CN107200073A - Low flat bed semi trailer and its hitch structure, loading platform - Google Patents
Low flat bed semi trailer and its hitch structure, loading platform Download PDFInfo
- Publication number
- CN107200073A CN107200073A CN201610150848.1A CN201610150848A CN107200073A CN 107200073 A CN107200073 A CN 107200073A CN 201610150848 A CN201610150848 A CN 201610150848A CN 107200073 A CN107200073 A CN 107200073A
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- Prior art keywords
- loading platform
- plug
- slot
- trailer
- swing arm
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Links
- 238000003780 insertion Methods 0.000 claims abstract description 57
- 230000037431 insertion Effects 0.000 claims abstract description 57
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 244000261422 Lysimachia clethroides Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/06—Semi-trailers
- B62D53/061—Semi-trailers of flat bed or low loader type or fitted with swan necks
- B62D53/062—Semi-trailers of flat bed or low loader type or fitted with swan necks having inclinable, lowerable platforms; Lift bed trailers; Straddle trailers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides a kind of low flat bed semi trailer and its hitch structure, loading platform.Hitch structure includes swing arm, plug, telescoping cylinder.Swing arm one end is used to be connected with tractor.Plug includes connecting portion and insertion section.Connecting portion is rotatably connected with the other end of swing arm, and insertion section is used to insert trailer loading platform and make plug be connected with trailer loading platform, and insertion section is provided with the holding section with trailer loading platform phase clamping.Connecting portion of the two ends of telescoping cylinder respectively with swing arm and plug is connected, and plug is rotated relative to swing arm, and drives holding section clamping trailer loading platform on plug or released from trailer loading platform.On above-mentioned low flat bed semi trailer, hitch structure is detachably connected with vehicle-mounted load bed.
Description
Technical field
The present invention relates to tractor transport field, and in particular to a kind of low flat bed semi trailer and its hitch structure, loading platform.
Background technology
During existing port transport, many using 4 × 2 single user wharf tractors for wearing the special hitch structure of harbour, the tractor drive shaft is without shockproof suspension, cab space is small, travel speed is low, parts are generally special-purpose member.These shortcomings have had a strong impact on all transfer efficients of cargo transport in port.Also, because the suspension of such tractor is without damping, it is impossible to carry out highway transportation of leaving the port, add operation cost.Also, the loading platform matched with the special hitch structure of harbour is harbour pallet（Roll
trailer）, the Roll trailer are using the axle of a line two is rigid suspended, wear solid small tire.Roll trailer cars because the road clearance is small, be equipped with solid tyre, can only low speed operation, conevying efficiency is high.
Because tractor and hitch structure are the special-purpose member that complements one another and use.Therefore, while in handling goods, the resource is still taken, the waste of resource is caused, conevying efficiency is reduced.
The content of the invention
It is an object of the invention to provide a kind of low flat bed semi trailer and its hitch structure for realizing fast quick-detach, loading platform.
A kind of hitch structure, including：
Swing arm, its one end is used to be connected with tractor；
Plug, including connected connecting portion and insertion section, the connecting portion is rotatably connected with the other end of the swing arm, and the insertion section is used to insert trailer loading platform and make the plug be connected with the trailer loading platform, and the insertion section is provided with the holding section with the trailer loading platform phase clamping；
Telescoping cylinder, connecting portion of its two ends respectively with the swing arm and the plug is connected, and the plug is rotated relative to the swing arm, and drives trailer loading platform described in the holding section clamping on the plug or released from the trailer loading platform.
In a wherein embodiment, the holding section includes baffle plate, and the baffle plate protrusion is located at the lower surface of the insertion section, and the baffle plate is used for and trailer loading platform phase clamping.
In a wherein embodiment, the lower surface of the insertion section includes supporting surface, and the supporting surface is plane.
In a wherein embodiment, the lower surface of the insertion section is including being the supporting surface of plane and being tilted down by supporting surface and extended the transition face for connecting the connecting portion.
