Combined bid invitation data classification box

Abstract

The utility model relates to the technical field of combined classification boxes, and discloses a combined bid invitation data classification box which comprises a bottom plate and a top cover, side plates are rotatably connected to the left end and the right end of the adjacent side of the bottom plate and the top cover, rotating shafts are rotatably connected between the adjacent side plates, fixing blocks are fixedly connected to the left side and the right side of the top of the bottom plate, and the fixing blocks are fixedly connected to the left side and the right side of the top of the bottom plate. The front ends of the two fixed blocks are rotationally connected with threaded rods, the rear sides of the outer walls of the two threaded rods are in threaded connection with moving blocks, and the interiors of the two moving blocks are rotationally connected with connecting rods. According to the folding box, when the box needs to be folded, carried and stored in an empty state, the supporting rods are pulled to rotate along with movement of the connecting rods, so that the supporting rods lose the supporting capacity to the side plates, then the side plates on the two sides can be folded, the opening and closing plates are opened through the handles to be stored into the inner side of the top cover, and therefore the folding effect of the box is achieved; and the box can be folded when not in use, so that the occupied area is saved.

Description

Technical Field

[0001] This utility model relates to the field of modular sorting box technology, and in particular to modular bidding document sorting box. Background Technology

[0002] Bidding documents are a series of documents and materials involved in the bidding process. They are used to standardize bidding activities, clarify bidding requirements, and record the bidding process and results. There may also be supplementary documents, Q&A minutes, and meeting records, all of which fall under the category of bidding documents. They play an important role in the smooth progress of bidding activities and the subsequent implementation of projects.

[0003] With the standardization and increasing complexity of the bidding and procurement industry, as well as the advancement of digital transformation, modern bidding involves multiple stages and a wide variety of document types. Traditional folders or ordinary filing cabinets are cluttered with documents, making it time-consuming and prone to errors when searching for documents. Therefore, bidding document classification boxes are needed to solve the problem of cluttered documents and achieve refined classification.

[0004] Currently available bidding document boxes typically consist of a fixed box body, a hinged door, and fixed shelves. The hinged door opens the fixed box body, and documents are then placed on the fixed shelves for storage. Because the internal shelves are fixed, it's difficult to categorize documents, increasing the difficulty of finding and retrieving them. To address this issue, existing technology adds drawer-style storage compartments to increase internal categorization space, allowing documents to be categorized according to quantity and type. However, in practical use, due to the large size of the box, it still occupies the same space even when empty, resulting in significant space consumption and failing to meet user needs. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a combined bidding document classification box, which aims to improve the problem of space occupation when the box is unused in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a combined bidding document classification box, including a base plate and a top cover. Side plates are rotatably connected to the left and right ends of adjacent sides of the base plate and top cover. Rotating shafts are rotatably connected between adjacent side plates. Fixing blocks are fixedly connected to the left and right sides of the top of the base plate. Threaded rods are rotatably connected to the front ends of two fixing blocks. Moving blocks are threadedly connected to the rear outer walls of two threaded rods. Connecting rods are rotatably connected inside the two moving blocks. Connecting blocks are fixedly connected to the rear ends of the left and right sides of the top of the base plate. Support rods are rotatably connected inside the two connecting blocks. Adjacent sides of two connecting rods are rotatably connected to corresponding support rods. A slide rail is fixedly connected to the bottom of the top cover. Sliding blocks are slidably connected to the front and rear ends of the outer sides of the slide rail. Connecting plates are fixedly connected to the bottoms of two sliding blocks. Opening and closing plates are rotatably connected to the opposite sides of the two connecting plates. A connecting mechanism is provided inside the base plate, which facilitates the combination and connection of other boxes.

[0007] As a further description of the above technical solution:

[0008] The connecting mechanism includes a cylindrical shaft rotatably connected to the front center of a base plate. A cavity is formed inside the base plate, through which the cylindrical shaft passes. A rotating rod is slidably connected inside the cylindrical shaft. A slot is formed at the top front side of both the cylindrical shaft and the rotating rod. A movable handle is slidably connected inside the slot. Gears are fixedly connected to the rear ends of both the cylindrical shaft and the rotating rod. Racks are slidably connected to the front and rear sides of the top of the cavity. Two racks mesh with corresponding gears. A locking block is fixedly connected to the opposite ends of the two racks, passing through the cavity. A movable block is slidably connected to the opposite sides of the two racks. Connecting grooves are formed on both the left and right sides of the base plate. Springs are fixedly connected to the front and rear sides of the interior of two connecting grooves. Wedge blocks are fixedly connected to adjacent sides of multiple springs.

