A terrain sand table masking device

Abstract

The utility model discloses a topography sand table shielding device, it has the support spare of being able to drive member to be positioned to the sand table, and drive member is equipped with the telescopic arm and shielding curtain driven by drive member and is opened and closed, to carry out shielding or unfolding to sand table, shielding curtain is connected with the support beam that one end is passed stable component away from drive member, and support beam sets up on stable component, and support beam and telescopic arm away from drive member's end portion are connected together, stable component includes the stable column of being movable and being established on support beam, and stable column can two ends stress to the side bending convexity away from drive member, to cooperate drive member taut shielding curtain. To solve the problem of the central part of sand table shielding curtain in the prior art due to lack of support and lead to excessive collapse, and then can cause damage to the higher area of sand table.

Description

Technical Field

[0001] This utility model relates to the field of surveying and mapping geographic information technology, specifically to a terrain sand table masking device. Background Technology

[0002] In the daily maintenance and management of topographic sand tables, sand table shielding curtains play an important role as a common protective tool. They not only protect the sand table from dust pollution and light damage, but also effectively prevent the leakage of confidential information from the sand table.

[0003] However, existing sand table covering curtains on the market have significant shortcomings in practical applications. When the curtain is unfolded and covers the sand table, due to its own weight and the lack of effective support in the center, the center of the curtain is prone to collapse under gravity. This central collapse not only affects the covering effect and overall aesthetics of the sand table, but more seriously, if there are tall terrain or architectural structures on the sand table, the collapsed curtain will rub against them. As a delicate display model, the surface material and structure of the sand table are relatively fragile. Long-term friction may cause irreparable damage, such as damaging the surface texture and color, or even damaging the architectural and terrain structures, thus seriously affecting the display effect and functionality of the sand table. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the central part of the sand table covering curtain in the prior art is prone to excessive collapse due to lack of support, which will damage the higher areas of the sand table, and to provide a terrain sand table covering device.

[0005] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a terrain sand table covering device, which has a support member capable of positioning a driving member on the sand table, and the driving member is provided with a telescopic arm and a covering curtain that are driven to open and close by the driving member, so as to cover or unfold the sand table. The end of the covering curtain away from the driving member passes around a stabilizing component and is connected to a support beam. The support beam is set on the stabilizing component, and the support beam is connected to the end of the telescopic arm away from the driving member.

[0006] The stabilizing component includes a stabilizing column movably mounted on the support beam, and the stabilizing column can bend and protrude at both ends toward the side away from the driving component to cooperate with the driving component to tighten the shielding curtain.

[0007] As a further optimization of the terrain sand table shielding device of this utility model: the length of the stabilizing column is greater than the distance between the left and right support walls of the sand table, so that the two ends of the stabilizing column are pressed down by the two support walls on the support beam.

[0008] As a further optimization of the terrain sand table shielding device of this utility model: both ends of the stabilizing column are provided with roller grooves, and roller balls are movably arranged in both roller grooves so that the roller balls press against the support wall under the support of the stabilizing column.

[0009] As a further optimization of the terrain sand table shielding device of this utility model: the stabilizing column is provided with a sliding groove at both ends of the support beam, and the sliding groove slides in cooperation with the limiting column provided on the support beam.

[0010] As a further optimization of the terrain sand table shielding device of this utility model: the end of the limiting column away from the support beam is threadedly connected to the limiting plate, and the limiting plate can press the two ends of the stabilizing column to maintain the stress state at both ends of the stabilizing column.

[0011] As a further optimization of the terrain sand table shielding device of this utility model: the limiting plate is set in the groove opened on the stabilizing column to prevent the limiting plate from causing top pressure damage to the shielding curtain.

[0012] As a further optimization of the terrain sand table covering device of this utility model: the sliding groove is provided with an elongated hole so that the limiting post can slide in the sliding groove.

[0013] As a further optimization of the terrain sand table concealment device of this utility model: the material of the concealment curtain is a waterproof curtain.

