A precision large product transport case

Abstract

The utility model discloses a kind of transport cases of precision big products, including box and its containing cavity a pair of fixed crossbeam. Each fixed crossbeam is installed with movable support crossbeam by sliding pair, so that it can move along the length direction of box, to flexibly adapt product of different size. Movable support crossbeam is equipped with pressing device, for product is pressed and fixed. The core of the utility model is, by adjustable support crossbeam, can support point be accurately set in the optimal stress position of product length direction, maximum limit from mechanics principle has inhibited the bending deformation of product due to self weight and transportation vibration, effectively protected the precision index such as flatness of product, greatly improved the versatility of single box, reduced cost.

Description

Technical Field

[0001] This application relates to the field of precision large product transportation vehicles, and in particular to a transportation box for precision large products. Background Technology

[0002] In the field of precision equipment manufacturing, the transportation of large precision products (such as large precision molds, machine tool guideways, semiconductor processing equipment cavities, and large optical platforms) has always been a critical and challenging aspect. These products typically have characteristics such as enormous weight, limited structural rigidity, and extremely high requirements for flatness and geometric tolerances.

[0003] Currently, the commonly known method for securing transport boxes for large products involves installing a fixed support structure inside the box and filling it with cushioning materials such as foam and wood chips. However, this traditional method has the following significant drawbacks:

[0004] First, the support position is fixed and cannot be adjusted. Since different products vary in size and specifications, their ideal mechanical support points also differ. A fixed support structure cannot adapt to multiple products, resulting in extremely poor versatility. Customizing dedicated transport boxes for specific products leads to high costs and complex warehouse management.

[0005] Secondly, and more importantly, improperly designed support points can easily cause the product to bend and deform under its own weight. During long-distance transport, continuous vibration and impact amplify this effect. For fixed-support transport containers, the support points are often placed where it is convenient for the container structure (such as both ends), rather than at the optimal locations for the product to bear the stress. This can cause the product to undergo elastic deformation or even plastic deformation beyond its permissible range under the combined action of its own weight and transport load, directly leading to the permanent loss of critical precision such as flatness and straightness, resulting in product scrapping and significant economic losses. Utility Model Content

[0006] The purpose of this application is to provide a transport box for large precision products that can flexibly adapt to different product sizes and effectively protect the inherent precision of the products by optimizing the position of the support points.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A transport box for precision large products includes a box body with an internal cavity. A pair of fixed crossbeams are symmetrically arranged along the length of the cavity. Each fixed crossbeam is fitted with a movable support crossbeam via a sliding pair. The movable support crossbeam can move along the length of the fixed crossbeam to accommodate and support products of different sizes. A clamping device is provided on the movable support crossbeam for clamping and fixing the product onto it.

[0009] Furthermore, the movable support beams are configured such that, when supporting the product, the support points of the two movable support beams are located at one-quarter of the product's length.

[0010] Furthermore, the clamping device includes a clamping block and a locking element. The clamping block is placed on the upper surface of the product and connected to the movable support beam through the locking element to clamp the product.

[0011] Furthermore, a lid is hinged to one side of the top of the box.

[0012] Furthermore, the box body is provided with a latch for locking the lid after it is closed.

[0013] Furthermore, a handle is provided on the outer wall of the box.

[0014] Furthermore, a cushioning material is provided between the inner wall of the receiving cavity and the product.

[0015] The beneficial effects of this application are as follows:

[0016] (1) This application uses a movable support beam that can slide on a fixed beam to quickly and continuously adjust the distance between two support points according to the specific length of the product to be transported. This ensures that the support points are always accurately positioned at the optimal stress point of the product (e.g., one-quarter of the product length), fundamentally avoiding product bending and deformation caused by improper support point positioning, and ensuring that the product's key geometric tolerances such as flatness and straightness are well maintained after transportation.

[0017] (2) The transport box of this utility model can cover and support multiple products of different sizes and specifications, without the need to design and manufacture a special transport box for each product. This greatly reduces the number of special tooling, reduces procurement, warehousing and management costs, and realizes a standardized and modular transport solution.

