A clamping device for display racks of calligraphy and painting artifacts

Abstract

This utility model discloses a clamping device for displaying calligraphy and painting artifacts, including a fixed plate. Two sets of first vertical rods and two sets of second vertical rods are slidably connected to the inner side of the fixed plate. The first and second vertical rods are provided with toothed grooves on opposite sides, and both sets of toothed grooves mesh with spur gears. A first locking mechanism is provided on one side of the fixed plate. Two sets of horizontal rods are slidably connected to the inner side of the connecting seat. A fixing clamp is installed at one end of each set of horizontal rods. A second locking mechanism is provided on one side of the connecting seat. This utility model can unlock or lock the first and second vertical rods through the first locking mechanism to adjust the longitudinal position of the fixing clamps. It can also unlock or lock the two sets of horizontal rods through the second locking mechanism to adjust the lateral position of the fixing clamps. Thus, through the above structure, stable clamping of calligraphy and painting artifacts of different sizes can be achieved, improving adaptability and ease of operation.

Description

Technical Field

[0001] This utility model relates to the field of nursing equipment technology, specifically a clamping device for display racks of calligraphy and painting cultural relics. Background Technology

[0002] During the exhibition, calligraphy and painting artifacts need to be fixed to the display rack using clamping devices to prevent them from shaking, falling off, or being wrinkled or damaged by external forces.

[0003] However, traditional clamping devices mostly use simple clips or fixed frames, which have the problem of difficulty in controlling the clamping force: too much force will compress the cultural relics and cause deformation and damage, while too little force will not be able to fix them stably and will easily cause displacement; moreover, most clamping devices have poor adaptability and cannot meet the clamping needs of calligraphy and painting cultural relics of different sizes, and their use is quite limited; therefore, it is necessary to design a clamping device for display racks of calligraphy and painting cultural relics to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a clamping device for display racks of calligraphy and painting cultural relics, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for display racks of calligraphy and painting artifacts, comprising a fixed plate, two sets of first sliding grooves on the inner side of the fixed plate, a set of second sliding grooves corresponding to one side of each of the two sets of first sliding grooves, a first vertical rod slidably connected to the inner side of each of the two sets of first sliding grooves, a second vertical rod slidably connected to the inner side of each of the two sets of second sliding grooves, toothed grooves on the opposite sides of the first and second vertical rods, a through groove between a corresponding set of first and second sliding grooves, a rotating shaft rotatably connected to the inner side of the through groove, a circular gear meshing with the two sets of toothed grooves on the outer ring of the rotating shaft, a first locking mechanism on one side of the fixed plate for locking the first and second vertical rods, a connecting seat at one end of each of the two sets of first and second vertical rods, two sets of horizontal rods slidably connected to the inner side of the connecting seat, a fixing clamp installed at one end of each of the two sets of horizontal rods, and a second locking mechanism on one side of the connecting seat for locking the two sets of horizontal rods.

[0006] Preferably, the first locking mechanism includes a turntable, a fixing frame is installed on one side of the fixing plate, two sets of partitions are provided on the inner side of the fixing frame, a connecting shaft is rotatably connected between the two sets of partitions, one end of the connecting shaft extends to the outside of the fixing frame and is connected to the turntable, a driving bevel gear is sleeved on the outer ring of the connecting shaft, a first screw is rotatably connected to each of the two sets of partitions, a driven bevel gear meshing with the driving bevel gear is connected to one end of each of the two sets of first screws, a moving block is threadedly connected to the inner side of the fixing frame, a contact seat is provided at one end of each of the two sets of moving blocks, one end of each of the two sets of rotating shafts extends to the inner side of the fixing frame and is rotatably connected thereto, and the two sets of contact seats abut against the two sets of rotating shafts respectively.

[0007] Preferably, one end of the abutment is arranged in an arc shape.

[0008] Preferably, a locking seat is fitted on one side of the fixing frame around the outer ring of the connecting shaft, and the locking seat is threaded with a locking bolt to facilitate locking the connecting shaft.

[0009] Preferably, the second locking mechanism includes a knob, a second screw is rotatably connected to one side of the connecting seat, one end of the second screw is connected to the knob, a connecting plate is threaded to the outer ring of the second screw, and two sets of abutment rods are provided on one side of the connecting plate, one end of each set of abutment rods extends to the inner side of the connecting seat and abuts against the corresponding crossbar.

[0010] Preferably, the fixing clamp includes a clamp base, the inner side of which is provided with an elastic pad layer, the clamp base is threadedly connected to a fixing bolt, one end of which is rotatably connected to an abutment plate, and the surface of the abutment plate is covered with a soft cotton layer.

