[0043] Example two
[0044] Reference Figure 1-9 , A convenient mobile office storage box, including a storage box body 1, a side surface of the storage box body 1 is fixedly sleeved with a shell 2. The shape of the shell 2 is irregular, so that the shell 2 and the storage box body 1 are partially connected In this case, there is a gap between the housing 2 and the storage box body 1, a fixing seat 3 is welded on one side of the housing 2, a third through hole is opened on the fixing seat 3, and a cross bar 4 is welded in the third through hole. A first connecting rod 5 and a second connecting rod 6 are respectively rotatably installed at both ends of the rod 4. The first connecting rod 5 and the second connecting rod 6 are respectively provided with a first sliding groove and a second sliding groove, the first sliding groove The same pull rod 7 is slidably installed in the second chute. The side of the housing 2 away from the fixed seat 3 is fixedly installed with a pull ring 30 by screws. The pull ring 30 is matched with the pull rod 7, and the storage box body 1 is not When you need to move, you can turn the pull rod 7 so that the pull rod 7 is fixed on the pull ring 30. The pull ring 30 and the fixing seat 3 can be used to lift the entire storage box. The bottom end of the storage box body 1 is slidably installed The plate frame 21, the storage box body 1 can be divided into two ends, the upper end and the lower end have different outer diameters, the plate frame 21 is sleeved on the lower end of the storage box body 1, and the plate frame 21 is connected to the first connecting rod 5 and the second connecting rod. The rods 6 are matched, and the bottom of the plate frame 21 is rotatably installed at one end of the four rotating rods 23, and the other ends of the four rotating rods 23 are all provided with a pulley 24. Since the rotating rod 23 and the plate frame 21 can rotate relatively, the pulley 24 Can be rotated at any angle.
[0045] In the present invention, one end of a prism 10 is welded on both sides of the storage box body 1, two prisms 10 are slidably mounted with bolts 11, and two bolts 11 are provided with second through holes 12, and two prisms 10 They are slidably installed in two second through holes 12 respectively. The prism 10 is a column with a regular polygon in section. The shape of the second through hole 12 is adapted to the prism 10. The prism 10 and the bolt 11 are slidingly connected to ensure the rotation of the cam 13 At the same time, the bolt 11 is not driven to rotate, and the rotation of the cam 13 can drive the bolt 11 to slide on the prism 10.
[0046] In the present invention, the two bolts 11 are screwed with a cam 13, and the two cams 13 are both provided with threaded holes 14, and the two bolts 11 are respectively screwed into the two threaded holes 14, the threaded holes 14 and the bolts 11 The threaded connection is relatively dense, so the frictional resistance that needs to be overcome when the threaded hole 14 and the bolt 11 rotate relative to each other is relatively large. The cam 13 will contact the plate frame 21 during the rotation process, thereby squeezing the plate frame 21 to make the plate frame 21 moves down to drive the pulley 24 to be released.
[0047] In the present invention, a first fixed rod 15, a second fixed rod 16, and a third fixed rod 17 are welded to the two cams 13, and a ball 18 is welded to the two first fixed rods 15, and two second fixed rods 16 is matched with the first connecting rod 5 and the second connecting rod 6, and the two third fixed rods 17 are matched with the first connecting rod 5 and the second connecting rod 6 respectively. The pull rod 7 is pulled up to drive the first connecting rod The rod 5 and the second connecting rod 6 are pulled up, and the first connecting rod 5 and the second connecting rod 6 contact the second fixed rod 16 to drive the cam 13 to rotate. When the cam 13 rotates, the ball 18 is in the arc groove 20 Move, and the depth of the arc groove 20 gradually changes, so the rotation of the cam 13 will drive the cam 13 to move closer to the storage box body 1, so the second fixed rod 16 will gradually be retracted into the first through hole 9, so the first connecting rod 5 The second connecting rod 6 drives the cam 13 to rotate through the second fixed rod 16, and the rotation of the cam 13 will cause the second fixed rod 16 to retract into the first through hole 9. At this time, the rotation of the cam 13 is completed, and the second fixed After the rod 16 is retracted into the first through hole 9, it will not prevent the first connecting rod 5 and the second connecting rod 6 from being continuously lifted by the pull rod 7.
[0048] In the present invention, arc blocks 19 are welded on the inner walls of both sides of the housing 2, and arc grooves 20 are opened on the two arc blocks 19, and the two spheres 18 are movably installed in the two arc grooves 20, respectively. The outer part of the arc-shaped groove 20 has a small space, allowing only the first fixed rod 15 to move. The arc-shaped groove 20 has a large space for the movement of the sphere 18, that is, the sphere 18 is restricted in the arc-shaped groove 20. The depth of the groove 20 gradually changes.
[0049] In the present invention, both sides of the housing 2 are provided with first through holes 9, two second fixing rods 16 are respectively movably installed in the two first through holes 9, and two third fixing rods 17 are respectively movably installed in Two first through holes 9 inside.
[0050] In the present invention, one end of a plurality of first springs 22 is installed on the top of the plate frame 21, and the other ends of the plurality of first springs 22 are all welded to the storage box body 1.
