An auxiliary tool for manufacturing a steel reinforcement cage of a manual hole digging pile

Abstract

The utility model discloses a kind of artificial hole digging pile reinforcement cage manufacturing auxiliary tools, it is related to reinforcement cage manufacturing technical field.The utility model includes base, its top relative sliding is equipped with two groups of half ring plates, first drive assembly is equipped on base, and two groups of half ring plates relative sliding are driven, multiple movable rod bodies are slidably arranged on two groups of half ring plates, and the centering clamp plate that can be clamped to inner ring rib is fixedly installed on movable rod body, adjusting assembly for driving multiple movable rod bodies on two half ring plates to move is equipped on two half ring plates, two fixed rings, which are fixedly installed on two groups of half ring plates by multiple fixed rods, and multiple clamping assemblies for clamping main reinforcement along the circumference direction of fixed ring are provided on fixed ring.The utility model can accurately control the relative position of inner ring rib and main reinforcement by the cooperation of multiple components, ensure the dimensional accuracy and shape accuracy of reinforcement cage, improve the quality and manufacturing efficiency of reinforcement cage.

Description

Technical Field

[0001] This utility model belongs to the field of steel cage manufacturing, specifically, it relates to an auxiliary tool for manufacturing steel cages for manually excavated piles. Background Technology

[0002] Manually excavated bored piles are pile foundations formed by manually excavating holes, cleaning the bottom of the holes, installing steel cages, and pouring concrete. They have advantages such as simple construction process, low cost, easy and intuitive quality control, small site occupation, full-scale deployment, fast construction pace, and low pollution to the surrounding environment. In the construction of pile foundations with enlarged heads, they can also make up for the shortcomings of mechanical enlargement head operations. Therefore, they have been widely used in domestic foundation engineering. However, in the current steel cage fabrication, the welding of the main bars and inner ring bars is entirely done manually. It requires multiple people to cooperate in welding the main bars one by one. There is a lot of auxiliary work, which is time-consuming and labor-intensive. Moreover, it is difficult to guarantee the spacing of the main bars, resulting in poor quality and easy to cause unqualified products, thus affecting the construction progress.

[0003] Chinese patent publication number CN219805310U discloses a rebar positioning tool for a steel cage. This device can clamp one rebar with each rebar clamp, and multiple rebar clamps are evenly distributed along the circumference of the installation ring frame, thereby clamping and fixing all the main rebars of the steel cage. In this way, only multiple people are needed to cooperate when installing the rebars. When welding the main rebars to the inner ring rebars, no auxiliary personnel are needed to support the main rebars, saving labor costs. Moreover, multiple people can weld multiple main rebars and inner ring rebars at the same time, improving welding efficiency. However, when positioning the inner ring rebars, it is not easy to achieve concentric positioning between the inner ring rebars and the installation ring frame, which requires frequent adjustments to the orientation when installing the main rebars, affecting the overall efficiency.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an auxiliary tool for the fabrication of steel cages for manually excavated piles, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An auxiliary tool for fabricating rebar cages for manually excavated piles includes: a base with two sets of semi-annular plates slidably disposed on its top; a first driving assembly on the base to drive the two sets of semi-annular plates to slide relative to each other; the two semi-annular plates can form a circular structure when they are in contact; multiple movable rods are slidably disposed along the circumference of each set of semi-annular plates; a centering clamp for clamping the inner ring reinforcement is fixedly installed on each movable rod; and an adjustment assembly is provided on each of the two semi-annular plates to drive the multiple movable rods thereon to move.

[0008] Two fixing rings are respectively fixedly installed on the two sets of semi-annular plates by multiple fixing rods. The fixing rings are provided with multiple sets of clamping components along their circumference to clamp the main reinforcement.

[0009] Optionally, the movable rod is a rack, and the adjusting assembly includes:

[0010] A fixing plate is fixedly mounted on the semi-annular plate, and a rotating shaft is rotatably connected to the fixing plate.

