CN113460522A

CN113460522A - A location protection navigation uses bin for hydraulic engineering

Info

Publication number: CN113460522A
Application number: CN202110935732.XA
Authority: CN
Inventors: 范祥涛
Original assignee: Individual
Current assignee: China Institute of Water Resources and Hydropower Research
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2021-10-01
Anticipated expiration: 2041-08-16
Also published as: CN113460522B

Abstract

The invention provides a positioning protection shipping storage box for hydraulic engineering, which relates to the technical field of hydraulic engineering and aims to solve the problems that when the existing storage box is used for shipping and transportation, a mooring rope slides on the storage box when a ship shakes, and the fixing force on the storage box is weakened; the sliding blocks in the positioning pieces are slidably arranged at the edges of two sides of the top of the box body; the fixing device is arranged on the inner side of the box body, an inner groove in the fixing device is arranged on the inner side of the box body, and one side of the inner groove is arranged on the front side of the box body; the supporting mechanism is arranged on the outer side of the bottom of the box body, and a bottom groove in the supporting mechanism is formed in the bottom of the box body. A plurality of sliders make different hawsers slide and use, and the hawser tightens up and makes the cardboard fix in the inside of draw-in groove, reduces the slip of slider, increases the stationary force of hawser to the bin.

Description

A location protection navigation uses bin for hydraulic engineering

Technical Field

The invention belongs to the technical field of hydraulic engineering, and particularly relates to a storage box for positioning, protecting and navigating of hydraulic engineering.

Background

The method comprises the steps of building hydraulic engineering, controlling water flow, preventing flood disasters, adjusting and distributing water quantity to meet the requirements of people on water resources in life and production, and for some large rivers and hydraulic engineering, when the hydraulic engineering is built, a storage box is required to be used for transporting some necessities through ships, so that the construction of the hydraulic engineering is guaranteed.

For example, application No.: CN201910200536.0 relates to an international shipping logistics transportation container, which comprises a supporting plate, a container, a horizontal sensor, a mounting plate, a hydraulic cylinder, a spring, a first motor, a controller and a clamping module; the spring is arranged between the left end and the right end of the supporting plate and the mounting plate, the left end and the right end of the supporting plate are symmetrically provided with the two hydraulic cylinders, the lower ends of the cylinder bodies of the hydraulic cylinders are hinged to the upper end surface of the mounting plate, the end parts of the cylinder rods of the hydraulic cylinders are provided with the waist-shaped holes, and the hydraulic cylinders at the lower ends of the supporting plate are controlled by the controller, so that the supporting plate is always kept horizontal; simultaneously, the end part of the cylinder rod of the hydraulic cylinder is provided with the waist-shaped hole, so that when the container is stably placed, the hydraulic cylinder is separated from the supporting plate, and when the container encounters small jolts, the vibration is reduced and the container is tilted by the spring, the service life of the hydraulic cylinder is prolonged, the vibration filtering effect of the container is improved, and the stability of the container in the transportation process is ensured.

Based on prior art discovery, current bin when shipping, the bin is placed on boats and ships, needs fix through the hawser, makes the hawser slide on the bin when boats and ships rock, weakens the stationary force to the bin, and long-time use causes the wearing and tearing of hawser easily, is in the potential safety hazard, and when the bin hoist and mount, the bottom one side of the inhomogeneous easy bin that the lifting rope distributes contacts ground earlier and leads to the bin to turn on one's side.

Disclosure of Invention

In order to solve the technical problems, the invention provides a storage box for positioning protection navigation of hydraulic engineering, which aims to solve the problems that when the existing storage box is transported in a shipping mode, the storage box is placed on a ship and needs to be fixed through a cable, when the ship shakes, the cable slides on the storage box, the fixing force on the storage box is weakened, the cable is easily worn due to long-time use, potential safety hazards exist, and when the storage box is hoisted, lifting ropes are unevenly distributed, so that one side of the bottom of the storage box is easily in contact with the ground firstly, and the storage box turns on one side.

