Disclosure of Invention
The invention aims to provide the new energy automobile battery locking box which can quickly replace the placement position of the new energy automobile battery, reduce the collision of the new energy automobile battery and quickly wrap the new energy automobile battery, so as to solve the defects that in the background art, a worker needs to consume more effort to carry the new energy automobile battery, the collision is inevitably caused in the process of carrying the new energy automobile battery, and the worker needs to consume a long time to wrap the new energy automobile battery completely.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a new energy automobile battery locking case, which comprises a base, a handle, the case lid, first fixed frame, the cardboard, first clamping lever, first compression spring and fixed plate, base outer wall both sides all rotate and are equipped with the handle, base top rotation formula is equipped with the case lid, case lid and base upper portion contact cooperation, base outer wall middle part is equipped with first fixed frame, be equipped with the cardboard in the middle of the case lid outer wall, cardboard and the sliding type cooperation of first fixed frame, first fixed frame both sides all slidingtype are equipped with first clamping lever, the quantity of first clamping lever is two, all the cover is equipped with first compression spring on two first clamping levers, the inner and the cardboard contact cooperation of two first clamping levers are connected respectively on first fixed frame and first clamping lever, be connected with the fixed plate between base inner wall upper portion, base inner wall lower part is equipped with loading mechanism, stop gear is installed to base inner wall lower part, stop gear is located loading mechanism's the outside.
Further, first telescopic links are arranged at intervals on two sides of the bottom of the inner wall of the base, the number of the first telescopic links is four, a loading plate is connected between the top ends of the four first telescopic links, first racks are arranged in the middle of two sides of the loading plate, and the number of the first racks is two.
Further, be equipped with first support in the middle of the base inner wall bottom, base inner wall bottom both sides all are equipped with the second telescopic link, the quantity of second telescopic link is four, be connected with the limiting plate between four second telescopic link tops, the limiting plate is located the outside of loading plate, the equal rigid coupling in limiting plate bottom both sides has the second rack, first support upper portion is equipped with the axle sleeve, the quantity of axle sleeve is two, the rotation is equipped with first pivot between two axle sleeves, all install full gear at the both ends of first pivot, the quantity of full gear is two, two full gears and all with first rack and second rack meshing.
Further, the base inner wall both sides all are equipped with the third telescopic link, the quantity of third telescopic link is four, be connected with first guard plate between the third telescopic link that is located same one side, the quantity of first guard plate is two, base inner wall both sides symmetry is equipped with the fourth telescopic link, the quantity of fourth telescopic link is four, be connected with the second protection shield between the fourth telescopic link inner that is located same one side, the quantity of second protection shield is two, first protection shield and the cooperation of second protection shield contact that corresponds, fixed plate bottom both sides lower part all is equipped with the fifth telescopic link, the quantity of fifth telescopic link is four, be connected with the holding down plate between the fifth telescopic link lower part that is located same one side, the quantity of holding down plate is two, all rotate on the first guard plate of both sides and be equipped with the gyro wheel, the quantity of gyro wheel is four, holding down plate and the cooperation of corresponding gyro wheel contact.
Further, the outside two equal rigid couplings of two first protective plates have the second support, the quantity of second support is four, all rotate in four second supports and be equipped with first bull stick, the fixed plate is worn out on the upper portion of first bull stick, the cover is equipped with first torsion spring on the first bull stick, the both ends of first torsion spring are connected respectively on first bull stick and fixed plate, the equal slidingtype of fixed plate both sides is equipped with the second kelly, the quantity of second kelly is four, the second kelly is contacted with the first rotating rod that corresponds and is cooperated, be connected with the depression bar between the second kelly that is located same one side, depression bar and fixed plate slidingtype cooperation, all overlap on four second kelly and be equipped with second compression spring, second compression spring's both ends are connected respectively on second kelly and fixed plate.
