Pottery cultural relic repair clamping device and method

Abstract

The invention discloses a pottery cultural relic repair clamping device and method, and particularly relates to the technical field of pottery cultural relic repair, the pottery cultural relic repair clamping device comprises a bearing platform, the periphery of the bearing platform is rotatably connected with an expansion support arm, and the outer end of the expansion support arm is rotatably connected with an extension arm; a first telescopic supporting arm with the overturning and stretching functions is arranged in the extension supporting arm in a sliding mode, and a second telescopic supporting arm with the overturning and stretching functions is arranged in the extension arm in a sliding mode. The outer end of the first telescopic supporting arm and the outer end of the second telescopic supporting arm are each provided with a clamping head module. The expansion support arms and the extension arms have a flattened state, and the bearing platform used for expanding the bearing platform, the expansion support arms and the extension arms have a folded state. By means of the foldable expansion supporting arm, the extension arm, the first telescopic supporting arm and the second telescopic supporting arm, the function of the expansion working platform and the safety transfer protection function are ingeniously integrated, in-situ protection type transfer of repaired cultural relics is achieved, and the collision and toppling risks in the transfer process are reduced.

Description

Technical Field

[0001] This invention relates to the field of pottery artifact restoration technology, specifically to a pottery artifact restoration clamping device and method. Background Technology

[0002] Pottery artifacts are an important part of human cultural heritage, possessing extremely high historical, artistic, and scientific value. However, due to their age, complex burial environments, or human factors before and after excavation, many pottery artifacts are already broken or incomplete when excavated. Restoration is a crucial step in restoring them to their original appearance, preserving them, and displaying them. Traditional clamping devices are mostly fixed-structure workbench designs, which are large, heavy, and space-consuming. This is not only inconvenient for use in space-constrained settings such as archaeological excavation sites and small restoration workshops, but also makes it difficult to quickly transport and move them, reducing the flexibility of restoration work. Secondly, existing devices only have the function of clamping during restoration. After restoration, additional packaging boxes, transfer racks, and other equipment are needed to transfer the artifacts to storage cabinets or display areas. During the transfer process, the artifacts need to be disassembled and moved multiple times, which can easily lead to collisions and drops due to improper operation, causing secondary damage. This is especially true for fragile artifacts that have already been pieced together, where the risk of transfer is extremely high. Therefore, we propose a pottery artifact restoration clamping device and method to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a clamping device and method for the restoration of pottery artifacts, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a pottery artifact restoration clamping device, comprising a support platform, an extended support arm rotatably connected to the outer periphery of the support platform, and an extension arm rotatably connected to the outer end of the extended support arm; The extended arm has a sliding telescopic support arm 1 with flipping and telescopic functions inside, and the extended arm has a sliding telescopic support arm 2 with flipping and telescopic functions inside. A clamping head module is installed at the outer end of both the first telescopic support arm and the second telescopic support arm. The extended support arm and the extension arm are in a flattened state for expanding the support platform of the pedestal, and the extended support arm and the extension arm are in a retracted state for protecting and transferring pottery artifacts.

[0005] Preferably, the clamping head module includes a main body shell, an air pump one, an air pump two, a telescopic rod, and a connecting pipe; The main body shell has an inner cavity, the telescopic rod is slidably connected to the outer end of the main body shell and communicates with the inner cavity, and the air pump is installed on one side of the main body shell and communicates with the inside of the inner cavity. The telescopic rod is fitted with a connecting pipe at its inner end within the cavity, and a suction cup is fitted at its outer end outside the cavity. The connecting pipes are connected to each other. The second air pump is installed on one side of the main body shell and is connected to the suction cup via the connecting pipe.

[0006] Preferably, the clamping head module further includes a flexible connecting sleeve; The outer side of the outer end of the telescopic rod is connected to a flexible connecting sleeve, which has the characteristic of flexible deformation.

[0007] Preferably, a support base is provided at the bottom of the support platform, the support platform is rotatably connected to the top of the support base, and a support leg is provided circumferentially at the bottom of the support base; A motor is installed at the center of the bottom of the support base, and the output shaft of the motor is connected to the center of the bottom of the support base.

[0008] Preferably, the outer side of the outer end of the extension arm is provided with a connecting lug; When the extended arm is in the retracted state, it is in a vertical position, and the connecting lug is on the outside. An elastic band is inserted between the connecting lugs, and a snap fastener is provided between the two ends of the elastic band.

