Construction machinery transport vehicle fixing device
By using rectangular metal wedges and adjustable side blocking devices in the fixing device of construction machinery transport vehicles, the problem of poor adaptability of side fixing structures is solved, achieving precise positioning and improved stability for different tires, and reducing replacement costs and safety hazards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CANGZHOU SHANGDING TRANSPORTATION CO LTD
- Filing Date
- 2025-09-27
- Publication Date
- 2026-08-04
AI Technical Summary
Existing fixing devices for construction machinery transport vehicles have poor adaptability in terms of side fixing structures, and cannot effectively adapt to tires of different widths, leading to fixing failure or increased adaptation costs.
Using cuboid metal wedges A and B, combined with an adjustable side blocking device, and through threaded adjustment and rigid blocking design, it achieves precise positioning of the left and right sides of the tires of engineering machinery, adapting to the fixing requirements of tires of different sizes, and ensuring stability and flexibility through metal blocking plates and threaded connection structure.
It achieves precise positioning of tires of different sizes, reduces the adaptation cost of replacement devices, improves stability and safety during transportation, and avoids safety hazards caused by tire lateral slippage.
Smart Images
Figure CN224589010U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of construction machinery transportation, specifically relating to a fixing device for construction machinery transportation vehicles. Background Technology
[0002] Construction machinery transport vehicle fixing devices are specialized structures installed on flatbed trailers and special construction machinery transport vehicles to stably fix construction machinery such as excavators and loaders to the flatbed of the vehicle. Their core function is to prevent the construction machinery from shifting or sliding during the transportation process (when turning, braking, or bumping) through the synergistic effect of "front and rear limiters + lateral blocking", thus ensuring transportation safety and equipment integrity. They are the key link between construction machinery and transport carriers and directly affect the efficiency of construction transportation and road traffic safety. While current mainstream fixing devices can achieve basic forward and backward positioning of construction machinery through metal wedges, chains, etc., there are still significant shortcomings in the lateral fixing aspect, making it difficult to meet the stable fixing requirements under different working conditions. Specifically, existing lateral fixing structures are mostly non-adjustable metal blocks or rubber pads with a fixed distance between them and the tire sidewall. When transporting construction machinery tires of different widths, either the distance between the block and the narrow tire is too large to form an effective barrier, or the block interferes with the wide tire, preventing the tire from parking properly. Different specifications of fixing devices need to be replaced, increasing equipment adaptation costs and operation time. Moreover, some devices' lateral blocks are simply fixed to the plate with bolts without reinforcement. When the transport vehicle makes a sharp turn or brakes suddenly, the lateral force generated by the construction machinery tires can easily cause the block to tilt, deform, or even loosen the bolts, leading to lateral blocking failure, tire sideslip, and ultimately, overall displacement of the construction machinery, posing a safety hazard. Furthermore, the blocks are mostly single rod-shaped or plate-shaped structures with a small stress area, making them prone to damage due to localized stress concentration. Utility Model Content
[0003] The purpose of this utility model is to provide a fixing device for construction machinery transport vehicles, so as to solve the problems mentioned in the background art, which are that the existing side fixing structures have fixed spacing, poor adaptability, and when transporting tires of different widths, either the spacing is too large to effectively block them, or the spacing is too small to interfere with the wide tires, requiring the replacement of different specifications of the device, which increases the adaptation cost and operation time.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for a construction machinery transport vehicle, comprising a cuboid metal wedge A and cuboid metal wedge B symmetrically arranged on the rear side of the cuboid metal wedge A. The cuboid metal wedge A and cuboid metal wedge B have the same shape, size, and structural composition. The outer wall of the rear end of the cuboid metal wedge A and the outer wall of the front end of the cuboid metal wedge B are both set with bevels. The cuboid metal wedge A and cuboid metal wedge B are both fixed on the flatbed of the transport vehicle. The cuboid metal wedge A and cuboid metal wedge B are respectively located at the bottom front end and bottom rear end of the construction machinery tire parked on the flatbed of the transport vehicle, and the bevel direction of the cuboid metal wedge A and cuboid metal wedge B both face the construction machinery tire. The front end of the cuboid metal wedge A and the rear end of the cuboid metal wedge B are both provided with adjustable side blocking devices.
[0005] Preferably, the adjustable side blocking device at the front end of the cuboid metal wedge A includes a strip-shaped metal connecting block and an adjusting screw hole. The strip-shaped metal connecting block is welded and fixed to the outer wall of the front end of the cuboid metal wedge A. An adjusting screw hole is provided laterally inside the center of the strip-shaped metal connecting block, and the right end of the adjusting screw hole is open.