In a wherein embodiment, the upper surface of the insertion section is tilted gradually downward relative to the supporting surface by the side of the laterally closer end away from end.
In a wherein embodiment, the swing arm is oppositely arranged including two, in cygneous longeron and the crossbeam between two longerons, the longeron includes upper flange, lower wing plate and web, the web connects the upper flange and lower wing plate, the quantity of the plug is one, and it is rotationally connected between described two longerons.
In a wherein embodiment, the web of the longeron is provided with the first reinforcing plate, and the connecting portion of the plug includes two connecting plates and the support beam between two connecting plates being oppositely arranged, and the connecting plate is provided with the second reinforcing plate.
In a wherein embodiment, also include support member, one end of the support member is fixed in the swing arm, the other end of the support member is telescopic end, the telescopic end stretches between the tractor and the swing arm, the swing arm is rotated, and the telescopic end of the support member extends and is connected on the tractor, and the support member is to support the swing arm.
In a wherein embodiment, the one end of the swing arm away from the tractor is provided with lock pin, and the lock pin is detachably connected the swing arm and the connecting portion.
A kind of trailer loading platform, including loading platform and the suspended structure below the loading platform, the loading platform, which is provided with slot, the slot, is provided with limiting section, and the limiting section is used for and hitch structure phase clamping.
In a wherein embodiment, the slot includes upper side wall, lower wall, left side wall and right side wall, the upper side wall, lower wall, left side wall and right side wall are mutually spliced to form tubaeform slot structure, the slot is more than the caliber size of medial extremity close to the bore of the opening of the outboard end of the loading platform, the limiting section is located at the medial extremity of the lower wall of the slot, and the limiting section is block.
In a wherein embodiment, the upper side wall of the slot is parallel to the loading platform surface, and the lower wall includes：By the outward opening of the slot inward towards acclivitous first guide plate of the upper side wall.
In a wherein embodiment, the lower wall also includes the second guide plate, second guide plate is located at first guide plate close to the outward opening side of the slot, and the side of second guide plate is connected with first guide plate, and dorsad the upper side wall is tilted down opposite side.
A kind of low flat bed semi trailer, including above-mentioned hitch structure and above-mentioned trailer loading platform, the hitch structure is connected together with the trailer loading platform, the plug is contained in the slot, the telescoping cylinder, which stretches out or retracted, drives the plug to rotate, and makes the holding section of the plug and the clamping of limiting section phase or disengaging of the slot.
In a wherein embodiment, in addition to spacer pin, the spacer pin penetrates the loading platform and the plug, the loading platform is fixed with the plug.
In a wherein embodiment, when the plug inserts the slot, and the limiting section of the holding section of the plug and the slot is when abutting against, the plug has space between the upper surface of its end and slot upper side wall, has space between lower surface and slot lower wall of the plug away from its end.
On above-mentioned low flat bed semi trailer, hitch structure is detachably connected with trailer loading platform so that a tractor can draw multiple different trailer loading platforms respectively.Avoid when handling goods is being carried out to loading platform, tractor can also be transported to other trailer loading platforms.The waste of resource is avoided, the utilization rate of tractor is improved.Also, drive plug to rotate by using expansion link is flexible, it is easy to operate, it is easily controlled, is easy to implement the separation of hitch structure and vehicle-mounted load bed.
Brief description of the drawings
Fig. 1 is the structural representation of the low flat bed semi trailer of present embodiment；
Fig. 2 is the top view of the low flat bed semi trailer shown in Fig. 1；
Fig. 3 is schematic diagram of the hitch structure with trailer loading platform disengaged position of the low flat bed semi trailer shown in Fig. 1；
Fig. 4 is the structural representation of the hitch structure of the low flat bed semi trailer shown in Fig. 1；
Fig. 5 is the top view of the hitch structure of the low flat bed semi trailer shown in Fig. 4；
Fig. 6 is the side view of the slot of the low flat bed semi trailer shown in Fig. 1；
Fig. 7 is the sectional view of the slot of the low flat bed semi trailer shown in Fig. 6；
Fig. 8 is the enlarged partial sectional view of the low flat bed semi trailer shown in Fig. 1；
Fig. 9 is the top view of the slot of the low flat bed semi trailer shown in Fig. 7；
Figure 10 is that the hitch structure of the low flat bed semi trailer shown in Fig. 8 departs from the schematic diagram of process with trailer loading platform.
