Cab supporting device suitable for different commercial vehicle types

By designing a cab support device including fixed components and adjustment components, the problem of inconsistent cab support of different models in the prior art is solved, and the versatility and convenience of the support device are realized, and the cost and workload are reduced.

CN222646682UActive Publication Date: 2025-03-21DONGFENG SHENYU VEHICLE CO LTD
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Patent Information

Application Number
CN202420647711.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-29
Publication Date
2025-03-21
Estimated Expiration
2034-03-29

AI Technical Summary

Technical Problem

The existing cab support devices cannot be generalized due to the different front and rear suspension heights and positions of different cabs, resulting in inconvenient recycling, difficult management and ordering, high manufacturing costs, and cumbersome workflow and huge workload when switching cabs.

Method used

A cab support device including a fixing assembly and an adjusting assembly is designed. The fixing assembly consists of a support frame body, multiple vertical hollow fixing lower brackets and height limiting devices. The adjustment assembly consists of an adjustable fixed upper bracket and a connecting support. Through these components, the support points and height can be flexibly adjusted to adapt to different models of cabs.

Benefits of technology

The versatility and convenience of the cab support device is realized, the types and differentiation of the support device are reduced, the storage management and use convenience is improved, the purchase cost is reduced, the cab switching process is simplified, and the working efficiency is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cab supporting device suitable for different commercial vehicle types, which relates to the technical field of heavy-duty car production and comprises a fixing component and an adjusting component. The fixing assembly comprises a supporting frame body and a plurality of vertical hollow fixing lower supports arranged in the length direction and the width direction of the supporting frame body, height limiting devices are arranged on the fixing lower supports, and a hoisting part is arranged on the supporting frame body; the adjusting assembly comprises an upper fixing support, one end of the upper fixing support is arranged in the lower fixing support, the upper fixing support can vertically move along the lower fixing support, and a connecting support used for being connected with a front suspension and a rear suspension of a cab is arranged at the top of the upper fixing support. The supporting mechanism is suitable for cabs of various models and sizes, the types and differences of the supporting mechanism can be greatly reduced, and the storage management and use convenience is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of heavy-duty vehicle production, in particular to a cab supporting device suitable for different commercial vehicle models. Background Art

[0002] During the production process of the cab, in order to protect the cab, a supporting device must be installed at the bottom of the cab during online production, offline storage or transfer switching, and the supporting mechanism of the cab is required to be stably placed, reliable and safe. With the development of the automotive field, commercial vehicle production now develops and produces many types of cabs to meet market demand, and the structure and form of the cab are also tending to be diversified. In order to meet the support needs of different types of cabs, it is often necessary to make cab supporting devices of different structures according to the form of each cab.

[0003] However, the positions and structures of the front and rear suspension support points under different cabs are different (the structural types of the front and rear suspensions, the positions of the front and rear suspensions in the X-axis direction, and the heights of the front and rear suspensions in the Z-axis direction are different). The existing support mechanism cannot achieve universal support for various types of cabs due to its fixed structure. This requires the same manufacturer to have different types of support devices, resulting in various problems such as inconvenient recovery of multiple support devices, difficulty in management and adjustment, and high cost of manufacturing and purchasing support devices. At the same time, when switching the vehicle cab, it is also necessary to adjust and replace different cab support mechanisms for multiple times according to the switching process, which not only increases the workload, but also causes a lot of time and manpower waste. At the same time, there will be an increased risk of cab wear. Utility Model Content

[0004] The present application provides a cab support device suitable for different commercial vehicle models, which can solve the technical problems in the prior art that the existing cab support device cannot be universalized due to the different heights and positions of the front and rear suspensions of different cabs, resulting in inconvenient recycling, difficult management and sequencing, high manufacturing costs, and the technical problems that the supporting equipment is not universal, which also causes cumbersome switching workflows when switching cabs.

