CN217074549U - Vehicle-mounted guardrail and vehicle - Google Patents

Abstract

The application provides a vehicle-mounted guardrail and vehicle relates to the technical field of petroleum gas sealing detection. Wherein, this on-vehicle guardrail includes: a plurality of first connectors mounted at intervals to the side walls of the bed; the guardrail body is provided with at least two connecting ends at the bottom side, and the connecting ends are respectively movably connected with the corresponding first connecting pieces so as to enable the guardrail body to have a first state and a second state; when the guardrail body is in the first state, the guardrail body is perpendicular to the carriage bottom plate and keeps a relative position with the carriage bottom plate; when the guardrail body is in the second state, the guardrail body is parallel to and in contact with the carriage bottom plate. According to the technical scheme, the technical problems that in the prior art, the vehicle-mounted guardrail is complex to install and disassemble and the efficiency is low can be solved.

Description

Vehicle-mounted guardrail and vehicle

Technical Field

The application relates to an oil gas seals and detects technical field, especially relates to a vehicle guardrail and vehicle.

Background

The single well construction operation is inevitably the assembly and disassembly of equipment, and the efficiency of equipment assembly is particularly important when a sudden construction well is encountered. Insert on the carriage board when current on-vehicle guardrail uses, use the completion and take off unified the depositing, install and remove the operation comparatively loaded down with trivial details, and the unified guardrail of depositing appears obscuring easily, because there is the error in the machining precision, can lead to guardrail and the comparatively difficult technical problem of carriage board installation after appearing obscuring.

SUMMERY OF THE UTILITY MODEL

The purpose of this application embodiment is to provide a vehicle guardrail and vehicle to solve the vehicle guardrail installation among the prior art and dismantle the comparatively loaded down with trivial details and the lower technical problem of efficiency of operation.

In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:

this application first aspect provides a vehicle guardrail, and this vehicle guardrail includes: the first connecting pieces are arranged on the side wall of the carriage bottom plate at intervals;

the guardrail body is provided with at least two connecting ends at the bottom side, and the connecting ends are respectively movably connected with the corresponding first connecting pieces so as to enable the guardrail body to have a first state and a second state;

when the guardrail body is in the first state, the guardrail body is perpendicular to the carriage bottom plate and keeps a relative position with the carriage bottom plate;

when the guardrail body is in the second state, the guardrail body is parallel to and in contact with the carriage bottom plate.

In some modified embodiments of the first aspect of the present application, the first connecting member has a receiving cavity adapted to the connecting end of the guardrail body for receiving the connecting end of the guardrail body;

when the connecting end of the guardrail body extends into the bottom of the accommodating cavity, the first connecting piece limits the connecting end to keep the relative position of the guardrail body and the carriage bottom plate corresponding to the first state of the guardrail body;

when the connecting end of the guardrail body moves to the top of the accommodating cavity, the connecting end can rotate towards the direction close to the carriage bottom plate, so that the guardrail body is converted from the first state to the second state.

In some modified embodiments of the first aspect of the present application, the connecting end of the guardrail body has a groove extending along a first direction, the receiving cavity of the first connector has a protrusion extending into the groove, the protrusion and the groove are movable relative to each other, and the protrusion is close to the top end of the first connector;

wherein the first direction is perpendicular to the bed floor.

In some modified embodiments of the first aspect of the present application, a locking screw is connected to a top end of the first connecting piece, and a portion of the locking screw extending into the accommodating cavity of the first connecting piece is the protrusion.

In some modified embodiments of the first aspect of the present application, the receiving cavity of the first connecting member has a groove extending along a first direction, the connecting end of the guardrail body has a protrusion, the protrusion and the groove are movable relative to each other, and the protrusion is close to the bottom end of the connecting end;

wherein the first direction is perpendicular to the bed floor.

In some modified embodiments of the first aspect of the present application, the cross-sectional shape of the projection is circular, and the groove walls of the groove facing in the first direction are configured as arc-shaped surfaces.

In some modified embodiments of the first aspect of the present application, a top of the first connecting member protrudes from an upper surface of the bed, and at least a portion of a side of the first connecting member facing the bed, which protrudes from the upper surface of the bed, has an opening structure penetrating through the accommodating cavity;

the height of the top of the first connecting piece protruding out of the upper surface of the carriage bottom plate is not less than the height of the guardrail body in the first direction when the guardrail body is in the second state.

