Overhead guard for vehicle and forklift

By adopting detachable bent connection and bolt connection design in the forklift roof frame, the assembly inconvenience of welding connections and weld cracking problems in the prior art are solved, and the strength of the structure and the convenience of assembly are achieved.

CN222138595UActive Publication Date: 2024-12-10BYD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202323546149.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-25
Publication Date
2024-12-10
Estimated Expiration
2033-12-25

AI Technical Summary

Technical Problem

The welding connection of the rear column of the existing forklift roof guardrails has the risk of inconvenient assembly and cracking of the weld, especially in harsh working conditions.

Method used

The detachable front and rear column assembly design is adopted, and the bending connection of the first column, the second column, the third column, the fourth column and the cross beam is combined with bolt connections to reduce the amount of welding and the number of welds, and stamping is adopted. Process-formed roof panels and reinforcement ribs to enhance structural strength.

Benefits of technology

It achieves small welding volume and easy assembly, reduces the number of welds, avoids the risk of cracking of the post column welds under harsh working conditions, and improves the strength of the structure and the adjustability of the assembly.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222138595U_ABST
    Figure CN222138595U_ABST
Patent Text Reader

Abstract

The overhead guard comprises a front stand column assembly, the front stand column assembly comprises a first stand column, a second stand column and an overhead guard structure, the first stand column and the second stand column are arranged in parallel in a spaced mode, and the upper portions of the first stand column and the second stand column are bent in the horizontal direction; the roof protection structure is fixedly connected to the upper portion of the first stand column and the upper portion of the second stand column. The rear stand column assembly comprises a third stand column, a fourth stand column and a cross beam, the third stand column and the fourth stand column are arranged in a spaced mode, and the two ends of the cross beam are fixedly connected with the upper end of the third stand column and the upper end of the fourth stand column respectively; wherein the front stand column assembly and the rear stand column assembly are detachably and fixedly connected. According to the overhead guard and the forklift, the number of welding seams can be remarkably reduced, and assembly of the overhead guard is simplified.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the technical field of engineering vehicles, and in particular to an overhead guard and a forklift for a vehicle. Background Art

[0002] At present, the rear columns of the forklift overhead guard are usually two separate columns, which are connected to the front columns and the overhead guard structure by welding. There are many welds. On the one hand, the welding workload is large and the assembly is inconvenient. On the other hand, under harsh working conditions, the forklift overhead guard is at risk of cracking along the welds of the rear columns.

[0003] Therefore, improvements are needed to at least partially solve the above problems. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above problems, according to a first aspect of the utility model, there is provided an overhead guard for a vehicle, comprising:

[0006] A front column assembly, the front column assembly comprising a first column, a second column and a roof protection structure, the first column and the second column are spaced apart and the upper portions of the first column and the second column are bent in the horizontal direction, and the roof protection structure is fixedly connected to the upper portions of the first column and the second column;

[0007] A rear pillar assembly, the rear pillar assembly comprising a third pillar, a fourth pillar and a crossbeam, the third pillar and the fourth pillar are arranged at intervals, and two ends of the crossbeam are respectively fixedly connected to the upper end of the third pillar and the upper end of the fourth pillar;

[0008] Wherein, the front column assembly and the rear column assembly are detachably fixedly connected.

[0009] Exemplarily, the front pillar assembly further includes a first reinforcing rib, the first reinforcing rib is fixedly connected to the upper portion of the first pillar and the upper portion of the second pillar, and the first reinforcing rib is located on a side of the first pillar and the second pillar facing the rear pillar assembly, wherein a plurality of through holes are provided on the first reinforcing rib;

[0010] The rear pillar assembly further comprises a connecting plate, the connecting plate being fixedly connected to a side of the cross beam facing the first reinforcing rib, and a plurality of bolt holes being arranged at positions corresponding to the plurality of through holes on the connecting plate;

[0011] The overhead guard frame further includes a plurality of bolts, which pass through the plurality of through holes and engage with the plurality of bolt holes, so that the front column assembly and the rear column assembly are detachably fixedly connected.

