Concrete prefabricated part shelf type tray system capable of being disassembled and assembled quickly
Technical Field
The invention belongs to the field of stacking and transporting of laminated plates, and particularly relates to a shelf type tray system for concrete prefabricated parts, which can be quickly disassembled and assembled.
Background
Along with the continuous perfection of the green building construction technology and the increase of the popularization of the market, the concrete prefabricated member is widely applied in the fields of buildings, traffic, water conservancy and the like, and the variety is as follows: prefabricated reinforced concrete composite floor slab, wallboard, stair, balcony, piping lane, air conditioner board and enclosure etc. building prefabricated product, assembled reinforced concrete structure is one of the important direction of china's building structure development, and it is favorable to the development of the building industrialization of china, improves production efficiency energy saving, development green building. Compared with a cast-in-place construction method, the assembly type construction method is more in line with the requirements of land saving, energy saving, material saving, water saving, environmental protection and the like of green construction, reduces negative effects on the environment, including noise reduction, dust prevention, environmental pollution reduction, clean transportation, site interference reduction, water, electricity, material and other resources and energy, and follows the principle of sustainable development.
The tray is used as an indispensable logistics appliance in the loading, unloading, transporting and distributing processes of the concrete prefabricated part, and is widely applied to logistics and storage industries. At present, most concrete prefabricated part manufacturing enterprises use laminated slab trays which are single-layer, and because of the limitation of relevant standards, each tray of laminated slabs can only be stacked by 6-8 slabs, a large amount of stacking fields are required. It is statistically determined that the laminated slab occupies approximately 2/3% of the finished product yard area in the construction plant. And all concrete prefabricated part manufacturing enterprises have the common problem that the part stacking site is seriously insufficient.
Part of concrete prefabricated component manufacturing enterprises develop and use the laminated plate tray with two layers, and the supporting legs of the tray with two layers and the tray with the bottom layer are welded into a whole. The upper layer and the lower layer of the tray can not be used universally and can not be used flexibly. And the supporting legs are transported to a construction site along with the bottom layer tray and cannot be disassembled to be recycled in a factory, so that the investment of enterprises is increased.
At present, trays of a plurality of enterprises are placed in a storage yard in a marking mode, and no accurate positioning device is provided; in order to meet the management requirements of enterprises, more manpower and working hours are required to be consumed to arrange materials in order, otherwise, potential safety hazards are caused, and further improvement is required.
Disclosure of Invention
In order to solve the problems, the invention discloses a shelf type tray system of concrete prefabricated parts, which can be quickly disassembled and assembled, has novel structure and convenient installation, can stack and stack, and provides reliable safety guarantee for stacking and transporting laminated plates.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a shelf type tray system of a concrete prefabricated part capable of being quickly disassembled and assembled comprises a support (tray) and supporting legs, wherein the support is of a square frame structure formed by welding H-shaped steel, front and back steel plates are arranged on two sides of the H-shaped steel at the front end and the back end of the support, two horizontal protruding studs are arranged above the front and back steel plates, a protruding stud is arranged below the front and back steel plates, the protruding studs and the protruding studs are arranged in a triangular mode, four cross-shaped guide keys are arranged below the H-shaped steel, the supporting legs are divided into four groups, each supporting leg comprises an upper locking device, a square tube and a lower locking device, the upper locking device and the lower locking device are respectively arranged above and below the square tube, each upper locking device comprises a square box I, a locking handle I, a locking steel plate I, a connecting rod I and a connecting rod II, the upper side and the outer side of the square box I are provided with openings, the first connecting rod is arranged in the horizontal long hole, two ends of the first connecting rod are connected with the first locking steel plate, the cross-shaped guide key is inserted into the pipe orifice of the square pipe, the first locking handle is arranged at an opening at the outer side, the first locking handle is communicated with the first connecting rod through the second connecting rod, the second connecting rod is arranged at the outer side below the first connecting rod, a first horizontally inward clamping hook is arranged above the first locking steel plate, the first clamping hook is matched with the protruding stud, the first clamping hook is higher than the first square box, the lower locking device comprises a second square box, a second locking steel plate, a second locking handle, a third connecting rod and a fourth connecting rod, the front end and the rear end of the second square box are provided with a first symmetrical vertical long hole, the left side and the right side of the second square box are provided with a second symmetrical vertical long hole, the third connecting rod is arranged in the first vertical long hole, two ends of the, the second clamping hook is matched with the first protruding stud, the second clamping hook is lower than the second square box, the second locking handle is arranged in the second vertical long hole, the second locking handle is communicated with the third connecting rod through the fourth connecting rod, and the fourth connecting rod is arranged on the outer side of the third connecting rod.