[0005] The embodiment of the present application provides a cab support device applicable to different commercial vehicle models, including:

[0006] A fixing assembly, the fixing assembly comprising a support frame and a plurality of vertical hollow fixed lower brackets arranged along the length direction and the width direction of the support frame, the fixed lower brackets are provided with a height limiting device, and the support frame is provided with a hoisting part;

[0007] The adjusting assembly comprises a fixed upper bracket having one end arranged in the fixed lower bracket and capable of vertically moving along the fixed lower bracket, and a connecting support for connecting with the front and rear suspensions of the cab is arranged on the top of the fixed upper bracket.

[0008] In one embodiment, a plurality of connecting cross bars are arranged between the two supporting cross bars, which are parallel to each other and have two ends respectively connected to the two supporting cross bars.

[0009] In one embodiment, a plurality of parallel connecting cross bars are arranged between the two supporting cross bars.

[0010] In one embodiment, the bottom of the fixed lower bracket is arranged on the connecting cross bar.

[0011] In one embodiment, the height limiting device includes a plurality of first positioning holes longitudinally arranged on the fixed lower bracket and a positioning pin arranged in one of the first positioning holes.

[0012] In one embodiment, a second positioning hole is provided at the bottom of the fixed upper bracket.

[0013] In one embodiment, the positioning pin passes through the first positioning hole and the second positioning hole.

[0014] In one embodiment, the lifting portion includes lifting ears arranged at both ends of the supporting cross bar and a forklift ring arranged on the rod body of the supporting cross bar.

[0015] In one embodiment, the connecting support includes a supporting bottom plate horizontally arranged on the top of the fixed upper bracket and a limiting side plate vertically arranged on a side of the supporting bottom plate away from the front and rear suspensions of the cab.

[0016] In one embodiment, an isolation piece is disposed on the top of the connection support.

[0017] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0018] 1. The cab support device of the present application is applicable to different commercial vehicle models. Through multiple fixed lower brackets arranged in the length direction and width direction of the support frame, the appropriate fixed lower bracket can be flexibly selected as the support point according to the position of the front and rear suspensions to meet the scheduling requirements in the X-axis and Y-axis directions. The fixed upper bracket arranged in the fixed lower bracket and adjustable up and down can adjust the cab support device of the present application to a suitable height according to the position of the front and rear suspensions of different models of cabs to meet the scheduling requirements in the Z-axis direction, thereby improving the versatility and convenience of the cab support device of the present application. It is no longer necessary to design and purchase each type of cab separately, which greatly reduces the types and differentiation of cab support devices, improves storage management and convenience of use, and also reduces the capital investment in purchasing cab support devices.

[0019] 2. The cab support device applicable to different commercial vehicle models in the present application can realize the universality of the cab support mechanism, and when the cab is switched, the cab can be universal in the cab factory and the main engine factory, thereby reducing the number of reverse transportation, reducing the risk and workload of reverse transportation, and improving work efficiency;

[0020] 3. The cab support device in this application is suitable for different commercial vehicle models, has a simple structure, low manufacturing cost, and is convenient for subsequent maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the structure of a cab support device applicable to different commercial vehicle models provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of a support frame structure in a cab support device applicable to different commercial vehicle models provided in an embodiment of the present application;

[0024] Figure 3 A side view of a connecting support and a height limit device in a cab support device suitable for different commercial vehicle models provided in an embodiment of the present application.

[0025] In the figure: 1, support frame; 101, support cross bar; 102, connecting cross bar; 2, fixed lower bracket; 3, fixed upper bracket; 4, connecting support; 401, support bottom plate; 402, limiting side plate; 501, lifting ear; 502, forklift ring; 6, first positioning hole; 7, positioning pin; 8, second positioning hole; 9, isolation piece. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] The embodiment of the present application provides a cab support device suitable for different commercial vehicle models, which can solve the technical problems in the prior art that the existing cab support device cannot be universalized due to the different heights and positions of the front and rear suspensions of different models of cabs, resulting in inconvenience in recycling, difficulty in management and adjustment, and high manufacturing cost. At the same time, it also causes the technical problems that the switching workflow is cumbersome and the workload is huge when switching cabs due to the non-universality of the supporting equipment.