[0011] Preferably, both ends of the fixing plate are provided with mounting seats.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model allows the first and second vertical rods to be unlocked by operating the first locking mechanism. Then, pulling the second vertical rod causes the sprocket to rotate, which in turn causes the second vertical rod to move in the opposite direction. This allows the positions of the two sets of corresponding fixing clamps to be adjusted. Once adjusted, the first locking mechanism can lock them in place. Then, operating the second locking mechanism unlocks the horizontal bar, and the two sets of horizontal bars slide within the connecting seat to adjust the lateral position of the two sets of fixing clamps. Once adjusted, the second locking mechanism can lock the positions of the horizontal bar and the fixing clamps. Thus, through the above structure, stable clamping of calligraphy and painting artifacts of different sizes can be achieved, improving adaptability and ease of operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a side view and a top view of the present invention;

[0016] Figure 3 This is a sectional view of the side of the fixed plate section;

[0017] Figure 4 This is a top sectional view of the fixed plate section;

[0018] Figure 5 This is a sectional view of the side of the connector portion;

[0019] Figure 6 for Figure 3 Enlarged view of part A in the image;

[0020] Figure 7 for Figure 4 Enlarged view of part B in the image;

[0021] Figure 8 for Figure 5 Enlarged view of section C in the image.

[0022] In the diagram: 1. Fixed plate, 2. Mounting seat, 3. First slide groove, 4. Second slide groove, 5. First vertical rod, 6. Second vertical rod, 7. Gear groove, 8. Through groove, 9. Rotating shaft, 10. Circular gear, 11. Fixed frame, 12. Partition plate, 13. Driving bevel gear, 14. Connecting shaft, 15. Turntable, 16. Driven bevel gear, 17. First screw, 18. Moving block, 19. Abutment seat, 20. Locking seat, 21. Connecting seat, 22. Crossbar, 23. Second screw, 24. Knob, 25. Connecting plate, 26. Abutment rod, 27. Clamp, 28. Fixing bolt, 29. Abutment plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Please refer to Figure 1-8As shown, this utility model provides a clamping device for displaying calligraphy and painting artifacts, including a fixing plate 1. Two sets of first sliding grooves 3 are formed on the inner side of the fixing plate 1. A set of second sliding grooves 4 is formed on one side of each of the two sets of first sliding grooves 3. A first vertical rod 5 is slidably connected to the inner side of each of the two sets of second sliding grooves 4. A second vertical rod 6 is slidably connected to the inner side of each of the two sets of second sliding grooves 4. Gear grooves 7 are formed on the opposite sides of the first vertical rod 5 and the second vertical rod 6. A through groove 8 is formed between each set of first sliding grooves 3 and second sliding grooves 4. A rotating shaft 9 is rotatably connected to the inner side of the groove 8. A spherical gear 10 that meshes with two sets of toothed grooves 7 is sleeved on the outer ring of the rotating shaft 9. A first locking mechanism is provided on one side of the fixing plate 1 to facilitate locking the first vertical rod 5 and the second vertical rod 6. A connecting seat 21 is provided at one end of each of the two sets of first vertical rods 5 and the two sets of second vertical rods 6. Two sets of horizontal rods 22 are slidably connected to the inner side of the connecting seat 21. A fixing clamp is installed at one end of each of the two sets of horizontal rods 22. A second locking mechanism is provided on one side of the connecting seat 21 to facilitate locking and fixing the two sets of horizontal rods 22.

[0026] Specifically, during operation, the first locking mechanism can unlock the first vertical bar 5 and the second vertical bar 6. Then, pulling the second vertical bar 6 can drive the sprocket to rotate, which in turn drives the second vertical bar 5 to move in the opposite direction. This allows the positions of the two sets of corresponding fixed clamps to be adjusted. Once adjusted, the first locking mechanism can lock them in place. Then, the second locking mechanism can unlock the horizontal bar 22. The two sets of horizontal bars 22 can be slid within the connecting seat 21 to adjust the lateral position of the two sets of fixed clamps. Once adjusted, the second locking mechanism can lock the positions of the horizontal bar 22 and the fixed clamps. Thus, through the above structure, stable clamping of calligraphy and painting artifacts of different sizes can be achieved, improving adaptability and ease of operation.