As an improvement of the invention, a reinforcing rod and a hanging plate are arranged inside the bracket.
As an improvement of the invention, the first locking handle comprises two auxiliary rods and a middle cross rod, and the two auxiliary rods are communicated with the first connecting rod through the second connecting rod.
As an improvement of the invention, the second locking handle is an iron plate which is vertically arranged.
As an improvement of the invention, a slimming groove is arranged on the first horizontal long hole and the first vertical long hole.
As an improvement of the invention, the surface of the square tube is provided with a reflective strip.
As an improvement of the invention, the cross-shaped guide key is formed by vertically combining two iron plates, and a chamfer is arranged below the cross-shaped guide key.
A method for installing a shelf-type tray system of concrete prefabricated parts capable of being quickly disassembled and assembled comprises the following steps:
(1) a layer of the support is horizontally placed on the ground,
(2) placing the supporting legs above the front and back steel plates, lifting the locking handle II to enable the locking steel plate II to fall down, moving the supporting legs transversely, clamping the protruding stud I with the clamping hook II transversely, pressing the locking handle II downwards to enable the locking steel plate II to lift upwards, and longitudinally locking and positioning the clamping hook II and the protruding stud I;
(3) then the second layer of support is horizontally hung above the four supporting legs, the cross-shaped guide key is inserted into the pipe orifice of the square pipe of the supporting legs for longitudinal coarse positioning,
(4) moving the locking handle I to enable the first clamping hook to transversely move to clamp the second protruding stud on the second layer of support, and transversely locking and positioning;
(5) and (5) placing the support legs of the second layer on the support of the second layer, and repeating the steps (2) - (4) to complete the construction in a circulating way.
The invention has the beneficial effects that:
the shelf type tray system of the concrete prefabricated part capable of being rapidly disassembled and assembled, which is disclosed by the invention, is novel in structure, and each layer has three locking structures:
1. the cross-shaped guide key below the bracket is inserted into the pipe orifice of the square pipe of the next layer of supporting leg to carry out longitudinal coarse positioning,
2. two groups of symmetrical clamping hooks I move inwards transversely to clamp a second protruding stud on the upper layer of the support, and transverse locking and positioning are carried out; the upper bracket is prevented from moving upwards, so that the 'instant hinge' is formed. The method has the advantages that a, the bending moment of the bottom of the upper-layer column is not transmitted to the lower-layer column, and the superposition of unfavorable bending moment of the bottom of the bottommost column is avoided; b. when the upper layer bracket is subjected to horizontal acting force, under the premise of ensuring that secondary bending moment is not transmitted, the upper layer bracket can play a role in embedding and fixing when being deformed to a certain degree, and shares column bottom bending moment; c. the internal force of the H-shaped steel is different under two working conditions of lifting and falling of the support. Due to the existence of the instant hinge, the stress of the supporting leg cannot be influenced by the internal force redistribution of the H-shaped steel beam caused by the two working conditions of lifting and falling of the supporting leg.
3. The four clamping hooks II below the square box of the supporting leg move upwards to be longitudinally locked and positioned with the protruding studs I on the bracket; and forming an embedded end, and transmitting the bending moment, the shearing force and the vertical force of the bottom of the support leg to the H-shaped steel beam of the lower-layer support.
The whole installation is convenient and fast, each layer of installation time only needs about 1 minute, and through three kinds of locking structures, the goods shelf system that makes support, landing leg, locking mechanism, cross key socket joint constitute becomes a statically indeterminate structural system, can pile up the pile up neatly, can ensure safety.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a stent according to the present invention.
Fig. 3 is a schematic view of an upper locking device according to the present invention.
Fig. 4 is a schematic view of a second square box of the lower locking device of the present invention.
FIG. 5 is a schematic view of a lower locking device according to the present invention.