[0018] (3) This application uses a clamping device on the movable support beam to firmly press the product onto the support surface, forming a stable rigid connection that effectively resists various vibrations and impacts during transportation. The entire clamping and adjustment process is simple and quick, effectively improving work efficiency. Attached Figure Description

[0019] Figure 1 A partial cross-sectional view of a transport box for a precision large product provided in an embodiment of this application;

[0020] Figure 2 A top view of a transport box for a precision large product provided in an embodiment of this application;

[0021] Figure 3 A partial cross-sectional view from another perspective of a transport box for a precision large product provided in an embodiment of this application;

[0022] Explanation of reference numerals in the attached figures:

[0023] Q. Product;

[0024] 1. Box body; 11. Receiving cavity; 2. Fixed crossbeam; 3. Movable support crossbeam; 4. Clamping device; 5. Hinge; 6. Box lid; 7. Lock; 8. Handle;

[0025] 41. Clamping block; 42. Locking component; Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," etc., are used only for the convenience of describing this application and for simplifying the description, and 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 this application. In particular, the understanding of the term "upper" following a noun in the claims should be understood as meaning that the entire inner and outer surfaces of the structure referred to by the noun conform to the definition of "upper."

[0028] The following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation methods, structures, features, and effects provided in this application.

[0029] like Figures 1 to 3 As shown, a transport box for a large precision product Q includes a box body 1, with a receiving cavity 11 formed inside the box body 11. A pair of fixed crossbeams 2 are symmetrically arranged along the length of the receiving cavity 11. Each fixed crossbeam 2 is equipped with a movable support crossbeam 3 via a sliding pair 9. The movable support crossbeam 3 can move along the length of the fixed crossbeam 2 to adapt to and support products Q of different sizes. A clamping device 4 is provided on the movable support crossbeam 3 for clamping and fixing the product Q to the movable support crossbeam 3.

[0030] In one embodiment, the movable support beams 3 are configured such that, when supporting product Q, the support points of the two movable support beams 3 are located at one-quarter of the length of product Q. Setting the support points of the simply supported beams at one-quarter of the length from both ends minimizes the maximum deflection (deformation) under its own weight load; it suppresses the bending deformation of product Q caused by its own weight, fundamentally protecting the flatness accuracy of product Q.

[0031] In one embodiment, the clamping device 4 includes a clamping block 41 and a locking member 42. The clamping block 41 is placed on the upper surface of the product Q and connected to the movable support beam 3 via the locking member 42 to clamp the product Q. By tightening the locking member 42, the clamping block 41 generates downward pressure, forming a clamping force with the movable support beam 3, thereby firmly fixing the product Q. This achieves rigid clamping of the product Q from above, preventing jumping or displacement during transportation, and features a simple structure and reliable locking.

[0032] In one embodiment, a lid 6 is hinged to the top side of the box 1 via a hinge 5. The lid 6 is opened and closed using the hinge 5, resulting in a simple, reliable, and easy-to-operate structure. This facilitates the loading and unloading of product Q while providing comprehensive protection for the transport box, preventing external impacts and contamination.

[0033] In one embodiment, the housing 1 is provided with a latch 7 for locking the lid 6 after it is closed. The mechanical latch 7 structure provides additional locking force when the lid 6 is closed, enhancing the overall sealing and security of the housing 1. This ensures that the lid 6 remains tightly closed during transportation, preventing accidental opening due to vibration and protecting the safety of the internal product Q.

[0034] In one embodiment, a handle 8 is provided on the outer side wall of the box 1. The sturdy handles 8 on both sides of the box 1 provide operators with clear and safe points of leverage. This greatly facilitates the handling and transportation of the box, saves manpower, and improves operational efficiency.

[0035] In one embodiment, a cushioning material is provided between the inner wall of the receiving cavity 11 and the product Q. The deformation of porous elastic materials such as foam or pearl cotton is used to dissipate impact energy and fill the gap to limit minor movements of the product Q. This effectively prevents scratches on the surface of the product Q and absorbs and cushions vibration and impact energy during transportation.

