Spare tire turnover device and fire fighting truck

Abstract

The utility model provides a spare tire turnover device and a fire fighting truck, and relates to the field of fire fighting equipment. The tire turnover device comprises a fixing assembly, a connecting rod assembly, a spare tire support and a linear driving assembly, the linear driving assembly is hinged to the connecting rod assembly and the fixing assembly or the vehicle body, and the linear driving assembly is used for driving the connecting rod assembly to be switched between the retracting state and the unfolding state. The connecting rod assembly is driven by the linear driving assembly to be switched between the retracting state and the unfolding state. In the retracting state, the spare tire is located at the storage position and is in the horizontal state, and the space occupied by the spare tire in the height direction can be reduced; in the unfolding state, the spare tire is located at the assembling and disassembling position and is in the vertical state, and an operator can conveniently disassemble the spare tire from the spare tire support. The connecting rod assembly is driven to move through the linear driving assembly, other professional equipment is not needed in the operation process, the large-weight spare tire can be conveniently taken and used, the spare tire can be taken and used by one person, and the labor use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of fire-fighting equipment, in particular to a spare tire turnover device and a fire truck. Background Art

[0002] During the process of rescue and disaster relief, flat tires often occur to fire trucks. After a flat tire, it is necessary to immediately replace the spare tire to continue the rescue work. However, due to the limited on-vehicle space of fire trucks, most of the existing spare tires of fire trucks are installed at positions such as the top of the vehicle or under the girder. When retrieving the spare tire, it is necessary to manually remove the spare tire fixing bracket and then use equipment such as a crane to take out the spare tire. The disassembly operation is cumbersome. In scenarios without professional equipment, it is inconvenient to retrieve the spare tire. Content of the Utility Model

[0003] The utility model provides a spare tire turnover device for solving the problems of cumbersome disassembly operation and inconvenient retrieval of the existing spare tire fixing method.

[0004] The utility model provides a spare tire turnover device, including:

[0005] A fixing component for connecting with the vehicle body;

[0006] A connecting rod component hinged with the fixing component;

[0007] A spare tire bracket connected with the connecting rod component and the spare tire;

[0008] A linear drive component hinged with the connecting rod component and the fixing component or the vehicle body. The linear drive component is used to drive the connecting rod component to switch between a retracted state and an extended state; in the retracted state, the spare tire is located at a storage position and is in a horizontal state; in the extended state, the spare tire is located at a loading and unloading position and is in a vertical state.

[0009] According to a spare tire turnover device provided by the utility model, the fixing component includes two fixing brackets, and the two fixing brackets are arranged at intervals on one side of the vehicle body.

[0010] According to a spare tire turnover device provided by the utility model, the connecting rod component includes two connecting rod mechanisms, and the two connecting rod mechanisms are respectively and correspondingly hinged with the two fixing brackets. The spare tire bracket is located between the two connecting rod mechanisms. One end of the spare tire bracket is connected with one connecting rod mechanism, and the other end of the spare tire bracket is connected with the other connecting rod mechanism.

[0011] According to a spare tire flipping device provided by the present utility model, the linkage mechanism includes a first link, a second link, and a third link. One end of the first link is hinged to the lower part of the corresponding fixed bracket, the other end of the first link is hinged to the second link, the linear drive assembly is hinged to the first link, one end of the second link is connected to the spare tire bracket, the other end of the second link is hinged to one end of the third link, and the other end of the third link is hinged to the upper part of the corresponding fixed bracket.

[0012] According to a spare tire flipping device provided by the present utility model, the fixed bracket includes a first fixed bracket and a second fixed bracket. The first fixed bracket is vertically fixed to one side of the vehicle body, and one end of the second fixed bracket is connected to the upper end of the first fixed bracket; one end of the first link is hinged to the lower end of the corresponding first fixed bracket, and the other end of the third link is hinged to the other end of the corresponding second fixed bracket.