In some modified embodiments of the first aspect of the present application, the guardrail body includes at least two first cross bars and second cross bars parallel to each other, and two first vertical bars connecting corresponding ends of the first cross bars and the second cross bars and extending in a direction away from the first cross bars, the end of the first vertical bar departing from the first cross bars being the connecting end.

In some modified embodiments of the first aspect of the present application, the guardrail body further includes at least one second vertical rod located between the two first vertical rods, the second vertical rod is equal in length and parallel to the first vertical rod, and an end of the second vertical rod away from the first cross rod is the connecting end;

wherein at least one second vertical rod is connected with the middle points of the first cross rod and the second cross rod.

A second aspect of the present application provides a vehicle comprising: the vehicle-mounted guardrail is mounted on the side part of the carriage bottom plate.

Compared with the prior art, the vehicle-mounted guardrail provided by the application, the guardrail body is through with first connecting piece swing joint, can make the guardrail body convenient switching between first state and second state, first state and second state correspond to the operating condition and the non-operating condition of guardrail body respectively, thereby can cancel the operation that the guardrail body need be dismantled when the non-operating condition, can save and deposit the required space of guardrail body, and the installation with dismantle the required time of guardrail body, the condition of confusing easily that can avoid appearing when depositing the guardrail body simultaneously, can effectively improve equipment fixing and the efficiency of dismantling.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:

fig. 1 schematically illustrates a structural schematic view of a vehicle guardrail according to an embodiment of the present invention;

fig. 2 schematically shows a structural schematic view of a guardrail body of a vehicle-mounted guardrail provided by an embodiment of the invention in a first state;

fig. 3 schematically shows a structural schematic view of a guardrail body of the vehicular guardrail provided by the embodiment of the invention in a second state;

fig. 4 schematically shows a main structure diagram of a guardrail body of a vehicle-mounted guardrail provided by an embodiment of the invention;

fig. 5 schematically shows a left-side view structural diagram of a guardrail body of the vehicular guardrail provided by the embodiment of the invention;

the reference numbers illustrate:

the guardrail comprises a guardrail body 1, a groove 101, a first cross rod 11, a second cross rod 12, a first vertical rod 13, a second vertical rod 14, a first connecting piece 2, an accommodating cavity 201, a locking screw 202 and a carriage bottom plate 3.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

At present, vehicle-mounted guardrails adopted in the prior art need to be inserted on carriage plates when in use, and need to be taken down one by one and stored uniformly after use, so that the operation of installation and disassembly is more complicated, and the uniform storage of guardrails needs to occupy larger space; in addition, a plurality of the same guardrails that get off of dismantlement appear obscuring when unified depositing easily, because there is the error in the machining precision, can lead to the comparatively difficult technical problem of guardrail and carriage board installation after appearing obscuring, influence the efficiency of installation.

Example one

Referring to fig. 1-5, an embodiment of the present invention provides an on-vehicle guardrail, which includes:

a plurality of first connectors 2 mounted at intervals on the side wall of the platform floor 3;

the guardrail comprises a guardrail body 1, wherein the bottom side of the guardrail body 1 is provided with at least two connecting ends which are respectively movably connected with the corresponding first connecting pieces 2, so that the guardrail body 1 has a first state and a second state;

when the guardrail body 1 is in the first state, the guardrail body 1 is perpendicular to the carriage bottom plate 3 and keeps a relative position with the carriage bottom plate 3;

when the guardrail body 1 is in the second state, the guardrail body 1 is parallel to and in contact with the platform floor 3.

