Modularized multifunctional flat semitrailer

Abstract

A modularized multifunctional flat semitrailer comprises a frame module, a front compartment module, a supporting module and an inserting module. The frame module is divided into four sections from front to back: a frame I, a frame II, a frame III and a frame IV; the first vehicle frame, the second vehicle frame, the third vehicle frame and the fourth vehicle frame are sequentially connected end to end through bolts in an assembled mode to form a main vehicle frame, and the main vehicle frame is used for transporting super-long pipelines. The first frame and the third frame are connected end to end through bolts in an assembled mode to form an auxiliary frame, and the auxiliary frame is used for transporting standard containers. The front compartment module is mounted on the front side of the frame I; the two sets of supporting modules are detachably installed on the first vehicle frame and the third vehicle frame correspondingly. And a plurality of plug-in mounting modules are arranged on the left side beam and the right side beam of the frame I and the left side beam and the right side beam of the frame III. Modularization design is carried out on the whole vehicle, all the modules can be manufactured synchronously, the process flow is shortened, the vehicle closing efficiency is improved, boxing transportation and follow-up assembly are facilitated, and all the modules are more convenient and faster to maintain and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, and specifically, it relates to a modular multi-functional flat semi-trailer. Background Art

[0002] The overall length of a conventional container flat semi-trailer is about 13 meters, which can meet the loading of 1 * 40-foot or 2 * 20-foot or 1 * 20-foot containers. However, for some customers with special requirements, especially overseas customers, this conventional container flat semi-trailer cannot meet the transportation of ultra-long pipelines with a length of about 17.8 meters. Therefore, it is necessary to design a flat semi-trailer that can meet the transportation of ultra-long pipelines, and at the same time, it can also be applicable to the transportation of conventional containers and can be conveniently shipped overseas.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Content of the Utility Model

[0004] The purpose of the utility model is to address the deficiencies of the prior art, and thus provide a modular multi-functional flat semi-trailer. The utility model modularizes the overall vehicle, and each module can be manufactured synchronously, shortening the process flow, improving the vehicle assembly efficiency, facilitating packing and transportation and subsequent assembly, and making the maintenance and replacement of each module more convenient.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a modular multi-functional flat semi-trailer, including a frame module, a front compartment module, a support module, and an insertion module;

[0006] The frame module is divided into four sections from front to back: Frame One, Frame Two, Frame Three, and Frame Four;

[0007] Frame One, Frame Two, Frame Three, and Frame Four are sequentially connected end to end by bolt assembly to form a main frame, and the main frame is used for transporting ultra-long pipelines;

[0008] Frame One and Frame Three are connected end to end by bolt assembly to form a sub-frame, and the sub-frame is used for transporting standard containers;

[0009] The front compartment module is installed on the front side of Frame One;

[0010] There are two sets of support modules, which are respectively detachably installed on Frame One and Frame Three, and are used to support ultra-long pipelines when the main frame is in use;

[0011] A number of insertion modules are provided on the left and right beams of Frame One and Frame Three, and are used to prevent ultra-long pipelines from falling to both sides when the main frame is in use.

[0012] Based on the above, large beam connection plates with a number of bolt through-holes evenly opened are welded at the rear ends of the two longitudinal beams of frame one, the front ends of the two longitudinal beams of frame two, the rear ends of the two longitudinal beams of frame two, the front ends of the two longitudinal beams of frame three, the rear ends of the two longitudinal beams of frame three, and the front ends of the two longitudinal beams of frame four;

[0013] When frame one, frame two, frame three, and frame four are connected to form the main frame, the large beam connection plates at the rear ends of the two longitudinal beams of frame one and the large beam connection plates at the front ends of the two longitudinal beams of frame two are butted and attached to each other front and back and fixedly connected by a number of bolts passing through the corresponding bolt through-holes. The large beam connection plates at the rear ends of the two longitudinal beams of frame two and the large beam connection plates at the front ends of the two longitudinal beams of frame three are butted and attached to each other front and back and fixedly connected by a number of bolts passing through the corresponding bolt through-holes. The large beam connection plates at the rear ends of the two longitudinal beams of frame three and the large beam connection plates at the front ends of the two longitudinal beams of frame four are butted and attached to each other front and back and fixedly connected by a number of bolts passing through the corresponding bolt through-holes;

[0014] When frame one and frame three are connected to form the sub-frame, the large beam connection plates at the rear ends of the two longitudinal beams of frame one and the large beam connection plates at the front ends of the two longitudinal beams of frame three are butted and attached to each other front and back and fixedly connected by a number of bolts passing through the corresponding bolt through-holes;

[0015] The bottom plate of frame two is concave downward between the two longitudinal beams of frame two to form a reserve groove for accommodating the support module.

[0016] Based on the above, the front compartment module includes a front compartment frame and a number of wooden piles. A number of first insertion and fixing boxes, which are spaced left and right and have open upper sides, are welded on the front side of the front seal frame of frame one. The front compartment frame is vertically arranged in the front upper side of the front seal frame of frame one in the left-right direction and is located directly above each first insertion and fixing box. A number of insertion and positioning structures corresponding to the first insertion and fixing boxes up and down are provided at the bottom of the lower frame of the front compartment frame. Each insertion and positioning structure is respectively inserted into each first insertion and fixing box. Each wooden pile is arranged vertically at intervals left and right at the rear of the front compartment frame. Each wooden pile is fixedly connected to the front compartment frame by a number of L-shaped connection plates. The lower ends of each wooden pile are flush with the bottom of the lower frame of the front compartment frame. The lower ends of each wooden pile correspondingly support on the front side edge part of the upper surface of the bottom plate of frame one. Front compartment braces are connected between the left side of the front compartment frame and the left side beam of frame one and between the right side of the front compartment frame and the right side beam of frame one. L-shaped angle guards are welded at the lower parts of the left side and the right side of the front compartment frame. The left L-shaped angle guard is closely attached to the left side of the front end part of the left side beam of frame one and fixedly connected by a number of bolts. The right L-shaped angle guard is closely attached to the right side of the front end part of the right side beam of frame one and fixedly connected by a number of bolts.

