Universal wooden box capable of being telescopically adjusted in size

By designing a retractable and adjustable wooden crate, and utilizing adjustment and securing devices, the problem of existing wooden crates being unable to adapt to items of different sizes has been solved. This enables flexible adjustment of storage space and securing of items, improving transportation and storage efficiency and reducing labor costs.

CN224159606UActive Publication Date: 2026-04-24SHANGHAI MIAOHANG WOODEN PROD FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI MIAOHANG WOODEN PROD FACTORY
Filing Date
2025-05-06
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing wooden crates cannot flexibly adjust their size when dealing with items of different specifications, resulting in low storage or transportation efficiency and increased labor costs.

Method used

An adjustable wooden crate was designed. The height of the crate and the contents are secured by an adjustment device and a fixing device. The adjustment device includes a slide rail, a rectangular bar, a pin, and a spring, while the fixing device includes a screw, a clamp, and a rubber pad.

Benefits of technology

The wooden crates allow for flexible adjustment of storage space, adapting to the storage needs of items of different sizes, improving transportation and storage efficiency, and reducing labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wooden boxes, in particular to a telescopic size-adjustable universal wooden box which comprises an inner box and an outer frame, and adjusting devices are arranged on two sides of the inner box. The adjusting device comprises two sliding rails, the two sliding rails are fixedly connected with the inner box, a plurality of positioning holes are formed in the inner walls of the sliding rails and evenly distributed in the inner walls of the sliding rails, the inner walls of the two sliding rails are slidably connected with two rectangular strips, the two rectangular strips are fixedly connected with the inner wall of the outer frame, and the two rectangular strips are fixedly connected with the inner wall of the outer frame. The lower surface of the outer frame is fixedly connected with a rectangular plate, and the rectangular plate is slidably connected with the sliding rail. According to the utility model, the problems that the storage or transportation work efficiency of the articles is reduced and the labor cost is indirectly increased due to the fact that the existing wooden box is used for storing various types of articles, the sizes and specifications of the articles are different, the existing wooden box is not suitable for storing all the articles and needs to be replaced with a larger or smaller wooden box for storing the articles are solved.
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Description

Technical Field

[0001] This utility model relates to the field of wooden box technology, and in particular to a universal wooden box with extendable and adjustable size. Background Technology

[0002] Wooden crates are a common packaging or storage tool, widely used in logistics transportation, industrial storage, and home organization. Their structural design focuses on practicality, load-bearing capacity, and durability, and their main components include the base plate, side plates, and base posts.

[0003] In the present technology, wooden crates are commonly used in the fields of goods transportation or storage, and are often used to store various different items. However, existing wooden crates are not suitable for storing all types of items with different sizes and specifications, and it is necessary to replace them with larger or smaller wooden crates. This leads to a decrease in the efficiency of goods storage or transportation and indirectly increases labor costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing wooden crates, which are insufficient for storing various types and sizes of items, necessitating the replacement with larger or smaller crates. This leads to reduced efficiency in storage and transportation, and indirectly increases labor costs. Therefore, this invention proposes a universal wooden crate with adjustable dimensions.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a universal wooden box with adjustable dimensions, comprising an inner box and an outer frame, wherein adjustment devices are provided on both sides of the inner box. Each adjustment device includes two slide rails, both of which are fixedly connected to the inner box. The inner walls of the slide rails have several positioning holes evenly distributed on their inner walls. Two rectangular strips are slidably connected to the inner walls of the two slide rails, and both rectangular strips are fixedly connected to the inner walls of the outer frame. A rectangular plate is fixedly connected to the lower surface of the outer frame, and the rectangular plate is slidably connected to the slide rails. Two rows of insertion holes are provided on both sides of the outer frame, each row corresponding to a positioning hole. The insertion holes completely penetrate the rectangular strips. Two pins are slidably connected to the inner walls of the insertion holes, and pull plates are fixedly connected to the arc surfaces of the two pins. Two limiting rods are fixedly connected to one side of the outer frame, and the arc surfaces of the two limiting rods are slidably connected to the pull plates.

