Anti-blocking sand box unloading device

Abstract

The utility model discloses an anti-blocking unloading sand box device which comprises an inner cylinder, the inner cylinder is embedded in an outer cylinder, a bearing plate is welded above the inner cylinder and can vertically move up and down, cast steel shots are arranged between the outer cylinder and the inner cylinder, a conical sand guide inner partition plate is arranged below the cast steel shots, a sand unloading cylinder bottom plate is fixedly connected below the outer cylinder, and the bearing plate is welded below the sand unloading cylinder bottom plate. A force bearing plate is connected to the upper portion of the outer cylinder, plain round steel bars are welded to the interior of the outer cylinder in the height direction of the inner wall, a closed hoop and the outer cylinder are continuously welded in the circumferential direction at the intersecting annular position of the outer cylinder and the inner cylinder, and four piston rotary sand dredging assemblies used for sand discharging are fixedly connected to the periphery of the outer cylinder at equal intervals. The remote control motor is adopted to control the rotary telescopic rod to extend into the outer barrel to rotate and stir cast steel shots, the sand blocking and caking phenomena of a sand discharging opening are effectively avoided, the inclination phenomenon of the inner barrel in the movement process is limited through the arrangement of the closed hoop and the plain round steel bars between the inner barrel and the outer barrel, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to an anti-blocking unloading sand box device, which is applicable to the field of building construction. Background Art

[0002] In the construction of steel structure projects, sand boxes are widely used for temporary support of steel structures due to their advantages of being environmentally friendly and low-cost. However, this method has the following disadvantages:

[0003] (1) Sand blockage problem: The cast steel shot between the inner and outer cylinders is prone to blockage, especially at the sand outlet. The sand clumps due to external pressure and moisture, which affects the smooth flow of sand.

[0004] (2) Control of quicksand rate: Traditional management methods mainly rely on manual labor, which makes it difficult to achieve accurate and rapid control of quicksand rate and also cannot meet the flexible adjustment of set conditions.

[0005] (3) Tilting problem: A large gap between the inner and outer cylinders can easily cause the equipment to tilt. The center lines of the two are not on the same straight line, which not only affects the unloading speed, but also increases the risk of deformation of the inner cylinder, thus shortening the service life of the equipment.

[0006] To address the aforementioned issues, there is an urgent need to design a new type of unloading sandbox to improve its operability and robustness. Utility Model Content

[0007] This utility model provides an anti-blockage unloading sand box device to overcome the defects of existing technology, such as easy blockage inside the sand box and easy deformation of the inner cylinder, which leads to a shortened equipment life.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] This utility model discloses an anti-blocking unloading sand box device, including an inner cylinder embedded inside an outer cylinder, with a load-bearing plate welded above it, allowing for vertical movement. Cast steel shot is placed between the outer and inner cylinders, and a conical sand-guiding inner partition is located below the cast steel shot. A sand-unloading cylinder bottom plate is fixedly connected to the bottom of the outer cylinder, with a load-bearing plate welded below it. A load-bearing plate is connected to the top of the outer cylinder, and a plain round steel bar is welded along the height of its inner wall, located at the annular portion where the outer and inner cylinders intersect. A closing ring is continuously welded to the outer cylinder in a circumferential direction. Four piston-rotary sand-discharging assemblies for sand discharge are fixedly connected at equal intervals around the periphery of the outer cylinder.

[0010] Furthermore, the piston-rotary sand-draining assembly is tilted downwards to ensure that the sand is discharged naturally. It includes a connecting steel bar, one end of which is fixedly connected to the outer cylinder and the other end is fixedly connected to the motor. The motor is fixedly connected to a rotating telescopic rod along its central axis. Four vertical pins that are inserted into the outer cylinder through the sand discharge port are fixedly connected to the rotating telescopic rod.

[0011] Furthermore, the outer cylinder is made of Φ299×20mm round steel pipe; the inner cylinder is made of Φ245×8 round steel pipe.

[0012] Furthermore, the plain round steel bar has a length of 200mm and a diameter of 6mm, and the closed ring is 10mm. Its inner ring diameter is 21mm larger than that of the inner cylinder, which limits the occurrence of unilateral tilting or "sand overflow" when the inner cylinder moves under excessively large gap conditions.