[0017] Based on the above, the front compartment frame includes a left frame, a right frame, an upper frame, and several first inserted square tube columns. Each of the first inserted square tube columns is arranged at intervals left and right between the left frame and the right frame and corresponds one by one vertically with each of the first inserted fixed boxes. The upper ends of the left frame, the right frame, and each of the first inserted square tube columns are flush. The upper frame is fixedly connected to the upper ends of the left frame, the right frame, and each of the first inserted square tube columns. A number of horizontally spaced horizontal beams are fixedly welded between the left frame and the leftmost first inserted square tube column, between adjacent two first inserted square tube columns, and between the right frame and the rightmost first inserted square tube column. The bottom of the lowermost horizontal beam is flush with the lower ends of the left frame and the right frame and is higher than the lower ends of each of the first inserted square tube columns. The lowermost horizontal beams form the lower frame of the front compartment frame. The section of the lower end of the first inserted square tube column that is lower than the lower frame is the inserted positioning structure. Each wooden pile is respectively arranged corresponding to the rear side of each of the first inserted square tube columns. The left and right sides of the wooden pile are respectively connected to the corresponding horizontal beams on its left and right sides through L-shaped connecting plates. Pulling plates are welded on the upper side of the middle of the left frame and the upper side of the middle of the right frame. The front end of the left front compartment brace is connected to the left pulling plate through a fastening bolt. The rear end of the left front compartment brace is connected to the left side beam of the first vehicle frame through a pin structure. The front end of the right front compartment brace is connected to the right pulling plate through a fastening bolt. The rear end of the right front compartment brace is connected to the right side beam of the first vehicle frame through a pin structure.

[0018] Based on the above, the support module includes two first support groups, two second support groups, and two third support groups. The two first support groups have the same structure and are symmetrically installed on the bottom plate of the first vehicle frame or the third vehicle frame left and right. The two second support groups have the same structure and are symmetrically installed on the bottom plate of the first vehicle frame or the third vehicle frame left and right and are located between the two first support groups. The two third support groups have the same structure and are symmetrically installed on the bottom plate of the first vehicle frame or the third vehicle frame left and right and are located between the two second support groups.

[0019] Based on the above, the first support group on the left side includes a first support block. The first support block is a long groove tube with an open bottom. The first support block is arranged in the front-rear direction on the upper surface left edge of the bottom plate of Frame 1 or Frame 3. A first backing plate is welded to the bottom of the first support block, and the first backing plate presses tightly on the upper surface of the bottom plate of Frame 1 or Frame 3. The cross-section of the upper side plate of the first support block is in an inverted hook shape, and the fold angle of the upper side plate of the first support block is located at its upper left side. A first rubber cushion is covered on the large slope surface on the right side of the fold angle of the upper side plate of the first support block. A number of first fixing irons are welded on the right side plate of the first support block, which are horizontally arranged at intervals in the front-rear direction. The first fixing irons are flush with the first backing plate, and the first fixing irons are fixedly connected to the bottom plate of Frame 1 or Frame 3 by bolts. A number of side beam fixing irons are welded on the left side plate of the first support block, which are vertically arranged at intervals in the front-rear direction. The lower part of the side beam fixing iron is lower than the first backing plate and fits against the left side surface of the left side beam of Frame 1 or Frame 3. The lower part of the side beam fixing iron is fixedly connected to the left side beam of Frame 1 or Frame 3 by bolts. A number of second fixing irons are welded on the upper surface of the first backing plate, and fixing pins that penetrate downward through the first backing plate are welded on the second fixing irons. The fixing pins are welded to the first backing plate. A number of plugging holes corresponding to the fixing pins up and down are opened on the bottom plate of Frame 1 or Frame 3. A pin sleeve is welded correspondingly at each plugging hole on the lower surface of the bottom plate of Frame 1 or Frame 3. Each fixing pin is respectively plugged into each plugging hole and coaxially plugged into each pin sleeve. A first pad iron horizontally arranged in the front-rear direction is welded on the lower surface of the bottom plate of Frame 1 or Frame 3 at the lower right edge of the first backing plate. The first pad iron penetrates through and is welded to each through beam of Frame 1 or Frame 3.

[0020] Based on the above, the second support group on the left side includes a second support block. The second support block is a long groove tube with an open bottom. The second support block is arranged in the front-rear direction on the upper left part of the bottom plate of Frame 1 or Frame 3 and is located on the right side of the first support block on the left side. A second backing plate is welded to the bottom of the second support block, and the second backing plate presses tightly on the upper surface of the bottom plate of Frame 1 or Frame 3. The cross-section of the upper side plate of the second support block is in an inverted hook shape, and a second rubber cushion is fixedly covered on the upper surface of the upper side plate of the second support block. A number of third fixing irons are welded on both side plates of the second support block, which are horizontally arranged at intervals in the front-rear direction. The third fixing irons are flush with the second backing plate, and the third fixing irons are fixedly connected to the bottom plate of Frame 1 or Frame 3 by bolts. A second pad iron horizontally arranged in the front-rear direction is welded on the lower surface of the bottom plate of Frame 1 or Frame 3 at the lower left edge of the second backing plate. A third pad iron horizontally arranged in the front-rear direction is welded on the lower surface of the bottom plate of Frame 1 or Frame 3 at the lower right edge of the second backing plate. The second pad iron and the third pad iron penetrate through and are welded to each through beam of Frame 1 or Frame 3.

[0021] Based on the above, the third support group on the left side includes a third support block. The third support block is a long groove tube with an open bottom. The third support block is arranged in the middle left on the upper surface of the bottom plate of Frame 1 or Frame 3 in the front-back direction and is located on the right side of the second support block on the left side. A third backing plate is welded to the bottom of the third support block, and the third backing plate presses tightly on the upper surface of the bottom plate of Frame 1 or Frame 3. The cross-section of the upper side plate of the third support block is in an inverted hook shape, and a third rubber cushion is fixedly covered on the upper surface of the upper side plate of the third support block. On the upper surface of the bottom plate of Frame 1 or Frame 3, several blocks of stoppers for restricting the left-right position of the third support block are welded on both the left and right sides of the third backing plate. On the lower surface of the bottom plate of Frame 1 or Frame 3, a fourth pad iron horizontally arranged in the front-back direction is welded at the lower part of the left edge of the third backing plate. On the lower surface of the bottom plate of Frame 1 or Frame 3, a fifth pad iron horizontally arranged in the front-back direction is welded at the lower part of the right edge of the second backing plate. The fourth pad iron and the fifth pad iron penetrate and are welded to each through beam of Frame 1 or Frame 3.