[0014] As a further optimization of the terrain sand table concealment device of this utility model: the support beam is made of hollow aluminum alloy material.

[0015] As a further optimization of the terrain sand table shielding device of this utility model: the surface of the stabilizing column is smoothly set.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention incorporates a stabilizing component, including a stabilizing column whose length exceeds the width between the two supporting walls. This column aligns with the two supporting walls along the width of the sand table, causing it to bend at the center. Furthermore, the cooperation of the sliding groove and the limiting column stabilizes the relative position of the supporting beams. Simultaneously, the bent stabilizing column further tensions the center of the shielding curtain, effectively reducing the degree of central collapse and minimizing potential damage to the sand table. This also enhances the aesthetics of the terrain sand table in its shielded state, protects it from dust contamination and light damage, and effectively meets the confidentiality requirements of the sand table information. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the present invention in use.

[0021] Figure 4 This is a cross-sectional structural diagram of the connection between the limiting post and the slide groove of this utility model;

[0022] The markings in the diagram are: 1. Drive component; 2. Support component; 3. Telescopic arm; 4. Support beam; 5. Stabilizing component; 501. Ball bearing; 502. Stabilizing column; 503. Slide groove; 504. Limiting column; 505. Roller groove; 506. Limiting plate; 507. Interlocking interface; 6. Shielding curtain; 7. Sand table; 8. Support wall. Detailed Implementation

[0023] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0024] like Figure 1 and Figure 3 This invention discloses a terrain sand table concealment device, which includes a support member 2 that securely connects a drive member 1 to a sand table 7. The drive member 1 is connected to one end of a telescopic arm 3 and a concealment curtain 6. A support beam 4 is provided on the side of the telescopic arm 3 facing away from the drive member 1. The support beam 4 is tightly connected to the side of the concealment curtain 6 facing away from the drive member 1, ensuring that, with precise cooperation from the drive member 1, the telescopic arm 3 and the concealment curtain 6 can open and close according to instructions, thereby effectively concealing and protecting the sand table 7 or opening it for use. Specifically, the concealment curtain 6 is made of waterproof fabric to protect and conceal the sand table 7, achieving the purpose of keeping the sand table 7 confidential. A specially designed shielding curtain 6 bypasses the stabilizing component 5 on the support beam 4. Under the limited support of the two support walls 8 of the sand table 7, which provide displacement space for the support beam 4, the stabilizing component 5 presses against the center of the shielding curtain 6 corresponding to the support beam 4, achieving a tension effect at the center of the shielding curtain 6. This significantly reduces the probability of the shielding curtain 6 collapsing at its center, causing wear on higher parts of the model within the sand table 7. Specifically, the support beam 4 is made of hollow aluminum alloy strips to reduce the probability of the shielding curtain 6 tilting due to the heavy load on the telescopic arm 3 while maintaining strength. Simultaneously, this design also optimizes the flatness of the shielding curtain 6 to some extent and enhances its aesthetics.

[0025] like Figure 2As shown, the stabilizing component 5 includes a stabilizing column 502 that can move flexibly on the supporting beam 4. The two ends of the stabilizing column 502 can deform under the pressure of the supporting wall 8, so that the center of the stabilizing column 502 protrudes in the direction away from the supporting member 2, thereby pressing down on the center of the shielding curtain 6 that passes around the stabilizing column 502. This achieves the tightening of the center part of the shielding curtain 6 when the telescopic arm 3 is fully extended, thereby reducing the wear impact of the center collapse of the shielding curtain 6 on the higher part of the sand table model 7.

