Multifunctional sand table model splicing and fixing device

By using a structure that combines a card plate and a slot, along with a spring and a limiting block design, the problem of loosening and separation during the use of the sand table model is solved, achieving stable assembly and quick disassembly, thus improving the stability and ease of use of the sand table model.

CN224263726UActive Publication Date: 2026-05-19TIANJIN PINLU 3D INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN PINLU 3D INTELLIGENT TECH CO LTD
Filing Date
2025-05-15
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing methods of splicing and fixing sand table models are difficult to provide a durable and stable connection in scenarios involving long-term use or frequent movement, and are prone to loosening or separation, affecting the display effect and ease of use.

Method used

It adopts a structure that combines a card plate and a card slot, and incorporates a spring, a limit block, and a wedge block design. The wedge block's pressure and the spring's rebound achieve a secure engagement, while the threaded rod is driven by a knob for disassembly, simplifying the operation.

Benefits of technology

It achieves stable assembly of sand table models, preventing loosening and separation, improving disassembly efficiency, and reducing operation difficulty and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sand table models, and discloses a multifunctional sand table model splicing and fixing device which comprises a sand table model body, a clamping groove is formed in the sand table model body, a connecting assembly is arranged on the inner wall of the sand table model body, and the connecting assembly comprises a clamping plate. One end of the clamping plate is fixedly connected to the outer wall of the sand table model body, the two ends of the clamping plate are fixedly connected with third inclined blocks, the inner wall of the sand table model body is slidably connected with sliding rods, the outer walls of the sliding rods are sleeved with springs, and one ends of the two sliding rods are fixedly connected with a first limiting block and a second limiting block. The upper surface of the first limiting block is fixedly connected with a first fixing block, and the upper surface of the second limiting block is fixedly connected with a second fixing block. According to the sand table model, through the cooperation of the clamping plates and the clamping grooves and the synergistic effect of the springs, the limiting blocks and other structures, stable splicing of the sand table model bodies is achieved, and the requirement for stable splicing of the sand table model in various scenes can be met.
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Description

Technical Field

[0001] This utility model relates to the field of sand table model technology, and in particular to a multifunctional sand table model splicing and fixing device. Background Technology

[0002] In various fields such as architectural design, urban planning, and military simulations, multifunctional sand table models play an irreplaceable role as an important tool for intuitively displaying spatial layouts and topography. With the diversification of application scenarios, sand table models often need to be assembled from multiple modules to adapt to the needs of projects of varying scales and complexities. Therefore, the performance of the sand table model's assembly and fixing devices directly affects the overall stability, display effect, and ease of use of the sand table, becoming a key technical aspect that related fields are continuously exploring and improving.

[0003] Existing sand table model assembly and fixing technologies mostly employ simple snap-fit ​​or slot-type connection structures. Snap-fit ​​connections rely on the engagement of elastic snaps and slots to achieve assembly; the principle is that the snaps' elastic deformation allows them to return to their original shape after insertion, thus securing them. Slot-type connections, on the other hand, involve inserting the protruding parts of the sand table modules into corresponding grooves, using mechanical locking to complete the assembly. Some improved solutions also add magnetic components to use magnetic force to assist in fixing the sand table modules, enhancing the stability of the assembly.

[0004] However, existing splicing and fixing methods have significant shortcomings when dealing with scenarios involving prolonged use or frequent movement. Since sand table models may be affected by external impacts, vibrations during transport, etc., simple clips, slots, or magnetic structures cannot provide a durable and stable connection, easily leading to loosening or even separation. This results in damage to the display effect of the sand table model and fails to meet the demand for stable splicing of sand table models in complex environments. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multifunctional sand table model splicing and fixing device, which aims to improve the problem that simple buckles, slots or magnetic structures cannot provide a durable and stable connection effect because sand table models may be affected by external force collisions, transportation vibrations and other factors during actual use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional sand table model splicing and fixing device, including a sand table model body, wherein a slot is provided inside the sand table model body, and a connecting component is provided on the inner wall of the sand table model body;

[0007] The connecting assembly includes a card plate, one end of which is fixedly connected to the outer wall of the sand table model body. Both ends of the card plate are fixedly connected to inclined blocks three. A sliding rod is slidably connected to the inner wall of the sand table model body. A spring is sleeved on the outer wall of the sliding rod. One end of the two sliding rods is fixedly connected to limit block one and limit block two.