[0022] Based on the above, each insertion module has the same structure. The insertion module installed on the right side beam of Frame 1 includes a second insertion fixing box and a second insertion square tube column. The second insertion fixing box has a U-shaped box structure with open upper, lower, and left sides. A front folding plate bent forward is integrally formed on the left side of the front side plate of the second insertion fixing box, and a rear folding plate bent backward is integrally formed on the left side of the rear side plate of the second insertion fixing box. The front folding plate and the rear folding plate are both assembled and connected to the right side surface of the right side beam of Frame 1 through bolts. A slanting section bent left and downward is provided at the lower side of the second insertion square tube column. The lower end of the second insertion square tube column is inserted into the second insertion fixing box in a matching manner. A first limit block blocking the upper side of the right side plate of the second insertion fixing box is welded on the right side surface of the lower end of the second insertion square tube column. A second limit block is welded on the right side surface of the upper end of the second insertion square tube column. The distance between the second limit block and the upper end of the second insertion square tube column is equal to the distance between the first limit block and the lower end of the second insertion square tube column.

[0023] Based on the above, several triangular support plates are welded between the lower surface of the bottom plate of Frame 1 or Frame 3 and the longitudinal beam of Frame 1 or Frame 3. The triangular support plates are arranged at intervals in the front-back direction below the second stopper. The triangular support plates are vertically arranged and correspond to the corresponding third fixing irons up and down. The third fixing iron is fixedly connected to the triangular support plate through bolts. Two clamping grooves corresponding to the second pad iron and the third pad iron respectively are provided on the upper side of the triangular support plate.

[0024] The utility model has substantial features and progress compared with the prior art. Specifically, the vehicle as a whole is divided into several modules: a frame module, a front compartment module, a support module, and an insertion module, realizing modular design. The frame module is further divided into four sections from front to back: frame one, frame two, frame three, and frame four. In this way, each module can be manufactured synchronously, shortening the process flow, improving the vehicle assembly efficiency, facilitating packing and transportation, as well as subsequent assembly. Maintenance and replacement of each module are more convenient, and the same modules between multiple vehicle products can be interchanged. Among them, the frame module can be assembled according to functional requirements. When frame one, frame two, frame three, and frame four are sequentially connected end to end by bolt assembly to form the main frame, the length can reach 18.15 meters, which can meet the transportation requirements of ultra-long pipelines needed by customers. When frame one and frame three are connected end to end by bolt assembly to form the sub-frame, the length can reach 12.37 meters, which can be used as a normal 40-foot container flatbed truck. The assembly process of each module of the utility model is simple, highly reliable, and practical.

[0025] Furthermore, when the support module is assembled on frame one and frame three, the transportation mode and space of the semi-trailer can be adjusted by adjusting the installation directions of the second support block and the third support block, so as to adapt to the transportation of ultra-long pipelines with different pipe diameters and realize the transformation of transportation functions.

[0026] Furthermore, the bottom plate of frame two is concave downward between the two longitudinal beams of frame two to form a storage groove, which is used to accommodate the support module during packing and transportation, increasing the usage function.

[0027] Furthermore, the second insertion square pipe column of the insertion module can change the up-and-down insertion direction, realizing two different transportation spaces and the transformation of transportation functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the schematic diagram of the whole vehicle structure of the utility model.

[0029] Figure 2 is Figure 1 the top view of

[0030] Figure 3 is the schematic diagram of the frame module of the utility model in the state of the main frame.

[0031] Figure 4 is Figure 3 the top view of

[0032] Figure 5 is the schematic diagram of the frame module of the utility model in the state of the sub-frame.

[0033] Figure 6 is the top view of the utility model.

[0034] Figure 7 is the axonometric view of the front compartment module of the present utility model Figure One .

[0035] Figure 8 is the axonometric view of the front compartment module of the present utility model Figure Two .

[0036] Figure 9 is the front view of the front compartment module of the present utility model.

[0037] Figure 10 is the right view of the front compartment module of the present utility model.

[0038] Figure 11 is the schematic diagram of the installation structure of the support module of the present utility model.

[0039] Figure 12 is Figure 11 the partial enlarged view at A in

[0040] Figure 13 is Figure 11 the partial enlarged view at B in

[0041] Figure 14 is Figure 11 the partial enlarged view at C in

[0042] Figure 15 is the schematic diagram of the structure of the plug-in module in the first embodiment of the present utility model.

[0043] Figure 16 is Figure 15 the right view of

[0044] Figure 17 is the sectional view of the second vehicle frame of the present utility model.

[0045] Figure 18 is the connection schematic diagram of the first vehicle frame and the second vehicle frame of the present utility model.

[0046] Figure 19 is the schematic diagram of transporting an extra-long pipeline in one installation mode of the support module and the plug-in module of the present utility model.

[0047] Figure 20 is the schematic diagram of transporting an extra-long pipeline in another installation mode of the support module and the plug-in module of the present utility model.