Specifically, the sealed detection field that detects of petroleum gas can be applied to the on-vehicle guardrail that this embodiment provided, and this on-vehicle guardrail can be applied to the truck, if: northbound trucks 2529 and 2534, but are not so limited; on-vehicle guardrail installs in the lateral part of carriage bottom plate 3, for solving guardrail installation among the prior art and dismantling more loaded down with trivial details and the lower technical problem of efficiency, the concrete structure of on-vehicle guardrail that this embodiment provided includes: the guardrail comprises a guardrail body 1 and a plurality of first connecting pieces 2, wherein each guardrail body 1 can be correspondingly arranged on the side part of one carriage bottom plate 3, the first connecting pieces 2 are used for connecting the guardrail body 1 with the corresponding carriage bottom plate 3, in order to improve the mounting stability and reliability of each guardrail body 1, each guardrail body 1 can correspond to the plurality of first connecting pieces 2, and the plurality of first connecting pieces 2 are arranged on the side wall of the carriage bottom plate 3 at certain intervals; in order to realize the connection with the first connecting piece 2, the bottom side of the guardrail body 1 is provided with at least two connecting ends, the number of the connecting ends is equal to that of the first connecting piece 2, the connecting ends are mutually matched structures, the connecting ends can be end structures additionally arranged on the guardrail body 1 for realizing the connection, or can also be a part of the guardrail body 1 at the bottom, and the connecting ends are not specifically limited; each connecting end of the guardrail body 1 is movably connected with the corresponding first connecting piece 2, wherein the movable connection refers to a non-fixed connection mode, namely the guardrail body 1 and the first connecting pieces 2 can move relatively, the first connecting pieces 2 and the carriage bottom plate 3 are fixed with each other, so that the guardrail body 1 can move relative to the carriage bottom plate 3, and the guardrail body 1 can have at least two using states, namely a first state and a second state through the movement of the guardrail body 1; when the guardrail body 1 moves to a first state, the guardrail body 1 is in a state of being perpendicular to the carriage bottom plate 3, namely in a working state, referring to the attached drawings 1 and 2, and at the moment, the relative positions of the guardrail body 1 and the carriage bottom plate 3 can be kept through the matching of the first connecting piece 2 and the connecting end of the guardrail body 1; and when adjusting guardrail body 1 and making it convert the second state into by first state, guardrail body 1 is folding to being on a parallel with carriage bottom plate 3 and rather than the state of upper surface contact through carriage bottom plate 3 relatively of first connecting piece 2 position, refer to figure 3, correspond its non-operating condition this moment, corresponding to the use scene of dismantling guardrail body 1 among the prior art, thereby the operation of dismantling guardrail body 1 has been saved, can improve equipment fixing greatly and the efficiency of dismantling, and can save and dismantle and deposit the required space of a plurality of guardrail bodies 1, the condition of confusion that appears when can avoid simultaneously unifying and depositing a plurality of guardrail bodies 1, can effectual improvement work efficiency.

Specifically, the guardrail body 1 is arranged around the side edge of the platform floor 3 to protect and defend, and the specific shape and structure of the guardrail body 1 are not particularly limited; and the guardrail body 1 is movably connected with the first connecting piece 2 to switch and adjust between the first state and the second state, and has a plurality of specific implementation modes which will be detailed below, wherein the specific connection mode of the guardrail body 1 and the first connecting piece 2 and the structure of the first connecting piece 2 are not limited by a protective body.

According to the above, the embodiment of the utility model provides an on-vehicle guardrail is provided, guardrail body 1 through with first connecting piece 2 swing joint, can make guardrail body 1 convenient switching between first state and second state, first state and second state correspond guardrail body 1's operating condition and unoperated state respectively, thereby can cancel the operation that needs dismantle guardrail body 1 when unoperated state, can save and deposit the required space of guardrail body 1, and install and dismantle the required time of guardrail body 1, the condition of easily obscuring that can avoid appearing when depositing guardrail body 1 simultaneously, can effectively improve the efficiency of equipment fixing and dismantlement.

Further, referring to fig. 1 and fig. 2, in a specific implementation, the first connecting member 2 has a receiving cavity 201 adapted to the connecting end of the guardrail body 1 for receiving the connecting end of the guardrail body 1; when the connecting end of the guardrail body 1 extends into the bottom of the accommodating cavity 201, the first connecting piece 2 limits the connecting end to keep the relative position of the guardrail body 1 and the carriage bottom plate 3 corresponding to the first state of the guardrail body 1; when the connecting end of the guardrail body 1 moves to the top of the accommodating cavity 201, the connecting end can rotate towards the direction close to the platform floor 3, so that the guardrail body 1 is converted from the first state to the second state.

