Roadbed box support and crane

Abstract

The utility model discloses a roadbed box support which comprises a support body and a spare tire support, the support body is used for being installed on the tail portion of a vehicle frame, the spare tire support comprises a fixing portion used for containing a spare tire and two connecting portions arranged at the two ends of the fixing portion, the two connecting portions are movably connected with the support body, and the spare tire support is arranged on the support body. The spare tire bracket can move relative to the bracket body and is fixed at a preassembling position and a fixing position; when the spare tire bracket is in the pre-assembling position, the spare tire bracket is perpendicular to the ground, and a spare tire is prepared to be installed on the spare tire bracket; when the spare tire support is located at the fixing position, the spare tire support obliquely abuts against the support body, and a spare tire is fixed to the spare tire support. The utility model solves the problem that the spare tire and the roadbed box support cannot be assembled to the tail part of the frame at the same time, and improves the convenience of assembling and disassembling the spare tire. The utility model further discloses a crane.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a roadbed box support. Background Technology

[0002] Truck cranes are a common type of large construction machinery. They are characterized by their high mobility and rapid relocation, and are widely used in construction projects.

[0003] To cope with emergencies, such as Figure 1 As shown, cranes typically carry a spare tire when traveling, which is vertically mounted at the rear of the chassis using bolts and nuts. For easier relocation, it's also necessary for the crane to carry roadbed boxes; however, the roadbed box bracket is also mounted at the rear of the chassis, with the roadbed box placed above the overlapping plane of the rear chassis and the roadbed box bracket, thus occupying the original spare tire mounting position. Because both the spare tire and the roadbed box bracket are mounted at the rear of the chassis and interfere with each other, the entire machine cannot simultaneously mount both the spare tire and the roadbed box bracket. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a roadbed box bracket, which solves the problem that the spare tire and the roadbed box bracket cannot be assembled to the rear of the vehicle frame at the same time, and improves the convenience of loading and unloading the spare tire.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A roadbed box bracket includes a bracket body and a spare tire bracket. The bracket body is used to install on the rear of a vehicle frame. The spare tire bracket includes a fixing part for placing a spare tire and two connecting parts disposed at both ends of the fixing part. The two connecting parts are movably connected to the bracket body. The spare tire bracket can move relative to the bracket body and be fixed in a pre-installation position and a fixed position. In the pre-installation position, the spare tire bracket is perpendicular to the ground, ready to install the spare tire onto the spare tire bracket. In the fixed position, the spare tire bracket is tilted against the bracket body, and the spare tire is fixed onto the spare tire bracket.

[0007] Furthermore, the connecting part includes a fixed end and a movable end. The fixed end is connected to the bracket body via a first pin, and the movable end is connected to the bracket body via a second pin. When the spare tire bracket is rotating or in the pre-installed position, the connecting part is rotatably connected to the bracket body via the first pin, and the spare tire bracket can rotate around the first pin. When in the fixed position, the connecting part is fixedly connected to the bracket body via the first pin and the second pin.

[0008] Furthermore, the roadbed box bracket also includes at least one support member; in the pre-installed position, the first end of the support member is used to connect with the rear of the vehicle frame, and the second end of the support member is used to abut against the fixing part.

[0009] Furthermore, the support member is a support rod, the first end of which is provided with an internal thread, and the support rod is threadedly connected to the externally threaded rod at the rear of the frame through the internal thread; or, the first end of the support rod is provided with an external thread, and the support rod is threadedly connected to the internally threaded rod at the rear of the frame through the external thread.

[0010] Furthermore, the fixing part is provided with multiple fixing screws for installing the spare tire.

[0011] Furthermore, the fixing part is also provided with an L-shaped support rod for supporting the spare tire.

[0012] Furthermore, the spare tire bracket has an I-shaped structure; the fixing part is a horizontal plate, and the connecting part is a vertical plate disposed at both ends of the horizontal plate.

[0013] Furthermore, the bracket body includes two spaced-apart fixing plates, and one of the connecting parts is correspondingly installed on one of the fixing plates.

[0014] Furthermore, the fixing plate includes a beveled side, and the connecting part is correspondingly installed on the beveled side; when in the fixing position, the connecting part is parallel to the beveled side.

[0015] This utility model also provides a crane, including a rear section of the chassis and a roadbed box support as described above, wherein the support body is fixed to the rear section of the chassis.