[0048] In the figure: 1. Frame module; 2. Front compartment module; 3. Support module; 4. Insertion module; 5. Frame one; 6. Frame two; 7. Frame three; 8. Frame four; 9. Ultra-long pipeline; 10. Girder connecting plate; 11. Reserve tank; 12. Wooden stake; 13. First insertion fixing box; 14. L-shaped connecting plate; 15. Front compartment tension brace; 16. L-shaped corner guard plate; 17. Left frame; 18. Right frame; 19. Upper frame; 20. First insertion square pipe column; 21. Horizontal support beam; 22. Tie plate; 23. First support block; 24. First backing plate; 25. First rubber cushion; 26. First fixing iron; 27. Side beam fixing iron; 28. Second fixing iron; 29. Fixed pin; 30. Pin sleeve; 31. First packing iron; 32. Second support block; 33. Second backing plate; 34. Second rubber cushion; 35. Third fixing iron; 36. Second packing iron; 37. Third packing iron; 38. Third support block; 39. Third backing plate; 40. Third rubber cushion; 41. Stop block; 42. Fourth packing iron; 43. Fifth packing iron; 44. Second insertion fixing box; 45. Second insertion square pipe column; 46. First limit block; 47. Second limit block; 48. Triangular support plate; 49. Front sealing frame. Detailed implementation mode

[0049] The technical solution of the present utility model will be further described in detail below through specific implementation modes.

[0050] Embodiment 1

[0051] As Figure 1-19 shown, a modular multi-functional flat semi-trailer includes a frame module 1, a front compartment module 2, a support module 3, and an insertion module 4;

[0052] The frame module 1 is divided into four sections from front to back: frame one 5, frame two 6, frame three 7, and frame four 8;

[0053] Frame one 5, frame two 6, frame three 7, and frame four 8 are sequentially connected by bolt assembly to form a main frame, and the main frame is used for transporting ultra-long pipelines 9. Here, the length of the main frame can reach 18.15 meters, which can meet the transportation of ultra-long pipelines 9 required by customers;

[0054] Frame one 5 and frame three 7 are connected by bolt assembly at the head and tail to form a sub-frame, and the sub-frame is used for transporting standard containers. Here, the length of the sub-frame can reach 12.37 meters, and it can be used as a normal 40-foot container flatbed truck;

[0055] The front compartment module 2 is installed on the front side of frame one 5;

[0056] There are two sets of support modules 3, which are respectively detachably installed on the first frame 5 and the third frame 7, and are used to support the ultra-long pipeline 9 when the main frame is in use; when the frame module is the main frame, the support modules 3 are installed on the first frame 5 and the third frame 7, as shown in Figure 3 and Figure 4 shown; when the frame module is the sub-frame, the support modules 3 are removed from the first frame 5 and the third frame 7, as shown in Figure 5 and 6 shown;

[0057] A number of insertion modules 4 are provided on the left and right beams of the first frame 5 and the left and right beams of the third frame 7, and are used to prevent the ultra-long pipeline 9 from falling to both sides when the main frame is in use.

[0058] In this embodiment, large beam connection plates 10 with a number of bolt through holes evenly opened are welded at the rear ends of the two longitudinal beams of the first frame 5, the front ends of the two longitudinal beams of the second frame 6, the rear ends of the two longitudinal beams of the second frame 6, the front ends of the two longitudinal beams of the third frame 7, the rear ends of the two longitudinal beams of the third frame 7, and the front ends of the two longitudinal beams of the fourth frame 8;

[0059] When the first frame 5, the second frame 6, the third frame 7, and the fourth frame 8 are connected to form the main frame, the large beam connection plates 10 at the rear ends of the two longitudinal beams of the first frame 5 and the large beam connection plates 10 at the front ends of the two longitudinal beams of the second frame 6 are butted and attached front and back and are fixedly connected by a number of bolts passing through the corresponding bolt through holes, and the large beam connection plates 10 at the rear ends of the two longitudinal beams of the second frame 6 and the large beam connection plates 10 at the front ends of the two longitudinal beams of the third frame 7 are butted and attached front and back and are fixedly connected by a number of bolts passing through the corresponding bolt through holes, and the large beam connection plates 10 at the rear ends of the two longitudinal beams of the third frame 7 and the large beam connection plates 10 at the front ends of the two longitudinal beams of the fourth frame 8 are butted and attached front and back and are fixedly connected by a number of bolts passing through the corresponding bolt through holes;

[0060] When the first frame 5 and the third frame 7 are connected to form the sub-frame, the large beam connection plates 10 at the rear ends of the two longitudinal beams of the first frame 5 and the large beam connection plates 10 at the front ends of the two longitudinal beams of the third frame 7 are butted and attached front and back and are fixedly connected by a number of bolts passing through the corresponding bolt through holes;

[0061] The bottom plate of the second frame 6 is recessed downward between the two longitudinal beams of the second frame 6 to form a storage groove 11 for storing the support module 3, so that when packing and transporting, the support module 3 does not occupy space.

[0062] In this embodiment, each module can be synchronously manufactured separately, shortening the process flow, improving the vehicle assembly efficiency, facilitating packing and transportation as well as subsequent assembly. The maintenance and replacement of each module are more convenient, and the same modules between multiple vehicle products can be interchanged. For example, if multiple such flatbed semi-trailers are sold overseas and the frame two 6 of one of the flatbed semi-trailers of this type is damaged, the frame two 6 can be replaced separately, or directly replaced with the frame two 6 of another flatbed semi-trailer of this type.

[0063] In this embodiment, the front compartment module 2 includes a front compartment frame and a plurality of wooden piles 12. A plurality of first insertion and fixing boxes 13 which are spaced left and right and have open upper sides are welded on the front side surface of the front seal frame 49 of the first frame 5. The front compartment frame is vertically arranged in the front upper side of the front seal frame 49 of the first frame 5 in the left-right direction and is located directly above each first insertion and fixing box 13. A plurality of insertion and positioning structures corresponding to the upper and lower positions of each first insertion and fixing box 13 are arranged at the bottom of the lower border of the front compartment frame. Each insertion and positioning structure is respectively inserted into each first insertion and fixing box 13. Each wooden pile 12 is vertically arranged at intervals left and right at the rear side of the front compartment frame. Each wooden pile 12 is fixedly connected to the front compartment frame through a plurality of L-shaped connecting plates 14. The lower ends of each wooden pile 12 are flush with the bottom of the lower border of the front compartment frame. The lower ends of each wooden pile 12 correspondingly support on the front side edge part of the upper surface of the bottom plate of the first frame 5. Front compartment braces 15 are connected between the left side edge of the front compartment frame and the left side beam of the first frame 5 and between the right side edge of the front compartment frame and the right side beam of the first frame 5. L-shaped corner guards 16 are welded to the lower side parts of the left side edge and the right side edge of the front compartment frame. The left L-shaped corner guard 16 is closely attached to the left front end part of the left side beam of the first frame 5 and is fixedly connected through a plurality of bolts. The right L-shaped corner guard 16 is closely attached to the right front end part of the right side beam of the first frame 5 and is fixedly connected through a plurality of bolts. On the one hand, the wooden piles 12 can strengthen the overall strength of the front compartment module 2, and on the other hand, they can serve as a buffer structure to avoid the loss of transported materials. The front compartment frame can be quickly assembled and connected to the first frame 5 through the insertion and positioning structure and the first insertion and fixing box 13. At the same time, the front compartment braces 15 can enhance the connection reliability between the front compartment frame and the first frame 5.

