CN111572430B

CN111572430B - Bidirectional hydraulic movable floor

Info

Publication number: CN111572430B
Application number: CN202010500060.5A
Authority: CN
Inventors: 张健; 邓云凌; 丁永峰
Original assignee: Meixinda Xinzhizao Huzhou Technology Co ltd
Current assignee: Meixinda Xinzhizao Huzhou Technology Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-09-14
Anticipated expiration: 2040-06-04
Also published as: CN111572430A

Abstract

The invention discloses a bidirectional hydraulic movable floor, which comprises a plurality of laths, wherein the laths are in seamless slidable connection, a driving device capable of driving the laths to move back and forth along the length direction is fixed on the lower surfaces of the laths, the driving device comprises a bidirectional pushing mechanism group, the bidirectional pushing mechanism group consists of N bidirectional pushing mechanisms, and the N laths are driven to perform bidirectional movement as a group, so that automatic horizontal loading and unloading of goods can be realized, the difficulty and the complexity of loading and unloading the goods are greatly reduced, the labor cost is saved, the complexity and the difficulty that the goods in a carriage need to be manually transported to the interior of the carriage for stacking and loading and the goods in the carriage need to be manually transported to the carriage port for unloading when the existing carriage is loaded are solved, and the limitation that the existing hydraulic movable floor can only transport large goods is solved through the seamless connection between the laths and the laths, the application field is wider, the practicability is stronger, the popularization is more facilitated, and the market prospect is large.

Description

Bidirectional hydraulic movable floor

Technical Field

The invention relates to the technical field of transportation equipment, in particular to a bidirectional hydraulic movable floor.

Background

At present, when some trucks such as a truck load the goods, according to the type, state and shape of the goods, mechanical loading and unloading or manual loading and unloading are adopted, such as a dump truck, for some gravel goods, the goods can be unloaded by using the dump truck when unloading, the dump truck not only has the condition that the loading volume is not large enough, but also needs to be very careful when loading and unloading for some goods requiring special loading and unloading, only manual loading and unloading are realized, Chinese patent publication (announcement) No. CN2818223, patent name is hydraulic movable floor loading and unloading mechanism, although patent documents disclose that several groups of floor strips are driven by hydraulic oil cylinders to move, the goods can be horizontally loaded and unloaded under the action of gravity and friction force, the goods can only realize the movement in one direction, and can not realize the bidirectional movement, namely, the loading or unloading can only be realized on one transport vehicle, the loading and unloading can not be realized simultaneously, the problem of loading or unloading can only be solved, and the problem of loading or unloading can not be completely solved, most importantly, due to the limitation of the strip shape, gaps exist between the strips, and the strips move relatively, even if tiny dust in the gaps is difficult to enter, small-particle goods still can enter the gaps in the relative movement process, so that the application range is very limited, the clamp can only be suitable for large goods, the clamp is not suitable for small-particle goods such as grains, sand stones and coffee beans, the small-particle goods can enter the gaps along with the relative movement between the strips, the movement of the strips is influenced, and when the large goods are transported, tiny particles such as dust and the like can enter the gaps for a long time, the clamp is not easy to clean and clean, and the hydraulic movable floor is easy to damage, the maintenance rate is high, so the transportation equipment which is convenient to assemble and disassemble, has wide applicable objects and is waterproof and favorable for popularization is lacked.

Disclosure of Invention

The present invention is directed to a bidirectional hydraulic raised floor, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

a bidirectional hydraulic movable floor comprises a support, a plurality of slats are placed on the support side by side in parallel, the slats are in seamless sliding connection, a driving device capable of driving the slats to move back and forth along the length direction is fixed on the lower surfaces of the slats, the driving device comprises a bidirectional pushing mechanism group, the bidirectional pushing mechanism group comprises N bidirectional pushing mechanisms, N is an integer larger than 3, the bidirectional pushing mechanism comprises a movable rod capable of moving in a bidirectional mode, a first moving support and a second moving support are respectively fixed on two sides of the movable rod, the first moving support and the second moving support are arranged perpendicular to the moving direction of the movable rod, a first connecting block is fixed on the first moving support, and the distance between the N first connecting blocks arranged on the first moving support in sequence is the width size of the slats, and a second connecting block is fixed on the second movable support, the first connecting block and the second connecting block on the same two-way pushing mechanism are symmetrical in position, and the lower surface of the batten is fixed on the first connecting block and the second connecting block.

