Sand box easy to operate

Abstract

The utility model discloses an easy-to-operate sand box, which comprises a lower box body and an upper box body, four end corners of the upper end face of the upper box body are respectively provided with a lifting lug, the front and the rear of the upper end face of the lower box body are respectively provided with a slot, and trapezoidal grooves are arranged above the front end face and the rear end face of the inner wall of each slot. Threaded holes are formed in the upper portions of one sides of the front end face and the rear end face of the lower box body, threaded rods are arranged on the inner sides of the threaded holes, clamping plates are arranged on the opposite sides of the outer surfaces of the two threaded rods, the threaded holes are connected with the inserting grooves through grooves, and inserting plates are fixedly installed on the front portion and the rear portion of the lower end face of the upper box body. Clamping grooves are formed in the lower portions of the opposite sides of the outer surfaces of the two inserting plates correspondingly, and trapezoidal blocks are installed on the upper portions of the front end faces and the rear end faces of the inserting plates correspondingly. By arranging the trapezoid block and the trapezoid groove, the position of the upper box body relative to the lower box body can be adjusted, after the box is closed, the box can be conveniently limited, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sand boxes, and specifically relates to an easy-to-operate sand box. Background Technique

[0002] Casting refers to a forming method in which molten metal is poured into a mold and, after solidification, a casting with a certain shape and properties is obtained. The metal parts obtained by the casting method are called castings. There are many casting methods, among which sand casting is the most widely used. A sand box is an essential device used in sand casting. During the casting process, the sand box is used to put molding sand into it to form a mold with the required shape. In the actual sand casting process, foundry workers generally use the method of scribing with chalk on the upper and lower boxes for positioning, but such positioning is inaccurate. Currently, in casting production, a method of cooperating nuts, screws and gaskets is generally used to lock the sand box, but this device will reduce the flange strength and is troublesome to operate.

[0003] The existing sand casting box with convenient locking and positioning in the prior art CN208288944U is provided with an installation locking and positioning device. When performing the operation of closing the mold, first lift the upper box, insert the lower male buckle into the lower female buckle, and then insert the U-shaped positioning pin into the lower box positioning cylinder until the lower end face of the upper box contacts the upper end face of the lower box. At this time, the U-shaped positioning pin is inserted into the plug lock, and the U-shaped positioning pin can cooperate with the plug lock to lock and fix, so that the upper and lower boxes can be easily positioned and locked when closing the mold, thus solving the above technical problems.

[0004] However, most sand boxes are made by casting or steel plate welding. During mold removal or turning over the box, the sand box often needs to be hoisted multiple times. This casting method requires multiple hoisting operations, which is relatively cumbersome, has low production efficiency, and is not convenient for aligning and positioning between the upper box and the lower box. Therefore, it does not meet the existing requirements, and for this reason, we propose an easy-to-operate sand box. Content of the Utility Model

[0005] The purpose of the utility model is to provide an easy-to-operate sand box to solve the problems mentioned in the above background technique, that is, most sand boxes are made by casting or steel plate welding. During mold removal or turning over the box, the sand box often needs to be hoisted multiple times. This casting method requires multiple hoisting operations, which is relatively cumbersome, has low production efficiency, and is not convenient for aligning and positioning between the upper box and the lower box.

[0006] To achieve the above object, the present utility model provides the following technical solution: An easy-to-operate sand box, comprising a lower box body and an upper box body. Lifting lugs are installed at four end corners of the upper end surface of the upper box body. Slots are arranged at the front and back of the upper end surface of the lower box body. Trapezoidal grooves are arranged above the front end surface and the rear end surface of the inner wall of the slot. Threaded holes are arranged above one side of the front end surface and the rear end surface of the lower box body. A threaded rod is arranged inside the threaded hole. Clamping plates are arranged on the opposite sides of the outer surfaces of the two threaded rods. The threaded hole is connected to the slot through a groove. Plug plates are fixedly installed at the front and back of the lower end surface of the upper box body. Card slots are arranged below the opposite sides of the outer surfaces of the two plug plates. Trapezoidal blocks are installed above the front end surface and the rear end surface of the plug plate.

[0007] Preferably, rockers are sleeved on the opposite sides of the outer surfaces of the two threaded rods. The other end of the threaded rod is rotatably connected to the clamping plate through a bearing.

[0008] Preferably, the threaded rod is screwed with the threaded hole. The clamping plate is adapted to the groove. Round holes are arranged above the other side of the front and rear of the inner part of the lower box body. A telescopic sleeve rod is arranged inside the round hole.

[0009] Preferably, the telescopic sleeve rod comprises a thick sleeve and a thin sleeve rod, and the thin sleeve rod is clamped into the inside of the thick sleeve. The thick sleeve is fixedly connected to the inner wall of the round hole. The thin sleeve rod is fixedly connected to the outer surface of the clamping plate.