[0008] Furthermore, a fixing block is fixedly connected to the upper surface of the limiting block one, a fixing block is fixedly connected to the upper surface of the limiting block two, a connecting rod is fixedly connected to the upper surface of the fixing block one, a connecting rod is fixedly connected to the upper surface of the fixing block two, an inclined block is fixedly connected to one end of the connecting rod one, an inclined block is fixedly connected to one end of the connecting rod two, and a fixing component is provided on the upper surface of the inclined block one.

[0009] Furthermore, the fixing component includes an extrusion block, the lower surface of which is attached to the upper surface of the inclined block, a push plate is fixedly connected to the upper surface of the extrusion block, a threaded rod is threadedly connected inside the push plate, and a knob is fixedly connected to one end of the threaded rod.

[0010] Furthermore, the outer wall of the connecting rod is slidably connected to the inner wall of the sand table model body, and the outer wall of the limiting block is slidably connected to the inner wall of the sand table model body.

[0011] Furthermore, one end of the spring is fixedly connected to the inner wall of the sand table model body, and the other end of the spring is fixedly connected to the outer wall of the limiting block.

[0012] Furthermore, the outer wall of the first inclined block is slidably connected to the inner wall of the sand table model body, and the outer wall of the second inclined block is slidably connected to the inner wall of the sand table model body.

[0013] Furthermore, the knob is located above the sand table model body, and the outer wall of the push plate is slidably connected to the inside of the sand table model body.

[0014] Furthermore, the extrusion block is disposed inside the sand table model body.

[0015] Furthermore, the outer walls of the two inclined blocks are slidably connected to the first limiting block and the second limiting block, respectively.

[0016] Furthermore, the outer walls of the extrusion block are designed with bevels on both sides, which coincide with the bevels on one side of the outer walls of beveled blocks one and two.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, the stable splicing between the main body of the sand table model is achieved through the cooperation of the card plate and the card slot, as well as the synergistic effect of the spring, the limiting block and other structures. When the card plate is inserted into the card slot, the three inclined blocks apply pressure to the limiting block, the spring contracts, and after the three inclined blocks are fully inserted, the spring rebounds, and the protrusion of the limiting block is inserted into the recess between the card plate and the three inclined blocks to form a firm connection. This effectively prevents the sand table model from becoming loose or separating during use, ensuring the stability and reliability of the sand table model after splicing, and meeting the needs of stable splicing of sand table models in various scenarios.

[0019] 2. In this utility model, the threaded rod is rotated by driving the knob, causing the push plate and the extrusion block to move downwards. The extrusion block and the inclined block cooperate with the inclined surface to push the inclined block to move to both sides, thereby causing the limiting block to move to both sides, so that the limiting block separates from the clamping plate, easily realizing the disassembly of the sand table model body. No complicated tools are needed, the operation is simple and quick, greatly improving the disassembly efficiency of the sand table model, facilitating the maintenance, replacement and recombination of the sand table model, and reducing the cost of use and the difficulty of operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the multifunctional sand table model splicing and fixing device proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of the multifunctional sand table model splicing and fixing device proposed in this utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0023] Figure 4 This is a schematic diagram of a portion of the connecting rod structure of the multifunctional sand table model splicing and fixing device proposed in this utility model;

[0024] Figure 5 This is a schematic diagram of the threaded rod part of the multifunctional sand table model splicing and fixing device proposed in this utility model.

[0025] Legend:

[0026] 1. Sand table model body; 2. Clamping plate; 3. Clamping slot; 4. Limiting block one; 5. Sliding rod; 6. Spring; 7. Connecting rod one; 8. Pressing block; 9. Push plate; 10. Knob; 11. Threaded rod; 12. Inclined block one; 13. Fixing block one; 14. Inclined block three; 15. Inclined block two; 16. Connecting rod two; 17. Fixing block two; 18. Limiting block two. Detailed Implementation

[0027] 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.