[0006] The aforementioned components achieve the following effect: the outer frame can slide upwards along the slide rail. When it slides to the desired height, the pin can be inserted vertically through the rectangular strip into the positioning hole to fix the outer frame. This achieves the effect of adjusting the height of the wooden box and increasing the storage space.

[0007] Preferably, the arc surface of the pin is fitted with a spring, and the spring is fixedly connected to the outer frame and the pull plate respectively.

[0008] The effect achieved by the above components is as follows: by pulling the two pins simultaneously using the pull plate, the springs extend due to the pulling and generate elastic force. When the pull plate is released, the spring force can cause the pins to spring back and insert into the holes.

[0009] Preferably, two rubber pads are fixedly connected to both sides of the slide rail, and the two rubber pads are slidably connected to the rectangular strip.

[0010] The effect achieved by the above components is that during the transportation of wooden crates, the slide rails and rectangular bars may become loose due to bumps and vibrations, and the rubber pads play a buffering role.

[0011] Preferably, a handle is fixedly connected to one side of the pull plate, and the handle has a "U" shaped cross-section.

[0012] The effect achieved by the above components is to make operation more convenient and effortless when pulling the pull plate with the handle and lifting the outer frame upward.

[0013] Preferably, the inner box has fixing devices on both sides, each fixing device including a circular hole on both sides of the inner box. A screw is rotatably connected to the inner wall of the circular hole, a nut is fixedly connected to one end of the screw, and a clamp is threadedly connected to the end of the screw away from the nut. The clamp is slidably connected to the inner wall of the inner box. Two annular washers are fixedly connected to both sides of the inner box, and both annular washers are located inside the circular hole.

[0014] The aforementioned components achieve the following effect: when the wooden crate is being transported or when storing small items, vibrations during transportation may cause damage to the items. The two screws drive the clamping plates to hold and fix the items inside the crate, while the circular gaskets reduce the wear between the screws and the crate body.

[0015] Preferably, a plurality of anti-slip pads are fixedly connected to one side of each of the two clamping plates, and the plurality of anti-slip pads are evenly distributed on the surface of the clamping plates.

[0016] The effect achieved by the above components is to increase the friction between the clamping plate and the clamped item by using the anti-slip pad, thus making the clamping effect better.

[0017] Preferably, two handles are fixedly connected to the side of the nut, and the ends of the two handles away from the nut are semi-circular.

[0018] The above-mentioned components achieve the following effects: the screw can be rotated by the handle, making the operation simpler and more convenient; one end of the handle is semi-circular, which helps to prevent wear.

[0019] In summary, the beneficial effects of this utility model are as follows:

[0020] In this utility model, an adjustment device is designed to address situations where the current storage space of a wooden box is insufficient to store all items when using it for storage. This adjustment device increases the storage space of the wooden box by adjusting its height to accommodate more items. The specific operating steps are as follows: When adjusting the height of the wooden box, four slide rails are fixedly connected to the outer side of the inner box. These four slide rails are distributed on both sides of the inner box, and each slide rail has several positioning holes on its inner wall for positioning after sliding. The slide rails are connected to the outer frame via rectangular strips, which slide together with the slide rails. Additionally, the surface of the outer frame also has insertion holes corresponding to the positioning holes. Each insertion hole completely penetrates the rectangular strip, and a pin is inserted into the positioning hole along the rectangular strip through the insertion hole to fix the outer frame. Before adjusting the height of the outer frame, the operator needs to manually pull the handle. Since the handle is fixedly connected to the pull plate, pulling the handle outward will cause the pull plate to move outward as well. The pull plate is fixedly connected to the two pins. As the pull plate moves outward, it will also slowly pull the pins out of the positioning holes along the rectangular strip. At this time, the two limit rods fixedly connected to the outer frame are slidably connected to the pull plate. The length of the limit rods is sufficient to allow the pull plate to slide a distance on its arc surface to ensure that the pins can be pulled out of the positioning holes, but not out of the insertion holes. Therefore, when the pins are pulled out of the positioning holes, the operator can use the handle to slide the outer frame upward along the slide rail. When the slide reaches the appropriate height, slowly release the handle. Since the spring is fixedly connected to the outer frame and the pull plate, the spring will be compressed and generate elastic force as the pin is pulled outward. When the handle is slowly released, the pull plate and the pin will be pulled back along the original path due to the spring force and inserted into the positioning hole. This completes the height adjustment of the outer frame and increases the storage space of the wooden box.

