Sand table with adjusting structure

Abstract

The utility model belongs to the technical field of sand tables, and particularly relates to a sand table with an adjusting structure, which comprises a protective seat, a protective cover plate is hinged to the upper side of the protective seat, an auxiliary opening and closing assembly is arranged on the protective seat, an electric cylinder is fixedly connected to the inner wall of the bottom of the protective seat, and a supporting seat is fixedly connected to the output end of the electric cylinder. And the upper side of the supporting seat is rotationally connected with a sand table. According to the sand table with the adjusting structure, when the supporting seat drives the sand table to ascend to the top of the protective seat, the protective cover plate can be opened to the maximum extent, at the moment, when the height of the sand table needs to be continuously increased, the moving block continuously moves upwards to extrude the telescopic end of the first elastic telescopic rod, so that the telescopic end of the first elastic telescopic rod is compressed into the second wedge-shaped groove, and at the moment, the sand table is lifted to the top of the protective seat. When the supporting seat drives the sand table to continuously rise, the protective cover plate cannot rotate, the telescopic end of the second elastic telescopic rod contracts, and the rotating wheel continuously rises, so that continuous rising of the sand table is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sand tables, in particular to a sand table with an adjustment structure. Background Art

[0002] The engineering project management sandbox course closely revolves around the core content of modern engineering project management, focusing on guiding students to conduct practical experience in project schedule management, cost management and risk management. Through knowledge explanation, skill transfer, sandbox exercises and other methods, it helps students establish awareness of modern engineering project management.

[0003] In the prior art, a Chinese patent with announcement number CN211237508U discloses a display sand table for engineering management. The device is provided with a cylinder, a revolving door and a pull rope. When the cylinder lifts the sand table box, the revolving door opens. The revolving door is made of iron and is provided with a magnet, so it is convenient to close and fix the revolving door to achieve the purpose of protecting the sand table. However, in actual use of the device, when the revolving door is fully opened, the height of the sand table cannot be increased any further, and the display of the sand table is limited. In view of this, we propose a sand table with an adjustment structure. Utility Model Content

[0004] The main purpose of the utility model is to provide a sand table with an adjustment structure, which can solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides a sand table with an adjustment structure, including a protective seat, a protective cover plate is hinged on the upper side of the protective seat, an auxiliary opening and closing component is arranged on the protective seat, an electric cylinder is fixedly connected to the inner wall of the bottom of the protective seat, a support seat is fixedly connected to the output end of the electric cylinder, a sand table is rotatably connected to the upper side of the support seat, and the auxiliary opening and closing component includes:

[0006] A limiting column, wherein the limiting column is fixedly connected to the outer wall of the protective seat;

[0007] A sliding block, wherein the sliding block is slidably connected to the inner wall of the limiting column, a rotating wheel is rotatably installed on the lower side of the sliding block, an elastic telescopic rod 1 is fixedly connected to the outer wall of the sliding block, and an elastic telescopic rod 2 is fixedly connected to the upper side of the sliding block;

[0008] and a steel rope, wherein the steel rope is slidably connected to the outer wall of the rotating wheel.

[0009] Preferably, the second elastic telescopic rod is fixedly connected to the top inner wall of the limiting column, and when the sliding block slides in the inner wall of the limiting column, the telescopic end of the second elastic telescopic rod will be telescoped.

[0010] Preferably, a through groove is provided on the outer wall of the limiting column, and the width of the through groove is larger than the diameter of the steel rope. A wedge-shaped groove is provided on the side of the limiting column close to the protective seat, and the through groove is used to facilitate the passage of the steel rope.

[0011] Preferably, a second wedge-shaped groove is provided on the outer wall of the protective seat, and the second wedge-shaped groove is connected to the first wedge-shaped groove.

[0012] Preferably, notches are provided on both sides of the sliding block.