[0013] According to a spare tire flipping device provided by the present utility model, the linear drive assembly includes two linear drive members. One end of the linear drive member is hinged to the corresponding first link, and the other end of the linear drive member is hinged to the corresponding first fixed bracket.

[0014] According to a spare tire flipping device provided by the present utility model, a first connection ear is provided at the lower end of the first fixed bracket, a second connection ear is provided at the upper end of the first fixed bracket, one end of the first link is hinged to the corresponding first connection ear, and the other end of the linear drive member is hinged to the corresponding second connection ear.

[0015] According to a spare tire flipping device provided by the present utility model, an angle sensor is provided on the spare tire bracket. The angle sensor is used to detect the angle of the spare tire bracket, and the angle sensor is electrically connected to the linear drive assembly; when the angle sensor detects that the spare tire bracket is in a vertical state, the angle sensor controls the linear drive assembly to stop working.

[0016] According to a spare tire flipping device provided by the present utility model, a mounting plate is provided on the spare tire bracket, and the spare tire is connected to the mounting plate through a plurality of fasteners.

[0017] The present utility model further provides a fire truck, including a vehicle body and the spare tire flipping device according to any one of the above, and the spare tire flipping device is arranged on the vehicle body.

[0018] The spare tire flipping device provided by the present utility model drives the link assembly to switch between the retracted state and the deployed state through a linear drive assembly; in the retracted state, the spare tire is located at the storage position and is in a horizontal state, which can reduce the space occupied by the spare tire in the height direction; in the deployed state, the spare tire is located at the loading and unloading position and is in a vertical state, which facilitates the operator to remove the spare tire from the spare tire bracket. The spare tire flipping device of the present utility model drives the link assembly to move through the linear drive assembly. The operation process does not need to rely on other professional equipment, can realize the convenient access of heavy spare tires, and the operation of taking the spare tire can be carried out by a single person, reducing the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic three-dimensional structure diagram of the spare tire flipping device provided by the present utility model.

[0021] Figure 2 is a schematic side view structure diagram of the spare tire flipping device when the link assembly is in the retracted state provided by the present utility model.

[0022] Figure 3 is a schematic side view structure diagram of the spare tire flipping device when the link assembly is in the deployed state provided by the present utility model.

[0023] Figure 4 is a schematic side view structure diagram of the fire truck when the link assembly is in the retracted state provided by the present utility model.

[0024] Figure 5 is a schematic side view structure diagram of the fire truck when the link assembly is in the deployed state provided by the present utility model.

[0025] REFERENCE NUMERALS:

[0026] 100, fixed assembly; 110, fixed bracket; 111, first fixed frame; 112, second fixed frame; 113, first connecting ear; 114, second connecting ear; 115, third connecting ear; 200, link assembly; 210, link mechanism; 211, first link; 212, second link; 213, third link; 300, spare tire bracket; 310, mounting plate; 400, linear drive assembly; 410, linear drive member; 500, spare tire; 600, vehicle body; 610, spare tire storage bin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0028] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model 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 thus should not be construed as a limitation on the embodiments of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0030] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0031] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0032] The following combines Figures 1 - 5 to describe the specific structure and working principle of the spare tire flipping device of the present utility model.

[0033] Figure 1 The three-dimensional structure schematic diagram of the spare tire flipping device provided by the present utility model is exemplified, as Figure 1 shown, the spare tire flipping device includes a fixed component 100, a connecting rod component 200, a spare tire bracket 300, and a linear drive component 400. The fixed component 100 is used to connect with the vehicle body 600. The connecting rod component 200 is hinged to the fixed component 100. The spare tire bracket 300 is connected to the connecting rod component 200 and the spare tire 500. The linear drive component 400 is hinged to the connecting rod component 200 and the fixed component 100 or the vehicle body 600. The linear drive component 400 is used to drive the connecting rod component 200 to switch between the retracted state and the deployed state. In the retracted state, the spare tire 500 is located at the storage position and is in a horizontal state. In the deployed state, the spare tire 500 is located at the loading and unloading position and is in a vertical state.