[0021] In this invention, a fixing device is provided to prevent damage when wooden crates are used to store items of varying sizes. If the items are much smaller than the inner crate's storage space, they may break or be damaged during transport due to bumps or vibrations. The main operating steps are as follows: When storing smaller items, first place them into the inner crate. The inner crate has round holes on both sides, and the inner walls of these holes are rotatably connected to two screws. Nuts are fixedly connected to the ends of the two screws that are furthest from each other. The other ends of both screws are fixedly connected to clamps. When a small item is placed, the screw is rotated. The rotation of the screw causes the two clamps to slide slowly towards each other on the inner wall of the box until the item is clamped and fixed. Then the screw is stopped, thus achieving the effect of fixing the item. The handle fixedly connected to the side of the nut makes it easier and more convenient for the operator to rotate the screw. Several anti-slip pads fixedly connected to the side of the clamps increase the friction between the two clamps and the item, making the fixing effect better. In addition, the circular washer reduces the wear between the screw and the circular hole when the screw rotates. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the adjusting device of this utility model;

[0024] Figure 3 This is a partial structural schematic diagram of the adjusting device of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the fixing device of this utility model;

[0026] Legend: 1. Inner box; 2. Outer frame; 3. Adjustment device; 301. Slide rail; 302. Positioning hole; 303. Rectangular bar; 304. Rectangular plate; 305. Rubber pad; 306. Insertion hole; 307. Pin; 308. Pull plate; 309. Limiting rod; 310. Spring; 311. Handle; 4. Fixing device; 41. Round hole; 42. Screw; 43. Nut; 44. Circular washer; 45. Clamping plate; 46. Anti-slip pad. Detailed Implementation

[0027] Reference Figure 1 As shown, this utility model provides a technical solution: a universal wooden box with retractable and adjustable size, including an inner box 1 and an outer frame 2. Adjustment devices 3 are provided on both sides of the inner box 1, and fixing devices 4 are provided on both sides of the inner box 1.

[0028] The specific settings and functions of the adjustment device 3 and the fixing device 4 will be explained in detail below.

[0029] Reference Figure 2 and Figure 3 As shown, in this embodiment: the adjusting device 3 includes two slide rails 301, both of which are fixedly connected to the inner box 1. The inner wall of each slide rail 301 has several positioning holes 302 evenly distributed on its inner wall. Two rectangular strips 303 are slidably connected to the inner walls of the two slide rails 301, and both rectangular strips 303 are fixedly connected to the inner wall of the outer frame 2. A rectangular plate 304 is fixedly connected to the lower surface of the outer frame 2. The outer frame 2 is slidably connected to the slide rail 301. Two rows of insertion holes 306 are provided on both sides of the outer frame 2, each corresponding to a positioning hole 302. The insertion holes 306 completely penetrate the rectangular strip 303. Two pins 307 are slidably connected to the inner wall of the insertion holes 306. A pull plate 308 is fixedly connected to the arc surface of the two pins 307. Two limiting rods 309 are fixedly connected to one side of the outer frame 2, and their arc surfaces are slidably connected to the pull plate 308. The effect achieved by these components is that the outer frame 2 can slide upwards along the slide rail 301. When it reaches the desired height, the pins 307 can be inserted vertically through the insertion holes 306, passing through the rectangular strip 303 and into the positioning holes 302, thus fixing the outer frame 2. This achieves the effect of adjusting the height of the wooden box and increasing storage space. A spring 310 is fitted onto the arc surface of the pin 307, and the spring 310 is fixedly connected to both the outer frame 2 and the pull plate 308. Pulling the pull plate 308 simultaneously moves both pins 307. During this pulling process, the spring 310 extends due to the pulling force, generating elasticity. When the pull plate 308 is released, the elasticity of the spring 310 causes the pins 307 to spring back and insert into the holes. Two rubber pads 305 are fixedly connected to both sides of the slide rail 301, and the two rubber pads 305 are slidably connected to the rectangular bar 303. During the transportation of the wooden box, the slide rail 301 and the rectangular bar 303 may become loose due to bumps and vibrations, and the rubber pads 305 act as a buffer. A handle 311 is fixedly connected to one side of the pull plate 308. The handle 311 has a "U" shaped cross-section. Using the handle 311 to pull the pull plate 308 and lift the outer frame 2 makes operation more convenient and effortless.