Preferably, the lath comprises a lath body, guide grooves and guide strips extending along the length direction of the lath body are respectively formed at the edges of two sides of the upper surface of the lath body, and the guide grooves are matched with the guide strips on the adjacent laths in structural shape and size and are in seamless sliding connection.

Preferably, the guide groove includes a linear crest portion, one end of the crest portion is formed with a first transition portion that connects the crest portion and the slat body in a transition manner, the other end of the crest portion is formed with a second transition portion that connects the crest portion and the first attachment portion in a transition manner, the first attachment portion is an arc segment that bends toward the first transition portion, and the first attachment portion is located above the outer side of the slat body.

Preferably, the first transition portion and the second transition portion are perpendicular to a straight line of the crest portion, a first transition protection portion is formed between the first transition portion and the crest portion, a second transition protection portion is formed between the second transition portion and the crest portion, the first transition protection portion and the second transition protection portion are both arcs, the circle center of each arc is located in the guide groove, and the vertical distance between the first attaching portion and the batten body is 0.5 mm-1 mm.

Preferably, the conducting bar is rectangular parallelepiped and has a width of D, a second bonding portion is formed at one end of the first transition portion, which is far away from the crest portion, the height of the second bonding portion is 1/3-1/2 of the height of the first transition portion, and the horizontal distance between the second bonding portion and the first bonding portion is equal to the width of D.

Preferably, the upper surface of the guide bar is symmetrically provided with 3 or more than 3 ball grooves, the cross sections of the ball grooves are arcs with central angles larger than 180 degrees and smaller than 320 degrees, balls capable of rolling in the ball grooves are placed in the ball grooves, and the top ends of the balls are higher than the upper surface of the guide bar.

Preferably, a support portion extending in a longitudinal direction of the slat body is formed on an upper surface of the slat body between the guide groove and the guide bar.

Preferably, the cross section of the support part is trapezoidal, and the upper surface of the support part is flush with the upper surface of the guide groove.

Preferably, an inner cover is fixed to the support on a side close to the second movable support, a tail cover is fixed to the support on a side close to the first movable support, and the upper surface of the slidable slat is always attached to the tail cover and the upper surface of the inner cover.

Preferably, the bidirectional pushing mechanism may be a double-acting hydraulic cylinder.

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

1. the utility model provides a two-way hydraulic pressure raised floor, its is including a plurality of laths, but be seamless sliding connection between the lath, lath lower fixed surface has and drives the lath is along its length direction round trip movement's drive arrangement, drive arrangement is including two-way pushing mechanism group, two-way pushing mechanism group comprises a N two-way pushing mechanism, drives the lath uses N to carry out two-way motion as a set of to can realize the automatic level loading and the unloading of goods, greatly reduced the degree of difficulty and the loaded down with trivial details degree of loading and unloading goods, practiced thrift the cost of labor, when having solved current carriage loading, need artifical with the goods transport to the carriage inside stack the loading and need the artifical loaded down with the goods transport of the inside goods in carriage to the carriage mouth loaded down with the degree of difficulty.

2. The invention provides a bidirectional hydraulic movable floor, wherein guide grooves and guide strips are formed in a strip body, so that seamless connection between strips is realized, the strips can slide relative to each other under the driving of a driving device, the limitation that the existing hydraulic movable floor can only transport large goods is solved, the driving device is sealed, the service life of the driving device is prolonged, and meanwhile, the problem that gaps between the strips are blocked by granular goods or dust to influence relative movement between the strips is avoided.

3. A tail cover and an inner cover are symmetrically fixed at two ends of a support in the length direction of a lath, when the lath horizontally moves under the driving of a driving device, the lower surface of the lath is always attached to the upper surfaces of the tail cover and the inner cover, so that internal sealing is achieved, small-particle goods of the lath are prevented from falling to the lower portion of the lath from the upper surface of the lath in the moving process, the service life of the driving device is influenced, meanwhile, the inclined structure of the tail cover can enable the goods to be unloaded along the inclined angle of the tail cover in the unloading process, and the impact force of the falling of the goods is relieved.

