Reserved steel bar correcting device of PC component

Abstract

The invention relates to the technical field of reinforcing steel bar correction equipment, in particular to a reserved reinforcing steel bar correction device of a PC component. According to the technical scheme, the reinforced PC component comprises a PC component body and a plurality of reserved steel bars which are arranged at one end of the PC component body at different intervals. Through the design of the first clamping plate, the second clamping plate, the adjusting mechanism, the clamping mechanism and other structures, the reserved reinforcing steel bar correcting device can be flexibly adjusted according to different distances of reinforcing steel bars in actual construction, and the limitation that the reinforcing steel bars cannot be used due to non-uniform distances of the reinforcing steel bars is avoided. Meanwhile, the reinforcing steel bar correcting device is small in size, and the situation that a large amount of manpower or large equipment such as a crane is used can be avoided. In addition, the device can be quickly moved and deployed on a construction site, so that constructors can more flexibly adjust the work progress, waiting time and preparation work needed when large hoisting equipment is used are avoided, and therefore the whole construction process is accelerated.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar correction equipment, and in particular to a reserved steel bar correction device for a PC component. Background Art

[0002] PC components refer to prefabricated concrete components, which are concrete structural components that are prefabricated, maintained, and processed in the factory and then transported to the construction site for assembly and installation. In the design stage, reserved steel bars will be provided on the PC components to ensure docking with other components. However, since the reserved steel bars of the PC components are easily deflected during the transportation, lifting, and installation of the PC components, the reserved steel bars cannot be docked with the steel bars of other components during installation during construction, and a steel bar correction device is required. The patent name disclosed in CN220889556U is a steel bar correction device for PC components, which can only correct the reserved steel bars of a specified spacing. When the spacing between the reserved steel bars is of different lengths, the first semicircular through hole on the upper correction plate and the second semicircular through hole on the lower correction plate cannot be used, and thus this steel bar correction device has great limitations in practical applications. At the same time, the device is too large in size, requiring a lot of manpower when transporting, and even requiring the use of lifting equipment (such as cranes, forklifts, etc.). If there are not enough mechanical equipment on the construction site, relying on manual handling will not only greatly increase the difficulty of the work, but will also be easily affected by space constraints, making it difficult to quickly adjust the position of equipment, affecting construction progress and efficiency. Summary of the invention

[0003] The purpose of the present invention is to propose a reserved steel bar correction device for PC components in view of the problems existing in the background technology.

[0004] The technical solution of the present invention is: a reserved steel bar correction device for a PC component, comprising a PC component body and a plurality of reserved steel bars with different lengths of spacing arranged at one end of the PC component body, and also comprising: a first clamping plate and a second clamping plate, wherein the movably clamping plate is arranged on one pair of the reserved steel bars; an adjustment mechanism installed on the first clamping plate and the second clamping plate to adjust the reserved steel bars with different spacings to adapt to the adjustment mechanism; and a clamping mechanism arranged on the first clamping plate and the second clamping plate to clamp the PC component body.

[0005] Optionally, the adjustment mechanism includes a groove formed at the connecting end of the first clamping plate and the second clamping plate, a T-shaped slide groove is formed in the groove, a pair of T-shaped sliders are slidably connected inside the T-shaped slide groove, a positioning clamp is fixedly connected to one end of the T-shaped slider that is out of the T-shaped slide groove, and an arc-shaped clamp groove for clamping the reserved steel bars is formed at one end of the positioning clamp away from the T-shaped slider.

[0006] Optionally, the adjustment mechanism also includes a pair of support cover cylinders arranged on the groove, both ends of the support cover cylinders are slidably connected with adjustment blocks, and the ends of the adjustment blocks away from the support cover cylinders are fixedly connected with correction clamps corresponding to the positioning clamps, and the opposite surfaces of the correction clamps are provided with correction slots corresponding to the arc-shaped clamping grooves and clamping the reserved steel bars, the aperture of the arc-shaped clamping grooves is smaller than the aperture of the correction slots, and a reset spring is fixedly provided in the middle of each pair of the adjustment blocks, and a correction mechanism is provided on the first clamping plate.

[0007] Optionally, the correction mechanism includes a multi-stage cylinder fixedly connected to the first clamping plate, the piston rod of the multi-stage cylinder is fixedly connected to a driving cover, the end of the driving cover close to the first clamping plate is fixedly connected to a driving plate, the end of the driving plate away from the driving cover is fixedly connected to one of the supporting cover tubes, and the end of the driving plate away from the supporting cover tube is provided with a semicircular groove slidably connected to the multi-stage cylinder.

