fixing plate respectively.

[0026] Furthermore, the extruded and expanded base body is provided with a groove which axially penetrates the extruded and expanded base body;

[0027] The movable module is arranged in the groove;

[0028] The guide gear rod is arranged through the groove.

[0029] Furthermore, the extruded and expanded substrate is cylindrical;

[0030] A guide rail is provided on the outer side wall of the extruded and expanded base body and surrounds the outer side wall of the extruded and expanded base body;

[0031] The squeezing and expanding arm mechanism is slidably arranged on the guide rail through the squeezing and expanding arm mounting seat.

[0032] Furthermore, the guide gear rod is prismatic and is coaxially arranged with the extrusion and expansion base.

[0033] Furthermore, the guide rack rod is in the shape of a quadrangular prism, and a first rack structure and a second rack structure are arranged on two opposite side walls thereof respectively; the arrangement direction of the second rack structure is the same as that of the first rack structure;

[0034] The moving module also includes a second gear disposed on the first transmission rod, a second transmission rod rotatably disposed in the groove, a third gear disposed on the second transmission rod and meshing with the second gear, and a fourth gear disposed on the second transmission rod and meshing with the second rack structure.

[0035] Further, at least one end of the first transmission rod is rotatably arranged on the groove wall of the groove through a first rod seat assembly; the first rod seat assembly includes a first fixed seat arranged on the groove wall of the groove, and a first rotating block movably arranged in the seat cavity of the first fixed seat; the end of the first transmission rod penetrates into the seat cavity of the first fixed seat and is connected to the first rotating block;

[0036] And / or, at least one end of the second transmission rod is rotatably set on the groove wall of the groove through a second rod seat assembly; the second rod seat assembly includes a second fixed seat arranged on the groove wall of the groove, and a second rotating block movably arranged in the seat cavity of the second fixed seat; the end of the second transmission rod penetrates into the seat cavity of the second fixed seat and is connected to the second rotating block.

[0037] The beneficial effects of the utility model are:

[0038] (1) The extrusion and expansion device is provided with a guide gear rod having a first rack structure, and its extrusion and expansion component also includes a moving module, which is mainly composed of a motor, a first transmission rod and a first gear. When in use, the motor can drive the first gear on the first transmission rod to rotate. Since the first gear is meshed with the first rack structure, and the first rack structure is distributed along the axial direction of the guide gear rod, the rotating first gear can drive the extrusion and expansion component to move along the axial direction of the guide gear rod, thereby realizing the function of axially adjusting the extrusion and expansion part. Therefore, in the process of using the extrusion and expansion device to perform extrusion and expansion operations, the axial position of the extrusion and expansion part can be individually adjusted according to the requirements of the construction site to meet the construction needs and help improve the construction efficiency.

[0039] (2) By providing two or more sets of extrusion and expansion components that can move along the axial direction of the guide gear rod, these extrusion and expansion components can be used to work in coordination with each other to improve the load-bearing effect, and can achieve the operation effect of extruding and expanding to form at least two branch disc cavities or star branch cavities in a single construction, thereby further improving the construction efficiency.

[0040] (3) A guide rail is arranged around the cylindrical extrusion base, and the extrusion arm mechanism is slidably arranged on the guide rail through an extrusion arm mounting seat; thus, when the soil is extruded, the circumferential position of the extrusion arm mechanism can be adjusted as needed to synchronously extrude the surrounding soil to form multiple star-branch cavities, thereby realizing the diversification of the extrusion structure.

