Tank transport semitrailer

Abstract

The application provides a tank transport semitrailer, a top of a tank body of which is provided with a first protective member and a second protective member. The first protective member forms protection above a manhole, when an obstacle passes by the manhole during driving of the tank transport semitrailer, the obstacle directly contacts the first protective member and smoothly passes through in compliance with arching of the first protective member, so that the manhole is prevented from being scratched by the obstacle. The second protective member forms protection above a top of a ladder, when an obstacle passes by the ladder during driving of the tank transport semitrailer, the obstacle directly contacts the second protective member and smoothly passes through in compliance with arching of the second protective member, so that the ladder is prevented from being scratched by the obstacle, and thus, safety accidents are avoided, and the safety of the tank transport semitrailer as a whole is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transport vehicles, in particular to a tank transport semitrailer. BACKGROUND

[0002] In recent years, the application of tank transport semitrailers is becoming more and more popular, and their use environment is becoming more and more diversified, which can be used for transporting liquid, bulk materials and bulk cement, etc. Some flammable and explosive media, such as liquefied petroleum gas, have a density greater than air, and have higher quality requirements for tank transport semitrailers. However, the overall safety factor of the existing tank transport semitrailer is low, the tank body is easy to be damaged and cause safety accidents, which seriously affects the safety of people's life and property. SUMMARY

[0003] The purpose of the present application is to solve the technical problem of the low overall safety factor of the existing tank transport semitrailer, which is easy to damage the tank body and cause safety accidents, and seriously affects the safety of people's life and property.

[0004] To solve the above technical problems, the present application provides a tank transport semitrailer, which comprises a vehicle frame and a tank body arranged on the vehicle frame, the top of the tank body is provided with a safety valve and a manhole, and one side of the tank body is also provided with a ladder extending from the top of the tank body to the bottom of the tank body, the tank transport semitrailer further comprises a first protective member and a second protective member, the two ends of the first protective member are arranged on the two sides of the manhole respectively, and the two ends of the first protective member are fixed to the top of the tank body; the first protective member is arched upward to form a first protective space between the surface of the tank body, the manhole is arranged in the first protective space, and the connecting line of the two ends of the first protective member and the tank body is parallel to the axis of the tank body; the two ends of the second protective member are arranged on the two sides of the top of the ladder respectively, and the two ends of the second protective member are fixed to the top of the tank body; the second protective member is arched upward to form a second protective space between the surface of the tank body, and the top of the ladder is arranged in the second protective space; the connecting line of the two ends of the second protective member and the tank body is parallel to the axis of the tank body.

[0005] Optionally, the safety valve is provided with a surrounding plate on the peripheral side, and the tank transport semitrailer further comprises a third protective member, the third protective member comprises a pair of rib plates oppositely arranged on the two sides of the surrounding plate, and the top of the rib plate is flush with the top of the surrounding plate; the outer side of the rib plate is a slope, and the connecting line between the two rib plates is parallel to the axis of the tank body.

[0006] Optionally, the setting positions of the first protective member, the second protective member and the third protective member on the tank body are located on the same generatrix of the tank body.

[0007] Optionally, the outer contour of the rib plate is a right triangle, one of the right angles of the rib plate is fixed to the outer surface of the surrounding plate, and the other right angle of the rib plate is fixed to the surface of the tank body.

[0008] Optionally, the third protective member further comprises a cover plate, the cover plate is arranged on the outer side of the rib plate, the top end of the cover plate is connected to the surrounding plate, and the bottom end of the cover plate is fixed to the surface of the tank body.

[0009] Optionally, the top end of the cover plate and the surrounding plate are smoothly connected.

[0010] Optionally, the first protective member comprises a fixed part and a transition part connected to both ends of the fixed part, the extension direction of the transition part is consistent with the axis direction of the tank body, the included angle between the transition part and the fixed part is obtuse, and the first protective member is trapezoidal arch.

[0011] Optionally, the transition part and the fixed part are detachably connected and fixed.

[0012] Optionally, the second protective member comprises a support part and an extension part connected to both ends of the support part, the extension direction of the support part is consistent with the axis direction of the tank body, the included angle between the extension part and the support part is obtuse, and the second protective member is trapezoidal arch.

