Novel sand box prepressing device
By using a limiting device composed of adjustable height limiting plates and steel plates in the sand box pre-pressing device, the problems of insufficient jack top flight and transverse movement of the sand box in traditional devices are solved, and flexible adaptation to the pre-pressing of sand boxes and jacks of different specifications is achieved, reducing costs and safety risks.
Patent Information
- Application Number
- CN202422135590.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-08-31
AI Technical Summary
The height of the traditional sand box pre-pressing device is fixed, resulting in insufficient jack top range, and additional materials are needed to increase cost and time. The horizontal pulling of the sand box is easy to tilt and the position is difficult to finely adjust, which poses safety hazards.
The limiting device consisting of adjustable height limit plates and steel plates allows the sand box to be lifted from the top, and the appropriate limit plates are selected according to the height of the sand box and the jack top stroke for pre-pressing to avoid insufficient jack top stroke.
It improves the flexibility and safety of the pre-pressure device, reduces material costs and construction time, avoids sand box tilt and safety hazards, and improves construction efficiency.
Smart Images
Figure CN223198020U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a novel sand box pre-pressing device. Background Art
[0002] The limiting device of the traditional sand box preloading device is fixed, and the whole is a steel frame with a limiting device on the top. This method has two major disadvantages: on the one hand, the height of the top limiting device of the traditional sand box preloading device is fixed, so that in the actual process, when the jack is preloading the sand box, when the jack's top travel is insufficient, it can only be assisted by adding a certain height of material on the top of the jack, which is not conducive to saving material costs and construction time, and cannot adapt to the changing construction requirements of the construction site; on the other hand, the top limiting device of the traditional sand box preloading device is closed and fixed, resulting in the sand box can only be manually pulled horizontally to the preloading position when it is in place. This is easy to cause the sand box top bucket to tilt, affecting the subsequent preloading effect. Secondly, because it is pulled horizontally, it is difficult to fine-tune the position of the sand box when it is preloaded, which may cause eccentricity during preloading. Thirdly, the preloading device may overturn during the horizontal pulling, posing a major safety hazard. Fourthly, the labor intensity of the operators is high.
[0003] Therefore, in order to reduce the construction cost of sand box preloading, improve the quality of sand box preloading, and enhance the safety of sand box preloading work, it is very necessary to study a sand box preloading device that can flexibly cope with different sand box specifications and different top-stroke jacks, is easy to install in place, and does not require horizontal pulling of the sand box and jack. Utility Model Content
[0004] In view of the above problems, the present invention provides a novel sand box pre-pressing device, which effectively solves the problems pointed out in the background technology.
[0005] The technical solution adopted in this utility model is:
[0006] A new sand box pre-pressing device includes a steel frame body and a limit device. The limit device includes multiple pairs of left limit plates and right limit plates fixed on the left and right sides above the steel frame body, and steel plates matching the left limit plates and the right limit plates. A gap is left between the left limit plate and the right limit plate for hoisting the sand box.
[0007] Preferably, the length of the steel plate between the left limiting plate and the right limiting plate is greater than the width of the gap for hoisting the sand box.
[0008] The combination of the steel plate and the left and right limit plates not only makes it easier to hoist the sand box from above, but also allows the left and right ends of the steel plate to press against the bottom of the left and right limit plates to form support during pre-compression.
[0009] In order to ensure the working performance and safety of the limit plate and avoid economic losses and safety hazards caused by bending, deformation or damage of the limit plate, the maximum load required by the preloading device should be counted in advance, and the corresponding limit plate material and thickness should be calculated and determined.
[0010] In order to ensure that the steel plate does not bend or deform significantly after being subjected to force during pre-pressing in the sand bucket, and to avoid economic losses and safety hazards caused by bending of the steel plate, the maximum load required by the pre-pressing device should be counted in advance, and the corresponding steel plate material and thickness should be calculated and determined.
[0011] Preferably, the plurality of pairs of the left limit plates and the right limit plates are equidistantly distributed along the longitudinal direction of the steel frame body.
[0012] Multiple pairs of left limit plates and right limit plates distributed longitudinally can select left limit plates and right limit plates of appropriate height for use according to different sand box heights and jacks during pre-pressing, thereby avoiding insufficient top travel of the jack, improving the flexibility of the pre-pressing device, and being able to meet the use of sand boxes of different heights and jacks of different strokes. Limit plates set at different heights can adapt to the pre-pressing work of jacks and sand boxes of different models and specifications.
[0013] Preferably, the left limit plate and the right limit plate are fixed to the steel frame body by welding.
[0014] The left limit plate and the right limit plate are fixed to the steel frame body by welding, which ensures the fixing strength between the limit plate and the steel frame body. At the same time, in order to ensure the working performance and safety of the limit plate during pre-pressing of the sand bucket, the contact part between the limit plate and the steel frame body should be fully welded, and the weld quality should meet the requirements.
[0015] Preferably, the steel frame body includes a bottom beam and vertical beams, and the bottom beam and vertical beams are fixed together by welding.
[0016] Preferably, the bottom beam and the vertical beam are both made of I-beams.