[0013] Furthermore, the cast steel shot is 0.5mm to 1mm, which reduces the accumulation phenomenon.

[0014] Furthermore, the conical sand guide inner baffle is conical and extends inclined from the middle of the outer cylinder to the surrounding area. Its inclination angle is the same as that of the piston-rotating sand-draining assembly, guiding the sand into the outlet and reducing the washing phenomenon.

[0015] Furthermore, the motor controls the spiral extension and retraction of the rotating telescopic rod to clear the blockage of cast steel shot at the sand discharge port. At the same time, the sand discharge rate is controlled by controlling the distance and depth of the rotating telescopic rod extending into the sand discharge port. When the sand box has finished discharging sand or is in a state of waiting to be discharged, the rotating telescopic rod is fully extended into the sand discharge port to stop discharging sand.

[0016] The beneficial effects achieved by this utility model are as follows: The remote-controlled rotating telescopic rod can extend into the outer cylinder to rotate and agitate the cast steel shot, effectively solving the problem of sand blockage and clumping at the discharge port. Simultaneously, when the rotating telescopic rod is stationary at its deepest point inside the discharge port, it can prevent the cast steel shot from flowing out. The remote-controlled rotating telescopic rod allows operators to adjust the opening of the discharge port and the rapid discharge of sand in real time, ensuring the accuracy and flexibility of the sand flow rate. Through the piston-type sand guide assembly and the inclined design, the sand can flow out naturally, reducing blockages caused by accumulation. Furthermore, the excellent fluidity of the filled cast steel shot reduces clumping compared to traditional quartz sand, further ensuring uniform sand flow and greatly improving the sand discharge rate. It also reduces the risk of equipment tilting: the closed ring and smooth round steel bars between the inner and outer cylinders effectively limit the tilting of the inner cylinder during movement, ensuring the stability of the equipment during operation and extending its service life. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a vertical cross-sectional view of the present invention;

[0020] Figure 3 This is a horizontal cross-sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram of the sand-stirring or sealing state of the piston rotary sand-draining assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the sand flow state of the piston rotary sand-draining component of this utility model.

[0023] In the diagram: 1. Outer cylinder; 2. Inner cylinder; 3. Sand discharge cylinder bottom plate; 4. Support plate; 5. Closed ring hoop; 6. Piston rotary sand discharge assembly; 61. Sand discharge port; 62. Connecting steel bar; 63. Motor; 64. Telescopic screw rod; 65. Vertical pin; 7. Plain round steel bar; 8. Cast steel shot; 9. Conical sand guide inner partition. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example 1

[0026] like Figures 1-5 As shown, an anti-blocking unloading sand box device includes an inner cylinder 2, which is embedded inside an outer cylinder 1. A load-bearing plate 4 is welded above the inner cylinder 2, allowing it to move vertically up and down. Cast steel shot 8 is placed between the outer cylinder 1 and the inner cylinder 2. Below the cast steel shot 8 is a conical sand-guiding inner partition 9. A sand unloading cylinder bottom plate 3 is fixedly connected to the bottom of the outer cylinder 1. A load-bearing plate 4 is welded below the sand unloading cylinder bottom plate 3. The load-bearing plate 4 is connected to the top of the outer cylinder 1. A ring of plain round steel bars 7 is welded along the height direction of the inner wall inside the outer cylinder 1. At the annular part where the outer cylinder 1 and the inner cylinder 2 intersect, a closed ring hoop 5 is continuously welded to the outer cylinder 1 in a circumferential direction. Four piston-rotary sand-discharging components 6 are fixedly connected at equal intervals around the periphery of the outer cylinder 1 for sand discharge.

[0027] The piston-rotating sand-draining assembly 6 is tilted downwards to ensure that the sand is discharged naturally. It includes a connecting steel bar 62, one end of which is fixedly connected to the outer cylinder 1 and the other end is fixedly connected to the motor 63. The motor 63 is fixedly connected to a rotating telescopic rod 64 along its central axis. The rotating telescopic rod 64 is fixedly connected to four vertical pins 65 that are inserted into the outer cylinder 1 through the sand discharge port 61.