[0013] Optionally, the tank transport semi-trailer further comprises a contact sensor, the contact sensor is arranged on the outer surface of the side of the second protective member close to the head of the tank transport vehicle, the contact sensor is used to sense the contact signal of the contact of the second protective member with an obstacle, and is used to transmit the contact signal to the alarm and / or controller of the tank transport semi-trailer.

[0014] Optionally, the bottom of the tank body is provided with a plurality of functionally different valves, and the tank transport semi-trailer further comprises a diffusion pipeline, the diffusion pipeline comprises a diffusion main pipe and a plurality of diffusion branch pipes, the inlet of the diffusion main pipe is in communication with one of the valves, the inlets of the plurality of diffusion branch pipes are in one-to-one correspondence with the remaining plurality of valves, and the outlets of the diffusion branch pipes are in communication with the diffusion main pipe; the outlet of the diffusion main pipe extends towards the top of the tank body and is not higher than the top end of the tank body.

[0015] Optionally, the diffusion main pipe and the diffusion branch pipe are in communication through a tee joint.

[0016] Optionally, the tank transport semi-trailer further comprises a pipe clamp and a flame arrestor, the pipe clamp is arranged on the diffusion main pipe and fixed to the outer surface of the tank body, and the flame arrestor is arranged at the outlet of the diffusion main pipe.

[0017] Optionally, the valve comprises a gas phase valve, a liquid outlet valve and a liquid inlet valve.

[0018] Optionally, the tank transport semitrailer further comprises a side guardrail, the side guardrail is arranged at the bottom of the tank body, the side guardrail comprises a guardrail main body and a connecting assembly, the guardrail main body comprises a plurality of guardrail pipes, the guardrail pipes extend along the axial direction of the tank body, and the plurality of guardrail pipes are arranged at intervals in the height direction of the tank transport semitrailer; a plurality of connecting assemblies are arranged at intervals on the inner side of the guardrail main body along the extension direction of the guardrail pipes, and each connecting assembly comprises at least one connecting piece, one end of the connecting piece is connected with the guardrail main body, and the other end is connected with the tank body.

[0019] Optionally, each guardrail pipe comprises a plurality of guardrail segments and a plurality of adapter segments, two adjacent guardrail segments are connected through the adapter segment, and the outer ends of the guardrail segments are connected with the adapter segments.

[0020] Optionally, one end of the guardrail pipe close to the front of the tank transport semitrailer is curved towards the tank body.

[0021] Optionally, the guardrail main body further comprises an auxiliary bending piece, the auxiliary bending piece is L-shaped, the auxiliary bending piece is fixed on the inner side of the guardrail pipe, and the end of the connecting piece is connected with the inner side of the auxiliary bending piece.

[0022] Optionally, the connecting assembly further comprises a mounting corner piece, the mounting corner piece is arranged at the end of the connecting piece away from the guardrail main body, and the mounting corner piece is connected and fixed with the tank body.

[0023] Optionally, the connecting piece comprises a first connecting segment and a second connecting segment connected with the first connecting segment, one end of the first connecting segment away from the first connecting segment is connected with the guardrail main body, the second connecting segment is bently connected with the first connecting segment, and one end of the second connecting segment away from the first connecting segment is connected with the tank body.

[0024] According to the above technical solution, the beneficial effects of the present application are as follows: in the tank transport semitrailer, the top of the tank body is provided with a first protective piece and a second protective piece, the first protective piece forms a protection above the manhole, when an obstacle passes through the manhole during the driving of the tank transport semitrailer, the obstacle will directly contact the first protective piece and smoothly pass through the arch of the first protective piece, avoiding the manhole being scratched by the obstacle. The second protective piece forms a protection above the top of the ladder, when an obstacle passes through the ladder during the driving of the tank transport semitrailer, the obstacle will directly contact the second protective piece and smoothly pass through the arch of the second protective piece, avoiding the ladder being scratched by the obstacle, thereby avoiding the occurrence of safety accidents and improving the overall safety of the tank transport semitrailer. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of the tanker semi-trailer of the present invention.

[0026] Figure 2 yes Figure 1 The image shows a side view of a tanker semi-trailer.

[0027] Figure 3 yes Figure 1 The diagram shows the structure of the first protective component in the tanker semi-trailer.