[0008] Optionally, the clamping mechanism includes sliding grooves provided on the first clamping plate and the second clamping plate, the interior of the sliding grooves are slidably connected with clamping push plates, the outer walls of the first clamping plate and the second clamping plate are fixedly connected with U-shaped brackets corresponding to the sliding grooves, the U-shaped brackets are fixedly connected with cylinders, and the piston rods of the cylinders are movable through the U-shaped brackets and fixedly connected with the corresponding clamping push plates.

[0009] Optionally, a non-slip pad is fixedly provided on one side of the clamping push plate close to the PC component body, a restraining frame supporting the cylinder is provided on the outer wall of the U-shaped bracket, and a locking bolt is provided on one end of the restraining frame close to the U-shaped bracket.

[0010] Optionally, the clamping mechanism further comprises a pair of protrusions fixedly connected to the connecting ends of the first clamping plate and the second clamping plate, wherein one pair of the protrusions are each provided with a fixing bolt, and the other pair of the protrusions are each fixedly connected with a fixing nut spirally connected to the fixing bolt.

[0011] Optionally, a tightening bolt is provided on one of the support cover tubes, and a tightening nut spirally connected to the tightening bolt is fixedly connected to the other support cover tube.

[0012] Optionally, a pair of U-shaped handles are fixedly connected to the first clamping plate and the second clamping plate, and a pair of reinforcement frames are also fixedly connected to the first clamping plate and the second clamping plate.

[0013] Optionally, the first clamping plate and the second clamping plate are both symmetrically arranged with the reserved steel bars on the PC component body as the center.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: The present invention, through the design of the first clamping plate, the second clamping plate, the adjustment mechanism and the clamping mechanism, enables the reserved steel bar correction device to be flexibly adjusted according to the different spacings of the steel bars in actual construction, avoiding the limitation of being unusable due to uneven spacings of the steel bars. At the same time, the steel bar correction device is small in size, which can not only avoid the situation of a large amount of manpower or the use of large equipment such as cranes. It can also be quickly moved and deployed at the construction site, so that construction personnel can adjust the work progress more flexibly, avoid the waiting time and preparation work required when using large lifting equipment, thereby speeding up the entire construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a reserved steel bar correction device for a PC component of the present invention is given; Figure 2 for Figure 1 A schematic diagram of the connection structure between the first card plate and the second card plate; Figure 3 for Figure 2 Schematic diagram of the structure in the open state; Figure 4 for Figure 3 Schematic diagram of the partial split structure; Figure 5 for Figure 4 Schematic diagram of the cross-section split structure; Figure 6 for Figure 3 Schematic diagram of some structures; Figure 7 for Figure 6 Schematic diagram of the split structure.

[0016] 1. PC component body; 11. reserved steel bars; 2. first clamping plate; 3. second clamping plate; 231. T-shaped slide groove; 232. positioning clamping block; 233. arc-shaped clamping groove; 234. T-shaped slider; 235. protrusion; 236. fixing bolt; 237. fixing nut; 321. sliding groove; 322. anti-slip pad; 323. clamping push plate; 324. U-shaped bracket; 325. cylinder; 326. restraining frame; 327. locking bolt; 4. multi-stage cylinder; 41. driving cover; 42. driving plate; 43. supporting cover tube; 44. adjusting block; 45. correction clamping block; 46. correction clamping groove; 47. tightening bolt; 48. tightening nut; 49. reset spring; 5. reinforcement frame; 6. U-shaped handle. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0019] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example like Figures 1 to 7As shown, the reserved steel bar correction device of the PC component proposed by the present invention includes a PC component body 1 and a plurality of reserved steel bars 11 with different lengths of spacing arranged at one end of the PC component body 1, and also includes: a first clamping plate 2 and a second clamping plate 3, both of which are fixedly connected with a pair of U-shaped handles 6, and the U-shaped handles 6 are used to provide a more convenient and safe operation mode, and through the U-shaped handles 6, the operator can evenly distribute the force, avoid the situation that a single person cannot carry the steel bar correction device, reduce the burden, and reduce the risk of muscle strain and injury. A pair of reinforcement frames 5 are also fixedly connected to the first clamping plate 2 and the second clamping plate 3. The first clamping plate 2 and the second clamping plate 3 will be subjected to a large external force during the working process. The reinforcement frame 5 can provide additional support, reduce the deformation of the clamping structure during the operation process, and ensure the stability of the clamping. At the same time, the reinforcement frame 5 can also enhance the structural rigidity of the first clamping plate 2 and the second clamping plate 3, so that the clamping force is more evenly distributed on the PC component body 1, avoiding damage to the workpiece or loose clamping due to excessive or uneven local pressure. The first clamping plate 2 and the second clamping plate 3 are both symmetrically arranged with the reserved steel bars 11 on the PC component body 1 as the center, and the movable clamp is arranged on one pair of the reserved steel bars 11; an adjustment mechanism is installed on the first clamping plate 2 and the second clamping plate 3 to adjust to the reserved steel bars 11 with different spacings; and a clamping mechanism is arranged on the first clamping plate 2 and the second clamping plate 3 to clamp the PC component body 1.

