A transfer device suitable for use in field rescues

Abstract

The application relates to the technical field of transfer equipment, and discloses a transfer device suitable for field rescue, which aims to solve the problem that wheels cannot normally pass through due to terrain, and the end of a vehicle body is provided with a trouble-removing wheel; under normal conditions, the trouble-removing wheel is lifted and does not participate in work; when the driving wheel is hindered in movement due to terrain, the trouble-removing wheel is forced to deflect forward, the driving wheel is lifted by the trouble-removing wheel, thereby the trouble-removing work is performed, the trouble-removing wheel rotates synchronously with the driving wheel, when the trouble-removing wheel contacts the ground, the vehicle body can continue to be pushed forward, the lifting of the driving wheel is avoided, the phenomenon that the driving is cut off is avoided, and the self-trouble-removing effect is realized.

Description

Technical Field

[0001] This application relates to the technical field of transfer equipment, and in particular to a transfer device suitable for battlefield rescue. Background Technology

[0002] Battlefield rescue evacuation vehicles are used for the rapid transport of wounded soldiers and military aid supplies on the battlefield. They typically possess good mobility and protection capabilities, enabling them to operate in complex and hazardous environments. These vehicles play a crucial role in improving rescue efficiency and ensuring personnel safety during wartime and emergencies.

[0003] Current battlefield rescue transport vehicles generally use round wheel hubs for propulsion. While this hub design does facilitate vehicle movement, it presents challenges in battlefield environments where ground conditions are often uneven. When round wheel hubs encounter ditches or uneven ground, they can easily get stuck, preventing the wheels from turning properly and severely hindering the smooth progress of transport operations.

[0004] In battlefield environments, the terrain is complex and varied, with obstacles such as ditches, slopes, and loose rocks everywhere. When transport vehicles attempt to traverse these obstacles, their round wheel hubs, due to their design limitations, often struggle to adapt to these terrain changes. When the wheels encounter a ditch, they easily become stuck due to insufficient space, rendering the vehicle immobile. This not only delays rescue efforts but may also damage the medical equipment and wounded personnel on board, negatively impacting the treatment outcome. Summary of the Invention

[0005] This application proposes a transfer device suitable for battlefield rescue, which has the advantage of autonomous escape, in order to solve the problem mentioned in the background art where the wheels cannot pass normally due to terrain.

[0006] To achieve the above objectives, this application adopts the following technical solution: A transfer device suitable for battlefield rescue, comprising: a vehicle body, a drive shaft movably mounted at the front end, a drive wheel mounted at the end of the drive shaft, a drive unit for providing power to the drive shaft fixedly mounted at the end of the vehicle body, and a steering wheel movably mounted at the rear end of the vehicle body; a support base, movably fitted on the outside of the drive shaft, and a support top seat connected to the surface of the support base via a positioning rod; a drive sprocket, movably mounted on the inside of the support base and coaxially fixed to the drive shaft; an intermediate sprocket, movably mounted on the inside of the support base and located on one side of the drive sprocket; a driven sprocket, movably mounted on the inside of the support top seat, and a traction wheel coaxially fixed to the driven sprocket mounted on the outside of the support top seat; the driven sprocket, drive sprocket, and intermediate sprocket are connected by chain drive; a reversing wheel sleeve coaxially fixed to the intermediate sprocket is provided on the outside of the support base, and a reversing tooth is fixedly mounted on the outside of the reversing wheel sleeve; a detection gear located on one side of the reversing wheel sleeve is fitted on the outside of the drive shaft.

[0007] Furthermore, the outer side of the reversing wheel sleeve is made of rubber.

[0008] Furthermore, the diameter of the drive wheel is 1.5-2.5 times the diameter of the test gear.

[0009] Furthermore, anti-slip blades are fixedly connected to the outer side of the drive wheel.

[0010] Furthermore, it also includes: a stop, fixed to the front end of the vehicle body and located on one side of the detection gear; a movement limiting rod, fitted inside the stop, with an anti-disengagement spring between the movement limiting rod and the stop, one end of the movement limiting rod extending to the outside of the stop to limit the movement of the detection gear; and a damping hole formed on the surface of the movement limiting rod.

[0011] Furthermore, the end shape of the limiting rod is triangular.