[0041] The technical effects brought about or directly produced by other technical features of the utility model will be described in detail in the subsequent specific implementation method section. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0043] Figure 2 It is a schematic diagram of the three-dimensional structure of the extruded and expanded base in the utility model;

[0044] Figure 3 It is a three-dimensional cross-sectional view of the extruded and expanded base body of the utility model;

[0045] Figure 4 yes Figure 2 The enlarged view of point A in the middle;

[0046] Figure 5 yes Figure 3 The enlarged view of point B in the middle;

[0047] Figure 6 yes Figure 1 Enlarged view of point C in the middle;

[0048] Figure 7 yes Figure 6 The enlarged view of point D in the middle;

[0049] Marked in the figure: 1-guide gear rod, 101-first rack structure, 102-second rack structure, 2-extrusion component, 201-extrusion base, 2011-guide rail, 202-extrusion arm mechanism, 10-groove, 11-motor, 12-first transmission rod, 13-first gear, 14-first rotating block, 15-first fixed seat, 16-second gear, 17-second fixed seat, 18-second rotating block, 19-second transmission rod, 20-third gear, 21-fourth gear, 22-limiting block, 23-first electric push rod, 24-first fixed plate, 25-first extrusion arm, 26-second extrusion arm, 27-hinge block, 28-extrusion arm mounting seat, 29-second electric push rod, 30-second fixed plate. DETAILED DESCRIPTION

[0050] The utility model is further described below in conjunction with the accompanying drawings. The same reference numerals in the accompanying drawings represent components with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positions, and dimensional relationships based on the directions or position relationships shown in the accompanying drawings, and are only for the convenience of description, and do not indicate or imply that the referred device or component must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0052] The term "transmission connection" refers to: a connection method used to transmit power or motion in a mechanical system, for example: a connection method achieved through a transmission mechanism such as a coupling, a reducer, a gear assembly, a worm gear assembly, etc. The term "rotatably arranged" refers to a connection method between two parts so that one of the parts can rotate relative to the other part; this connection method is usually achieved using mechanical components such as bearings, sleeves, shaft hole fits, hinges, universal joints, etc. When the term "multiple" indicates a quantity, it usually refers to a quantity of three or more, for example: "multiple" usually refers to three or more. The expression "mainly composed of..." is interpreted as also containing structural components not mentioned in the sentence. The term "and / or" is only a kind of association relationship describing the associated objects, indicating that there can be three relationships, for example: A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The term "communication connection" refers to the communication between connected devices through the transmission interaction of signals, which can be divided into wired connection and wireless connection; wired connection is usually a connection such as cable and optical fiber; wireless connection is usually a connection such as radio communication, Bluetooth, infrared, NFC, etc. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0053] Combination Figures 1 to 5 As shown, the extrusion and expansion device for extrusion and expansion of branch plate pile construction comprises a guide gear rod 1 and an extrusion and expansion assembly 2;

[0054] The guide gear rod 1 is used to support and carry the extrusion and expansion assembly 2 and provide guidance for the movement of the extrusion and expansion assembly 2; the guide gear rod 1 is provided with a first rack structure 101 distributed along its axial direction, which is conducive to achieving accurate guidance and stable movement of the extrusion and expansion assembly 2;

[0055] The extrusion and expansion assembly 2 is used to extrude and expand the soil to form a branch cavity or a star branch cavity; the extrusion and expansion assembly 2 includes an extrusion and expansion base 201, an extrusion and expansion arm mechanism 202 arranged on the extrusion and expansion base 201, and a moving module;

[0056] The mobile module includes a motor 11 disposed on the extrusion and expansion base 201, a first transmission rod 12 transmission-connected to the power output end of the motor 11, and a first gear 13 disposed on the first transmission rod 12; the motor 11 is used to provide power for the movement of the extrusion and expansion assembly 2, which is conducive to realizing automatic control;

[0057] The extrusion and expansion component 2 is movably arranged on the guide gear rod 1 through the extrusion and expansion base 201, and the first gear 13 is meshed with the first rack structure 101; when the first gear 13 rotates, it can drive the extrusion and expansion component 2 to move along the distribution direction of the first rack structure 101.