Drawings

FIG. 1 is a perspective view of a bi-directional hydraulic raised floor in an unmoved state;

FIG. 2 is a schematic structural diagram of a driving device of a bidirectional hydraulic movable floor;

FIG. 3 is a schematic view of the operation of the bi-directional pushing mechanism;

FIG. 4 is a perspective view of the slat;

FIG. 5 is a schematic cross-sectional view of a slat;

FIG. 6 is a perspective view of a bi-directional hydraulic raised floor in a loaded state;

FIG. 7 is a schematic view of a bi-directional hydraulic raised floor in an initial state;

FIG. 8 is a schematic view of a bi-directional hydraulic raised floor in a loaded state;

FIG. 9 is a second schematic view of a bi-directional hydraulic raised floor in a loaded state;

fig. 10 is a schematic view of a bi-directional hydraulic raised floor in an unladen state.

In the figure: the double-direction pushing mechanism comprises a lath 1, a lath body 11, a guide groove 12, a crest part 121, a first transition part 122, a first attaching part 123, a second transition part 124, a first transition protection part 125, a second transition protection part 126, a second attaching part 127, a guide strip 13, a ball 132, a supporting part 14, a dovetail groove 15, a bracket 4, a double-direction pushing mechanism 5, a first moving bracket 6, a first connecting block 61, a second moving bracket 7, a second connecting block 71, a cross beam 9 and a supporting cross beam 91.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

In the following description, for purposes of explanation, specific details are set forth in order to provide a thorough understanding of the present invention. It is apparent that the practice of the invention is not limited to the specific details set forth herein as are known to those of skill in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to the detailed description and should not be construed as limited to the embodiments set forth herein.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, as the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. When the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like as used herein are for purposes of illustration only and are not limiting.

Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that references to "longitudinal" herein are to be understood as the length of the container; "transverse" is to be understood as the width direction of the container.

Referring to fig. 1 to 10, in an embodiment of the present invention, a bidirectional hydraulic raised floor includes a bracket 4, where the bracket 4 is fixed on a floor of a carriage, a plurality of slats 1 are placed on the bracket 4 in parallel side by side, the slats 1 are in seamless sliding connection, and the number of the slats 1 matches with the width of the floor of the carriage. The lower surface of the lath 1 is fixed with a driving device capable of driving the lath 1 to move back and forth along the length direction of the lath, the driving device comprises a bidirectional pushing mechanism group 5, the bidirectional pushing mechanism group 5 is composed of N bidirectional pushing mechanisms, N is an integer greater than 3, the bidirectional pushing mechanism comprises a movable rod capable of moving bidirectionally, a first moving support 6 and a second moving support 7 are respectively fixed on two sides of the movable rod, the first moving support 6 and the second moving support 7 are arranged perpendicular to the moving direction of the movable rod, a first connecting block 61 is fixed on the first moving support 6, the distance between the N first connecting blocks 61 on the first moving support 6 which are sequentially arranged is the width size of the lath 1, a second connecting block 71 is fixed on the second moving support 7, and the positions of the first connecting blocks 61 and the second connecting blocks 71 on the same bidirectional pushing mechanism are symmetrical, the lower surface of the slat 1 is fixed to the first connecting block 61 and the second connecting block 71.

Specifically, the two-way pushing mechanism 5 may be a two-way hydraulic cylinder, which is a conventional technology in the art and therefore needs no additional description, and performs two-way motion by hydraulic acting force, the working principle diagram is shown in fig. 3 and 4, the two-way hydraulic cylinder is controlled by a hydraulic control valve block, and meanwhile, a high-pressure filter is fixed on the two-way hydraulic cylinder for preventing contaminants from entering an oil path system, a cylinder barrel of the hydraulic cylinder is fixed on the bracket 4, beams 9 are symmetrically fixed on the bracket 4 on two sides of the driving device, a supporting beam 91 is formed on the lower surface of each beam 9, a through hole corresponding to the position of a piston rod is formed on each supporting beam 91, the through hole is used for supporting the piston rod, and the piston rod can move in the through hole in a telescopic manner. The lower surface of the strip body 11 is provided with a dovetail groove 15, the upper surface of the cross beam 9 is formed with a plurality of dovetail protrusions matched with the dovetail grooves 15, the strip 1 is clamped on the dovetail protrusions, the dovetail protrusions are used for supporting the strip 1, and meanwhile, the position of the strip 1 cannot deviate in the moving process under the action of the driving device.