[0006] Preferably, the adjustable side blocking device further includes a thickened connecting screw, a strip-shaped metal blocking plate, and a screw through hole. The strip-shaped metal blocking plate is located longitudinally on the right side of the strip-shaped metal connecting block and the cuboid metal wedge block A. The strip-shaped metal blocking plate has a screw through hole near the center of the front end. The thickened connecting screw is inserted into the screw through hole, and the left end of the thickened connecting screw is threaded into the adjusting screw hole.
[0007] Preferably, the thickened connecting screw, the strip-shaped metal connecting block, and the cuboid metal wedge A have equal lateral lengths. The thickened connecting screw can rotate clockwise and counterclockwise in the screw hole. The clockwise and counterclockwise rotation of the thickened connecting screw can move left and right inside the adjusting screw hole through the thread action.
[0008] Preferably, the adjustable side blocking device further includes a metal nut and reinforcing ribs. A metal nut is welded to the right end of the thickened connecting screw. The metal nut blocks the right end of the strip-shaped metal blocking plate. During the leftward movement of the thickened connecting screw, the strip-shaped metal blocking plate can be pushed to the left by the blocking effect of the metal nut. Reinforcing ribs are welded to the top, bottom and center of the outer wall of the right end of the strip-shaped metal blocking plate.
[0009] Preferably, the adjustable side blocking device further includes metal reinforcing rods and reinforcing rod movable holes. Reinforcing rod movable holes are provided on both the upper and lower sides of the adjusting screw hole. Metal reinforcing rods are inserted into both of the two reinforcing rod movable holes. The right ends of the two metal reinforcing rods are fixed to the outer wall of the left end of the strip-shaped metal blocking plate by welding.
[0010] Preferably, both the cuboid metal wedge A and the cuboid metal wedge B are hollow inside to reduce the overall weight. Metal mounting plates are welded to the left and right ends of the bottom of both the cuboid metal wedge A and the cuboid metal wedge B. Rubber protective pads are fixed to the rear end and top outer wall of the cuboid metal wedge A and the front end and top outer wall of the cuboid metal wedge B.
[0011] Preferably, the cuboid metal wedge A and cuboid metal wedge B are welded to the metal mounting plates at the left and right ends with triangular reinforcing plates, and bolt holes are provided on the front and rear sides of the center of the plurality of metal mounting plates.
[0012] Preferably, thickened fixing bolts are inserted into each of the plurality of bolt holes. After the cuboid metal wedge A and cuboid metal wedge B are placed in their corresponding positions on the transport vehicle flatbed, the plurality of thickened fixing bolts can be threaded into the pre-drilled bolt holes on the transport vehicle flatbed, so that the cuboid metal wedge A and cuboid metal wedge B are firmly installed on the transport vehicle flatbed.
[0013] Compared with the prior art, the present invention provides a fixing device for construction machinery transport vehicles, which has the following beneficial effects: This invention adds a novel adjustable side blocking device to both cuboid metal wedges used for fixing the tires of construction machinery. This adjustable side blocking device, a key auxiliary structure of cuboid metal wedges A and B, achieves precise lateral positioning of the construction machinery tires through a design of threaded adjustment and rigid blocking. It adapts to the fixing needs of tires of different sizes. Whether the tire's position on the transport vehicle's flatbed is slightly off, or there are size differences in the tire itself, the adjustable side blocking devices on both sides can be adjusted to ensure that the strip-shaped metal blocking plates on both sides fit against the left and right outer walls of the tire, respectively. This ensures precise lateral positioning of the tire and avoids fixing failure due to tire position or size issues. The strip-shaped metal blocking plates are arranged longitudinally. When the tire tends to shift laterally due to the transport vehicle turning or braking, the strip-shaped metal blocking plates can directly and rigidly contact the tire sidewall, forming an effective blockage. Compared to traditional rubber blocks, the metal blocking plates have stronger deformation resistance and can effectively prevent lateral tire slippage, avoiding safety hazards caused by overall displacement of the construction machinery. This device uses a thickened connecting screw that engages with an adjusting screw hole. Rotating the metal nut clockwise or counterclockwise allows the thickened connecting screw to move left and right within the adjusting screw hole, thereby pushing the strip-shaped metal baffle to move synchronously left and right. This adjustment method can flexibly change the distance between the strip-shaped metal baffle and the cuboid metal wedge A or cuboid metal wedge B, adapting to different widths of engineering machinery tires. This improves the versatility of the fixing device, reduces the device adaptation cost when changing different tires, and the core components of the adjustable side blocking device are all made of metal. The connection methods are mainly welding and threaded connections, resulting in a simple structure and low failure rate. If a component is worn, only the corresponding component needs to be replaced, without replacing the entire device, reducing later maintenance costs and difficulties. Attached Figure Description
[0014] Figure 1 This is a front-view three-dimensional structural diagram of a fixing device for a construction machinery transport vehicle according to the present invention.