[0028] Reference Figure 1 , Figure 4 and Figure 5 The present invention provides an embodiment of a multifunctional sand table model splicing and fixing device, including a sand table model body 1, a slot 3 inside the sand table model body 1 corresponding to a slot plate 2, providing an insertion space for the slot plate 2, and completing the splicing operation of two sand table model bodies 1 by cooperating with the slot plate 2, and a connecting component is provided on the inner wall of the sand table model body 1.

[0029] The connecting assembly includes a locking plate 2 for inserting into a slot 3 of another sand table model body 1. Two inclined blocks 14 at its ends cooperate with limiting blocks 4 to achieve locking and positioning during assembly. One end of the locking plate 2 is fixedly connected to the outer wall of the sand table model body 1, and two inclined blocks 14 are fixedly connected to both ends of the locking plate 2. A sliding rod 5 is slidably connected to the inner wall of the sand table model body 1, and a spring 6 is sleeved on the outer wall of the sliding rod 5. When the locking plate 2 is inserted, it is compressed and contracts to store elastic potential energy. After the inclined blocks 14 are fully inserted... The spring rebounds, providing reset power for the first limiting block 4, ensuring that the first limiting block 4 can clamp the plate 2. One end of each of the two sliding rods 5 is fixedly connected to the first limiting block 4 and the second limiting block 18. During the insertion of the plate 2, the first limiting block 4 is squeezed and slid by the third inclined block 14. After the spring 6 rebounds, its protrusions are inserted into the recess between the plate 2 and the third inclined block 14, restricting the movement of the plate 2 and ensuring a firm splicing. When disassembling, it moves to both sides under the action of the connecting rod 7, releasing the restriction on the plate 2.

[0030] Specifically, firstly, the clamping plate 2 of the sand table model body 1 is aligned with the clamping groove 3 of another sand table model body 1 and inserted forcefully. The inclined blocks 3 14 at both ends of the clamping plate 2 are wedge-shaped. During the insertion process, the inclined surface of the inclined block 3 14 will apply horizontal pressure to the limiting block 1 4, causing the limiting block 1 4 to slide in the pre-set groove inside the sand table model body 1. At the same time, the spring 6 installed between the limiting block 1 4 and the inner wall of the sand table model body 1 is compressed and contracts. When the inclined block 3 14 is fully inserted into the clamping groove 3, the spring 6 loses external pressure and rebounds with its own elastic potential energy, pushing the limiting block 1 4 to move towards the clamping plate 2. The protrusion on the limiting block 1 4 is precisely inserted into the recessed area between the clamping plate 2 and the inclined block 3 14, forming a tight clamping structure, thereby realizing the firm splicing of the two sand table model bodies 1.