Specifically, the slat 1 includes a slat body 11, a guide groove 12 and a guide bar 13 extending along a length direction of the slat body 11 are respectively formed at two side edges of an upper surface of the slat body 11, and the guide groove 12 is matched with the guide bar 13 on the slat 1 adjacent thereto in terms of structural shape and size, and is in seamless sliding connection.

Specifically, the guide groove 12 includes a peak portion 121 shaped like a Chinese character 'yi', one end of the peak portion 121 is formed with a first transition portion 122 that connects the peak portion 121 and the slat body 11 in a transition manner, the other end of the peak portion 121 is formed with a second transition portion 124 that connects the peak portion 121 and a first attaching portion 123 in a transition manner, the first attaching portion 123 is an arc segment that is curved toward the first transition portion 122, and the first attaching portion 123 is located above the outer side of the slat body 11.

Specifically, the first transition portion 122 and the second transition portion 124 are straight lines perpendicular to the crest portion 121, a first transition protection portion 125 is formed between the first transition portion 122 and the crest portion 121, a second transition protection portion 126 is formed between the second transition portion 124 and the crest portion 121, the first transition protection portion 125 and the second transition protection portion 126 are both arcs, and the circle center of each arc is located in the guide groove 12, that is, two ends of the crest portion 122 of the guide groove 12 are arc-shaped chamfer structures, so that the transported goods can be protected.

Specifically, the vertical distance between the first attaching portion 123 and the slat body 11 is 0.5mm to 1mm, which not only prevents fine goods from entering between the first attaching portion 123 and the slat body 11, but also prevents the first attaching portion 123 and the slat body 11 from being worn away by friction when the slats 1 slide relative to each other.

Specifically, conducting bar 13 is the cuboid form, and its width is D, the one end of keeping away from crest portion 121 on the first transition portion 122 is formed with second laminating portion 127, the height of second laminating portion 127 is 1/3~1/2 of first transition portion 122 height, second laminating portion 127 with horizontal interval between the first laminating portion 123 is equal with width D, thereby guarantees be seamless slidable connection between guide slot 12 and conducting bar 13, and has reduced the area of contact between conducting bar 13 and the guide slot 12, thereby has reduced the resistance of friction.

Specifically, 3 or more than 3 ball grooves are seted up to gib 13 upper surface symmetry, the cross section in ball groove is greater than 180 and be less than 320 pitch arc for the central angle, ball inslot has placed can be in ball inslot rolling ball 132, ball 132's top is higher than gib 13's upper surface to can enough realize gib 13 and slide frictional force greatly reduced when in guide slot 12, do benefit to gib 13 in slide in guide slot 12, ball 132 can play the support simultaneously guide slot 12's effect prevents that it from taking place to deform under the extrusion of heavy object.

Specifically, the supporting portion 14 extending along the length direction of the slat body 11 is formed on the upper surface of the slat body 11 between the guide groove 12 and the guide strip 13, the cross section of the supporting portion 14 is trapezoidal, the upper surface of the supporting portion 14 is flush with the upper surface of the guide groove 12, the supporting portion 14 can play a role in supporting, pressure of transported goods on the guide groove 12 and the guide strip 13 is relieved, deformation of the guide groove 12 and the guide strip 13 is prevented, and meanwhile, the supporting portion 14, the guide groove 12 and the guide strip 13 enable the cross section of the slat body 11 to be in a concave-convex wavy line shape, so that strength of the slat can be increased, assembly deformation is reduced, cleaning is facilitated, and the anti-slip function of the shipped goods can be achieved.