[0064] In this embodiment, the front compartment frame includes a left side frame 17, a right side frame 18, an upper side frame 19, and a plurality of first inserted square tube columns 20. The first inserted square tube columns 20 are arranged at intervals left and right between the left side frame 17 and the right side frame 18 and are respectively in one-to-one vertical correspondence with the respective first inserted fixed boxes 13. The upper ends of the left side frame 17, the right side frame 18, and the first inserted square tube columns 20 are flush. The upper side frame 19 is fixedly connected to the upper ends of the left side frame 17, the right side frame 18, and the first inserted square tube columns 20. A plurality of horizontally spaced horizontal support beams 21 are fixedly welded between the left side frame 17 and the leftmost first inserted square tube column 20, between adjacent first inserted square tube columns 20, and between the right side frame 18 and the rightmost first inserted square tube column 20. The bottom of the lowermost horizontal support beam 21 is flush with the lower ends of the left side frame 17 and the right side frame 18 and is higher than the lower ends of the first inserted square tube columns 20. The lowermost horizontal support beams 21 form the lower side frame of the front compartment frame. The section of the lower end of the first inserted square tube column 20 that is lower than the lower side frame is the inserted positioning structure. Each wooden pile 12 is respectively arranged corresponding to the rear sides of the first inserted square tube columns 20. The left and right sides of the wooden pile 12 are respectively connected to the corresponding horizontal support beams 21 on its left and right sides through L-shaped connecting plates 14. Pulling plates 22 are welded to the upper sides of the middles of the left side frame 17 and the right side frame 18. The front end of the left front compartment brace 15 is connected to the left pulling plate 22 through a fastening bolt. The rear end of the left front compartment brace 15 is connected to the left side beam of the first vehicle frame 5 through a pin structure. The front end of the right front compartment brace 15 is connected to the right pulling plate 22 through a fastening bolt. The rear end of the right front compartment brace 15 is connected to the right side beam of the first vehicle frame 5 through a pin structure.

[0065] In this embodiment, the support module 3 includes two first support groups, two second support groups, and two third support groups. The two first support groups have the same structure and are symmetrically installed on the bottom plates of the first vehicle frame 5 or the third vehicle frame 7 left and right. The two second support groups have the same structure and are symmetrically installed on the bottom plates of the first vehicle frame 5 or the third vehicle frame 7 left and right and are located between the two first support groups. The two third support groups have the same structure and are symmetrically installed on the bottom plates of the first vehicle frame 5 or the third vehicle frame 7 left and right and are located between the two second support groups.

[0066] In this embodiment, the first support group on the left side includes a first support block 23. The first support block 23 is a long groove tube with an open bottom. The first support block 23 is arranged on the upper surface left edge of the bottom plate of the first vehicle frame 5 or the third vehicle frame 7 in the front-back direction. A first cushion plate 24 is welded to the bottom of the first support block 23, and the first cushion plate 24 is tightly pressed on the upper surface of the bottom plate of the first vehicle frame 5 or the third vehicle frame 7. The cross-section of the upper side plate of the first support block 23 is an inverted hook shape, and the fold angle of the upper side plate of the first support block 23 is located at its upper left side. A first rubber cushion skin 25 is covered on the large slope surface on the right side of the fold angle of the upper side plate of the first support block 23. A plurality of first fixing irons 26 that are spaced front and back and horizontally arranged are welded to the right side plate of the first support block 23. The first fixing irons 26 are flush with the first cushion plate 24, and the first fixing irons 26 are fixedly connected to the bottom plate of the first vehicle frame 5 or the third vehicle frame 7 by bolts. A plurality of side beam fixing irons 27 that are spaced front and back and vertically arranged are welded to the left side plate of the first support block 23. The lower side of the side beam fixing iron 27 is lower than the first cushion plate 24 and fits against the left side surface of the left side beam of the first vehicle frame 5 or the third vehicle frame 7. The lower side of the side beam fixing iron 27 is fixedly connected to the left side beam of the first vehicle frame 5 or the third vehicle frame 7 by bolts. A plurality of second fixing irons 28 are welded to the upper surface of the first cushion plate 24, and fixing pins 29 that penetrate downward through the first cushion plate 24 are welded to the second fixing irons 28. The fixing pins 29 are welded to the first cushion plate 24. A plurality of insertion holes corresponding to each fixing pin 29 up and down are formed in the bottom plate of the first vehicle frame 5 or the third vehicle frame 7. A pin sleeve 30 is welded to the lower surface of the bottom plate of the first vehicle frame 5 or the third vehicle frame 7 corresponding to each insertion hole. Each fixing pin 29 is respectively inserted into each insertion hole and coaxially inserted into each pin sleeve 30. A first pad iron 31 that is horizontally arranged in the front-back direction is welded to the lower surface of the bottom plate of the first vehicle frame 5 or the third vehicle frame 7 at the lower right edge of the first cushion plate 24. The first pad iron 31 penetrates through and is welded to each through beam of the first vehicle frame 5 or the third vehicle frame 7.