[0011] The external gear is a semi-annular structure coaxial with the semi-annular plate. The external gear is slidably disposed on the semi-annular plate. Two drive gears are sleeved and fixedly installed at both ends of the rotating shaft. The two drive gears mesh with the movable rod and the external gear respectively.

[0012] Optionally, a first slider is fixedly installed on the external gear. The first slider is an arc-shaped structure coaxial with the external gear, and a first groove is provided on the semi-annular plate for the first slider to slide.

[0013] Optionally, the length of the first groove is greater than the length of the first slider.

[0014] Optionally, the semi-annular plate has a plurality of positioning holes recessed relative to the external gear, the plurality of positioning holes being spaced apart along the circumference of the semi-annular plate, and the external gear having a positioning bolt threaded through and connected to the positioning holes.

[0015] Optionally, the clamping assembly includes:

[0016] A fixing block, the bottom of which is fixedly mounted with a mounting plate that is detachably connected to the fixing ring, and a threaded rod is threaded through and threadedly connected to the fixing block;

[0017] An auxiliary plate is rotatably mounted on the threaded rod. A guide rod that is fixedly connected to the auxiliary plate is passed through and movably connected to the fixed block. Two clamping plates are slidably mounted on the auxiliary plate. A second driving assembly is provided on the auxiliary plate to drive the two clamping plates to slide relative to each other.

[0018] Optionally, the second driving component includes:

[0019] The second double-ended screw is rotatably mounted on the auxiliary plate;

[0020] Two third sliders are provided, with their first ends sleeved on each other and threadedly connected to the two ends of the second double-ended screw. The second ends of the two third sliders are respectively fixedly connected to the two clamping plates. The two third sliders are slidably disposed on the auxiliary plate, which is provided with a third sliding groove for the third sliders to slide.

[0021] Optionally, the end of the guide rod opposite to the auxiliary plate is fitted with a spring that abuts against the fixing block.

[0022] Optionally, the first driving component includes:

[0023] A first double-ended screw is rotatably mounted on the base, and a motor for driving the first double-ended screw to rotate is fixedly mounted on the base;

[0024] Two second sliders are fitted together at their first ends and threadedly connected to both ends of the first double-ended screw. The second ends of the two second sliders are respectively fixedly connected to the two sets of semi-annular plates. The base is provided with a second sliding groove for the two second sliders to slide.

[0025] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0026] 1. By setting up clamping components and adjusting components, and through the cooperation of adjusting components, movable rods, centering clamps, and clamping components, the relative positions of inner ring bars and main bars can be precisely controlled, avoiding problems such as uneven bar spacing and overall shape deviation of the steel cage under traditional manual positioning methods. This ensures the dimensional and shape accuracy of the steel cage, improves the quality and manufacturing efficiency of the steel cage, and can also adapt to the manufacturing of inner ring bars and main bars of different diameters, thus improving the versatility of the device.

[0027] 2. With the second drive component and threaded rod, the height and position of the main reinforcement can be adjusted and clamped by rotating the threaded rod and the second double-ended screw. The operation is simple and easy to understand, without the need for complicated equipment or professional skills. Construction personnel can quickly get started, which greatly shortens the time for installing and fixing the main reinforcement and improves the efficiency of steel cage production. The mounting plate and the fixing ring are detachably connected, which facilitates the installation, disassembly and replacement of the clamping components.

[0028] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This utility model Figure 1A structural diagram from another perspective;

[0032] Figure 3 This is a side view of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the two semi-annular plates of this utility model when they are far apart;

[0034] Figure 5 This is a schematic diagram of the structure of the first driving component of this utility model;

[0035] Figure 6 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the first slider and the first groove of this utility model;

[0037] Figure 8 This utility model Figure 7 Enlarged structural diagram at point A;

[0038] Figure 9 This is a schematic diagram of the clamping assembly of this utility model;

[0039] Figure 10 This is a schematic diagram of the structure of the second drive component of this utility model.