[0024] Further, the adjustment mechanism includes a groove provided at the connecting end of the first clamping plate 2 and the second clamping plate 3, and the groove is used for the positioning clamping block 232 to adjust according to the position of the reserved steel bar 11. A T-shaped slide groove 231 is provided in the groove, and the T-shaped slide groove 231 ensures that the T-shaped slider 234 slides therein but does not fall out. A pair of T-shaped sliders 234 are slidably connected inside the T-shaped slide groove 231, and one end of the T-shaped slider 234 that falls out of the T-shaped slide groove 231 is fixedly connected to the positioning clamping block 232, and one end of the positioning clamping block 232 away from the T-shaped slider 234 is provided with an arc-shaped clamping groove 233 for clamping the reserved steel bar 11, and the pair of arc-shaped clamping grooves 233 can clamp the reserved steel bar 11, so that the first clamping plate 2 and the second clamping plate 3 can be fixed at the root of the reserved steel bar 11.

[0025] Among them, the adjustment mechanism also includes a pair of support cover tubes 43 arranged on the groove, one of the support cover tubes 43 is provided with a tightening bolt 47, and the other support cover tube 43 is fixedly connected with a tightening nut 48 spirally connected to the tightening bolt 47. The tightening bolt 47 and the tightening nut 48 are used in conjunction with each pair of correction slots 46 to clamp the reserved steel bars 11 but not completely fix them, and the reserved steel bars 11 can be slidably corrected in a pair of correction slots 46. Both ends of the support cover 43 are slidably connected with adjustment plugs 44, and one end of the adjustment plug 44 away from the support cover 43 is fixedly connected with a correction clamp 45 corresponding to the positioning clamp 232. The opposite surface of the correction clamp 45 is provided with a correction slot 46 corresponding to the arc-shaped clamp groove 233 and clamping the reserved steel bar 11. The aperture of the arc-shaped clamp groove 233 is smaller than the aperture of the correction slot 46. Its function is that when the arc-shaped clamp groove 233 firmly clamps the reserved steel bar 11, the correction slot 46 will not completely and tightly clamp the reserved steel bar 11, and the reserved steel bar 11 can slide and correct in the correction slot 46. A reset spring 49 is fixedly provided in the middle of each pair of adjustment plugs 44. The reset spring 49 allows the correction clamp 45 to rotate and return to its original position when it does not work to clamp the reserved steel bar 11. Both ends of the reset spring 49 are larger than the corresponding ends of the adjustment plug 44 and are fixedly connected. A correction mechanism is provided on the first clamping plate 2.

[0026] Secondly, the correction mechanism includes a multi-stage cylinder 4 fixedly connected to the first clamping plate 2. The multi-stage cylinder 4 is a pneumatic component that completes a longer stroke or higher thrust output through multiple working stages (or stages). Each stage (or stage) has an independent piston and working chamber inside the cylinder, and the work of each stage is controlled by different air pressures, so that the thrust or stroke of the cylinder in each stage is gradually enhanced to meet different work requirements. The piston rod of the multi-stage cylinder 4 is fixedly connected to a driving cover 41, and the end of the driving cover 41 close to the first clamping plate 2 is fixedly connected to a driving plate 42, and the end of the driving plate 42 away from the driving cover 41 is fixedly connected to one of the support cover tubes 43, and the end of the driving plate 42 away from the support cover tube 43 is provided with a semicircular groove that is slidably connected to the multi-stage cylinder 4.