Description of reference numerals is as follows：10th, low flat bed semi trailer；100th, hitch structure；110th, swing arm；111st, longeron；112nd, crossbeam；113rd, upper flange；114th, lower wing plate；115th, web；116th, the first reinforcing plate；117th, towing pin；118th, rotational pin；120th, plug；121st, connecting portion；122nd, insertion section；123rd, holding section；124th, tie-beam；125th, support beam；126th, the second reinforcing plate；127th, supporting surface；128th, transition face；130th, telescoping cylinder；140th, support member；141st, telescopic end；150th, lock pin；160th, spacer pin；200th, trailer loading platform；201st, loading platform；203rd, suspended structure；210th, slot；211st, upper side wall；212nd, lower wall；213rd, left side wall；214th, right side wall；215th, reinforcement；216th, the first guide plate；217th, the second guide plate；218th, bearing surface；220th, limiting section；221st, block；20th, tractor.
Embodiment
Embodying the exemplary embodiment of feature of present invention and advantage will describe in detail in the following description.It should be understood that the present invention can have various changes in different embodiments, it is neither departed from the scope of the present invention, and explanation therein and diagram are treated as purposes of discussion in itself, and is not used to the limitation present invention.
Fig. 1 and Fig. 2 is referred to, the present invention provides a kind of low flat bed semi trailer 10.Low flat bed semi trailer 10 includes hitch structure 100 and trailer loading platform 200.The hitch structure 100 of present embodiment includes swing arm 110, plug 120 and telescoping cylinder 130.Hitch structure 100 is connected together with trailer loading platform 200.
One end of the swing arm 110 of the hitch structure 100 of present embodiment is used to be connected with tractor 20.Plug 120 includes connecting portion 121 and the insertion section 122 of connection.Connecting portion 121 can be arranged in a mutually vertical manner with insertion section 122, can also mutually angle setting in obtuse angle.Connecting portion 121 is rotatably connected with the other end of swing arm 110.Insertion section 122 is used to insert trailer loading platform 200 and make plug 120 be connected with trailer loading platform 200.Insertion section 122 is provided with the holding section 123 with the phase clamping of trailer loading platform 200.The two ends of telescoping cylinder 130 are connected with the connecting portion 121 of swing arm 110 and plug 120 respectively, and plug 120 is rotated relative to swing arm 110, and drive the clamping trailer loading platform 200 of holding section 123 on plug 120 or released from trailer loading platform 200.
The trailer loading platform 200 of present embodiment includes loading platform 201 and the suspended structure 203 located at the lower section of loading platform 201.Slot 210, which is located in loading platform 201, slot 210, is provided with limiting section 220.Limiting section 220 is used for and the phase clamping of hitch structure 100.The telescoping cylinder 130 of hitch structure 100 stretches out or retracted drive plug 120 and rotates, and makes the holding section 123 of plug 120 and the phase clamping of limiting section 220 or disengaging of slot 210.
When needing to use trailer loading platform 200 to transport, the insertion section 122 of plug 120 only need to be directed to the slot 210 of trailer loading platform 200, fall back tractor 20, so that insertion section 122 is inserted into slot 210, so that the holding section 123 of insertion section 122 and the phase clamping of limiting section 220 in slot 210, plug 120 is connected with trailer loading platform 200, trailer loading platform 200 is connected with tractor 20 by hitch structure 100.
When trailer loading platform 200 need not be used to transport, telescoping cylinder 130 shrinks or extended first, telescoping cylinder 130 drives plug 120 to rotate, insertion section 122 is set to be rotated relative to slot 210, the holding section 123 and the limiting section 220 in slot 210 for making insertion section 122 are separated, and tractor 20 is advanced forward, insertion section 122 is set to be skidded off out of slot 210, as shown in figure 3, one end of loading platform 201 is contacted to earth, so as to realize the separation of hitch structure 100 and trailer loading platform 200.