[0040] The attached diagram lists the components represented by each number as follows:

[0041] 1. Base; 2. Semi-circular plate; 3. Centering clamp; 4. First drive assembly; 41. Second slider; 42. First double-ended screw; 43. Motor; 44. Second slide groove; 5. Fixing ring; 6. Fixing rod; 7. Handle; 8. Adjustment assembly; 81. External gear; 82. Drive gear; 83. Rotating shaft; 84. Fixing plate; 9. Clamping assembly; 91. Fixing block; 92. Guide rod; 93. Mounting plate; 94. Threaded rod; 95. Clamping plate; 96. Auxiliary plate; 97. Second drive assembly; 971. Third slider; 972. Second double-ended screw; 973. Third slide groove; 10. Movable rod; 11. Insert block; 12. Slot; 13. Positioning bolt; 14. Positioning hole; 15. First slider; 16. First slide groove; 17. Spring.

[0042] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings.

[0044] Please see Figure 1-10 As shown, this embodiment provides an auxiliary tool for fabricating manually excavated pile reinforcement cages, including a base 1 with two sets of semi-annular plates 2 slidably mounted on its top. The base 1 is provided with a first driving component 4 that drives the two sets of semi-annular plates 2 to slide relative to each other. When the two semi-annular plates 2 are in contact, they can form a circular structure. Multiple movable rods 10 are slidably mounted through the two sets of semi-annular plates 2 along their circumference. Centering clamps 3 that can clamp the inner ring reinforcement are fixedly installed on the movable rods 10. Adjustment components 8 that drive the multiple movable rods 10 on the two sets of semi-annular plates 2 to move are provided on the two sets of semi-annular plates 2. Two fixed rings 5 ​​are fixedly mounted on the two sets of semi-annular plates 2 by multiple fixed rods 6. Multiple clamping components 9 that can clamp the main reinforcement are provided on the fixed rings 5 ​​along their circumference.

[0045] Specifically, in this embodiment, the centering clamp 3 is an arc-shaped structure coaxial with the semi-annular plate 2. The end of the centering clamp 3 opposite to the movable rod 10 has a recessed groove that can fit against the outer wall of the inner ring rib. At the same time, the fixing ring 5 is an arc-shaped structure coaxial with the semi-annular plate 2. When the two fixing rings 5 ​​are fitted together, they can form a circular ring structure. Multiple sets of clamping components 9 are detachably mounted on the fixing rings 5. There is a gap between the clamping components 9 and the base 1 and the semi-annular plate 2. In actual manufacturing, the inner ring rib is a circular ring structure. Multiple sets of this device are arranged at intervals, and the base 1 is placed stably on the work site. The base is secured with bolts. An external control device activates the first drive assembly 4, which drives two sets of semi-annular plates 2 to slide relative to each other on the top of the base 1, causing them to fit together to form a circular structure. The inner ring rib is placed within this circular structure. The adjustment assembly 8 on the two semi-annular plates 2 is then operated, driving multiple movable rods 10 to slide towards the axis of the semi-annular plates 2. These movable rods 10 move synchronously with the centering clamp 3 until the centering clamp 3 stably holds the inner ring rib, ensuring its stability during manufacturing. Maintaining a fixed position without deviation, the inner ring reinforcement is coaxially aligned with the two semi-circular plates 2. Then, using multiple sets of clamping components 9 arranged along the circumference of the fixing ring 5, the main reinforcement is positioned and clamped, ensuring the relative position of the main reinforcement and the inner ring reinforcement meets the design requirements of the steel cage. This completes the reinforcement positioning preparation work before steel cage fabrication. After reinforcement positioning is completed, construction workers can use this auxiliary tool to weld, tie, and connect the main reinforcement and inner ring reinforcement, completing the steel cage fabrication. After the inner ring reinforcement and main reinforcement are installed, the clamping components 8 and 9 can be used to release the reinforcement. The cage is positioned and the two sets of semi-circular plates 2 are moved apart by the first drive component 4, which facilitates the handling of the steel cage. The overall structure is simple to operate. By adjusting the component 8, the movable rod 10, the centering clamp 3, and the clamping component 9, the relative position of the inner ring reinforcement and the main reinforcement can be precisely controlled. This avoids problems such as uneven reinforcement spacing and overall shape deviation of the steel cage under the traditional manual positioning method, ensuring the dimensional and shape accuracy of the steel cage, improving the quality and production efficiency of the steel cage, and also adapting to the production of inner ring reinforcement and main reinforcement of different diameters, thus improving the versatility of the device.

