Special clamp for ceramic sculpture cultural relic protection and repair

Abstract

The utility model relates to a special fixture for ceramic sculpture cultural relic protection and repair, which comprises a base and two clamping and pressing mechanisms, an object placing plane is formed on the top surface of the base, the length direction of the object placing plane is called as the left-right direction, and the direction on the object placing plane perpendicular to the left-right direction is called as the front-back direction. The direction perpendicular to the object placing plane is the up-down direction; the two clamping and pressing mechanisms are arranged on the left side and the right side of the center position of the containing plane correspondingly. The clamping and pressing mechanism comprises an upper clamping and pressing assembly and a lower clamping and pressing assembly, the upper clamping and pressing assembly can slide and move in the front-back direction and the up-down direction relative to the base, the lower clamping and pressing assembly can slide and move in the front-back direction relative to the base, and the upper clamping and pressing assembly and the lower clamping and pressing assembly are each provided with a clamping and pressing end capable of stretching and retracting in the left-right direction relative to the base. The clamping and pressing ends of the upper clamping and pressing assemblies of the two clamping and pressing mechanisms are close to each other through telescopic motion so as to conduct clamping and pressing motion, and the clamping and pressing ends of the lower clamping and pressing assemblies of the two clamping and pressing mechanisms are close to each other through telescopic motion so as to conduct clamping and pressing motion.

Description

Technical Field

[0001] The utility model relates to the technical field of cultural relic restoration equipment, in particular to a special clamp for protecting and restoring ceramic cultural relics. Background Art

[0002] Ceramic artifacts hold significant cultural and historical value, making their restoration crucial. Currently, the method for restoring ceramic artifacts involves manually supporting and fixing them, then filling in the damaged parts. However, this manual support method is prone to shaking or shifting, making it particularly effective for artifacts that have been broken into two remaining parts. This method, in particular, results in less than ideal restoration results. Utility Model Content

[0003] The purpose of the utility model is to provide a special fixture for protecting and repairing ceramic cultural relics, which has the advantages of simple structure, reasonable design, good fixing effect, etc.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a special clamp for the protection and restoration of ceramic cultural relics, comprising a base and two clamping and pressing mechanisms, a placement plane is formed on the top surface of the base, the length direction of the placement plane is called the left-right direction, the direction perpendicular to the left-right direction on the placement plane is called the front-back direction, and the direction perpendicular to the placement plane is called the up-down direction; the two clamping and pressing mechanisms are respectively arranged on the left and right sides of the center position of the placement plane; each clamping and pressing mechanism comprises an upper clamping and pressing assembly and a lower clamping and pressing assembly, the upper clamping and pressing assembly can slide relative to the base in the front-back direction and the up-down direction, the lower clamping and pressing assembly can slide relative to the base in the front-back direction, the upper clamping and pressing assembly and the lower clamping and pressing assembly are both provided with clamping ends that can be telescopically moved relative to the base in the left-right direction; the clamping ends of the upper clamping and pressing assemblies of the two clamping and pressing mechanisms approach each other through a telescopic action to perform a clamping and pressing action, and the clamping ends of the lower clamping and pressing assemblies of the two clamping and pressing mechanisms approach each other through a telescopic action to perform a clamping and pressing action.

[0005] The working principle of this utility model:

[0006] The utility model is used in conjunction with a ceramic cultural relic that is broken into two residual parts, and the two residual parts of the ceramic cultural relic are respectively referred to as a first residual part and a second residual part. When in use, the target positions of the first residual part and the second residual part are determined according to the expected structure of the ceramic cultural relic after repair; the upper clamping components of the two clamping mechanisms are moved to the opposite sides of the target position of the first residual part by sliding up and down and sliding forward and backward, and the lower clamping components of the two clamping mechanisms are moved to the opposite sides of the target position of the second residual part by sliding forward and backward; the first residual part is placed at the target position, and the clamping ends of the upper clamping components of the two clamping mechanisms are operated to clamp and fix the first residual part; the second residual part is placed at the target position, and the clamping ends of the lower clamping components of the two clamping mechanisms are operated to clamp and fix the second residual part; in this way, the two residual parts of the ceramic cultural relic are fixed and positioned at the same time without shaking or offsetting, and the fixing effect is good, which is convenient for filling and repairing the damaged parts of the ceramic cultural relic, and is conducive to achieving ideal results in the repair of the ceramic cultural relic.