[0015] Figure 2 This is a bottom-view three-dimensional structural diagram of a fixing device for construction machinery transport vehicles according to this utility model.
[0016] Figure 3 This is a front-view three-dimensional structural diagram of the adjustable side blocking device of this utility model.
[0017] Figure 4 This is a three-dimensional disassembly diagram of the adjustable side blocking device of this utility model.
[0018] In the diagram: 1. Adjustable side blocking device; 2. Metal mounting plate; 3. Rectangular metal wedge A; 4. Rubber protective pad; 5. Thickened fixing bolt; 6. Rectangular metal wedge B; 7. Triangular reinforcing plate; 8. Strip-shaped metal connecting block; 9. Adjusting screw hole; 10. Thickened connecting screw; 11. Metal nut; 12. Strip-shaped metal blocking plate; 13. Reinforcing rib; 14. Screw through hole; 15. Metal reinforcing rod; 16. Reinforcing rod movable hole. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] This utility model provides, for example Figure 1-4The illustrated fixing device for a construction machinery transport vehicle includes a rectangular metal wedge A3 and rectangular metal wedges B6 symmetrically arranged behind the rectangular metal wedge A3. The rectangular metal wedges A3 and B6 are identical in shape, size, and structure. The outer wall of the rear end of the rectangular metal wedge A3 and the outer wall of the front end of the rectangular metal wedge B6 are both beveled. Both the rectangular metal wedges A3 and B6 are fixed to the flatbed of the transport vehicle. The rectangular metal wedges A3 and B6 are respectively positioned on the flatbed of the transport vehicle. The rectangular metal wedges A3 and B6 are placed at the front and rear ends of the bottom of the construction machinery tire, with their inclined surfaces facing the tire. The inclined surface design is based on the wedge self-locking principle. When the tire tends to slide forward due to the braking of the transport vehicle, the outer wall of the tire will fit tightly against the inclined surface of the rectangular metal wedge A3. The reaction force generated by the inclined surface can prevent the tire from sliding. Similarly, when the vehicle starts or goes uphill, the inclined surface of the rectangular metal wedge B6 can prevent the tire from sliding backward, achieving bidirectional limiting at both the front and rear. Compared with flat blocks, the inclined surface has a larger contact area and stronger limiting stability.
[0021] like Figure 1 and Figure 2 As shown, both cuboid metal wedges A3 and B6 are hollow inside. This design significantly reduces the weight of the device (30%-40% weight reduction compared to a solid structure) while ensuring the overall rigidity of the wedges, facilitating manual handling and installation, and reducing the additional load on the transport vehicle's flatbed. Simultaneously, metal mounting plates 2 are welded to the left and right ends of the wedge's bottom. Triangular reinforcing plates 7 are welded between the wedge and the mounting plates 2. Utilizing the principle of triangular stability, the triangular reinforcing plates 7 strengthen the connection between the wedge and the mounting plates, preventing cracking at the weld due to long-term stress and ensuring that the overall structure of the wedge is not easily deformed. The rear end of cuboid metal wedge A3 and... Rubber protective pads 4 are fixed to the top outer wall, the front end of the cuboid metal wedge B6, and the top outer wall. The rubber material is elastic and can buffer the vibration and friction between the tire and the wedge, preventing the metal wedge from directly hitting the tire sidewall during transportation and preventing tire scratches or wear. Bolt holes are provided on both the front and rear sides of the center of multiple metal mounting plates 2. Thickened fixing bolts 5 are inserted into the holes. After the wedge is placed in the corresponding position on the plate, the thickened fixing bolts 5 are threaded and fixed in the reserved screw holes of the plate. The threaded connection of the thickened fixing bolts 5 has self-locking properties, which can firmly fix the wedge on the plate, prevent the wedge from shifting due to vehicle vibration, and ensure accurate limit position.