[0009] As a further description of the above technical solution:

[0010] The bottom plate has sliding grooves on both the top left and right sides, and the bottoms of the two moving blocks are slidably connected inside the sliding grooves.

[0011] As a further description of the above technical solution:

[0012] The top of the top cover has grooves on both the left and right sides, and the bottom of the bottom plate has protrusions fixedly connected to both the left and right sides.

[0013] As a further description of the above technical solution:

[0014] Handles are fixedly connected to the lower middle part of the opposite side of the two opening and closing plates, and protective sleeves are fixedly connected to the outer side of the two handles.

[0015] As a further description of the above technical solution:

[0016] The bottom left and right sides of the top cover are fixedly connected to limit rails, and the tops of the two support rods are slidably connected inside the limit rails.

[0017] As a further description of the above technical solution:

[0018] The front ends of both threaded rods penetrate the base plate and are fixedly connected to knobs. The outer diameter of both opening and closing plates matches the inner diameter of the top cover.

[0019] As a further description of the above technical solution:

[0020] Each of the two opening and closing plates is fixedly connected to a fixing plate on the right side of the opposite end of the base plate, and a door lock is provided inside each of the fixing plates.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when the box needs to be folded for portable storage in an empty state, the screw rod is rotated by rotating the knobs on both sides, which causes the moving block to move the connecting rod forward. As the connecting rod moves, it pulls the support rod to rotate, thereby causing the support rod to lose its ability to support the side panels. Then the side panels on both sides can be folded. The opening and closing plates can be opened by the handle and stored inside the top cover, thus achieving the folding effect of the box. This allows the box to be folded when empty, saving space and meeting the needs of users.

[0023] 2. In this utility model, when it is necessary to combine and fix the boxes, the movable handle can be moved back and forth and then rotated to flexibly select the fixing of the left and right boxes. When it is necessary to fix it to the right box, the movable handle is pulled forward to engage with the slot and then rotated to drive the gear to rotate, thereby causing the rear rack to move to the right, so that the locking block enters the corresponding connecting groove of the right box, and the wedge block in the connecting groove can lock the rack, thereby realizing the combination and fixing of the boxes. Attached Figure Description

[0024] Figure 1 This is a perspective view of the combined bidding document classification box proposed in this utility model;

[0025] Figure 2 This is a partial structural schematic diagram of the combined bidding document classification box proposed in this utility model;

[0026] Figure 3 This is a partial structural cross-sectional view of the combined bidding document classification box proposed in this utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0028] Figure 5 This is a partial structural breakdown diagram of the combined bidding document classification box proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Connecting mechanism; 201. Cylindrical shaft; 202. Cavity; 203. Rotating rod; 204. Gear; 205. Rack; 206. Slot; 207. Movable handle; 208. Connecting groove; 209. Spring; 210. Wedge block; 211. Movable block; 212. Locking block; 3. Top cover; 4. Side plate; 5. Rotating shaft; 6. Fixed block; 7. Threaded rod; 8. Moving block; 9. Connecting rod; 10. Connecting block; 11. Support rod; 12. Slider; 13. Slide rail; 14. Connecting plate; 15. Opening and closing plate; 16. Limiting rail; 17. Knob; 18. Slide groove; 19. Groove; 20. Protrusion; 21. Handle; 22. Protective sleeve; 23. Fixing plate; 24. Door lock. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 and Figure 2This utility model provides an embodiment of a combined bidding document classification box, comprising a base plate 1 and a top cover 3. Side plates 4 are rotatably connected to the left and right ends of adjacent sides of the base plate 1 and the top cover 3. Rotating shafts 5 are rotatably connected between adjacent side plates 4, allowing the side plates 4 to be folded via the rotating shafts 5. Fixing blocks 6 are fixedly connected to the left and right sides of the top of the base plate 1. Threaded rods 7 are rotatably connected to the front ends of the two fixing blocks 6. Moving blocks 8 are threadedly connected to the rear outer walls of the two threaded rods 7. Rotating the threaded rods 7 causes the moving blocks 8 to move back and forth. Connecting rods 9 are rotatably connected inside the two moving blocks 8, causing the moving blocks 8 to move together with the connecting rods 9. Connecting blocks 10 are fixedly connected to the rear ends of the left and right sides of the top of the base plate 1. Both connecting blocks 10 are rotatably connected to support rods 11 inside. The adjacent sides of the two connecting rods 9 are rotatably connected to the corresponding support rods 11. When the connecting rods 9 move, they pull the support rods 11 to rotate. The bottom of the top cover 3 is fixedly connected to a slide rail 13. The front and rear ends of the slide rail 13 are slidably connected to sliders 12. The sliders 12 can slide along the slide rail 13. The bottom of the two sliders 12 is fixedly connected to a connecting plate 14. The opposite sides of the two connecting plates 14 are rotatably connected to opening and closing plates 15. The front ends of the two threaded rods 7 pass through the bottom plate 1 and are fixedly connected to knobs 17. The outer diameter of the two opening and closing plates 15 matches the inner diameter of the top cover 3. The opening and closing plates 15 can be stored inside the top cover 3.