[0028] Figure 1 is a schematic diagram of a cab support device structure applicable to different commercial vehicle models provided in an embodiment of the present application, such as Figure 1 As shown, the cab support device suitable for different commercial vehicle models in the present application includes a fixing component and an adjusting component. The fixing component is the gravity bearing body of the cab, which is used to be firmly placed on the ground or other bearing bodies. The adjusting component is mainly used to connect with the cab and adjust its own connection posture according to the height and position of the front and rear suspensions of different cabs to adapt to the shapes of various cabs.

[0029] Among them, the fixed component includes a support frame body 1 and several vertical hollow fixed lower brackets 2 arranged along the length and width directions of the support frame body 1, the fixed lower bracket 2 is provided with a height limiting device, and the support frame body 1 is provided with a lifting part; the adjustment component includes a fixed upper bracket 3, one end of which is arranged in the fixed lower bracket 2 and can move vertically along the fixed lower bracket 2, and the top of the fixed upper bracket 3 is provided with a connecting support 4 for connecting to the front and rear suspensions of the cab.

[0030] The support frame 1 serves as a carrier of the support device, and its bottom is in contact with the ground or other carriers. Based on the appearance of the cab, the support frame 1 is in the shape of a rectangular frame. There are multiple fixed lower brackets 2, and multiple fixed lower brackets 2 are arranged on the surface of the support frame 1 in the length and width directions, and the bottom of the fixed lower bracket 2 is fixedly connected to the top of the support frame 1. In the present application, several fixed lower brackets 2 arranged along the width direction of the support frame 1 are a group, and multiple groups of fixed lower brackets 2 are arranged on the support frame 1, and multiple groups of fixed lower brackets 2 are arranged along the length direction of the support frame 1. At the same time, there is no specific restriction on the height of the fixed lower bracket 2, but the heights of the fixed lower brackets 2 in the same group are equal, and the heights of the fixed lower brackets 2 in different groups can be selected according to the actual size of the cab.

[0031] When connecting the cab support device in the present application to the cab, first select at least four fixed lower brackets 2 at appropriate corresponding positions as support points according to the positions of the front and rear suspensions of different cabs, and then place the fixed upper bracket 3 in the corresponding fixed lower bracket 2. Finally, according to the height of the front and rear suspensions of the cab, adjust the longitudinal displacement height of the fixed upper bracket 3 in the fixed lower bracket 2, and fix the position of the fixed upper bracket 3 using a height limiting device.

[0032] Furthermore, in one embodiment of the present application, the support frame 1 is hollow to reduce its own weight and facilitate dispatch and transportation, and the cross-section of the fixed lower bracket 2 includes but is not limited to a circle or a square. Based on the movement and connection mode of the fixed upper bracket 3 and the fixed lower bracket 2, no matter what form the cross-section of the fixed lower bracket 2 is set to, the fixed upper bracket 3 is always consistent with the fixed lower bracket 2. The bottom end of the fixed upper bracket 3 is set in the fixed lower bracket 2 and can be longitudinally translated in the fixed upper bracket 3. Therefore, the cross-sectional area of ​​the fixed upper bracket 3 needs to be smaller than the cross-sectional area of ​​the fixed lower bracket 2 to ensure the longitudinal movement space of the fixed upper bracket 3, so as to always fit the height of the front and rear suspensions of different cabs.