Specifically, a tail cover 8 and an inner cover 10 are respectively fixed on two sides of the support 4 in the length direction of the slat 11, the tail cover 8 is located near the tail of the carriage, the inner cover 10 is located near the inside of the carriage, the upper surface of the tail cover 8 and the upper surface of the inner cover 10 and the lower surface of the slat 1 are always in a fit state, so that in the moving process of the slat 11, a small-volume cargo cannot always fall from the slat 1 into the driving device, the driving device is in a sealed state, the driving device is protected, the service life of the driving device is prolonged, the longitudinal section of the tail cover 8 is in a right trapezoid shape, the inclined waist edge of the tail cover is located on one side far away from the driving device, the contact area between the slat 11 and the tail cover 8 is small due to the structure of the right trapezoid shape, and the friction force of the slat 11 is small in the moving process, the area of the lower bottom surface of the inner cover is large, so that the supporting force of the tail cover 8 is large, the inclined waist edge of the inner cover can enable goods to slide down along the inclined angle of the waist edge, the impact force of the falling of the goods is reduced, the longitudinal section of the inner cover 10 is in a right trapezoid shape, the inclined waist edge of the inner cover is located on one side close to the driving device, the contact area of the lath 11 and the inner cover 10 is small due to the structure of the right trapezoid shape, the friction force of the lath 11 in the moving process is small, the area of the lower bottom surface of the inner cover is large, so that the supporting force of the inner cover 10 is large, the right-angled waist edge of the inner cover is in a fit state with the inner wall of a carriage, and therefore the goods with small size cannot fall down from the edge end of the lath 1 in the loading process. One aspect of the position of the slats and the inner lid 10 that move during a particular loading process is shown in figure 6.

Specific example 1: when N is 3, the slats 1 are moved in groups of 3, each group of slats 1 being designated in turn by a, b and c, the second mobile carriage 7 is indicated in turn by a, B and C, the first mobile carriage 6 is indicated in succession a1, B1 and C1, the bidirectional pushing mechanism 5 can be a double-acting hydraulic cylinder which is controlled by a hydraulic control valve block, the distance dimension of the piston rod of the hydraulic cylinder moving towards one direction is H, the shortest distance between the second moving bracket 7 and the cross beam 9 is H2, the shortest distance between the first movable bracket 6 and the cross beam 9 is H3, the size of H2 is larger than that of H, and the size of H3 is larger than that of H, and the initial state of the bidirectional hydraulic movable floor is shown in fig. 7.

When the goods need to be loaded, the first step: the hydraulic control valve block controls piston rods of 3 double-acting hydraulic cylinders to simultaneously move towards the direction of the inner cover 10 to move towards the direction H, at the moment, the piston rods drive all the laths 1 to move towards the direction H of the inner cover 10, and goods placed on the bidirectional hydraulic movable floor of the invention move for the distance H along with the movement of the laths 1 due to the action of gravity and friction force (although the laths 1 move, the goods move for the distance H when the goods are still on the laths 1, and the goods also move for the distance H relatively), and the movement state is shown in figure 8; the second step is that: the hydraulic control valve block controls the piston rod of the hydraulic cylinder fixed with the second moving bracket 7 with the mark A to move H towards the direction of the tail cover 8, at the same time, the second moving bracket 7 with the mark A moves H towards the direction of the tail cover 8 under the driving of the hydraulic cylinder, at the same time, the first moving bracket 6 with the mark A1 is fixed at the other end of the moving piston rod, so the first moving bracket 6 with the mark A1 moves H towards the direction of the tail cover 8, at the same time, all the laths (namely the lath 1 with the mark a) fixed on the second moving bracket 7 with the mark A1 and the first moving bracket 6 with the mark A1 move H towards the direction of the tail cover 8, at the same time, because the goods on the laths 1 are acted by gravity and friction force, the friction force generated by the lath 1 with the mark a at the moment is not enough to drive the goods to move, and the position of the goods remains still, the motion state at this time is shown in fig. 9; the third step: the hydraulic control valve block controls a piston rod of a hydraulic cylinder fixed with a second movable support 7 with the reference number B to move for a distance H towards the direction of the tail cover 8, the principle is the same as that of the second step, at the moment, the batten 1 with the reference number B moves for the distance H towards the direction of the tail cover 8, the friction force generated by the batten 1 with the reference number B is not enough to drive goods to move, and the position of the goods remains still; the fourth step: the hydraulic control valve block controls a piston rod of a hydraulic cylinder fixed with a second movable support 7 with the reference number C to move H to the direction of the tail cover 8, the principle is the same as that of the second step, at the moment, the batten 1 with the reference number C moves H to the direction of the tail cover 8, the friction force generated by the batten 1 with the reference number C is not enough to drive the goods to move, the position of the goods still keeps still, namely, the state is that the two-way hydraulic movable floor of the invention returns to the initial state, but the goods placed on the two-way movable floor of the invention move H to the direction of the inner cover 10 on the two-way movable floor, and the first step to the fourth step are repeated until the goods move to the inside of the carriage to stop moving, and the goods loading is finished.