[0030] Reference Figure 4As shown in this embodiment: the fixing device 4 includes a circular hole 41, which is opened on both sides of the inner box 1. A screw 42 is rotatably connected to the inner wall of the circular hole 41. A nut 43 is fixedly connected to one end of the screw 42, and a clamping plate 45 is threadedly connected to the other end of the screw 42 away from the nut 43. The clamping plate 45 is slidably connected to the inner wall of the inner box 1. Two circular ring washers 44 are fixedly connected to both sides of the inner box 1, and both circular ring washers 44 are located inside the circular hole 41. When the wooden box is transported or when storing small items, vibrations during transportation may cause damage to the items. The two screws 42 drive the clamping plate 45 to clamp and fix the items inside the box. The circular ring washers 44 reduce the wear between the screws 42 and the box body. Several anti-slip pads 46 are fixedly connected to one side of each of the two clamping plates 45, and the anti-slip pads 46 are evenly distributed on the surface of the clamping plate 45. The anti-slip pads 46 increase the friction between the clamping plate 45 and the clamped items, making the clamping effect better. Two handles are fixedly connected to the side of the nut 43, with the ends of the handles furthest from the nut 43 being semi-circular. The handles are used to rotate the screw 42, making operation simpler and more convenient. The semi-circular ends of the handles also help prevent wear.

[0031] Working principle: In this utility model, by setting an adjustment device 3, when using wooden boxes for storage, it is often encountered that the current storage space of some wooden boxes is insufficient to store the items. Therefore, the adjustment device 3 is designed to increase the storage space of the wooden box by adjusting its height to accommodate more items. The specific operation steps are as follows: When it is necessary to adjust the height of the wooden box, four slide rails 301 are fixedly connected to the outside of the inner box 1. The four slide rails 301 are distributed on both sides of the inner box 1. Each slide rail 301 has several positioning holes 302 on its inner wall for positioning after sliding. The slide rails 301 are connected to the outer frame 2 by rectangular bars 303. The rectangular bars 303 are slidably connected to the slide rails 301. In addition, the surface of the outer frame 2 also has insertion holes 306 that correspond one-to-one with the positioning holes 302. Each insertion hole 306 completely penetrates the rectangular bar 303. The pin 307 is inserted into the positioning hole 302 through the insertion hole 306 along the rectangular bar 303 to fix the outer frame 2. Before adjusting the height of the outer frame 2, the operator needs to manually pull the handle 311. Since the handle 311 is fixedly connected to the pull plate 308, pulling the handle 311 outward will cause the pull plate 308 to move outward together. The pull plate 308 is fixedly connected to the two pins 307. When the pull plate 308 moves outward, it will also slowly pull the pins 307 out of the positioning hole 302 along the rectangular strip 303. At this time, the two limiting rods 309, which are fixedly connected to the outer frame 2, are slidably connected to the pull plate 308. The length of the limiting rods 309 is sufficient to allow the pull plate 308 to slide a distance on its arc surface to ensure that the pins 307 can be pulled out of the positioning hole 302, but not from the insertion hole 306. Therefore, when the pins 307 are pulled out of the positioning hole 302, the operator can use the handle 311 to slide the outer frame 2 upward along the slide rail 301. When the slide reaches the appropriate height, slowly release the handle 311. Since the spring 310 is fixedly connected to the outer frame 2 and the pull plate 308, the spring 310 will be compressed and generate elastic force as the pin 307 is pulled outward. When the handle 311 is slowly released, the pull plate 308 and the pin 307 will be pulled back along the original path due to the elastic force of the spring 310 and inserted into the positioning hole 302. This completes the height adjustment of the outer frame 2, increasing the storage space of the wooden box.