[0007] Furthermore, as described above, in a special clamp for the protection and restoration of ceramic cultural relics, the clamping mechanism also includes a movable seat, which is slidably arranged on the storage plane of the base, and can slide relative to the base in the front and rear directions; the upper clamping assembly can be slidably installed on the movable seat, and the upper clamping assembly can slide relative to the movable seat in the up and down directions; the lower clamping assembly can be slidably installed on the movable seat, and the lower clamping assembly can slide relative to the movable seat in the front and rear directions.

[0008] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod being a bottom end of said sticking rod and said adjusting base is pivotally connected to said linking rod.

[0009] Furthermore, as described above, a special fixture for the protection and restoration of ceramic cultural relics, two first slide rails are installed on the storage plane of the base, each first slide rail is arranged along the front and rear directions, and a first slide rail corresponds to a clamping mechanism; the movable seat of the clamping mechanism includes a movable slider, a mounting vertical plate, a second slide rail and a third slide rail; the movable slider is slidably mounted on the corresponding first slide rail; the mounting vertical plate is mounted on the movable slider, and the mounting vertical plate is arranged perpendicular to the left and right directions, and a first limiting slide hole, a second limiting slide hole and a third limiting slide hole are formed on the mounting vertical plate, and the length directions of the first limiting slide hole and the second limiting slide hole are respectively arranged along the up and down directions, and the length direction of the third limiting slide hole is along the front and back directions. The cam is mounted on a vertical plate, and the cam is mounted on a vertical plate. The cam is mounted on a vertical plate, and the cam is mounted on a vertical plate. The cam is mounted on a vertical plate, and the cam is mounted on a horizontal plate. The first guide hole and the first adjustment hole are formed on the clamping plate of the pressing assembly and the lower clamping assembly, and the second guide hole and the second adjustment hole are formed on the sliding slider of the upper clamping assembly and the lower clamping assembly. The hole axis of the first guide hole of the upper clamping assembly and the lower clamping assembly are collinearly arranged to form a guide hole structure, and the hole axis of the first adjustment hole of the upper clamping assembly and the lower clamping assembly are collinearly arranged to form an adjustment hole structure, and the elastic members of the upper clamping assembly and the lower clamping assembly are compressively arranged between the clamping plate and the clamping seat; the sliding slider of the upper clamping assembly can be slidably installed on the second slide rail, and the clamping plate of the upper clamping assembly is in the installation position. On the side of the vertical plate facing away from the second slide rail, one end of the screw rod of the upper clamping assembly passes through the first adjusting hole, the first limiting slide hole, the first giving way hole and the second adjusting hole in sequence, and one end of the guide rod of the upper clamping assembly passes through the first guide hole, the second limiting slide hole and the second guide hole in sequence; the sliding slider of the lower clamping assembly can be slidably installed on the third slide rail, and the clamping plate of the lower clamping assembly is at the side of the vertical plate facing away from the third slide rail, and one end of the screw rod of the lower clamping assembly passes through the first adjusting hole, the third limiting slide hole, the second giving way hole and the second adjusting hole in sequence, and one end of the guide rod of the upper clamping assembly passes through the first guide hole, the third limiting slide hole, the second giving way hole and the second guide hole in sequence.

[0010] Furthermore, as described above, in a special clamp for the protection and restoration of ceramic cultural relics, the adjusting parts of the upper clamping assembly and the lower clamping assembly respectively include a nut portion and a handwheel portion, the nut portion is threadedly connected to the screw and rests on the side of the sliding seat facing away from the clamping seat, and the handwheel portion is arranged on the side of the nut portion facing away from the sliding seat.