On above-mentioned trailer loading platform 200, hitch structure 100 is detachably connected with trailer loading platform 200 so that a tractor 20 can draw multiple different trailer loading platforms 200 respectively.Avoid when handling goods is being carried out to loading platform 201, tractor 20 can also be transported to other trailer loading platforms 200.The waste of resource is avoided, the utilization rate of tractor 20 is improved.Also, drive plug 120 to rotate by using expansion link is flexible, it is easy to operate, it is easily controlled, is easy to implement the separation of hitch structure 100 and vehicle-mounted load bed.
Fig. 4 and Fig. 5 is referred to, specifically in the hitch structure 100 of present embodiment, swing arm 110 is oppositely arranged including two, in cygneous longeron 111 and the crossbeam 112 between two longerons 111.Longeron 111 includes upper flange 113, lower wing plate 114 and web 115.Web 115 connects upper flange 113 and lower wing plate 114, and web 115 is provided with the first reinforcing plate 116.Specifically, because swing arm 110 is that gooseneck shape, i.e. web 115 are also gooseneck shape, the first reinforcing plate 116 is located at the bending place of web 115.First reinforcing plate 116 can strengthening web 115 bending place intensity.
Swing arm 110 is provided with towing pin 117 close to one end of tractor 20.Swing arm 110 is realized by towing pin 117 and is connected with the traction of tractor 20.
Referring to Fig. 5, specifically in the present embodiment, a plug 120 is between two longerons 111.Hitch structure 100 is connected with trailer loading platform 200 by a plug 120.Due to when hitch structure 100 and trailer loading platform 200 are plugged, being fallen back by tractor 20, so that hitch structure 100 is docked with trailer loading platform 200.Plug 120 is easy to hold the position of plug 120 in the middle of two longerons 111, to ensure that plug 120 and slot 210 are easily aligned successfully, it is ensured that the stability and accuracy of operation.
The connecting portion 121 of plug 120 includes two tie-beams 124 and the support beam 125 between two tie-beams 124 being oppositely arranged.Referring to Fig. 4, tie-beam 124 is provided with the second reinforcing plate 126.Specifically, tie-beam 124 is H profile steel, T-steel etc..Second reinforcing plate 126 strengthens the intensity of plug 120 located at connecting portion 121 and the junction of insertion section 122, the second reinforcing plate 126.Connecting portion 121 and the other end of swing arm 110 are rotatably connected by rotational pin 118.
Insertion section 122 is wedge shape.Insertion section 122 is in short transverse tapered size axially outward.The lower surface of insertion section 122 includes supporting surface 127.Supporting surface 127 is plane, and supporting surface 127 is axially vertical with connecting portion 121.
The lower surface of insertion section 122 also includes the transition face 128 being connected with supporting surface 127.Supporting surface 127 is located at the end of the free end of insertion section 122, and transition face 128 is located at side of the supporting surface 127 away from end, and transition face 128 is tilted gradually downward by the side for being laterally away from end close to end.
Refer to Fig. 6, in the trailer loading platform 200 of present embodiment, slot 210 includes upper side wall 211, lower wall 212, left side wall 213 and right side wall 214, and upper side wall 211, lower wall 212, left side wall 213 and right side wall 214 are mutually spliced to form tubaeform slot structure.Slot 210 is more than the caliber size of medial extremity close to the bore of the opening of the outboard end of loading platform 201.The insertion section 122 of wedge shape and tubaeform slot 210, enable plug 120 to be easy to align with slot 210, and smoothly enter slot 210.
Fig. 7 and Fig. 8 is referred to, the upper side wall 211 of slot 210 is parallel to the surface of loading platform 201, when plug 120 inserts slot 210, so that plug 120 has space A between the upper surface of its end and the upper side wall 211 of slot 210.