[0033] Specifically, when the document box needs to be folded to save space, rotating the knobs 17 on both sides can drive the threaded rod 7 to rotate. The rotation of the threaded rod 7 drives the moving block 8 to move forward. The movement of the moving block 8 will pull the connecting rod 9 to move synchronously. The movement of the connecting rod 9 will pull the support rod 11, causing one end to rotate, thereby realizing the folding of the support rod 11 and the connecting rod 9. At the same time, the side plate 4 loses its support force and folds through the pivot 5. Then, the opening and closing plates 15 on both sides are lifted, and the corresponding connecting plates 14 and sliders 12 are pushed to move along the slide rail 13. Finally, the opening and closing plates 15 are stored inside the top cover 3, so that the entire document box is in a folded state, thereby effectively saving space.

[0034] Reference Figure 1 , Figure 3 and Figure 5The connecting mechanism 2 includes a cylindrical shaft 201, which is rotatably connected to the front center of the base plate 1. A cavity 202 is provided inside the base plate 1. The cylindrical shaft 201 passes through the base plate 1, and a rotating rod 203 is slidably connected inside the cylindrical shaft 201. A slot 206 is provided on the top front side of both the cylindrical shaft 201 and the rotating rod 203. A movable handle 207 is slidably connected inside the slot 206. The movable handle 207 can control the rotation of the cylindrical shaft 201 and the rotating rod 203 respectively by moving back and forth and engaging with the slot 206. Gears 204 are fixedly connected to the rear ends of both the cylindrical shaft 201 and the rotating rod 203. Racks 205 are slidably connected to the front and rear sides of the top of the cavity 202. 5 are respectively engaged with the corresponding gears 204. When the gears 204 rotate, they drive the racks 205 to move linearly. The ends of the two racks 205 that are far apart pass through the cavity 202 and are fixedly connected with the locking blocks 212. The sides of the two racks 205 that are far apart are slidably connected with the movable blocks 211. The left and right sides of the bottom plate 1 are provided with connecting grooves 208. The connecting grooves 208 are used for connecting and combining with other boxes. The front and rear sides of the interior of the two connecting grooves 208 are fixedly connected with springs 209. The adjacent sides of the multiple springs 209 are fixedly connected with wedge blocks 210. The top left and right sides of the top of the top cover 3 are provided with grooves 19. The bottom left and right sides of the bottom of the bottom plate 1 are fixedly connected with protrusions 20.

