Summary of the invention
The utility model proposes based on the above-mentioned defect of prior art just, and the technical problems to be solved in the utility model comprises, and provides a kind of alloy plastic crane span structure, weight reduction can be realized, improve intensity, convenient transport, convenient for assembly in one or more.
In order to solve the problem, provide a kind of alloy plastic crane span structure according to an aspect of the present utility model, described alloy plastic crane span structure comprises top board, riser, base plate, connecting plate, and described top board, riser, base plate, connecting plate are connected by the mode of splicing; Wherein said riser comprises the first riser and the second riser that are symmetrical set; Each riser includes top, vertical portion and bottom; Above described top comprises and below, be provided with depth direction on above described and be vertical direction and the first groove of opening upwards, be provided with depth direction on below described and be vertical direction and the second groove that Open Side Down, described second groove is in the both ends open of described crane span structure length direction; Described vertical portion connects described upper and lower between described upper and lower, and described vertical portion comprises vertical plate, lower vertical plate, rib first level board, rib vertical plate and rib second level board; Described rib first level is connected with described upper vertical plate with plate, and described rib second level board is connected with described lower vertical plate, and described rib first level board is connected with rib second level board by described rib vertical plate; The described bottom of described riser is provided with the 3rd opening up groove that depth direction is vertical direction, and described 3rd groove is in the both ends open of described crane span structure length direction; It is inner towards crane span structure that described bottom is also provided with opening direction, and the 4th groove of two side inner extension from described vertical portion to crane span structure; Described top board is used for from crane span structure described in top seal, and described top board comprises end face, bottom surface and raised line, the bottom surface of described top board is formed with raised line and is formed on described bottom surface, and described raised line is for combining with described first groove on described riser; Described base plate, between described first riser and the second riser, the two ends of described base plate are placed in opening the 4th groove inwardly of described first riser and the second riser bottom respectively, described connecting plate, between described second groove and the 3rd groove, its end is contained in described second and the 3rd in groove respectively, can in the guiding lower slider at described second groove and the 3rd groove.
Preferably, described end face comprises horizontal plane and inclined plane, and described inclined plane is formed at the both sides of the edge of described top board, and described horizontal plane is formed between two inclined planes.
Preferably, the described of described top extends along the top of described vertical portion to inside and outside both direction above simultaneously, and described first groove type is formed in described outward extending part above.
Preferably, described top board, riser, base plate and connecting plate are structure as a whole respectively.
Preferably, the distance of described raised line and described top board bottom surface side is 5mm.
Preferably, the junction of described base plate and described riser is provided with adhesive.
Preferably, described bottom is provided with opening groove inwardly, the described two side of described 3rd groove is upper side wall and lower wall, described upper side wall and lower wall are provided with multiple sawtooth, the top and bottom at the two ends of described riser are provided with the sawtooth corresponding with the multiple sawtooth in described groove.
The utility model can significantly improve the intensity of alloy plastic crane span structure by above-mentioned crane span structure, simultaneously its convenient disassembly, is convenient to assembling and transport, thus possesses outstanding substantive distinguishing features with significant progressive.
In order to better the utility model is described, below in conjunction with accompanying drawing, embodiment of the present utility model is described further.It is to be noted that following embodiment is only the preferred technical scheme of the utility model, it can not be interpreted as the restriction to the utility model protection range.
As shown in Figure 1, the crane span structure of the utility model embodiment comprises: top board 1, riser 2, base plate 3, connecting plate 4.
As shown in Figure 2, described top board 1 is for from crane span structure described in top seal, and to protect the circuit in described crane span structure, described top board comprises end face 11, bottom surface 12, raised line 14.Wherein said end face 11 is positioned at the top of described top board, and comprise horizontal plane and inclined plane 13, described inclined plane is formed at the both sides of the edge of described top board, and described horizontal plane is formed between two inclined planes.Arrange top surface structure that above-mentioned horizontal plane and inclined plane combine conveniently to guide described liquid when running into rainfall or other has liquid to be formed on described top board and flow to top board both sides, thus avoid crane span structure inside flooded thus damage the circuit of inside.
