CN207191174U - Semitrailer and its column - Google Patents

Abstract

Vehicular field is the utility model is related to, more particularly to a kind of semitrailer and its column.The side bar and multiple columns, column that semitrailer includes located at semitrailer chassis width both sides include：Column body, connecting plate and arm-tie, connecting plate is fixedly connected or is integrally formed with the column body, arm-tie is fixed on connecting plate or the column body, the fixing hole that its own is removably attachable to semitrailer side bar side is provided with the connecting plate, the fixing hole that its own is removably attachable to semitrailer side bar top surface is provided with the arm-tie.Using the modularized design and assembling of the connecting plate and arm-tie of column, installation rate and the quality of installation are improved；Using arm-tie, further enhance column and sidebar plate holds extruded ability.

Description

Semitrailer and its column

Technical field

Vehicular field is the utility model is related to, more particularly to a kind of semitrailer and its column.

Background technology

In traditional railing panel semi-trailer or storehouse grid semitrailer, pitching pile box is typically provided with vehicle frame to plant column.Pass System breast board car and storehouse grid stay do not have the fixed constraint that direct connector realizes column with chassis pitching pile box, and column is in pitching pile Certain activity space be present inside box, complete vehicle structure gap is not big, compact after installation, in the mistake that goods is extruded its sidebar plate Cheng Zhong, the power that column pitching pile box interior section is subject to are uneven so that column and sidebar plate to hold extruded ability weaker.

The pitching pile formula structure of traditional other columns of railing panel semi-trailer is embedded on side bar, and it is needed in advance in side bar On carry out cutting corresponding pitching pile hole, then pitching pile box is embedded in and pitching pile hole and mutually welded the two, this pitching pile structure manufactures work Skill is complicated, production efficiency is low, is unsatisfactory for the requirement of modularized production.

Utility model content

The technical problems to be solved in the utility model is to improve pillar construction, makes its own service life longer, be more easy to Modularized production.

In order to solve the above technical problems, the utility model adopts the following technical scheme that：A kind of column of semitrailer, including： Column body, connecting plate and arm-tie, connecting plate are fixedly connected or are integrally formed with the column body, and arm-tie is fixed on the connection On plate or column body, the fixation that its own is removably attachable to semitrailer side bar side is provided with the connecting plate Hole, the fixing hole that its own is removably attachable to semitrailer side bar top surface is provided with the arm-tie.

Preferably, the bottom surface of the arm-tie is downwardly projected the drawing for being provided with to insert semitrailer side bar top surface recess Block.

Preferably, the pulling block protrude from the arm-tie bottom profile it is curved.

Preferably, the pulling block protrudes from the outline of the arm-tie and is square or trapezoidal, includes the both sides of Relative distribution Face and the bottom surface of level.

Preferably, pilot hole is provided with the arm-tie, the top surface of the pulling block is step surface so that the top structure of pulling block Raised into one, the projection is inserted into the pilot hole and is secured to；The pilot hole is square hole, described raised to be square It is raised.

Preferably, the arm-tie is realized by boss and connecting hole with the connecting plate and is vertically connected；The boss and institute It is T-shaped to state connecting hole, boss is fixed in connecting hole by T-shaped boss after penetrating T-shaped connecting hole.

Preferably, the connecting plate is inwardly opened up an at least elongated slot by end face, and at least two are formed in the both sides of the elongated slot Clamping plate, the clamping plate is divided into two groups and is respectively assembled inside and outside the same wallboard of column body, and an at least clamping plate and institute Wallboard is stated mutually to fix.

Preferably, the wallboard of the column body is corrugated plating, and it includes the crest of interleaved and trough, wherein one The smooth outside for being fixed on the crest of group clamping plate, the smooth inner side for being fixed on the trough of another group of clamping plate.

Preferably, the connecting plate is inwardly opened up two elongated slots by end face and three is formed on connecting plate in same plane On clamping plate, the wallboard of the column body includes two crests and a trough, the middle splint of the connecting plate are smooth In the inner side of the trough, another two clamping plate is smooth in the outside of the crest；Strip welding hole, the folder are provided with the crest Plate is mutually welded by the wallboard of the strip welding hole and the column.

Preferably, the wallboard that the column body connects the connecting plate is main wallboard, and the both sides of connection said major wall plate are hung down Directly bend and form two side, said major wall plate forms the trench structure with interior concave space with the two side；The column Also include two handles, two handle is loaded in the interior concave space；The handle includes：Two jig arm and band being hinged A dynamic wherein jig arm closer or far from another jig arm handle, wherein a jig arm is fixed on said major wall plate, two jig arm it Between form a card chamber.