[0028] Figure 4 yes Figure 1 The diagram shows the structure of the second protective component in the tanker semi-trailer.

[0029] Figure 5 yes Figure 1 The diagram shows the structure of the third protective component in the tanker semi-trailer.

[0030] Figure 6 yes Figure 1 The diagram shows the structure of the venting pipeline in the tanker semi-trailer.

[0031] Figure 7 yes Figure 6 The side view of the venting pipeline is shown.

[0032] Figure 8 yes Figure 1 The diagram shows the structure of the side guardrail in the tanker semi-trailer.

[0033] Figure 9 yes Figure 8 The side view of the side guardrail shown.

[0034] Figure 10 yes Figure 8 The top view of the side guardrail shown.

[0035] The reference signs are explained as follows: 100, tank transport semitrailer; 101, vehicle frame; 102, tank body; 103, safety valve; 104, manhole; 105, ladder; 106, contact sensor; 107, coaming; 1081, gas phase valve; 1082, liquid inlet valve; 1083, liquid outlet valve; 109, assembly corner fitting; 10, first guard; 11, fixed portion; 12, transition portion; 20, second guard; 21, support portion; 22, extension portion; 30, third guard; 31, rib plate; 32, cover plate; 40, dispersing pipeline; 41, dispersing main pipe; 421, first dispersing branch pipe; 422, second dispersing branch pipe; 43, ball valve; 44, tee joint; 45, pipe clamp; 46, flame arrestor; 50, side guardrail; 51, guardrail main body; 511, guardrail pipe; 5111, guardrail segment; 5112, adapter segment; 512, auxiliary bending piece; 52, connecting assembly; 521, connecting piece; 5211, first connecting segment; 5212, second connecting segment; 522, mounting corner fitting; 523, reinforcing plate. DETAILED DESCRIPTION

[0036] Typical embodiments embodying features and advantages of the present application are described in detail below. It should be appreciated that the present application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these described embodiments are provided by way of example so that this disclosure will convey the principles and features of the present application to those skilled in the art.

[0037] In the description of the present application, it should be understood that the indication of direction or positional relationship (such as up, down, left, right, front and back, etc.) in the embodiments shown in the drawings is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the positions of these elements change, the indications of these directions will also change accordingly.

[0038] In addition, the terms "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0039] Reference is made to Figure 1 and Figure 2In an embodiment of the present application, a tank transport semitrailer 100 is provided, which comprises a frame 101 and a tank body 102 arranged on the frame 101. The tank body 102 is provided with a safety valve 103 and a manhole 104 at the top thereof. The tank body 102 is further provided with a ladder 105 extending from the top of the tank body 102 to the bottom thereof.

[0040] In the embodiment, the tank transport semitrailer 100 further comprises a first protective member 10 and a second protective member 20. The first protective member 10 and the second protective member 20 are both arranged at the top of the tank body 102.

[0041] Specifically, the two ends of the first protective member 10 are arranged at the two sides of the manhole 104, and the two ends of the first protective member 10 are fixed to the top of the tank body 102. The first protective member 10 is arched upward to form a first protective space between the first protective member 10 and the surface of the tank body 102, and the manhole 104 is arranged in the first protective space. The line connecting the two ends of the first protective member 10 and the tank body 102 is parallel to the axis of the tank body 102.

[0042] The two ends of the second protective member 20 are arranged at the two sides of the top of the ladder 105, and the two ends of the second protective member 20 are fixed to the top of the tank body 102. The second protective member 20 is arched upward to form a second protective space between the second protective member 20 and the surface of the tank body 102, and the top of the ladder 105 is arranged in the second protective space. The line connecting the two ends of the second protective member 20 and the tank body 102 is parallel to the axis of the tank body 102.

[0043] In combination Figure 3 The first protective member 10 of the embodiment comprises a fixed portion 11 and two transition portions 12 connected to the two ends of the fixed portion 11. The extension direction of the fixed portion 11 is consistent with the axis direction of the tank body 102. The included angle between the fixed portion 11 and the two transition portions 12 is obtuse, so that the first protective member 10 is arched in a trapezoidal shape.

[0044] In the embodiment, the fixed portion 11 and the two transition portions 12 are both angle steels. The fixed portion 11 is arranged above the manhole 104, and the two transition portions 12 are connected to the two ends of the fixed portion 11, respectively. The end of the transition portion 12 away from the fixed portion 11 is welded and fixed to the surface of the tank body 102.