The bottom surface 12 of described top board is preferably formed as horizontal plane, so that fit with the supporting surface of riser, thus plays the effect of sealing crane span structure inside.Further, the bottom surface of described top board is formed with raised line 14, described raised line 14 is for combining with first group of groove 212 on described riser 2, specifically described combination comprises and to be placed in by described raised line in described groove thus to limit the motion of described top board on crane span structure Width, thus avoids the accidental of top board to cause the circuit in crane span structure to expose.Preferably, described raised line is arranged at the both sides of described top board bottom surface; Further, the position of described raised line distance and described top board bottom surface side 5mm, the side that this position is arranged due to distance top board is nearer, therefore be conducive to formation stable structure, thus ensure the laminating degree that the side of described top board does not produce deformation and keeps first group of groove structure on itself and riser.Closer, described raised line is arranged perpendicular to described bottom surface, facilitates installation and the dismounting of top board like this, so that protect the cable in described crane span structure when closed, can open described crane span structure again when needs keep in repair cable convenient and strength-savingly.In addition, described raised line can also be set to run through the length direction of described top board thus can also play the effect of reinforcement, reinforces described top board.
As shown in Figure 1, described riser comprises the first riser and the second riser that are symmetrical set.Described riser is for accepting described top board, base plate and connecting plate.
As shown in Figure 3, for described first riser, described first riser 21 comprises top 21, vertical portion 22, bottom 23.Preferably, described top, vertical portion and described portion integral are shaping.
Described top comprises 211 above, and described is the plane of level above, is provided with the first groove 212 that length direction is consistent with described crane span structure length direction, depth direction is vertical direction, the raised line 14 of described first groove 212 on accommodating described top board.Preferably, described first groove is positioned at the outside of described vertical portion thus does not affect the space of crane span structure inside.Below described top also comprises, the described part be positioned at outside described vertical portion is below formed with length direction second groove 213 consistent with the length direction of described crane span structure, and the opening direction of described second groove is downward.Described second groove is for holding connecting plate 4, and further preferably, the part be positioned at below described top outside described second groove is formed as thick inclined-plane 214, thin inner side, outside.Described inclined-plane enters described second groove for guiding described connecting plate.
The bottom 23 of described riser comprise the 3rd groove 232 be positioned at outside described vertical portion above, the length direction of described 3rd groove 232 is identical with the length direction of described crane span structure, and depth direction is vertical direction.Described 3rd groove 232 is relative with the second groove 213, thus is placed between described 3rd groove and the second groove by described connecting plate 4.
Further preferably, the inner side cell wall of described second groove 213 and the 3rd groove 232 is formed by the vertical portion of described riser, can save the material that crane span structure uses like this and can ensure to have enough intensity simultaneously.
The bottom of described riser is also formed with the 4th groove 231, described 4th groove 231 is positioned at the inner side of described vertical portion, the length direction of described 4th groove 231 is identical with the length direction of described crane span structure, and its depth direction is horizontal direction, and opening is towards the inside of described crane span structure.Due to the symmetrical configuration of the first riser and the second riser, described 4th groove therefore on described first riser and the second riser is oppositely arranged, and holds base plate 3 two ends of described crane span structure respectively.Material is thus formed the framework of described crane span structure.
Further preferably, base plate 3 thickness of described crane span structure is identical with the width of described 4th groove 231, and described base plate and described 4th groove are fixed by gluing, this makes it possible to keep the firm of described crane span structure.
Further, in order to ensure the bond strength of described base plate and described 4th groove, the cell wall of described 4th groove is formed with multiple sawtooth, the part that described base plate contacts with described sawtooth is also provided with corresponding sawtooth, very securely described riser can be combined with described base plate by the engagement of sawtooth and the fixing of adhesive, thus ensure the firm of crane span structure.Even if due to overlong time, adhesive is aging, still can ensure that described crane span structure has enough intensity by described engagement.