Specifically, in order to switch the guardrail body 1 between the first state and the second state, in the technical scheme adopted by the utility model, the first connecting piece 2 can be configured to have a structure of the accommodating cavity 201, and the accommodating cavity 201 is matched with the connecting end of the guardrail body 1 and is used for accommodating the connecting end, and the connecting end can be an end structure additionally arranged on the guardrail body 1 to realize connection, or can also be a part of the guardrail body 1 located at the bottom; when the connecting end of the guardrail body 1 extends into the bottom of the accommodating cavity 201, the guardrail body 1 is in a first state, the guardrail body 1 is perpendicular to the carriage bottom plate 3, and the accommodating cavity 201 can play a role in positioning and limiting the connecting end of the guardrail body 1, so that the purpose of self-locking the guardrail body 1 can be achieved, the guardrail body 1 cannot move freely, and the relative position of the guardrail body 1 and the carriage bottom plate 3 is kept; when the connecting end of the guardrail body 1 moves to the top of the accommodating cavity 201, the connecting end of the guardrail body 1 can be turned towards the direction close to the carriage bottom plate 3, so that the included angle between the guardrail body 1 and the carriage bottom plate 3 is gradually reduced until the guardrail body 1 is parallel to and contacts the carriage bottom plate 3, and the guardrail body 1 is converted from the first state to the second state; the above is the movement process of the guardrail body 1, and the specific connection mode of the guardrail body 1 and the first connecting piece 2 will be described in detail below.

Further, referring to fig. 1 to 5, in an implementation, the guardrail body 1 and the first connecting member 2 may have various specific configurations, wherein the first configuration may be: the connecting end of the guardrail body 1 is provided with a groove 101 extending along a first direction, the accommodating cavity 201 of the first connecting piece 2 is internally provided with a bulge extending into the groove 101, the bulge and the groove 101 can move relatively, and the bulge is close to the top end of the first connecting piece 2; wherein the first direction is perpendicular to the bed plate 3.

Specifically, in the technical solution adopted by the present invention, with reference to the guardrail body 1 being in the first state, the connecting end of the guardrail body 1 has a groove 101 extending along the first direction, where the first direction is perpendicular to the platform floor 3, a protrusion is correspondingly arranged in the accommodating cavity 201 of the first connecting member 2, the protrusion extends to the inside of the groove 101, and the position of the protrusion is close to the top end of the first connecting member 2; when the connecting end of the guardrail body 1 extends into the bottom of the accommodating cavity 201, the convex part inside the first connecting piece 2 is positioned at the top end of the groove 101, and the guardrail body 1 is in a first state; when the guardrail body 1 needs to be switched from the first state to the second state, the guardrail body 1 is lifted up to enable the connecting end to slide upwards to the top of the accommodating cavity 201 of the first connecting piece 2, at the moment, the protruding part inside the first connecting piece 2 is located at the bottom end of the groove 101 and can prevent the guardrail body 1 from continuously moving upwards, the guardrail body 1 can be rotated to enable the guardrail body 1 to rotate towards the direction close to the carriage bottom plate 3 until the guardrail body is switched to the second state, and in the switching process, the protruding part can play a role of a rotating shaft, so that the stability of the guardrail body 1 in the state adjusting process can be improved; similarly, when the guardrail body 1 is switched from the second state to the first state, the guardrail body 1 is rotated in the direction away from the platform floor 3, the groove 101 of the connecting end is used as a track, and the connecting end slides to the bottom of the accommodating cavity 201 along the downward sliding of the protruding part, so that the operation method is simple and convenient.

Specifically, the number of the grooves 101 and the number of the protrusions may be one or two, respectively, and when one groove 101 is provided, the groove 101 may be provided on a surface of one side wall of the bed plate 3 at which the connection end is perpendicular to the bed plate; or when two grooves 101 are provided, the two grooves 101 may be respectively provided on the surfaces of the both side walls of the floor panel 3 at the coupling ends.

Further, referring to fig. 1-2, in a specific implementation, a locking screw 202 is connected to a top end of the first connecting member 2, and a portion of the locking screw 202 extending to the inside of the accommodating cavity 201 of the first connecting member 2 is the protrusion.

Specifically, the utility model discloses in the technical scheme who takes, can set up a screw hole on first connecting piece 2's top, and connect a locking screw 202, this locking screw 202 is held the inside part of cavity 201 by the screw hole entering and is above-mentioned bellying, and when guardrail body 1 is in the first state, locking screw 202 is further adjusted to the accessible, the tank bottom of the inner compressed groove 101 that makes locking screw 202, can further play the spacing fixed effect to guardrail body 1, improve the auto-lock effect of guardrail body 1 under the first state.

Further, in specific implementation, the guardrail body 1 and the first connecting piece 2 can have a plurality of specific arrangement forms, wherein the second arrangement form can be: the accommodating cavity 201 of the first connecting piece 2 is internally provided with a groove 101 extending along a first direction, the connecting end of the guardrail body 1 is provided with a convex part, the convex part and the groove 101 can move relatively, and the convex part is close to the bottom end of the connecting end; wherein the first direction is perpendicular to the bed plate 3.