Referring to Fig. 9, left side wall 213 and right side wall 214 are provided with reinforcement 215.Reinforcement 215 can strengthen the intensity of left side wall 213 and right side wall 214.
Referring to Fig. 8, also, the lower wall 212 of slot 210 include：By the outward opening of slot 210 inward towards acclivitous first guide plate 216 of upper side wall 211.When insertion section 122 enters slot 210, on the end abutment of insertion section 122 to the first guide plate 216, then insertion section 122 is inserted into slot 210 along the first guide plate 216.Limiting section 220 is located at the end of the first guide plate 216, then insertion section 122 moves to end along the first guide plate 216, and holding section 123 is connected together with limiting section 220.When holding section 123 and limiting section 220 are connected together, there is space B between lower surface and the first guide plate 216 of the plug 120 away from its end.
Lower wall 212 also includes the second guide plate 217.Second guide plate 217 is located at the first guide plate 216 close to the collar extension side of slot 210, and the side of the second guide plate 217 is connected with the first guide plate 216, and dorsad upper side wall 211 is tilted down opposite side.Second guide plate 217 increases the external-open bore of slot 210, facilitates insertion section 122 to enter.The upper surface 1221 of insertion section 122 is tilted gradually downward relative to supporting surface 127 by the side of the laterally closer end away from end.Specifically in the present embodiment, telescoping cylinder 130 shrinks, and drives insertion section 122 to rotate counterclockwise, tilts the end of insertion section 122.The upper surface 1221 of insertion section 122 is tilted gradually downward relative to supporting surface 127 by the side of the laterally closer end away from end, is that insertion section 122 rotates counterclockwise offer rotation space, is tilted in order to the end of insertion section 122.
Referring to Fig. 8, the bottom of slot 210 is provided with bearing surface 218, bearing surface 218 is parallel with the direct of travel of tractor 20.When hitch structure 100 and 200 connection transportation goods of trailer loading platform, supporting surface 127 is abutted against with slot 210, is that hitch structure 100 provides a supporting role face.When supporting surface 127 is connected on bearing surface 218, bearing surface 218 keeps relative stability with supporting surface 127, so that supporting surface 127 can smoothly support hitch structure 100.
Specifically in the present embodiment, holding section 123 includes baffle plate.Lower surface of the baffle plate protrusion located at insertion section 122.Limiting section 220 is located at one end of the lower wall 212 of slot 210, and limiting section 220 is block 221.Block 221 is located at the bottom end of slot 210.The upper surface of block 221 is bearing surface 218.When in the insertion of insertion section 122 slot 210, baffle plate fastens with block 221, the postive stop baffle of block 221.In other embodiments, holding section 123 can also be hook or buckle etc..Block 221 can also be the neck or buckle located at loading platform 201.
When plug 120 inserts slot 210, and the limiting section 220 of the holding section 123 of plug 120 and slot 210 is when abutting against, plug 120 has space A between the upper surface of its end and the upper side wall 211 of slot 210, has space B between lower surface and the lower wall 212 of slot 210 of the plug 120 away from its end.There is space at above-mentioned two in the low flat bed semi trailer 10 of present embodiment, insertion section 122 can be made to there is larger revolution space relative to slot 210, facilitate insertion section 122 to rotate in place, so that holding section 123 is separated with limiting section 220.
Referring to Fig. 10, when insertion section 122 is rotated relative to slot 210, driving supporting surface 127 to tilt, being separated with bearing surface 218.Insertion section 122 is abutted against by the bottom surface of transition face 128 and slot 210, is rotated for insertion section 122 and is provided support, convenient to rotate insertion section 122.Also, there is clearance C between the front end face of connecting portion 121 and loading platform 201, there is clearance D between the upper surface 1221 of insertion section 122 and the upper side wall 211 of slot 210, so that plug 120 smoothly departs from out of slot 210.