[0012] Exemplarily, the third column, the fourth column and the crossbeam are formed by integrally bending a flat tube.

[0013] Exemplarily, the roof protection structure includes a roof protection plate having a plurality of strip-shaped holes arranged in parallel and at intervals.

[0014] Exemplarily, the roof guard plate is integrally formed by a stamping process.

[0015] Exemplarily, the roof guard is partially located above the cross beam.

[0016] Exemplarily, the rear pillar assembly further includes a second reinforcing rib, and two ends of the second reinforcing rib are respectively fixedly connected to the third pillar and the fourth pillar.

[0017] Exemplarily, the front pillar assembly further includes a baffle, two sides of which are fixedly connected to the lower portion of the first pillar and the lower portion of the second pillar respectively.

[0018] Exemplarily, the front pillar assembly further includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are respectively fixedly connected to the lower portion of the first pillar and the lower portion of the second pillar, and the first mounting plate and the second mounting plate are both provided with through holes;

[0019] The rear pillar assembly also includes a third mounting plate and a fourth mounting plate, which are fixedly connected to the lower portion of the third pillar and the lower portion of the fourth pillar respectively, and the third mounting plate and the fourth mounting plate are both provided with through holes.

[0020] According to a second aspect of the utility model, a forklift is provided, which comprises the overhead guard as described above.

[0021] According to the overhead guard for vehicles and forklift of the utility model, the first column, the second column and the overhead guard structure are fixedly connected to form a front column assembly, the third column, the fourth column and the cross beam are fixedly connected to form a rear column assembly, the front column assembly and the rear column assembly are detachably fixedly connected instead of being welded, the welding amount is small, the assembly is convenient, the number of welds is small, and the forklift overhead guard can be effectively prevented from cracking along the rear column weld under harsh working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings of the present application are hereby used as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the device and principle of the present application. In the drawings,

[0023] Figure 1 is a schematic diagram of the overall structure of an overhead guard for a vehicle according to an embodiment of the present application;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of the center front pillar assembly;

[0025] Figure 3 for Figure 1 Structural schematic diagram of the center rear pillar assembly;

[0026] Figure 4 for Figure 1 Explosion diagram of the middle roof guard;

[0027] Figure 5 It is a schematic diagram of the structure of the connection between the front pillar assembly and the rear pillar assembly.

[0028] Description of reference numerals:

[0029] 100-front pillar assembly, 110-first pillar, 120-second pillar, 130-top guard plate, 140-first reinforcement rib, 141-through hole, 150-baffle, 160-first mounting plate, 170-second mounting plate;

[0030] 200-rear pillar assembly, 210-third pillar, 220-fourth pillar, 230-crossbeam, 240-connecting plate, 241-bolt hole, 250-second reinforcing rib, 260-third mounting plate, 270-fourth mounting plate;

[0031] 300-bolts. DETAILED DESCRIPTION

[0032] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0033] It should be understood that the present application can be implemented in different forms and should not be construed as being limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and fully convey the scope of the present application to those skilled in the art. In the accompanying drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity. The same reference numerals throughout represent the same elements.

[0034] It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as a second element, component, region, layer or part.

[0035] Spatially relative terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein for convenience of description to describe the relationship of one element or feature to other elements or features shown in the figures. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation shown in the figures.

[0036] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0037] Embodiments of the utility model are described herein with reference to cross-sectional views as schematic diagrams of ideal embodiments (and intermediate structures) of the present application. In this way, variations in the shapes shown due to, for example, manufacturing techniques and / or tolerances can be expected. Therefore, the embodiments of the present application should not be limited to the specific shapes shown herein, but include shape deviations due to, for example, manufacturing. Therefore, what is shown in the figures is schematic in nature, and their shapes are not intended to display the actual shape of the device and are not intended to limit the scope of the present application.

[0038] See attached Figure 1-5 An overhead guard for a vehicle according to an embodiment of the present application is exemplarily described. The overhead guard can be applied to a forklift or other suitable engineering vehicles that need to be equipped with an overhead guard.