[0009] Preferably, the extended support arm includes a second limiting platform, a first support arm, a second support arm, and a slide rail; The inner end of the first support arm is rotatably connected to the outer periphery of the bearing platform by bolts, the inner end of the second support arm is rotatably connected to the outer end of the first support arm by bolts, and the outer end of the second support arm is rotatably connected to the inner end of the extension arm by bolts. One side of the first support arm and the second support arm are provided with a through groove, and the inner walls of both sides of the through groove are equipped with slide rails. The other side of the first support arm and the second support arm are equipped with a limiting platform plate 2. The limiting platform plate 2 can contact the second support arm and the extension arm respectively, and is used to support the second support arm and the extension arm in a flattened state. The bottom of the support platform is equipped with a limiting plate, which can contact the support arm to support the support arm in a flattened state.

[0010] Preferably, the telescopic support arm includes a slide, a hinged arm, a telescopic arm, and a threaded rod. The slide block is slidably connected between the slide rails; The inner end of the first hinge arm is rotatably connected to the outer end of the slide by bolts; The inner end of the telescopic arm is slidably connected to the hinge arm, the outer end of the telescopic arm is connected to the clamping head module, the inner part of the hinge arm is rotatably connected to a threaded rod, the outer end of the threaded rod is threadedly connected to the telescopic arm, and the inner end of the threaded rod is connected to a handwheel.

[0011] Preferably, the telescopic support arm two includes a hinged arm two, a telescopic arm two, and a threaded rod; Guide grooves are provided on both sides of the extension arm; The inner ends of the second articulated arm are provided with threaded posts on both sides. The threaded posts are slidably connected in the guide groove. The ends of the threaded posts are threaded with nuts, and the nuts abut against the outer surface of the extension arm. The inner end of the telescopic arm 2 is slidably connected to the hinge arm 2, the outer end of the telescopic arm 2 is connected to the clamping head module, the inner part of the hinge arm 2 is rotatably connected to a threaded rod, the outer end of the threaded rod is threadedly connected to the telescopic arm 2, and the inner end of the threaded rod is connected to a handwheel.

[0012] Preferably, a locking block is slidably connected to the inner wall of the through groove on the second support arm. A spring is installed on the side of the locking block away from the through groove. One end of the spring is installed on the second support arm for locking the telescopic support arm and the clamping head module. A second locking block is slidably connected inside the extension arm. A second spring is installed on the side of the second locking block near the outer end of the extension arm. One end of the second spring is installed on the extension arm and is used to lock the telescopic support arm and the clamping head module.

[0013] A method for using a clamping device for the restoration of pottery artifacts includes the following steps: Step 1: Place the pottery artifact to be restored on the support platform; Step 2: Release the elastic band from the extension arm, and unfold the extension arm and the support arm outward and downward from the folded state until the bottom surface of support arm one abuts against the limiting plate one or the bottom surface of support arm two / extension arm abuts against the corresponding limiting plate two, so that it is in a flat state, forming an extended working platform centered on the support platform. Step 3: Based on the size, shape, and location of the damage to the pottery artifact, plan the clamping points: slide the slide block along the slide rail, adjust the radial position of the telescopic support arm one on the support arm one and support arm two, and lock it with the set screw; slide the hinge arm two along the guide groove, adjust the position of the telescopic support arm two on the extension arm, and tighten the nut at the end of the threaded column to press it firmly against the outer surface of the extension arm. Step 4: Rotate the handwheels of threaded rod 1 and threaded rod 2 to drive telescopic arm 1 and telescopic arm 2 to extend along their axial direction, so that each clamping head module is approximately close to the predetermined clamping point on the surface of the artifact; then, flip hinge arm 1 and hinge arm 2 and adjust their angle so that the suction cups of the clamping head module can face and approach the surface of the artifact to be clamped. Step 5: Fine-tune the lengths of telescopic arms 1 and 2 to ensure each suction cup adheres to the surface of the artifact; activate air pump 1 to create negative pressure within the suction cups through the internal channels of the connecting pipe and telescopic rod, thus firmly adhering them to the artifact surface; activate air pump 2 to drive the telescopic rod to make slight axial movements by adjusting the air pressure in the internal cavity. Combined with the flexible deformation of the flexible connecting sleeve, the suction cups adapt to the microscopic unevenness of the artifact surface while maintaining adhesion, achieving flexible and stable clamping. Step Six: After checking that all clamping points are secure and reliable, start the motor to drive the platform and the pottery artifacts clamped and fixed on it to rotate slowly and steadily, so that the restorers can clean, assemble, glue, and repair the artifacts from all angles. Step 7: After the repair work is completed, first turn off air pump one and air pump two to release the suction force and micro-motion pressure of the suction cup; Step 8: Adjust the relative positions of telescopic support arm 1 and telescopic support arm 2 so that they can clamp the pottery artifact, and the extended arm and extension arm are in a vertically retracted state, completing the retraction and locking of the device. At this time, the device forms a protective frame, which can safely transfer the restored pottery artifact.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This pottery artifact restoration clamping device cleverly integrates the functions of an extended work platform and safe transfer protection through foldable extendable arms, extension arms, telescopic support arm one, and telescopic support arm two. In the flat state, it provides an operating space that is much larger than a traditional workbench, allowing for flexible arrangement of multiple clamping points to meet the restoration needs of artifacts of different sizes, from small and medium-sized pottery jars to large pottery urns. In the folded state, it can quickly wrap the artifact in a protective frame composed of rigid arms and lock it with simple mechanisms such as elastic bands, realizing the "in-situ protective" transfer of the restored artifact. This greatly simplifies the process, reduces the risk of collision and tipping during the transfer, and solves the problems of inconvenient storage and carrying and the need for additional transfer equipment.