[0045] The first protective member 10 forms a protection above the manhole 104. When an obstacle such as a wire passes by the manhole 104 during the driving of the tank transport semitrailer 100, the wire will directly contact the first protective member 10 and smoothly pass through the arched first protective member 10, so as to avoid the manhole 104 being scratched by the obstacle and improve the safety of the driving of the tank transport semitrailer 100.

[0046] It can be understood that in other examples of the embodiment, the first protective member 10 can also be in the shape of an arc or the like to facilitate the smooth passing of the obstacle, as long as the obstacle can be prevented from being scratched by or caught on the manhole 104.

[0047] In the embodiment, the transition portions 12 and the fixed portion 11 of the first protective member 10 are detachably connected and fixed. Such a configuration not only achieves the purpose of the scratch-preventing line at the manhole 104, but also does not affect the use of the manhole 104. When the operator needs to access the manhole 104, the fixed portion 11 can be detached from the ends of the two transition portions 12. After the manhole 104 is used, the fixed portion 11 is installed at the ends of the two transition portions 12.

[0048] The connection between the fixed portion 11 and the transition portion 12 is provided with a mounting hole, and a fastener is arranged in the mounting hole, so that the fixed portion 11 and the transition portion 12 are detachably connected. In the embodiment, the mounting hole is a threaded hole, and the fastener is a bolt. The fixed portion 11 and the transition portion 12 are connected by the bolt.

[0049] The first protective member 10 of the embodiment can be provided with a contact sensor, which is arranged on the transition portion 12. The contact sensor is used to sense a contact signal of the first protective member 10 contacting the obstacle, and is used to transmit the contact signal to an alarm and / or a controller of the tank transport semi-trailer 100, so that the driver can know in real time whether the tank transport semi-trailer 100 scratches the obstacle.

[0050] Among them, different alarm forms can be set according to the shape of the obstacle, such as: when the obstacle is a linear object, the controller transmits a control signal to realize the smooth passing of the linear object through the first protective member 10; when the obstacle is a hard object, the contact sensor generates a contact signal when the obstacle contacts the contact sensor, and the alarm receives the contact signal to automatically alarm.

[0051] Further, in combination with Figure 4 The second protective member 20 of the embodiment includes a support portion 21 and an extension portion 22 connected at both ends of the support portion 21. The extension direction of the support portion 21 is consistent with the axis direction of the tank body 102, and the included angle between the extension portion 22 and the support portion 21 is obtuse, so that the second protective member 20 is in the shape of a trapezoidal arch.

[0052] In the embodiment, the support portion 21 and the extension portion 22 are integrally formed by bending a steel belt. Among them, the support portion 21 is arranged above the top of the ladder 105, the two extension portions 22 are respectively connected at both ends of the support portion 21, and the end of the extension portion 22 away from the support portion 21 is welded and fixed to the surface of the tank body 102.

[0053] The second protective member 20 forms a protection above the top of the ladder 105. When an obstacle, such as a wire, passes by the ladder 105 during the driving of the tank transport semi-trailer 100, the wire will directly contact the second protective member 20 and smoothly pass through the second protective member 20 in compliance with the tendency of the arching second protective member 20 from low to high and then from high to low, so as to avoid the ladder 105 being scratched by the obstacle and improve the safety of the driving of the tank transport semi-trailer 100.

[0054] It can be understood that, in other examples of the embodiment, the second protective member 20 can also be in an arc shape or other shape facilitating the smooth passing of the obstacle, as long as the obstacle can be prevented from being scratched by or on the ladder 105.

[0055] In the embodiment, the second protective member 20 is provided with a contact sensor 106, which is arranged on the outer surface of the second protective member 20 near the side of the head of the tank transport vehicle. The contact sensor 106 is used to sense a contact signal of the second protective member 20 contacting the obstacle and transmit the contact signal to an alarm and / or a controller of the tank transport semi-trailer 100, so that the driver can know in real time whether the tank transport semi-trailer 100 is scratched by the obstacle.