The invention relates to a storage box for positioning, protecting and navigating of hydraulic engineering, which is achieved by the following specific technical means:

a bin for positioning protection shipping for hydraulic engineering, comprising: a case, the case comprising: the top groove is of a rectangular structure and is arranged on the side face of the edge position of the top of the box body; the sliding blocks in the positioning pieces are slidably arranged at the edges of two sides of the top of the box body; the fixing device is arranged on the inner side of the box body, an inner groove in the fixing device is arranged on the inner side of the box body, and one side of the inner groove is arranged on the front side of the box body; the supporting mechanism is arranged on the outer side of the bottom of the box body; the side plates are of rectangular plate structures and are arranged at the outer ends of the bottom plates, and the bottom grooves in the supporting mechanisms are formed in the bottom of the box body.

Further, the fixing device includes: the side surface of the inner groove is provided with an arc-shaped groove, and an inner plate is arranged in the inner groove through a rotating shaft; the inner plate is provided with a positioning hole at the top and two slots at the side; the outer end of the cross rod is provided with a rotating plate, the front side of the rotating plate is provided with four grooves, the outer side of the rotating plate is provided with a plurality of lugs which are uniformly arranged, and the cross rod penetrates through the front side of the box body and is arranged in the inner groove.

Further, the support mechanism further includes: the transverse plate is of a rectangular plate structure and is arranged on the outer side of the bottom groove through a spring; the pull plate is of a U-shaped structure and is arranged at the top of the transverse plate, and the pull plate is slidably arranged in a groove at the top of the outer end of the bottom plate.

Further, the positioning member further includes: the side grooves are of L-shaped structures and are arranged on two sides of the top opening groove of the sliding block; the cardboard, the bottom of cardboard is equipped with the sloping block, and the sloping block of cardboard bottom installs in the inside of draw-in groove, and the both sides of cardboard are through the inside of two spring mountings in the side channel.

Furthermore, the top of the top plate is provided with a slot, and two ends of the top plate are arranged in the top slot through springs; the positioning device is internally provided with a GPS element and is arranged in a slot at the top of the top plate in a sliding way through a spring; the box is of a rectangular structure, a box door is installed on the front side of the box through a hinge, and a positioning piece is installed at the top of the box.

Further, the fixing device further includes: the locating lever is installed to the bottom of baffle, and the locating lever of baffle bottom inserts in the locating hole at inner panel top to the bottom of baffle is connected through the fluting bottom of spring and inner panel side.

Further, the fixing device further includes: the push plate is of an oval-like structure and is arranged at the outer end of the cross rod, and the push plate is rotatably arranged on the side surface of the inner plate; the bottom of the fixing plate is provided with a convex block, the fixing plate is installed at the top of one side of the inner groove through a spring, and the convex block at the bottom of the fixing plate is inserted at the outer side of the rotating plate at the outer end of the cross rod.

Further, the support mechanism includes: the bottom groove is of a rectangular structure, and two sides of the bottom groove penetrate through the bottom of the side face of the box body; the top of the outer end of the bottom plate is provided with a groove, and the bottom plate is arranged in the bottom groove through a spring; the bottom of connecting plate is connected with the top of riser through the pivot, and the both ends slidable mounting of connecting plate is in the inside of erecting the groove.

Further, the positioning member includes: the clamping grooves are of an inclined structure and are uniformly arranged at the edge of the top of the box body; the bottom of slider is equipped with the recess, and the top of slider is equipped with the fluting.

Further, the support mechanism further includes: the vertical plate is of a rectangular plate structure and is installed at the top of the side plate through the rotating shaft; the vertical groove is of a rectangular structure and is arranged on the side face of the edge of the side face of the box body.