[0011] Furthermore, in the aforementioned special fixture for protecting and restoring ceramic cultural relics, the clamping ends of the upper clamping assembly and the lower clamping assembly are each provided with a soft pad.

[0012] Furthermore, the special fixture for protecting and restoring ceramic cultural relics as described above also includes a base, a mounting ring groove is formed on the top surface of the base; a mounting convex ring is formed on the bottom surface of the base, and the mounting convex ring of the base is embedded in the mounting ring groove of the base, so that the base can rotate relative to the base, and the rotation axis of the base is set close to the center position of the placement plane.

[0013] Furthermore, in the aforementioned special fixture for protecting and restoring ceramic cultural relics, a plurality of supporting legs are provided on the bottom surface of the base.

[0014] The technical solution of the utility model has the following beneficial effects: simple structure, reasonable design, good fixing effect, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of an embodiment;

[0016] Figure 2 It is a front view of an embodiment;

[0017] Figure 3 It is a right side view of the embodiment;

[0018] Figure 4 This is a three-dimensional structural diagram of the embodiment after the base is removed;

[0019] Figure 5 A three-dimensional structural diagram of a base according to an embodiment;

[0020] Description of reference numerals:

[0021] 1-base; 11-storage plane; 12-mounting convex ring; 13-first slide rail; 2-clamping mechanism; 21-upper clamping assembly; 22-lower clamping assembly; 211-sliding seat; 2111-sliding slider; 2112-clamping plate; 212-clamping seat; 213-guide rod; 214-screw; 215-elastic member; 216-adjusting member; 217-cushion; 218-second bolt; 23-moving seat; 231-moving slider; 232-mounting vertical plate; 2321-first limiting slide hole; 2322-second limiting slide hole; 2323-third limiting slide hole; 233-second slide rail; 2331-first clearance hole; 234-third slide rail; 2341-second clearance hole; 24-first bolt; 3-base; 31-mounting ring groove; 32-support foot. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 5 The embodiment of the invention is a special fixture for the protection and restoration of ceramic cultural relics, comprising a base 1 and two clamping mechanisms 2. A placement plane 11 is formed on the top surface of the base 1. The length direction of the placement plane 11 is called the left-right direction, the direction perpendicular to the left-right direction on the placement plane 11 is called the front-back direction, and the direction perpendicular to the placement plane 11 is called the up-down direction; the two clamping mechanisms 2 are respectively arranged on the left and right sides of the center position of the placement plane 11; each clamping mechanism 2 includes an upper clamping component 21 and a lower clamping component 22. The upper clamping assembly 21 can slide relative to the base 1 in the front-to-back direction and the up-to-down direction, and the lower clamping assembly 22 can slide relative to the base 1 in the front-to-back direction. Both the upper clamping assembly 21 and the lower clamping assembly 22 are provided with clamping ends that can be telescopically moved in the left-to-right direction relative to the base 1; the clamping ends of the upper clamping assemblies 21 of the two clamping mechanisms 2 are brought close to each other through telescopic action to perform the clamping action, and the clamping ends of the lower clamping assemblies 22 of the two clamping mechanisms 2 are brought close to each other through telescopic action to perform the clamping action.

[0024] The working principle of this embodiment is as follows:

[0025] This embodiment is used in conjunction with a ceramic artifact that has been broken into two residual parts, the two residual parts of the ceramic artifact being referred to as a first residual part and a second residual part, respectively. During use, the target positions of the first residual part and the second residual part are determined based on the expected structure of the ceramic artifact after repair; the upper clamping components 21 of the two clamping mechanisms 2 are moved to opposite sides of the target position of the first residual part by sliding up and down and forward and backward, and the lower clamping components 22 of the two clamping mechanisms 2 are moved to opposite sides of the target position of the second residual part by sliding forward and backward; the first residual part is placed at the target position, and the clamping ends of the upper clamping components 21 of the two clamping mechanisms 2 are operated to clamp and fix the first residual part; the second residual part is placed at the target position, and the clamping ends of the lower clamping components 22 of the two clamping mechanisms 2 are operated to clamp and fix the second residual part; thereby, the two residual parts of the ceramic artifact are simultaneously fixed and positioned without shaking or offsetting, and the fixing effect is good, which facilitates the filling and repair of the damaged parts of the ceramic artifact, and is conducive to achieving ideal results in the restoration of the ceramic artifact.