Preferably, in addition to be fixed on the column shrouding on column body top, the column shrouding respectively with said major wall plate Docking is matched with the two side and seals the open top of the interior concave space.

The utility model additionally provides a kind of semitrailer, including the side bar located at semitrailer chassis width both sides, also Including multiple columns described in above-mentioned any one, the top surface of the side bar is provided with corresponding with the fixing hole of the arm-tie Mounting hole is pushed up, the side bar side is provided with the side mounting hole corresponding with the fixing hole of the connecting plate.

Preferably, depression forms groove to the top surface of the side bar downwards, and the bottom surface of the arm-tie is downwardly projected and is formed and put Enter the pulling block in side bar top surface groove.

Preferably, the pulling block and the groove one-side contact.

Preferably, the pulling block contacts with the groove linear contact lay or face.

Preferably, the pulling block protrude from the arm-tie bottom profile it is curved；Fixing hole axial direction on the arm-tie With the minimum point of the pulling block the arm-tie width mutual dislocation；The inwall of the groove is curved, the top peace Hole position is filled in the side of the groove inner wall.

Preferably, the pulling block protrudes from the outline of the arm-tie and is square or trapezoidal, includes the both sides of Relative distribution Face and the bottom surface of level, the fixing hole on the arm-tie penetrate downwards the horizontal bottom surface；The inwall of the groove is in ladder Shape is square, and the two sides of the pulling block contact the both sides of groove inner wall, the bottom wall of the bottom surface contact groove of the pulling block respectively.

Preferably, the position of the close inner side of the side bar top surface bends and forms step.

Preferably, the groove is penetrates the groove at the side bar length direction both ends, the quantity of the pulling block be it is multiple, Each pulling block is spaced to be distributed and arranges in a row；Or the quantity of the pulling block is one, it is shaped in the drawing Plate, and the other end is extended to by the one end in the arm-tie sole length direction.

Preferably, in addition to the sidebar plate that is hinged on the outside of the side bar, the sidebar plate both sides are close to the position on top It is flexibly connected by bearing pin with the handle being arranged on column.

The advantages of the utility model and good effect are：1) column is connected through plate and arm-tie connects semitrailer respectively Side bar top surface and side, improve the bonding strength of column and side bar, also change the present situation of column one side stress, make column Anti-extrusion ability enhancing, effectively extend column service life；And column is fixedly connected by fastener with semitrailer side bar, The Fast Installation that corresponding pilot hole is achievable column, shape of the column to side bar need to be only reserved in manufacturing process on side bar Rely on low, therefore a kind of column can match the side bar in various sections, and part-subassemble standard degree is high, and column can be independently of Semitrailer chassis structure and individually produce, the degree of modularity is high；And column is connected with semitrailer side bar using removably, Facilitate column to dismount, for ease of maintenaince and change.

2) column is coordinated by the sunk structure of the contiguous block on arm-tie and arm-tie top surface so that side bar can be in the horizontal Column forms drawing, and then changes the stress of column, extends the service life of column.

3) fit depressions of the pulling block of lower arcuate surface profile and arc section, the two is connected by one-side contact, avoided Because pulling block or groove because machining accuracy deficiency and caused by engage it is not in place and the problem of cause column drawing failure.

Brief description of the drawings

Fig. 1 is the utility model semitrailer structural representation.

Fig. 2 is the utility model pillar construction schematic diagram.

Fig. 3 is the structural representation of the utility model connecting plate first embodiment.

Fig. 4 is the structural representation of the utility model arm-tie first embodiment.

Fig. 5 is the structural representation of the utility model side bar.

Fig. 6 is the structural representation for the first embodiment that the utility model column is connected with side bar.

Fig. 7 is Fig. 6 part A enlarged drawing.

Fig. 8 is the structural representation in the utility model connecting plate second embodiment.

Fig. 9 is the structural representation of the utility model arm-tie second embodiment.

Figure 10 is the structural representation of the utility model arm-tie 3rd embodiment.

Figure 11 is the structural representation for the second embodiment that the utility model column is connected with side bar.

Figure 12 is Figure 11 part B enlarged drawing.

Figure 13 is the structural representation for the 3rd embodiment that the utility model column is connected with side bar.

Figure 14 is Figure 13 C portion enlarged drawing.