[0056] In the embodiment, different alarm forms can be set according to the shape of the obstacle. For example, when the obstacle is a linear object, the controller transmits a control signal to realize the smooth passing of the linear object through the second protective member 20; when the obstacle is a hard object, the obstacle contacts the contact sensor 106 to make the contact sensor 106 generate a contact signal, and the alarm receives the contact signal to automatically alarm.

[0057] Further, referring to Figure 5 The safety valve 103 of the embodiment is provided with a coaming 107 on the periphery thereof, and the tank transport semi-trailer 100 further comprises a third protective member 30. The third protective member 30 comprises a pair of rib plates 31 oppositely arranged on the two sides of the coaming 107, and the top of the rib plate 31 is flush with the top of the coaming 107. The outer side of the rib plate 31 is a slope, and the line connecting the two rib plates 31 is parallel to the axis of the tank body 102.

[0058] The third protective member 30 forms a protection on the two sides of the coaming 107 of the safety valve 103. When an obstacle, such as a wire, passes by the safety valve 103 during the driving of the tank transport semi-trailer 100, the wire will first contact the rib plate 31 and smoothly transition to the top of the coaming 107 in compliance with the slope of the rib plate 31, and then smoothly transition to the rib plate 31 on the other side of the coaming 107 in compliance with the slope of the rib plate 31, so as to smoothly pass through the safety valve 103, avoid the safety valve 103 and the coaming 107 being scratched by the obstacle, and improve the safety of the driving of the tank transport semi-trailer 100.

[0059] In the embodiment, the outer contour of the rib plate 31 is a right triangle. One of the right angles of the rib plate 31 is fixed to the outer surface of the surrounding plate 107, and the other right angle is fixed to the surface of the tank body 102.

[0060] The third protective member 30 of the embodiment further comprises a cover plate 32 arranged on the outer side of the rib plate 31. The top end of the cover plate 32 is connected to the surrounding plate 107, and the bottom end of the cover plate 32 is fixed to the surface of the tank body 102. The cover plate 32 can increase the contact area of the third protective member 30 with the obstacle, so that the third protective member 30 can better protect the safety valve 103 and the surrounding plate 107.

[0061] In the embodiment, a contact sensor can be arranged on the third protective member 30, and the contact sensor can be arranged on the cover plate 32. The contact sensor is used to sense a contact signal of the third protective member 30 contacting the obstacle, and is used to transmit the contact signal to an alarm and / or a controller of the tank transport semitrailer 100, so that the driver can know in real time whether the tank transport semitrailer 100 is in contact with the obstacle.

[0062] Different alarm forms can be set according to the shape of the obstacle. For example, when the obstacle is a linear object, the controller transmits a control signal to realize the smooth passing of the linear object through the third protective member 30; when the obstacle is a hard object, the obstacle contacts the contact sensor to make the contact sensor generate a contact signal, and the alarm receives the contact signal to automatically alarm.

[0063] Referring to Figure 1 , Figure 6 and Figure 7 , the bottom of the tank body 102 of the embodiment is provided with a gas phase valve 1081, a liquid inlet valve 1082 and a liquid outlet valve 1083, and the tank transport semitrailer 100 further comprises a diffusion pipeline 40.

[0064] The diffusion pipeline 40 comprises a diffusion main pipe 41 and two diffusion branch pipes. The inlet of the diffusion main pipe 41 is in communication with the gas phase valve 1081. The two diffusion branch pipes are a first diffusion branch pipe 421 and a second diffusion branch pipe 422. The outlets of the first diffusion branch pipe 421 and the second diffusion branch pipe 422 are in communication with the diffusion main pipe 41. The inlet of the first diffusion branch pipe 421 is in communication with the liquid inlet valve 1082, and the inlet of the second diffusion branch pipe 422 is in communication with the liquid outlet valve 1083.

[0065] In the embodiment, the outlet of the diffusion main pipe 41 extends towards the top of the tank body 102 and is not higher than the top end of the tank body 102. By arranging the diffusion main pipe 41 and the diffusion branch pipes, the residual medium can be introduced into the diffusion main pipe 41, and then discharged to a safe target position through the outlet of the diffusion main pipe 41, thereby improving the safety of the tank transport semitrailer 100.