[0067] In this embodiment, the second support group on the left side includes a second support block 32. The second support block 32 is a long groove tube with an open bottom. The second support block 32 is arranged in the left part of the upper surface of the bottom plate of the first frame 5 or the third frame 7 in the front-rear direction and is located on the right side of the first support block 23 on the left side. A second backing plate 33 is welded to the bottom of the second support block 32. The second backing plate 33 is tightly pressed on the upper surface of the bottom plate of the first frame 5 or the third frame 7. The cross-section of the upper side plate of the second support block 32 is in an inverted hook shape. A second rubber cushion 34 is fixedly covered on the upper surface of the upper side plate of the second support block 32. A plurality of third fixing irons 35 that are horizontally arranged at intervals in the front-rear direction are welded on both side plates of the second support block 32. The third fixing irons 35 are flush with the second backing plate 33. The third fixing irons 35 are fixedly connected to the bottom plate of the first frame 5 or the third frame 7 by bolts. A second shim 36 that is horizontally arranged in the front-rear direction is welded to the lower surface of the bottom plate of the first frame 5 or the third frame 7 at the lower part of the left edge of the second backing plate 33. A third shim 37 that is horizontally arranged in the front-rear direction is welded to the lower surface of the bottom plate of the first frame 5 or the third frame 7 at the lower part of the right edge of the second backing plate 33. The second shim 36 and the third shim 37 penetrate and are welded to each through beam of the first frame 5 or the third frame 7.

[0068] In this embodiment, the third support group on the left side includes a third support block 38. The third support block 38 is a long groove tube with an open bottom. The third support block 38 is arranged in the middle left part of the upper surface of the bottom plate of the first frame 5 or the third frame 7 in the front-rear direction and is located on the right side of the second support block 32 on the left side. A third backing plate 39 is welded to the bottom of the third support block 38. The third backing plate 39 is tightly pressed on the upper surface of the bottom plate of the first frame 5 or the third frame 7. The cross-section of the upper side plate of the third support block 38 is in an inverted hook shape. A third rubber cushion 40 is fixedly covered on the upper surface of the upper side plate of the third support block 38. A plurality of stoppers 41 for restricting the left and right positions of the third support block 38 are welded to both the left and right sides of the upper surface of the bottom plate of the first frame 5 or the third frame 7 at the third backing plate 39. A fourth shim 42 that is horizontally arranged in the front-rear direction is welded to the lower surface of the bottom plate of the first frame 5 or the third frame 7 at the lower part of the left edge of the third backing plate 39. A fifth shim 43 that is horizontally arranged in the front-rear direction is welded to the lower surface of the bottom plate of the first frame 5 or the third frame 7 at the lower part of the right edge of the second backing plate 33. The fourth shim 42 and the fifth shim 43 penetrate and are welded to each through beam of the first frame 5 or the third frame 7.

[0069] In this embodiment, the structures of all the insertion modules 4 are the same. The insertion module 4 installed on the right side beam of the first frame 5 includes a second insertion fixing box 44 and a second insertion square tube column 45. The second insertion fixing box 44 has a U-shaped box structure with openings on the upper side, lower side, and left side. A front folding plate bent forward is integrally formed on the left side edge of the front side plate of the second insertion fixing box 44, and a rear folding plate bent backward is integrally formed on the left side edge of the rear side plate of the second insertion fixing box 44. Both the front folding plate and the rear folding plate are assembled and connected to the right side surface of the right side beam of the first frame 5 by bolts. A slanting section bent downward and leftward is provided at the lower side part of the second insertion square tube column 45. The lower end part of the second insertion square tube column 45 is inserted into the second insertion fixing box 44 in a matching manner. A first limiting block 46 blocking the upper side of the right side plate of the second insertion fixing box 44 is welded on the right side surface of the lower end part of the second insertion square tube column 45. A second limiting block 47 is welded on the right side surface of the upper end part of the second insertion square tube column 45. The distance between the second limiting block 47 and the upper end of the second insertion square tube column 45 is equal to the distance between the first limiting block 46 and the lower end of the second insertion square tube column 45.

[0070] In this embodiment, several triangular support plates 48 are welded between the lower surface of the bottom plate of the first frame 5 or the third frame 7 and the longitudinal beam of the first frame 5 or the third frame 7 at intervals in the front and rear direction below the second stop block. The triangular support plates 48 are vertically arranged and correspond to the corresponding third fixing irons 35 up and down. The third fixing irons 35 are fixedly connected to the triangular support plates 48 by bolts. Two clamping grooves corresponding to the second cushion iron 36 and the third cushion iron 37 respectively are provided on the upper side edge of the triangular support plate 48.

[0071] In this embodiment, the large inclined surface of the first support block 23 faces the large inclined surface of the second support block 32, and the large inclined surfaces of the two third support blocks 38 face each other, so as to support the ultra-long pipeline 9 with a relatively large diameter, as Figure 16 shown.

[0072] Embodiment 2

[0073] The difference from Embodiment 1 is that, as Figure 20 shown, here the installation directions of both the second support block 32 and the third support block 38 are rotated by 180°, and at the same time, the up-and-down insertion direction of the second insertion square tube column 45 is reversed by 180°. The large inclined surface of the first support block 23 faces the small inclined surface of the second support block 32, and the large inclined surface of the second support block 32 faces the large inclined surface of the third support block 38, so as to support the ultra-long pipeline 9 with a relatively small diameter, thereby changing the installation method of the support module 3 and the insertion module 4, and further adjusting the transportation method and transportation space of the semi-trailer to adapt to the transportation of ultra-long pipelines 9 with different pipe diameters and realizing the transformation of the transportation function.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them; although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present utility model or perform equivalent replacements on some technical features; without departing from the spirit of the technical solutions of the present utility model, they should all be covered within the scope of the technical solutions claimed by the present utility model.

Claims

1. A modular multi-functional flat semi-trailer, characterized in that: It includes a frame module, a front compartment module, a support module, and an insertion module; The frame module is divided into four sections from front to back: Frame One, Frame Two, Frame Three, and Frame Four; Frame One, Frame Two, Frame Three, and Frame Four are sequentially connected end to end by bolt assembly to form a main frame, which is used for transporting ultra-long pipelines; Frame One and Frame Three are connected end to end by bolt assembly to form a sub-frame, which is used for transporting standard containers; The front compartment module is installed on the front side of Frame One; There are two sets of support modules, which are respectively detachably installed on Frame One and Frame Three, and are used to support ultra-long pipelines when using the main frame; Several insertion modules are provided on the left and right beams of Frame One and on the left and right beams of Frame Three, and are used to prevent ultra-long pipelines from falling to both sides when using the main frame.