When unloading is needed, the working principle of the unloading device is the same as that of loading, and the first step is as follows: the hydraulic control valve block controls piston rods of 3 double-acting hydraulic cylinders to simultaneously move towards the direction of the tail cover 8 by H, all the laths 1 move towards the direction of the tail cover 8 at the moment, and goods placed on the bidirectional hydraulic movable floor of the invention move towards the direction of the tail cover 8 by the distance of H along with the movement of the laths 1 under the action of gravity and friction force; the second step is that: the hydraulic control valve block controls a piston rod of a hydraulic cylinder fixed with a first moving bracket 6 with the reference number of C1 to move towards the direction of the inner cover 10 by H, at the same time, a second moving bracket 7 with the reference number of C moves towards the direction of the inner cover 10 by H, and at the same time, all laths (namely, laths 1 with the reference number of C) fixed on the second moving bracket 7 with the reference number of C1 and fixed on the first moving bracket 6 with the reference number of C1 move towards the direction of the inner cover 8 by H, at the moment, because the goods on the laths 1 are acted by gravity and friction force, the friction force generated by the laths 1 with the reference number of a is insufficient to drive the goods to move, the position of the goods still remains motionless, and the motion state is as shown in FIG. 10; the third step: the hydraulic control valve block controls a piston rod of a hydraulic cylinder fixed with a first moving bracket 6 with the reference number B1 to move for a distance H towards the direction of the inner cover 10, at the moment, a lath 1 with the reference number B moves for a distance H towards the direction of the inner cover 10, the friction force generated by the lath 1 with the reference number B is not enough to drive the goods to move, and the position of the goods is still kept; the fourth step: the hydraulic control valve block controls a piston rod of a hydraulic cylinder fixed with a first moving bracket 6 with the reference number A1 to move a distance H towards the direction of the inner cover 10, at the moment, a lath 1 with the reference number a moves the distance H towards the direction of the inner cover 10, the friction force generated by the lath 1 with the reference number a is insufficient to drive the goods to move, the position of the goods is still kept still, namely, the state is that the bidirectional hydraulic movable floor of the invention returns to the initial state, but the goods placed on the bidirectional movable floor of the invention move the distance H towards the direction of the tail cover 10 on the bidirectional movable floor, and the first step to the fourth step are repeated until the goods move to the outside of the carriage to stop moving, and unloading is completed.