Further, the third support is all fixedly connected to base outer wall bottom both sides, the quantity of third support is four, base outer wall bottom both sides all are equipped with the fixed block, the quantity of fixed block is eight, be located the second bull stick that rotates between the fixed block of same one side, the quantity of second bull stick is four, all install the universal wheel on four second bull sticks, the quantity of universal wheel is four, all overlap on four second bull sticks and be equipped with second torsion spring, the quantity of second torsion spring is four, the both ends of second torsion spring are connected respectively on corresponding second bull stick and fixed block, all slidingtype in the four third supports is equipped with first pull rod, the quantity of first pull rod is four, the inner of four first pull rods all contacts the cooperation with corresponding second bull stick, four third support lower parts all are equipped with the sixth telescopic link, the quantity of sixth telescopic link is eight, the tip and the corresponding first pull rod of eight sixth telescopic links are connected.
Further, the base outer wall bottom both sides all are equipped with the head rod in the rotation type, the quantity of head rod is four, head rod and the first pull rod slidingtype cooperation that corresponds, the rigid coupling has the fixed frame of second in the middle of the base outer wall bottom, the fixed frame both sides of second all are equipped with the third connecting rod in the sliding type, the quantity of third connecting rod is two, the outer end rotation of two third connecting rods is equipped with the second connecting rod, the quantity of second connecting rod is four, the outer end of four second connecting rods is connected with the head rod rotation type that corresponds, be connected with third compression spring between the inboard of two third connecting rods, the quantity of third compression spring is two, the fixed frame lower part slidingtype of second is equipped with the second pull rod, the tip of second pull rod wears out the base, second pull rod and the third connecting rod slidingtype cooperation that corresponds.
Furthermore, square holes are formed in the second rotating rod at intervals, and the square holes can prevent the first pull rod from easily sliding off the second rotating rod.
Compared with the prior art, the invention has the beneficial effects that: 1. according to the invention, the new energy automobile battery can be loaded according to the requirement by arranging the loading mechanism and the limiting mechanism, and the new energy automobile battery can be limited at the same time, so that the new energy automobile battery is effectively prevented from being damaged due to inclination in the transportation process;
2. the novel energy automobile battery can be entirely wrapped by the protection mechanism and the clamping mechanism, so that the collision situation in the transportation process is reduced;
3. the invention can quickly change the placement position according to the carrying requirement of workers by arranging the sliding mechanism and the pulling mechanism, thereby reducing the labor intensity of the carrying of the workers.
Drawings
Fig. 1 is a schematic perspective view of a first part of the present invention.
Fig. 2 is a schematic perspective view of a second part of the present invention.
Fig. 3 is a schematic perspective view of a third part of the present invention.
Fig. 4 is a schematic perspective view of the present invention in use.
Fig. 5 is a schematic perspective view of the loading mechanism of the present invention.
Fig. 6 is a schematic perspective view of a limiting mechanism according to the present invention.
Fig. 7 is an enlarged perspective view of the present invention at a.
Fig. 8 is a schematic perspective view of the protection mechanism of the present invention.
Fig. 9 is an enlarged perspective view of the present invention at B.
Fig. 10 is a schematic perspective view of a first part of the clamping mechanism of the present invention.
Fig. 11 is a schematic perspective view of a second part of the clamping mechanism of the present invention.
Fig. 12 is a schematic perspective view of a sliding mechanism according to the present invention.
Fig. 13 is a schematic perspective view of a first portion of the pulling mechanism of the present invention.
Fig. 14 is a schematic perspective view of a second portion of the pulling mechanism of the present invention.
Fig. 15 is a schematic perspective view of a third portion of the pulling mechanism of the present invention.