[0034] For the spare tire flipping device provided by the present utility model, the linear drive component 400 drives the connecting rod component 200 to switch between the retracted state and the deployed state. In the retracted state, the spare tire 500 is located at the storage position and is in a horizontal state, which can reduce the space occupied by the spare tire 500 in the height direction. In the deployed state, the spare tire 500 is located at the loading and unloading position and is in a vertical state, which can facilitate the operator to remove the spare tire 500 from the spare tire bracket 300. The spare tire flipping device of the present utility model drives the connecting rod component 200 to move through the linear drive component 400. The operation process does not need to rely on other professional equipment, can realize the convenient access of the heavy spare tire 500, and the operation of taking the spare tire 500 can be carried out by a single person during the process, reducing the labor cost.

[0035] It should be noted here that Figure 4 the side view structure schematic diagram of the fire truck when the connecting rod component provided by the present utility model is in the retracted state is exemplified, Figure 5Illustrates a schematic side view structure of a fire truck when the connecting rod assembly provided by the present utility model is in the deployed state, as Figure 4 and Figure 5 shown, a spare tire storage bin 610 is provided on one side of the vehicle body 600. The spare tire storage bin 610 is provided with an opening, and a cover body (not shown) is provided at the opening. The cover body is hinged to the vehicle body 600 to facilitate opening and closing of the cover body. The above-mentioned spare tire 500 being in the storage position means that the spare tire 500 is inside the spare tire storage bin 610, and the spare tire 500 being in the loading and unloading position means that the spare tire 500 is at the opening or the spare tire 500 is outside the spare tire storage bin. Of course, for the case where the spare tire storage bin 610 is not provided, the storage position and the loading and unloading position can also refer to other positions.

[0036] In an embodiment of the present utility model, Figure 2 Illustrates a schematic side view structure of the spare tire flipping device when the connecting rod assembly provided by the present utility model is in the retracted state, Figure 3 Illustrates a schematic side view structure of the spare tire flipping device when the connecting rod assembly provided by the present utility model is in the deployed state, as Figure 2 and Figure 3 shown, in the retracted state, the spare tire 500 is in a horizontal state. Using the horizontal state to store the spare tire 500 can reduce the space occupied by the spare tire 500 in the up and down directions and will not affect the passing performance of the vehicle. In the deployed state, the spare tire 500 is in a vertical state, so that the lower part of the spare tire 500 is closer to the ground, which is convenient for the installation and removal of the spare tire 500. Preferably, in the deployed state, the bottom of the spare tire 500 is in contact with the ground surface, so as to ensure that the spare tire 500 will not tilt after being removed, improving safety.

[0037] In an embodiment of the present utility model, the fixing assembly 100 is used to mount the spare tire flipping device on the vehicle body 600 and provides an installation basis for the connecting rod assembly 200. In this embodiment, the fixing assembly 100 includes two fixing brackets 110. The two fixing brackets 110 are arranged at intervals on one side of the vehicle body 600, and the two fixing brackets 110 are symmetrically arranged. As Figure 3 shown, the distance between the two fixing brackets 110 is greater than the diameter of the spare tire 500 to provide space for the movement of the connecting rod assembly 200. A receiving space is formed between the two fixing brackets 110 so that the spare tire 500 can enter the left side of the fixing assembly 100, making full use of the space on the left side of the fixing assembly 100. In this way, when the connecting rod assembly 200 is in the retracted state, the length of the connecting rod assembly 200 in the horizontal direction is shorter and will not occupy a large space.

[0038] It should be noted here that the specific structural form of the fixing assembly 100 is not limited to using two independent fixing brackets 110, and it is also possible to only provide one fixing bracket 110 connected to two link mechanisms 210.