[0035] Specifically, when it is necessary to combine the device with the data boxes on both sides, the movable handle 207 is moved back and forth to engage with the slot 206 on the cylinder shaft 201 or the rotating rod 203. Rotating the movable handle 207 will drive the cylinder shaft 201 or the rotating rod 203 to rotate, which in turn drives the corresponding gear 204 to rotate. The rotation of the gear 204 will cause the rack 205 to move along the base plate 1 and extend, so that the locking block 212 can be inserted into the connecting slot 208 of the corresponding box. The locking block 212 pushes open the wedge block 210 in the connecting slot 208, and at the same time the spring 209 is compressed. After the locking block 212 passes through the wedge block 210, the rebound force of the spring 209 will cause the wedge block 210 to return to its original position. This locks the locking block 212, ensuring a secure connection between the two document boxes. To release the lock, rotate the movable handle 207 in the same direction again, causing the rack 205 to extend further and the movable block 211 to be locked by the wedge block 210. Then, rotate the movable handle 207 in the opposite direction, causing the rack 205 to retract inward. The wedge block 210 will slide along the inclined surface of the movable block 211 and the locking block 212. As the spring 209 contracts and releases, the locking block 212 disengages from the locking wedge block 210, thus unlocking the two document boxes. The upper and lower document boxes can also be combined and fixed by sliding the groove 19 on the top of the top cover 3 and the protrusion 20 on the bottom of the base plate 1.

[0036] Reference Figure 1 and Figure 2The top left and right sides of the base plate 1 are provided with sliding grooves 18. The bottoms of the two moving blocks 8 are slidably connected inside the sliding grooves 18. The sliding grooves 18 can guide the moving blocks 8. The lower middle part of the opposite side of the two opening and closing plates 15 is fixedly connected with handles 21. The handles 21 can easily lift the opening and closing plates 15. The outer sides of the two handles 21 are fixedly connected with protective sleeves 22.

[0037] Specifically, the sliding block 8 slides inside the slide groove 18 to ensure that it will not deviate during sliding. When the opening and closing plate 15 needs to be folded and stored, the handle 21 can make it easy for the staff to lift the opening and closing plate 15. The protective sleeve 22 can prevent the hand from slipping when pulling the handle 21.

[0038] Reference Figure 1 and Figure 2 The bottom left and right sides of the top cover 3 are fixedly connected to the limiting rails 16. The tops of the two support rods 11 are slidably connected inside the limiting rails 16, which can limit the support rods 11. The two opening and closing plates 15 are fixedly connected to the right side of the opposite end of the bottom plate 1 with fixing pieces 23. The interior of the multiple fixing pieces 23 is equipped with door locks 24.

[0039] Specifically, the limiting rail 16 can maintain stability and better sliding effect when the support rod 11 rotates, while the fixing plate 23 can facilitate the door lock 24 to connect and lock the opening and closing plate 15 to the base plate 1, preventing unauthorized personnel from opening the opening and closing plate 15 and looking through the documents inside the box.

[0040] Working principle: When the document box is empty and needs to be folded to save space, the screw rod 7 is rotated by rotating the knobs 17 on both sides. When the screw rod 7 rotates, the moving block 8 can move forward. The moving block 8 can move the connecting rod 9 together. When the connecting rod 9 moves, it pulls the support rod 11 to move together. Since one end of the support rod 11 is fixed, it will rotate when it is pulled. This causes the support rod 11 and the connecting rod 9 to fold while the side plate 4 loses its support force. The side plate 4 can then be rotated and folded through the pivot 5. At this time, the opening and closing plates 15 on both sides are lifted up, so that the opening and closing plates 15 on both sides push the corresponding connecting plates 14 and sliders 12 to move along the slide rail 13 and be stored inside the top cover 3, so that the entire document box is in a folded state, saving space.