[0012] Furthermore, a positioning spring is provided between the top support and the base support, located on the outside of the positioning rod, which is a telescopic cylindrical rod.

[0013] Furthermore, there are four positioning rods, all of which are used to connect the top support and the base support.

[0014] The present invention has the following beneficial effects:

[0015] This application provides a transport device suitable for battlefield rescue, which has traction wheels at the ends of the vehicle body. Under normal circumstances, the traction wheels are raised and do not participate in the work. When the drive wheels are obstructed due to terrain, the traction wheels are forced to deflect forward, using the traction wheels to raise the drive wheels, thereby performing the traction work. Moreover, the traction wheels rotate synchronously with the drive wheels. When the traction wheels touch the ground, they can continue to propel the vehicle body forward, avoiding the phenomenon of drive disconnection caused by raising the drive wheels, thus achieving the effect of autonomous traction. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0017] This application can be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure.

[0019] Figure 2 This is a schematic diagram of the overall power head structure;

[0020] Figure 3 This is a schematic diagram of the internal structure of the support base;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the movement limiting rod.

[0022] In the diagram: 1. Vehicle body; 100. Steering wheel; 2. Drive unit; 3. Drive wheel; 300. Anti-slip blade; 4. Detection gear; 5. Support base; 6. Drive shaft; 7. Chain; 8. Positioning rod; 9. Positioning spring; 10. Support top seat; 11. Movement limiting rod; 110. Damping orifice; 12. Stop frame; 13. Escape wheel; 14. Reversing wheel sleeve; 140. Reversing gear; 15. Driven sprocket; 16. Drive sprocket; 17. Intermediate sprocket; 18. Anti-detachment top spring. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] Example 1

[0025] Please see Figure 1A drive shaft 6 is movably mounted on the front end of the vehicle body 1, and two drive wheels 3 are respectively mounted on both ends of the drive shaft 6. A drive unit 2 for providing power to the drive shaft 6 is fixedly mounted on the end of the vehicle body 1. Power is provided by the drive unit 2, thereby enabling the drive wheels 3 to drive the vehicle body 1 forward. A steering wheel 100 is movably mounted on the rear end of the vehicle body 1, and the steering wheel 100 is used to realize the steering function, so as to ensure that the vehicle body 1 can move quickly when transferring the wounded or the goods. This is also the main structure of the current transfer trolley.

[0026] Because the current drive wheel 3, during its movement, is difficult to extricate itself from ditches or other obstacles, thus affecting normal transport operations, this embodiment aims to solve this problem by referring to... Figure 2 and Figure 3 It can be seen that the outer side of the drive shaft 6 is movably fitted with a support base 5, and the surface of the support base 5 is connected to a support top seat 10 via a positioning rod 8. The weight of one end of the support base 5 is greater than the weight of the support top seat 10. Figure 3 It can be seen that, under normal conditions, the positioning rod 8 is vertically pulled up due to the weight of the support base 5. A drive sprocket 16, coaxially fixed to the drive shaft 6, is movably mounted on the inner side of the support base 5. An intermediate sprocket 17 located on one side of the drive sprocket 16 is movably mounted on the inner side of the support base 5. A driven sprocket 15 is movably mounted on the inner side of the support top seat 10. A traction wheel 13, coaxially fixed to the driven sprocket 15, is mounted on the outer side of the support top seat 10. Furthermore, the driven sprocket 15, drive sprocket 16, and intermediate sprocket 17 are connected by a chain 7. Therefore, when the drive shaft 6 is rotated by the drive unit 2, it will synchronously drive the intermediate sprocket 17 and the driven sprocket 15 to rotate. Figure 2 It can be seen that a reversing gear sleeve 14, coaxially fixed with the intermediate sprocket 17, is provided on the outer side of the support base 5, and a reversing tooth 140 is fixedly installed on the outer side of the reversing gear sleeve 14. Figure 2 As can be seen, the outer side of the drive shaft 6 is fitted with a detection gear 4 located on one side of the reversing wheel sleeve 14, so that when the reversing gear 140 rotates to the outside of the detection gear 4, the two mesh to achieve power transmission.