[0046] It should be noted that the clamping component 9 is a clamping mechanism that can fix the main reinforcement bar, for example, the steel bar clamp with patent publication number CN219805310U can be referred to.

[0047] In this embodiment, as Figures 1 to 8As shown, the movable rod 10 is a rack and pinion. The adjusting assembly 8 includes a fixed plate 84, which is fixedly mounted on the semi-annular plate 2. A rotating shaft 83 and an external gear 81 are rotatably connected to the fixed plate 84. The external gear 81 is a semi-annular structure coaxial with the semi-annular plate 2 and is slidably mounted on the semi-annular plate 2. Two drive gears 82 are sleeved and fixedly mounted at both ends of the rotating shaft 83. The two drive gears 82 mesh with the movable rod 10 and the external gear 81, respectively. A first slider 15 is fixedly mounted on the external gear 81. The first slider 15 is an arc-shaped structure coaxial with the external gear 81. The semi-annular plate 2 is provided with a first groove 16 for the first slider 15 to slide. The length of 16 is greater than the length of the first slider 15. Multiple positioning holes 14 are recessed on the semi-annular plate 2 relative to the external gear 81. These positioning holes 14 are spaced apart along the circumference of the semi-annular plate 2. Positioning bolts 13 are threaded through and threaded onto the external gear 81 relative to the positioning holes 14. Specifically, in this embodiment, external gears 81 are slidably connected to both semi-annular plates 2. A handle 7 is fixedly installed on each external gear 81. The external gear 81 is an arc-shaped structure coaxial with the semi-annular plate 2. A plug 11 is fixedly installed on one external gear 81, and a slot 12 is provided on the other external gear 81 for the plug 11 to be inserted, facilitating the insertion of the two external gears. The connection of gears 81 facilitates subsequent synchronous rotation. Simultaneously, multiple movable rods 10 (i.e., racks) are spaced and slidably arranged through each semi-annular plate 2. When two sets of semi-annular plates 2 are in contact, the multiple movable rods 10 are equidistantly spaced on the two sets of semi-annular plates 2. The fixed plate 84 is provided in equal numbers with the movable rods 10. When it is necessary to adjust the clamping position of the centering clamp 3 on the inner ring rib, the inner ring rib is placed between multiple centering clamps 3. The handle 7 drives the two external gears 81 to rotate. The external gears 81 drive one of the driving gears 82 to rotate, and the other driving gear 82 drives the movable rods 10 to slide relative to the inner ring rib, thereby allowing the movable rods 10 to slide relative to the inner ring rib. The centering clamp 3 moves synchronously with the 0, achieving centering of the inner ring reinforcement and ensuring the coaxial setting of the inner ring reinforcement with the two semi-annular plates 2. After accurately clamping the inner ring reinforcement, the corresponding positioning hole 14 on the semi-annular plate 2 is found according to the current position of the external gear 81. The positioning bolt 13 on the external gear 81 is screwed into the positioning hole 14, fixing the external gear 81 on the semi-annular plate 2, thereby locking the position of the drive gear 82 and the movable rod 10. This prevents the centering clamp 3 from shifting due to external forces or other factors during the fabrication of the steel cage, ensuring that the inner ring reinforcement is always in a stable clamping state. The overall structure has simple operation steps and achieves high-precision transmission adjustment.