[0015] 2. This pottery artifact restoration clamping device, through its multi-degree-of-freedom adjustable telescopic support arm one and telescopic support arm two, combined with a clamping head module with micro-motion compensation and flexible self-adaptation capabilities, achieves precise, stable, and flexible clamping of complex and irregular pottery artifact surfaces. The negative pressure adsorption method transforms the traditional concentrated gripping force into a dispersed adsorption force, avoiding point contact stress concentration. The combination of pneumatic micro-adjustment and flexible sleeve allows the clamping head to conform to the subtle undulations of the artifact surface, supporting the artifact like a "soft hand," significantly reducing potential damage to fragile parts, repair gaps, or painted surfaces. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the fully unfolded structure in this invention.

[0018] Figure 2 This is a schematic diagram of the structure in the fully retracted state in this invention; Figure 3 This is a schematic diagram of the structure in the semi-folded state in this invention; Figure 4 This is a schematic diagram of the support base connection in this invention; Figure 5 This is a schematic diagram of the connection between the extension arm and the extension arm in this invention; Figure 6 This is a schematic diagram of the cross-sectional view of the connection between the extended arm and the extension arm in this invention; Figure 7 This is a schematic diagram of the cross-sectional view of a connecting telescopic support arm in this invention; Figure 8 This is a schematic cross-sectional view of the telescopic support arm two-way connection in this invention; Figure 9 This is a schematic diagram of the clamping head module in this invention; Figure 10 This is a cross-sectional structural schematic diagram of the clamping head module in this invention; Figure 11 In this invention Figure 6 Schematic diagram of the structure at point A; Figure 12 In this invention Figure 6 A schematic diagram of the structure at point B.

[0019] In the diagram: 1. Foundation; 11. Support base; 12. Motor; 13. Limiting plate one; 2. Extended support arm; 21. Limiting platform two; 22. Support arm one; 23. Support arm two; 231. Locking block one; 232. Spring one; 24. Slide rail; 3. Extension arm; 31. Connecting lug; 32. Elastic band; 33. Plug-in buckle; 34. Guide groove; 35. Second locking block; 36. Second spring; 4. Telescopic support arm; 41. Slide; 42. Hinge arm; 43. Telescopic arm; 44. Threaded rod; 5. Telescopic support arm II; 51. Hinge arm II; 511. Threaded column; 52. Telescopic arm II; 53. Threaded rod; 6. Clamping head module; 61. Main body shell; 611. Inner cavity; 62. Air pump one; 63. Air pump two; 64. Telescopic rod; 65. Flexible connecting sleeve; 66. Connecting pipe. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example: Figure 1-12 As shown, the present invention provides a pottery artifact restoration clamping device, including a base 1, an extended support arm 2 rotatably connected to the outer periphery of the base 1, and usually six hinge seats evenly distributed (the number of support points is determined according to the required number of support points, and the attached figure shows six as an example). On each hinge seat, the inner end of the extended support arm 2 is connected to the hinge bolt, and the outer end of the extended support arm 2 is connected to the extension arm 3 through the hinge bolt. The extended support arm 2 and the extension arm 3 rotate in a vertical plane. The extension arm 2 has a sliding telescopic support arm 4 with flipping and telescopic functions inside, and the extension arm 3 has a sliding telescopic support arm 5 with flipping and telescopic functions inside. A clamping head module 6 is installed at the outer end of telescopic support arm 4 and the outer end of telescopic support arm 5. The extended support arm 2 and the extended arm 3 are in a flattened state to extend the bearing platform of the support 1, and the extended support arm 2 and the extended arm 3 are in a retracted state to protect and transfer pottery artifacts. See Figure 1When fully extended, the device presents a radial platform structure with a central disc-shaped support platform 1, used for direct placement or as a central support reference for pottery artifacts. Through the coordinated design of foldable extension arms 2 and 3, and telescopic support arms 1 and 2, it cleverly achieves an integrated function of "flattening operation - folding and transferring". In the flattened state, extension arms 2 and / or 3 form a ring-shaped extended working platform centered on the support platform 1, providing ample operating space and adapting to artifacts of different sizes. In the folded state, extension arms 2 and 3 fold and close, while telescopic support arms 1 and 2 form a clamping support for the pottery artifact, thus forming a closed protective frame. The artifact can be directly transferred without additional transfer equipment, solving the problems of large size, inconvenience of carrying, and limited functionality of traditional devices. It can also be used for the shaping of colloid curing during the restoration of pottery artifacts.