[0058] When the extrusion and expansion device is in use, the first gear 13 on the first transmission rod 12 can be driven to rotate by the motor 11. Since the first gear 13 is meshed with the first rack structure 101, and the first rack structure 101 is distributed along the axial direction of the guide rack 1, the rotating first gear 13 can drive the extrusion and expansion component 2 to move axially along the guide rack 1, thereby realizing the function of axially adjusting the extrusion and expansion part; thereby, during the extrusion and expansion operation, the axial position of the extrusion and expansion part can be individually adjusted according to the requirements of the construction site to meet the construction needs.

[0059] For example Figure 1 As shown, in some embodiments of the present invention, a limit block 22 is provided on at least one end of the guide gear rod 1, and the limit block 22 is used to prevent the extrusion and expansion assembly 2 from moving beyond the travel. The limit block 22 has a limit portion that exceeds the radial direction of the guide gear rod 1, and when the extrusion and expansion assembly 2 moves to the limit portion, it can form a barrier to the extrusion and expansion assembly 2. The limit block 22 can be a variety of structures, such as: block, truncated cone, protrusion, etc.

[0060] In some embodiments of the present invention, the extrusion and expansion components 2 are at least two sets. For example: Figure 1 The extrusion and expansion device of the embodiment is provided with two sets of extrusion and expansion components 2. By providing two or more sets of extrusion and expansion components 2 that can move along the axial direction of the guide gear rod 1, these extrusion and expansion components 2 can be controlled to work in coordination, improve the load-bearing effect, and achieve the operation effect of extruding and expanding to form at least two branch disc cavities or star branch cavities in a single construction.

[0061] Combination Figure 1 and Figure 6 As shown, in some embodiments of the present invention, the extrusion and expansion assembly 2 includes at least two extrusion and expansion arm mechanisms 202 evenly distributed around the circumference of the extrusion and expansion base 201;

[0062] The squeezing and expanding arm mechanism 202 includes a squeezing and expanding arm mounting seat 28, a first electric push rod 23, a second electric push rod 29, a first squeezing and expanding arm 25 and a second squeezing and expanding arm 26;

[0063] The squeezing and expanding arm mechanism 202 is arranged on the side of the squeezing and expanding base 201 through the squeezing and expanding arm mounting seat 28, and the outer side surface of the squeezing and expanding arm mounting seat 28 is provided with an squeezing and expanding arm mounting groove;

[0064] The first electric push rod 23 and the second electric push rod 29 are both arranged in the installation slot of the squeezing and expanding arm and are spaced apart, and the pushing ends of the two are opposite to each other;

[0065] The first squeezing and expanding arm 25 and the second squeezing and expanding arm 26 are hinged at their proximal ends to form a squeezing and expanding portion of the squeezing and expanding assembly 2; the first squeezing and expanding arm 25 and the second squeezing and expanding arm 26 are hinged at their distal ends to the pushing end of the first electric push rod 23 and the pushing end of the second electric push rod 29 respectively;

[0066] When the pushing end of the first electric push rod 23 and / or the second electric push rod 29 is extended, the first extrusion arm 25 and the second extrusion arm 26 can be driven to close to each other, so that the extrusion part moves in a direction away from the extrusion base 201 to perform the extrusion operation.

[0067] Among them, two or more evenly distributed squeezing and expanding arm mechanisms 202 can ensure the quality and stability of squeezing and expanding, and the specific number of squeezing and expanding arm mechanisms 202 can be determined according to construction requirements such as squeezing and expanding range and squeezing and expanding effect. The first electric push rod 23 and / or the second electric push rod 29 are used for driving, so that automatic control can be realized, and the flexibility and accuracy of squeezing and expanding operation can be improved. The proximal end and the distal end of the first squeezing and expanding arm 25 and the second squeezing and expanding arm 26 are determined by the relative position relationship between the two, which is not absolute. The squeezing and expanding arm mechanism 202 can be conveniently installed and fixed by the squeezing and expanding arm mounting seat 28, and other parts of the squeezing and expanding arm mechanism 202 can also be installed, stored and protected by the squeezing and expanding arm mounting groove, which is conducive to improving the service life of the squeezing and expanding arm mechanism 202.