[0027] The first locking mechanism includes a turntable 15, a fixing frame 11 mounted on one side of the fixing plate 1, two sets of partitions 12 on the inner side of the fixing frame 11, and a connecting shaft 14 rotatably connected between the two sets of partitions 12. One end of the connecting shaft 14 extends to the outside of the fixing frame 11 and is connected to the turntable 15. A driving bevel gear 13 is sleeved on the outer ring of the connecting shaft 14. Both sets of partitions 12 are rotatably connected to first screws 17. One end of each set of first screws 17 is connected to a driven bevel gear 16 that meshes with the driving bevel gear 13. The other end of each set of first screws 17 is threadedly connected to a moving block 18 that is slidably connected to the inner side of the fixing frame 11. One end of each set of moving blocks 18 is provided with an abutment seat 19. One end of each set of rotating shafts 9 extends to the inner side of the fixing frame 11 and rotates therewith. The connection is such that two sets of contact seats 19 respectively abut against two sets of rotating shafts 9. During operation, rotating the turntable 15 can drive the connecting shaft 14 and the driving bevel gear 13 to rotate. The driving bevel gear 13 meshes with the driven bevel gear 16 to drive the two sets of first screws 17 to rotate. The first screws 17, through the threaded connection with the moving block, can make the moving block 18 slide inside the fixed frame 11. The moving block 18 can drive the contact seats 19 to move closer to or away from the rotating shaft 9. When the contact seats 19 abut against the rotating shaft 9, they can lock; when they move away, they can unlock. This allows control over the position of the first vertical rod 5 and the second vertical rod 6 to be fixed or adjusted. Furthermore, by setting it up, the first vertical rod 5 and the second vertical rod 6 can be quickly locked and unlocked, facilitating flexible adjustment of the longitudinal position of the fixed clamp and improving operational convenience.

[0028] One end of the abutment 19 is arc-shaped, which can better fit with the outer circumference of the rotating shaft 9, enhance the abutment stability when locking, and avoid slippage that affects the fixing effect.

[0029] Among them, a locking seat 20 is provided on one side of the fixing frame 11 on the outer ring of the connecting shaft 14. The locking seat 20 is threaded with a locking bolt that facilitates locking the connecting shaft 14. The locking seat 20, together with the locking bolt, can lock the connecting shaft 14 to prevent it from rotating accidentally in a non-operating state, and further ensure the stability of the positions of the first vertical rod 5 and the second vertical rod 6.

[0030] The second locking mechanism includes a knob 24. A second screw 23 is rotatably connected to one side of the connecting seat 21. One end of the second screw 23 is connected to the knob 24. The outer ring of the second screw 23 is threadedly connected to a connecting plate 25. Two sets of abutment rods 26 are provided on one side of the connecting plate 25. One end of each set of abutment rods 26 extends to the inner side of the connecting seat 21 and abuts against the corresponding crossbar 22. During operation, rotating the knob 24 can drive the second screw 23 to rotate. The second screw 23, through its threaded connection with the connecting plate 25, can move the connecting plate 25 on one side of the connecting seat 21. The connecting plate 25 can drive the two sets of abutment rods 26 to move closer to or away from the crossbar 22. When the abutment rods 26 abut against the crossbar 22, the crossbar 22 is locked and fixed. When they move away, the crossbar 22 is unlocked. This allows control over the sliding or fixing of the crossbar 22 inside the connecting seat 21. By this design, the crossbar 22 can be quickly locked and unlocked, facilitating flexible adjustment of the lateral position of the fixing clamp and improving operational convenience and positioning stability.

[0031] The fixing clamp includes a clamp base 27, with an elastic pad on the inner side of the clamp base 27. The clamp base 27 is threadedly connected to a fixing bolt 28, and one end of the fixing bolt 28 is rotatably connected to an abutment plate 29. The surface of the abutment plate 29 is covered with a soft cotton layer. The elastic pad of the clamp base 27 and the soft cotton layer of the abutment plate 29 cooperate with each other. The clamping force can be adjusted by the fixing bolt 28, which can not only stably clamp the calligraphy and painting cultural relics, but also avoid rigid contact damage to the cultural relics and improve the clamping safety.

[0032] The fixing plate 1 has mounting seats 2 at both ends. The mounting seats 2 at both ends of the fixing plate 1 can enhance the connection stability between the device and the display rack, improve the overall structural integrity, and ensure safety and reliability when holding cultural relics.