List of reference numerals:
1. the support, 2, landing leg, 3, H shaped steel, 4, positive steel sheet, 5, reverse side steel sheet, 6, protruding peg one, 7, protruding peg two, 8, cross guide key, 9, upper locking device, 10, square pipe, 11, lower locking device, 12, square box one, 13, locking handle one, 14, locking steel sheet one, 15, connecting rod one, 16, connecting rod two, 17, horizontal slot hole, 18, trip one, 19, square box two, 20, locking steel sheet two, 21, locking handle two, 22, connecting rod three, 23, connecting rod four, 24, vertical slot hole one, 25, vertical slot hole two, 26, trip two, 27, stiffener, 28, hanger plate, 29, thin body recess, 30, reflection of light strip, 31, chamfer.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figures, the shelf type tray system for the concrete prefabricated parts capable of being disassembled and assembled quickly is built up layer by layer, the support 1 is placed firstly, the four supporting legs 2 are placed secondly, the support 1 is placed secondly, the support 1 and the supporting legs 2 are tightly connected together by a locking mechanism in the period, the installation is convenient and quick, the installation time of each layer is only about 1 minute, and the stacking can be carried out through three locking structures, so that the reliable safety guarantee is provided for stacking and transporting the stacked plates.
The invention relates to a shelf type tray system of a concrete prefabricated part capable of being quickly disassembled and assembled, which comprises a support 1 and supporting legs 2, wherein the support 1 is of a square frame structure formed by welding H-shaped steel 3, a front steel plate 4 and a back steel plate 5 are arranged on two sides of the H-shaped steel at the front end and the back end of the support 1, two horizontal protruding studs 6 are arranged above the front steel plate 4 and the back steel plate 5, a protruding stud 7 is arranged below the front steel plate 4 and the back steel plate 5, the protruding studs 6 and the protruding studs 7 are arranged in a triangular shape, four cross-shaped guide keys 8 are arranged below the H-shaped steel 3, the supporting legs 2 are four or more, each supporting leg 2 comprises an upper locking device 9, a square tube 10 and a lower locking device 11, the upper locking device 9 and the lower locking device 11 are respectively arranged above and below the square tube 10, the upper locking device 9 comprises a square box 12, a locking handle 13 and a locking, The locking device comprises a first connecting rod 15 and a second connecting rod 16, wherein the upper part and the outer side of the first square box 12 are provided with openings, the front end and the rear end of the first square box 12 are provided with horizontal long holes 17, the first connecting rod 15 is arranged in the horizontal long holes 17, the two ends of the first connecting rod 15 are connected with a first locking steel plate 14, a cross-shaped guide key 8 is inserted into the pipe orifice of the square pipe 10, a first locking handle 13 is arranged at the opening at the outer side, the first locking handle 13 is communicated with the first connecting rod 15 through the second connecting rod 16, the second connecting rod 16 is arranged at the outer side below the first connecting rod 15, a first horizontally inward clamping hook 18 is arranged above the first locking steel plate 14, the first clamping hook 18 is matched with a second protruding bolt 7, the first clamping hook 18 is higher than the first square box 12, the lower locking device 11 comprises a second square box 19, a second locking steel plate 20, a second locking handle 21, a third connecting, the two left and right sides of square box are equipped with the vertical slot hole two 25 of symmetry, three 22 settings of connecting rod are in vertical slot hole one 24, and two 20 locking steel sheet are connected at three 22 both ends of connecting rod, and two 20 below locking steel sheet are equipped with two 26 of the inward trip of level, two 26 trip are supporting with protruding peg 6, two 26 highly be less than two height of square box 19 of trip, two 21 settings of locking handle are in vertical slot hole two 25, and two 21 settings of locking handle are through four 23 intercommunication connecting rods three 22 of connecting rod, and four 23 settings of connecting rod are in the outside of three 22 of connecting rod.
When the device is installed, a layer of support 1 is horizontally placed on the ground, the four cross-shaped guide keys 8 are grounded, the supporting legs are placed above the front steel plate and the back steel plate, the locking handle II 21 is lifted up to enable the locking steel plate II 20 to fall down, the supporting legs are transversely moved, the clamping hook II 26 is transversely clamped on the protruding stud I6, then the locking handle II 21 is pressed down to enable the locking steel plate II 20 to be lifted up (the connecting rod IV 23 is fixed), and the clamping hook II 26 and the protruding stud I6 are longitudinally locked and positioned (four supporting legs are used for one layer); the second layer of support 1 is horizontally hung above the four support legs 2, and the cross-shaped guide key 8 is inserted into the pipe orifice of the support leg square pipe 10 for longitudinal coarse positioning; moving the first locking handle 13 (the second connecting rod 16 is fixed), so that the first clamping hook 18 moves transversely to clamp the second raised stud 7 on the second layer of support, and carrying out transverse locking and positioning; and (5) placing the support legs of the second layer on the support of the second layer, and repeating the steps (2) - (4) to complete the construction in a circulating way.