Reference numerals illustrate: 1. a base, 2, a handle, 3, a box cover, 4, a first fixing frame, 5, a clamping plate, 6, a first clamping rod, 7, a first compression spring, 8, a fixing plate, 9, a loading mechanism, 91, a first telescopic rod, 92, a loading plate, 93, a first rack, 10, a limiting mechanism, 101, a first bracket, 102, a second telescopic rod, 103, a limiting plate, 104, a second rack, 105, a shaft sleeve, 106, a first rotating shaft, 107, an all-gear, 11, a protection mechanism, 111, a third telescopic rod, 112, a first protection plate, 113, a fourth telescopic rod, 114, a second protection plate, 115, a roller, 116, a fifth telescopic rod, 117, lower pressure plate, 12, chucking mechanism, 121, second bracket, 122, first rotating rod, 123, first torsion spring, 124, lower pressure rod, 125, second clamping rod, 126, second compression spring, 13, sliding mechanism, 131, third bracket, 132, fixed block, 133, universal wheel, 134, second rotating rod, 135, second torsion spring, 136, first pull rod, 137, sixth telescopic rod, 14, pulling mechanism, 141, first connecting rod, 142, second connecting rod, 143, second fixed frame, 144, second pull rod, 145, third connecting rod, 146, third compression spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 15, the present invention provides a technical solution: the utility model provides a new energy automobile battery locking box, which comprises a base 1, a handle 2, a box cover 3, a first fixed frame 4, a clamping plate 5, a first clamping rod 6, a first compression spring 7, a fixed plate 8, a loading mechanism 9, a first telescopic rod 91, a loading plate 92, a first rack 93, a limiting mechanism 10, a first bracket 101, a second telescopic rod 102, a limiting plate 103, a second rack 104, a shaft sleeve 105, a first rotating shaft 106, an all-gear 107, a protection mechanism 11, a third telescopic rod 111, a first protection plate 112, a fourth telescopic rod 113, a second protection plate 114, a roller 115, a fifth telescopic rod 116, a lower pressing plate 117, a clamping mechanism 12, a second bracket 121, a first rotating rod 122, a first torsion spring 123, a lower pressing rod 124, a second clamping rod 125, a second compression spring 126, a sliding mechanism 13, a third bracket 131, a fixed block 132, a universal wheel 133, a second rotating rod 134, a second torsion spring 135, a first pulling rod 136, a sixth telescopic rod 137, a pulling mechanism 14, a first connecting rod 141, a second connecting rod 142, a second fixing frame 142, a third connecting rod 144 and a third compression spring 144, the left side and the right side of the outer wall of the base 1 are both rotationally provided with handles 2, the rear side of the top of the base 1 is rotationally provided with a box cover 3, the box cover 3 is in contact fit with the upper part of the base 1, the middle part of the front side of the outer wall of the base 1 is provided with a first fixed frame 4, the middle part of the front side of the outer wall of the box cover 3 is provided with a clamping plate 5, the clamping plate 5 is in sliding fit with the first fixed frame 4, the left side and the right side of the first fixed frame 4 are both slidingly provided with first clamping rods 6, the number of the first clamping rods 6 is two, the two first clamping rods 6 are both sleeved with first compression springs 7, two ends of each first compression spring 7 are respectively connected with the first fixed frame 4 and the first clamping rods 6, the inner ends of the two first clamping rods 6 are in contact fit with the clamping plate 5, a fixed plate 8 is connected between the upper parts of the inner walls of the base 1, a loading mechanism 9 is arranged at the lower part of the inner walls of the base 1, a limiting mechanism 10 is arranged at the lower part of the inner walls of the base 1, and the limiting mechanism 10 is positioned at the outer side of the loading mechanism 9.
The space of the left side and the right side of the bottom of the inner wall of the base 1 is provided with four first telescopic rods 91, a loading plate 92 is connected between the top ends of the four first telescopic rods 91, the middle parts of the front side and the rear side of the loading plate 92 are respectively provided with a first rack 93, and the number of the first racks 93 is two.