[0027] In this first embodiment, the outer side of the reversing wheel sleeve 14 is made of a rubber sleeve, from Figure 2 As can be seen, the reversing wheel sleeve 14 can be locked in the teeth on the outside of the detection gear 4 by the outer rubber sleeve, thereby restricting the movement of the support base 5. When the reversing tooth 140 meshes in the teeth on the outside of the detection gear 4, the reversing wheel sleeve 14 can be forced to move.

[0028] To ensure that the detection gear 4 can detect whether it is stuck in a ditch, the diameter of the drive wheel 3 is 1.5-2.5 times the diameter of the detection gear 4. This way, when the drive wheel 3 contacts the ground, the detection gear 4 is in a relatively suspended state, thus preventing the detection gear 4 from contacting the ground.

[0029] During normal transport, the drive wheel 3 supports the vehicle body 1. At this time, the detection gear 4 is suspended in the air, and the support base 5, under its own weight, will force the support top seat 10 to rise. As the drive unit 2 drives the drive wheel 3 to rotate, the transport work is realized.

[0030] When drive wheel 3 gets stuck in a ditch or other ditch, it will shift downwards. At this time, detection gear 4 will be pressed into the ground, thus restricting its movement. Figure 3 and Figure 2 As can be seen, as the drive shaft 6 drives the drive sprocket 16 to rotate counterclockwise, the reversing wheel sleeve 14 will drive the reversing gear 140 to rotate counterclockwise as well. When the reversing gear 140 meshes on the outer side of the detection gear 4, since the detection gear 4 cannot rotate at this time, the reversing gear 140 drives the reversing wheel sleeve 14 to rotate counterclockwise along the outer side of the detection gear 4. Since the reversing gear 140 is a partial tooth, the support base 5 will continuously deflect the support top seat 10 forward with the drive shaft 6 as the rotation point until the escape wheel 13 touches the ground. Since the escape wheel 13 also rotates with the drive shaft 6, as the escape wheel 13 supports the front end of the vehicle body 1 and the escape wheel 13 rotates forward, the front end of the vehicle body 1 is forced to move forward, thereby achieving the purpose of automatic escape.

[0031] Once the vehicle is freed from its entrapment, the detection gear 4 moves away from the ground, and the support base 5 deflects downward under its own weight, causing the support top seat 10 to move back above the drive wheel 3, and then it begins to rotate again.

[0032] from Figures 1-3 It can be clearly seen that the outer side of the drive wheel 3 is fixedly connected with an anti-slip leaf 300. The outward protruding anti-slip leaf 300 can increase the friction between the drive wheel 3 and the ground. On the other hand, when the front end of the vehicle body 1 is blocked, the drive wheel 3 cannot flip up. Then, as the drive wheel 3 continues to rotate, the mud below is transported backward by the drive wheel 3, causing the drive wheel 3 to sink. The downward detection gear 4 is pressed on the ground, ensuring that the support top seat 10 can drive the escape wheel 13 to deflect forward, so as to ensure the stable operation of the vehicle body 1 in the escape work.

[0033] Example 2

[0034] For further improvements based on Example 1, please refer to [link / reference]. Figure 2 and Figure 4It can be seen that a stop 12 is fixedly installed at the front end of the vehicle body 1, located on one side of the detection gear 4. A limiting rod 11 is movably mounted on the inner side of the stop 12. An anti-detachment spring 18 is provided between the limiting rod 11 and the stop 12. Based on the elastic force of the anti-detachment spring 18, the limiting rod 11 always has a tendency to push outward. A damping hole 110 is opened on the surface of the limiting rod 11. Thus, when the limiting rod 11 moves in the stop 12, the damping hole 110 can make the limiting rod 11 move slowly, thereby limiting the movement speed of the limiting rod 11. In this embodiment, the damping medium is not limited to gas. A liquid medium, such as hydraulic oil, can also be injected into the inner side of the stop 12 to improve the damping performance. One end of the limiting rod 11 extends to the outer side of the stop 12. Figure 4 As can be seen, the end of the limiting rod 11 is triangular in shape. The end of the triangle is inserted into the outside of the detection gear 4, and combined with the elastic force of the anti-disengagement top spring 18, the movement of the detection gear 4 is restricted.