Fig. 3 and Fig. 4 is referred to, the hitch structure 100 of present embodiment also includes support member 140.One end of support member 140 is fixed in swing arm 110, and the other end of support member 140 is telescopic end 141.The telescopic end 141 of support member 140 is stretched between tractor and swing arm 110, and swing arm 110 is rotated, and the telescopic end 141 of support member 140 extends and is connected on tractor 20, and support member 140 is to support swing arm 110.When hitch structure 100 and trailer loading platform 200 depart from, support member 140 can support hitch structure 100, prevent from falling earthward under hitch structure 100, and influence tractor 20 is travelled.Specifically in the present embodiment, support member 140 is telescopic cylinder.In other embodiments, support member 140 can also be expansion link, folding rod or support.
Referring to Fig. 4, the one end of swing arm 110 away from tractor 20 is provided with lock pin 150, lock pin 150 is detachably connected swing arm 110 and connecting portion 121.When tractor 20 drives loading platform 201 to transport, telescoping cylinder 130 keeps fixed length, and swing arm 110 is in metastable state with plug 120.Lock pin 150 is each passed through swing arm 110 and connecting portion 121, prevents swing arm 110, from occurring relative motion, to prevent plug 120 from rotating with connecting portion 121, and being connected together between influence plug 120 and loading platform 201 keeps the stability in transportation.
Referring to Fig. 8, low flat bed semi trailer 10 also includes spacer pin 160, spacer pin 160 penetrates the insertion section 122 of loading platform 201 and plug 120, loading platform 201 is fixed with plug 120.Low flat bed semi trailer 10 is when needing to leave the port long-distance progress, Freeway Transport, support member 140 is packed up, after firmly being connected hitch structure 100 and loading platform 201 by spacer pin 160, i.e., low flat bed semi trailer 10 can carry out safety work under various road conditions.In other embodiments, when low flat bed semi trailer 10 is only progress low speed transport in port, spacer pin 160 can be omitted.
Although describing the present invention with reference to several exemplary embodiments, it is to be understood that, term used is explanation and exemplary and nonrestrictive term.Because the present invention can be embodied without departing from the spiritual or substantive of invention in a variety of forms, it is to be understood that, above-mentioned embodiment is not limited to any foregoing details, and should widely be explained in the spirit and scope that appended claims are limited, therefore the whole changes fallen into claim or its equivalent scope and remodeling all should be appended claims and covered.
Claims (16)
1. a kind of hitch structure, it is characterised in that including：
Swing arm, its one end is used to be connected with tractor；
Plug, including connected connecting portion and insertion section, the connecting portion is rotatably connected with the other end of the swing arm, and the insertion section is used to insert trailer loading platform and make the plug be connected with the trailer loading platform, and the insertion section is provided with the holding section with the trailer loading platform phase clamping；
Telescoping cylinder, connecting portion of its two ends respectively with the swing arm and the plug is connected, and the plug is rotated relative to the swing arm, and drives trailer loading platform described in the holding section clamping on the plug or released from the trailer loading platform.
2. hitch structure according to claim 1, it is characterised in that the holding section includes baffle plate, the baffle plate protrusion is located at the lower surface of the insertion section, and the baffle plate is used for and trailer loading platform phase clamping.
3. hitch structure according to claim 1, it is characterised in that the lower surface of the insertion section includes supporting surface, the supporting surface is plane.
4. hitch structure according to claim 1, it is characterised in that the lower surface of the insertion section is including the supporting surface for plane and is tilted down by supporting surface and extended the transition face for connecting the connecting portion.
5. hitch structure according to claim 4, it is characterised in that the upper surface of the insertion section is tilted gradually downward relative to the supporting surface by the side of the laterally closer end away from end.
6. hitch structure according to claim 1, it is characterized in that, the swing arm is oppositely arranged including two, in cygneous longeron and the crossbeam between two longerons, the longeron includes upper flange, lower wing plate and web, the web connects the upper flange and lower wing plate, the quantity of the plug is one, and it is rotationally connected between described two longerons.
7. hitch structure according to claim 6, it is characterized in that, the web of the longeron is provided with the first reinforcing plate, and the connecting portion of the plug includes two connecting plates and the support beam between two connecting plates being oppositely arranged, and the connecting plate is provided with the second reinforcing plate.