2. The modular multi-functional flat semi-trailer according to claim 1, wherein: Large beam connection plates with a number of bolt through-holes evenly opened are welded at the rear ends of the two longitudinal beams of Frame One, the front ends of the two longitudinal beams of Frame Two, the rear ends of the two longitudinal beams of Frame Two, the front ends of the two longitudinal beams of Frame Three, the rear ends of the two longitudinal beams of Frame Three, and the front ends of the two longitudinal beams of Frame Four; When Frame One, Frame Two, Frame Three, and Frame Four are connected to form a main frame, the large beam connection plates at the rear ends of the two longitudinal beams of Frame One and the large beam connection plates at the front ends of the two longitudinal beams of Frame Two are butted and attached front to back and fixedly connected by a number of bolts passing through the corresponding bolt through-holes, the large beam connection plates at the rear ends of the two longitudinal beams of Frame Two and the large beam connection plates at the front ends of the two longitudinal beams of Frame Three are butted and attached front to back and fixedly connected by a number of bolts passing through the corresponding bolt through-holes, and the large beam connection plates at the rear ends of the two longitudinal beams of Frame Three and the large beam connection plates at the front ends of the two longitudinal beams of Frame Four are butted and attached front to back and fixedly connected by a number of bolts passing through the corresponding bolt through-holes; When Frame One and Frame Three are connected to form a sub-frame, the large beam connection plates at the rear ends of the two longitudinal beams of Frame One and the large beam connection plates at the front ends of the two longitudinal beams of Frame Three are butted and attached front to back and fixedly connected by a number of bolts passing through the corresponding bolt through-holes; The bottom plate of Frame Two is recessed downward between the two longitudinal beams of Frame Two to form a storage groove for storing the support module.

3. The modular multi-functional flat semi-trailer according to claim 1, characterized in that: The front compartment module includes a front compartment frame and several wooden stakes. A plurality of first insertion and fixing boxes, which are spaced left and right and have open upper sides, are welded on the front side of the front seal frame of the first vehicle frame. The front compartment frame is vertically arranged in the upper front side of the front seal frame of the first vehicle frame in the left-right direction and is located directly above each first insertion and fixing box. A plurality of insertion and positioning structures corresponding to the upper and lower positions of each first insertion and fixing box are arranged at the bottom of the lower border of the front compartment frame. Each insertion and positioning structure is respectively inserted into each first insertion and fixing box. Each wooden stake is vertically arranged at intervals left and right at the rear side of the front compartment frame. Each wooden stake is fixedly connected to the front compartment frame through a plurality of L-shaped connecting plates. The lower ends of each wooden stake are flush with the bottom of the lower border of the front compartment frame. The lower ends of each wooden stake correspondingly support on the front side edge part of the upper surface of the bottom plate of the first vehicle frame. Front compartment braces are connected between the left side edge of the front compartment frame and the left side beam of the first vehicle frame and between the right side edge of the front compartment frame and the right side beam of the first vehicle frame. L-shaped angle guards are welded to the lower side parts of the left side edge and the right side edge of the front compartment frame. The left L-shaped angle guard is closely attached to the left side of the front end part of the left side beam of the first vehicle frame and is fixedly connected through a plurality of bolts. The right L-shaped angle guard is closely attached to the right side of the front end part of the right side beam of the first vehicle frame and is fixedly connected through a plurality of bolts.

4. The modular multi-functional flat semi-trailer according to claim 3, characterized in that: The front compartment frame includes a left border, a right border, an upper border and several first insertion square tube columns. Each first insertion square tube column is arranged at intervals left and right between the left border and the right border and corresponds to each first insertion and fixing box one by one in the upper and lower positions. The upper ends of the left border, the right border and each first insertion square tube column are flush. The upper border is fixedly connected to the upper ends of the left border, the right border and each first insertion square tube column. A plurality of horizontally spaced beams are fixedly welded between the left border and the leftmost first insertion square tube column, between adjacent two first insertion square tube columns, and between the right border and the rightmost first insertion square tube column. The bottom of the lowermost horizontally spaced beam is flush with the lower ends of the left border and the right border and is higher than the lower ends of each first insertion square tube column. The lowermost horizontally spaced beams form the lower border of the front compartment frame. The section of the lower end part of the first insertion square tube column that is lower than the lower border is the said insertion and positioning structure. Each wooden stake is respectively arranged corresponding to each first insertion square tube column at the rear side. The left and right sides of the wooden stake are respectively connected to the horizontally spaced beams corresponding to its left and right sides through L-shaped connecting plates. Tie plates are welded to the upper sides of the middle parts of the left border and the right border. The front end of the left front compartment brace is connected to the left tie plate through a fastening bolt. The rear end of the left front compartment brace is connected to the left side beam of the first vehicle frame through a pin structure. The front end of the right front compartment brace is connected to the right tie plate through a fastening bolt. The rear end of the right front compartment brace is connected to the right side beam of the first vehicle frame through a pin structure.

5. The modular multi-functional flat semi-trailer according to claim 1, characterized in that: The support module includes two first support groups, two second support groups, and two third support groups. The two first support groups have the same structure and are symmetrically installed on the bottom plate of Frame 1 or Frame 3 from left to right. The two second support groups have the same structure and are symmetrically installed on the bottom plate of Frame 1 or Frame 3 from left to right and are located between the two first support groups. The two third support groups have the same structure and are symmetrically installed on the bottom plate of Frame 1 or Frame 3 from left to right and are located between the two second support groups.