[0033] The height limiting device provided on the fixed lower bracket 2 can limit the height adjustment of the fixed upper bracket 3 to ensure the stable support of the support device in the present application. In the present application, the fixed upper bracket 3 can be hollow to reduce the deadweight of the support device in the present application and improve the convenience, or it can be a solid rod to improve the load-bearing capacity of the support device in the present application. There is no specific restriction in the present application. The bottom of the fixed upper bracket 3 is provided in the fixed lower bracket 2, and a connecting support 4 is provided on the top of the fixed upper bracket 3. The number of the fixed upper brackets 3 is at least 4, which are respectively opposite to the front and rear suspension connection of the cab, and the number of the connecting supports 4 is equal to that of the fixed upper brackets 3. The connecting supports 4 switch positions in different groups of fixed lower brackets 2 together with the fixed upper brackets 3 to adjust the lateral position. In actual use, first adjust the placement position of the fixed upper bracket 3 according to the position of the front and rear suspension of different cabs and fix the height of the fixed upper bracket 3, and then directly place the cab on the connecting support 4.

[0034] The hoisting part is arranged on the supporting frame 1. During the operation of getting the cab on and off the line and transferring the cab, it is usually necessary to cooperate with the transfer hoisting equipment. Therefore, the hoisting part can facilitate the connection of the transfer equipment and improve the transfer efficiency.

[0035] Furthermore, Figure 2 A schematic diagram of the structure of a support frame 1 in a cab support device suitable for different commercial vehicle models provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, a plurality of connecting cross bars 102 are arranged between the two supporting cross bars 101, and the two ends of the connecting cross bars 102 are respectively connected to the supporting cross bars 101 on both sides, so as to limit and fix the supporting cross bars 101, so as to improve the overall stability and integrity of the cab support device in the present application. The cross sections of the supporting cross bars 101 and the connecting cross bars 102 include but are not limited to square or circular. In order to further improve the placement stability of the cab support device in the present application, in one embodiment of the present application, the supporting cross bars 101 and the connecting cross bars 102 are both hollow square tubes, and the material of the supporting cross bars 101 and the connecting cross bars 102 is steel, which fits the outer shape of the bottom of the cab. While meeting the strength of the supporting cab, it not only reduces the manufacturing material cost and the weight of the support frame 1 itself, but also facilitates the installation and transportation operations of the staff.

[0036] Furthermore, the bottom of the fixed lower bracket 2 is arranged on the connecting cross bar 102. In the present application, the connecting cross bar 102 is not only used to fix the two supporting cross bars 101 to improve the overall stability, but also used to provide a support point for the fixed lower bracket 2. Specifically, in one embodiment of the present application, the connecting cross bar 102 is a metal square tube, and the bottom of both ends of the connecting cross bar 102 is fixedly connected to the top of the supporting cross bar 101, and the bottom of the fixed lower bracket 2 is fixedly connected to the top of the connecting cross bar 102, and several fixed lower brackets 2 arranged on the same connecting cross bar 102 are a group, and each connecting cross bar 102 is provided with a group of fixed lower brackets 2.

[0037] Further, Figure 3 A side view of a connecting support 4 and a height limit device in a cab support device suitable for different commercial vehicle models provided in an embodiment of the present application, such as Figure 3 As shown, the height limiting device includes a plurality of first positioning holes 6 longitudinally arranged on the fixed lower bracket 2 and a positioning pin 7 arranged in one of the first positioning holes 6. The number of the first positioning holes 6 is multiple and they are equidistantly arranged on the fixed lower bracket 2. The first positioning hole 6 can be a single through hole opened only on one side of the fixed lower bracket 2, or it can be a double-sided through hole penetrating the two sides of the fixed lower bracket 2. There is no specific restriction in the present application. When the first positioning hole 6 is a double-sided through hole penetrating the two sides of the fixed lower bracket 2, the length of the positioning pin 7 needs to be greater than the cross-sectional length of the fixed lower bracket 2 to ensure that the positioning pin 7 completely penetrates the fixed lower bracket 2. At the same time, in order to prevent the positioning pin 7 from falling off and enhance the positioning stability, a nut for fixing the penetration end of the positioning pin 7 can be correspondingly provided at one end of the rod body through which the positioning pin 7 penetrates the fixed lower bracket 2.