Also be formed with the 5th groove 233 below the described bottom of described riser, described 5th groove is relative with described 3rd groove, and opening direction is contrary, described 5th groove offer the material can saved described riser when proof strength and use.
The vertical portion 22 of described riser 2 is provided with rib 221, and the vertical portion 2 of institute's riser comprises vertical plate and lower vertical plate, and described rib comprises rib first level board, rib vertical plate and rib second level board.Described rib first level is connected with described upper vertical plate with plate, and described rib second level board is connected with described lower vertical plate, and described rib first level board is connected with rib second level board by described rib vertical plate.Can be offset the stress that the described vertical plate 22 of part bears by this reinforcement structure, thus improve the intensity of vertical plate, said structure materials are saved simultaneously, are conducive to reducing costs.There is substantive distinguishing features outstanding further and significant progress.Described riser is particularly suitable for height and uses at the crane span structure of more than 25cm.
As shown in Figure 1, another outstanding substantive distinguishing features of the present utility model and significant progressive part are the use of described connecting plate 4.Described connecting plate preferably includes two, left and right, respectively with described first riser and described second riser with the use of, connect two ends crane span structure for connecting plate.Described connecting plate comprises connecting plate vertical portion, connecting plate horizontal part, and described connecting plate vertical portion is vertical tabular, and its upper end is formed as the inclined-plane 411 of thin edge thick middle.The horizontal part of described connecting plate comprises connecting plate horizontal upper part 41 and connecting plate horizontal lower 42, and it is identical with described crane span structure that it is formed as length direction, and the raised line that bearing of trend extends outside crane span structure along horizontal direction.The two ends of two described connecting plate horizontal parts and described connecting plate vertical portion form predetermined angle 411 and predetermined angle 421 respectively so that the horizontal part of described connecting plate plays the effect that the described connecting plate that leads moves when described connecting plate slides between described two grooves and described 3rd groove.
When two described crane span structures need to fit together, the crane span structure provided by the utility model embodiment no longer needs to arrange the securing members such as screw, but can complete by inserting described connecting plate between the second groove and the 3rd groove.In addition, due to described connecting plate and described riser being provided with described inclined-plane, described 3rd groove can be fixed on by one end of first part connecting plate, on connecting plate, the inclined-plane of the bevelled one end of tool and described second groove abuts against, and makes described connecting plate by being out of shape thus entering between described second groove and the 3rd groove by giving described connecting plate force.The crane span structure of this structure is convenient in fitting operation.
Further, due in the middle of the engineering that circuit is longer, need multiple crane span structure end to end thus protect described circuit in longer length.When a certain section of crane span structure of centre needs to change, need to remove described connecting plate.Now need a kind of mode of described connecting plate for convenience detach.In order to solve above-mentioned technical barrier, creative, connecting plate of the present utility model is provided with dismounting raised line 43, described dismounting raised line is arranged on the medial surface of described connecting plate riser, described raised line extends along the length direction of described crane span structure, for inserting between described connecting plate and described riser at screwdriver, during described connecting plate, lean the head that screwdriver is stated in residence.Owing to there is seam between two adjacent crane span structures, therefore, screwdriver can be inserted by above-mentioned seam, also can offer opening at the top of described riser or bottom, with the insertion of convenient screwdriver.When screwdriver leans against on described dismounting raised line with inserting top, just can form lever, utilize leverage to be pulled down by described connecting plate easily.Further preferably, the height of described raised line is that the height of 1mm, 1mm is enough to state screwdriver against residence, and can save material.Further preferably, described dismounting raised line comprises two, and described two raised lines are arranged in parallel up and down, so that make can both be for convenience detach when inserting screwdriver from crane span structure top or bottom.Which reduce the restriction of crane span structure installation environment for dismounting.