[0026] like Figures 1 to 3 As shown, the clamping mechanism 2 further includes a movable seat 23, which is slidably disposed on the storage plane 11 of the base 1 and can slide relative to the base 1 in the front-to-back direction; an upper clamping assembly 21 is slidably mounted on the movable seat 23 and can slide relative to the movable seat 23 in the up-down direction; and a lower clamping assembly 22 is slidably mounted on the movable seat 23 and can slide relative to the movable seat 23 in the front-to-back direction. This design allows the entire clamping mechanism 2 to slide relative to the base 1, making it easier to adjust the positions of the upper and lower clamping assemblies 21 and 22 in the front-to-back direction.

[0027] like Figures 1 to 4As shown, the upper clamping assembly 21 and the lower clamping assembly 22 each include a sliding seat 211, a clamping seat 212, a guide rod 213, a screw 214, an elastic member 215 and an adjusting member 216; the sliding seat 211 is slidably arranged on the base 1, and a guide hole structure and an adjusting hole structure are formed on the sliding seat 211, and the hole axes of the guide hole structure and the adjusting hole structure are arranged in parallel; one side of the clamping seat 212 is the clamping end, and the other side of the clamping seat 212 is the mounting surface, and one end of each of the guide rod 213 and the screw 214 is mounted on the mounting surface, and the length directions of the guide rod 213 and the screw 214 are perpendicular to the mounting surface The guide rod 213 is slidably inserted into the guide hole structure of the sliding seat 211, and the screw rod 214 is slidably inserted into the adjustment hole structure of the sliding seat 211, so that the clamping seat 212 can slide relative to the sliding seat 211 and move closer to or away from each other; the elastic member 215 is a spring, which is sleeved on the guide rod 213 and compressed between the clamping seat 212 and the sliding seat 211; the adjustment member 216 is threadedly connected to the screw rod 214 and abuts against the side of the sliding seat 211 facing away from the clamping seat 212, so that the adjustment member 216 can drive the clamping seat 212 to slide by rotating. Through this structure, the adjustment operation of the clamping end of each of the upper clamping assembly 21 and the lower clamping assembly 22 is more convenient.