[0022] Furthermore, the clamping head module 6 includes a main body shell 61, an air pump 1 62, an air pump 2 63, a telescopic rod 64, and a connecting pipe 66; The main body shell 61 has an inner cavity 611 inside. Several telescopic rods 64 are slidably connected to the outer end of the main body shell 61. The telescopic rods 64 are hollow inside, and their rear ends are connected to the inner cavity 611. An air pump 62 is installed on one side of the main body shell 61. The air pump 62 is a miniature vacuum pump. Its air intake is connected to the inner cavity 611 through a pipe. The function of the air pump 62 is to control the air pressure in the inner cavity 611. When positive pressure gas is filled into the inner cavity 611, it will push all the telescopic rods 64 to extend outwards slightly at the same time. When gas is extracted from the inner cavity 611, it will cause the telescopic rods 64 to retract inwards slightly. This micro-movement is usually very small (a few millimeters), but it is enough to compensate for the slight unevenness of the surface of the artifact or to achieve slight pre-tightening / relaxation adjustment. The telescopic rod 64 is connected to a connecting pipe 66 at its inner end in the inner cavity 611, and a soft suction cup (such as a silicone suction cup) is connected to the outer end of the telescopic rod 64 outside the inner cavity 611. The connecting pipes 66 are connected to each other. The second air pump 63 is installed on one side of the main body shell 61. The second air pump 63 is connected to the suction cup through the connecting pipe 66. The second air pump 63 is a miniature positive and negative pressure pump (or a double-acting air pump). Its output port is also connected to the connecting pipe 66 through a pipe. Therefore, when the second air pump 63 is started, the air inside the suction cup can be extracted to form a negative pressure, thereby adsorbing it onto the surface of the artifact.

[0023] Furthermore, the clamping head module 6 also includes a flexible connecting sleeve layer 65; The outer side of the telescopic rod 64 is connected to a flexible connecting sleeve 65. The flexible connecting sleeve 65 has the characteristic of flexible deformation. For example, a silicone rubber sleeve is used. The flexible connecting sleeve 65 is connected between all the suction cups. In this way, the flexible connecting sleeve 65 and the suction cups together form a sealed, stretchable and deformable flexible cover. When the suction cup is adsorbed on the surface of the artifact, the telescopic rod 64 driven by the second air pump 63 moves slightly, which will force the flexible connecting sleeve 65 to undergo corresponding stretching or bending deformation. This design enables the clamping head module 6 to provide stable adsorption and fixation on a macroscopic level, and to adapt to the surface through flexible deformation on a microscopic level, avoiding stress concentration of rigid connections and protecting the artifact. The first air pump 62 and the second air pump 63 of multiple clamping head modules 6 can be uniformly managed by a centralized air circuit controller, simplifying operation.

[0024] Furthermore, a support base 11 is provided at the bottom of the base 1. The base 1 is rotatably connected to the top of the support base 11 via a bearing. Support legs are provided circumferentially at the bottom of the support base 11 to ensure stability. A motor 12 is installed at the center of the bottom of the support base 11. The output shaft of the motor 12 is vertically upward and connected to the center of the bottom of the base 1. The motor 12 is preferably a low-speed DC motor or a stepper motor with a reducer. Its controller (not shown in the figure) can be installed on the side of the support base 11 to provide start, stop, forward rotation, reverse rotation and speed adjustment functions, thereby driving the base 1 to rotate accurately and smoothly in the horizontal plane.

[0025] In order to maintain the stability of this folded state during the transfer process, a connecting lug 31 is provided on the outer side of the outer end of the extension arm 3; When the extended arm 3 is in the retracted state, it is in a vertical position and the connecting lug 31 is on the outside. When all the extended arms 3 are retracted and vertical, their connecting lugs 31 are roughly aligned on the same circumference. An elastic band 32 is inserted between the connecting lugs 31. It is passed through the holes on all the connecting lugs 31 in sequence. The two ends of the elastic band 32 are provided with snap fasteners 33 (such as D-ring buckles, hook buckles, etc.). When the elastic band 32 is tightened, the two ends are fastened. The tension of the elastic band will hold all the extension arms 3 together, effectively preventing them from accidentally unfolding during movement and ensuring the safety of the transfer process. The elastic band 32 is lightweight and easy to use, and has a certain cushioning effect.