The middle first support 101 that is equipped with in base 1 inner wall bottom, base 1 inner wall bottom left and right sides all is equipped with second telescopic link 102, the quantity of second telescopic link 102 is four, be connected with limiting plate 103 between four second telescopic link 102 tops, limiting plate 103 is located the outside of loading plate 92, both sides all rigid coupling has second rack 104 around the limiting plate 103 bottom, first support 101 upper portion is equipped with axle sleeve 105, the quantity of axle sleeve 105 is two, the rotation is equipped with first pivot 106 between two axle sleeves 105, all install full gear 107 in both ends around the first pivot 106, the quantity of full gear 107 is two, two full gear 107 and all with first rack 93 and second rack 104 meshing.
The base 1 inner wall front and back both sides all are equipped with the third telescopic link 111, the quantity of third telescopic link 111 is four, be connected with first protection board 112 between the third telescopic link 111 of being located same one side, the quantity of first protection board 112 is two, the symmetry of base 1 inner wall left and right sides is equipped with fourth telescopic link 113, the quantity of fourth telescopic link 113 is four, be connected with second protection shield 114 between the fourth telescopic link 113 inner of being located same one side, the quantity of second protection shield 114 is two, first protection board 112 and the contact cooperation of second protection shield 114 that corresponds, fixed plate 8 bottom left and right sides lower part all is equipped with fifth telescopic link 116, the quantity of fifth telescopic link 116 is four, be connected with holding down plate 117 between the fifth telescopic link 116 lower part of being located same one side, the quantity of holding down plate 117 is two, all rotate on the first protection board 112 of both sides and be equipped with gyro wheel 115, the quantity of gyro wheel 115 is four, holding down plate 117 and the contact cooperation with corresponding gyro wheel 115.
The two parts all rigid coupling has second support 121 about the outside of two first protection boards 112, the quantity of second support 121 is four, all rotate in four second support 121 and be equipped with first bull stick 122, fixed plate 8 is worn out on the upper portion of first bull stick 122, the cover is equipped with first torsion spring 123 on the first bull stick 122, the both ends of first torsion spring 123 are connected respectively on first bull stick 122 and fixed plate 8, both sides are all sliding around the fixed plate 8 are equipped with second clamping rod 125, the quantity of second clamping rod 125 is four, second clamping rod 125 and the contact cooperation of corresponding first bull stick 122, be connected with down the depression bar 124 between the second clamping rod 125 that lies in same one side, down the depression bar 124 and fixed plate 8 sliding cooperation, all the cover is equipped with second compression spring 126 on four second clamping rods 125, the both ends of second compression spring 126 are connected respectively on second clamping rod 125 and fixed plate 8.
The left and right sides of the bottom of the outer wall of the base 1 are fixedly connected with third brackets 131, the number of the third brackets 131 is four, the left and right sides of the bottom of the outer wall of the base 1 are respectively provided with fixing blocks 132, the number of the fixing blocks 132 is eight, second rotating rods 134 are rotatably arranged between the fixing blocks 132 on the same side, the number of the second rotating rods 134 is four, universal wheels 133 are respectively arranged on the four second rotating rods 134, the number of the universal wheels 133 is four, second torsion springs 135 are respectively sleeved on the four second rotating rods 134, the number of the second torsion springs 135 is four, two ends of the second torsion springs 135 are respectively connected to the corresponding second rotating rods 134 and the fixing blocks 132, first pull rods 136 are respectively arranged in the four third brackets 131 in a sliding mode, the number of the four first pull rods 136 are respectively in contact with the corresponding second rotating rods 134, sixth telescopic rods 137 are respectively arranged on the lower parts of the four third brackets 131, the number of the sixth telescopic rods 137 is eight, and the ends of the eight telescopic rods 137 are respectively connected with the corresponding first pull rods 136.