[0022] like Figure 1 , Figure 3 and Figure 4As shown, adjustable side blocking devices 1 are provided at the front end of the cuboid metal wedge A3 and the rear end of the cuboid metal wedge B6. The adjustable side blocking device 1 at the front end of the cuboid metal wedge A3 includes a strip-shaped metal connecting block 8 and an adjusting screw hole 9. The strip-shaped metal connecting block 8 is welded and fixed to the outer wall of the front end of the cuboid metal wedge A3, and the adjusting screw hole 9 (open at the right end) is provided horizontally at the center. The welding and fixing method ensures the rigid connection between the connecting block and the wedge, and avoids the connecting block from loosening during adjustment. The thread specification of the adjusting screw hole 9 matches the thickened connecting screw 10, providing a basis for subsequent thread adjustment. The strip-shaped metal blocking plate 12 is located longitudinally between the strip-shaped metal connecting block 8 and the wedge. On the right side of wedge A, near the center of its front end, there is a screw through hole 14. A thickened connecting screw 10 is inserted into the screw through hole 14, and its left end is threaded into the adjusting screw hole 9. The thickened connecting screw 10, the strip-shaped metal connecting block 8, and wedge A have equal lateral lengths to ensure that the screw adjustment will not exceed the overall range of the device. The screw can rotate clockwise and counterclockwise in the through hole and move left and right in the adjusting screw hole 9 through the thread action. This adjustment principle is based on thread transmission. Rotating the screw can change its extension length, thereby pushing the strip-shaped metal baffle 12 to move left and right synchronously, realizing flexible adjustment of the distance between the baffle and the tire sidewall, which can be adapted to engineering machinery tires of different widths.
[0023] like Figure 1 , Figure 3 and Figure 4 As shown, a metal nut 11 is welded to the right end of the thickened connecting screw 10. The nut blocks the right end of the strip-shaped metal baffle plate 12. When the screw rotates to the left, the nut will exert a leftward pushing force on the baffle plate, causing the baffle plate to move closer to the tire. The metal nut 11 not only facilitates the application of force by a wrench to rotate the screw, but also prevents the screw from falling out of the screw through hole 14. Reinforcing ribs 13 are welded to the top, bottom, and center of the outer wall of the right end of the strip-shaped metal baffle plate 12. The reinforcing ribs 13 utilize the rigidity of the metal material to enhance the baffle plate's resistance to deformation, making it less prone to bending when subjected to lateral forces (such as tire sideslip impact), ensuring lateral resistance. For limiting the movement, the upper and lower sides of the adjusting screw hole 9 are provided with reinforcing rod movable holes 16, and metal reinforcing rods 15 are inserted into the holes. The right end of the metal reinforcing rod 15 is welded to the outer wall of the left end of the strip-shaped metal blocking plate 12. The metal reinforcing rod 15 moves left and right synchronously with the blocking plate. Its functions are: first, to limit the movement direction of the blocking plate and prevent the blocking plate from tilting or shifting when under force, ensuring that the blocking plate is always perpendicular to the tire sidewall and ensuring the effectiveness of lateral blocking; second, to form a three-point support structure with the thickened connecting screw 10, dispersing the lateral force borne by the blocking plate, preventing the screw from bending due to excessive force on one side, and extending the service life of the adjusting component.
[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, two sets of adjustable side blocking devices 1 (front end of cuboid metal wedge A3 and rear end of cuboid metal wedge B6) are used together. By adjusting them, the strip-shaped metal blocking plates 12 on both sides can be made to fit against the left and right outer walls of the tire. Regardless of whether the tire is slightly offset from its position on the flatbed or there is a difference in tire width, the two sets of devices can be adjusted independently to achieve lateral limiting in both directions, preventing the tire from sliding laterally when the vehicle is turning or bumping. Combined with the front and rear bidirectional limiting of cuboid metal wedge A3 and cuboid metal wedge B6, a four-way three-dimensional limiting is formed, which greatly improves the stability of the engineering machinery during transportation and reduces the safety hazards caused by equipment displacement.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fixing device for a construction machinery transport vehicle, comprising a cuboid metal wedge A (3) and cuboid metal wedges B (6) symmetrically arranged on the rear side of the cuboid metal wedge A (3), wherein the cuboid metal wedge A (3) and the cuboid metal wedge B (6) are identical in shape, size and structural composition, the outer wall of the rear end of the cuboid metal wedge A (3) and the outer wall of the front end of the cuboid metal wedge B (6) are both inclined, the cuboid metal wedge A (3) and the cuboid metal wedge B (6) are both fixed on the flatbed of the transport vehicle, the cuboid metal wedge A (3) and the cuboid metal wedge B (6) are respectively located at the front end and rear end of the bottom of the construction machinery tires parked on the flatbed of the transport vehicle, and the inclined surfaces of the cuboid metal wedge A (3) and the cuboid metal wedge B (6) are both facing the construction machinery tires, characterized in that: The front end of the cuboid metal wedge A (3) and the rear end of the cuboid metal wedge B (6) are both provided with adjustable side blocking devices (1). The adjustable side blocking device (1) at the front end of the cuboid metal wedge A (3) includes a strip-shaped metal connecting block (8) and an adjusting screw hole (9). The strip-shaped metal connecting block (8) is welded and fixed to the outer wall of the front end of the cuboid metal wedge A (3). An adjusting screw hole (9) is provided horizontally inside the center of the strip-shaped metal connecting block (8), and the right end of the adjusting screw hole (9) is open.