[0026] Furthermore, the extended support arm 2 includes a second limiting platform 21, a first support arm 22, a second support arm 23, and a slide rail 24; The inner end of support arm 1 22 is rotatably connected to the outer periphery of the bearing platform 1 by bolts. The inner end of support arm 23 is rotatably connected to the outer end of support arm 1 22 by bolts. The outer end of support arm 23 is rotatably connected to the inner end of extension arm 3 by bolts. In this way, a four-level hinge chain is formed from the bearing platform 1 outward: "bearing platform 1 - support arm 1 22 - support arm 23 - extension arm 3". The axes of all hinge shafts are parallel, allowing these arm segments to rotate in the vertical plane. A through groove is provided along the length of one side of the first arm 22 and the second arm 23. Parallel slide rails 24 are installed on the inner walls of both sides of the through groove. Limiting platform 21 is installed on the other side of the first arm 22 and the second arm 23. The limiting platform 21 can contact the second arm 23 and the extension arm 3 respectively, and is used to support the second arm 23 and the extension arm 3 in a flat state. When the operator unfolds the second arm 23 and the extension arm 3 outward and downward, at the same time, when the second arm 23 and the extension arm 3 are unfolded to the horizontal, their bottom surfaces will also abut against the limiting platform 21 located on the lower arm section (the first arm 22 or the second arm 23). These limiting platforms work together to provide stable rigid support for the unfolded arm system, making it a solid extension platform. The bottom of the support platform 1 is equipped with a limiting plate 13. The limiting plate 13 can contact the support arm 22 and is used to support the support arm 22 in a flat state. When the operator unfolds the extended support arm 2 outward and downward, when the support arm 22 rotates to a horizontal position, its bottom surface will just abut against the limiting plate 13, and the limiting plate 13 will bear its weight and part of the working load.

[0027] Furthermore, the telescopic support arm 4 includes a slide 41, a hinged arm 42, a telescopic arm 43, and a threaded rod 44. The slide block 41 is slidably connected between the slide rails 24. The slide block 41 can slide on the slide rails 24 to change its position on the arm segment. The slide block 41 is usually provided with a set screw, which can be tightened after sliding into place to lock the slide block 41 on the slide rails 24. The inner end of the hinge arm 42 is rotatably connected to the outer end of the slide block 41 by bolts; The articulated arm 42 is a hollow tubular structure. The inner end of the telescopic arm 43 is slidably connected inside the articulated arm 42. The outer end of the telescopic arm 43 is connected to the clamping head module 6. The articulated arm 42 is rotatably connected to a threaded rod 44. The threaded rod 44 can rotate around its own axis but cannot move axially. The outer end of the threaded rod 44 is threadedly connected to the telescopic arm 43. The inner end of the threaded rod 44 is connected to a handwheel. When the handwheel is turned, the threaded rod 44 rotates, driving the telescopic arm 43 to move linearly along the axial direction of the articulated arm 42, thus extending or retracting. The screw drive has self-locking properties and can lock the telescopic length at any position. The outer end of the telescopic arm 43 is fixedly connected to the main body shell 61 of the clamping head module 6 through a flange or thread. The slide 41, articulated arm 42, telescopic arm 43, threaded rod 44 and its handwheel together constitute a complete, sliding, flip-up and telescopic support arm 4.

[0028] Furthermore, the telescopic support arm 2 5 includes a hinged arm 2 51, a telescopic arm 2 52, and a threaded rod 53; The extension arm 3 has elongated guide grooves 34 on both sides; The inner end of the second articulated arm 51 has two outwardly extending threaded posts 511 on both sides. The threaded posts 511 are slidably connected in the guide groove 34. The threaded posts 511 pass through the guide groove 34, so that the second articulated arm 51 can slide along the guide groove 34. The end of the threaded post 511 is threadedly connected to a nut, and the nut abuts against the outer surface of the extension arm 3. When the sliding adjustment is in place, tighten the nut so that its end face presses against the outer wall of the extension arm 3, and the second articulated arm 51 can be firmly locked on the extension arm 3. The inner end of the telescopic arm 2 52 is slidably connected to the hinge arm 2 51, and the outer end of the telescopic arm 2 52 is connected to the clamping head module 6. The hinge arm 2 51 is rotatably connected to a threaded rod 53. The outer end of the threaded rod 53 is threadedly connected to the telescopic arm 2 52, and the inner end of the threaded rod 53 is connected to a handwheel. The internal structure of the hinge arm 2 51 is similar to that of the hinge arm 1 42: it is equipped with a rotatable threaded rod 53. The outer end of the threaded rod 53 is threadedly connected to the telescopic arm 2 52, and the inner end is connected to a handwheel. Rotating the handwheel can drive the telescopic arm 2 52 to extend or retract.