[0028] like Figures 1 to 4As shown, two first slide rails 13 are installed on the storage plane 11 of the base 1, and each first slide rail 13 is arranged along the front-back direction, and one first slide rail 13 corresponds to one clamping mechanism 2; the movable seat 23 of the clamping mechanism 2 includes a movable slider 231, a mounting vertical plate 232, a second slide rail 233 and a third slide rail 234; the movable slider 231 is slidably mounted on the corresponding first slide rail 13; the mounting vertical plate 232 is mounted on the movable slider 231, and the mounting vertical plate 232 is perpendicular to the left and right directions, and a first limiting slide hole 2321, a second limiting slide hole 2322 and a third limiting slide hole 2323 are formed on the mounting vertical plate 232, and the length directions of the first limiting slide hole 2321 and the second limiting slide hole 2322 are respectively along the upper and lower directions. The third slide rail 234 is arranged in the front-to-back direction, and the length direction of the third limiting slide hole 2323 is arranged along the front-to-back direction; the second slide rail 233 and the third slide rail 234 are both installed on the same side of the mounting vertical plate 232; the second slide rail 233 is arranged in the up-down direction, and a first clearance hole 2331 is formed on the second slide rail 233, and the hole profile of the first clearance hole 2331 is the same as the hole profile of the first limiting slide hole 2321, and the first clearance hole 2331 is directly opposite to the first limiting slide hole 2321; the third slide rail 234 is arranged in the front-to-back direction, and a second clearance hole 2341 is formed on the second slide rail 233, and the hole profile of the second clearance hole 2341 is the same as the hole profile of the third limiting slide hole 2323, and the second clearance hole 2341 is directly opposite to the third limiting slide hole 2323 Directly opposite; the sliding seat 211 of the upper clamping and pressing component 21 and the lower clamping and pressing component 22 respectively includes a sliding slider 2111 and a clamping plate 2112, and the clamping plate 2112 of the upper clamping and pressing component 21 and the lower clamping and pressing component 22 is located between the sliding slider 2111 and the clamping and pressing seat 212, and the first guide hole and the first adjustment hole are formed on the clamping plate 2112 of the upper clamping and pressing component 21 and the lower clamping and pressing component 22, respectively. The sliding slider 2111 of the upper clamping and pressing component 21 and the lower clamping and pressing component 22 are respectively formed with a second guide hole and a second adjustment hole, and the hole axis of the first guide hole of the upper clamping and pressing component 21 and the lower clamping and pressing component 22 are collinearly arranged to form a guide hole structure, and the first adjustment hole of the upper clamping and pressing component 21 and the lower clamping and pressing component 22 The hole axis and the hole axis of the second adjustment hole are arranged collinearly to form an adjustment hole structure, and the elastic members 215 of the upper clamping and pressing assembly 21 and the lower clamping and pressing assembly 22 are respectively arranged in a compressive manner between the clamping and pressing plate 2112 and the clamping and pressing seat 212; the sliding slider 2111 of the upper clamping and pressing assembly 21 is slidably mounted on the second slide rail 233, and the clamping and pressing plate 2112 of the upper clamping and pressing assembly 21 is located on the side of the mounting vertical plate 232 facing away from the second slide rail 233, and one end of the screw rod 214 of the upper clamping and pressing assembly 21 passes through the first adjustment hole, the first limiting slide hole 2321, the first giving way hole 2331 and the second adjustment hole in sequence, and one end of the guide rod 213 of the upper clamping and pressing assembly 21 passes through the first guide hole, the second limiting slide hole 2322 and the second guide hole in sequence;The sliding block 2111 of the lower clamping assembly 22 is slidably mounted on the third slide rail 234. The clamping plate 2112 of the lower clamping assembly 22 is located on the side of the mounting vertical plate 232 facing away from the third slide rail 234. One end of the screw rod 214 of the lower clamping assembly 22 passes through the first adjustment hole, the third limit slide hole 2323, the second clearance hole 2341, and the second adjustment hole in sequence. One end of the guide rod 213 of the upper clamping assembly 21 passes through the first guide hole, the third limit slide hole 2323, the second clearance hole 2341, and the second guide hole in sequence. With such a structure, the range of motion of the upper and lower clamping assemblies 21 and 22 relative to the movable seat 23 can be limited, thereby preventing the upper and lower clamping assemblies 21 and 22 from being too large in range of motion and detaching from the movable seat 23. In addition, a first screw hole is formed on the movable slider 231, and the clamping mechanism also includes a first bolt 24. One end of the first bolt 24 is threadedly connected to the first screw hole and is placed on the storage plane 11, thereby fixing the movable slider 231 in position. A second screw hole is formed on the sliding slider 2111 of each of the upper clamping assembly 21 and the lower clamping assembly 22. The upper clamping assembly 21 and the lower clamping assembly 22 each include a second bolt 218. One end of the second bolt 218 is threadedly connected to the second screw hole and is placed on the mounting riser 232, thereby fixing the sliding slider 2111 in position. Through this design, the upper clamping assembly 21 and the lower clamping assembly 22 can be fixed in position after being moved into position.

[0029] like Figures 1 to 4 As shown, the adjusting member 216 of each of the upper clamping assembly 21 and the lower clamping assembly 22 includes a nut portion and a handwheel portion. The nut portion is threadedly connected to the screw rod 214 and abuts against the side of the sliding seat 211 facing away from the clamping seat 212, and the handwheel portion is provided on the side of the nut portion facing away from the sliding seat 211. The provision of the handwheel portion allows the user to conveniently operate the adjusting member 216 of each of the upper clamping assembly 21 and the lower clamping assembly 22, thereby making the adjustment operation of the clamping end of each of the upper clamping assembly 21 and the lower clamping assembly 22 more convenient.