[0016] The advantages of this utility model are as follows: By directly fixing the spare tire bracket to the bracket body, the problem of interference between the original spare tire and roadbed box bracket, which were both installed at the rear of the vehicle frame, is solved, allowing the crane to carry both the spare tire and the roadbed box bracket simultaneously. Furthermore, the spare tire bracket is movably installed on the bracket body. When the spare tire bracket is moved and fixed in the pre-installation position, the spare tire bracket is perpendicular to the ground, making it easier to install the spare tire onto the fixed part of the spare tire bracket with the assistance of a forklift, thus improving the convenience of installation. After the spare tire is installed, when the spare tire bracket is moved and fixed in the fixed position, the spare tire bracket is tilted against the bracket body, making the distance between the lower end of the spare tire and the ground greater, thereby improving the overall passability of the machine. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of existing technology;

[0019] Figure 2 This is a schematic diagram of the spare tire support structure;

[0020] Figure 3 yes Figure 2 Side view;

[0021] Figure 4 This is a schematic diagram of the roadbed box support in a fixed position according to an embodiment of the present invention;

[0022] Figure 5 yes Figure 4 A schematic diagram of the pre-installed position;

[0023] Figure 6 yes Figure 4 A diagram illustrating the pre-installation position when mounted on the rear of the vehicle frame;

[0024] Figure 7 yes Figure 6 A schematic diagram of the support rod in the middle;

[0025] Figure 8 yes Figure 6 A diagram showing a vehicle with a spare tire in a fixed position while in motion.

[0026] Figure 9 This is a schematic diagram of the roadbed box support with spare tire in driving state, which is another embodiment of this utility model.

[0027] In the diagram: 1. Bracket body; 11. Fixing plate; 111. Slanted side; 2. Spare tire bracket; 21. Fixing part; 211. Fixing screw; 212. L-shaped support rod; 22. Connecting part; 221. Fixed end; 222. Movable end; 223. First through hole; 3. First pin; 4. Second pin; 5. Support member; 6. Third pin; 7. Rear of the frame; 8. Spare tire. Detailed Implementation

[0028] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0032] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0033] like Figure 1 As shown, conventional vehicles typically carry a spare tire 8 during operation. The spare tire 8 is vertically mounted at the rear 7 of the vehicle frame using screws and nuts, and is installed and removed with the assistance of a forklift. Similarly, the roadbed box bracket is mounted at the rear 7 of the crane frame. This makes it difficult to simultaneously carry the spare tire 8 and the roadbed box bracket on the crane. This utility model provides a roadbed box bracket, as follows: Figures 2 to 8As shown, the device includes a bracket body 1 and a spare tire bracket 2. The bracket body 1 is used to install on the rear of the vehicle frame 7. The spare tire bracket 2 includes a fixing part 21 for placing a spare tire 8 and two connecting parts 22 disposed at both ends of the fixing part 21. The two connecting parts 22 are movably connected to the bracket body 1. The spare tire bracket 2 can move towards or away from the bracket body 1 and can be fixed in a pre-installation position and a fixed position. In the pre-installation position, the spare tire bracket 2 is perpendicular to the ground, ready to install the spare tire 8 onto the spare tire bracket 2. In the fixed position, the spare tire bracket 2 is tilted against the bracket body 1, and the spare tire 8 is fixed onto the spare tire bracket 2.

[0034] In this embodiment, the spare tire bracket 2 is directly fixed to the bracket body 1, which solves the problem of interference between the original spare tire 8 and the roadbed box bracket, which are both installed at the rear 7 of the frame. This allows the crane to carry both the spare tire 8 and the roadbed box bracket simultaneously. Furthermore, the spare tire bracket 2 is movably installed on the bracket body 1. When the spare tire bracket 2 is moved and fixed in the pre-installation position, the spare tire bracket 2 is perpendicular to the ground, making it easier to install the spare tire 8 onto the fixing part 21 of the spare tire bracket 2 with the assistance of a forklift, thus improving the ease of installation. After the spare tire 8 is installed, when the spare tire bracket 2 is moved and fixed in the fixed position, the fixing part 21 is tilted against the bracket body 1, making the lower end of the spare tire 8 further away from the ground, thereby improving the overall passability of the machine.

[0035] The bracket body 1 is equivalent to the original roadbed box bracket. By modifying the original roadbed box bracket, the spare tire bracket 2 is fixed to it. The installation of the spare tire bracket 2 is achieved without changing the original structure, which is simple and cost-effective. Of course, the bracket body 1 can also be regarded as other mounting bases to achieve the fixed installation of the spare tire bracket 2 in different situations.