[0010] Preferably, the clamping plate is adapted to the card slot. The plug plate is adapted to the slot. The size of the trapezoidal block is smaller than the size of the trapezoidal groove. The inclined surface of the trapezoidal block has the same angle as the inclined surface of the inner wall of the trapezoidal groove.

[0011] Preferably, a seal is fixedly connected to the lower part of the inner wall of the upper box body through a limiting groove. The outer surface of the seal is attached to the inner wall of the lower box body.

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

[0013] 1. In the present utility model, by providing a trapezoidal block, a slot, a plug board, and a trapezoidal groove, during the process of moving the upper box body closer to the lower box body, the plug board is inserted into the inner sides of the trapezoidal groove and the slot. As the upper box body continues to move downward, it drives the trapezoidal block to move downward. The trapezoidal block can be inserted into the inner side of the trapezoidal groove, and the inclined surface of the trapezoidal groove can contact the inclined surface of the trapezoidal block to adjust the position of the trapezoidal block, thereby adjusting the position of the upper box body to align the upper box body with the lower box body. By providing a threaded rod, a threaded hole, a clamping plate, and a clamping groove, when the plug board is completely inserted into the inner side of the slot and the trapezoidal block is inserted into the inner side of the trapezoidal groove, the rocker can be shaken. The rotation of the rocker drives the threaded rod to rotate. The threaded rod moves inside the threaded hole, driving the clamping plate to move towards the inner side of the clamping groove. The clamping plate is inserted into the inner side of the clamping groove to limit the plug board, and the upper box body and the lower box body can be locked. The utility model can adjust the position of the upper box body relative to the lower box body by providing a trapezoidal block and a trapezoidal groove, and it is convenient to limit them after the boxes are combined, which is convenient for use. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the whole of the present utility model;

[0015] Figure 2 is a main sectional view of the whole of the present utility model;

[0016] Figure 3 is a partial structural view of the slot of the present utility model.

[0017] In the figure: 1, lower box body; 2, upper box body; 3, lifting lug; 4, plug board; 5, trapezoidal groove; 6, threaded rod; 7, trapezoidal block; 8, slot; 9, clamping groove; 10, clamping plate; 11, groove; 12, threaded hole. Detailed Embodiment

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] Please refer to Figures 1 to 3, an embodiment provided by the present utility model: An easy-to-operate sand box, including a lower box body 1 and an upper box body 2. Lifting lugs 3 are installed at the four end corners of the upper end surface of the upper box body 2. Slots 8 are arranged at the front and back of the upper end surface of the lower box body 1. Trapezoidal grooves 5 are arranged above the front end surface and the rear end surface of the inner wall of the slot 8. Threaded holes 12 are arranged above one side of the front end surface and the rear end surface of the lower box body 1. A threaded rod 6 is arranged inside the threaded hole 12. On the opposite side of the outer surfaces of the two threaded rods 6, there is a clamping plate 10. The threaded hole 12 is connected to the slot 8 through a groove 11. At the front and back of the lower end surface of the upper box body 2, there are fixed plug boards 4 installed. Below the opposite sides of the outer surfaces of the two plug boards 4, there are card slots 9 arranged. Above the front end surface and the rear end surface of the plug board 4, there are trapezoidal blocks 7 installed.

[0020] Furthermore, on the opposite sides of the outer surfaces of the two threaded rods 6, there are rockers sleeved. The other end of the threaded rod 6 is rotationally connected to the clamping plate 10 through a bearing. The threaded rod 6 can be rotated by the rocker. When the threaded rod 6 moves, it can drive the clamping plate 10 to move.

[0021] The threaded rod 6 is screwed with the threaded hole 12. The clamping plate 10 is adapted to the groove 11. Circular holes are arranged above the other sides of the front and rear inside the lower box body 1. Inside the circular holes, there are telescopic sleeve rods arranged. The threaded rod 6 can move inside the threaded hole 12, and the clamping plate 10 can be retracted into the inside of the groove 11.

[0022] The telescopic sleeve rod includes a thick sleeve and a thin sleeve rod, and the thin sleeve rod is inserted into the inside of the thick sleeve. The thick sleeve is fixedly connected to the inner wall of the circular hole, and the thin sleeve rod is fixedly connected to the outer surface of the clamping plate 10, improving the stability of the telescopic sleeve rod and the stability of the movement of the clamping plate 10.