[0048] In this embodiment, as Figures 1 to 10As shown, the clamping assembly 9 includes a fixing block 91, the bottom of which is fixedly mounted with a mounting plate 93 that is detachably connected to the fixing ring 5. A threaded rod 94 is threaded through and connected to the fixing block 91. An auxiliary plate 96 is rotatably mounted on the threaded rod 94. A guide rod 92 is movably connected to the fixing block 91 and fixedly connected to the auxiliary plate 96. Two clamping plates 95 are slidably mounted on the auxiliary plate 96. A second driving assembly 97 is provided on the auxiliary plate 96 to drive the two clamping plates 95 to slide relative to each other. The second driving assembly 97 includes a second double-ended screw 972, which is rotatably mounted on the auxiliary plate 96. Two third sliders 971 have their first ends fitted onto each other and threadedly connected to the two ends of the second double-ended screw 972. The second ends of the two third sliders 971 are respectively Two clamping plates 95 are fixedly connected, and two third sliders 971 are slidably mounted on an auxiliary plate 96. The auxiliary plate 96 is provided with a third sliding groove 973 for the third sliders 971 to slide. A spring 17 is sleeved on the end of the guide rod 92 away from the auxiliary plate 96, which abuts against the fixing block 91. Specifically, in this embodiment, the structure of the mounting plate 93 fixedly mounted on the fixing ring 5 can refer to the steel bar clamp with patent publication number CN219805310U. When the clamping assembly 9 is mounted on the fixing ring 5, the mounting plate 93 and the fixing ring 5 are fixedly mounted by a detachable connection (such as bolt connection), so that the fixing block 91 is stably mounted on the fixing ring 5. When installing the main reinforcement, by rotating the threaded rod 94, the threaded rod 94 and the fixing block 91 are connected by a screw thread. In the threaded connection, under the action of the threaded drive, the auxiliary plate 96 moves relative to the fixed block 91 and is adjusted to a suitable position for installing the main reinforcement. The guide rod 92 provides guidance for the movement of the auxiliary plate 96, ensuring its smooth lifting and lowering and avoiding tilting or offset. The main reinforcement is placed between the two clamping plates 95, and then the second double-ended screw 972 is rotated. The threads at both ends of the second double-ended screw 972 are in opposite directions. The two third sliders 971 are threadedly connected to both ends of the second double-ended screw 972. When the second double-ended screw 972 rotates, the two third sliders 971 will slide relative to each other, causing the two clamping plates 95 fixedly connected to it to move relative to each other and initially approach the main reinforcement. Continue to rotate the second double-ended screw 972 so that the two clamping plates 95 gradually clamp the main reinforcement until the main reinforcement is firmly fixed. During this process, the third slider 971 slides within the third groove 973 of the auxiliary plate 96, ensuring the stability and accuracy of the movement of the clamping plate 95. The spring 17 acts as a buffer and assists in resetting during the up-and-down movement of the auxiliary plate 96. When it is necessary to release the clamping plate 95, the elastic force of the spring 17 can help the auxiliary plate 96 quickly return to its initial position. The height adjustment and clamping operation of the main reinforcement can be completed by rotating the threaded rod 94 and the second double-ended screw 972. The operation is simple and easy to understand, requiring no complicated equipment or professional skills. Construction personnel can quickly get started, which greatly shortens the installation and fixing time of the main reinforcement and improves the efficiency of the steel cage production. The mounting plate 93 and the fixing ring 5 are detachably connected, which facilitates the installation, disassembly and replacement of the clamping component 9.

[0049] In this embodiment, as Figures 1 to 6 As shown, the first drive assembly 4 includes a first double-ended screw 42, which is rotatably mounted on the base 1. A motor 43 for driving the first double-ended screw 42 to rotate is fixedly mounted on the base 1. Two second sliders 41 have their first ends sleeved on each other and threadedly connected to the two ends of the first double-ended screw 42. The second ends of the two second sliders 41 are respectively fixedly connected to two sets of semi-annular plates 2. The base 1 is provided with a second slide groove 44 for the two second sliders 41 to slide.