[0066] The connection between the diffusion main pipe 41 and the gas phase valve 1081 is provided with a ball valve 43 for controlling the opening and closing of the diffusion main pipe 41. The connection between the first diffusion branch pipe 421 and the liquid inlet valve 1082 is provided with a ball valve 43 for controlling the opening and closing of the first diffusion branch pipe 421. The connection between the second diffusion branch pipe 422 and the liquid outlet valve 1083 is provided with a ball valve 43 for controlling the opening and closing of the second diffusion pipe 40.

[0067] In the embodiment, the connection between the diffusion main pipe 41 and the first diffusion branch pipe 421 and the second diffusion branch pipe 422 is provided with a tee joint 44, i.e., the diffusion main pipe 41 and the first diffusion branch pipe 421 and the second diffusion branch pipe 422 are communicated through the tee joint 44.

[0068] The outlet of the diffusion main pipe 41 of the embodiment is located at the top of the tank body 102, and the diffused residual gas-liquid is drained to a high place for unified discharge. The diffusion speed of the residual gas-liquid can be accelerated by air flow, the diffusion space is also increased, and the occurrence of explosion is effectively prevented. The outlet of the diffusion main pipe 41 is provided with multiple bends, which can slow down the flow speed of the gas-liquid, avoid the medium from spraying the tank, and further improve the safety of the diffusion operation.

[0069] In addition, the tank transport semitrailer 100 also includes a pipe clamp 45 and a flame arrestor 46. The pipe clamp 45 is arranged on the diffusion main pipe 41 and fixed with the outer surface of the tank body 102 to fix the position of the diffusion main pipe 41 on the tank body 102. The flame arrestor 46 is arranged at the outlet of the diffusion main pipe 41 to enhance the safety performance of the diffusion pipe 40 as a whole.

[0070] It should be noted that in other examples, the number of diffusion branch pipes is not limited to two as shown in the embodiment, and the number of diffusion branch pipes can be increased or decreased according to the number of valve bodies arranged on the tank body 102, as long as the residual medium can be diffused safely.

[0071] Further, referring to Figure 1 , Figure 8 to Figure 10 The tank transport semitrailer 100 of the embodiment further includes a side guard 50 arranged at the bottom of the tank body 102 for protecting the tank body 102 from damage.

[0072] The side guardrail 50 comprises a guardrail body 51 and a plurality of sets of connecting assemblies 52. The guardrail body 51 comprises a plurality of guardrail pipes 511 extending along the axial direction of the tank body 102, and the plurality of guardrail pipes 511 are arranged at intervals in the height direction of the tank transport semitrailer 100. The plurality of sets of connecting assemblies 52 are arranged at intervals on the inner side of the guardrail body 51 along the extension direction of the guardrail pipes 511, and each set of connecting assemblies 52 comprises at least one connecting piece 521, one end of the connecting piece 521 being connected with the guardrail body 51 and the other end being connected with the tank body 102.

[0073] In the embodiment, the guardrail body 51 comprises three guardrail pipes 511, which are hollow and tubular, and each guardrail pipe 511 comprises two guardrail sections 5111. Two guardrail sections 5111 of every three guardrail pipes 511 are connected to an adapter section 5112, and the outer ends of the three guardrail pipes 511 are connected to an adapter section 5112, so that the guardrail body 51 as a whole has a fence structure.

[0074] It can be understood that, in other examples, the number of guardrail pipes 511 in the guardrail body 51, such as two, four, six, etc., and the number of guardrail sections 5111 in each guardrail pipe 511, such as three, four, six, etc., can also be other settings, which are not limited herein.

[0075] The end of the guardrail pipe 511 of the embodiment close to the front of the tank transport semitrailer 100 is curved towards the tank body 102, which can prevent small vehicles from being rolled into the lower part of the tank transport semitrailer 100, and avoid the end of the side guardrail 50 colliding with other vehicles or pedestrians, thereby improving the safety of the tank transport semitrailer 100.

[0076] In the embodiment, the guardrail body 51 further comprises an auxiliary bending piece 512, which is L-shaped. The auxiliary bending piece 512 is fixed to the inner side of the guardrail pipe 511, the inner side of the auxiliary bending piece 512 faces the tank body 102, and the end of the connecting piece 521 is connected with the inner side of the auxiliary bending piece 512.