[0023] The clamping plate 10 is adapted to the card slot 9. The plug board 4 is adapted to the slot 8. The size of the trapezoidal block 7 is smaller than the size of the trapezoidal groove 5. The inclined surface angle of the trapezoidal block 7 is the same as the inclined surface angle of the inner wall of the trapezoidal groove 5. The clamping plate 10 can be inserted into the inside of the card slot 9, the plug board 4 can be inserted into the inside of the slot 8, the trapezoidal block 7 can be inserted into the inside of the trapezoidal groove 5, and the inclined surface of the trapezoidal groove 5 can contact the inclined surface of the trapezoidal block 7 to adjust the position of the trapezoidal block 7.

[0024] Below the inner wall of the upper box body 2, there is a sealing member fixedly connected through a limiting groove. The outer surface of the sealing member is attached to the inner wall of the lower box body 1, improving the sealing performance of the connection between the upper box body 2 and the lower box body 1.

[0025] When the easy-to-operate sand box is in use, by providing trapezoidal blocks 7, slots 8, insertion plates 4, and trapezoidal grooves 5, during the process of moving the upper box body 2 downward towards the lower box body 1, the insertion plate 4 is inserted into the inner sides of the trapezoidal groove 5 and the slot 8. As the upper box body 2 continues to move downward, it drives the trapezoidal block 7 to move downward. The trapezoidal block 7 can be inserted into the inner side of the trapezoidal groove 5, and the inclined surface of the trapezoidal groove 5 can contact the inclined surface of the trapezoidal block 7 to adjust the position of the trapezoidal block 7, thereby adjusting the position of the upper box body 2 to align the upper box body 2 with the lower box body 1. By providing threaded rods 6, threaded holes 12, clamping plates 10, and clamping grooves 9, when the insertion plate 4 is completely inserted into the inner side of the slot 8 and the trapezoidal block 7 is inserted into the inner side of the trapezoidal groove 5, the rocker can be shaken. The rotation of the rocker drives the threaded rod 6 to rotate. The threaded rod 6 moves inside the threaded hole 12, driving the clamping plate 10 to move towards the inner side of the clamping groove 9. The clamping plate 10 is inserted into the inner side of the clamping groove 9 to limit the insertion plate 4, and the upper box body 2 and the lower box body 1 can be locked. By providing trapezoidal blocks 7 and trapezoidal grooves 5, the utility model can adjust the position of the upper box body 2 relative to the lower box body 1, and after the boxes are combined, it is convenient to limit it, which is convenient for use.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An easy-to-operate sand box, comprising a lower box body (1) and an upper box body (2), and lifting lugs (3) are installed at four end corners of the upper end surface of the upper box body (2), and it is characterized in that: Slots (8) are provided at the front and rear of the upper end face of the lower box body (1). Trapezoidal grooves (5) are provided above the front and rear end faces of the inner wall of the slot (8). Threaded holes (12) are provided above one side of the front and rear end faces of the lower box body (1). A threaded rod (6) is provided inside the threaded hole (12). On the opposite sides of the outer surfaces of the two threaded rods (6), there are clamping plates (10). The threaded hole (12) is connected to the slot (8) through a groove (11). At the front and rear of the lower end face of the upper box body (2), insertion plates (4) are fixedly installed. At the lower sides of the opposite sides of the outer surfaces of the two insertion plates (4), there are card slots (9). Above the front and rear end faces of the insertion plate (4), trapezoidal blocks (7) are installed.

2. The easy-to-operate sand box according to claim 1, characterized in that: Rockers are sleeved on the opposite sides of the outer surfaces of the two threaded rods (6). The other end of the threaded rod (6) is rotatably connected to the clamping plate (10) through a bearing.

3. An easy-to-operate sand box according to claim 1, characterized in that: The threaded rod (6) is screwed with the threaded hole (12). The clamping plate (10) is adapted to the groove (11). Circular holes are provided above the other sides of the front and rear inside the lower box body (1). A telescopic sleeve rod is provided inside the circular hole.

4. An easy-to-operate sand box according to claim 3, characterized in that: The telescopic sleeve rod includes a thick sleeve and a thin sleeve rod, and the thin sleeve rod is inserted into the inside of the thick sleeve. The thick sleeve is fixedly connected to the inner wall of the circular hole. The thin sleeve rod is fixedly connected to the outer surface of the clamping plate (10).

5. The easy-to-operate sand box according to claim 1, characterized in that: The clamping plate (10) is adapted to the card slot (9). The insertion plate (4) is adapted to the slot (8). The size of the trapezoidal block (7) is smaller than the size of the trapezoidal groove (5). The inclined surface angle of the trapezoidal block (7) is the same as the inclined surface angle of the inner wall of the trapezoidal groove (5).

6. The easy-to-operate sand box according to claim 1, characterized in that: A seal is fixedly connected to the lower part of the inner wall of the upper box body (2) through a limiting groove. The outer surface of the seal is attached to the inner wall of the lower box body (1).

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