[0031] Reference Figures 1-3The upper surface of the limiting block 14 is fixedly connected to the fixing block 13, and the upper surface of the limiting block 2 18 is fixedly connected to the fixing block 2 17. The upper surface of the fixing block 13 is fixedly connected to the connecting rod 17. During disassembly, under the pressure of the squeezing block 8, the limiting block 14 is moved to both sides, releasing the limitation on the card plate 2. At the same time, the moving force of the inclined block 12 is transmitted, realizing the movement control of the limiting block 14. The upper surface of the fixing block 2 17 is fixedly connected to the connecting rod 2 16, and one end of the connecting rod 17 is fixedly connected to the inclined block 12, which is in contact with the inclined surface of the squeezing block 8. It is pushed to both sides by the squeezing block 8. The movement is achieved by connecting rod 7, which moves limiting block 4 to release the limiting position of clamping plate 2 during disassembly. One end of connecting rod 16 is fixedly connected to inclined block 15. The upper surface of inclined block 12 is provided with a fixing component, which includes pressing block 8. Under the action of push plate 9 or threaded rod 11, it moves downward, and its two inclined surfaces push inclined block 12 and inclined block 15 to move to both sides, while applying pressure to connecting rod 7 and connecting rod 16. The lower surface of pressing block 8 is attached to the upper surface of inclined block 12. Push plate 9 is fixedly connected to the upper surface of pressing block 8. It can be manually operated to make it... Moving downwards causes the pressing block 8 to descend, which in turn pushes connecting rod 7 and connecting rod 16, enabling the movement of limiting block 4 and limiting block 18, thus completing the manual disassembly operation. The push plate 9 has a threaded rod 11 internally connected to it, with a knob 10 fixedly connected to one end. Rotating the knob 10 causes the threaded rod 11 to rotate, converting the rotational motion into linear motion of the push plate 9. The outer wall of connecting rod 7 is slidably connected to the inner wall of the sand table model body 1, and the outer wall of limiting block 4 is slidably connected to the inner wall of the sand table model body 1. One end of the spring 6 is fixedly connected to the inner wall of the sand table model body 1. The other end of the spring 6 is fixedly connected to the outer wall of the limiting block 1 4. The outer wall of the inclined block 1 12 is slidably connected to the inner wall of the sand table model body 1. The outer wall of the inclined block 2 15 is slidably connected to the inner wall of the sand table model body 1. The knob 10 is located above the sand table model body 1. The outer wall of the push plate 9 is slidably connected to the inside of the sand table model body 1. The extrusion block 8 is located inside the sand table model body 1. The outer walls of the two inclined blocks 3 14 are slidably connected to the limiting block 1 4 and the limiting block 2 18, respectively. The outer walls of the extrusion block 8 are designed with inclined surfaces on both sides, and they match the inclined surfaces on one side of the outer walls of the inclined blocks 1 12 and the inclined blocks 2 15.

[0032] Specifically, when it is necessary to disassemble the sand table model body 1, it can also be done through the drive knob 10. The drive knob 10 is fixedly connected to the threaded rod 11. Rotating the drive knob 10 causes the threaded rod 11 to rotate inside the sand table model body 1. Since there is a threaded engagement between the threaded rod 11 and the push plate 9, as the threaded rod 11 rotates, the push plate 9 will move downward along the axial direction of the threaded rod 11. The pressing block 8 below the push plate 9 will also move downward. The inclined surfaces on both sides of the pressing block 8 are in contact with the inclined surfaces of inclined block 12 and inclined block 25. When the pressing block 8 moves downward, its inclined surfaces will engage with inclined block 12 and inclined block 25. The second 15 applies an outward pushing force, causing the first 12 and the second 15 to move to both sides. The first 12 is connected to the first 7, and the second 15 is connected to the second 16. The movement of the first 12 and the second 15 will drive the first 7 and the second 16 to move synchronously. Through the cooperation of the first 7 and the second 16 with the fixing block 13 and the second 17, the first 4 and the second 18 of the limiting block will eventually move to both sides, so that the first 4 and the second 18 of the limiting block are no longer in contact with the card plate 2, thus releasing the limiting of the card plate 2. At this time, the sand table model body 1 can be easily pulled out, realizing the quick disassembly of the sand table model.

[0033] Working principle: When the multi-functional sand table model splicing and fixing device is needed, first insert the clamping plate 2 of the sand table model body 1 into the clamping groove 3 of another sand table model body 1. The movement of the inclined blocks 3 14 at both ends of the clamping plate 2 applies pressure to the limiting block 1 4, causing it to slide inside the sand table model body 1. At the same time, the spring 6 contracts. After the inclined block 3 14 is fully inserted, the spring 6 rebounds, pushing the limiting block 1 4. Its protrusion is inserted into the recess between the clamping plate 2 and the inclined block 3 14, achieving a firm connection. When disassembling, the push plate 9 moves downward, and the squeezing block 8 applies pressure to the connecting rod 1 7 and the connecting rod 2 16. Through the fixing block 1 13 and the fixing block 2 17, the limiting block 1 4 and the limiting block 2 18 are moved. Then the clamping plate 2 is easily pulled out to achieve disassembly and assembly.