[0032] In this utility model, by setting a fixing device 4, when it is necessary to use a wooden box to store items of varying sizes, and when the items to be stored are much smaller than the storage space of the inner box 1, the items may break or be damaged during transportation due to bumps or vibrations. To prevent this from happening, the fixing device 4 is designed. Its main operating steps are as follows: When it is necessary to store smaller items, the items must first be placed into the inner box 1. Since there are round holes 41 on both sides of the inner box 1, and the inner walls of the round holes 41 are rotatably connected to two screws 42, the ends of the two screws 42 that are far apart from each other are fixedly connected to nuts 43. The other end of each clamp is fixedly connected to a clamping plate 45. When a small item is placed, the screw 42 is rotated. The rotation of the screw 42 causes the two clamping plates 45 to slowly slide towards each other on the inner wall of the inner box 1 until the item is clamped and fixed. Then the screw 42 is stopped, thus achieving the effect of fixing the item. The handle fixedly connected to the side of the nut 43 makes it easier and more convenient for the operator to rotate the screw 42. Several anti-slip pads 46 fixedly connected to the side of the clamping plate 45 increase the friction between the two clamping plates 45 and the item, making the fixing effect better. In addition, the circular washer 44 can reduce the wear between the screw 42 and the circular hole 41 when the screw 42 rotates.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection within a component, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A universal wooden box with adjustable and retractable dimensions, characterized in that: The system includes an inner box (1) and an outer frame (2). Adjustment devices (3) are provided on both sides of the inner box (1). Each adjustment device (3) includes two slide rails (301), both of which are fixedly connected to the inner box (1). Several positioning holes (302) are evenly distributed on the inner wall of each slide rail (301). Two rectangular strips (303) are slidably connected to the inner walls of the two slide rails (301), and both rectangular strips (303) are fixedly connected to the inner wall of the outer frame (2). A rectangular plate (304) is fixedly connected to the lower surface of the outer frame (2). The rectangular plate (304) is connected to... The slide rail (301) is slidably connected. Two rows of insertion holes (306) are provided on both sides of the outer frame (2). The two rows of insertion holes (306) correspond one-to-one with the positioning holes (302). The insertion holes (306) completely penetrate the rectangular strip (303). Two pins (307) are slidably connected to the inner wall of the insertion hole (306). Pull plates (308) are fixedly connected to the arc surfaces of the two pins (307). Two limiting rods (309) are fixedly connected to one side of the outer frame (2). The arc surfaces of the two limiting rods (309) are slidably connected to the pull plates (308).

2. The universal wooden box with adjustable dimensions according to claim 1, characterized in that: The arc surface of the pin (307) is fitted with a spring (310), and the spring (310) is fixedly connected to the outer frame (2) and the pull plate (308) respectively.

3. The universal wooden box with adjustable dimensions according to claim 1, characterized in that: Two rubber pads (305) are fixedly connected to both sides of the slide rail (301), and the two rubber pads (305) are slidably connected to the rectangular bar (303).

4. A universal wooden box with adjustable dimensions according to claim 1, characterized in that: A handle (311) is fixedly connected to one side of the pull plate (308), and the cross-section of the handle (311) is "U" shaped.

5. A universal wooden box with adjustable dimensions according to claim 1, characterized in that: The inner box (1) is provided with fixing devices (4) on both sides. The fixing devices (4) include round holes (41). The round holes (41) are opened on both sides of the inner box (1). The inner wall of the round holes (41) is rotatably connected to a screw (42). One end of the screw (42) is fixedly connected to a nut (43). The end of the screw (42) away from the nut (43) is threadedly connected to a clamp (45). The clamp (45) is slidably connected to the inner wall of the inner box (1). Two circular annular washers (44) are fixedly connected to both sides of the inner box (1). Both circular annular washers (44) are located inside the round holes (41).

6. A universal wooden box with adjustable dimensions according to claim 5, characterized in that: Several anti-slip pads (46) are fixedly connected to one side of each of the two clamps (45), and the several anti-slip pads (46) are evenly distributed on the surface of the clamps (45).

7. A universal wooden box with adjustable dimensions according to claim 5, characterized in that: Two handles are fixedly connected to the side of the nut (43), and the ends of the two handles away from the nut (43) are semi-circular.