[0038] Furthermore, in one embodiment of the present application, in order to facilitate the storage of the positioning pin 7, a connecting chain can be added to the end of the positioning pin 7 away from the fixed lower bracket 2, and the two ends of the connecting chain are respectively connected to the positioning pin 7 and the cab support device body in the present application to prevent the positioning pin 7 from falling or being lost when the positioning pin 7 is pulled out.

[0039] Furthermore, a second positioning hole 8 is provided at the bottom of the fixed upper bracket 3. The diameter of the second positioning hole 8 is the same as that of the first positioning hole 6 and is larger than that of the positioning pin 7. The number of the second positioning holes 8 is not specifically limited in the present application. The second positioning hole 8 can be one or more. When the number of the second positioning hole 8 is one, it is only necessary to ensure that the second positioning hole 8 is docked with the first positioning hole 6. When the number of the second positioning holes 8 is more than one, the setting distance between each second positioning hole 8 must be equal to the spacing distance between the multiple first positioning holes 6. Similarly, the second positioning hole 8 passes through the fixed upper bracket 3 in the same form as the first positioning hole 6. It can be a single through hole opened only on one side of the fixed upper bracket 3, or it can be a double-sided through hole passing through both sides of the fixed upper bracket 3. After the height of the fixed upper bracket 3 is adjusted according to the front and rear suspension heights of the cab, the first positioning hole 6 and the second positioning hole 8 overlap, and then the positioning pin 7 passes through the first positioning hole 6 and the second positioning hole 8.

[0040] Further, see Figure 1 The lifting part includes lifting ears 501 arranged at both ends of the supporting cross bar 101 and forklift rings 502 arranged on the rod body of the supporting cross bar 101. There are four lifting ears 501, which are respectively arranged above the two ends of the two supporting cross bars 101 to facilitate connection with lifting equipment. In some usage scenarios, it may be necessary to cooperate with a forklift to transport the cab support device in this application. Therefore, the forklift ring 502 is arranged on the rod body in the middle position of the supporting cross bar 101, and two forklift rings 502 are arranged on the rod body of each supporting cross bar 101. The forklift rings 502 on different supporting cross bars 101 are positioned relative to each other to allow the fork end of the forklift to pass straight through.

[0041] Furthermore, the connecting support 4 includes a supporting base plate 401 horizontally arranged on the top of the fixed upper bracket 3 and a limiting side plate 402 vertically arranged on the side of the supporting base plate 401 away from the front and rear suspensions of the cab, that is, the side view of the connecting support 4 is in a horizontal L shape. After the connecting support 4 and the front and rear suspensions of the cab are connected, when the cab is in operation, the front and rear suspensions of the cab are placed on the supporting base plate 401, and the limiting side plates 402 are engaged with the sides of the front and rear suspensions of the cab away from each other to limit the cab as a whole and prevent the cab from falling during transportation. Furthermore, for some cabs with special front and rear suspension shapes, therefore, in one embodiment of the present application, a side of the supporting base plate 401 that contacts the front and rear suspensions of the cab is provided with a groove body that fits the shape of the front and rear suspensions of the cab to improve the connection stability.

[0042] For further information, see Figure 3An isolation piece 9 is arranged on the top of the connecting support 4. The isolation piece 9 is arranged on the surface of the connecting support 4, that is, the side where the supporting bottom plate 401 and the limiting side plate 402 are in contact with the front and rear suspensions of the cab. This can avoid direct contact between the cab and the connecting support 4, prevent shaking during transportation, and prevent the connecting support 4 from causing bumps and scratches on the front and rear suspensions of the cab. At the same time, the isolation piece 9 also plays an anti-slip role to prevent the cab from slipping during transportation. In one embodiment of the present application, the isolation piece 9 is made of rubber material. The rubber material has a high friction coefficient and a certain softness, and can perform limited isolation protection and anti-slip.