Specifically, in the technical solution adopted by the present invention, with reference to the situation that the guardrail body 1 is in the first state, the accommodating cavity 201 of the first connecting member 2 has a groove 101 extending along the first direction, the first direction here is a direction perpendicular to the platform floor 3, the connecting end of the corresponding guardrail body 1 has a protruding portion, the protruding portion extends to the inside of the groove 101, and the position of the protruding portion is close to the top end of the connecting end; when the connecting end of the guardrail body 1 extends into the bottom of the accommodating cavity 201, the protruding part of the connecting end is positioned at the bottom end of the groove 101, and the guardrail body 1 is in a first state; when the guardrail body 1 needs to be switched from the first state to the second state, the guardrail body 1 is lifted up to enable the connecting end to slide upwards to the top of the accommodating cavity 201 of the first connecting piece 2, the protruding part of the connecting end is located at the top end of the groove 101, the guardrail body 1 can be rotated to enable the guardrail body 1 to rotate towards the direction close to the carriage bottom plate 3 until the guardrail body is switched to the second state, and in the switching process, the protruding part can play a role of a rotating shaft, so that the stability of the guardrail body 1 in the state adjusting process can be improved; similarly, when switching guardrail body 1 to the first state by the second state again, rotate guardrail body 1 to the direction of keeping away from carriage bottom plate 3 to use the recess 101 of first connecting piece 2 as the track, make the link slide to the bottom that holds cavity 201 can, operation method is simple convenient.

Further, referring to fig. 5, in an implementation, the cross-sectional shape of the protrusion is circular, and the groove walls of the groove 101 opposite to each other in the first direction are configured as arc-shaped surfaces.

Specifically, in order to facilitate the switching of the state of the bracket body, the utility model discloses in the technical scheme who takes, can configure the cross sectional shape of foretell bellying into circular, be the cross-section with the vertical face of first direction here, configure recess 101 into the arcwall face at the cell wall of first direction mulberry simultaneously, when the bellying was located the top of recess 101, the bellying contacted with the last cell wall of recess 101 to but relative rotation, thereby can make guardrail body 1 switch between first state and second state.

Further, referring to fig. 2, in a specific implementation, a top of the first connecting member 2 protrudes from an upper surface of the floor 3, and at least a portion of one side of the first connecting member 2 facing the floor 3, which protrudes from the upper surface of the floor 3, is an opening structure penetrating through the accommodating cavity 201;

wherein the height of the top of the first connecting piece 2 protruding from the upper surface of the platform floor 3 is not less than the height of the guardrail body 1 in the first direction when in the second state

Specifically, in order to realize that the guardrail body 1 is contacted and attached with the upper surface of the carriage bottom plate 3 in the second state, the utility model adopts the technical scheme that the bottom end of the first connecting piece 2 can be flush with the lower surface of the carriage bottom plate 3, the upper end of the first connecting piece is higher than the upper surface of the carriage bottom plate 3, and the height which is increased is at least the height of the guardrail body 1 in the first direction when the guardrail body is in the second state; one side of the first connecting member 2 facing the platform floor 3 may be open to avoid blocking the rotation of the connecting end of the guardrail body 1.

Further, referring to fig. 3, in a specific implementation, the guardrail body 1 includes at least two first cross rods 11 and second cross rods 12 parallel to each other, and two first vertical rods 13 connecting corresponding ends of the first cross rods 11 and the second cross rods 12 and extending in a direction away from the first cross rods 11, where an end of the first vertical rod 13 departing from the first cross rods 11 is the connecting end.

Further, referring to fig. 1, in a specific implementation, the guardrail body 1 further includes at least one second vertical rod 14 located between the two first vertical rods 13, the second vertical rod 14 is equal to and parallel to the first vertical rod 13 in length, and an end of the second vertical rod 14 away from the first cross rod 11 is the connecting end;

wherein at least one of the second vertical bars 14 connects the middle points of the first cross bar 11 and the second cross bar 12.

Specifically, in the technical solution adopted by the present invention, the guardrail body 1 can be formed by a plurality of bars, and at least includes two first horizontal bars 11 and second horizontal bars 12 parallel to each other, the first horizontal bar 11 is located on the upper side of the second horizontal bar 12, and a certain distance is provided between the first horizontal bar 11 and the second horizontal bar 12, and further includes two first vertical bars 13 connecting the corresponding ends of the first horizontal bar 11 and the second horizontal bar 12, and the end of the first vertical bar 13 departing from the first horizontal bar 11 is the above-mentioned connecting end; in order to further improve the strength and stability of the guardrail body 1, at least one second vertical rod 14 is further arranged between the two first vertical rods 13, and when one second vertical rod 14 is arranged, the second vertical rod 14 can be connected with the middle point of the first cross rod 11 and the middle point of the second cross rod 12.