[0050] Working principle:

[0051] In actual production, the inner ring rib is a circular ring structure. Multiple sets of this device are arranged at intervals, and the base 1 is placed stably on the work site and fixed with fixing bolts. The first drive assembly 4 is started by the external control device. The first drive assembly 4 drives two sets of semi-circular plates 2 to slide relative to each other on the top of the base 1, so that the two semi-circular plates 2 fit together to form a circular ring structure. The inner ring rib is placed in the circular ring structure formed by the two semi-circular plates 2 and placed between multiple centering clamps 3. The handle 7 drives two external gears 81 to rotate. The external gears 81 drive one of the drive gears 82 to rotate. The other drive gear 82 drives the movable rod 10 to slide relative to the inner ring rib, so that the movable rod 10 and the centering clamps 3 move synchronously. The centering operation of the inner ring reinforcement is now performed to ensure that the inner ring reinforcement is coaxially aligned with the two semi-annular plates 2. After accurately clamping the inner ring reinforcement, the corresponding positioning hole 14 on the semi-annular plate 2 is located according to the current position of the outer gear 81. The positioning bolt 13 on the outer gear 81 is screwed into the positioning hole 14, fixing the outer gear 81 on the semi-annular plate 2, thereby locking the position of the drive gear 82 and the movable rod 10. At this time, the inner ring reinforcement is coaxially aligned with the two semi-annular plates 2. Then, by rotating the threaded rod 94, since the threaded rod 94 is threadedly connected to the fixed block 91, the auxiliary plate 96 moves relative to the fixed block 91 under the action of threaded transmission, adjusting to a suitable position for installing the main reinforcement. The guide rod 92 provides guidance for the movement of the auxiliary plate 96, ensuring its smooth lifting and lowering. To prevent tilting or shifting, place the main reinforcement bar between the two clamping plates 95, then rotate the second double-ended screw 972. The threads at both ends of the second double-ended screw 972 are in opposite directions. Two third sliders 971 are threadedly connected to both ends of the second double-ended screw 972. As the second double-ended screw 972 rotates, the two third sliders 971 will slide relative to each other, causing the two clamping plates 95 fixedly connected to it to move relative to each other, initially approaching the main reinforcement bar. Continue rotating the second double-ended screw 972 to gradually clamp the main reinforcement bar with the two clamping plates 95 until the main reinforcement bar is firmly fixed, ensuring that the relative position of the main reinforcement bar and the inner ring reinforcement meets the design requirements of the reinforcement cage. This completes the reinforcement bar positioning preparation work before reinforcement cage fabrication. After the reinforcement bar positioning is completed, construction personnel can use this auxiliary tool to position the main reinforcement bar. The inner ring reinforcement is welded and tied together to complete the fabrication of the reinforcing cage. After the inner ring reinforcement and main reinforcement are installed, the positioning of the reinforcing cage can be released by adjusting component 8 and clamping component 9. The two sets of semi-circular plates 2 are moved apart by the first drive component 4, which facilitates the handling of the reinforcing cage. The overall structure is simple to operate. Through the cooperation of adjusting component 8, movable rod 10, centering clamp 3, and clamping component 9, the relative position of the inner ring reinforcement and main reinforcement can be precisely controlled, avoiding problems such as uneven reinforcement spacing and overall shape deviation of the reinforcing cage under traditional manual positioning methods. This ensures the dimensional and shape accuracy of the reinforcing cage, improves the quality and fabrication efficiency of the reinforcing cage, and can also adapt to the fabrication of inner ring reinforcement and main reinforcement of different diameters, improving the versatility of the device.

[0052] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An auxiliary tool for fabricating steel cages for manually excavated bored piles, characterized in that, include: The base (1) has two sets of semi-annular plates (2) that slide relative to each other on its top. The base (1) is provided with a first driving component (4) that drives the two sets of semi-annular plates (2) to slide relative to each other. When the two semi-annular plates (2) are in contact, they can form a circular structure. Multiple movable rods (10) are provided through and slide along the circumference of the two sets of semi-annular plates (2). Centering clamps (3) that can clamp the inner ring ribs are fixedly installed on the movable rods (10). Adjustment components (8) that drive the multiple movable rods (10) on the two semi-annular plates (2) to move are provided. Two fixing rings (5) are fixedly installed on the two sets of semi-circular plates (2) by multiple fixing rods (6). Multiple clamping components (9) for clamping the main reinforcement are provided on the fixing rings (5) along their circumference.