[0028] The outer cylinder 1 is made of Φ299×20mm round steel pipe; the inner cylinder 2 is made of Φ245×8 round steel pipe.

[0029] The plain round steel bar 7 is 200mm long and Φ6mm in size, and the closed ring hoop 5 is Φ10mm. Its inner ring diameter is larger than that of the inner cylinder 2 by 1mm, which can limit the occurrence of unilateral tilting or "sand overflow" when the inner cylinder 2 moves under excessively large gap conditions.

[0030] The cast steel shot 8 is 0.5mm to 1mm cast steel shot. Compared with traditional quartz sand, this material can flow more smoothly and reduce accumulation.

[0031] The conical sand guide inner baffle 9 is conical and extends from the middle of the outer cylinder outwards at an angle equal to that of the piston-rotating sand-draining assembly 6, which can effectively guide sand into the outlet and reduce scouring.

[0032] The motor 63 controls the spiral extension and retraction of the rotating telescopic rod 64 to clear the blockage of the cast steel shot 8 at the sand discharge port 61. At the same time, the sand discharge rate is controlled by controlling the distance and depth of the rotating telescopic rod 64 into the sand discharge port 61. When the sand box has finished discharging sand or is in the state of waiting to be discharging sand, the rotating telescopic rod 64 can be fully extended into the sand discharge port 61 to stop discharging sand.

[0033] It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention. The terminology used in the description of this application is only for describing specific embodiments and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings indicate similar items, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

Claims

1. A sand box unloading device for preventing blockage, characterized in that, The device includes an inner cylinder embedded inside an outer cylinder, with a load-bearing plate welded above it. Cast steel shot is placed between the outer and inner cylinders, and a conical sand-guiding inner baffle is placed below the cast steel shot. A sand-discharging cylinder bottom plate is fixedly connected to the bottom of the outer cylinder, and a load-bearing plate is welded below the sand-discharging cylinder bottom plate. A load-bearing plate is connected to the top of the outer cylinder, and plain round steel bars are welded along the height of the inner wall inside the plate. The plate is located at the annular part where the outer and inner cylinders intersect, and a closing ring is continuously welded to the outer cylinder in the circumferential direction. Several piston-rotary sand-discharging components for sand discharge are fixedly connected at equal intervals around the periphery of the outer cylinder. The piston-rotating sand-draining assembly is tilted downwards to ensure that the sand is discharged naturally. It includes a connecting steel bar, one end of which is fixedly connected to the outer cylinder and the other end is fixedly connected to the motor. The motor is fixedly connected to a rotating telescopic rod along its central axis. Four vertical pins that are inserted into the outer cylinder through the sand discharge port are fixedly connected to the rotating telescopic rod.

2. The anti-blocking unloading sand box device according to claim 1, characterized in that, The outer cylinder is made of Φ299×20mm round steel pipe; the inner cylinder is made of Φ245×8 round steel pipe.

3. The anti-blocking unloading sand box device according to claim 1, characterized in that, The plain round steel bar is 200mm long and 6mm in diameter, with a closed ring hoop of 10mm. Its inner ring diameter is 21mm larger than that of the inner cylinder, which limits the occurrence of unilateral tilting or "sand overflow" when the inner cylinder moves under excessively large gap conditions.

4. The anti-blocking unloading sand box device according to claim 1, characterized in that, The cast steel shot is 0.5mm to 1mm in size, which reduces the accumulation of shot.

5. The anti-blocking unloading sand box device according to claim 1, characterized in that, The conical sand guide inner baffle is conical and extends inclined from the middle of the outer cylinder to the surrounding area. Its inclination angle is the same as that of the piston rotary sand-draining assembly, which guides the sand into the outlet and reduces the washing phenomenon.

6. The anti-blocking unloading sand box device according to claim 1, characterized in that, The motor controls the spiral extension and retraction of the rotating telescopic rod to clear the blockage of cast steel shot at the sand discharge port. At the same time, the sand discharge rate is controlled by controlling the distance and depth of the rotating telescopic rod into the sand discharge port. When the sand box has finished discharging sand or is in the state of waiting to discharge sand, the rotating telescopic rod is fully extended into the sand discharge port to stop the sand discharge.

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