Compared with the prior art, the invention has the following beneficial effects:

1. in the device, the sliding blocks are arranged, the cable rope is placed at the top of the clamping plate, the sliding blocks slide along the edge of the top of the box body, the cable rope can be placed at a proper position, the sliding blocks enable different cable ropes to be used in a sliding mode, the cable rope is tightened to enable the clamping plate to be fixed inside the clamping groove, sliding of the sliding blocks is reduced, fixing force of the cable rope on the storage box is increased, when a ship is prevented from shaking, the rope shakes at the edge of the storage box, friction of the cable rope is reduced, and the service life of the cable rope is prolonged, and safety factors are improved;

2. in this device, the diaphragm has been set up, bottom one side contact ground of bin, the diaphragm receives pressure and promotes the arm-tie rebound, the bottom both sides at the box can be supported to the bottom plate under the effect of spring, the area of increase bottom half, reduce the probability that takes place to turn on one's side, when the bottom plate outwards removed, the riser plays certain holding power to the bottom plate, prevent the condition of bottom plate rupture, when the diaphragm does not receive external force, the inside of bottom plate indentation kerve keeps the wholeness of box, be convenient for pile up and place.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional structure of the tank of the present invention.

Fig. 3 is a schematic perspective view of a card slot of the present invention.

FIG. 4 is a schematic cross-sectional view of a slider according to the present invention.

Fig. 5 is a schematic perspective view of the inner panel of the present invention.

Fig. 6 is a structural view showing the deployed state of the barrier according to the present invention.

Fig. 7 is a perspective view of the base plate of the present invention.

Fig. 8 is a schematic perspective view of the pulling plate of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a box body; 101. a top groove; 102. a top plate; 103. a positioning device; 2. a positioning member; 201. a card slot; 202. a slider; 203. a side groove; 204. clamping a plate; 3. a fixing device; 301. an inner tank; 302. an inner plate; 303. a baffle plate; 304. a cross bar; 305. pushing the plate; 306. a fixing plate; 4. a support mechanism; 401. a bottom groove; 402. a base plate; 403. a transverse plate; 404. pulling a plate; 405. a side plate; 406. a vertical plate; 407. a vertical slot; 408. a connecting plate.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the invention provides a storage box for positioning protection shipping of hydraulic engineering, comprising:

as shown in fig. 1 and fig. 2, the box 1, box 1 are rectangular structures, and the front side of box 1 installs the chamber door through the hinge, and the top of box 1 installs the setting element 2, and box 1 includes: the top groove 101, the top groove 101 is a rectangular structure, and the top groove 101 is arranged on the side surface of the top edge position of the box body 1; the top of the top plate 102 is provided with a slot, and two ends of the top plate 102 are arranged in the top slot 101 through springs; positioner 103, positioner 103 is in the top of box 1, guarantee the stable transmission of signal, positioner 103's internally mounted has the GPS component, and positioner 103 passes through spring slidable mounting in the fluting at roof 102 top, be equipped with two top grooves 101 in the position at the top edge of box 1, when boats and ships rock, make roof 102 remove in the inside of top groove 101 under the effect of spring, positioner 103 removes in the fluting at roof 102 top under the effect of spring simultaneously, reduce the impact force when rocking to positioner 103's influence, guarantee that the GPS component in positioner 103 normally works.

As shown in fig. 3 and 4, the positioning member 2, the sliding blocks 202 in the positioning member 2 are slidably mounted at the positions of the two side edges of the top of the box body 1, and the positioning member 2 includes: the positions of the clamping grooves 201 ensure the diversity of the sliding block 202 during movement, the clamping grooves are suitable for being positioned at different positions from the mooring rope, the clamping grooves 201 are of an inclined structure, and the clamping grooves 201 are uniformly arranged at the top edge of the box body 1; the sliding block 202, the bottom of the sliding block 202 is provided with a groove, and the top of the sliding block 202 is provided with a slot; the side groove 203, the side groove 203 is an L-shaped structure, and the side groove 203 is arranged at two sides of the top slot of the slider 202; cardboard 204, the bottom of cardboard 204 is equipped with the tilting block, and the inside at draw-in groove 201 is installed to the tilting block of cardboard 204 bottom, and the both sides of cardboard 204 are through the inside of two spring mounting at side channel 203, need bind the bin use hawser to some boats and ships, guarantee the stability of bin, make the hawser place in the arc wall at cardboard 204 top, curved structure prevents the wearing and tearing to the hawser, it slides at the top border position of box 1 to drive slider 202 through using the hawser, slider 202 slides when suitable place, the hawser is tightened up and is pressed cardboard 204 and is removed, make the spring extension of cardboard 204 both sides, make the tilting block of cardboard 204 bottom in the inside of draw-in groove 201, fix the position of slider 202.