[0013] Preferably, a connecting rod is fixedly connected to the lower side of the support seat, and a moving block is fixedly connected to the end of the connecting rod away from the support seat. By moving the moving block upward, the telescopic end of the elastic telescopic rod one can be squeezed so that the telescopic end of the elastic telescopic rod one is compressed into the wedge-shaped groove two. At this time, when the support seat drives the sand table to continue to rise, since the protective cover plate cannot rotate, the telescopic end of the elastic telescopic rod two contracts, and the rotating wheel continues to rise.

[0014] The utility model provides a sand table with an adjustable structure, which has the following beneficial effects:

[0015] (1) The sand table with an adjustable structure uses an auxiliary opening and closing component, a connecting rod and a moving block, so that when the support seat drives the sand table to rise to the top of the protective seat, the protective cover can be opened to the maximum extent. At this time, when it is necessary to further increase the height of the sand table, the moving block continues to move upward, squeezing the telescopic end of the elastic telescopic rod one, so that the telescopic end of the elastic telescopic rod one is compressed into the wedge-shaped groove two. At this time, when the support seat drives the sand table to continue to rise, since the protective cover cannot rotate, the telescopic end of the elastic telescopic rod two shrinks, and the rotating wheel continues to rise, thereby ensuring that the sand table continues to rise, preventing the sand table from being restricted by the protective cover, and improving the use effect of the device.

[0016] (2) The sand table with an adjustment structure has a notch on the sliding block so that the movement of the steel rope will not be affected. At the same time, through the use of the wedge groove 1 and the wedge groove 2, the elastic telescopic rod 1 can be reset after the elastic telescopic rod 2 is reset, so that the subsequent protective cover can be normally pulled open by the steel rope next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 The utility model is a schematic diagram of the overall cross-sectional structure Figure 1 ;

[0020] Figure 3 The utility model is a schematic diagram of the overall cross-sectional structure Figure 2 ;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of A.

[0022] Figure 5 It is a structural schematic diagram of the sliding block and the elastic telescopic rod of the utility model.

[0023] Description of Figure Numbers:

[0024] 1. Protective seat; 2. Protective cover; 3. Auxiliary opening and closing assembly; 4. Electric cylinder; 5. Support seat; 6. Sand table; 101. Wedge groove 2; 311. Through groove; 312. Wedge groove 1; 31. Limit column; 32. Sliding block; 33. Rotating wheel; 34. Elastic telescopic rod 1; 35. Elastic telescopic rod 2; 36. Steel rope; 51. Connecting rod; 52. Moving block.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The utility model proposes a sand table with an adjustment structure, including a protective seat 1, a protective cover 2 is hinged on the upper side of the protective seat 1, and is used to protect the sand table 6. In order to enable the protective cover 2 to be automatically closed after opening, a torsion spring is arranged at the hinge of the protective cover 2, so that the protective cover 2 can be automatically closed later. An auxiliary opening and closing component 3 is arranged on the protective seat 1. Through the use of the auxiliary opening and closing component 3, the protective cover 2 can be automatically opened. An electric cylinder 4 is fixedly connected to the inner wall of the bottom of the protective seat 1, and a support seat 5 is fixedly connected to the output end of the electric cylinder 4. The upper side of the support seat 5 is rotatably connected to the sand table 6. By starting the electric cylinder 4, the output end of the electric cylinder 4 can drive the support seat 5 to rise and fall, so that the sand table 6 can be raised and lowered.

[0028] The cam 32 is a vertical cam 32 which is formed on the upper and lower sides of the cam 32 so as to allow the cam 32 to move out of the protective seat 1 and adjust the height. The lower side of the support seat 5 is fixedly connected to the inner wall of the top of the limit column 31, and the end of the connecting rod 51 away from the support seat 5 is fixedly connected to the moving block 52. By starting the electric cylinder 4, the output end of the electric cylinder 4 drives the support seat 5 to rise, so that the sand table 6 rises. When the sand table 6 rises to the top of the protective seat 1, the protective cover 2 can be opened to the maximum extent. At this time, when it is necessary to continue to increase the height of the sand table 6, the support seat 5 continues to rise, driving the moving block 52 to continue to move upward, squeezing the telescopic end of the elastic telescopic rod 1 34, so that the telescopic end of the elastic telescopic rod 1 34 is compressed into the wedge-shaped groove 2 101. At this time, when the support seat 5 drives the sand table 6 to continue to rise, because the protective cover 2 cannot rotate, the telescopic end of the elastic telescopic rod 2 35 contracts, and the rotating wheel 33 continues to rise, thereby ensuring that the sand table 6 continues to rise, preventing the sand table 6 from being restricted by the protective cover 2, thereby improving the use effect of the device.