2. The auxiliary tool for fabricating manually excavated bored pile reinforcement cages according to claim 1, characterized in that, The movable rod (10) is a rack, and the adjusting assembly (8) includes: A fixing plate (84) is fixedly installed on the semi-annular plate (2), and a rotating shaft (83) is rotatably connected to the fixing plate (84). The external gear (81) is a semi-annular structure coaxial with the semi-annular plate (2). The external gear (81) is slidably disposed on the semi-annular plate (2). Two drive gears (82) are sleeved and fixedly installed at both ends of the rotating shaft (83). The two drive gears (82) mesh with the movable rod (10) and the external gear (81) respectively.

3. The auxiliary tool for fabricating steel cages for manually excavated bored piles according to claim 2, characterized in that, A first slider (15) is fixedly installed on the external gear (81). The first slider (15) is an arc-shaped structure coaxial with the external gear (81). A first groove (16) is provided on the semi-annular plate (2) for the first slider (15) to slide.

4. The auxiliary tool for fabricating steel cages for manually excavated bored piles according to claim 3, characterized in that, The length of the first groove (16) is greater than the length of the first slider (15).

5. The auxiliary tool for fabricating steel cages for manually excavated bored piles according to claim 3, characterized in that, The semi-annular plate (2) has a plurality of positioning holes (14) recessed relative to the external gear (81). The plurality of positioning holes (14) are spaced apart along the circumference of the semi-annular plate (2). The external gear (81) is threadedly connected to the positioning holes (14) with positioning bolts (13).

6. The auxiliary tool for fabricating manually excavated bored pile reinforcement cages according to claim 1, characterized in that, The clamping assembly (9) includes: The fixing block (91) has a mounting plate (93) fixedly installed at its bottom, which is detachably connected to the fixing ring (5). A threaded rod (94) is threaded through and threadedly connected to the fixing block (91). An auxiliary plate (96) is rotatably mounted on the threaded rod (94). A guide rod (92) is movably connected to the fixed block (91) and fixedly connected to the auxiliary plate (96). Two clamping plates (95) are slidably mounted on the auxiliary plate (96). A second driving assembly (97) is provided on the auxiliary plate (96) to drive the two clamping plates (95) to slide relative to each other.

7. The auxiliary tool for fabricating manually excavated bored pile reinforcement cages according to claim 6, characterized in that, The second drive component (97) includes: The second double-headed screw (972) is rotatably mounted on the auxiliary plate (96); Two third sliders (971) are fitted together at their first ends and threadedly connected to both ends of the second double-ended screw (972). The second ends of the two third sliders (971) are respectively fixedly connected to the two clamping plates (95). The two third sliders (971) are slidably disposed on the auxiliary plate (96). The auxiliary plate (96) is provided with a third groove (973) for the third sliders (971) to slide.

8. The auxiliary tool for fabricating manually excavated bored pile reinforcement cages according to claim 7, characterized in that, The guide rod (92) is fitted with a spring (17) that abuts against the fixing block (91) at one end away from the auxiliary plate (96).

9. The auxiliary tool for fabricating manually excavated bored pile reinforcement cages according to claim 1, characterized in that, The first driving component (4) includes: The first double-ended screw (42) is rotatably mounted on the base (1), and a motor (43) for driving the first double-ended screw (42) to rotate is fixedly mounted on the base (1). Two second sliders (41) are fitted together at their first ends and threaded to both ends of the first double-ended screw (42). The second ends of the two second sliders (41) are respectively fixedly connected to the two sets of semi-annular plates (2). The base (1) is provided with a second groove (44) for the two second sliders (41) to slide.

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