[0039] In an embodiment of the present utility model, as Figure 2 and Figure 3 shown, the connecting rod assembly 200 includes two connecting rod mechanisms 210. The two connecting rod mechanisms 210 are respectively and hingedly connected to two fixed brackets 110. The distance between the two connecting rod mechanisms 210 is greater than the diameter of the spare tire 500. The spare tire bracket 300 is located between the two connecting rod mechanisms 210. One end of the spare tire bracket 300 is connected to one connecting rod mechanism 210, and the other end of the spare tire bracket 300 is connected to the other connecting rod mechanism 210. By using the linear drive assembly 400 to cooperate with the two connecting rod mechanisms 210 to change the state and position of the spare tire 500, it has the advantages of simple structure and low production cost. It can be reasonably arranged on one side of the vehicle body 600 according to the actual needs of the fire truck, solving the problems of inconvenient operation and limited space of the spare tire 500.

[0040] In an embodiment of the present utility model, as Figure 2 and Figure 3 shown, the connecting rod mechanism 210 includes a first connecting rod 211, a second connecting rod 212 and a third connecting rod 213. One end of the first connecting rod 211 is hingedly connected to the lower part of the corresponding fixed bracket 110 through a pin shaft, and the other end of the first connecting rod 211 is hingedly connected to the second connecting rod 212 through a pin shaft. Specifically, the hinge point of the other end of the first connecting rod 211 and the second connecting rod 212 is located on the side of the second connecting rod 212 close to the fixed bracket 110. Preferably, the width of the middle part of the second connecting rod 212 is greater than that of both ends, so as to facilitate the setting of connection holes for hinged connection with the first connecting rod 211 and ensure that the second connecting rod 212 has sufficient structural strength.

[0041] The linear drive assembly 400 is hingedly connected to the first connecting rod 211 through a pin shaft, and one end of the second connecting rod 212 is connected to the spare tire bracket 300. Specifically, the spare tire bracket 300 is located between the two second connecting rods 212. One end of the spare tire bracket 300 is connected to one end of one second connecting rod 212 through a bolt, and the other end of the spare tire bracket 300 is connected to one end of the other second connecting rod 212 through a bolt. The other end of the second connecting rod 212 is hingedly connected to one end of the third connecting rod 213 through a pin shaft, and the other end of the third connecting rod 213 is hingedly connected to the upper part of the corresponding fixed bracket 110 through a pin shaft.

[0042] In an embodiment of the present utility model, as Figure 2 and Figure 3 shown, the fixed bracket 110 includes a first fixed bracket 111 and a second fixed bracket 112. The first fixed bracket 111 is vertically fixed on one side of the vehicle body 600, and the first fixed bracket 111 is connected to the vehicle body 600 through bolts. Of course, the first fixed bracket 111 can also be connected to the vehicle body 600 by other connection methods.

[0043] One end of the second fixing frame 112 is connected to the upper end of the first fixing frame 111. Specifically, the second fixing frame 112 is horizontally arranged, and one end of the second fixing frame 112 is welded to the upper end of the first fixing frame 111; of course, the second fixing frame 112 can also be integrally formed with the first fixing frame 111. Preferably, a reinforcing rib is provided at the connection between the second fixing frame 112 and the first fixing frame 111 to improve the connection strength between the second fixing frame 112 and the first fixing frame 111. One end of the first connecting rod 211 is hinged to the lower end of the corresponding first fixing frame 111 through a pin shaft, and the other end of the third connecting rod 213 is hinged to the other end of the corresponding second fixing frame 112 through a pin shaft.

[0044] In an embodiment of the present invention, as Figure 2 and Figure 3 shown, the linear drive assembly 400 includes two linear drive members 410. One end of the linear drive member 410 is hinged to the corresponding first connecting rod 211, and the other end of the linear drive member 410 is hinged to the corresponding first fixing frame 111. Specifically, the linear drive member 410 is an oil cylinder. The telescopic rod of the oil cylinder is hinged to the corresponding first connecting rod 211. The hinge point between the telescopic rod of the oil cylinder and the first connecting rod 211 is located on the side of the first connecting rod 211 close to the first fixing frame 111. The cylinder block of the oil cylinder is hinged to the upper end of the corresponding first fixing frame 111 through a pin shaft. Of course, the specific type of the first linear drive member 410 is not limited thereto, and it can also be an electric push rod or other linear drive mechanisms.