[0029] Furthermore, a wedge-shaped locking block 231 is slidably connected to the inner wall of the through groove on the second support arm 23. A spring 232 is installed on the side of the locking block 231 away from the through groove. One end of the spring 232 is installed on the second support arm 23 and is used to engage the telescopic support arm 4 and the clamping head module 6. When the clamping head module 6 is pushed to the predetermined position, it squeezes the locking block 231 to retract and compress the spring 232. When the clamping head module 6 passes the locking block 231, the spring 232 pushes the locking block 231 to reset, and its head locks the boss on the module housing or telescopic arm to prevent it from retracting. A locking block 35 is slidably connected inside the extension arm 3. A spring 36 is installed on the side of the locking block 35 near the outer end of the extension arm 3. One end of the spring 36 is installed on the extension arm 3 to engage the telescopic support arm 25 and the clamping head module 6. When the clamping head module 6 is pushed to the predetermined position, the locking block 35 causes it to retract and compress the spring 36. When the clamping head module 6 passes the locking block 35, the spring 36 pushes the locking block 35 back to its original position, and its head locks the housing of the clamping head module 6 to prevent it from retracting. After the internal components are retracted, the external boom (extension arm 2 and extension arm 3) begins to retract. The extension arm 3 is lifted upwards, causing it to rotate around the hinge point with the support arm 23 to a vertical position (at this time, each arm segment may be in the following position). Figure 3 (As shown in the semi-retracted transition state). Then, simultaneously lift the extension arm 2 (including arm 1 22 and arm 2 23) upwards, causing it to rotate around the hinge point with the bearing platform 1, ultimately so that all extension arms 3 and extension arms 2 are vertically upwards and joined together around the bearing platform 1, as shown. Figure 2 As shown, a protective cage is formed with an open top but surrounded by a boom, which facilitates storage.

[0030] A method for using a clamping device for the restoration of pottery artifacts includes the following steps: Step 1: Place the pottery artifact to be restored on the support platform 1; Step 2: Release the elastic band 32 from the extension arm 3, and unfold the extension arm 2 and the extension arm 3 from the folded state outward and downward until the bottom surface of the support arm 1 22 abuts against the limiting plate 1 13 or the bottom surface of the support arm 23 / extension arm 3 abuts against the corresponding limiting plate 21, so that it is in a flat state, forming an extended working platform centered on the support platform 1. Step 3: Based on the size, shape, and location of the damage to the pottery artifact, plan the clamping points: Slide the slide block 41 along the slide rail 24, adjust the radial position of the telescopic support arm 4 on the support arm 22 and the support arm 23, and lock it with the set screw; slide the hinge arm 51 along the guide groove 34, adjust the position of the telescopic support arm 5 on the extension arm 3, and tighten the nut at the end of the threaded column 511 to press it firmly against the outer surface of the extension arm 3; Step 4: Rotate the handwheels of threaded rod 44 and threaded rod 53 to drive telescopic arm 43 and telescopic arm 52 to extend along their axial direction, so that each clamping head module 6 is approximately close to the predetermined clamping point on the surface of the artifact; then, flip hinge arm 42 and hinge arm 51 and adjust their angle so that the suction cups of the clamping head module 6 can face and approach the surface of the artifact to be clamped. Step 5: Fine-tune the lengths of telescopic arm 43 and telescopic arm 52 to ensure that each suction cup adheres to the surface of the artifact; activate air pump 62 to generate negative pressure inside the suction cups through the internal channels of connecting pipe 66 and telescopic rod 64, thereby firmly adhering them to the surface of the artifact; activate air pump 63 to drive the telescopic rod 64 to make slight axial movements by adjusting the air pressure in the inner cavity 611. Combined with the flexible deformation of the flexible connecting sleeve 65, the suction cups adapt to the microscopic unevenness of the artifact surface while maintaining adsorption, achieving flexible and stable clamping. Step 6: After checking that all clamping points are secure and reliable, start motor 12 to drive the support platform 1 and the pottery artifacts clamped and fixed on it to rotate slowly and steadily, so that the restorers can clean, assemble, glue, and repair the artifacts from all angles. Step 7: After the repair work is completed, first turn off air pump 1 (62) and air pump 2 (63) to release the suction force and micro-motion pressure of the suction cup. Step 8: Adjust the relative positions of telescopic support arm 1 (4) and telescopic support arm 2 (5) so that they can clamp the pottery artifact, and the extension arm 2 and extension arm 3 are in a vertically retracted state, completing the retraction and locking of the device. At this time, the device forms a protective frame, which can safely transfer the restored pottery artifact.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for the restoration of pottery artifacts, characterized in that: Includes a base (1), the outer periphery of which is rotatably connected to an extension arm (2), and the outer end of the extension arm (2) is rotatably connected to an extension arm (3). The extended arm (2) is internally slidably provided with a first telescopic support arm (4) having flip and telescopic functions, and the extended arm (3) is internally slidably provided with a second telescopic support arm (5) having flip and telescopic functions. The outer ends of the first telescopic support arm (4) and the second telescopic support arm (5) are both equipped with clamping head modules (6). The extended support arm (2) and the extension arm (3) are in a flattened state for extending the bearing platform of the support (1), and the extended support arm (2) and the extension arm (3) are in a retracted state for protecting and transferring pottery artifacts.