[0068] Combination Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the proximal ends of the first squeezing and expanding arm 25 and the second squeezing and expanding arm 26 are hingedly connected to each other through a hinge block 27, which is conducive to adapting to the complex conditions of the soil and performing effective squeezing and expanding operations. The hinge block 27 usually has two hinge shafts, which are rotatably connected to the proximal ends of the first squeezing and expanding arm 25 and the proximal ends of the second squeezing and expanding arm 26 respectively.

[0069] In order to facilitate the connection between the electric push rod and the expansion arm and ensure the flexibility and accuracy of the drive, Figure 6 and Figure 7 As shown, in some embodiments of the utility model, the pushing end of the first electric push rod 23 and the pushing end of the second electric push rod 29 are respectively provided with a first fixed plate 24 and a second fixed plate 30; the distal ends of the first squeezing and expanding arm 25 and the second squeezing and expanding arm 26 are respectively hinged to the first fixed plate 24 and the second fixed plate 30.

[0070] In some embodiments of the present invention, a power supply for supplying electric energy to each electric component is provided on the extrusion and expansion assembly 2, and / or a power line for supplying electric energy to each electric component is provided on the guide gear rod 1; the power line can generally be laid through a wiring drag chain so as to be electrically connected to the movable extrusion and expansion assembly 2. The electric component is a component that requires electric energy as a driving energy source, such as: the motor 11, the first electric push rod 23, the second electric push rod 29, etc.

[0071] In some embodiments of the present invention, the extrusion and expansion device further comprises a control system, which is respectively connected to each electric component for controlling the extrusion and expansion operation. The control system can be of various types, such as a local controller, a remote control terminal, etc.

[0072] Combination Figures 2 to 5 As shown, in some embodiments of the present invention, a groove 10 is provided in the extrusion and expansion base 201, which axially penetrates the base 201; the mobile module is arranged in the groove 10; and the guide gear rod 1 is arranged through the groove 10. The groove 10 is used to provide an installation space for the mobile module to realize the internal arrangement of the mobile module; the groove 10 is also used to provide a space position for the guide gear rod 1 to move relatively, so that the guide gear rod 1 can provide guidance for the movement of the extrusion and expansion assembly 2. Such an arrangement makes the structural layout of the extrusion and expansion device very reasonable, which is conducive to saving space and improving its compactness.

[0073] Combination Figure 2 , Figure 3 and Figure 6 As shown, in some embodiments of the present invention, the extrusion and expansion base 201 is cylindrical; a guide rail 2011 is provided on the outer wall of the extrusion and expansion base 201 and surrounds the base 201; the extrusion and expansion arm mechanism 202 is slidably arranged on the guide rail 2011 through the extrusion and expansion arm mounting seat 28. In this way, when the soil is extruded and expanded, the circumferential position of the extrusion and expansion arm mechanism 202 can be adjusted as needed to synchronously extrude and expand the surrounding soil to form multiple star-branch cavities, thereby realizing the diversification of the extrusion and expansion structure.

[0074] On the basis of the above, in order to realize the function of automatically adjusting the circumferential position of the squeezing and expanding arm mechanism 202, a circumferential driving mechanism (not shown in the figure) is usually provided on the squeezing and expanding arm mechanism 202, which is used to drive the squeezing and expanding arm mechanism 202 to slide along the guide rail 2011. The circumferential driving mechanism can be of various types, for example, including a gear ring arranged on the squeezing and expanding base 201, a circumferential transmission gear meshing with the gear ring, and an axial driving motor provided on the squeezing and expanding arm mechanism 202 and connected to the circumferential transmission gear.