[0035] In practical application, the limiting rod 11 is pushed against the outside of the detection gear 4 by the elastic force of the anti-detachment top spring 18. As the reversing gear 140 meshes with the detection gear 4, the reversing wheel sleeve 14 climbs up the detection gear 4, causing the detection gear 4 to always be subjected to a certain deflection force, which in turn pushes the limiting rod 11 to gradually compress the anti-detachment top spring 18. Due to the presence of the damping hole 110, the limiting rod 11 slowly disengages from the detection gear 4, ensuring that when the detection gear 4 is not stuck in the ground, it is subjected to the gravity of the reversing wheel sleeve 14 on the outside of the detection gear 4, so that the detection gear 4 has a certain deflection force, pushing the limiting rod 11 to retract, thus preventing the escape wheel 13 from being accidentally extended forward when the vehicle body 1 is moving normally.

[0036] When the detection gear 4 gets stuck on the ground, its movement is restricted. Then, as the escape wheel 13 continues to deflect forward, it lifts the front end of the vehicle body 1, thereby enabling the drive wheel 3 to escape. At the same time, as the front end of the vehicle body 1 is lifted, the detection gear 4 is released. However, during the process of the detection gear 4 being deflected and pressed against the limiting rod 11, the limiting rod 11 is slowly disengaged from the detection gear 4 due to the influence of the damping hole 110. This ensures that when the front end of the vehicle body 1 is lifted, the detection gear 4 is still affected by the limiting rod 11 and maintains the tendency of the escape wheel 13 to deflect forward. This ensures that the escape wheel 13 has enough time to lift the drive wheel 3 forward, thus ensuring the stable operation of the escape action.

[0037] Example 3

[0038] For further improvements based on Example 2, please refer to [link / reference]. Figure 2 and Figure 3As can be seen, a positioning spring 9 is provided between the top support 10 and the base support 5, located outside the positioning rod 8. The positioning rod 8 is a telescopic cylindrical rod, and there are four positioning rods 8. All four positioning rods 8 are used to connect the top support 10 and the base support 5. Under normal conditions, the top support 10 is moved away from the base support 5 by the elastic force of the positioning spring 9, which ensures that the above-mentioned contents can operate stably.

[0039] In this third embodiment, the support top seat 10 and the support base 5 can retract. Therefore, if the escape wheel 13 deflects forward and passes over an obstacle after encountering a protruding obstruction at the front of the vehicle body 1, the lifting height provided by the escape wheel 13 to the vehicle body 1 will be insufficient for the drive wheel 3 to pass over the obstacle. This third embodiment, through a reasonable arrangement, addresses this by combining [the above-mentioned elements] during the process where the drive wheel 3 is obstructed, causing the support top seat 10 to deflect forward. Figure 2 As can be seen, as the traction wheel 13 deflects forward, the reversing wheel sleeve 14 and the reversing tooth 140 gradually approach the limiting rod 11. If the traction wheel 13 still fails to lift the front end of the vehicle body 1 after the reversing tooth 140 contacts the limiting rod 11, it indicates that the traction wheel 13 has passed the obstacle in front of the drive wheel 3. Afterward, the rotation of the reversing tooth 140 will be blocked on the outside of the limiting rod 11. The limiting rod 11 restricts the rotation of the reversing tooth 140, thereby restricting the rotation of the intermediate sprocket 17. (Refer to...) Figure 3 It can be seen that when the intermediate sprocket 17 is restricted from rotating, the rotation of the drive sprocket 16 will pull the support top seat 10 towards the support base 5 via the chain 7, thereby compressing the positioning spring 9 by the support top seat 10 and the support base 5. The escape wheel 13 approaches the support base 5. Since the escape wheel 13 is deflected forward at this time, when the escape wheel 13 approaches the support base 5, the escape wheel 13 will gradually approach the obstacle in front of the drive wheel 3. As the escape wheel 13 gradually climbs the obstacle, it will force the drive wheel 3 to be lifted, so that the drive wheel 3 has the ability to cross the obstacle.