[0043] When using the cab support device in the present application, first place the fixed upper bracket 3 in the fixed lower bracket 2 at an appropriate position according to the size of the cab of different models, then adjust the height of the fixed upper bracket 3 and the connecting support 4 according to the height of the front and rear suspension of the cab, then after the first positioning hole 6 and the second positioning hole 8 overlap, pass the positioning pin 7 through the first positioning hole 6 and the second positioning hole 8, fix the height of the connecting support 4, and finally place the cab on the connecting support 4.

[0044] The cab support device in the present application can realize flexible regulation of the cab support device in the X-axis direction and the Y-axis direction through multiple groups of fixed lower brackets 2 arranged along the length direction of the support frame body 1, and multiple fixed lower brackets 2 in the same group arranged along the width direction of the support frame body 1, and can be suitable for the connection requirements of the length and width of cabs of different models and sizes. By setting the fixed upper bracket 3 in the fixed lower bracket 2 and using the height limit device in cooperation, the height of the single fixed upper bracket 3 in the single fixed lower bracket 2 can be adjusted to adapt to different front and rear suspension heights of the cab, so as to realize flexible regulation of the cab support device in the Z-axis direction. It has strong overall versatility and can meet the connection requirements of most existing cabs. It has a simple overall structure, low manufacturing cost, simple operation and can be reused, which is convenient for cab storage, placement and switching, and improves work efficiency.

[0045] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0046] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0047] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A cab support device suitable for different commercial vehicle models, characterized in that: include: A fixing assembly, the fixing assembly comprising a support frame (1) and a plurality of vertical hollow fixed lower brackets (2) arranged along the length direction and the width direction of the support frame (1), the fixed lower brackets (2) being provided with a height limiting device, and the support frame (1) being provided with a hoisting portion; An adjustment component, the adjustment component comprising a fixed upper bracket (3) having one end disposed in the fixed lower bracket (2) and capable of vertically moving along the fixed lower bracket (2), and a connecting support (4) for connecting to the front and rear suspensions of the cab being disposed on the top of the fixed upper bracket (3).

2. A cab support device suitable for different commercial vehicle models as claimed in claim 1, characterized in that: The support frame (1) comprises two support cross bars (101) arranged in parallel.

3. A cab support device suitable for different commercial vehicle models as claimed in claim 2, characterized in that: A plurality of connecting cross bars (102) are arranged between the two supporting cross bars (101) and are parallel to each other and have two ends respectively connected to the two supporting cross bars (101).

4. A cab support device suitable for different commercial vehicle models as claimed in claim 3, characterized in that: The bottom of the fixed lower bracket (2) is arranged on the connecting cross bar (102).

5. The cab support device suitable for different commercial vehicle models as claimed in claim 1, characterized in that: The height limiting device comprises a plurality of first positioning holes (6) longitudinally arranged on the fixed lower bracket (2) and a positioning pin (7) arranged in one of the first positioning holes (6).

6. A cab support device suitable for different commercial vehicle models as claimed in claim 5, characterized in that: A second positioning hole (8) is provided at the bottom of the fixed upper bracket (3).

7. A cab support device suitable for different commercial vehicle models as claimed in claim 6, characterized in that: The positioning pin (7) passes through the first positioning hole (6) and the second positioning hole (8).

8. The cab support device applicable to different commercial vehicle models as claimed in claim 2, characterized in that: The lifting part comprises lifting ears (501) arranged at both ends of the supporting cross bar (101) and a forklift ring (502) arranged on the rod body of the supporting cross bar (101).

9. The cab support device applicable to different commercial vehicle models as claimed in claim 1, characterized in that: The connecting support (4) comprises a supporting bottom plate (401) horizontally arranged on the top of the fixed upper bracket (3) and a limiting side plate (402) vertically arranged on the supporting bottom plate (401) away from the front and rear suspension sides of the cab.

10. The cab support device applicable to different commercial vehicle models as claimed in claim 1, characterized in that: An isolation piece (9) is provided on the top of the connection support (4).