[0075] In some embodiments of the utility model, the guide gear rod 1 is prismatic and is coaxially arranged with the extrusion base 201. The prismatic guide gear rod 1 can provide greater rigidity and strength, which is conducive to improving the support, load-bearing and guiding effects. The guide gear rod 1 is coaxially arranged with the extrusion base 201 to ensure that the movement trajectory of the extrusion assembly 2 coincides with the axis of the extrusion base 201 and the guide gear rod 1, thereby achieving the accuracy and stability of the extrusion operation.

[0076] Combination Figure 1 , Figure 2 and Figure 4As shown, in some embodiments of the utility model, the guide rack rod 1 is in the shape of a quadrangular prism, and the first rack structure 101 and the second rack structure 102 are arranged on the two opposite side walls respectively; the arrangement direction of the second rack structure 102 is the same as that of the first rack structure 101; the mobile module also includes a second gear 16 arranged on the first transmission rod 12, a second transmission rod 19 rotatably arranged in the groove 10, a third gear 20 arranged on the second transmission rod 19 and meshing with the second gear 16, and a fourth gear 21 arranged on the second transmission rod 19 and meshing with the second rack structure 102. The double rack structure composed of the first rack structure 101 and the second rack structure 102 can provide a larger guiding area, improve the load-bearing and guiding effect of the extrusion and expansion assembly 2, improve the stability of the extrusion and expansion device operation, and extend the service life.

[0077] Combination Figures 2 to 5 As shown, in some embodiments of the present invention, at least one end of the first transmission rod 12 is rotatably disposed on the groove wall of the groove 10 through a first rod seat assembly; the first rod seat assembly includes a first fixed seat 15 disposed on the groove wall of the groove 10, and a first rotating block 14 movably disposed in the seat cavity of the first fixed seat 15; the end of the first transmission rod 12 penetrates into the seat cavity of the first fixed seat 15 and is connected to the first rotating block 14;

[0078] And / or, at least one end of the second transmission rod 19 is rotatably set on the groove wall of the groove 10 through a second rod seat assembly; the second rod seat assembly includes a second fixed seat 17 set on the groove wall of the groove 10, and a second rotating block 18 movably set in the seat cavity of the second fixed seat 17; the end of the second transmission rod 19 penetrates into the seat cavity of the second fixed seat 17 and is connected to the second rotating block 18.

[0079] The first rod seat assembly and the second rod seat assembly can provide rotation support for the first transmission rod 12 and the second transmission rod 19 to ensure the stability of their rotation. The first rotating block 14 and the second rotating block 18 can reduce the friction between the first transmission rod 12 and the second transmission rod 19 and the fixed seat, thereby reducing wear. The first fixed seat 15 and the second fixed seat 17 are generally fixedly arranged on the groove wall of the groove 10 by welding, screw connection, etc.

[0080] When the extrusion and expansion device adjusts the axial position of the extrusion and expansion part, the motor 11 is controlled to start first. When the motor 11 is started, it will drive the first transmission rod 12 to rotate, and the first transmission rod 12 will drive the first gear 13 and the second gear 16 to rotate synchronously, the second gear 16 will drive the third gear 20 to rotate synchronously, the third gear 20 will drive the second transmission rod 19 to rotate synchronously, and the second transmission rod 19 will drive the fourth gear 21 to rotate synchronously; the synchronously rotating first gear 13 and fourth gear 21 move along the first rack structure 101 and the second rack structure 102 respectively to drive the extrusion and expansion component 2 to move axially relative to the guide gear rod 1; after the extrusion and expansion component 2 moves into place, the motor 11 can be controlled to stop.

[0081] When the extrusion and expansion device performs the extrusion and expansion operation, the pushing ends of the first electric push rod 23 and / or the second electric push rod 29 of the extrusion and expansion component 2 are controlled to extend to drive the first extrusion and expansion arm 25 and the second extrusion and expansion arm 26 to close together, so that the extrusion and expansion part moves in a direction away from the extrusion and expansion base 201 to perform the extrusion and expansion operation. After the extrusion and expansion is completed, the extrusion and expansion arm mechanism 202 can be controlled to reset.