Figure 15 is the structural representation for the fourth embodiment that the utility model column is connected with side bar.

Figure 16 is Figure 15 D magnified partial views.

Figure 17 is the structural representation for the 5th embodiment that the utility model column is connected with side bar.

Figure 18 is Figure 17 E magnified partial views.

Drawing reference numeral explanation：1st, semitrailer chassis；11st, side bar；111st, side bar side；1111st, side mounting hole；112nd, side bar Top surface；1121st, mounting hole is pushed up；1122nd, groove；1123rd, step；2nd, sidebar plate；3rd, column；31st, column shrouding；32nd, column body； 321st, main wallboard；3211st, primary peak；3212nd, trough；3213rd, secondary peak；322nd, the first side wall plate；323rd, second sidewall Plate；324th, welding hole；33rd, handle；331st, the first jig arm；332nd, the second jig arm；333rd, card chamber；334th, handle；34th, connecting plate； 341st, connecting plate fixed part；3411st, the first fixing hole；3412nd, connecting hole；3413rd, T-shaped connecting hole；342nd, connecting plate transition part； 343rd, connecting plate clamping plate portion；3431st, first clamping plate；3432nd, second clamping plate；3433rd, three-ply board；3436th, the first elongated slot； 3437th, the second elongated slot；35th, arm-tie；351st, arm-tie main body；3511st, the second fixing hole；3512nd, pilot hole；3513rd, boss； 3514th, T-shaped boss；352nd, pulling block；3521st, it is raised；3522nd, pulling block main body；36th, block piece；4th, bolt.

Embodiment

Embodying the exemplary embodiment of the utility model features and advantages will describe in detail in the following description.It should be understood that Be that the utility model can have various changes in different embodiments, it does not all depart from model of the present utility model Enclose, and explanation therein and diagram are treated as purposes of discussion in itself, and be not used to limit the utility model.

Semitrailer embodiment.

Refering to Fig. 1, the present embodiment provide a kind of semitrailer, including semitrailer chassis 1, sidebar plate 2, column 3, bolt 4 with And the side bar located at the width both sides of semitrailer chassis 1.The quantity of column 3 is multiple, and multiple columns 3 are divided into two groups pacifies respectively Loaded on two side bars 11, the symmetrical distribution of column on two side bars 11, and two adjacent upright 3 is spaced, sidebar plate 2 is set The compartment between two columns 3 is put, the bottom of sidebar plate 2 is hinged on the outside of side bar 11, and sidebar plate 2 can be relative to side bar 11 roll up or turn down.When sidebar plate 2 rolls up, its both sides close to the position on top can with the phase of column 3 hang close, and with column 3 one Rise and blocked in erectility in the outside of side bar 11 of semitrailer and exceed the top surface of side bar 11 upwards, with to the composition in semitrailer carriage Block.

Column 3 is realized by detachable connection with side bar 11 and connected, when assembling large cargo is needed from semitrailer When side is got in stocks, sidebar plate 2 can be loosened from column 3, and sidebar plate 2 is turned down, and column 3 is pulled down, treat large cargo After vanning, then column 3 is reinstalled, and closes sidebar plate 2, the both ends of sidebar plate 2 are fastened on column 3.

Describe a variety of relatively good implementations of column 3 and side bar 11 in detail below with reference to accompanying drawing.

Column embodiment.

Refering to Fig. 2, Fig. 3 and Fig. 4, the column 3 of the present embodiment includes column shrouding 31, column body 32, handle 33, connecting plate 34 and arm-tie 35.

Main part of the column body 32 as column, when it is installed on semitrailer, substantially stands on side bar in erectility Outside and the top surface for exceeding side bar upwards, to be formed block to the goods in compartment.

Connecting plate 34 and arm-tie 35 are respectively used to connect outside and the top surface of side bar, while connecting plate 34 is also used as arm-tie 35 Attachment structure between column body 32, the two is linked together.Connecting plate 34 is fixed on the position of the bottom of column body 32, draws Plate 35 be fixed on connecting plate 34 and with connecting plate 34 substantially in vertical state.It is provided with connecting plate 34 its own is detachable The first fixing hole 3411 for being connected to semitrailer side bar side, be provided with arm-tie 35 and its own be removably attachable to half Second fixing hole 3511 of trailer side bar top surface.