Example two

Referring to fig. 2, an embodiment of the present invention provides a vehicle, including: the above-described on-vehicle guard rail is mounted on the side of the floor 3.

Specifically, the vehicle provided by the embodiment may be a truck, such as: bengbuck truck 2529 and 2534, but not limited to this, the lateral part in platform floor 3 is installed to on-vehicle guardrail, guardrail body 1 is through with first connecting piece 2 swing joint, can make guardrail body 1 conveniently switch between first state and second state, thereby can cancel the operation that needs to dismantle guardrail body 1 when unoperated state, can save the required space of depositing guardrail body 1, and the required time of installation and dismantlement guardrail body 1, the condition of obscuring easily that can avoid appearing when depositing guardrail body 1 simultaneously, can effectively improve equipment fixing and the efficiency of dismantling.

It should be noted that in the description of the present specification, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides an on-vehicle guardrail, installs in the lateral part of platform floor, its characterized in that includes:

the first connecting pieces are arranged on the side wall of the carriage bottom plate at intervals;

the guardrail body is provided with at least two connecting ends at the bottom side, and the connecting ends are respectively movably connected with the corresponding first connecting pieces so as to enable the guardrail body to have a first state and a second state;

the first connecting piece is provided with an accommodating cavity matched with the connecting end of the guardrail body and used for accommodating the connecting end of the guardrail body;

when the connecting end of the guardrail body extends into the bottom of the accommodating cavity, the first connecting piece limits the connecting end to keep the guardrail body perpendicular to the carriage bottom plate and the relative position of the guardrail body and the carriage bottom plate corresponding to the first state of the guardrail body;

when the connecting end of the guardrail body moves to the top of the accommodating cavity, the connecting end can rotate towards the direction close to the carriage bottom plate, so that the guardrail body is converted from the first state to the second state, and the guardrail body is parallel to and in contact with the carriage bottom plate;

the connecting end of the guardrail body is provided with a groove extending along a first direction, a bulge extending into the groove is arranged in the accommodating cavity of the first connecting piece, the bulge and the groove can move relatively, and the bulge is close to the top end of the first connecting piece; or the like, or, alternatively,

the accommodating cavity of the first connecting piece is internally provided with a groove extending along a first direction, the connecting end of the guardrail body is provided with a convex part, the convex part and the groove can move relatively, and the convex part is close to the bottom end of the connecting end;

the first direction is perpendicular to the bed floor.

2. The vehicle guardrail of claim 1,

the top end of the first connecting piece is connected with a locking screw, and the part of the locking screw, which extends to the inside of the accommodating cavity of the first connecting piece, is the bulge.

3. The vehicle guardrail of claim 1,

the cross section of the convex part is circular, and the groove wall of the groove opposite to the groove in the first direction is configured into an arc-shaped surface.

4. The vehicular guardrail of claim 3,

the top of the first connecting piece protrudes out of the upper surface of the carriage bottom plate, and at least the part of one side, facing the carriage bottom plate, of the first connecting piece, which protrudes out of the upper surface of the carriage bottom plate is of an opening structure penetrating through the accommodating cavity;

the height of the top of the first connecting piece protruding out of the upper surface of the carriage bottom plate is not less than the height of the guardrail body in the first direction when the guardrail body is in the second state.

5. The vehicle guardrail of claim 1,

the guardrail body includes two piece at least first horizontal poles and the second horizontal pole that is parallel to each other, and connects first horizontal pole with the corresponding tip of second horizontal pole just to the back of two first montants that the direction of first horizontal pole extends, first montant deviates from the tip of first horizontal pole does the link.

6. The vehicular guardrail of claim 5,

the guardrail body further comprises at least one second vertical rod positioned between the two first vertical rods, the second vertical rod and the first vertical rod are equal in length and are arranged in parallel, and the end part, away from the first cross rod, of the second vertical rod is the connecting end;

wherein at least one second vertical rod is connected with the middle points of the first cross rod and the second cross rod.

7. A vehicle, characterized by comprising:

a bed floor;

the vehicular guardrail of any one of claims 1-6 mounted to a side of the bed floor.

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