[0039] The overhead guard frame includes a front column assembly 100 and a rear column assembly 200. The front column assembly 100 includes a first column 110, a second column 120 and an overhead guard structure. The first column 110 and the second column 120 are arranged at intervals and the upper parts are bent in the horizontal direction. The overhead guard structure is fixedly connected to the upper parts of the first column 110 and the second column 120. The rear column assembly 200 includes a third column 210, a fourth column 220 and a crossbeam 230. The third column 210 and the fourth column 220 are arranged at intervals. The two ends of the crossbeam 230 are fixedly connected to the upper ends of the third column 210 and the fourth column 220, respectively. The front column assembly 100 and the rear column assembly 200 are detachably fixedly connected.

[0040] According to the overhead guard of the present application, the first column 110, the second column 120 and the overhead guard structure are fixedly connected to form a front column assembly 100, and the third column 210, the fourth column 220 and the crossbeam 230 are fixedly connected to form a rear column assembly 200. The front column assembly 100 and the rear column assembly 200 are detachably fixedly connected instead of being welded, with a small amount of welding, easy assembly, and a small number of welds, which can effectively prevent the forklift overhead guard from cracking along the rear column welds under harsh working conditions.

[0041] See attached Figure 2 In this embodiment, the first column 110 and the second column 120 are arranged in parallel and spaced apart, and the lower part of the first column 110 and the lower part of the second column 120 extend approximately in the vertical direction (or in a direction perpendicular to the ground), and are slightly inclined relative to the vertical direction. The upper part of the first column 110 and the upper part of the second column 120 are both bent in the horizontal direction, that is, the upper part of the first column 110 and the upper part of the second column 120 are partially extended in the horizontal direction. The part of the upper part of the first column 110 extending in the horizontal direction and the part of the upper part of the second column 120 extending in the horizontal direction are located on the same plane. The first column 110 and the second column 120 can be formed by bending a flat passage in one piece, so that they can have better structural strength. In some embodiments, the lower part of the first column 110 and the lower part of the second column 120 can also be configured to extend in the vertical direction, perpendicular to their upper parts.

[0042] The roof protection structure is fixedly connected to the upper part of the first column 110 and the upper part of the second column 120, and is used to protect the vehicle driver above him. Figure 2In this embodiment, the roof guard structure includes a roof guard plate 130, and the two sides of the roof guard plate 130 are respectively connected to the upper part of the first column 110 and the upper part of the second column 120 by welding, and the roof guard plate 130 has a plurality of strip holes arranged in parallel and at intervals. The arrangement of the strip holes can save materials and reduce weight. The parallel and spaced arrangement of the plurality of strip holes can ensure the structural strength and stress uniformity of the roof guard plate 130, and avoid stress concentration in local areas. By setting the roof guard structure into a plate shape, the number of parts can be reduced and the assembly process can be simplified. The roof guard plate 130 can be integrally formed by a stamping process, so as to facilitate production. The roof guard structure of this embodiment can significantly reduce the weight of parts and reduce the vibration above the roof guard frame under harsh working conditions.

[0043] In some embodiments, the roof protection structure may include a plurality of connecting rods arranged in parallel and at intervals, and both ends of each connecting rod are respectively connected to the upper portion of the first column 110 and the upper portion of the second column 120 .

[0044] See attached Figure 2 , 4 In this embodiment, the top guard plate 130 is located between the upper part of the first column 110 and the upper part of the second column 120. The top guard plate 130 is provided with a first folded edge on the side facing the first column 110, and a second folded edge on the side facing the second column 120. The first folded edge is in contact with the side of the first column 110 facing the second column 120, and the first folded edge is welded to the first column 110, and the second folded edge is in contact with the side of the second column 120 facing the first column 110, and the second folded edge is welded to the second column 120. In some embodiments, the top guard plate 130 may not be provided with the first folded edge and the second folded edge on both sides, but directly covers the upper surface of the first column 110 and the upper surface of the second column 120, and is welded to the upper surface of the first column 110 and the upper surface of the second column 120. In some embodiments, the top guard plate 130 and the upper portion of the first column 110 and the upper portion of the second column 120 may be riveted or fixedly connected in other connection methods known to those skilled in the art.