As shown in fig. 5 and 6, the fixing device 3 being installed inside the cabinet 1, and the inner tank 301 in the fixing device 3 being provided inside the cabinet 1, and one side of the inner tank 301 being provided at the front side of the cabinet 1, the fixing device 3 comprising: an inner groove 301, wherein the side surface of the inner groove 301 is provided with an arc-shaped groove, and an inner plate 302 is arranged in the inner groove 301 through a rotating shaft; the inner plate 302, the top of the inner plate 302 is provided with a positioning hole, and the side of the inner plate 302 is provided with two slots; a positioning rod is arranged at the bottom of the baffle 303, the positioning rod at the bottom of the baffle 303 is inserted into a positioning hole at the top of the inner plate 302, and the bottom of the baffle 303 is connected with the bottom of the groove on the side surface of the inner plate 302 through a spring; a cross bar 304, wherein the outer end of the cross bar 304 is provided with a rotating plate, the front side of the rotating plate is provided with four grooves, the outer side of the rotating plate is provided with a plurality of uniformly arranged lugs, and the cross bar 304 penetrates through the front side of the box body 1 and is arranged inside the inner groove 301; the push plate 305, the push plate 305 is of an ellipse-like structure, the push plate 305 is arranged at the outer end of the cross rod 304, and the push plate 305 is rotatably arranged on the side surface of the inner plate 302; a fixing plate 306, after the cross bar 304 rotates to a proper position, the bottom of the fixing plate 306 is inserted outside the rotating plate at the outer end of the cross bar 304 under the action of a spring to fix the position of the cross bar 304, thereby fixing the position of the inner plate 302, the bottom of the fixing plate 306 is provided with a lug, the fixing plate 306 is arranged at the top of one side of the inner groove 301 through the spring, the lug at the bottom of the fixing plate 306 is inserted outside the rotating plate at the outer end of the cross bar 304, two opposite inner grooves 301 are arranged at the inner side of the box body 1, when goods are placed in the box body 1, the rotating plate at the outer end of the cross bar 304 is rotated according to the stacking degree of the goods, the far end positions of three push plates 305 at the outer side of the cross bar 304 push the inner plate 302 to move, the inner plate 302 is attached to the two sides of the goods, the goods are prevented from swinging along with the ship, the safety of the goods is ensured, the baffle 303 moves under the action of the spring when the inclination angle of the inner plate 302 is too large, the locating lever of baffle 303 bottom moves outwards at the top of inner panel 302, guarantees the fixed to the goods.

In another embodiment, a micro cylinder is installed on the inner side of the inner plate 302 to push the inner plate 302 to move, so that the inner plate 302 moves according to the number of the goods and the stacking state, the inner plate 302 is tightly attached to the goods, the fixing force of the goods is improved, and meanwhile, the micro cylinder pushes the inner plate 302 to move, and the labor force of workers is reduced.