[0036] Of course, such as Figure 9 As shown, the spare tire bracket 2 can also be welded to the bracket body 1, meaning that the spare tire bracket 2 cannot move relative to the bracket body 1. The spare tire bracket 2 is welded to the bracket body 1 at an angle, and the spare tire 8 can also be carried by the roadbed box bracket. However, the spare tire 8 cannot be loaded and unloaded vertically, which causes inconvenience in actual use.

[0037] As one implementation method, such as Figures 2 to 5 As shown, the connecting part 22 includes a fixed end 221 and a movable end 222. The fixed end 221 is connected to the bracket body 1 through a first pin 3, and the movable end 222 is connected to the bracket body 1 through a second pin 4. When the spare tire bracket 2 rotates or is in the pre-installed position, the connecting part 22 and the bracket body 1 are rotatably connected through the first pin 3, that is, the two second pins 4 of the movable end 222 are pulled out, so that the spare tire bracket 2 can rotate around the first pin 3. When in the fixed position, the connecting part 22 and the bracket body 1 are fixedly connected through the first pin 3 and the second pin 4.

[0038] Specifically, both the fixed end 221 and the movable end 222 of the connecting part 22 are provided with first through holes 223, and the bracket body 1 is provided with second through holes (not shown) corresponding to each first through hole 223. The first pin 3 passes through the first through hole 223 of the fixed end 221 and the second through hole on the bracket body 1 and is fixed with a pin. The second pin 4 passes through the first through hole 223 of the movable end 222 and the second through hole on the bracket body 1 and is fixed with a pin. When the second pin 4 is pulled out, the spare tire bracket 2 can rotate to the pre-installed position (e.g., Figure 5 As shown), this allows the spare tire bracket 2 to be perpendicular to the ground, preparing for the installation of the spare tire 8. A forklift can be used for assistance; installation is easy. After the spare tire 8 is installed, the spare tire bracket 2 is rotated to the fixed position (as shown). Figure 4 As shown), after installing the second pin 4, the spare tire bracket 2 is obliquely fixed to the bracket body 1 by four pins, ensuring good vehicle passability. Figures 2 to 4 In this configuration, the fixed end 221 of the connecting part 22 is located at the top, and the movable end 222 of the connecting part 22 is located at the bottom, making operation more convenient; of course, the fixed end 221 of the connecting part 22 can be located at the bottom, and the movable end 222 of the connecting part 22 can be located at the top.

[0039] Furthermore, in addition to installing one pin on each of the fixed end 221 and the movable end 222 of the connecting part 22, multiple second pins 4 can also be installed between the fixed end 221 and the movable end 222. The first pin 3 of the fixed end 221 of the connecting part 22 is always installed in the first through hole 223 and the second through hole to play a fixing role; the other second pins 4 are only installed in the first through hole 223 and the second through hole when in the fixed position; in addition to being fixed by a pin, each pin can also be used with a nut to lock the bracket body 1 and the spare tire bracket 2.

[0040] The connection method of the first pin 3 of the fixed end 221 can also be replaced by other rotatable connection structures, such as hinge connection; the connection method of the second pin 4 of the movable end 222 can be replaced by other connection structures, such as bolt connection, which serves to cooperate with the connection structure of the connection end to fix the spare tire bracket 2.

[0041] As one implementation method, such as Figure 6As shown, the roadbed box bracket also includes at least one support member 5. In the pre-installed position, the first end of the support member 5 is used to connect to the rear of the frame 7, and the second end of the support member 5 is used to abut against the fixing part 21, so that the spare tire bracket 2 can be fixed in the pre-installed position, restricting the degree of freedom of rotation of the spare tire bracket 2 towards the rear of the frame 7. At this time, the spare tire 8 can be easily loaded and unloaded with the assistance of a forklift. After the spare tire 8 is installed, the support member 5 is removed, and the spare tire bracket 2 can be rotated towards the frame to the fixed position. Two support members 5 can be provided, spaced apart along the length of the fixing part 21. Supported by two support members 5, the rotation of the spare tire bracket 2 towards the rear of the frame 7 can be more stably restricted.

[0042] As one implementation method, such as Figure 6 and Figure 7 As shown, the support member 5 is a support rod, the first end of which is provided with an internal thread. The support rod is threadedly connected to the externally threaded rod of the rear end of the frame 7 through the internal thread; or, the first end of the support rod is provided with an external thread, and the support rod is threadedly connected to the internally threaded rod of the rear end of the frame 7 through the external thread. Of course, the support member 5 can also be a support frame. In the pre-installation position, one end of the support frame abuts against the rear end of the frame 7, and the other end of the support frame abuts against the fixing part 21 of the spare tire bracket 2, thereby supporting and fixing the spare tire bracket 2 in the pre-installation position.