[0077] The connecting assembly 52 of the embodiment comprises two connecting pieces 521, which are arranged in an up-down manner in the direction of the tank body 102. Each connecting piece 521 comprises a first connecting section 5211 and a second connecting section 5212, wherein the free end of the first connecting section 5211 is welded to the auxiliary bending piece 512, one end of the second connecting section 5212 is bent to the first connecting section 5211, and the other end is connected to the tank body 102.

[0078] The connecting assembly 52 further comprises a mounting corner piece 522 arranged at the end of the second connecting section 5212, and the mounting corner piece 522 is connected with the assembling corner piece 109 on the tank body 102 to realize the fixation of the connecting piece 521 and the tank body 102. The mounting corner piece 522 and the assembling corner piece 109 on the tank body 102 are connected by bolts, and the side guard rail 50 can be conveniently disassembled and replaced. The assembling corner piece 109 on the tank body 102 is welded with the pad plate on the tank body 102, and the assembling of the assembling corner piece 109 is facilitated.

[0079] In the embodiment, the mounting corner piece 522 and the assembling corner piece 109 are both provided with a reinforcing plate 523, and the reinforcing plate 523 is used to strengthen the structural strength of the mounting corner piece 522 and the assembling corner piece 109, improve the stability of the connection between the mounting corner piece 522 and the assembling corner piece 109, and ensure the stable connection between the side guard rail 50 and the tank body 102.

[0080] For the tank transport semi-trailer of the present application, the top of the tank body is provided with a first protective piece and a second protective piece. The first protective piece is arranged above the manhole to form a protection. When an obstacle passes through the manhole during the driving of the tank transport semi-trailer, the obstacle will directly contact the first protective piece and smoothly pass through the arching of the first protective piece, so as to avoid the manhole being scratched by the obstacle. The second protective piece is arranged above the top of the ladder to form a protection. When an obstacle passes through the ladder during the driving of the tank transport semi-trailer, the obstacle will directly contact the second protective piece and smoothly pass through the arching of the second protective piece, so as to avoid the ladder being scratched by the obstacle, thereby avoiding the occurrence of safety accidents and improving the overall safety of the tank transport semi-trailer.

[0081] Although the present application has been described with reference to several exemplary embodiments, it is understood that the terms used are illustrative and not restrictive terms. Since the present application can be embodied in many different forms without departing from the spirit or essential characteristics thereof, it is understood that the above-described embodiments are not limited to any of the aforementioned details, but are to be construed broadly within the spirit and scope of the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalents of such metes and bounds, are intended to be embraced by the claims.

Claims

1. A tank transport semitrailer, comprising a frame and a tank body arranged on the frame, a top of the tank body being provided with a safety valve and a manhole, and one side of the tank body being further provided with a ladder extending from the top of the tank body to the bottom of the tank body, characterized in that, The tank transport semitrailer further comprises: A first protective member is arranged at two sides of the manhole respectively, and two ends of the first protective member are fixed to the top of the tank body; the first protective member is arched upward to form a first protective space between the first protective member and the surface of the tank body, and the manhole is arranged in the first protective space; and a line connecting the two ends of the first protective member at the connection with the tank body is parallel to the axis of the tank body; A second protective member is arranged at two sides of the top of the ladder respectively, and two ends of the second protective member are fixed to the top of the tank body; the second protective member is arched upward to form a second protective space between the second protective member and the surface of the tank body, and the top of the ladder is arranged in the second protective space; and a line connecting the two ends of the second protective member at the connection with the tank body is parallel to the axis of the tank body; Wherein, the safety valve is provided with a coaming on the peripheral side, and the tank transport semitrailer further comprises a third protective member, the third protective member comprises a pair of rib plates oppositely arranged at two sides of the coaming, and the top of the rib plate is flush with the top of the coaming; the outer side of the rib plate is a bevel, and the line connecting the two rib plates is parallel to the axis of the tank body; the setting positions of the first protective member, the second protective member and the third protective member on the tank body are located on the same generatrix of the tank body; The tank transport semitrailer further comprises a contact sensor, the contact sensor is arranged on the outer surface of the second protective member close to the side of the head of the tank transport semitrailer, the contact sensor is used for sensing a contact signal of the second protective member contacting an obstacle, and is used for transmitting the contact signal to an alarm and / or a controller of the tank transport semitrailer.