[0027] Furthermore, the clamping mechanism includes a sliding groove 321 provided on the first clamping plate 2 and the second clamping plate 3, the interior of the sliding groove 321 is slidably connected with a clamping push plate 323, the outer walls of the first clamping plate 2 and the second clamping plate 3 are fixedly connected with a U-shaped bracket 324 corresponding to the sliding groove 321, and the U-shaped bracket 324 is fixedly connected with a cylinder 325, which is also called a pneumatic clamping cylinder (or pneumatic clamp cylinder), and is a pneumatic component specially designed to provide clamping force in industrial automation, mechanical manufacturing and assembly processes. It is usually driven by compressed air, can achieve the clamping and fixing of objects, and is widely used in robot grasping, processing equipment, assembly lines, detection devices and other occasions. The piston rods of the cylinders 325 are all movable and penetrate the U-shaped bracket 324 and are fixedly connected to the corresponding clamping push plates 323. The side of the clamping push plates 323 close to the PC component body 1 is fixedly provided with anti-skid pads 322. The anti-skid pads 322 are made of rubber. Their function is to effectively prevent the clamped objects from sliding through their unique high-friction surface, thereby ensuring the stability of the clamped objects. At the same time, the elasticity and softness of the rubber anti-skid pads 322 can effectively buffer the pressure generated during the clamping process, prevent the clamped objects from being directly compressed or damaged, and thus protect the outer wall of the clamped PC component body 1. The outer wall of the U-shaped bracket 324 is provided with a restraining frame 326 supporting the cylinder 325. The restraining frame 326 supports the cylinder 325 to run stably on the U-shaped bracket 324. The restraining frame 326 is provided with a locking bolt 327 on one end close to the U-shaped bracket 324. The locking bolt 327 allows the cylinder 325 to be quickly disassembled and assembled on the U-shaped bracket 324.

[0028] Furthermore, the clamping mechanism also includes a pair of protrusions 235 fixedly connected to the connecting ends of the first clamping plate 2 and the second clamping plate 3, wherein one pair of protrusions 235 are each provided with a fixing bolt 236, and the other pair of protrusions 235 are each fixedly connected with a fixing nut 237 spirally connected to the fixing bolt 236. When the fixing bolt 236 and the fixing nut 237 are used in conjunction with each other, the first clamping plate 2 and the second clamping plate 3 can be firmly connected.

[0029] In this embodiment, when the reserved steel bar correction device of the PC component is required, Figure 1As shown, the first clamping plate 2 and the second clamping plate 3 are installed at one end of the PC component body 1, and the arc-shaped clamping grooves 233 on a pair of positioning clamping blocks 232 clamp the reserved steel bars 11, and the correction clamping grooves 46 on a pair of correction clamping blocks 45 clamp the reserved steel bars 11. Then, the protrusions 235 on the first clamping plate 2 and the second clamping plate 3 are fixedly connected by fixing bolts 236 and fixing nuts 237, so that the arc-shaped clamping grooves 233 on the positioning clamping blocks 232 can be tightly fixed to one end of the reserved steel bars 11 close to the PC component body 1. Then, the reserved steel bars 11 are clamped by tightening bolts 47 and tightening nuts 48 on the support cover 43, so that the correction clamping grooves 46 on the correction clamping blocks 45 can clamp the reserved steel bars 11 in pairs but not completely fixed. At this time, after each pair of correction clamping blocks 45 clamp the reserved steel bars 11, the reserved steel bars 11 can slide in the correction clamping grooves 46. Next, the cylinder 325 on the first clamping plate 2 and the second clamping plate 3 can be started at the same time. The cylinder 325 pushes the clamping push plate 323 tightly against the outer wall of the PC component body 1 through the support of the U-shaped bracket 324 and the restraining frame 326. At this time, the first clamping plate 2 and the second clamping plate 3 can be completely fixed on the PC component body 1. Finally, the multi-stage cylinder 4 on the first clamping plate 2 is started. The piston rod of the multi-stage cylinder 4 pushes the driving cover 41 to move, and the driving cover 41 drives the plate 42 to move. After a pair of support cover cylinders 43 are fixed by tightening bolts 47 and tightening nuts 48, the driving plate 42 can drive a pair of support cover cylinders 43 to move. After that, each end of the support cover cylinder 43 drives the adjustment plug 44 and the correction clamp 45 to move in turn, so that the correction clamp 45 drives the correction slot 46 to clamp the reserved steel bar 11 to slide, and then the reserved steel bar 11 clamped by each pair of correction slots 46 is straightened and corrected, which is quick and easy to operate. The reserved steel bars 11 remaining at one end of the PC component body 1 are corrected in pairs of two each, so that the reserved steel bar correction device of the PC component is suitable for reserved steel bars 11 with different spacings, and has a small volume, does not require multiple people, and is labor-saving and easy to operate.

[0030] The preferred embodiments of the present invention described above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A reserved steel bar correction device for a PC component, comprising a PC component body (1) and a plurality of reserved steel bars (11) arranged at one end of the PC component body (1) with different lengths of spacing, characterized in that: Also includes: A first clamping plate (2) and a second clamping plate (3), movably clamped on one pair of the reserved steel bars (11); An adjustment mechanism installed on the first clamping plate (2) and the second clamping plate (3) for adjusting the reserved steel bars (11) at different intervals to adapt to the different intervals; A clamping mechanism is provided on the first clamping plate (2) and the second clamping plate (3) for clamping the PC component body (1).