[0029] It should be noted that the above-mentioned electrical components are all existing technology products. Technical personnel in this field select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. The applicant does not make specific restrictions here.

[0030] When in use, first start the electric cylinder 4, the output end of the electric cylinder 4 drives the support seat 5 to rise, so that the sand table 6 rises, and when the sand table 6 rises to the top of the protective seat 1, the protective cover 2 can be opened to the maximum extent. At this time, when it is necessary to continue to increase the height of the sand table 6, the support seat 5 continues to rise, driving the moving block 52 to continue to move upward, squeezing the telescopic end of the elastic telescopic rod 1 34, so that the telescopic end of the elastic telescopic rod 1 34 is compressed into the wedge-shaped groove 2 101. At this time, when the support seat 5 drives the sand table 6 to continue to rise, since the protective cover 2 cannot rotate, the telescopic end of the elastic telescopic rod 2 35 contracts, the rotating wheel 33 continues to rise, and the sand table 6 continues to rise. When the electric cylinder 4 is started, the output end of the electric cylinder 4 drives the support seat 5 to descend, so that the sand table 6 is stored in the protective seat 1, the telescopic end of the elastic telescopic rod 2 35 is reset, and the telescopic end of the elastic telescopic rod 1 34 is reset. At the same time, the protective cover 2 is automatically closed under the action of the torsion spring.

[0031] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sand table with an adjustable structure, comprising a protective seat (1), characterized in that: A protective cover plate (2) is hingedly connected to the upper side of the protective seat (1); an auxiliary opening and closing component (3) is arranged on the protective seat (1); an electric cylinder (4) is fixedly connected to the inner wall of the bottom of the protective seat (1); a support seat (5) is fixedly connected to the output end of the electric cylinder (4); a sand table (6) is rotatably connected to the upper side of the support seat (5); and the auxiliary opening and closing component (3) comprises: A limiting column (31), wherein the limiting column (31) is fixedly connected to the outer wall of the protective seat (1); A sliding block (32), the sliding block (32) being slidably connected to the inner wall of the limiting column (31), a rotating wheel (33) being rotatably mounted on the lower side of the sliding block (32), an elastic telescopic rod 1 (34) being fixedly connected to the outer wall of the sliding block (32), and an elastic telescopic rod 2 (35) being fixedly connected to the upper side of the sliding block (32); and a steel rope (36), wherein the steel rope (36) is slidably connected to the outer wall of the rotating wheel (33).

2. A sand table with an adjustable structure according to claim 1, characterized in that: The second elastic telescopic rod (35) is fixedly connected to the top inner wall of the limiting column (31).

3. The sand table with an adjustable structure according to claim 1, characterized in that: A through slot (311) is provided on the outer wall of the limiting column (31), and the width of the through slot (311) is greater than the diameter of the steel rope (36). A wedge-shaped slot 1 (312) is provided on a side of the limiting column (31) close to the protective seat (1).

4. The sand table with an adjustable structure according to claim 3, characterized in that: A second wedge-shaped groove (101) is provided on the outer wall of the protection seat (1), and the second wedge-shaped groove (101) is connected to the first wedge-shaped groove (312).

5. The sand table with an adjustable structure according to claim 1, characterized in that: Notches are provided on two sides of the sliding block (32).

6. The sand table with an adjustable structure according to claim 1, characterized in that: A connecting rod (51) is fixedly connected to the lower side of the support seat (5), and a moving block (52) is fixedly connected to one end of the connecting rod (51) away from the support seat (5).

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