The left and right sides of the outer wall bottom of the base 1 are respectively provided with a first connecting rod 141 in a rotary mode, the number of the first connecting rods 141 is four, the first connecting rods 141 are in sliding fit with the corresponding first pull rods 136, a second fixing frame 143 is fixedly connected in the middle of the outer wall bottom of the base 1, third connecting rods 145 are respectively arranged on the left side and the right side of the second fixing frame 143 in a sliding mode, the number of the third connecting rods 145 is two, the outer ends of the two third connecting rods 145 are respectively provided with a second connecting rod 142 in a rotary mode, the outer ends of the four second connecting rods 142 are respectively connected with the corresponding first connecting rods 141 in a rotary mode, third compression springs 146 are connected between the inner sides of the two third connecting rods 145, the number of the third compression springs 146 is two, a second pull rod 144 is arranged on the lower portion of the second fixing frame 143 in a sliding mode, the front side of the second pull rod 144 penetrates out of the base 1, and the second pull rod 144 is in sliding fit with the corresponding third connecting rods 145.
When a worker needs to put the new energy automobile battery into the locking box, the worker can manually slide the first clamping rod 6 outwards on the first fixed frame 4, the first compression spring 7 is compressed, when the first clamping rod 6 slides outwards to temporarily stop contacting with the clamping plate 5, the worker can manually rotate the box cover 3 on the base 1, the box cover 3 rotates to rotate the clamping plate 5, when the clamping plate 5 rotates to temporarily stop contacting with the first fixed frame 4, the worker can put the new energy automobile battery on the loading mechanism 9, the loading mechanism 9 moves downwards due to the fact that the new energy automobile battery has a certain gravity, the limiting mechanism 10 moves upwards due to the fact that the loading mechanism 9 moves downwards, the limiting mechanism 10 moves upwards to limit the outer side of the new energy automobile battery, so that damage caused by tilting of the new energy automobile battery in the transportation process can be avoided, then the worker can manually rotate the case cover 3 on the base 1 in the opposite direction, the case cover 3 rotates to rotate the clamping plate 5, after the clamping plate 5 rotates to be positioned in the first fixing frame 4 again, the worker can rapidly loosen the first clamping rod 6, the first compression spring 7 resets to enable the first clamping rod 6 to slide inwards on the first fixing frame 4, when the first clamping rod 6 slides inwards to penetrate into the clamping plate 5, the first clamping rod 6 limits the clamping plate 5, when the worker needs to take out the new energy automobile battery on the loading mechanism 9, the worker can rotate the case cover 3 on the base 1 again, then the worker can manually take out the new energy automobile battery on the loading mechanism 9, the loading mechanism 9 gradually lightens due to the gravity of the loading mechanism 9, the loading mechanism 9 slides upwards to reset to enable the limiting mechanism 10 to slide downwards, the limiting mechanism 10 slides downwards to reset to temporarily stop limiting the outside of the new energy automobile battery, meanwhile, a worker can quickly replace the placement position of the base 1 through the handle 2, and if the worker still needs to use the locking box to transport the new energy automobile battery, the worker can repeat the operation again.
When the clamping plate 5 rotates to temporarily stop to be in contact with the first fixing frame 4 and the fixing plate 8, a worker can put a new energy automobile battery on the loading plate 92, the loading plate 92 moves downwards due to the fact that the new energy automobile battery has certain gravity, the loading plate 92 moves downwards to enable the first rack 93 to move downwards, at the moment, the first telescopic rod 91 is compressed, the worker can manually take out the new energy automobile battery on the loading plate 92, the first telescopic rod 91 stretches and resets due to the fact that the gravity of the loading plate 92 gradually becomes light, the first telescopic rod 91 stretches to enable the loading plate 92 and the first rack 93 to move upwards and reset, and therefore the locking box can put new energy automobile batteries with different lengths, and if the worker still needs to continue to put the new energy automobile battery, the worker can repeat the operation again.