[0026] The stabilizing column 502 has carefully designed grooves 503 at both ends of the supporting beam 4. The grooves 503 slide in conjunction with the limiting column 504 fixed on the supporting beam 4. The grooves 503 are designed as waist grooves, so that the center of the stabilizing column 502, which is longer than the distance between the two supporting walls 8, bends and protrudes after limiting the position of the stabilizing column 502. This allows the limiting column 504 to slide within the grooves 503, which in turn lifts the curtain 6, keeping the center of the unfolded curtain 6 taut and reducing the degree of collapse at the center of the curtain 6. In addition, the stabilizing column 502 has cleverly designed roller grooves 505 at both ends. The roller grooves 505 are rotatably arranged with ball bearings 501 that slide in conjunction with the supporting wall 8. The precise arrangement of the ball bearings 501 and the roller grooves 505 can significantly reduce the friction between the stabilizing column 502 and the supporting wall 8 as the supporting beam 4 drives the stabilizing column 502 to slide along the supporting wall 8, thereby maintaining low resistance when the telescopic arm 3 pushes the supporting beam 4. Meanwhile, the compressed stabilizing column 502, in conjunction with the slide groove 503 and the limiting column 504, stabilizes the movement of the support beam 4, thereby improving the stability of the curtain 6 during the rolling or unfolding process. Specifically, the end of the limiting column 504 facing away from the support beam 4 is provided with a limiting disc 506. The limiting disc 506 can prevent the stabilizing column 502 from detaching from the support beam 4 after bending, and the limiting disc 506 is located within the slide groove 503. Figure 4 As shown, the cross-sectional shape of the slide 503 is stepped, thereby preventing the limiting plate 506 from contacting the shielding curtain 6 and causing wear to the shielding curtain 6. The surface of the stabilizing column 502 is smooth to reduce the possibility of wear on the shielding curtain 6 caused by an excessively rough surface of the stabilizing column 502.

[0027] The detailed structure of the drive unit 1 includes a transmission component that drives the telescopic arm 3 to rotate and open / close, and a winding component that rolls up or unfolds the curtain 6. The transmission component includes a worm gear mounted on the support member 2 and a worm wheel mounted on the telescopic arm 3. The precise engagement of the worm gear and worm wheel enables the telescopic arm 3 to rotate and open / close. The winding component includes a torsion spring mounted on the support member 2 and a winding rod. The torsion spring drives the winding rod to rotate forward and then reverse to reset, thus coordinating with the movement of the telescopic arm 3 and the support beam 4 to achieve the rolling up or unfolding of the curtain 6. The specific structural distribution, operation transmission, and control methods of the transmission component and winding component included in the drive unit 1 should be considered as applications of existing technology.

[0028] During use, the user can secure the entire assembly to the base of the sand table 7 using the support member 2. Furthermore, with the precise drive function of the drive member 1, the user can easily extend or retract the telescopic arm 3, simultaneously controlling the unfolding or retraction of the curtain 6. During the unfolding or retraction of the curtain 6, the stabilizing column 502 slides against the supporting wall 8, thus maintaining the stability of the supporting beam 4. Specifically, when the curtain 6 unfolds, the stabilizing column 502, whose length exceeds the distance between the two supporting walls 8, will be compressed by the supporting walls 8, causing the center of the stabilizing column 502 to bend. This tensions the curtain at the unsupported, suspended center of the curtain 6, effectively reducing the degree of collapse of the curtain at the center, thus significantly reducing the risk of damage to the higher parts of the model in the sand table 7 from any collapsed area of ​​the curtain 6. If the curtain 6 ages and its tension decreases after prolonged use, the curvature of the center of the stabilizing column 502 will increase, thereby correcting the tension loss of the curtain 6 and keeping the curtain 6 taut and flat for use.