2. The pottery artifact restoration clamping device according to claim 1, characterized in that: The clamping head module (6) includes a main body shell (61), an air pump one (62), an air pump two (63), a telescopic rod (64), and a connecting pipe (66). The main body shell (61) has an inner cavity (611) inside. The telescopic rod (64) is slidably connected to the outer end of the main body shell (61) and communicates with the inner cavity (611). The air pump (62) is installed on one side of the main body shell (61) and communicates with the inside of the inner cavity (611). The telescopic rod (64) is fitted with a connecting pipe (66) at the inner end of the inner cavity (611), and a suction cup is fitted at the outer end of the telescopic rod (64) outside the inner cavity (611). The connecting pipes (66) are connected to each other. The second air pump (63) is installed on one side of the main body shell (61), and the second air pump (63) is connected to the suction cup through the connecting pipe (66).

3. The pottery artifact restoration clamping device according to claim 2, characterized in that: The clamping head module (6) also includes a flexible connecting sleeve (65); The outer side of the outer end of the telescopic rod (64) is connected to a flexible connecting sleeve (65), which has the characteristic of flexible deformation.

4. The pottery artifact restoration clamping device according to claim 3, characterized in that: The bottom of the support platform (1) is provided with a support seat (11), the support platform (1) is rotatably connected to the top of the support seat (11), and the bottom of the support seat (11) is provided with a support leg in the circumferential direction. A motor (12) is installed at the center of the bottom of the support base (11), and the output shaft of the motor (12) is connected to the center of the bottom of the support base (1).

5. The pottery artifact restoration clamping device according to claim 4, characterized in that: The outer side of the outer end of the extension arm (3) is provided with a connecting lug (31). When the extended arm (3) is in the retracted state, it is in a vertical state and the connecting lug (31) is on the outside; An elastic band (32) is inserted between the connecting lugs (31), and a snap fastener (33) is provided between the two ends of the elastic band (32).

6. The pottery artifact restoration clamping device according to claim 5, characterized in that: The extended support arm (2) includes a limiting platform two (21), a support arm one (22), a support arm two (23), and a slide rail (24). The inner end of the first support arm (22) is rotatably connected to the outer periphery of the support platform (1) by bolts, the inner end of the second support arm (23) is rotatably connected to the outer end of the first support arm (22) by bolts, and the outer end of the second support arm (23) is rotatably connected to the inner end of the extension arm (3) by bolts. One side of the first support arm (22) and the second support arm (23) is provided with a through groove, and the inner walls on both sides of the through groove are equipped with slide rails (24). The other side of the first support arm (22) and the second support arm (23) is equipped with a limiting platform (21). The limiting platform (21) can contact the second support arm (23) and the extension arm (3) respectively, and is used to support the second support arm (23) and the extension arm (3) in a flattened state. The bottom of the support platform (1) is equipped with a limiting plate (13), which can contact the support arm (22) to support the support arm (22) in a flattened state.

7. The pottery artifact restoration clamping device according to claim 6, characterized in that: The telescopic support arm (4) includes a slide (41), a hinge arm (42), a telescopic arm (43), and a threaded rod (44). The slide block (41) is slidably connected between the slide rails (24); The inner end of the hinge arm (42) is rotatably connected to the outer end of the slide (41) by bolts; The inner end of the telescopic arm (43) is slidably connected to the hinge arm (42), the outer end of the telescopic arm (43) is connected to the clamping head module (6), the hinge arm (42) is rotatably connected to the threaded rod (44), the outer end of the threaded rod (44) is threadedly connected to the telescopic arm (43), and the inner end of the threaded rod (44) is connected to a handwheel.