[0045] See attached Figure 2 , 4 In this embodiment, the front pillar assembly 100 further includes a baffle 150, and the two sides of the baffle 150 are fixedly connected to the lower part of the first pillar 110 and the lower part of the second pillar 120 respectively. Specifically, the two sides of the baffle 150 are fixedly connected to the first pillar 110 and the second pillar 120 respectively by welding. On the one hand, the baffle 150 can protect the driver in front of the vehicle driver, and on the other hand, it can also be used to install the vehicle's operating devices, such as operating levers. In some embodiments, the two sides of the baffle 150 can be fixedly connected to the first pillar 110 and the second pillar 120 by riveting or other connection methods known to those skilled in the art.

[0046] See attached Figure 2 , 4 In this embodiment, the front pillar assembly 100 further includes a first mounting plate 160 and a second mounting plate 170, which are respectively fixedly connected to the lower portion of the first pillar 110 and the lower portion of the second pillar 120. The first mounting plate 160 is located at one end of the first pillar 110 away from the roof protection structure, and the second mounting plate 170 is located at one end of the second pillar 120 away from the roof protection structure. The first mounting plate 160 and the second mounting plate 170 are respectively fixedly connected to the first pillar 110 and the second pillar 120 by welding, and both the first mounting plate 160 and the second mounting plate 170 are provided with through holes, which are used for bolts to pass through. Thus, the first mounting plate 160 and the second mounting plate 170 can be fixed to the vehicle body by bolts, that is, the front pillar assembly 100 can be fixed to the vehicle body by the first mounting plate 160 and the second mounting plate 170, and shock-absorbing pads can be installed between the vehicle body and the first mounting plate 160 and the second mounting plate 170. After the shock-absorbing pads are installed, the vibration of the baffle 150 and the roof guard structure under harsh working conditions can be reduced, the risk of damage to the components of the front pillar assembly 100 can be reduced, and the driving comfort of the driver can be improved.

[0047] See attached Figure 3 , 4 In this embodiment, the third column 210 and the fourth column 220 are arranged at intervals, and the two ends of the cross beam 230 are fixedly connected to the upper ends of the third column 210 and the upper ends of the fourth column 220 respectively. The third column 210, the fourth column 220 and the cross beam 230 are in an inverted U shape as a whole, and the third column 210 and the fourth column 220 can be parallel or approximately parallel. The third column 210, the fourth column 220 and the cross beam 230 are formed by bending the flat through as a whole, so that the third column 210, the fourth column 220 and the cross beam 230 as a whole can have a higher structural strength. In some embodiments, the third column 210, the fourth column 220 and the cross beam 230 can be connected as a whole by welding three separate flat throughs.

[0048] See attached Figure 3 , 4In this embodiment, the rear pillar assembly 200 further includes a second reinforcing rib 250, and the two ends of the second reinforcing rib 250 are respectively fixedly connected to the third pillar 210 and the fourth pillar 220. The provision of the second reinforcing rib 250 can enhance the overall structure of the rear pillar assembly 200. The second reinforcing rib 250 can be a flat through hole, which is close to the third pillar 210 and the fourth pillar 220 and away from the cross beam 230. The two ends of the second reinforcing rib 250 are fixedly connected to the third pillar 210 and the fourth pillar 220 by welding. In some embodiments, there can be multiple second reinforcing ribs 250, which are arranged in parallel and spaced apart between the third pillar 210 and the fourth pillar 220, and the two ends of each second reinforcing rib 250 are fixedly connected to the third pillar 210 and the fourth pillar 220 by welding.