Arm-tie 35 is perpendicularly fixed on connecting plate 34 by welding, and the edge of arm-tie 35 is provided with boss 3513, connecting plate Connecting hole 3412 is provided with 34, boss 3513 is inserted on connecting plate 34 will the two phase by welding after corresponding connecting hole 3412 It is fixed.Boss 3513 is square, and the connecting hole 3412 on correspondingly connected plate 34 is also square.

The bottom surface of arm-tie 35, which is downwardly projected, is provided with multiple pulling blocks 352, and arm-tie 35 is correspondingly arranged on multiple pilot holes 3512, The top surface of pulling block 352 is step surface, and pulling block 352 is divided into pulling block main body 3522 and a projection 3521 at top by the step surface, Projection 3521 is inserted into corresponding pilot hole 3512 and is secured to.Pilot hole 3512 is square hole in the present embodiment, raised 3521 is are adapted to the square protruding of the square hole size, and projection 3521 is with pilot hole 3512 by being welded to connect.In other embodiment It is red, projection 3521 and pilot hole 3512 or circle, triangle, polygon or other rules or irregular shape.

The bottom profile that pulling block 352 protrudes from arm-tie 35 is curved.It is preferred that on arm-tie 35 connecting side bar top surface The axis of fixing hole 3511 and the minimum point of pulling block 352 arm-tie 351 width mutual dislocation.

A wherein wallboard for column body 32 is connected with connecting plate 34, and the wallboard is main wallboard 321, the both sides of main wallboard 321 Vertical bending and form two side, i.e. the first side wall plate 322 and second sidewall plate 323, main wallboard 321 and the first side wall plate 322, Second sidewall plate 323 forms the trench structure with interior concave space.

Main wallboard 321 is corrugated plating, and it includes the crest of interleaved and trough, and main wallboard 321 includes in the present embodiment Primary peak 3211, secondary peak 3213 and a trough 3212.Primary peak 3211 is with secondary peak 3213 close to lower end Position is provided with the welding hole 324 with the strip flute profile for connecting with welding plate 34.Primary peak 3211 leans on secondary peak 3213 The position of nearly upper end is provided with multiple welding the welding hole of handle 33.

Connecting plate 34 includes：Connecting plate fixed part 341 and connecting plate clamping plate portion 343.

Connecting plate fixed part 341 is above-mentioned connecting the connecting hole 3112 of arm-tie 35 to connect arm-tie 35 and side bar It is above-mentioned also to be located at connecting plate fixed part 341 to connect the first fixing hole 3411 of side bar in connecting plate fixed part 341.

Connecting plate clamping plate portion 343 is inwardly opened up an at least elongated slot by end face, and forming at least two in the both sides of elongated slot is distributed in Clamping plate in same plane.The first elongated slot 3436, the second elongated slot 3437 are provided with the present embodiment.The present embodiment is three clamping plates, Respectively first clamping plate 3431, second clamping plate 3432 and three-ply board 3433.The clamping plate of second clamping plate 3432 is smooth in trough 3212 Inner side, first clamping plate 3431, second clamping plate 3432 are smooth in the outside of primary peak 3211 and secondary peak 3213 respectively, and Realize that the two is welded to connect by the strip welding hole 324 on primary peak 3211 and secondary peak 3213.Each ripple on main wallboard 321 Peak, the depth of trough are consistent with the thickness of each clamping plate on connecting plate 34, therefore, when the two is assembled in a manner of being overlapping When together, the inside and outside two sides of the column bottom after assembling is plane, to avoid and the other structures on semitrailer or use State is interferenceed with other objects.In addition, the clamping plate on connecting plate 34 is fixed on column body 32 in a manner of inside and outside sandwich Main wallboard 321, the bonding strength between column body 32 and connecting plate 34 can also be strengthened, avoided because strut length is laterally squeezed Pressure and between the two produce tear.And the main wallboard 321 of ripple struction can also strengthen the bulk strength of column body 32, make Service life improve.

Column 3 is also included to be flexibly connected two handles 33 of sidebar plate, and two handles 33 are loaded on the interior of above-mentioned column body 32 In concave space；Specifically, handle 33 includes the first jig arm 331, the second jig arm 332 and a drive wherein jig arm being hinged (the first jig arm 331) closer or far from another jig arm (the second jig arm 332) handle 334, wherein a jig arm (the first jig arm 331) Main wallboard 321 is fixed on, a card chamber 333 is formed between the first jig arm 331, the second jig arm 332.Pass through the first jig arm 331, second The folding of jig arm 332, the bearing pin on semitrailer sidebar plate 2 is movably snapped into card chamber 333.