2. A construction machine transport vehicle securing device according to claim 1, characterised in that: The adjustable side blocking device (1) further includes a thickened connecting screw (10), a strip-shaped metal blocking plate (12), and a screw through hole (14). The strip-shaped metal blocking plate (12) is located longitudinally on the right side of the strip-shaped metal connecting block (8) and the cuboid metal wedge block A (3). The strip-shaped metal blocking plate (12) has a screw through hole (14) inside near the front center. The thickened connecting screw (10) is inserted into the screw through hole (14), and the left end of the thickened connecting screw (10) is threaded into the adjusting screw hole (9).
3. A construction machine transport vehicle securing device according to claim 2, characterised in that: The thickened connecting screw (10), the strip-shaped metal connecting block (8), and the cuboid metal wedge block A (3) have equal lateral lengths. The thickened connecting screw (10) can rotate clockwise and counterclockwise in the screw through hole (14). The clockwise and counterclockwise rotation of the thickened connecting screw (10) can move left and right inside the adjusting screw hole (9) through the action of the thread.
4. A construction machine transport vehicle securing device according to claim 3, characterised in that: The adjustable side blocking device (1) also includes a metal nut (11) and a reinforcing rib (13). The right end of the thickened connecting screw (10) is welded with a metal nut (11). The metal nut (11) blocks the right end of the strip-shaped metal blocking plate (12). During the leftward movement of the thickened connecting screw (10), the strip-shaped metal blocking plate (12) can be pushed to the left by the blocking effect of the metal nut (11). The top, bottom and center of the right outer wall of the strip-shaped metal blocking plate (12) are all welded with reinforcing ribs (13).
5. A construction machine transport vehicle securing device according to claim 1, characterised in that: The adjustable side blocking device (1) also includes a metal reinforcing rod (15) and a reinforcing rod movable hole (16). The upper and lower sides of the adjusting screw hole (9) are provided with reinforcing rod movable holes (16). A metal reinforcing rod (15) is inserted into each of the two reinforcing rod movable holes (16). The right ends of the two metal reinforcing rods (15) are fixed to the outer wall of the left end of the strip metal blocking plate (12) by welding.
6. A fixing device for construction machinery transport vehicles according to claim 1, characterized in that: Both the cuboid metal wedge A (3) and the cuboid metal wedge B (6) are hollow inside to reduce the overall weight. Both the bottom left and right ends of the cuboid metal wedge A (3) and the cuboid metal wedge B (6) are welded with metal mounting plates (2). The rear end and top outer wall of the cuboid metal wedge A (3) and the front end and top outer wall of the cuboid metal wedge B (6) are fixed with rubber protective pads (4).
7. A construction machine transport vehicle securing device according to claim 6, characterised in that: The cuboid metal wedge A (3) and cuboid metal wedge B (6) are all welded to the metal mounting plates (2) at the left and right ends with triangular reinforcing plates (7). Bolt holes are provided on the front and back sides of the center of the multiple metal mounting plates (2).
8. A construction machine transport vehicle securing device according to claim 7, characterised in that: Each of the bolt holes is fitted with a thickened fixing bolt (5). After the cuboid metal wedge A (3) and cuboid metal wedge B (6) are placed in their respective positions on the transport vehicle flatbed, the thickened fixing bolts (5) can be threaded into the pre-drilled bolt holes on the transport vehicle flatbed, so that the cuboid metal wedge A (3) and cuboid metal wedge B (6) are firmly installed on the transport vehicle flatbed.