That is, the bracket 1 and the leg 2 are connected into a whole, and there are three kinds of locking structures:
1. the cross guide key 8 of support below inserts and carries out vertical coarse positioning in the pipe orifice of next one deck landing leg side pipe 10, and concrete operation is with the support hoist, falls down behind the alignment position, and the cross guide key 8 of support below is formed by two iron plate vertical welding, and cross guide key below is equipped with the chamfer, is convenient for insert fast side's pipe orifice in, and this step can let square pipe 10 be in vertical state, can not askew the burying potential safety hazard in the east down west.
2. Two groups of symmetrical clamping hooks I18 move inwards transversely to clamp the convex stud II 7 on the upper layer of the support, and transverse locking and positioning are carried out; it should be noted that: the first clamping hooks 18 on the four supporting legs 2 have two directions, as shown in the figure I, the two left clamping hooks are oppositely arranged right, the two left clamping hooks move leftwards to clamp the second protruding studs, the two right clamping hooks move rightwards to clamp the second protruding studs, and the whole body is transversely tightened to form an instant hinge. It has the functions of
a. The bending moment of the bottom of the upper-layer column is ensured not to be transmitted to the lower-layer column, and the superposition of unfavorable bending moment of the bottom of the bottommost column is avoided;
b. when the upper layer bracket is subjected to horizontal acting force, under the premise of ensuring that secondary bending moment is not transmitted, the upper layer bracket can play a role in embedding and fixing when being deformed to a certain degree, and shares column bottom bending moment;
c. the internal force of the H-shaped steel is different under two working conditions of lifting and falling of the support. Due to the existence of the instant hinge, the stress of the supporting leg cannot be influenced by the internal force redistribution of the H-shaped steel beam caused by the two working conditions of lifting and falling of the supporting leg.
3. Pressing the second locking handle 21 downwards to lift the second locking steel plate 20 upwards, and moving the second clamping hook 26 upwards to be longitudinally locked and positioned with the first protruding stud 6; the protruding stud 6 is transversely blocked by the second clamping hook 26 in the front, and the second clamping hook can be easily inserted into the supporting leg, but the stress is large when the second clamping hook is longitudinally lifted, so that the supporting leg 2 and the support form a whole (longitudinally), an embedded end is formed, and the bending moment, the shearing force and the vertical force of the bottom of the supporting leg are transmitted to the H-shaped steel beam of the lower-layer support.
The first clamping hook 18 and the second clamping hook 26 both have certain radians, are suitable for clamping the round heads of connecting rods or protruding studs, cannot be easily loosened, and are high in safety.
According to the invention, the horizontal long hole 17 and the vertical long hole 24 are provided with the slimming grooves 29, as shown in fig. 4, the distance between the two slimming grooves 29 is slightly smaller than the diameters of the connecting rod I15 and the connecting rod III 22, and under the action of the handle, the strokes of the connecting rod I15 and the connecting rod III 22 just exceed the slimming grooves 29, so that the locking effect is realized.
According to the invention, the reinforcing rods 27 are arranged on the inner framework of the support 1, so that the strength is increased, the service life is prolonged, and in addition, the hanging plate 28 is arranged on the support 1, so that the lifting is convenient.
The first locking handle 13 comprises two auxiliary rods and a middle cross rod, an operator pulls the cross rod to move up and down, and the two auxiliary rods are communicated with a first connecting rod 15 through a second connecting rod 16.
The second locking handle 21 is a vertically arranged iron plate and moves up and down in the second vertical long hole 25 to drive the second locking steel plate 20 to move up and down.
The surface of the square tube 10 is provided with the light reflecting strips, so that the light reflecting reminding effect is achieved when the light is weak, the light reflecting reminding effect is also striking at ordinary times, whether the supporting legs are inclined or not can be visually seen, and the safety can be improved.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.