8. hitch structure according to claim 1, it is characterized in that, also include support member, one end of the support member is fixed in the swing arm, the other end of the support member is telescopic end, and the telescopic end is stretched between the tractor and the swing arm, and the swing arm is rotated, the telescopic end of the support member extends and is connected on the tractor, and the support member is to support the swing arm.
9. hitch structure according to claim 1, it is characterised in that the one end of the swing arm away from the tractor is provided with lock pin, the lock pin is detachably connected the swing arm and the connecting portion.
10. a kind of trailer loading platform, it is characterised in that the suspended structure including loading platform and below the loading platform, the loading platform, which is provided with slot, the slot, is provided with limiting section, and the limiting section is used for and hitch structure phase clamping.
11. trailer loading platform according to claim 10, it is characterized in that, the slot includes upper side wall, lower wall, left side wall and right side wall, the upper side wall, lower wall, left side wall and right side wall are mutually spliced to form tubaeform slot structure, the slot is more than the caliber size of medial extremity close to the bore of the opening of the outboard end of the loading platform, the limiting section is located at the medial extremity of the lower wall of the slot, and the limiting section is block.
12. trailer loading platform according to claim 11, it is characterised in that the upper side wall of the slot includes parallel to the loading platform surface, the lower wall：By the outward opening of the slot inward towards acclivitous first guide plate of the upper side wall.
13. trailer loading platform according to claim 12, it is characterized in that, the lower wall also includes the second guide plate, second guide plate is located at first guide plate close to the outward opening side of the slot, the side of second guide plate is connected with first guide plate, and dorsad the upper side wall is tilted down opposite side.
14. a kind of low flat bed semi trailer, it is characterized in that, including the trailer loading platform described in the hitch structure described in claim 1-9 any one and claim 10-13 any one, the hitch structure is connected together with the trailer loading platform, the plug is contained in the slot, the telescoping cylinder, which stretches out or retracted, drives the plug to rotate, and makes the holding section of the plug and the clamping of limiting section phase or disengaging of the slot.
15. low flat bed semi trailer according to claim 14, it is characterised in that also including spacer pin, the spacer pin penetrates the loading platform and the plug, the loading platform is fixed with the plug.
16. low flat bed semi trailer according to claim 14, it is characterized in that, when the plug inserts the slot, and the limiting section of the holding section of the plug and the slot is when abutting against, the plug has space between the upper surface of its end and slot upper side wall, has space between lower surface and slot lower wall of the plug away from its end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150848.1A CN107200073A (en) | 2016-03-16 | 2016-03-16 | Low flat bed semi trailer and its hitch structure, loading platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150848.1A CN107200073A (en) | 2016-03-16 | 2016-03-16 | Low flat bed semi trailer and its hitch structure, loading platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107200073A true CN107200073A (en) | 2017-09-26 |
Family
ID=59903812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610150848.1A Withdrawn CN107200073A (en) | 2016-03-16 | 2016-03-16 | Low flat bed semi trailer and its hitch structure, loading platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107200073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977651A (en) * | 2021-03-12 | 2021-06-18 | 扬州市伏尔坎机械制造有限公司 | Rear operation platform structure of low-temperature transportation semitrailer |
| CN113734305A (en) * | 2021-09-10 | 2021-12-03 | 山东广达威汽车科技有限公司 | Goose head detachable heavy equipment transport vehicle |
-
2016
- 2016-03-16 CN CN201610150848.1A patent/CN107200073A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977651A (en) * | 2021-03-12 | 2021-06-18 | 扬州市伏尔坎机械制造有限公司 | Rear operation platform structure of low-temperature transportation semitrailer |
| CN113734305A (en) * | 2021-09-10 | 2021-12-03 | 山东广达威汽车科技有限公司 | Goose head detachable heavy equipment transport vehicle |
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Application publication date: 20170926 |
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| WW01 | Invention patent application withdrawn after publication |