In the present embodiment, the corrugated plating for including primary peak 3211, trough 3212 and secondary peak 3213 is employed, In other embodiments, the corrugated plating only with a crest and a trough can be used, or more crests and trough Corrugated plating.Correspondingly, connecting plate clamping plate portion 343 includes the clamping plate quantity consistent with crest, trough quantity, and clamping plate is divided into Two groups are respectively assembled inside and outside main wallboard 321, the corresponding crest of each clamping plate or a trough, and an at least clamping plate Mutually fixed with the crest or trough of main wallboard 321.In addition, main wallboard 321 or non-corrugated structure.

In the present embodiment, column 3 also includes the column shrouding 31 for being fixed on the top of column body 32, and column shrouding 31 is distinguished Docked with the matching of main wallboard 321, the first side wall plate 322 and second sidewall plate 323 and seal the top of concave space in column body 32 Portion's opening.

Side bar embodiment.

Refering to Fig. 5, the side bar 11 of the present embodiment includes side bar side 111 and side bar top surface 112.On side bar side 111 Side mounting hole 1111 is provided with, top mounting hole 1121 is provided with side bar top surface 112.Side bar top surface 112 is formed to lower recess Groove 1122.The groove 1122 is to penetrate the logical of the length direction both ends of side bar 11 by what the bending of the top surface of side bar 11 or die mould formed Groove.

The position (i.e. at side bar inner free end) of the close inner side of side bar top surface bends and forms step 1123, step 1123 height is adapted with the floor level on semitrailer chassis, when side bar 11 is loaded on semitrailer chassis, the ground on chassis Plate end is i.e. loaded on the step.

The top mounting hole 1121 of side bar top surface is located in groove 1122, and the inwall of groove 1122 is curved, side bar top surface Top mounting hole 1121 is located in groove 1122, and pushes up the wherein side that mounting hole 1121 is located at curved wall, it is preferred that top installation Hole 1121 is located on the curved wall in outside.That is, using the lowest part of the arc groove 1122 as line of demarcation, by arc groove 1122 It is divided into two relative cell walls, the top mounting hole is located in one of on cell wall, it is preferred that on the cell wall compared with outside.

In other embodiments, top mounting hole 1121 can be also not arranged in groove 1122, or is arranged on groove 1122 Interior optional position.

Column and the first embodiment of side bar attachment structure.

Fig. 6 and Fig. 7 is the structure chart that column shown in Fig. 2 assembles state with side bar shown in Fig. 5.

Refering to Fig. 6 and Fig. 7, and Fig. 2-Fig. 5 is combined, when column 3 assembles with side bar 11, the arm-tie 35 of column 3 is affixed on side bar 11 top surface, the connecting plate 34 of column 3 are affixed on the side of side bar 11, the drawing of the top mounting hole 1121 and column 3 of the top surface of side bar 11 The fixing hole 3511 of plate 35 is corresponded, and the two is detachably connected by fastener, the side mounting hole 1111 of the side of side bar 11 with The fixing hole 3411 of connecting plate 34 is corresponded, and the two is detachably connected by fastener.

Meanwhile multiple pulling blocks 352 of the bottom surface of arm-tie 35 are inserted in the groove of the top surface of side bar 11 so that side bar 11 can be in horizontal stroke Upward column 3 forms drawing, and then changes the stress of column 3, extends the service life of column 3.

Pulling block 352 and groove one-side contact, the i.e. side of the lower arcuate surface of pulling block 352 and a side contacts phase of groove inner wall Even, even if so as to which groove and pulling block 352 whether there is tolerance in processing so that be wider than the width of pulling block 352 in groove And make and gap therebetween be present, as long as the side of pulling block 352 is connected with the side contacts of groove inner wall one can make side bar 11 to pulling block 352 form drawing in the horizontal, and then change the stress of column 3.

In addition, pulling block 352 is arcwall face with the face that groove one side is in contact, contact position both can be linear contact lay or can Be face contact.Thus the side of pulling block 352 can be in contact with the optional position of depth of groove direction side, so as to reduce The contraposition installation accuracy of the top mounting hole 1121 and the fixing hole 3511 of arm-tie 35 of side bar 11.That is, it is assumed that because of pulling block 352 Or Pocket Machining accuracy error and cause the off-design position of fixing hole 3511 of top mounting hole 1121 and the arm-tie 35 of side bar 11, Now the fixing hole 3511 of arm-tie 35 will make pulling block 352 deviate former design dress with the position that the top mounting hole 1121 of side bar 11 is aligned With position, and because the side of pulling block 352 can be in contact with the optional position of depth of groove direction side, thus even if pulling block Former design attitude is deviate from during 352 assembling, but its actual rigging position times is so able to ensure that pulling block 35 and groove one-side contact.