[0049] See attached Figure 3 , 4 In this embodiment, the rear pillar assembly 200 further includes a third mounting plate 260 and a fourth mounting plate 270, which are respectively fixedly connected to the lower portion of the third pillar 210 and the lower portion of the fourth pillar 220. The first mounting plate 160 is located at the end of the third pillar 210 away from the cross beam 230, and the fourth mounting plate 270 is located at the end of the fourth pillar 220 away from the cross beam 230. The third mounting plate 260 and the fourth mounting plate 270 are both U-shaped, and the third mounting plate 260 and the fourth mounting plate 270 are respectively fixedly connected to the third pillar 210 and the fourth pillar 220 by welding, and the third mounting plate 260 and the fourth mounting plate 270 are both provided with through holes, which are used for bolts to pass through. Thus, the third mounting plate 260 and the fourth mounting plate 270 can be fixed to the vehicle body by bolts, that is, the rear pillar assembly 200 can be fixed to the vehicle body by the third mounting plate 260 and the fourth mounting plate 270, and shock-absorbing pads can be installed between the vehicle body and the third mounting plate 260 and the fourth mounting plate. After the shock-absorbing pads are installed, the vibration of the rear pillar assembly 200 under harsh working conditions can be reduced, the risk of damage to the parts of the rear pillar assembly 200 is reduced, and the driving comfort of the driver is improved.

[0050] In this embodiment, the overhead guard further includes a plurality of bolts 300 , and the front column assembly 100 is detachably fixedly connected to the rear column assembly 200 via the plurality of bolts 300 .

[0051] Specifically, see Appendix Figure 2 , 45. The front pillar assembly 100 further includes a first reinforcing rib 140, which is fixedly connected to the upper portion of the first pillar 110 and the upper portion of the second pillar 120, and is located on the side of the first pillar 110 and the second pillar 120 facing the rear pillar assembly 200. The first reinforcing rib 140 is located between the upper portion of the first pillar 110 and the upper portion of the second pillar 120, and the two ends of the first reinforcing rib 140 are respectively welded to the first folded edge and the second folded edge, and the upper side of the first reinforcing rib 140 is welded to the top guard plate 130, that is, the first reinforcing rib 140 is fixedly connected to the upper portion of the first pillar 110 and the upper portion of the second pillar 120 through the top guard plate 130. The first reinforcing rib 140 is provided with a plurality of through holes 141, which are used for bolts to pass through, and the through holes 141 can be a plain hole (the inner wall surface of the hole has no thread), or a bolt hole (the inner wall surface of the hole has a thread). The first reinforcing rib 140 may be a strip plate or a flat plate. In some embodiments, the two ends of the first reinforcing rib 140 may be directly fixedly connected to the upper portion of the first column 110 and the upper portion of the second column 120 by welding, and the upper portion of the first reinforcing rib 140 may be fixedly connected to the top guard plate 130 by welding. The provision of the first reinforcing rib 140 may enhance the overall structural strength of the front column assembly 100.

[0052] See attached Figure 3 , 5 , the rear pillar assembly 200 further includes a connecting plate 240, which is fixedly connected to the side of the cross beam 230 facing the first reinforcing rib 140, and a plurality of bolt holes 241 are provided at positions corresponding to the plurality of through holes 141 on the connecting plate 240, and the inner wall of the bolt hole 241 is provided with a thread matching the bolt 300. In this embodiment, there are a plurality of connecting plates 240, all of which are fixedly connected to the cross beam 230 by welding, and each connecting plate 240 is provided with a portion of bolt holes 241 matching the through holes 141. In some embodiments, there may be only one connecting plate 240, which is fixedly connected to the cross beam 230 by welding, and is provided with all bolt holes 241 matching the through holes 141. The connecting plate 240 welded to the cross beam 230 can enhance the structural strength of the cross beam 230 and reduce the risk of cracking of the cross beam 230 under harsh working conditions.

[0053] A plurality of bolts 300 pass through a plurality of through holes 141 and mesh with a plurality of bolt holes 241, so that the first reinforcing rib 140 and the connecting plate 240 are detachably fixedly connected by the plurality of bolts 300, that is, the front column assembly 100 and the rear column assembly 200 are detachably fixedly connected by the plurality of bolts 300. The method of connecting and assembling the front column assembly 100 and the rear column assembly 200 by bolts 300 can greatly reduce the number of welds above the rear column and reduce the risk of cracking of the rear column along these welds under harsh working conditions. In addition, the amount of welding can be significantly reduced, the assembly process can be simplified, and the adjustability of the front column assembly 100 and the rear column assembly 200 during assembly can be greatly improved, making the assembly of the overhead guard more convenient. In some embodiments, the front column assembly 100 and the rear column assembly 200 can also be detachably fixedly connected by other connectors known to those skilled in the art similar to bolts 300, and this application is not limited to this.