[0082] When it is necessary to extrude and expand a star-branch cavity, the first extrusion and expansion arm 25 and the second extrusion and expansion arm 26 are controlled to close together, and then the soil layer is extruded and expanded through the extrusion and expansion part to form a group of star-branch cavities; when it is necessary to extrude and expand two or more groups of star-branch cavities, each extrusion and expansion arm mechanism 202 can be controlled to rotate synchronously by a certain angle on the basis of the above, and then the soil layer is extruded and expanded to form another group of star-branch cavities; by controlling in the same way, multiple groups of star-branch cavities can be formed, such as forming a six-branch or multi-star-branch structure.

[0083] When it is necessary to extrude and expand a branch disc cavity, it can be controlled by the method of forming a multi-star branch structure to form a branch disc cavity; or, after the multi-star branch structure is formed, the extrusion and expansion arm mechanism 202 is controlled to rotate the star branch angle between two adjacent groups of star branch cavities or continue to rotate to extrude and expand to form a branch disc cavity.

[0084] The present invention is described in detail in detail and is not intended to be limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terms used herein are selected to best explain the principles, practical applications, or technological advances of the embodiments, or to enable other persons skilled in the art to understand the embodiments disclosed herein, compared to the technology found on the market.

[0085] It should be understood that, for the sake of clarity, certain features of the present invention described in the context of separate embodiments may also be provided in combination in a single embodiment. Conversely, for the sake of brevity, various features of the present invention described in the context of a single embodiment may also be provided individually or in any suitable sub-combination, or in any other described embodiment of the present invention where appropriate. Certain features described in the context of various embodiments are not considered essential features of those embodiments unless the embodiments do not work without those features.

[0086] All publications, patents, and patent applications mentioned herein are incorporated herein by reference in their entirety, to the extent that each individual publication, patent, or patent application is specifically and individually indicated as being incorporated herein by reference. In addition, the citation or identification of any reference herein should not be construed as an admission that such reference can serve as prior art for the present utility model. Insofar as section headings are used, section headings should not be construed as necessary limitations.

Claims

1. A device for squeezing and expanding branch piles for construction, comprising a squeezing and expanding assembly (2); The extrusion expansion component (2) comprises an extrusion expansion base (201) and an extrusion expansion arm mechanism (202) arranged on the extrusion expansion base (201); Features: It also comprises a guide gear rod (1), wherein the guide gear rod (1) is provided with a first gear rack structure (101) distributed along its axial direction; The extrusion and expansion assembly (2) further comprises a moving module, wherein the moving module comprises a motor (11) arranged on the extrusion and expansion base (201), a first transmission rod (12) transmission-connected to a power output end of the motor (11), and a first gear (13) arranged on the first transmission rod (12); The extrusion and expansion component (2) is movably arranged on the guide gear rod (1) through an extrusion and expansion base (201), and the first gear (13) is meshed with the first rack structure (101); when the first gear (13) rotates, it can drive the extrusion and expansion component (2) to move along the distribution direction of the first rack structure (101).

2. The device for construction of squeezed branch piles according to claim 1, characterized in that: A limit block (22) is provided on at least one end of the guide gear rod (1), and the limit block (22) is used to prevent the extrusion and expansion component (2) from moving beyond the travel range.

3. The device for extruding and expanding branch piles according to claim 1, characterized in that: The extrusion and expansion components (2) are at least two sets.