[0030] like Figures 1 to 4 As shown, the upper clamping assembly 21 and the lower clamping assembly 22 are each provided with a soft pad 217 on their respective clamping ends. By providing the soft pad 217, the contact area of ​​the upper clamping assembly 21 and the lower clamping assembly 22 on the clamped object can be increased, further improving the fixing effect of the clamp.

[0031] like Figures 1 to 5As shown, this embodiment further includes a base 3, with a mounting ring groove 31 formed on the top surface of the base 3; a mounting protrusion 12 is formed on the bottom surface of the base 1, and the mounting protrusion 12 of the base 1 is embedded in the mounting ring groove 31 of the base 3, so that the base 1 can rotate relative to the base 3, and the rotation axis of the base 1 is arranged near the center of the storage plane 11; four supporting feet 32 ​​are provided on the bottom surface of the base 3. When in use, the base 3 is placed and fixed on a storage platform such as the ground or a table. During the process of filling and repairing the damaged part of the ceramic cultural relic, the user can manually push the base 1 to rotate relative to the base 3, so that the ceramic cultural relic clamped and fixed on the two clamping mechanisms 2 can rotate relative to the base 3 to facilitate the repair work.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications, combinations, and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be within the scope of the claims of the present invention.

Claims

1. A special fixture for the protection and restoration of ceramic cultural relics, characterized by: The utility model comprises a base and two clamping mechanisms, a storage plane is formed on the top surface of the base, the length direction of the storage plane is called the left-right direction, the direction perpendicular to the left-right direction on the storage plane is called the front-back direction, and the direction perpendicular to the storage plane is called the up-down direction; the two clamping mechanisms are respectively arranged on the left and right sides of the center position of the storage plane; each clamping mechanism comprises an upper clamping assembly and a lower clamping assembly, the upper clamping assembly can slide relative to the base in the front-back direction and the up-down direction, the lower clamping assembly can slide relative to the base in the front-back direction, and the upper clamping assembly and the lower clamping assembly are both provided with clamping ends that can be telescopically moved in the left-right direction relative to the base; the clamping ends of the upper clamping assemblies of the two clamping mechanisms approach each other through telescopic action to perform clamping action, and the clamping ends of the lower clamping assemblies of the two clamping mechanisms approach each other through telescopic action to perform clamping action.

2. The special fixture for protecting and restoring ceramic cultural relics according to claim 1, characterized in that: The clamping mechanism also includes a movable seat, which is slidably arranged on the storage plane of the base, and can slide relative to the base in the front and rear directions; an upper clamping assembly is slidably installed on the movable seat, and can slide relative to the movable seat in the up and down directions; a lower clamping assembly is slidably installed on the movable seat, and can slide relative to the movable seat in the front and rear directions.

3. The special fixture for protecting and restoring ceramic cultural relics according to claim 2, characterized in that: The upper clamping assembly and the lower clamping assembly both include a sliding seat, a clamping seat, a guide rod, a screw, an elastic member and an adjusting member; the sliding seat can be slidably arranged on the base, and a guide hole structure and an adjusting hole structure are formed on the sliding seat, and the hole axes of the guide hole structure and the adjusting hole structure are arranged in parallel; one side of the clamping seat is the clamping end, and the other side of the clamping seat is the mounting surface, one end of the guide rod and the screw are respectively mounted on the mounting surface, and the length directions of the guide rod and the screw are both arranged perpendicular to the mounting surface, the guide rod can be slidably inserted in the guide hole structure of the sliding seat, and the screw can be slidably inserted in the adjusting hole structure of the sliding seat, so that the clamping seat can slide relative to the sliding seat and approach or move away from each other; the elastic member is compressively arranged between the clamping seat and the sliding seat; the adjusting member is threadedly connected to the screw and rests on the side of the sliding seat facing away from the clamping seat, so that the adjusting member can drive the clamping seat to slide by rotation.