[0045] In an embodiment of the present invention, as Figure 2 and Figure 3 shown, a first connecting ear 113 is provided at the lower end of the first fixing frame 111. One end of the first connecting rod 211 is hinged to the corresponding first connecting ear 113. The first connecting ear 113 is welded to the first fixing frame 111 or integrally formed therewith. The provision of the first connecting ear 113 not only facilitates the installation of the first connecting rod 211 but also eliminates the need to drill holes in the first fixing frame 111, thereby improving the structural strength of the first fixing frame 111.

[0046] A second connecting ear 114 is provided at the upper end of the first fixing frame 111. The other end of the linear drive member 410 is hinged to the corresponding second connecting ear 114. Specifically, the second connecting ear 114 is hinged to the cylinder block of the oil cylinder through a pin shaft. The second connecting ear 114 is welded to the first fixing frame 111 or integrally formed therewith. The provision of the second connecting ear 114 not only facilitates the installation of the linear drive member 410 but also eliminates the need to drill holes in the first fixing frame 111, thereby improving the structural strength of the first fixing frame 111.

[0047] In an embodiment of the present utility model, the first connecting rod 211 is provided with a third connecting ear 115. Preferably, the third connecting ear 115 is located on the side of the first connecting rod 211 close to the first fixing frame 111. The third connecting ear 115 is connected to the first connecting rod 211 by welding or integrally formed. The telescopic rod of the oil cylinder is hinged to the third connecting ear 115 through a pin shaft.

[0048] In an embodiment of the present utility model, an angle sensor (not shown) is provided on the spare tire bracket 300. The angle sensor is used to detect the angle of the spare tire bracket 300. The state of the spare tire bracket 300 is consistent with the state of the spare tire 500. Therefore, the angle of the spare tire 500 can be obtained by detecting the angle of the spare tire bracket 300. One angle sensor can be provided, or multiple angle sensors can be provided. The multiple angle sensors are arranged at different positions of the spare tire bracket 300 to improve the detection accuracy. The angle sensor is electrically connected to the linear drive assembly 400. When the angle sensor detects that the spare tire bracket 300 is in the vertical state, the angle sensor controls the linear drive assembly 400 to stop working.

[0049] When the link assembly 200 is in the retracted state, the angle sensor detects that the spare tire bracket 300 is in the horizontal state, and at this time the spare tire 500 is also in the horizontal state. When the link assembly 200 is in the deployed state, the angle sensor detects that the spare tire bracket 300 is in the vertical state, and at this time the spare tire 500 is also in the vertical state. The angle sensor controls the linear drive assembly 400 to stop working, and then the spare tire 500 can be installed or disassembled.

[0050] In an embodiment of the present utility model, a mounting plate 310 is provided on the spare tire bracket 300. The mounting plate 310 is a circular or rectangular plate body. The mounting plate 310 is connected to the spare tire bracket 300 by bolts. By providing the mounting plate 310 on the spare tire bracket 300, the contact surface and force application points between the spare tire 500 and the spare tire bracket 300 can be increased, and the stability of the spare tire 500 is improved. The spare tire 500 is connected to the mounting plate 310 through a plurality of fasteners to facilitate the installation and disassembly of the spare tire 500.

[0051] Working principle of the spare tire flipping device:

[0052] When the oil cylinder shortens, the first connecting rod 211, the second connecting rod 212 and the third connecting rod 213 are in a folded state, so that the connecting rod assembly 200 is in a retracted state. At this time, the spare tire 500 is in a horizontal state. The spare tire 500 is stored in the horizontal state, which can reduce the space occupied by the spare tire 500 in the up and down directions and will not affect the passing performance of the vehicle. When the oil cylinder extends, the first connecting rod 211, the second connecting rod 212 and the third connecting rod 213 unfold, and the connecting rod assembly 200 is in an unfolded state. At this time, the height of the spare tire bracket 300 decreases, and the first connecting rod 211 is converted from an inclined state to a horizontal state, so that the spare tire 500 is in a vertical state to facilitate the installation and removal of the spare tire 500.