As shown in fig. 7 and 8, the supporting mechanism 4 is installed outside the bottom of the box 1, and the bottom slot 401 in the supporting mechanism 4 is arranged at the bottom of the box 1, after the box 1 falls to the ground smoothly, the bottom plate 402 retracts into the bottom slot 401, the vertical plate 406 is placed on the side of the box 1 in a closed manner, and the integrity of the box 1 is maintained, the supporting mechanism 4 includes: the bottom groove 401 is of a rectangular structure, and two sides of the bottom groove 401 penetrate through the bottom of the side face of the box body 1; a bottom plate 402, wherein a groove is arranged at the top of the outer end of the bottom plate 402, and the bottom plate 402 is arranged inside the bottom groove 401 through a spring; the transverse plate 403 is of a rectangular plate structure, and the transverse plate 403 is installed on the outer side of the bottom groove 401 through a spring; the pulling plate 404 is of a U-shaped structure, the pulling plate 404 is arranged at the top of the transverse plate 403, and the pulling plate 404 is slidably arranged in a groove at the top of the outer end of the bottom plate 402; a side plate 405, wherein the side plate 405 is a rectangular plate structure, and the side plate 405 is installed at the outer end of the bottom plate 402; a vertical plate 406, wherein the vertical plate 406 is of a rectangular plate structure, and the vertical plate 406 is installed at the top of the side plate 405 through a rotating shaft; the vertical slot 407, the vertical slot 407 is a rectangular structure, and the vertical slot 407 is set up in the side of the side edge position of the container body 1; a connecting plate 408, the bottom of the connecting plate 408 is connected with the top of the vertical plate 406 through a rotating shaft, two ends of the connecting plate 408 are slidably mounted inside the vertical groove 407, the bottom of the box body 1 is provided with a bottom groove 401, when one side edge of the bottom of the box body 1 contacts the ground, the horizontal plate 403 moves upwards, and the horizontal plate 403 drives the pulling plate 404 to move upwards, so that the pulling plate 404 loses the fixing force on the bottom plate 402, under the action of a plurality of springs, the bottom plate 402 moves out of the bottom groove 401, so that the bottom plate 402 can be supported on one side of the box body 1, the area of the bottom of the box body 1 is increased, the box body 1 is prevented from turning sideways, when the bottom plate 402 moves outwards, the bottom plate 402 drives the side plate 405 to move, so that the side plate 405 drives the vertical plate 406 to move through the rotating shaft, the top end of the vertical plate 406 is connected with the connecting plate 408 through the rotating shaft, so that two ends of the connecting plate 408 move inside the vertical groove 407, so that the vertical plate 406 is in an inclined structure, the vertical plates 406 provide certain supporting force for the bottom plate 402, so that the stability of the bottom plate 402 is improved, and the side turning of the storage box is reduced.

When in use: when the storage box is used for transporting goods in hydraulic engineering, firstly, the goods in the box body 1 are fixed, according to the stacking degree and the quantity of the goods, the rotating plate at the outer end of the cross rod 304 is rotated to drive the three push plates 305 to move, so that the push plates 305 push the inner plates 302 to move to be attached to two sides of the goods, fixing force is applied to the goods, meanwhile, the baffle plates 303 move outwards under the action of the springs to ensure the fixation of the goods, the fixing plates 306 are used for fixing the rotating plates at the outer end of the cross rod 304, so that the positions of the inner plates 302 are fixed, then, the box body 1 is lifted to move, one side edge position at the bottom of the box body 1 is contacted with the ground, the transverse plates 403 move upwards under the pressure, the transverse plates 403 drive the pull plates 404 to move upwards to lose the fixing force on the bottom plates 402, the bottom plates 402 move out of the bottom grooves 401 under the pushing of the springs to be supported on one side of the box body 1 to prevent the box body 1 from turning over, and meanwhile, the bottom plates 402 push the side plates 405 to move, the both ends of connecting plate 408 remove in erecting groove 407, riser 406 is the holding power that the slope form increases to bottom plate 402, improve bottom plate 402's steadiness, place the hawser in the arc wall at cardboard 204 top again, the hawser drives slider 202 and slides, the hawser is tightened up and is pressed the slope piece block that moves cardboard 204 bottom in draw-in groove 201, fix slider 202's position, use the stability that the hawser binded the assurance bin to the bin, roof 102 removes in top groove 101 under the effect of spring, positioner 103 removes in the fluting at roof 102 top simultaneously, reduce the impact force when rocking and to positioner 103's damage, guarantee the location protection to the bin.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a bin for location protection shipping for hydraulic engineering which characterized in that: a bin for location protection navigation for hydraulic engineering includes:

the refrigerator comprises a refrigerator body, a refrigerator door and a refrigerator door, wherein the refrigerator door is installed on the front side of the refrigerator body through a hinge, and a positioning piece is installed at the top of the refrigerator body;

the sliding blocks in the positioning pieces are slidably arranged at the edges of two sides of the top of the box body;

the fixing device is arranged on the inner side of the box body, an inner groove in the fixing device is arranged on the inner side of the box body, and one side of the inner groove is arranged on the front side of the box body;

the supporting mechanism is arranged on the outer side of the bottom of the box body, and a bottom groove in the supporting mechanism is formed in the bottom of the box body.