2. A reserved steel bar correction device for a PC component according to claim 1, characterized in that: The adjustment mechanism comprises a groove formed at the connecting end of the first clamping plate (2) and the second clamping plate (3), wherein a T-shaped sliding groove (231) is formed in the groove, wherein a pair of T-shaped sliding blocks (234) are slidably connected inside the T-shaped sliding groove (231), wherein one end of the T-shaped sliding blocks (234) that escapes from the T-shaped sliding groove (231) is fixedly connected to a positioning clamping block (232), and an end of the positioning clamping block (232) that is away from the T-shaped sliding block (234) is formed with an arc-shaped clamping groove (233) for clamping the reserved steel bar (11).

3. A reserved steel bar correction device for a PC component according to claim 2, characterized in that: The adjustment mechanism further comprises a pair of support cover tubes (43) arranged on the groove, both ends of the support cover tubes (43) are slidably connected with adjustment plug blocks (44), one end of the adjustment plug blocks (44) away from the support cover tube (43) is fixedly connected with a correction clamp block (45) corresponding to the positioning clamp block (232), and the opposite surface of the correction clamp block (45) is provided with a correction clamping groove (46) corresponding to the arc clamping groove (233) and clamping the reserved steel bar (11), the aperture of the arc clamping groove (233) is smaller than the aperture of the correction clamping groove (46), a return spring (49) is fixedly provided in the middle of each pair of the adjustment plug blocks (44), and the first clamping plate (2) is provided with a correction mechanism.

4. A reserved steel bar correction device for a PC component according to claim 3, characterized in that: The correction mechanism comprises a multi-stage cylinder (4) fixedly connected to the first clamping plate (2), a piston rod of the multi-stage cylinder (4) fixedly connected to a driving cover (41), an end of the driving cover (41) close to the first clamping plate (2) fixedly connected to a driving plate (42), an end of the driving plate (42) away from the driving cover (41) is fixedly connected to one of the supporting cover cylinders (43), and an end of the driving plate (42) away from the supporting cover cylinder (43) is provided with a semicircular groove slidably connected to the multi-stage cylinder (4).

5. The reserved steel bar correction device for PC components according to claim 1 is characterized in that: The clamping mechanism comprises a sliding groove (321) provided on the first clamping plate (2) and the second clamping plate (3); the interior of the sliding groove (321) is slidably connected to a clamping push plate (323); the outer walls of the first clamping plate (2) and the second clamping plate (3) are fixedly connected to a U-shaped bracket (324) corresponding to the sliding groove (321); the U-shaped bracket (324) is fixedly connected to a cylinder (325); the piston rod of the cylinder (325) movably passes through the U-shaped bracket (324) and is fixedly connected to the corresponding clamping push plate (323).

6. A reserved steel bar correction device for a PC component according to claim 5, characterized in that: A non-slip pad (322) is fixedly provided on one side of the clamping push plate (323) close to the PC component body (1), a restraining frame (326) supporting the cylinder (325) is provided on the outer wall of the U-shaped bracket (324), and a locking bolt (327) is provided on one end of the restraining frame (326) close to the U-shaped bracket (324).

7. The reserved steel bar correction device for PC components according to claim 1 is characterized in that: The clamping mechanism further comprises a pair of protrusions (235) fixedly connected to the connecting ends of the first clamping plate (2) and the second clamping plate (3), wherein one pair of the protrusions (235) is provided with a fixing bolt (236), and the other pair of the protrusions (235) is fixedly connected with a fixing nut (237) screwedly connected to the fixing bolt (236).

8. The reserved steel bar correction device for PC components according to claim 3 is characterized in that: A tightening bolt (47) is provided on one of the support cover tubes (43), and a tightening nut (48) spirally connected to the tightening bolt (47) is fixedly connected to the other support cover tube (43).

9. The reserved steel bar correction device for PC components according to claim 1, characterized in that: A pair of U-shaped handles (6) are fixedly connected to the first clamping plate (2) and the second clamping plate (3), and a pair of reinforcement frames (5) are also fixedly connected to the first clamping plate (2) and the second clamping plate (3).

10. The reserved steel bar correction device for PC components according to claim 1, characterized in that: The first clamping plate (2) and the second clamping plate (3) are both symmetrically arranged with the reserved steel bars (11) on the PC component body (1) as the center.

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