In order to avoid the damage caused by the inclination of the battery of the new energy automobile in the process of transportation, when the first rack 93 moves downwards to be in contact with the full gear 107, the first rack 93 can enable the full gear 107 to rotate, the full gear 107 rotates to enable the first rotating shaft 106 to rotate in the shaft sleeve 105, the full gear 107 rotates to enable the second rack 104 to move upwards, the limiting plate 103 moves upwards, the second telescopic rod 102 stretches, the limiting plate 103 moves upwards to be located at the outer side of the battery of the new energy automobile, the limiting plate 103 limits the outer side of the battery of the new energy automobile, accordingly the situation that the battery of the new energy automobile is damaged due to the inclination of the battery of the new energy automobile in the process of transportation is effectively avoided, when the first rack 93 moves upwards, the full gear 107 rotates to the opposite direction, the full gear 107 rotates to enable the first rotating shaft 106 to rotate in the shaft sleeve 105, the full gear 107 rotates to enable the second rack 104 to move downwards, the limiting plate 103 moves downwards, the second telescopic rod 102 resets, the limiting plate 103 moves downwards to be located at the outer side of the battery of the new energy automobile, and the battery 103 stops temporarily, and the battery of the new energy automobile stops temporarily, and the new energy automobile is locked to be locked further.
The new energy automobile battery can avoid colliding with in the in-process of transportation, so the workman can manually make holding down plate 117 move downwards, fifth telescopic link 116 extension, holding down plate 117 moves down to when being in contact with gyro wheel 115, holding down plate 117 can make gyro wheel 115 rotate on first protection plate 112, simultaneously gyro wheel 115 can make first protection plate 112 move inwards, third telescopic link 111 can extend, first protection plate 112 moves inwards when being in contact with second protection plate 114, first protection plate 112 can make second protection plate 114 move inwards, fourth telescopic link 113 extends, first protection plate 112 and second protection plate 114 move inwards when being in contact with new energy automobile battery, first protection plate 112 and second protection plate 114 can clamp new energy automobile battery, thereby effectually avoid new energy automobile battery to appear colliding with in the in-process of transportation, when the workman temporarily need not clamp new energy automobile battery, the workman can unclamp holding down plate 117 rapidly, fifth telescopic link 116 resets and can make lower plate 117 move upwards, when lower pressing down plate 112 moves upwards to stop being in contact with gyro wheel 115 temporarily, first protection plate 111 resets and can make second protection plate 114 move inwards when being in contact with second protection plate 114 temporarily, first protection plate 112 moves outwards, first protection plate 112 and second protection plate 114 temporarily stops moving outwards when being in contact with new energy automobile battery temporarily, first protection plate 114 moves outwards, first protection plate 112 and second protection plate 114 moves outwards temporarily and first protection plate 114 moves outwards, first protection plate 114 moves outwards and stops moving to the new energy automobile battery temporarily to move to the new energy automobile battery temporarily, and the new energy automobile battery can be in contact with the new energy automobile battery, the first protection plate can be avoided when being in the new energy automobile battery can be in the transportation, bump, the new energy automobile battery can be in the transport, when the new energy automobile battery can not has been in the new energy automobile can fast unclamps, when the new energy automobile can release.