[0033] Working principle: First, by rotating the turntable 15 of the first locking mechanism, the connecting shaft 14, the driving bevel gear 13, the driven bevel gear 16, and the first screw 17 can be rotated. This causes the moving block 18 to move the abutment seat 19 away from the rotating shaft 9 to unlock the first vertical rod 5 and the second vertical rod 6. Then, pulling the second vertical rod 6 can drive the spur gear 10 to rotate, thereby driving the first vertical rod 5 to move in the opposite direction. After adjusting the longitudinal position of the upper and lower fixing clamps, rotating the turntable 15 in the opposite direction can cause the abutment seat 19 to abut against the rotating shaft 9 and lock it. The connecting shaft 14 is then fixed by the locking seat 20 and the locking bolt. Then, by rotating the knob 24 of the second locking mechanism, the second screw 23, the connecting plate 25 and the abutment rod 26 can be moved to unlock the crossbar 22. After adjusting the horizontal position of the fixing clamp by sliding the crossbar 22 in the connecting seat 21, the knob 24 is rotated in the opposite direction to make the abutment rod 26 abut against the crossbar 22 to complete the locking. Finally, the distance between the abutment plate 29 and the clamp seat 27 is adjusted by the fixing bolt 28 of the fixing clamp. The elastic pad and soft cotton layer are used to stably clamp the calligraphy and painting cultural relics. Throughout the process, the mounting seats 2 at both ends of the fixing plate 1 can ensure the connection between the device and the display rack is stable, thus completing the entire operation process.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping device for a calligraphy and painting cultural relic display stand, comprising a fixed plate (1), characterized in that: The inner side of the fixed plate (1) is provided with two sets of first sliding grooves (3), and one side of each of the two sets of first sliding grooves (3) is provided with a set of second sliding grooves (4). The inner sides of the two sets of first sliding grooves (3) are slidably connected with first vertical rods (5), and the inner sides of the two sets of second sliding grooves (4) are slidably connected with second vertical rods (6). The opposite sides of the first vertical rods (5) and the second vertical rods (6) are provided with toothed grooves (7). A through groove (8) is provided between a set of first sliding grooves (3) and second sliding grooves (4). The inner side of the through groove (8) is rotatably connected with a rotating shaft (9). The outer ring of the shaft (9) is fitted with a spherical gear (10) that meshes with the two sets of toothed grooves (7). One side of the fixing plate (1) is provided with a first locking mechanism to facilitate locking the first vertical rod (5) and the second vertical rod (6). One end of each of the two sets of first vertical rods (5) and the two sets of second vertical rods (6) is provided with a connecting seat (21). Two sets of horizontal rods (22) are slidably connected to the inner side of the connecting seat (21). One end of each of the two sets of horizontal rods (22) is equipped with a fixing clamp. One side of the connecting seat (21) is provided with a second locking mechanism to facilitate locking the two sets of horizontal rods (22).

2. The clamping device for a calligraphy and painting cultural relic display stand according to claim 1, characterized in that: The first locking mechanism includes a turntable (15), a fixing frame (11) is installed on one side of the fixing plate (1), two sets of partitions (12) are provided on the inner side of the fixing frame (11), and a connecting shaft (14) is rotatably connected between the two sets of partitions (12). One end of the connecting shaft (14) extends to the outside of the fixing frame (11) and is connected to the turntable (15). A drive bevel gear (13) is sleeved on the outer ring of the connecting shaft (14). Both sets of partitions (12) are rotatably connected to a first screw (17). One end of each of the first screws (17) is connected to a driven bevel gear (16) that meshes with the driving bevel gear (13). The other end of each of the first screws (17) is threadedly connected to a moving block (18) that is slidably connected to the inside of the fixed frame (11). One end of each of the moving blocks (18) is provided with an abutment seat (19). One end of each of the rotating shafts (9) extends to the inside of the fixed frame (11) and is rotatably connected to it. The abutment seats (19) of each of the two sets abut against each other.

3. The clamping device for a calligraphy and painting cultural relic display stand according to claim 2, characterized in that: One end of the abutment (19) is arranged in an arc shape.

4. The clamping device for a calligraphy and painting cultural relic display stand according to claim 2, characterized in that: A locking seat (20) is provided on one side of the fixing frame (11) on the outer ring of the connecting shaft (14), and the locking seat (20) is threaded with a locking bolt that facilitates locking the connecting shaft (14).

5. The clamping device for a calligraphy and painting cultural relic display stand according to claim 1, characterized in that: The second locking mechanism includes a knob (24), a second screw (23) is rotatably connected to one side of the connecting seat (21), one end of the second screw (23) is connected to the knob (24), the outer ring of the second screw (23) is threadedly connected to a connecting plate (25), and two sets of abutment rods (26) are provided on one side of the connecting plate (25). One end of each set of abutment rods (26) extends to the inner side of the connecting seat (21) and abuts against the corresponding crossbar (22).

6. The clamping device for a calligraphy and painting cultural relic display stand according to claim 5, characterized in that: The fixing clamp includes a clamp base (27), the inner side of which is provided with an elastic pad layer. The clamp base (27) is threadedly connected to a fixing bolt (28), and one end of the fixing bolt (28) is rotatably connected to an abutment plate (29). The surface of the abutment plate (29) is covered with a soft cotton layer.

7. The clamping device for a calligraphy and painting cultural relic display stand according to claim 1, characterized in that: Mounting bases (2) are provided at both ends of the fixing plate (1).

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