In addition, can also be by the minimum point of the axis of fixing hole 3511 on arm-tie 35 and pulling block 352 in the width side of arm-tie 35 To mutual dislocation, or, the top mounting hole 1121 of the top surface of side bar 11 is located at the side of groove inner wall, so that more conducively pulling block 352 realize that one-side contact is connected with groove.

Side bar side 111 also sets up a baffle plate, and side bar side 111 is sandwiched between upright post connecting plate 34 and block piece 36.Bolt It is fixed after sequentially passing through upright post connecting plate 34, side bar side 111 and block piece 36.Block piece 36 can disperse connecting portion Active force simultaneously forms reinforcement to side bar 11.

Connecting plate second embodiment.

Refering to Fig. 8, second of connecting plate 34 is present embodiments provided.T-shaped company is used in connecting plate 34 in the present embodiment Connect hole 3413 and replace connecting hole 3412, other set all same.

The T-shaped connecting hole includes a horizontal wide aperture and the vertical narrower bore connected with the wide aperture.

Arm-tie second embodiment.

Refering to Fig. 9, the square boss 3513 in Fig. 4 is replaced using T-shaped boss 3514 in the arm-tie 35 in the present embodiment, should Boss structure can be connected to drawing to cooperation, T-shaped boss 3514 with the T-shaped connecting hole 3413 in connecting plate second embodiment including one Narrow neck on plate 35 and the wide stop section being connected with neck, during assembling, first the T-shaped boss 3514 of arm-tie 35 is inserted In the horizontal wide aperture of T-shaped connecting hole 3413, then drive arm-tie above to carry, T-shaped boss 3514 is moved in vertical narrower bore, this When T-shaped boss 3514 stop section block on the hole wall of connecting hole 3413, then the two is mutually fixed by welding.

In other embodiments, boss 3514 can not be also connected with connecting hole 3413 by welding structure, and pass through assembling Form is detachably connected.

The present embodiment and above-mentioned Fig. 4 pulling plate structure another difference is that, the pulling block in the present embodiment protrudes from arm-tie Bottom profile it is trapezoidal, including the two sides of Relative distribution and a horizontal bottom surface, two sides are clinoplain or slightly The cambered surface of radian.

Arm-tie 3rd embodiment.

Refering to Figure 10, the third arm-tie 35 is present embodiments provided.Arm-tie 35 includes arm-tie main body 351 and pulling block 352. Arm-tie main body 351 and the global formation of pulling block 352.Arm-tie 35 is by casting, machining or stamping forming mode processes acquisition. Pulling block 352 extends to the other end along the length direction of arm-tie main body 351 by one end.The present embodiment eliminates pilot hole 3512, convex The setting of platform 3513, have it is simple in construction, without welding the advantages of.The profile of pulling block 352 can flexibly be set as needed.

Further, since the pulling block 352 of the present embodiment is made of one with arm-tie main body 351, therefore, pulling block 352 is positioned at fixation The lower section in hole 3511 (fixing hole for being used for butt joint edge top surface of the beam), fixing hole 3511 penetrate downwards pulling block 352, and fixing hole 3511 The minimum point of axis and pulling block 352 arm-tie 35 width mutual dislocation, i.e. pulling block 352 using its lowest part as line of demarcation, The bottom surface of pulling block pulling block 352 is divided into two relative lower arcuate surfaces, the lower arcuate surface therethrough of fixing hole 3511.Gu Determine hole 3511 and be advantageous to pulling block pulling block 352 with the dislocation relation of pulling block 352 to be connected with side bar groove single edge contact, avoid because of pulling block Or groove because machining accuracy deficiency and caused by engage it is not in place and cause column drawing failure the problem of.

Column and the second embodiment of side bar attachment structure.

Refering to Figure 11 and Figure 12, column and the column of side bar attachment structure and first embodiment and side bar of the present embodiment connect The difference of binding structure is that side bar top surface 112 is plane, i.e. the un-grooved of side bar top surface 112.Arm-tie 35 is using without pulling block Flat board, arm-tie 35 are attached with side bar top surface 112 using bolt.Connecting plate is attached with side bar side 111 using bolt. The side of side bar side 111 is connected with connecting plate, and opposite side is connected with block piece 36.Screw bolt passes connecting plate, side bar side 111 And it is fixed after block piece 36.Block piece 36 can disperse the active force of connecting portion.

