Telescopic sandbox

Abstract

The utility model relates to the technical field of sandboxes, and discloses a telescopic sandbox which comprises a supporting plate, a surrounding plate and an adjusting mechanism, a recess is formed in the inner side of the supporting plate and used for limiting the position of the surrounding plate, and fixing mechanisms are arranged on the two sides of the supporting plate and used for fixing the position of the supporting plate. The fixing mechanism comprises fixing blocks, a fixing rod and a sleeve, the fixing blocks are fixedly connected to the two sides of the supporting plate, one end of the fixing rod is fixedly connected with a fixing buckle, one end of the sleeve is rotationally connected with an adjusting sleeve, and the fixing rod is connected with the sleeve in a sleeving mode and is in threaded connection with the inner wall of the adjusting sleeve. According to the telescopic sand box, the supporting plate, the surrounding plate and the adjusting mechanism are arranged in a matched mode, the transverse length in the sand box can be adjusted by sliding the surrounding plate, the positions of the surrounding plate and the supporting plate are fixed through the fixing mechanism, and shaking generated in the using process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sandboxes, in particular to a retractable sandbox. Background Art

[0002] Sand casting is a common metal casting process. In sand casting, the sand box is a tool used to make sand molds. The sand box usually consists of two parts, the upper sand box and the lower sand box. By merging the upper sand box and the lower sand box together, a complete sand mold is formed. Depending on the size of the product, different specifications of sand molds will be used in the molding process. In R&D and trial production enterprises, the products produced are mainly small batches of multiple varieties.

[0003] In the production process of sand casting, it is usually necessary to use a variety of sand boxes of different specifications to make castings of different sizes and shapes. However, the traditional sand box preparation is cumbersome and requires a lot of time and human resources, which makes the preparation of the sand box a heavy task in the production process. This requires a device to solve the above problem. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a retractable sandbox, which solves the problem that the size of the sandbox is inconvenient to adjust during use.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a retractable sandbox, including a support plate, a surrounding plate and an adjustment mechanism, the inner side of the support plate is provided with a recess, the recess is used to limit the position of the surrounding plate, and both sides of the support plate are provided with a fixing mechanism for fixing the position of the support plate;

[0006] The fixing mechanism comprises a fixing block, a fixing rod and a sleeve, wherein the fixing block is fixedly connected to both sides of the support plate, one end of the fixing rod is fixedly connected to a fixing buckle, one end of the sleeve is rotatably connected to an adjusting sleeve, and the fixing rod is sleeved with the sleeve and threadedly connected with the inner wall of the adjusting sleeve;

[0007] The adjustment mechanism comprises an adjustment plate, an extension plate and an adjustment rod, wherein the adjustment rod is arranged on the top of the support plate, the adjustment plate is arranged on the outer surface of the adjustment rod, and the extension plate is arranged on both sides of the adjustment plate.

[0008] Optionally, a slide groove is provided on the top of the support plate, a moving block is slidably connected to the inner wall of the slide groove, and a through hole is provided in the middle of the moving block.

[0009] Optionally, a limit block is provided at one end of the adjusting rod, and the end of the adjusting rod close to the limit block penetrates the moving block.

[0010] Optionally, a nut is threadedly connected to one end of the adjusting rod close to the limiting block, and one side of the nut is fitted with one side of the moving block.

[0011] Optionally, a fixing bolt is provided on the top of the adjustment plate, and the bottom of the fixing bolt is pressed against the upper surface of the adjustment rod.

[0012] Optionally, a friction pad is provided on the upper surface of the adjusting rod, and the friction pad is used to increase the friction with the fixing bolt.

[0013] Optionally, a compression spring is provided inside the adjustment plate, and one end of the compression spring is fixedly connected to one end of the expansion plate.

[0014] The utility model provides a retractable sandbox, which has the following beneficial effects:

[0015] The utility model provides a retractable sandbox. Through the coordinated arrangement of a support plate, a surrounding plate and an adjusting mechanism, the lateral length of the sandbox can be adjusted by sliding the surrounding plate, and the positions of the surrounding plate and the support plate can be fixed by a fixing mechanism to reduce shaking during use. Through the coordinated arrangement of an adjusting plate, an extension plate and an adjusting plate, the longitudinal length of the sandbox can be adjusted. In combination with the surrounding plate, the size of the sandbox can be adjusted as needed during use, which is more flexible and convenient to adjust during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model when in use;

[0018] Figure 3 It is a schematic structural diagram of the cross-section of the adjustment plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the sleeve of the utility model.