[0051] In the present invention, the tie rod 7 is a hollow structure, the tie rod 7 is provided with a fourth through hole, and a sliding block 8 is slidably installed in the fourth through hole. The two sides of the sliding block 8 are welded with limit blocks 27 and two limit blocks 27 are all located in the pull rod 7, and the limiting block 27 can prevent the sliding block 8 from falling off from the fourth through hole.
[0052] In the present invention, two sliding rods 25 are slidably installed in the pull rod 7. The two sliding rods 25 are located on both sides of the sliding block 8, and the two sliding rods 25 are matched with the sliding block 8. One ends of several second springs 26 are welded, and the other ends of the several second springs 26 are welded to the inner wall of the pull rod 7. When the slider 8 is pressed, the slider 8 will drive the two sliders 25 to both sides. Sliding, when the slider 8 is no longer pressed, the two sliding rods 25 are also reset under the action of several second springs 26. In the present invention, in order to highlight the function of each structure, the relative size of the partial structure in the figure is only Reflects its functionality and connection relationship, which does not match the best size in actual use.
[0053] In the present invention, the ends of the two sliding rods 25 away from the slider 8 are welded with a rack 28, and the inner walls of the first connecting rod 5 and the second connecting rod 6 are both welded with a number of fixed teeth 29, and two racks 28 They are matched with several fixed teeth 29 in the first connecting rod 5 and the second connecting rod 6 respectively. The teeth on the rack 28 and the ends of the fixed teeth 29 that are close to each other are arc surfaces, so the rack 28 and the fixed teeth 29 The contact surface is relatively smooth without friction. When the sliding rod 25 moves, the rack 28 does not mesh with the fixed teeth 29, and the pull rod 7 can slide in the first link 5 and the second link 6, and when the sliding rod 25 is reset , The fixed teeth 29 mesh with the rack 28, and the pull rod 7 is fixed.
[0054] In the present invention, when the storage box body 1 does not need to be moved, the pull rod 7 is placed on the pull ring 30, the first spring 22 makes the plate frame 21 a relatively high position, the pulley 24 is retracted, and when the storage needs to be When the box body 1 moves, lift the lever 7 and rotate the lever 7 around the cross bar 4. The lever 7 drives the first link 5 and the second link 6 to be lifted together, the first link 5 and the second link 6 During the lifting process, the two second fixed rods 16 will be contacted respectively. The second fixed rod 16 is fixed on the cam 13. Therefore, the first link 5 and the second link 6 respectively drive the two cams 13 to rotate. 13 When rotating, the first fixed rod 15 and the sphere 18 are driven to slide in the arc-shaped groove 20. The arc-shaped groove 20 enables the cam 13 to rotate through the sphere 18 to simultaneously drive the cam 13 and the bolt 11 to approach the storage on the prism 10 Sliding in the direction of the box body 1, the higher the lifting angle of the first link 5 and the second link 6, the longer the movement distance of the cam 13, and the gradual movement of the cam 13 drives the second fixed rod 16 to move gradually, and finally Retracted into the first through hole 9, at this time, the first connecting rod 5 and the second connecting rod 6 no longer contact the second fixed rod 16, the pull rod 7 and the first connecting rod 5, the second connecting rod 6 are completely lifted, and at the same time When the cam 13 rotates, it touches the plate frame 21. The plate frame 21 is squeezed and moved downward, driving the four pulleys 24 to be lowered. At this time, the storage box body 1 can be driven to slide through the pull rod 7 and the pulley 24, and the cam 13 and the bolt 11 Spiral connection, the thread is dense, the friction between the threads is large, so the cam 13 will not reset by itself. When the length of the pull rod 7 needs to be adjusted, press the slider 8 and the slider 8 drives the two sliding rods 25 to slide , The sliding rod 25 moves so that the two racks 28 no longer mesh with the fixed teeth 29. At this time, the pull rod 7 can be slid in the first connecting rod 5 and the second connecting rod 6. After adjusting the length of the pull rod 7, release the sliding Block 8, the second spring 26 drives the two sliding rods 25 to reset, the two sliding rods 25 drive the sliding block 8 to reset, and the sliding rod 25 resets to drive the rack 28 to reset. The rack 28 and the fixed teeth 29 contact and slide each other, so that The rack 28 slides into the tooth gap of the fixed teeth 29. At this time, the rack 28 is fixed, and the slide bar 25 and the tie rod 7 are fixed. The length of the tie rod 7 can no longer be adjusted. After the storage box body 1 is transported, the reverse order is executed In the above steps, when the first connecting rod 5 and the second connecting rod 6 are put down, the third fixed rod 17 is contacted. The third fixed rod 17 is longer, and remains outside the first through hole 9 during the whole process. , And the first connecting rod 5 and the second connecting rod 6 drive the cam 13 to rotate through the third fixed rod 17, and the cam 13 rotates and resets and no longer interferes with the plate frame 21. The first spring 22 drives the plate frame 21 to move up and reset, and The pulley 24 is retracted.