[0043] As one implementation method, such as Figure 2 and Figure 3 As shown, the fixing part 21 is provided with multiple fixing screws 211 for mounting the spare tire 8. Three fixing screws 211 can be provided, corresponding to the three through holes on the rim of the spare tire 8. After the fixing screws 211 pass through the through holes on the rim, they are connected to the external threads on the fixing screws 211 by nuts, thus securing the spare tire 8 with good stability. Of course, four or five fixing screws 211 can also be used, as long as they correspond to the through holes on the rim of the spare tire 8; this is not limited here.

[0044] As one implementation method, such as Figure 2 and Figure 3 As shown, the fixing part 21 is also provided with an L-shaped support rod 212 for supporting the spare tire 8. When the spare tire 8 is installed on the fixing part 21, the L-shaped support rod 212 passes through the hollow position on the wheel hub of the spare tire 8 and plays the role of supporting the spare tire 8. This prevents the spare tire 8 from slipping off the spare tire bracket 2 when the fixing screw 211 is not installed in place, which could cause a safety accident or damage to the spare tire 8, and improves the safety and reliability of the installation process.

[0045] As one implementation method, such as Figure 2As shown, the spare tire bracket 2 has an I-shaped structure; the fixing part 21 is a horizontal plate, which is made of two channel steels welded together, and the fixing screw 211 is welded to the channel steel to install the spare tire 8; the connecting part 22 is a vertical plate welded to both ends of the horizontal plate.

[0046] As one implementation method, such as Figures 2 to 4 As shown, the bracket body 1 includes two spaced-apart fixing plates 11, and a connecting part 22 is correspondingly installed on one fixing plate 11. The connecting part 22 of the spare tire bracket 2 has at least two first through holes 223, and the fixing plate 11 has a second through hole at the position corresponding to the first through hole 223. The first pin 3 or the second pin 4 passes through the first through hole 223 and the second through hole and is locked by a pin or nut.

[0047] As one implementation method, such as Figures 2 to 4 As shown, the fixing plate 11 includes a beveled side 111, and the connecting part 22 is correspondingly installed on the beveled side 111. When in the fixed position, the connecting part 22 is parallel to the beveled side 111. At this time, the spare tire bracket 2 is fixed to the bracket body 1 by four pins, the spare tire 8 is installed at an angle, and the overall machine has good passability. In this embodiment, the fixing plate 11 is provided with a beveled side 111. When the spare tire 8 is installed at an angle, both sides of the spare tire 8 can protrude beyond the beveled side 111 of the fixing plate 11. When the fixing plate 11 is not provided with a beveled side 111, space needs to be reserved between the two fixing plates 11 to accommodate the spare tire 8, which greatly limits the size of the device and has poor versatility.

[0048] This utility model also provides a crane, such as Figure 6 and Figure 8 As shown, the system includes a rear section 7 of the vehicle frame and a roadbed box bracket as described above, with the bracket body 1 fixed to the rear section 7 of the vehicle frame. The fixing plate 11 of the bracket body 1 can be optionally fixed to the rear section 7 of the vehicle frame via a third pin 6 or bolts (not shown). The roadbed box bracket can also be installed on other construction machinery, or the spare tire bracket 2 can be directly installed on other construction machinery.

[0049] The installation process of the spare tire 8 of this utility model:

[0050] like Figure 5 and Figure 6 As shown, when preparing to install the spare tire 8, the spare tire bracket 2 is perpendicular to the ground. To fix the spare tire bracket 2 and prevent it from rotating when installing the spare tire 8, the spare tire bracket 2 is lifted up by two support rods (support members 5). One end of the support rod with internal threads is connected to the threaded rod 7 at the rear of the frame, and the other end presses against the spare tire bracket 2, restricting the spare tire bracket 2's degree of freedom of rotation towards the frame. At this time, it is convenient to load and unload the spare tire 8 with the assistance of a forklift.

[0051] like Figure 4 and Figure 8As shown, after the spare tire 8 is installed vertically, the support rod is removed, and the spare tire bracket 2 is rotated to a fixed position with the two pins (first pin 3) above it as the rotation center. The two pins (second pin 4) below the spare tire bracket 2 are then installed. At this time, the spare tire bracket 2 is fixed to the bracket body 1 (roadbed box bracket) by four pins. The spare tire 8 is installed at an angle, and the whole machine has good passability.