[0020] In the figure: 1. support plate; 2. enclosure; 3. fixing block; 4. fixing rod; 5. sleeve; 6. fixing buckle; 7. adjustment sleeve; 8. adjustment plate; 9. extension plate; 10. adjustment rod; 11. slide groove; 12. moving block; 13. limit block; 14. nut; 15. fixing bolt; 16. friction pad; 17. compression spring. DETAILED DESCRIPTION

[0021] 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. 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.

[0022] See also Figures 1 to 4The utility model provides a technical solution: a retractable sandbox, comprising a support plate 1, a panel 2 and an adjustment mechanism, a recess is provided on the inner side of the support plate 1, the recess is used to limit the position of the panel 2, and fixing mechanisms are provided on both sides of the support plate 1 to fix the position of the support plate 1;

[0023] The fixing mechanism includes a fixing block 3, a fixing rod 4 and a sleeve 5. The fixing block 3 is fixedly connected to both sides of the support plate 1. One end of the fixing rod 4 is fixedly connected to a fixing buckle 6. One end of the sleeve 5 is rotatably connected to an adjusting sleeve 7. The fixing rod 4 is sleeved with the sleeve 5 and is threadedly connected to the inner wall of the adjusting sleeve 7.

[0024] The adjustment mechanism includes an adjustment plate 8 , an extension plate 9 and an adjustment rod 10 . The adjustment rod 10 is arranged on the top of the support plate 1 , the adjustment plate 8 is arranged on the outer surface of the adjustment rod 10 , and the extension plate 9 is arranged on both sides of the adjustment plate 8 .

[0025] The support plate 1 and the enclosure 2 form a rectangle. The enclosure 2 can move inside the support plate 1 to adjust the enclosed rectangular area. The groove is used to limit the moving direction of the enclosure 2 so that the enclosure 2 can only slide horizontally. After the fixing rod 4 is engaged with the fixing block 3, the rotating adjustment sleeve 7 can receive the fixing rod 4 into the sleeve 5, thereby shortening the length of the fixing mechanism, so that the fixing rod 4 pulls the two opposite fixing blocks 3 to fix the positions of the support plate 1 and the enclosure 2. The adjusting rod 10 is set at the top of the support rod to support the adjusting plate 8. The adjusting plate 8 can slide on the adjusting rod 10, and the expansion plate 9 is pushed outward on the outside of the adjusting plate 8. When the enclosure 2 moves, its own length can be adjusted so that the expansion plate 9 and the enclosure 2 can be pressed together.

[0026] In this embodiment, as a preferred solution, a slide groove 11 is provided on the top of the support plate 1, and a moving block 12 is slidably connected to the inner wall of the slide groove 11, a through hole is provided in the middle of the moving block 12, and a limit block 13 is provided at one end of the adjusting rod 10, and the end of the adjusting rod 10 close to the limit block 13 penetrates the moving block 12, and the end of the adjusting rod 10 close to the limit block 13 is threadedly connected with a nut 14, and one side of the nut 14 is in contact with one side of the moving block 12.

[0027] The moving block 12 slides in the slide groove 11 to adjust the fixed position. The adjusting rod 10 can penetrate the through hole in the middle of the moving block 12. At the same time, one end of the adjusting rod 10 is provided with a thread for connecting with the nut 14. When in use, the limit block 13 and the nut 14 are respectively located on both sides of the moving block 12. After tightening the nut 14, the nut 14 cooperates with the limit block 13 to fix the position of the adjusting rod 10. At the same time, when sliding the moving block 12, the position of the adjusting rod 10 can also be adjusted, which is more flexible in actual use.

[0028] In this embodiment, as a preferred solution, a fixing bolt 15 is provided on the top of the adjustment plate 8, the bottom of the fixing bolt 15 is pressed against the upper surface of the adjustment rod 10, and a friction pad 16 is provided on the upper surface of the adjustment rod 10, and the friction pad 16 is used to increase the friction with the fixing bolt 15.