Column and the 3rd embodiment of side bar attachment structure.

Refering to Figure 13 and Figure 14, and Fig. 2-Fig. 5 is combined, column and the side bar attachment structure and first embodiment of the present embodiment Column and the difference of side bar attachment structure be that the outline that pulling block 352 protrudes from arm-tie 35 is trapezoidal, including Relative distribution Two sides and level bottom surface, two sides can be inclined plane or the slightly cambered surface of radian, and this is trapezoidal Pulling block 352 is engaged with the arc groove 1122 of edge beam of underframe 11, and the two sides of pulling block 352 contact arc groove 1122 respectively Two arc inner walls, the two can linear contact lay also can face contact.Arm-tie 352 is detachably connected with side bar 11 by bolt 4.

In other embodiments, can also arc groove be changed into trapezoidal groove, consistently to match trapezoidal pulling block.

Column and the fourth embodiment of side bar attachment structure.

Refering to Figure 15 and Figure 16, and Fig. 2-Fig. 5 is combined, column and the side bar attachment structure of the present embodiment and first embodiment Difference be that the outline that pulling block 352 protrudes from arm-tie is square, accordingly the section of groove 1122 of side bar top surface also in side Shape, the outline that pulling block 352 protrudes from arm-tie 352 include two vertical sides of Relative distribution and horizontal bottom surface, groove 1122 inwall includes two vertical side walls and a horizontal bottom wall, and two sides of pulling block 352 contact groove respectively 1122 two bottom walls, three of the bottom wall, i.e. pulling block 352 and the inwall of groove 1122 of the bottom surface contact groove 1122 of pulling block 352 Face contacts.Arm-tie is detachably connected with side bar by fastener.

Column and the 5th embodiment of side bar attachment structure.

Refering to Figure 17 and Figure 18, the column and the difference of side bar attachment structure of the present embodiment and second embodiment are, draw The bottom surface of plate 35 is overlapped in side bar top surface 112, and the two contact surface is by being welded to connect, and pulling block 352 contacts with the side wall of groove 1122 Position also using being welded to connect.

Will be it is emphasized that in various embodiments above, connecting plate 34 all passes through welding side as a single part Formula is fixed on column body 32, and in other embodiments, connecting plate 34 can also omit connecting plate clamping plate portion 343 and be shaped in On column body 32, in this case, arm-tie 35 directly can be fixedly connected with column body 32.Even if in addition, connecting plate 34 be present, lead to Certain malformation is crossed, arm-tie 35 can be also connected directly between on column body 32.

Although describing the utility model with reference to several exemplary embodiments, it is to be understood that, term used is to say Bright and exemplary and nonrestrictive term.Because the utility model can be embodied without departing from practicality in a variety of forms New is spiritual or substantive, it should therefore be appreciated that above-mentioned embodiment is not limited to any foregoing details, and should be in right of enclosing It is required that widely explained in the spirit and scope limited, thus whole changes for falling into claim or its equivalent scope and Remodeling all should be appended claims and be covered.

Claims (20)

1. A kind of 1. column of semitrailer, it is characterised in that including：

   Column body,

   Connecting plate, it is fixedly connected or is integrally formed with the column body,