[0041] Furthermore, when it needs to be combined with the document boxes on both sides, by moving the movable handle 207 back and forth, the movable handle 207 engages with the slot 206 on the cylindrical shaft 201 or rotating rod 203. By rotating the movable handle 207, the cylindrical shaft 201 or rotating rod 203 is rotated, thereby driving the corresponding gear 204 to rotate. When the gear 204 rotates, it drives the rack 205 to move and extend out of the base plate 1, allowing the locking block 212 to enter the connecting slot 208 of the corresponding box. Subsequently, the locking block 212 pushes open the wedge blocks 210 on both sides of the connecting slot 208, and at the same time, the spring 209 is compressed. After the locking block 212 passes the wedge blocks 210, The wedge block 210 rebounds under the action of the spring 209, thereby fixing the locking block 212 and securing the two document boxes. When it is necessary to release the fixation, the movable handle 207 is rotated in the same direction again, causing the rack 205 to extend outward and the movable block 211 to be locked by the wedge block 210. Then, the movable handle 207 is rotated in the opposite direction, causing the rack 205 to retract inward. Subsequently, the wedge block 210 will slide along the inclined curved surface of the movable block 211 and the locking block 212. With the contraction and release of the spring 209, the locking block 212 is released from the fixation of the wedge block 210, thereby releasing the fixation of the two document boxes.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A modular bidding document sorting box, comprising a base plate (1) and a top cover (3), characterized in that: The bottom plate (1) and the top cover (3) are rotatably connected to the left and right ends of adjacent sides. A rotating shaft (5) is rotatably connected between adjacent side plates (4). A fixing block (6) is fixedly connected to the left and right sides of the top of the bottom plate (1). A threaded rod (7) is rotatably connected to the front end of each of the two fixing blocks (6). A moving block (8) is threadedly connected to the rear side of the outer wall of each of the two threaded rods (7). A connecting rod (9) is rotatably connected to the interior of each of the two moving blocks (8). A connecting block (10) is fixedly connected to the rear end of the left and right sides of the top of the bottom plate (1). The two connecting blocks (10) are rotatably connected to the rear end of the left and right sides of the top of the bottom plate (1). The interior of the 10) is rotatably connected to a support rod (11). The adjacent sides of the two connecting rods (9) are rotatably connected to the corresponding support rod (11). The bottom of the top cover (3) is fixedly connected to a slide rail (13). The front and rear ends of the slide rail (13) are slidably connected to sliders (12). The bottom of the two sliders (12) is fixedly connected to a connecting plate (14). The opposite sides of the two connecting plates (14) are rotatably connected to an opening and closing plate (15). The interior of the bottom plate (1) is provided with a connecting mechanism (2). The connecting mechanism (2) is convenient for combining and connecting other boxes.

2. The combined tender document classification box according to claim 1, characterized in that: The connecting mechanism (2) includes a cylindrical shaft (201), which is rotatably connected to the front middle of the base plate (1). The base plate (1) has a cavity (202) inside. The cylindrical shaft (201) passes through the base plate (1). A rotating rod (203) is slidably connected inside the cylindrical shaft (201). The top front sides of both the cylindrical shaft (201) and the rotating rod (203) have slots (206). A movable handle (207) is slidably connected inside the slots (206). Gears (204) are fixedly connected to the rear ends of both the cylindrical shaft (201) and the rotating rod (203). The cavity (202) The top front and rear sides of the 02) are slidably connected with racks (205), and the two racks (205) are respectively meshed with the corresponding gears (204). The two racks (205) are respectively connected to the cavity (202) through the opposite ends and are fixedly connected with the locking block (212). The two racks (205) are respectively connected to the opposite sides with the movable block (211). The left and right sides of the bottom plate (1) are provided with connecting grooves (208). The front and rear sides of the two connecting grooves (208) are fixedly connected with springs (209). The adjacent sides of the multiple springs (209) are fixedly connected with wedge blocks (210).

3. The combined tender document classification box according to claim 1, characterized in that: The top left and right sides of the base plate (1) are provided with sliding grooves (18), and the bottoms of the two moving blocks (8) are slidably connected inside the sliding grooves (18).

4. The combined tender document classification box according to claim 1, characterized in that: The top cover (3) has grooves (19) on both the left and right sides, and the bottom plate (1) has protrusions (20) fixedly connected to both the left and right sides.

5. The combined tender document classification box according to claim 1, characterized in that: Handles (21) are fixedly connected to the lower middle part of the two opening and closing plates (15) on the opposite side, and sheaths (22) are fixedly connected to the outer side of the two handles (21).

6. The combined tender document classification box according to claim 1, characterized in that: The bottom left and right sides of the top cover (3) are fixedly connected to the limiting rails (16), and the tops of the two support rods (11) are slidably connected inside the limiting rails (16).

7. The combined tender document classification box according to claim 1, characterized in that: The front ends of the two threaded rods (7) pass through the base plate (1) and are fixedly connected to a knob (17). The outer diameter of the two opening and closing plates (15) matches the inner diameter of the top cover (3).

8. The combined tender document classification box according to claim 1, characterized in that: Each of the two opening and closing plates (15) and the bottom plate (1) is fixedly connected to a fixing piece (23) on the right side of the opposite end, and a door lock (24) is provided inside each of the fixing pieces (23).

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