[0036] The working principle of this application is as follows:

[0037] The working principle of this utility model is as follows: by combining adjustable movable support with rigid clamping, an adaptive transportation and fixing scheme that conforms to the principle of optimal mechanics is provided for precision large products Q, thereby effectively resisting vibration and impact during transportation and preventing product Q from deforming due to its own weight and external load.

[0038] Its specific working process and principle are as follows:

[0039] First, the operator moves the two movable support beams 3 along the sliding joint on the fixed beam 2, according to the specific length of the product Q to be transported. The goal of this adjustment is to position the support points of the two movable support beams 3 at one-quarter of the length of the product Q (i.e., 1 / 4 of the total length of the product Q from each end). This position is an optimized choice based on the principles of material mechanics, which minimizes the bending deformation (deflection) of the product Q due to its own weight, fundamentally avoiding the loss of precision that occurs when the product Q is statically stored. After adjustment, the movable support beams 3 can be temporarily fixed by the locking mechanism of the sliding joint (such as locking screws) or by independent positioning components.

[0040] Place product Q smoothly onto the two pre-adjusted movable support beams 3, ensuring full contact between the support surfaces. Then, operate the clamping device 4: place the clamping block 41 on the upper surface of product Q and rotate the locking element 42 (such as a screw or bolt). As the locking element 42 screws downwards, it drives the clamping block 41 to firmly press product Q against the support surface of the movable support beams 3. This process achieves a three-point rigid fixation of product Q: the movable support beams 3 provide upward support force, the clamping block 41 provides downward pressure, and the locking element 42 provides locking force. This rigid connection ensures that product Q forms a unified whole with the bottom structure of the transport box, greatly suppressing relative displacement or jumping between product Q and the support structure during transportation, thereby protecting product Q from impact damage.

[0041] After product Q is secured, cushioning material (such as foam, pearl cotton, etc.) can be filled into the gap between the inner wall of the receiving cavity 11 and product Q to provide non-rigid constraint and protection for the sides and top of product Q, preventing surface scratches and absorbing some high-frequency vibrations. Finally, close the lid 6 and lock it with the latch 7 to enter the transportation state. The handles 8 on both sides of the box 1 provide convenience for handling.

[0042] This invention, through its unique sliding support beam structure, achieves precise positioning of the optimal support point for product Q, solving the problem of internal stress deformation caused by improper support; furthermore, the upper clamping device 4 solves the problem of dynamic stability of product Q during transportation. The combined effect of these two mechanisms ensures that the precision and integrity of the large precision product Q are maintained under harsh transportation conditions.

[0043] The embodiments described above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make several improvements and substitutions without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. A transport box for a precision large product, comprising a box body, wherein the box body has an internal receiving cavity, characterized in that: A pair of fixed crossbeams are symmetrically arranged along the length of the cavity; each fixed crossbeam is equipped with a movable support crossbeam via a sliding pair, the movable support crossbeam can move along the length of the fixed crossbeam to adapt to and support products of different sizes; the movable support crossbeam is provided with a clamping device for pressing and fixing the product on the movable support crossbeam.

2. The transport box for a precision large product according to claim 1, characterized in that: The movable support beams are configured such that, when supporting the product, the support points of the two movable support beams are located at one-quarter of the product's length.

3. The transport box for a large precision product according to claim 1, characterized in that: The clamping device includes a clamping block and a locking element. The clamping block is placed on the upper surface of the product and connected to the movable support beam through the locking element to clamp the product.

4. The transport box for a large precision product according to claim 3, characterized in that: The top side of the box is hinged with a lid.

5. The transport box for a precision large product according to claim 4, characterized in that: The box body is equipped with a latch for locking the lid after it is closed.

6. The transport box for a large precision product according to claim 1, characterized in that: A handle is provided on the outer wall of the box.

7. The transport box for a large precision product according to claim 1, characterized in that: A cushioning material is provided between the inner wall of the receiving cavity and the product.

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