In order to avoid that the battery of the new energy automobile suddenly bounces up during transportation, when the first protection plate 112 moves inwards, the first protection plate 112 can enable the second support 121 to move inwards, the second support 121 can enable the first rotating rod 122 and the first torsion spring 123 to move inwards, meanwhile, the second support 121 can enable the first rotating rod 122 to rotate, the first torsion spring 123 is stretched, when the first rotating rod 122 rotates to be close to the upper part of the second clamping rod 125, at the moment, people manually loosen the lower pressure rod 124, the second compression spring 126 resets to enable the lower pressure rod 124 to slide upwards in the fixed plate 8, the lower pressure rod 124 slides upwards to enable the second clamping rod 125 to slide upwards to reset, the second clamping rod 125 can limit the first rotating rod 122, at the moment, the first rotating rod 122 can fix the upper part of the battery of the new energy automobile, when the worker temporarily does not need to fix the upper part of the battery of the new energy automobile, the worker can manually slide the lower pressing rod 124 downwards in the fixing plate 8, the lower pressing rod 124 slides downwards to slide the second clamping rod 125 downwards, the second compression spring 126 is compressed, the first torsion spring 123 resets to enable the first rotating rod 122 to rotate and reset in the second bracket 121 when the second clamping rod 125 slides downwards to temporarily stop contacting with the first rotating rod 122, at the moment, the first rotating rod 122 temporarily stops fixing the upper part of the battery of the new energy automobile, when the first protection plate 112 slides outwards, the first protection plate 112 can enable the second bracket 121 and the first rotating rod 122 to move outwards, and then the first torsion spring 123 can move outwards, so that the locking box can further fix the upper part of the battery of the new energy automobile according to the requirement, therefore, the condition that the battery of the new energy automobile suddenly bounces up when shaking in the transportation process is reduced.
Because the base 1 and the new energy automobile battery have certain gravity, the worker needs to consume great effort to carry the new energy automobile battery, the worker can manually slide the first pull rod 136 inwards in the third bracket 131, when the first pull rod 136 slides inwards to temporarily stop contacting with the second rotating rod 134, the first pull rod 136 temporarily stops limiting the second rotating rod 134, the sixth telescopic rod 137 is stretched, the second torsion spring 135 resets to enable the second rotating rod 134 to rotate on the fixed block 132, the second rotating rod 134 enables the universal wheel 133 to rotate, the universal wheel 133 rotates to contact with the ground, the adaptive rotation of the universal wheel 133 can assist the base 1 to move, and therefore the labor intensity of the worker to carry the base 1 and the new energy automobile battery can be relieved, if a worker temporarily does not need to carry the base 1 and the battery of the new energy automobile, the worker can manually rotate the universal wheel 133, the rotation of the universal wheel 133 can rotate the second rotating rod 134 on the fixed block 132, the reset of the second torsion spring 135 can assist the rotation reset of the second rotating rod 134, then the worker can rapidly loosen the first pull rod 136, the reset of the sixth telescopic rod 137 can enable the first pull rod 136 to slide outwards on the third bracket 131, and when the first pull rod 136 slides outwards to be in contact with the second rotating rod 134, the first pull rod 136 can limit the second rotating rod 134, so that the universal wheel 133 is fixed, the base 1 can be in contact with the ground, and the locking box can rapidly change the placing position according to the carrying requirement of the worker.
The worker simultaneously makes the process of moving the first pull rod 136 inwards more complicated, the worker can slide the second pull rod 144 to the front side in the base 1 and the second fixing frame 143, the second pull rod 144 slides to the front side to enable the third connecting rod 145 to slide inwards on the second fixing frame 143, the third compression spring 146 is compressed, meanwhile, the third connecting rod 145 can enable the second connecting rod 142 to move inwards, the second connecting rod 142 moves inwards to enable the first connecting rod 141 to move inwards, the first connecting rod 141 can enable the first pull rod 136 to move inwards, at the moment, the universal wheel 133 can be in contact with the ground, when the worker temporarily does not need to enable the universal wheel 133 to be in contact with the ground, the worker can quickly release the first connecting rod 141 when the universal wheel 133 rotates to be in contact with the base 1, the third compression spring 146 resets to enable the third connecting rod 145 to move outwards on the second fixing frame 143, the third connecting rod 145 moves outwards to enable the second connecting rod 142 and the first connecting rod 141 to move outwards, meanwhile, the first connecting rod 141 can enable the first pull rod 136 to move outwards, the first connecting rod 136 can enable the first pull rod 136 to move inwards, at the moment, the first pull rod 136 can be controlled to slide outwards, and the first pull rod 136 can slide in the direction, and the first pull rod 136 can be effectively locked, so that the first pull rod 136 can slide.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.