[0054] In this embodiment, after the front pillar assembly 100 and the rear pillar assembly 200 are detachably fixedly connected by bolts 300, the roof guard plate 130 is partially located above the cross beam 230. Therefore, when an object above the vehicle falls onto the roof guard plate 130, the first pillar 110, the second pillar 120 and the rear pillar assembly 200 can jointly bear the weight of the roof guard plate 130, thereby significantly improving the protective effect of the roof guard plate 130.

[0055] The present application also provides a forklift, which includes the overhead guard as described above.

[0056] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. Those of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0057] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0058] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various utility model aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features explicitly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features that are less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0059] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0060] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0061] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. A roof guard for a vehicle, characterized in that: include: A front column assembly, the front column assembly comprising a first column, a second column and a roof protection structure, the first column and the second column are spaced apart and the upper portions of the first column and the second column are bent in the horizontal direction, and the roof protection structure is fixedly connected to the upper portions of the first column and the second column; A rear pillar assembly, the rear pillar assembly comprising a third pillar, a fourth pillar and a crossbeam, the third pillar and the fourth pillar are arranged at intervals, and two ends of the crossbeam are respectively fixedly connected to the upper end of the third pillar and the upper end of the fourth pillar; Wherein, the front column assembly and the rear column assembly are detachably fixedly connected.

2. The overhead guard according to claim 1, characterized in that: The front pillar assembly further includes a first reinforcing rib, the first reinforcing rib being fixedly connected to the upper portion of the first pillar and the upper portion of the second pillar, and the first reinforcing rib being located on a side of the first pillar and the second pillar facing the rear pillar assembly, wherein a plurality of through holes are provided on the first reinforcing rib; The rear pillar assembly further comprises a connecting plate, the connecting plate being fixedly connected to a side of the cross beam facing the first reinforcing rib, and a plurality of bolt holes being arranged at positions corresponding to the plurality of through holes on the connecting plate; The overhead guard frame further includes a plurality of bolts, which pass through the plurality of through holes and engage with the plurality of bolt holes, so that the front column assembly and the rear column assembly are detachably fixedly connected.

3. The overhead guard according to claim 1, characterized in that: The third column, the fourth column and the crossbeam are formed by integrally bending a flat tube.

4. The overhead guard according to claim 1, characterized in that: The roof protection structure comprises a roof protection plate, and the roof protection plate is provided with a plurality of strip holes arranged in parallel and at intervals.

5. The overhead guard according to claim 4, characterized in that: The top guard plate is integrally formed by a stamping process.

6. The overhead guard according to claim 4, characterized in that: The roof guard is partially located above the cross beam.

7. The overhead guard according to claim 1, characterized in that: The rear pillar assembly further includes a second reinforcing rib, and two ends of the second reinforcing rib are respectively fixedly connected to the third pillar and the fourth pillar.

8. The overhead guard according to claim 1, characterized in that: The front pillar assembly further includes a baffle, two sides of which are fixedly connected to the lower portion of the first pillar and the lower portion of the second pillar respectively.

9. The overhead guard according to claim 1, characterized in that: The front pillar assembly further includes a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are respectively fixedly connected to the lower portion of the first pillar and the lower portion of the second pillar, and the first mounting plate and the second mounting plate are both provided with through holes; The rear pillar assembly further includes a third mounting plate and a fourth mounting plate, wherein the third mounting plate and the fourth mounting plate are respectively fixedly connected to the lower portion of the third pillar and the lower portion of the fourth pillar, and the third mounting plate and the fourth mounting plate are both provided with through holes.

10. A forklift, characterized in that: It comprises the overhead guardrail as described in any one of claims 1-9.