8. The pottery artifact restoration clamping device according to claim 7, characterized in that: The telescopic support arm 2 (5) includes a hinged arm 2 (51), a telescopic arm 2 (52), and a threaded rod (53); Guide grooves (34) are provided on both sides of the extension arm (3); The inner ends of the second hinge arm (51) are provided with threaded posts (511) on both sides. The threaded posts (511) are slidably connected in the guide groove (34). The ends of the threaded posts (511) are threaded with nuts, and the nuts abut against the outer surface of the extension arm (3). The inner end of the telescopic arm 2 (52) is slidably connected to the hinge arm 2 (51), the outer end of the telescopic arm 2 (52) is connected to the clamping head module (6), the inner end of the hinge arm 2 (51) is rotatably connected to a threaded rod (53), the outer end of the threaded rod (53) is threadedly connected to the telescopic arm 2 (52), and the inner end of the threaded rod (53) is connected to a handwheel.

9. The pottery artifact restoration clamping device according to claim 8, characterized in that: The inner wall of the through groove on the second support arm (23) is slidably connected to a first locking block (231). A first spring (232) is installed on the side of the first locking block (231) away from the through groove. One end of the first spring (232) is installed on the second support arm (23) for locking the telescopic support arm (4) and the clamping head module (6). The extension arm (3) is slidably connected to a second locking block (35). A second spring (36) is installed on the side of the second locking block (35) near the outer end of the extension arm (3). One end of the second spring (36) is installed on the extension arm (3) for locking the telescopic support arm (5) and the clamping head module (6).

10. A method of using the pottery artifact restoration clamping device according to claim 9, characterized in that, Includes the following steps: Step 1: Place the pottery artifact to be restored on the support platform (1); Step 2: Release the elastic band (32) from the extension arm (3), and unfold the extension arm (2) and the extension arm (3) from the folded state outward and downward until the bottom surface of the first support arm (22) abuts against the first limiting plate (13) or the bottom surface of the second support arm (23) / extension arm (3) abuts against the corresponding limiting plate (21), so that it is in a flat state, forming an extended working platform centered on the support platform (1); Step 3: Based on the size, shape and location of the broken pottery artifact, plan the clamping points: slide the slide block (41) along the slide rail (24), adjust the radial position of the telescopic support arm 1 (4) on the support arm 1 (22) and support arm 2 (23), and lock it with the set screw; slide the hinge arm 2 (51) along the guide slide groove (34), adjust the position of the telescopic support arm 2 (5) on the extension arm (3), and tighten the nut at the end of the threaded column (511) to press and fix it against the outer surface of the extension arm (3); Step 4: Rotate the handwheels of threaded rod 1 (44) and threaded rod 53 to drive telescopic arm 1 (43) and telescopic arm 2 (52) to extend along their axial direction, so that each clamping head module (6) is approximately close to the predetermined clamping point on the surface of the artifact; then, flip hinge arm 1 (42) and hinge arm 2 (51) and adjust their angle so that the suction cups of the clamping head module (6) can face and approach the surface of the artifact to be clamped; Step 5: Fine-tune the lengths of telescopic arm 1 (43) and telescopic arm 2 (52) to make each suction cup adhere to the surface of the artifact; start air pump 1 (62), and through the internal channels of connecting pipe (66) and telescopic rod (64), generate negative pressure inside the suction cup, thereby firmly adhering to the surface of the artifact; start air pump 2 (63), and by adjusting the air pressure in the inner cavity (611), drive the telescopic rod (64) to make a small axial movement, combined with the flexible deformation of the flexible connecting sleeve (65), so that the suction cup can adapt to the micro-unevenness of the artifact surface while maintaining adsorption, and achieve flexible and stable clamping; Step 6: After checking that all clamping points are secure and reliable, start the motor (12) to drive the support platform (1) and the pottery artifacts clamped and fixed on it to rotate slowly and smoothly, so that the restorers can clean, assemble, glue, and repair the artifacts from all angles. Step 7: After the repair work is completed, first turn off air pump one (62) and air pump two (63) to release the suction force and micro-motion pressure of the suction cup; Step 8: Adjust the relative positions of telescopic support arm 1 (4) and telescopic support arm 2 (5) so that telescopic support arm 1 (4) and telescopic support arm 2 (5) can be in a clamping state for the pottery artifact, and the extension arm (2) and extension arm (3) are in a vertically retracted state, completing the retraction and locking of the device. At this time, the device forms a protective frame, which can safely transfer the restored pottery artifact.

Images