4. The special fixture for protecting and restoring ceramic cultural relics according to claim 3, characterized in that: Two first slide rails are installed on the storage plane of the base, and each first slide rail is arranged along the front and rear directions, and a first slide rail corresponds to a clamping mechanism; the movable seat of the clamping mechanism includes a movable slider, a mounting vertical plate, a second slide rail and a third slide rail; the movable slider is slidably mounted on the corresponding first slide rail; the mounting vertical plate is mounted on the movable slider, and the mounting vertical plate is arranged perpendicular to the left and right directions, and a first limiting slide hole, a second limiting slide hole and a third limiting slide hole are formed on the mounting vertical plate, and the length directions of the first limiting slide hole and the second limiting slide hole are respectively arranged along the up and down directions, and the length direction of the third limiting slide hole is arranged along the front and rear directions; the second slide rail and the third slide rail are both mounted on The cam is fixedly mounted on a support frame, and the cam has a first end fixed to the support frame, and the second end is fixed to the support frame, and the cam has a second end fixed to the support frame. The first guide hole and the first adjustment hole are formed on the pressure plate, and the second guide hole and the second adjustment hole are formed on the sliding slider of the upper clamping assembly and the lower clamping assembly respectively. The hole axis of the first guide hole of the upper clamping assembly and the lower clamping assembly respectively and the hole axis of the second guide hole are collinearly arranged to form a guide hole structure, and the hole axis of the first adjustment hole of the upper clamping assembly and the lower clamping assembly respectively and the hole axis of the second adjustment hole are collinearly arranged to form an adjustment hole structure, and the elastic members of the upper clamping assembly and the lower clamping assembly respectively are compressively arranged between the clamping plate and the clamping seat; the sliding slider of the upper clamping assembly can be slidably installed on the second slide rail, and the clamping plate of the upper clamping assembly is in a position where the vertical plate is installed with its back to the first On that side of the second slide rail, one end of the screw rod of the upper clamping assembly passes through the first adjusting hole, the first limiting slide hole, the first giving way hole and the second adjusting hole in sequence, and one end of the guide rod of the upper clamping assembly passes through the first guide hole, the second limiting slide hole and the second guide hole in sequence; the sliding slider of the lower clamping assembly can be slidably installed on the third slide rail, and the clamping plate of the lower clamping assembly is on the side of the mounting vertical plate facing away from the third slide rail, and one end of the screw rod of the lower clamping assembly passes through the first adjusting hole, the third limiting slide hole, the second giving way hole and the second adjusting hole in sequence, and one end of the guide rod of the upper clamping assembly passes through the first guide hole, the third limiting slide hole, the second giving way hole and the second guide hole in sequence.

5. A special fixture for protecting and restoring ceramic cultural relics according to claim 3 or 4, characterized in that: The adjusting parts of the upper clamping assembly and the lower clamping assembly respectively include a nut part and a handwheel part. The nut part is threadedly connected to the screw and rests on the side of the sliding seat facing away from the clamping seat. The handwheel part is arranged on the side of the nut part facing away from the sliding seat.

6. A special fixture for protecting and restoring ceramic cultural relics according to claim 1, 2, 3 or 4, characterized in that: A soft pad is provided on each clamping end of the upper clamping assembly and the lower clamping assembly.

7. A special fixture for protecting and restoring ceramic cultural relics according to claim 1, 2, 3 or 4, characterized in that: The invention also includes a base, a mounting ring groove is formed on the top surface of the base; a mounting protrusion is formed on the bottom surface of the base, and the mounting protrusion of the base is embedded in the mounting ring groove of the base, so that the base can rotate relative to the base, and the rotation axis of the base is set near the center position of the storage plane.

8. The special fixture for protecting and restoring ceramic cultural relics according to claim 7, characterized in that: A plurality of supporting legs are provided on the bottom surface of the base.

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