[0053] The present utility model further provides a fire truck, which includes a vehicle body 600 and the spare tire flipping device described in any one of the above embodiments, and the spare tire flipping device is arranged on the vehicle body 600.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A spare tire flipping device, characterized in that, Comprising: A fixed component (100) for connecting to a vehicle body; A connecting rod component (200) hinged to the fixed component (100); A spare tire bracket (300) connected to the connecting rod component and a spare tire (500); A linear drive component (400) hinged to the connecting rod component (200) and the fixed component (100) or the vehicle body, the linear drive component (400) being configured to drive the connecting rod component (200) to switch between a retracted state and an extended state; in the retracted state, the spare tire (500) is located at a storage position and is in a horizontal state; in the extended state, the spare tire (500) is located at a loading and unloading position and is in a vertical state; The fixed component (100) includes two fixed brackets (110), and the two fixed brackets (110) are arranged at intervals on one side of the vehicle body; The connecting rod component (200) includes two connecting rod mechanisms (210), the two connecting rod mechanisms (210) are respectively and correspondingly hinged to the two fixed brackets (110), the spare tire bracket (300) is located between the two connecting rod mechanisms (210), one end of the spare tire bracket (300) is connected to one connecting rod mechanism (210), and the other end of the spare tire bracket (300) is connected to the other connecting rod mechanism (210); The connecting rod mechanism (210) includes a first connecting rod (211), a second connecting rod (212) and a third connecting rod (213), one end of the first connecting rod (211) is hinged to the lower part of the corresponding fixed bracket (110), the other end of the first connecting rod (211) is hinged to the second connecting rod (212), the linear drive component (400) is hinged to the first connecting rod (211), one end of the second connecting rod (212) is connected to the spare tire bracket (300), the other end of the second connecting rod (212) is hinged to one end of the third connecting rod (213), and the other end of the third connecting rod (213) is hinged to the upper part of the corresponding fixed bracket (110); The fixed bracket (110) includes a first fixed frame (111) and a second fixed frame (112), the first fixed frame (111) is vertically fixed on one side of the vehicle body, and one end of the second fixed frame (112) is connected to the upper end of the first fixed frame (111); one end of the first connecting rod (211) is hinged to the lower end of the corresponding first fixed frame (111), and the other end of the third connecting rod (213) is hinged to the other end of the corresponding second fixed frame (112); The linear drive component (400) includes two linear drive members (410), one end of the linear drive member (410) is hinged to the corresponding first connecting rod (211), and the other end of the linear drive member (410) is hinged to the corresponding first fixed frame (111).

2. The spare tire flipping device according to claim 1, wherein A first connecting ear (113) is provided at the lower end of the first fixing bracket (111), and a second connecting ear (114) is provided at the upper end of the first fixing bracket (111). One end of the first connecting rod (211) is hinged to the corresponding first connecting ear (113), and the other end of the linear driving member (410) is hinged to the corresponding second connecting ear (114).

3. The spare tire flipping device according to claim 1 or 2, characterized in that, An angle sensor is provided on the spare tire bracket (300). The angle sensor is used to detect the angle of the spare tire bracket (300), and the angle sensor is electrically connected to the linear driving assembly (400); when the angle sensor detects that the spare tire bracket (300) is in a vertical state, the angle sensor controls the linear driving assembly (400) to stop working.

4. The spare tire flipping device according to claim 1 or 2, characterized in that, An installation plate (310) is provided on the spare tire bracket (300), and the spare tire (500) is connected to the installation plate (310) through a plurality of fasteners.

5. A fire truck, characterized in that, It includes a vehicle body and the spare tire flipping device according to any one of claims 1 to 4, and the spare tire flipping device is arranged on the vehicle body.

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