[0034] Furthermore, when disassembly is required, the drive knob 10 drives the threaded rod 11 to rotate inside the sand table model body 1. In conjunction with the threaded relationship between the threaded rod 11 and the push plate 9, the push plate 9 drives the pressing block 8 to move downward with the rotation of the threaded rod 11. Then, the movement of the pressing block 8 causes the inclined surfaces on both sides to push the inclined block 12 and inclined block 25 to move to both sides. Thus, the inclined block 12 and inclined block 215 drive the connecting rod 17 and connecting rod 26 to move. Then, the connecting rod 17 and connecting rod 216, in conjunction with the fixing block 13 and fixing block 217, drive the limiting block 14 and limiting block 28 to move to both sides, so that the limiting block 14 and limiting block 218 are no longer in contact with the clamping plate 2. Then, the sand table model body 1 can be pulled out, achieving quick disassembly.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional sand table model splicing and fixing device, comprising a sand table model body (1), characterized in that: The sand table model body (1) has a slot (3) inside, and the inner wall of the sand table model body (1) is provided with a connecting component; The connecting assembly includes a clamping plate (2), one end of which is fixedly connected to the outer wall of the sand table model body (1). Both ends of the clamping plate (2) are fixedly connected to inclined blocks three (14). The inner wall of the sand table model body (1) is slidably connected to a sliding rod (5). The outer wall of the sliding rod (5) is fitted with a spring (6). One end of the two sliding rods (5) is fixedly connected to a limiting block one (4) and a limiting block two (18).

2. The multifunctional sand table model splicing and fixing device according to claim 1, characterized in that: The upper surface of the limiting block 1 (4) is fixedly connected to the fixing block 1 (13), the upper surface of the limiting block 2 (18) is fixedly connected to the fixing block 2 (17), the upper surface of the fixing block 1 (13) is fixedly connected to the connecting rod 1 (7), the upper surface of the fixing block 2 (17) is fixedly connected to the connecting rod 2 (16), one end of the connecting rod 1 (7) is fixedly connected to the inclined block 1 (12), one end of the connecting rod 2 (16) is fixedly connected to the inclined block 2 (15), and the upper surface of the inclined block 1 (12) is provided with a fixing component.

3. The multifunctional sand table model splicing and fixing device according to claim 2, characterized in that: The fixing component includes an extrusion block (8), the lower surface of which is attached to the upper surface of the inclined block (12), and a push plate (9) is fixedly connected to the upper surface of the extrusion block (8). A threaded rod (11) is threadedly connected inside the push plate (9), and a knob (10) is fixedly connected to one end of the threaded rod (11).

4. The multifunctional sand table model splicing and fixing device according to claim 2, characterized in that: The outer wall of the connecting rod (7) is slidably connected to the inner wall of the sand table model body (1), and the outer wall of the limiting block (4) is slidably connected to the inner wall of the sand table model body (1).

5. The multifunctional sand table model splicing and fixing device according to claim 2, characterized in that: One end of the spring (6) is fixedly connected to the inner wall of the sand table model body (1), and the other end of the spring (6) is fixedly connected to the outer wall of the limiting block (4).

6. The multifunctional sand table model splicing and fixing device according to claim 2, characterized in that: The outer wall of the first inclined block (12) is slidably connected to the inner wall of the sand table model body (1), and the outer wall of the second inclined block (15) is slidably connected to the inner wall of the sand table model body (1).

7. The multifunctional sand table model splicing and fixing device according to claim 3, characterized in that: The knob (10) is located above the sand table model body (1), and the outer wall of the push plate (9) is slidably connected to the inside of the sand table model body (1).

8. The multifunctional sand table model splicing and fixing device according to claim 3, characterized in that: The extrusion block (8) is located inside the sand table model body (1).

9. The multifunctional sand table model splicing and fixing device according to claim 3, characterized in that: The outer walls of the two inclined blocks three (14) are slidably connected to the limiting block one (4) and the limiting block two (18), respectively.

10. The multifunctional sand table model splicing and fixing device according to claim 3, characterized in that: The outer walls of the extrusion block (8) are designed with beveled sides, which match the beveled sides of the outer walls of the first beveled block (12) and the second beveled block (15).