[0029] When the fixing bolt 15 is rotated, the fixing bolt 15 can be pressed against the top of the adjusting rod 10, thereby fixing the position of the adjusting plate 8. The fixing bolt 15 and the friction pad 16 on the adjusting rod 10 are pressed against each other, which can increase the friction between the two, making the adjusting plate 8 less likely to shake and more stable when used.

[0030] In this embodiment, as a preferred solution, a compression spring 17 is provided inside the adjustment plate 8 , and one end of the compression spring 17 is fixedly connected to one end of the expansion plate 9 .

[0031] The compression spring 17 pushes the expansion plate 9 outward. When the position of the enclosure 2 is adjusted inward or outward, the compression spring 17 can press the expansion plate 9 against the enclosure 2, so that the enclosure 2, the adjustment plate 8 and the expansion plate 9 form a rectangle, forming a sand box for casting.

[0032] In the utility model, the working steps of the device are as follows:

[0033] 1. When in use, install the enclosure 2 on the inner side of the support plate 1, then buckle the fixing rod 4 on the fixing block 3, rotate the adjustment sleeve 7, tighten the fixing rod 4, and thus fix the position of the enclosure 2 and the support plate 1;

[0034] 2. After the support plate 1 and the enclosure plate 2 are fixed, the adjustment plate 8 is put on the adjustment rod 10, and the adjustment rod 10 is inserted into the through hole at the top of the moving block 12, and the adjustment rod 10 is fixed with the nut 14;

[0035] 3. Adjust the position of the adjustment plate 8 so that the adjustment plate 8, the expansion plate 9 and the enclosure 2 form a rectangle of the required size. After adjustment, rotate the fixing bolt 15 to fix the position of the adjustment plate 8. After fixing, it can be used.

[0036] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0037] The specific implementation methods provided by the utility model are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for general technicians in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A scalable sandbox, characterized in that: It comprises a support plate (1), a surrounding plate (2) and an adjustment mechanism, wherein a recess is provided on the inner side of the support plate (1), the recess is used to limit the position of the surrounding plate (2), and fixing mechanisms are provided on both sides of the support plate (1) for fixing the position of the support plate (1); The fixing mechanism comprises a fixing block (3), a fixing rod (4) and a sleeve (5); the fixing block (3) is fixedly connected to two sides of the support plate (1); one end of the fixing rod (4) is fixedly connected to a fixing buckle (6); one end of the sleeve (5) is rotatably connected to an adjusting sleeve (7); the fixing rod (4) is sleeved with the sleeve (5) and is threadedly connected to the inner wall of the adjusting sleeve (7); The adjustment mechanism comprises an adjustment plate (8), an expansion plate (9) and an adjustment rod (10); the adjustment rod (10) is arranged on the top of the support plate (1); the adjustment plate (8) is arranged on the outer surface of the adjustment rod (10); and the expansion plate (9) is arranged on both sides of the adjustment plate (8).

2. A retractable sandbox according to claim 1, characterized in that: A sliding groove (11) is provided on the top of the support plate (1), a moving block (12) is slidably connected to the inner wall of the sliding groove (11), and a through hole is provided in the middle of the moving block (12).

3. A retractable sandbox according to claim 2, characterized in that: A limiting block (13) is provided at one end of the adjusting rod (10), and the end of the adjusting rod (10) close to the limiting block (13) penetrates the moving block (12).

4. A retractable sandbox according to claim 3, characterized in that: One end of the adjusting rod (10) close to the limiting block (13) is threadedly connected with a nut (14), and one side of the nut (14) is in contact with one side of the moving block (12).

5. A retractable sandbox according to claim 1, characterized in that: A fixing bolt (15) is provided on the top of the adjustment plate (8), and the bottom of the fixing bolt (15) is pressed against the upper surface of the adjustment rod (10).

6. A retractable sandbox according to claim 5, characterized in that: The upper surface of the adjusting rod (10) is provided with a friction pad (16), and the friction pad (16) is used to increase the friction with the fixing bolt (15).

7. A retractable sandbox according to claim 5, characterized in that: A compression spring (17) is provided inside the adjustment plate (8), and one end of the compression spring (17) is fixedly connected to one end of the expansion plate (9).

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