In conclusion, in the loading and unloading processes, the laths 1 and the laths 1 slide relatively under the driving of the hydraulic cylinder, and the guide grooves 12 and the guide strips 13 are formed on the laths 1, so that seamless sliding connection between the laths 1 and the laths 1 is realized, the limitation that the conventional hydraulic movable floor can only transport large goods is solved, the driving device is sealed, the service life of the driving device is prolonged, and meanwhile, the problem that the gaps between the laths 1 are blocked by granular goods or dust to influence the relative movement between the laths is avoided.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A bidirectional hydraulic movable floor is characterized in that: the device comprises a support (4), a plurality of slats (1) are placed on the support (4) in parallel side by side, the slats (1) are connected in a seamless sliding mode, a driving device (2) capable of driving the slats (1) to move back and forth along the length direction is fixed on the lower surface of the slats (1), the driving device (2) comprises a bidirectional pushing mechanism set (5), the bidirectional pushing mechanism set (5) comprises N bidirectional pushing mechanisms, N is an integer larger than 3, the bidirectional pushing mechanism comprises a movable rod capable of moving in two directions, a first moving support (6) and a second moving support (7) are fixed on two sides of the movable rod respectively, the first moving support (6) and the second moving support (7) are arranged perpendicular to the moving direction of the movable rod, a first connecting block (61) is fixed on the first moving support (6), the spacing between N first connecting blocks (61) on the first movable support (6) that arrange in proper order is the width dimension of lath (1), be fixed with second connecting block (71) on the second movable support (7), it is same the position of first connecting block (61) on the two-way pushing mechanism is symmetrical with second connecting block (71), the lower surface of lath (1) is fixed in first connecting block (61) with on second connecting block (71), lath (1) is including lath body (11), the shaping has respectively along guide slot (12) and guide strip (13) that lath body (11) length direction extends in lath body (11) upper surface both sides edge, its structure shape size of guide slot (12) rather than adjacent guide strip (13) on lath (1) cooperate, and be seamless sliding connection, the support (4) is symmetrically fixed with cross beams (9) at two sides of the driving device, the lower surface of the slab body (11) is provided with a dovetail groove (15), the upper surface of the cross beam (9) is formed with a plurality of dovetail bulges matched with the dovetail groove (15), the guide groove (12) comprises a linear crest part (121), one end of the crest part (121) is formed with a first transition part (122) in transitional connection with the crest part (121) and the slab body (11), the other end of the crest part is formed with a second transition part (124) in transitional connection with the crest part (121) and a first joint part (123), the first joint part (123) is an arc section bent towards the first transition part (122), the first joint part (123) is positioned at the upper part of the outer side of the slab body (11), the upper surface of the guide bar (13) is symmetrically provided with 3 or more than 3 ball grooves, the cross section in ball groove is greater than 180 and be less than 320 pitch arc for the central angle, ball inslot has placed and to have can be in rolling ball (132) of ball inslot, the top of ball (132) is higher than the upper surface of conducting bar (13), lie in on support (4) and be close to one side of second removal support (7) is fixed with inner cup (10), lie in on support (4) and be close to one side of first removal support (6) is fixed with tail-hood (8), slidable the upper surface of lath (1) all the time with tail-hood (8) and the upper surface of inner cup (10) is laminated mutually.

2. The bi-directional hydraulic raised floor as claimed in claim 1, wherein: first transition portion (122) with second transition portion (124) is the perpendicular to the straight line of ripples peak portion (121), first transition portion (122) with it has first transition protection portion (125) to form between ripples peak portion (121), second transition portion (124) with it has second transition protection portion (126) to form between ripples peak portion (121), first transition protection portion (125) and second transition protection portion (126) are the pitch arc, and the centre of a circle of pitch arc is located in guide slot (12), first laminating portion (123) with the perpendicular distance between lath body (11) is 0.5mm ~1 mm.

3. The bi-directional hydraulic raised floor as claimed in claim 1, wherein: the conducting bar (13) is in a cuboid shape, the width of the conducting bar is D, a second attaching portion (127) is formed at one end, far away from the crest portion (121), of the first transition portion (122), the height of the second attaching portion (127) is 1/3-1/2 of the height of the first transition portion (122), and the horizontal distance between the second attaching portion (127) and the first attaching portion (123) is equal to the width D.

4. The bi-directional hydraulic raised floor as claimed in claim 1, wherein: and a supporting part (14) extending along the length direction of the batten body (11) is formed on the upper surface of the batten body (11) between the guide groove (12) and the guide strip (13).

5. The bi-directional hydraulic raised floor as claimed in claim 4, wherein: the cross section of the supporting part (14) is trapezoidal, and the upper surface of the supporting part (14) is flush with the upper surface of the guide groove (12).

6. The bi-directional hydraulic raised floor as claimed in claim 1, wherein: the bidirectional pushing mechanism may be a double acting hydraulic cylinder.