[0052] The beneficial effects of this utility model are:

[0053] 1. In the prior art, because the spare tire 8 and the roadbed box bracket are both installed at the rear 7 of the vehicle frame, they interfere with each other, and the whole machine cannot be equipped with the spare tire 8 and the roadbed box bracket at the same time. In this utility model, the spare tire bracket 2 is installed on the roadbed box bracket, so that the spare tire 8 and the roadbed box bracket can be carried at the same time.

[0054] 2. The spare tire bracket 2 is connected to the roadbed box bracket by four pins. The two lower pins can be removed to make the spare tire bracket 2 perpendicular to the ground. The rotational freedom of the spare tire bracket 2 is restricted by the support rod. The spare tire 8 can be installed and removed vertically, which solves the problem that users have difficulty installing the spare tire 8 at an angle.

[0055] 3. After the spare tire 8 is vertically installed on the spare tire bracket 2, remove the support rod. Using the two pins (first pin 3) on the top of the spare tire bracket 2 as the rotation center, install the two pins (second pin 4) on the bottom of the spare tire bracket 2. At this time, the spare tire bracket 2 is fixed on the roadbed box bracket by the four pins. The spare tire 8 is installed at an angle, which makes the whole machine pass through well.

[0056] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content without departing from the scope of the technical solution of the present utility model. These are equivalent embodiments with equivalent changes. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A roadbed box support, characterized in that, The system includes a bracket body (1) and a spare tire bracket (2). The bracket body (1) is used to install on the rear of the vehicle frame (7). The spare tire bracket (2) includes a fixing part (21) for placing a spare tire (8) and two connecting parts (22) provided at both ends of the fixing part (21). The two connecting parts (22) are movably connected to the bracket body (1). The spare tire bracket (2) can move relative to the bracket body (1) and be fixed in a pre-installation position and a fixed position. In the pre-installation position, the spare tire bracket (2) is perpendicular to the ground, ready to install the spare tire (8) onto the spare tire bracket (2). In the fixed position, the spare tire bracket (2) is tilted against the bracket body (1), and the spare tire (8) is fixed on the spare tire bracket (2).

2. The roadbed box support as described in claim 1, characterized in that, The connecting part (22) includes a fixed end (221) and a movable end (222). The fixed end (221) is connected to the bracket body (1) through a first pin (3), and the movable end (222) is connected to the bracket body (1) through a second pin (4). When the spare tire bracket (2) is rotating or in the pre-installed position, the connecting part (22) and the bracket body (1) are rotatably connected through the first pin (3), and the spare tire bracket (2) can rotate around the first pin (3). When in the fixed position, the connecting part (22) and the bracket body (1) are fixedly connected through the first pin (3) and the second pin (4).

3. The roadbed box support as described in claim 1, characterized in that, The roadbed box bracket also includes at least one support member (5); in the pre-installed position, the first end of the support member (5) is used to connect with the rear of the vehicle frame (7), and the second end of the support member (5) is used to abut against the fixing part (21).

4. The roadbed box support as described in claim 3, characterized in that, The support member (5) is a support rod. The first end of the support rod is provided with an internal thread. The support rod is threaded to the external thread rod of the rear end of the frame (7) through the internal thread; or, the first end of the support rod is provided with an external thread. The support rod is threaded to the internal thread rod of the rear end of the frame (7) through the external thread.

5. The roadbed box support as described in claim 1, characterized in that, The fixing part (21) is provided with a plurality of fixing screws (211) for installing the spare tire (8).

6. The roadbed box support as described in claim 5, characterized in that, The fixing part (21) is also provided with an L-shaped support rod (212) for supporting the spare tire (8).

7. The roadbed box support as described in claim 1, characterized in that, The spare tire bracket (2) has an I-shaped structure; the fixing part (21) is a horizontal plate, and the connecting part (22) is a vertical plate disposed at both ends of the horizontal plate.

8. The roadbed box support as described in claim 1, characterized in that, The bracket body (1) includes two spaced-apart fixing plates (11), and one of the connecting parts (22) is installed on one of the fixing plates (11).

9. The roadbed box support as described in claim 8, characterized in that, The fixing plate (11) includes a sloping side (111), and the connecting part (22) is installed on the sloping side (111); when in the fixed position, the connecting part (22) is parallel to the sloping side (111).

10. A crane, characterized in that, Includes a rear section of the vehicle frame (7) and a roadbed box bracket as described in any one of claims 1-9, wherein the bracket body (1) is fixed to the rear section of the vehicle frame (7).

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