[0029] <Example 2>

[0030] This embodiment is basically the same as Embodiment 1, except that the length of the stabilizing column 502 is less than the distance between the two supporting walls 8, thus preventing the supporting walls 8 from being squeezed by the ball bearings 501. This avoids wear and scratches on the surface of the supporting walls 8 due to prolonged friction with the ball bearings 501. The shielding curtain 6 is detachably connected to the supporting beam 4. Specifically, a locking block is provided at the end of the shielding curtain 6, and a locking groove is provided on the supporting beam 4. Figure 2 and Figure 4 As shown, the two limiting discs 506 are threadedly connected to the limiting post 504. In actual use, first adjust the center curvature of the stabilizing post 502, then press the two ends of the stabilizing post 502 together with the two limiting discs 506 and the limiting post 504. Then maintain the center curvature of the stabilizing post 502 after adjustment, and then let the curtain 6 bypass the locking block of the stabilizing post 502 and connect with the slot on the support beam 4. After that, the stabilizing post 502 will press the curtain 6 to make the curtain at the center of the curtain 6 taut, so as to make it beautiful and flat, and to keep the curtain 6 in a state that minimizes the wear and tear on the highest point of the sand table 7. If the curtain 6 ages and its tension decreases after prolonged use, the curtain 6 can be separated from the support beam 4 using locking blocks and slots. Then, the curvature at the center of the stabilizing column 502 can be adjusted, and the curtain 6 can be re-secured using the limiting plate 506 and the limiting column 504 to correct the tension loss and maintain its taut and flat state for use. The end of the limiting plate 506 opposite to the limiting column 504 has a connecting interface 507, allowing workers to use tools (such as a screwdriver) to drive the limiting plate 506 to rotate and thus press the stabilizing column 502.

[0031] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A terrain sand table concealing device, comprising a support member (2) capable of positioning a drive member (1) on a sand table (7), and the drive member (1) being provided with a telescopic arm (3) and a concealing curtain (6) driven by the drive member (1) to conceal or unfold the sand table (7), characterized in that: The end of the shielding curtain (6) away from the drive member (1) is connected to the support beam (4) by passing around the stabilizing component (5). The support beam (4) is set on the stabilizing component (5) and is connected to the end of the telescopic arm (3) away from the drive member (1). The stabilizing component (5) includes a stabilizing column (502) movably mounted on the support beam (4), and the stabilizing column (502) can be bent and protruded at both ends towards the side away from the driving member (1) to cooperate with the driving member (1) to tighten the curtain (6).

2. The terrain sand table concealment device as described in claim 1, characterized in that: The length of the stabilizing column (502) is greater than the distance between the two supporting walls (8) on the left and right sides of the sand table (7), so that the two ends of the stabilizing column (502) can be pressed down by the two supporting walls (8) on the supporting beam (4).

3. The terrain sand table concealment device as described in claim 2, characterized in that: The stabilizing column (502) has grooves (505) at both ends, and ball bearings (501) are movably arranged in both grooves (505) so that the ball bearings (501) press against the support wall (8) under the support of the stabilizing column (502).

4. The terrain sand table concealment device as described in claim 1, characterized in that: The stabilizing column (502) is provided with a sliding groove (503) at both ends of the supporting beam (4), and the sliding groove (503) slides in cooperation with the limiting column (504) provided on the supporting beam (4).

5. The terrain sand table concealment device as described in claim 4, characterized in that: The end of the limiting column (504) away from the support beam (4) is threadedly connected to the limiting plate (506). The limiting plate (506) can press the two ends of the stabilizing column (502) to maintain the stress state at both ends of the stabilizing column (502).

6. The terrain sand table concealment device as described in claim 5, characterized in that: The limiting plate (506) is located in the groove (503) opened on the stabilizing column (502) to prevent the limiting plate (506) from causing top pressure damage to the shielding curtain (6).

7. The terrain sand table concealment device as described in claim 4, characterized in that: The slide groove (503) is provided with an elongated hole so that the limiting post (504) can slide within the slide groove (503).

8. The terrain sand table concealment device as described in claim 1, characterized in that: The material of the shielding curtain (6) is a waterproof curtain.

9. A terrain sand table concealment device as described in claim 1, characterized in that: The support beam (4) is made of hollow aluminum alloy.

10. A terrain sand table concealment device as described in claim 1, characterized in that: The surface of the stabilizing column (502) is smooth.

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