[0040] Finally, after the drive wheel 3 passes the obstacle, the detection gear 4 is also released from the pressure. Then, with the gravity of the reversing wheel sleeve 14 pressing on the outside of the detection gear 4, the detection gear 4 is forced to rotate clockwise. As a result, the limiting rod 11 is retracted based on the detection gear 4. The unobstructed detection gear 4 is rotated by the reversing wheel sleeve 14 until the escape wheel 13 returns to its normal position, that is, the escape wheel 13 is above the drive wheel 3.

Claims

1. A transfer device suitable for battlefield rescue, characterized in that, include: The vehicle body (1) has a drive shaft (6) movably mounted at the front end, a drive wheel (3) mounted at the end of the drive shaft (6), a drive unit (2) for providing power to the drive shaft (6) fixedly mounted at the end of the vehicle body (1), and a steering wheel (100) movably mounted at the rear end of the vehicle body (1). The support base (5) is movably mounted on the outside of the drive shaft (6), and the surface of the support base (5) is connected to the support top seat (10) via the positioning rod (8). The drive sprocket (16) is movably mounted on the inner side of the support base (5) and fixed coaxially with the drive shaft (6); The intermediate sprocket (17) is movably mounted inside the support base (5) and located on one side of the drive sprocket (16); Driven sprocket (15) is movably installed on the inner side of support top seat (10), and a get-out wheel (13) is installed on the outer side of support top seat (10) and is coaxially fixed with driven sprocket (15). The driven sprocket (15), the drive sprocket (16) and the intermediate sprocket (17) are connected by a chain (7) for transmission. The outer side of the support base (5) is provided with a reversing wheel sleeve (14) that is coaxially fixed with the intermediate sprocket (17), and a reversing tooth (140) is fixedly installed on the outer side of the reversing wheel sleeve (14). The outer side of the drive shaft (6) is fitted with a detection gear (4) located on one side of the reversing wheel sleeve (14). The diameter of the drive wheel (3) is 1.5-2.5 times the diameter of the test gear (4); During normal transport, the drive wheel (3) supports the vehicle body (1). At this time, the detection gear (4) is suspended in the air, while the support base (5) will force the support top seat (10) to lift under its own weight. When the detection gear (4) is pressed into the ground, the movement of the detection gear (4) is restricted. As the drive shaft (6) drives the drive sprocket (16) to rotate counterclockwise, the reversing wheel sleeve (14) drives the reversing tooth (140) to rotate counterclockwise as well. When the reversing tooth (140) meshes on the outside of the detection gear (4), the detection gear (4) cannot rotate. This causes the reversing tooth (140) to drive the reversing wheel sleeve (14) to rotate counterclockwise along the outside of the detection gear (4). The reversing tooth (140) is a partial tooth, which causes the support base (5) to continuously deflect the support top seat (10) forward with the drive shaft (6) as the rotation point until the escape wheel (13) is on the ground. The escape wheel (13) also rotates with the drive shaft (6). As the escape wheel (13) supports the front end of the vehicle body (1) and the escape wheel (13) rotates forward, the front end of the vehicle body (1) is forced to move forward, thereby achieving the purpose of automatic escape.

2. The transfer device for battlefield rescue according to claim 1, characterized in that, The outer side of the reversing wheel sleeve (14) is made of rubber.

3. The transfer device for battlefield rescue according to claim 1, characterized in that, Anti-slip blades (300) are fixedly connected to the outer side of the drive wheel (3).

4. The transfer device for battlefield rescue according to claim 1, characterized in that, It also includes: The stop (12) is fixed to the front end of the vehicle body (1) and located on one side of the detection gear (4); A limiting rod (11) is fitted inside the stop (12), and an anti-disengagement spring (18) is provided between the limiting rod (11) and the stop (12). One end of the limiting rod (11) extends to the outside of the stop (12) to limit the movement of the detection gear (4). Damping orifice (110) is formed on the surface of the limiting rod (11).

5. The transfer device for battlefield rescue according to claim 4, characterized in that, The end of the limiting rod (11) is triangular.

6. The transfer device for battlefield rescue according to claim 4, characterized in that, A positioning spring (9) located outside the positioning rod (8) is provided between the support top seat (10) and the support base (5). The positioning rod (8) is a telescopic cylindrical rod.

7. The transfer device for battlefield rescue according to claim 6, characterized in that, There are four positioning rods (8), and all four positioning rods (8) are used to connect the top support (10) and the base support (5).

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