2. The tank trailer of claim 1, wherein, The outer contour of the rib plate is a right triangle, one right angle side of the rib plate is fixed to the outer surface of the coaming, and the other right angle side of the rib plate is fixed to the surface of the tank body.

3. The tank trailer of claim 1, wherein, The third protective member further comprises a cover plate, the cover plate is arranged on the outer side of the rib plate; the top end of the cover plate is connected to the coaming, and the bottom end of the cover plate is fixed to the surface of the tank body.

4. The tank trailer of claim 3, wherein, The top end of the cover plate and the coaming are smoothly connected.

5. The tank trailer of claim 1, wherein, The first protective member comprises a fixed part and a transition part connected at two ends of the fixed part, the extension direction of the transition part is consistent with the axis direction of the tank body, the included angle between the transition part and the fixed part is obtuse, and the first protective member is arched in a trapezoidal shape.

6. The tank trailer of claim 5, wherein, The transition part and the fixed part are detachably connected and fixed.

7. The tank trailer of claim 1, wherein, The second protective member comprises a support part and an extension part connected at two ends of the support part, the extension direction of the support part is consistent with the axis direction of the tank body, the included angle between the extension part and the support part is obtuse, and the second protective member is arched in a trapezoidal shape.

8. The tank trailer of claim 1, wherein, The bottom of the tank body is provided with a plurality of functionally different valves, and the tank transport semitrailer further comprises a diffusion pipeline, the diffusion pipeline comprising a diffusion main pipe and a plurality of diffusion branch pipes, the inlet of the diffusion main pipe being in communication with one of the valves, the inlets of the plurality of diffusion branch pipes being in communication with the remaining valves one by one, and the outlets of the diffusion branch pipes being in communication with the diffusion main pipe; the outlet of the diffusion main pipe extends towards the top of the tank body and is not higher than the top end of the tank body.

9. The tank trailer of claim 8, wherein, The diffusion main pipe and the diffusion branch pipes are in communication through a tee joint.

10. The tank trailer of claim 8, wherein, The tank transport semitrailer further comprises a pipe clamp and a flame arrestor, the pipe clamp being arranged on the diffusion main pipe and fixed to the outer surface of the tank body, and the flame arrestor being arranged at the outlet of the diffusion main pipe.

11. The tank trailer of claim 8, wherein, The valves comprise a gas phase valve, a liquid outlet valve and a liquid inlet valve.

12. The tank trailer of claim 1, wherein, The tank transport semitrailer further comprises a side guardrail, the side guardrail being arranged at the bottom of the tank body, and the side guardrail comprising: a guardrail body comprising a plurality of guardrail pipes, the guardrail pipes extending along the axial direction of the tank body, and the plurality of guardrail pipes being arranged at intervals in the height direction of the tank transport semitrailer; a plurality of groups of connecting assemblies arranged at intervals on the inner side of the guardrail body in the extension direction of the guardrail pipes, each group of connecting assemblies comprising at least one connecting piece, one end of the connecting piece being connected to the guardrail body and the other end being connected to the tank body.

13. The tank trailer of claim 12, wherein, Each of the guardrail pipes comprises a plurality of guardrail segments and a plurality of adapter segments, two adjacent guardrail segments being connected by the adapter segments, and the outer ends of the guardrail segments being connected to the adapter segments.

14. The tank trailer of claim 12, wherein, The end of the guardrail pipe close to the vehicle head of the tank transport semitrailer is curved towards the tank body.

15. The tank trailer of claim 12, wherein, The guardrail body further comprises an auxiliary bending piece, the auxiliary bending piece being L-shaped, the auxiliary bending piece being fixed to the inner side of the guardrail pipe, and the end of the connecting piece being connected to the inner side of the auxiliary bending piece.

16. The tank trailer of claim 12, wherein, The connecting assembly further comprises a mounting corner piece, the mounting corner piece being arranged at the end of the connecting piece away from the guardrail body, and the mounting corner piece being connected and fixed to the tank body.

17. The tank trailer of claim 12, wherein, The connecting piece comprises a first connecting segment and a second connecting segment connected to the first connecting segment, one end of the first connecting segment away from the first connecting segment being connected to the guardrail body, the second connecting segment being bent and connected to the first connecting segment, and one end of the second connecting segment away from the first connecting segment being connected to the tank body.

Images