2. A storage tank for positioning protection of hydraulic engineering for aeronautical use according to claim 1, characterized in that: the box body comprises:

the top groove is arranged on the side face of the top edge of the box body;

the top of the top plate is provided with a slot, and two ends of the top plate are arranged in the top slot through springs; and the positioning device is arranged in the groove at the top of the top plate in a sliding manner through a spring.

3. A storage tank for positioning protection of hydraulic engineering for aeronautical use according to claim 1, characterized in that: the positioning member includes:

the clamping grooves are of an inclined structure and are uniformly arranged at the edge of the top of the box body;

the bottom of slider is equipped with the recess, and the top of slider is equipped with the fluting.

4. A storage tank for positioning protection of hydraulic engineering for aeronautical use according to claim 1, characterized in that: the positioning member further includes:

the side grooves are arranged on two sides of the top open groove of the sliding block; the cardboard, the bottom of cardboard is equipped with the sloping block, and the sloping block of cardboard bottom installs in the inside of draw-in groove, and the both sides of cardboard are through the inside of two spring mountings in the side channel.

5. A storage tank for positioning protection of hydraulic engineering for aeronautical use according to claim 1, characterized in that: the fixing device includes:

an inner plate is arranged in the inner groove through a rotating shaft;

the top of inner panel is equipped with the locating hole, and the side of inner panel is equipped with two flutings.

6. A storage tank for positioning protection of hydraulic engineering for aeronautical use according to claim 1, characterized in that: the fixing device further includes:

the positioning rod at the bottom of the baffle is inserted into the positioning hole at the top of the inner plate, and the bottom of the baffle is connected with the bottom of the groove on the side surface of the inner plate through a spring;

the outer end of the cross rod is provided with a rotating plate, the outer side of the rotating plate is provided with a plurality of uniformly arranged lugs, and the cross rod penetrates through the front side of the box body and is arranged in the inner groove.

7. A storage tank for positioning protection of hydraulic engineering for aeronautical use according to claim 1, characterized in that: the fixing device further includes:

the push plate is arranged at the outer end of the cross rod and is rotatably arranged on the side surface of the inner plate;

the bottom of the fixing plate is provided with a convex block, the fixing plate is installed at the top of one side of the inner groove through a spring, and the convex block at the bottom of the fixing plate is inserted at the outer side of the rotating plate at the outer end of the cross rod.

8. A storage tank for positioning protection of hydraulic engineering for aeronautical use according to claim 1, characterized in that: the support mechanism includes:

two sides of the bottom groove penetrate through the bottom of the side surface of the box body; the bottom plate, the outer end top of bottom plate is equipped with the recess, and the bottom plate passes through the spring mounting in the inside of kerve.

9. A storage tank for positioning protection of hydraulic engineering for aeronautical use according to claim 1, characterized in that: the support mechanism further includes:

the transverse plate is arranged on the outer side of the bottom groove through a spring; the pull plate is arranged at the top of the transverse plate and is slidably arranged in the groove at the top of the outer end of the bottom plate;

the side plate is of a rectangular plate structure and is arranged at the outer end of the bottom plate.

10. A storage tank for positioning protection of hydraulic engineering for aeronautical use according to claim 1, characterized in that: the support mechanism further includes:

the vertical plate is arranged at the top of the side plate through a rotating shaft; the vertical groove is arranged on the side surface of the edge position of the side surface of the box body; the bottom of connecting plate is connected with the top of riser through the pivot, and the both ends slidable mounting of connecting plate is in the inside of erecting the groove.