   Arm-tie, it is fixed on connecting plate or the column body,

   The fixing hole that its own is removably attachable to semitrailer side bar side is provided with the connecting plate, on the arm-tie It is provided with the fixing hole that its own is removably attachable to semitrailer side bar top surface.
2. 2. the column of semitrailer as claimed in claim 1, it is characterised in that the bottom surface of the arm-tie, which is downwardly projected, is provided with use To insert the pulling block of semitrailer side bar top surface recess.
3. 3. the column of semitrailer as claimed in claim 2, it is characterised in that the pulling block protrudes from the bottom surface wheel of the arm-tie It is wide curved.
4. 4. the column of semitrailer as claimed in claim 2, it is characterised in that the pulling block protrudes from the outline of the arm-tie It is square or trapezoidal, including the two sides of Relative distribution and the bottom surface of level.
5. 5. the column of semitrailer as claimed in claim 2, it is characterised in that pilot hole, the drawing are provided with the arm-tie The top surface of block is step surface so that the top of pulling block forms a projection, and the projection is inserted into the pilot hole and consolidated with it It is fixed；The pilot hole is square hole, and the projection is square protruding.
6. 6. the column of semitrailer as claimed in claim 2, it is characterised in that the arm-tie and the connecting plate by boss and Connecting hole is realized and is vertically connected；The boss and the connecting hole are T-shaped, and T-shaped boss consolidate boss after penetrating T-shaped connecting hole Due in connecting hole.
7. 7. the column of semitrailer as claimed in claim 1, it is characterised in that the connecting plate is inwardly opened up at least one by end face Elongated slot, at least two clamping plates are formed in the both sides of the elongated slot, the clamping plate is divided into two groups, and to be respectively assembled at the column body same Inside and outside wallboard, and an at least clamping plate is mutually fixed with the wallboard.
8. 8. the column of semitrailer as claimed in claim 7, it is characterised in that the wallboard of the column body is corrugated plating, It includes the crest of interleaved and trough, the smooth outside for being fixed on the crest of one of which clamping plate, and another group of clamping plate is put down Patch is fixed on the inner side of the trough.
9. 9. the column of semitrailer as claimed in claim 8, it is characterised in that the connecting plate is inwardly opened up two long by end face Groove and three clamping plates at grade are formed on connecting plate, the wallboard of the column body includes two crests and one Individual trough, the middle splint of the connecting plate are smooth smooth in the outside of the crest in the inner side of the trough, another two clamping plate； Strip welding hole is provided with the crest, the clamping plate is mutually welded by the wallboard of the strip welding hole and the column.
10. 10. the column of semitrailer as claimed in claim 7, it is characterised in that the column body connects the wall of the connecting plate Plate is main wallboard, and the both sides for connecting said major wall plate vertically bend and form two side, said major wall plate and the two side structure Into the trench structure with interior concave space；The column also includes two handles, and two handle is loaded in the interior concave space；Institute Stating handle includes：Two jig arm that are hinged and handle of the wherein jig arm closer or far from another jig arm is driven, wherein one Jig arm is fixed on said major wall plate, and a card chamber is formed between two jig arm.
11. 11. the column of semitrailer as claimed in claim 10, it is characterised in that also include the column for being fixed on column body top Shrouding, the column shrouding dock with said major wall plate and two side matching and seal the top of the interior concave space respectively Opening.
12. 12. a kind of semitrailer, including the side bar located at semitrailer chassis width both sides, it is characterised in that also including right It is required that multiple columns described in 1,7-11 any one, the top surface of the side bar is provided with corresponding with the fixing hole of the arm-tie Top mounting hole, the side bar side is provided with the side mounting hole corresponding with the fixing hole of the connecting plate.
13. 13. semitrailer as claimed in claim 12, it is characterised in that depression forms groove to the top surface of the side bar downwards, institute The bottom surface for stating arm-tie is downwardly projected and formed the pulling block inserted in side bar top surface groove.
14. 14. semitrailer as claimed in claim 13, it is characterised in that the pulling block and the groove one-side contact.
15. 15. semitrailer as claimed in claim 13, it is characterised in that the pulling block contacts with the groove linear contact lay or face.
16. 16. semitrailer as claimed in claim 13, it is characterised in that the bottom profile that the pulling block protrudes from the arm-tie is in Arc；Width mutual dislocation of the minimum point of fixing hole axial direction and the pulling block on the arm-tie in the arm-tie；Institute State that the inwall of groove is curved, the top mounting hole site is in the side of the groove inner wall.
17. 17. semitrailer as claimed in claim 13, it is characterised in that the pulling block protrudes from the outline of the arm-tie in side Shape is trapezoidal, including the two sides of Relative distribution and the bottom surface of level；The inwall of the groove is trapezoidal or square, the drawing The two sides of block contact the both sides of groove inner wall, the bottom wall of the bottom surface contact groove of the pulling block respectively.
18. 18. semitrailer as claimed in claim 12, it is characterised in that the close inner side of the side bar top surface position bending and Form step.
19. 19. semitrailer as claimed in claim 13, it is characterised in that the groove is the insertion side bar length direction both ends Groove, the quantity of the pulling block is multiple, and each pulling block is spaced to be distributed and arrange in a row；Or the number of the pulling block Measure as one, it is shaped in the arm-tie, and extends to the other end by the one end in the arm-tie sole length direction.
20. 20. semitrailer as claimed in claim 12, it is characterised in that also include being hinged on the sidebar plate on the outside of the side bar, The sidebar plate both sides are flexibly connected close to the position on top by bearing pin with the handle being arranged on column.