[0017] The vertical beams and bottom beams of the preloading device are both made of I-beams, which ensures the overall stiffness performance of the preloading device and guarantees the overall stability of the preloading device.
[0018] The utility model adopts multiple pairs of left limit plates and right limit plates distributed along the longitudinal direction, and a limit device composed of steel plates, which not only enables the sand box to be hoisted in from the top, solving the problem caused by the lateral movement of the sand box, but also can select left limit plates and right limit plates of appropriate height to perform pre-pressing operation according to the height of the sand box and the top stroke of the jack during pre-pressing, which can avoid insufficient top stroke of the jack during pre-pressing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a side structural diagram of the utility model;
[0020] Figure 2 for Figure 1 Schematic diagram of the top view structure;
[0021] Figure 3 This is a schematic diagram of the side structure of the utility model when performing pre-pressing work;
[0022] Figure 4 for Figure 3 Schematic diagram of the top view structure. DETAILED DESCRIPTION
[0023] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.
[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0025] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.
[0027] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0029] The present invention will be described in further detail below through specific embodiments with reference to the accompanying drawings.
[0030] like Figure 1-2 As shown, a new type of sand box pre-pressing device includes a steel frame body 1 and a limit device 2. The limit device 2 includes multiple pairs of left limit plates 21 and right limit plates 22 fixed on the left and right sides above the steel frame body 1, and steel plates 23 matching the left limit plates 21 and the right limit plates 22. A gap is left between the left limit plates 21 and the right limit plates 23 for hoisting the sand box.
[0031] The length of the steel plate 23 between the left limiting plate 21 and the right limiting plate 22 is greater than the width of the gap for hoisting the flask.
[0032] The plurality of pairs of the left limiting plates 21 and the right limiting plates 22 are equidistantly distributed along the longitudinal direction of the steel frame body 1 .
[0033] The left limiting plate 21 and the right limiting plate 22 are fixed to the steel frame body 1 by welding.
[0034] The steel frame body 1 includes a bottom beam 11 and vertical beams 12, and the bottom beam 11 and vertical beams 12 are fixed together by welding.
[0035] The bottom beam 11 and the vertical beam 12 are both made of I-beams.
[0036] like Figure 3-4 As shown, when the utility model is pre-pressed, the specific operation method is as follows:
[0037] First, the sand box 3 to be compacted is hoisted from above through the sand box hoisting gap to the target position using the lifting ring 4 on the sand box 3;
[0038] Then, the jack 5 is lifted vertically and placed on the top of the sand box 3;
[0039] Next, according to the height of the sand box 3 and the lifting range of the jack 5, the left limit plate 21 and the right limit plate 22 of appropriate height are selected for use, and the steel plate 23 is hoisted from the side to the bottom of the target left limit plate 21 and the right limit plate 22. The operator cooperates to put the steel plate 23 in place to ensure that the position of the steel plate 23 is accurate;
[0040] Finally, the oil pump of the jack 5 is started, and the lifting equipment for the steel plate 23 can be removed until the steel plate 23 is lifted up. At this time, the pre-pressing operation of the sand box 3 begins.
[0041] In the above-mentioned operation, the sand box 3 is hoisted in from above, which solves the problem caused by the lateral movement of the sand box. At the same time, the design of multiple pairs of left limit plates 21 and right limit plates 22 facilitates the selection of appropriate left limit plates 21 and right limit plates 22 according to the height of the sand box 3 and the top stroke of the jack 5 during operation, thereby avoiding insufficient top stroke of the jack 5 during pre-pressing operation.
[0042] Finally, it should be noted that the above examples are merely specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments and is subject to numerous variations. All variations that can be directly derived or conceived by a person of ordinary skill in the art from the disclosure of the present invention should be considered within the scope of protection of the present invention.
Claims
1. A new type of sand box pre-pressing device, characterized in that: The invention comprises a steel frame body (1) and a limiting device (2), wherein the limiting device (2) comprises a plurality of pairs of left limiting plates (21) and right limiting plates (22) respectively fixed on the left and right sides above the steel frame body (1), and steel plates (23) matching the left limiting plates (21) and the right limiting plates (22), and a gap is left between the left limiting plates (21) and the right limiting plates (22) for hoisting the sand box.
2. A novel flask pre-pressing device according to claim 1, characterized in that: The length of the steel plate (23) between the left limiting plate (21) and the right limiting plate (22) is greater than the width of the gap for hoisting the sand box.
3. A novel flask pre-pressing device according to claim 1, characterized in that: A plurality of pairs of the left limiting plates (21) and the right limiting plates (22) are distributed at equal distances along the longitudinal direction of the steel frame body (1).
4. A novel flask pre-pressing device according to claim 3, characterized in that: The left limiting plate (21) and the right limiting plate (22) are fixed to the steel frame body (1) by welding.
5. The novel flask pre-pressing device according to claim 1 is characterized in that: The steel frame body (1) comprises a bottom beam (11) and a vertical beam (12), and the bottom beam (11) and the vertical beam (12) are fixed together by welding.
6. A novel flask pre-pressing device according to claim 5, characterized in that: The bottom beam (11) and the vertical beam (12) are both made of I-steel.