6. The modular multi-functional flat semi-trailer according to claim 5, characterized in that: The first support group on the left side includes a first support block. The first support block is a long groove tube with an open bottom. The first support block is arranged along the front-rear direction on the left edge of the upper surface of the bottom plate of Frame 1 or Frame 3. A first backing plate is welded to the bottom of the first support block, and the first backing plate tightly presses on the upper surface of the bottom plate of Frame 1 or Frame 3. The cross-section of the upper side plate of the first support block is in an inverted hook shape, and the fold angle of the upper side plate of the first support block is located at its upper left side. A first rubber cushion is covered on the large inclined plane on the right side of the fold angle of the upper side plate of the first support block. Several first fixing irons are welded on the right side plate of the first support block at intervals in the front-rear direction and are horizontally arranged. The first fixing irons are flush with the first backing plate, and the first fixing irons are fixedly connected to the bottom plate of Frame 1 or Frame 3 by bolts. Several side beam fixing irons are welded on the left side plate of the first support block at intervals in the front-rear direction and are vertically arranged. The lower part of the side beam fixing iron is lower than the first backing plate and fits against the left side surface of the left side beam of Frame 1 or Frame 3. The lower part of the side beam fixing iron is fixedly connected to the left side beam of Frame 1 or Frame 3 by bolts. Several second fixing irons are welded on the upper surface of the first backing plate, and fixing pins that penetrate downward through the first backing plate are welded on the second fixing irons. The fixing pins are welded to the first backing plate. Several plugging holes corresponding to the fixing pins up and down are opened on the bottom plate of Frame 1 or Frame 3. A pin sleeve is welded correspondingly at each plugging hole on the lower surface of the bottom plate of Frame 1 or Frame 3. Each fixing pin is respectively plugged into each plugging hole and coaxially plugged into each pin sleeve. A first pad iron horizontally arranged along the front-rear direction is welded at the lower part of the right edge of the first backing plate on the lower surface of the bottom plate of Frame 1 or Frame 3. The first pad iron penetrates and is welded to each through beam of Frame 1 or Frame 3.

7. The modular multi-functional flat semi-trailer according to claim 6, characterized in that: The second support group on the left side includes a second support block, which is a long groove pipe with an open bottom. The second support block is arranged along the front-rear direction on the upper left side of the bottom plate of Frame 1 or Frame 3 and is located on the right side of the first support block on the left side. A second backing plate is welded to the bottom of the second support block, and the second backing plate presses tightly on the upper surface of the bottom plate of Frame 1 or Frame 3. The cross-section of the upper side plate of the second support block is in an inverted hook shape, and the upper surface of the upper side plate of the second support block is fixedly covered with a second rubber cushion skin. A number of third fixing irons, which are horizontally arranged at intervals in the front-rear direction, are welded to both side plates of the second support block. The third fixing irons are flush with the second backing plate, and the third fixing irons are fixedly connected to the bottom plate of Frame 1 or Frame 3 by bolts. A second shim iron, which is horizontally arranged along the front-rear direction, is welded to the lower left edge of the bottom surface of the bottom plate of Frame 1 or Frame 3 below the second backing plate. A third shim iron, which is horizontally arranged along the front-rear direction, is welded to the lower right edge of the bottom surface of the bottom plate of Frame 1 or Frame 3 below the second backing plate. The second shim iron and the third shim iron penetrate and are welded to each through beam of Frame 1 or Frame 3.

8. The modular multi-functional flat semi-trailer according to claim 7, characterized in that: The third support group on the left side includes a third support block, which is a long groove pipe with an open bottom. The third support block is arranged along the front-rear direction on the upper middle left side of the bottom plate of Frame 1 or Frame 3 and is located on the right side of the second support block on the left side. A third backing plate is welded to the bottom of the third support block, and the third backing plate presses tightly on the upper surface of the bottom plate of Frame 1 or Frame 3. The cross-section of the upper side plate of the third support block is in an inverted hook shape, and the upper surface of the upper side plate of the third support block is fixedly covered with a third rubber cushion skin. A number of stop blocks for restricting the left-right position of the third support block are welded to both the left and right sides of the upper surface of the bottom plate of Frame 1 or Frame 3 below the third backing plate. A fourth shim iron, which is horizontally arranged along the front-rear direction, is welded to the lower left edge of the bottom surface of the bottom plate of Frame 1 or Frame 3 below the third backing plate. A fifth shim iron, which is horizontally arranged along the front-rear direction, is welded to the lower right edge of the bottom surface of the bottom plate of Frame 1 or Frame 3 below the second backing plate. The fourth shim iron and the fifth shim iron penetrate and are welded to each through beam of Frame 1 or Frame 3.

9. The modular multi-functional flat semi-trailer according to claim 1, characterized in that: Each plug-in module has the same structure. The plug-in module installed on the right side beam of Frame 1 includes a second plug-in fixing box and a second plug-in square pipe column. The second plug-in fixing box is a U-shaped box structure with open upper, lower, and left sides. A front folding plate bent forward is integrally formed on the left side edge of the front side plate of the second plug-in fixing box, and a rear folding plate bent backward is integrally formed on the left side edge of the rear side plate of the second plug-in fixing box. The front folding plate and the rear folding plate are both assembled and connected to the right side surface of the right side beam of Frame 1 by bolts. A slanting section bent downward to the left is provided at the lower side part of the second plug-in square pipe column. The lower end part of the second plug-in square pipe column is inserted into the second plug-in fixing box in a matching manner. A first limiting block blocking the upper side edge of the right side plate of the second plug-in fixing box is welded to the right side surface of the lower end part of the second plug-in square pipe column. A second limiting block is welded to the right side surface of the upper end part of the second plug-in square pipe column. The distance between the second limiting block and the upper end of the second plug-in square pipe column is equal to the distance between the first limiting block and the lower end of the second plug-in square pipe column.

10. The modular multi-functional flat semi-trailer according to claim 7, wherein: A plurality of triangular support plates are welded between the lower surface of the bottom plate of Frame 1 or Frame 3 and the longitudinal beams of Frame 1 or Frame 3. The triangular support plates are arranged at intervals in the front and rear and are located below the second stop block. The triangular support plates are vertically arranged and correspond to the corresponding third fixing irons up and down. The third fixing irons are fixedly connected to the triangular support plates by bolts. Two clamping grooves corresponding to the second pad iron and the third pad iron respectively are provided on the upper side edge of the triangular support plate.

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