4. The device for extruding and expanding branch piles according to claim 1, characterized in that: The extrusion and expansion assembly (2) comprises at least two extrusion and expansion arm mechanisms (202) evenly distributed around the circumference of the extrusion and expansion base (201); The squeezing and expanding arm mechanism (202) comprises a squeezing and expanding arm mounting seat (28), a first electric push rod (23), a second electric push rod (29), a first squeezing and expanding arm (25) and a second squeezing and expanding arm (26); The extrusion arm mechanism (202) is arranged on the side of the extrusion base (201) through an extrusion arm mounting seat (28), and an extrusion arm mounting groove is provided on the outer side surface of the extrusion arm mounting seat (28); The first electric push rod (23) and the second electric push rod (29) are both arranged in the installation slot of the squeezing and expanding arm and are spaced apart, and the pushing ends of the two are opposite to each other; The proximal ends of the first squeezing and expanding arm (25) and the second squeezing and expanding arm (26) are hinged together to form an squeezing and expanding portion of the squeezing and expanding assembly (2); the distal ends of the first squeezing and expanding arm (25) and the second squeezing and expanding arm (26) are hinged to the pushing end of the first electric push rod (23) and the pushing end of the second electric push rod (29), respectively; When the pushing end of the first electric push rod (23) and / or the second electric push rod (29) is extended, the first extrusion arm (25) and the second extrusion arm (26) can be driven to close together, so that the extrusion part moves in a direction away from the extrusion base (201) to perform the extrusion operation.

5. The device for extruding and expanding branch piles according to claim 4, characterized in that: The proximal ends of the first squeezing and expanding arm (25) and the second squeezing and expanding arm (26) are hingedly connected to each other via a hinge block (27); The pushing end of the first electric push rod (23) and the pushing end of the second electric push rod (29) are respectively provided with a first fixing plate (24) and a second fixing plate (30); The distal ends of the first squeezing and expanding arm (25) and the second squeezing and expanding arm (26) are respectively hinged to the first fixing plate (24) and the second fixing plate (30).

6. The device for construction of squeezed branch piles according to any one of claims 1 to 5, characterized in that: The extrusion-expanded base (201) is provided with a groove (10) axially penetrating the base (201); The movable module is arranged in the groove (10); The guide gear rod (1) is arranged through the groove (10).

7. The device for construction of squeezed branch piles according to claim 6, characterized in that: The extruded and expanded base (201) is cylindrical; A guide rail (2011) is provided on the outer side wall of the extruded and expanded base (201) and surrounds the base; The squeezing and expanding arm mechanism (202) is slidably arranged on the guide rail (2011) via the squeezing and expanding arm mounting seat (28).

8. The device for construction of squeezed branch piles according to claim 6, characterized in that: The guide gear rod (1) is prism-shaped and is coaxially arranged with the extruded base (201).

9. The device for construction of squeezed branch piles according to claim 8, characterized in that: The guide rack (1) is in the shape of a quadrangular prism, and a first rack structure (101) and a second rack structure (102) are arranged on two opposite side walls thereof respectively; the arrangement direction of the second rack structure (102) is the same as that of the first rack structure (101); The mobile module also includes a second gear (16) arranged on the first transmission rod (12), a second transmission rod (19) rotatably arranged in the groove (10), a third gear (20) arranged on the second transmission rod (19) and meshing with the second gear (16), and a fourth gear (21) arranged on the second transmission rod (19) and meshing with the second rack structure (102).

10. The device for construction of squeezed branch piles according to claim 9, characterized in that: At least one end of the first transmission rod (12) is rotatably arranged on the groove wall of the groove (10) through a first rod seat assembly; the first rod seat assembly comprises a first fixed seat (15) arranged on the groove wall of the groove (10), and a first rotating block (14) movably arranged in the seat cavity of the first fixed seat (15); the end of the first transmission rod (12) penetrates into the seat cavity of the first fixed seat (15) and is connected to the first rotating block (14); And / or, at least one end of the second transmission rod (19) is rotatably arranged on the groove wall of the groove (10) through a second rod seat assembly; the second rod seat assembly comprises a second fixed seat (17) arranged on the groove wall of the groove (10), and a second rotating block (18) movably arranged in the seat cavity of the second fixed seat (17); the end of the second transmission rod (19) penetrates into the seat cavity of the second fixed seat (17) and is connected to the second rotating block (18).

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